detached d921a00

fix(favicon): use upstream purego WebP module

commit
d921a000b6ac0cccacee5198e040c9dc1e1e327b
author
brice · · 2026-07-14 15:29 UTC
committer
brice · · 2026-07-14 17:23 UTC
parent
ea79ba3
signature
GPG VerifiedCD88F9E564E0102646FB6077A1A07C7C7C3E349D · arch-gpg Verified for the committer email
10 files · +4 -1678
Unified
UnifiedSplit
M go.mod +1 -3
@@ -10,7 +10,7 @@ require (
1010 github.com/bnema/purego-cef2gtk v0.8.4-0.20260714160309-bbd397409ebe
1111 github.com/bnema/purego-pipewire v0.1.5-0.20260714124450-6504b9cdf02a
1212 github.com/bnema/purego-sqlite v0.1.4-0.20260714131321-3614fe683b9c
13- github.com/bnema/purego-webp v0.2.1-0.20260714121650-bc33db63042a
13+ github.com/bnema/purego-webp v0.2.1-0.20260714152238-7bc9c402fdf6
1414 github.com/bnema/puregotk v0.7.1-0.20260714170452-0b6b9b901234
1515 github.com/charmbracelet/bubbles v1.0.0
1616 github.com/charmbracelet/bubbletea v1.3.10
@@ -83,5 +83,3 @@ require (
8383 )
8484
8585 tool github.com/a-h/templ/cmd/templ
86-
87-replace github.com/bnema/purego-webp => ./third_party/purego-webp
@@ -10,7 +10,7 @@ require (
10 github.com/bnema/purego-cef2gtk v0.8.4-0.20260714160309-bbd397409ebe10 github.com/bnema/purego-cef2gtk v0.8.4-0.20260714160309-bbd397409ebe
11 github.com/bnema/purego-pipewire v0.1.5-0.20260714124450-6504b9cdf02a11 github.com/bnema/purego-pipewire v0.1.5-0.20260714124450-6504b9cdf02a
12 github.com/bnema/purego-sqlite v0.1.4-0.20260714131321-3614fe683b9c12 github.com/bnema/purego-sqlite v0.1.4-0.20260714131321-3614fe683b9c
13- github.com/bnema/purego-webp v0.2.1-0.20260714121650-bc33db63042a13+ github.com/bnema/purego-webp v0.2.1-0.20260714152238-7bc9c402fdf6
14 github.com/bnema/puregotk v0.7.1-0.20260714170452-0b6b9b90123414 github.com/bnema/puregotk v0.7.1-0.20260714170452-0b6b9b901234
15 github.com/charmbracelet/bubbles v1.0.015 github.com/charmbracelet/bubbles v1.0.0
16 github.com/charmbracelet/bubbletea v1.3.1016 github.com/charmbracelet/bubbletea v1.3.10
@@ -83,5 +83,3 @@ require (
83 )83 )
84 84
85 tool github.com/a-h/templ/cmd/templ85 tool github.com/a-h/templ/cmd/templ
86-
87-replace github.com/bnema/purego-webp => ./third_party/purego-webp
M go.sum +2 -0 generated file: collapsed
load diff
D third_party/purego-webp/LICENSE +0 -21
@@ -1,21 +0,0 @@
1-MIT License
2-
3-Copyright (c) 2026 bnema
4-
5-Permission is hereby granted, free of charge, to any person obtaining a copy
6-of this software and associated documentation files (the "Software"), to deal
7-in the Software without restriction, including without limitation the rights
8-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9-copies of the Software, and to permit persons to whom the Software is
10-furnished to do so, subject to the following conditions:
11-
12-The above copyright notice and this permission notice shall be included in all
13-copies or substantial portions of the Software.
14-
15-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21-SOFTWARE.
@@ -1,21 +0,0 @@
1-MIT License
2-
3-Copyright (c) 2026 bnema
4-
5-Permission is hereby granted, free of charge, to any person obtaining a copy
6-of this software and associated documentation files (the "Software"), to deal
7-in the Software without restriction, including without limitation the rights
8-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9-copies of the Software, and to permit persons to whom the Software is
10-furnished to do so, subject to the following conditions:
11-
12-The above copyright notice and this permission notice shall be included in all
13-copies or substantial portions of the Software.
14-
15-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21-SOFTWARE.
D third_party/purego-webp/UPSTREAM +0 -4
@@ -1,4 +0,0 @@
1-Source: https://github.com/bnema/purego-webp
2-Commit: bc33db63042a1087e349e2e8cb3d42b57df784d9
3-Patch: loader import uses Dumber's existing github.com/bnema/purego runtime.
4-Reason: both purego implementations export the same syscall linknames and cannot coexist in one binary.
@@ -1,4 +0,0 @@
1-Source: https://github.com/bnema/purego-webp
2-Commit: bc33db63042a1087e349e2e8cb3d42b57df784d9
3-Patch: loader import uses Dumber's existing github.com/bnema/purego runtime.
4-Reason: both purego implementations export the same syscall linknames and cannot coexist in one binary.
D third_party/purego-webp/go.mod +0 -5
@@ -1,5 +0,0 @@
1-module github.com/bnema/purego-webp
2-
3-go 1.26
4-
5-require github.com/bnema/purego v0.11.0-bnema.4
@@ -1,5 +0,0 @@
1-module github.com/bnema/purego-webp
2-
3-go 1.26
4-
5-require github.com/bnema/purego v0.11.0-bnema.4
D third_party/purego-webp/internal/libwebp/generated_symbols.go +0 -513
@@ -1,513 +0,0 @@
1-// Code generated by ./cmd/gen; DO NOT EDIT.
2-
3-package libwebp
4-
5-var (
6- xWebPGetInfo func(data *byte, dataSize uintptr, width *int32, height *int32) int32
7- xWebPDecodeRGBA func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
8- xWebPDecodeARGB func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
9- xWebPDecodeBGRA func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
10- xWebPDecodeRGB func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
11- xWebPDecodeBGR func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
12- xWebPDecodeRGBAInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
13- xWebPDecodeARGBInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
14- xWebPDecodeBGRAInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
15- xWebPDecodeRGBInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
16- xWebPDecodeBGRInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
17- xWebPDecodeYUV func(data *byte, dataSize uintptr, width *int32, height *int32, u **byte, v **byte, stride *int32, uvStride *int32) *byte
18- xWebPDecodeYUVInto func(data *byte, dataSize uintptr, luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) *byte
19- xWebPGetFeaturesInternal func(data *byte, dataSize uintptr, features *WebPBitstreamFeatures, abiVersion int32) VP8StatusCode
20- xWebPInitDecBufferInternal func(buffer *WebPDecBuffer, abiVersion int32) int32
21- xWebPFreeDecBuffer func(buffer *WebPDecBuffer)
22- xWebPInitDecoderConfigInternal func(config *WebPDecoderConfig, abiVersion int32) int32
23- xWebPValidateDecoderConfig func(config *WebPDecoderConfig) int32
24- xWebPDecode func(data *byte, dataSize uintptr, config *WebPDecoderConfig) VP8StatusCode
25- xWebPINewDecoder func(outputBuffer *WebPDecBuffer) uintptr
26- xWebPINewRGB func(csp int32, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) uintptr
27- xWebPINewYUVA func(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32, a *byte, aSize uintptr, aStride int32) uintptr
28- xWebPINewYUV func(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) uintptr
29- xWebPIDelete func(idec uintptr)
30- xWebPIAppend func(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode
31- xWebPIUpdate func(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode
32- xWebPIDecGetRGB func(idec uintptr, lastY *int32, width *int32, height *int32, stride *int32) *byte
33- xWebPIDecGetYUVA func(idec uintptr, lastY *int32, u **byte, v **byte, a **byte, width *int32, height *int32, stride *int32, uvStride *int32, aStride *int32) *byte
34- xWebPIDecodedArea func(idec uintptr, left *int32, top *int32, width *int32, height *int32) *WebPDecBuffer
35- xWebPIDecode func(data *byte, dataSize uintptr, config *WebPDecoderConfig) uintptr
36- xWebPEncodeRGBA func(rgba *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
37- xWebPEncodeRGB func(rgb *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
38- xWebPEncodeBGR func(bgr *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
39- xWebPEncodeBGRA func(bgra *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
40- xWebPEncodeLosslessRGBA func(rgba *byte, width int32, height int32, stride int32, output **byte) uintptr
41- xWebPEncodeLosslessRGB func(rgb *byte, width int32, height int32, stride int32, output **byte) uintptr
42- xWebPEncodeLosslessBGR func(bgr *byte, width int32, height int32, stride int32, output **byte) uintptr
43- xWebPEncodeLosslessBGRA func(bgra *byte, width int32, height int32, stride int32, output **byte) uintptr
44- xWebPConfigInitInternal func(config *WebPConfig, preset int32, quality float32, abiVersion int32) int32
45- xWebPConfigLosslessPreset func(config *WebPConfig, level int32) int32
46- xWebPValidateConfig func(config *WebPConfig) int32
47- xWebPMemoryWriterInit func(writer *WebPMemoryWriter)
48- xWebPMemoryWriterClear func(writer *WebPMemoryWriter)
49- xWebPMemoryWrite func(data *byte, dataSize uintptr, picture *WebPPicture) int32
50- xWebPPictureInitInternal func(picture *WebPPicture, abiVersion int32) int32
51- xWebPPictureAlloc func(picture *WebPPicture) int32
52- xWebPPictureFree func(picture *WebPPicture)
53- xWebPPictureCopy func(src *WebPPicture, dst *WebPPicture) int32
54- xWebPPictureCrop func(picture *WebPPicture, left int32, top int32, width int32, height int32) int32
55- xWebPPictureView func(src *WebPPicture, left int32, top int32, width int32, height int32, dst *WebPPicture) int32
56- xWebPPictureIsView func(picture *WebPPicture) int32
57- xWebPPictureRescale func(picture *WebPPicture, width int32, height int32) int32
58- xWebPPictureImportRGB func(picture *WebPPicture, rgb *byte, rgbStride int32) int32
59- xWebPPictureImportRGBA func(picture *WebPPicture, rgba *byte, rgbaStride int32) int32
60- xWebPPictureImportRGBX func(picture *WebPPicture, rgbx *byte, rgbxStride int32) int32
61- xWebPPictureImportBGR func(picture *WebPPicture, bgr *byte, bgrStride int32) int32
62- xWebPPictureImportBGRA func(picture *WebPPicture, bgra *byte, bgraStride int32) int32
63- xWebPPictureImportBGRX func(picture *WebPPicture, bgrx *byte, bgrxStride int32) int32
64- xWebPPictureARGBToYUVA func(picture *WebPPicture, colorspace int32) int32
65- xWebPPictureARGBToYUVADithered func(picture *WebPPicture, colorspace int32, dithering float32) int32
66- xWebPPictureSharpARGBToYUVA func(picture *WebPPicture) int32
67- xWebPPictureSmartARGBToYUVA func(picture *WebPPicture) int32
68- xWebPPictureYUVAToARGB func(picture *WebPPicture) int32
69- xWebPCleanupTransparentArea func(picture *WebPPicture)
70- xWebPPictureHasTransparency func(picture *WebPPicture) int32
71- xWebPBlendAlpha func(picture *WebPPicture, backgroundRGB uint32)
72- xWebPPlaneDistortion func(src *byte, srcStride uintptr, ref *byte, refStride uintptr, width int32, height int32, xStep uintptr, distType int32, distortion *float32, result *float32) int32
73- xWebPPictureDistortion func(src *WebPPicture, ref *WebPPicture, metricType int32, result *float32) int32
74- xWebPEncode func(config *WebPConfig, picture *WebPPicture) int32
75- xWebPFree func(ptr uintptr)
76- xWebPGetDecoderVersion func() int32
77- xWebPGetEncoderVersion func() int32
78-)
79-
80-func WebPGetInfo(data *byte, dataSize uintptr, width *int32, height *int32) int32 {
81- return xWebPGetInfo(data, dataSize, width, height)
82-}
83-func WebPDecodeRGBA(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
84- return xWebPDecodeRGBA(data, dataSize, width, height)
85-}
86-func WebPDecodeARGB(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
87- return xWebPDecodeARGB(data, dataSize, width, height)
88-}
89-func WebPDecodeBGRA(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
90- return xWebPDecodeBGRA(data, dataSize, width, height)
91-}
92-func WebPDecodeRGB(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
93- return xWebPDecodeRGB(data, dataSize, width, height)
94-}
95-func WebPDecodeBGR(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
96- return xWebPDecodeBGR(data, dataSize, width, height)
97-}
98-func WebPDecodeRGBAInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
99- return xWebPDecodeRGBAInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
100-}
101-func WebPDecodeARGBInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
102- return xWebPDecodeARGBInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
103-}
104-func WebPDecodeBGRAInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
105- return xWebPDecodeBGRAInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
106-}
107-func WebPDecodeRGBInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
108- return xWebPDecodeRGBInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
109-}
110-func WebPDecodeBGRInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
111- return xWebPDecodeBGRInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
112-}
113-func WebPDecodeYUV(data *byte, dataSize uintptr, width *int32, height *int32, u **byte, v **byte, stride *int32, uvStride *int32) *byte {
114- return xWebPDecodeYUV(data, dataSize, width, height, u, v, stride, uvStride)
115-}
116-func WebPDecodeYUVInto(data *byte, dataSize uintptr, luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) *byte {
117- return xWebPDecodeYUVInto(data, dataSize, luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride)
118-}
119-func WebPGetFeaturesInternal(data *byte, dataSize uintptr, features *WebPBitstreamFeatures, abiVersion int32) VP8StatusCode {
120- return xWebPGetFeaturesInternal(data, dataSize, features, abiVersion)
121-}
122-func WebPInitDecBufferInternal(buffer *WebPDecBuffer, abiVersion int32) int32 {
123- return xWebPInitDecBufferInternal(buffer, abiVersion)
124-}
125-func WebPFreeDecBuffer(buffer *WebPDecBuffer) {
126- xWebPFreeDecBuffer(buffer)
127-}
128-func WebPInitDecoderConfigInternal(config *WebPDecoderConfig, abiVersion int32) int32 {
129- return xWebPInitDecoderConfigInternal(config, abiVersion)
130-}
131-func WebPValidateDecoderConfig(config *WebPDecoderConfig) int32 {
132- return xWebPValidateDecoderConfig(config)
133-}
134-func WebPDecode(data *byte, dataSize uintptr, config *WebPDecoderConfig) VP8StatusCode {
135- return xWebPDecode(data, dataSize, config)
136-}
137-func WebPINewDecoder(outputBuffer *WebPDecBuffer) uintptr {
138- return xWebPINewDecoder(outputBuffer)
139-}
140-func WebPINewRGB(csp int32, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) uintptr {
141- return xWebPINewRGB(csp, outputBuffer, outputBufferSize, outputStride)
142-}
143-func WebPINewYUVA(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32, a *byte, aSize uintptr, aStride int32) uintptr {
144- return xWebPINewYUVA(luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride, a, aSize, aStride)
145-}
146-func WebPINewYUV(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) uintptr {
147- return xWebPINewYUV(luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride)
148-}
149-func WebPIDelete(idec uintptr) {
150- xWebPIDelete(idec)
151-}
152-func WebPIAppend(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode {
153- return xWebPIAppend(idec, data, dataSize)
154-}
155-func WebPIUpdate(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode {
156- return xWebPIUpdate(idec, data, dataSize)
157-}
158-func WebPIDecGetRGB(idec uintptr, lastY *int32, width *int32, height *int32, stride *int32) *byte {
159- return xWebPIDecGetRGB(idec, lastY, width, height, stride)
160-}
161-func WebPIDecGetYUVA(idec uintptr, lastY *int32, u **byte, v **byte, a **byte, width *int32, height *int32, stride *int32, uvStride *int32, aStride *int32) *byte {
162- return xWebPIDecGetYUVA(idec, lastY, u, v, a, width, height, stride, uvStride, aStride)
163-}
164-func WebPIDecodedArea(idec uintptr, left *int32, top *int32, width *int32, height *int32) *WebPDecBuffer {
165- return xWebPIDecodedArea(idec, left, top, width, height)
166-}
167-func WebPIDecode(data *byte, dataSize uintptr, config *WebPDecoderConfig) uintptr {
168- return xWebPIDecode(data, dataSize, config)
169-}
170-func WebPEncodeRGBA(rgba *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
171- return xWebPEncodeRGBA(rgba, width, height, stride, quality, output)
172-}
173-func WebPEncodeRGB(rgb *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
174- return xWebPEncodeRGB(rgb, width, height, stride, quality, output)
175-}
176-func WebPEncodeBGR(bgr *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
177- return xWebPEncodeBGR(bgr, width, height, stride, quality, output)
178-}
179-func WebPEncodeBGRA(bgra *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
180- return xWebPEncodeBGRA(bgra, width, height, stride, quality, output)
181-}
182-func WebPEncodeLosslessRGBA(rgba *byte, width int32, height int32, stride int32, output **byte) uintptr {
183- return xWebPEncodeLosslessRGBA(rgba, width, height, stride, output)
184-}
185-func WebPEncodeLosslessRGB(rgb *byte, width int32, height int32, stride int32, output **byte) uintptr {
186- return xWebPEncodeLosslessRGB(rgb, width, height, stride, output)
187-}
188-func WebPEncodeLosslessBGR(bgr *byte, width int32, height int32, stride int32, output **byte) uintptr {
189- return xWebPEncodeLosslessBGR(bgr, width, height, stride, output)
190-}
191-func WebPEncodeLosslessBGRA(bgra *byte, width int32, height int32, stride int32, output **byte) uintptr {
192- return xWebPEncodeLosslessBGRA(bgra, width, height, stride, output)
193-}
194-func WebPConfigInitInternal(config *WebPConfig, preset int32, quality float32, abiVersion int32) int32 {
195- return xWebPConfigInitInternal(config, preset, quality, abiVersion)
196-}
197-func WebPConfigLosslessPreset(config *WebPConfig, level int32) int32 {
198- return xWebPConfigLosslessPreset(config, level)
199-}
200-func WebPValidateConfig(config *WebPConfig) int32 {
201- return xWebPValidateConfig(config)
202-}
203-func WebPMemoryWriterInit(writer *WebPMemoryWriter) {
204- xWebPMemoryWriterInit(writer)
205-}
206-func WebPMemoryWriterClear(writer *WebPMemoryWriter) {
207- xWebPMemoryWriterClear(writer)
208-}
209-func WebPMemoryWrite(data *byte, dataSize uintptr, picture *WebPPicture) int32 {
210- return xWebPMemoryWrite(data, dataSize, picture)
211-}
212-func WebPPictureInitInternal(picture *WebPPicture, abiVersion int32) int32 {
213- return xWebPPictureInitInternal(picture, abiVersion)
214-}
215-func WebPPictureAlloc(picture *WebPPicture) int32 {
216- return xWebPPictureAlloc(picture)
217-}
218-func WebPPictureFree(picture *WebPPicture) {
219- xWebPPictureFree(picture)
220-}
221-func WebPPictureCopy(src *WebPPicture, dst *WebPPicture) int32 {
222- return xWebPPictureCopy(src, dst)
223-}
224-func WebPPictureCrop(picture *WebPPicture, left int32, top int32, width int32, height int32) int32 {
225- return xWebPPictureCrop(picture, left, top, width, height)
226-}
227-func WebPPictureView(src *WebPPicture, left int32, top int32, width int32, height int32, dst *WebPPicture) int32 {
228- return xWebPPictureView(src, left, top, width, height, dst)
229-}
230-func WebPPictureIsView(picture *WebPPicture) int32 {
231- return xWebPPictureIsView(picture)
232-}
233-func WebPPictureRescale(picture *WebPPicture, width int32, height int32) int32 {
234- return xWebPPictureRescale(picture, width, height)
235-}
236-func WebPPictureImportRGB(picture *WebPPicture, rgb *byte, rgbStride int32) int32 {
237- return xWebPPictureImportRGB(picture, rgb, rgbStride)
238-}
239-func WebPPictureImportRGBA(picture *WebPPicture, rgba *byte, rgbaStride int32) int32 {
240- return xWebPPictureImportRGBA(picture, rgba, rgbaStride)
241-}
242-func WebPPictureImportRGBX(picture *WebPPicture, rgbx *byte, rgbxStride int32) int32 {
243- return xWebPPictureImportRGBX(picture, rgbx, rgbxStride)
244-}
245-func WebPPictureImportBGR(picture *WebPPicture, bgr *byte, bgrStride int32) int32 {
246- return xWebPPictureImportBGR(picture, bgr, bgrStride)
247-}
248-func WebPPictureImportBGRA(picture *WebPPicture, bgra *byte, bgraStride int32) int32 {
249- return xWebPPictureImportBGRA(picture, bgra, bgraStride)
250-}
251-func WebPPictureImportBGRX(picture *WebPPicture, bgrx *byte, bgrxStride int32) int32 {
252- return xWebPPictureImportBGRX(picture, bgrx, bgrxStride)
253-}
254-func WebPPictureARGBToYUVA(picture *WebPPicture, colorspace int32) int32 {
255- return xWebPPictureARGBToYUVA(picture, colorspace)
256-}
257-func WebPPictureARGBToYUVADithered(picture *WebPPicture, colorspace int32, dithering float32) int32 {
258- return xWebPPictureARGBToYUVADithered(picture, colorspace, dithering)
259-}
260-func WebPPictureSharpARGBToYUVA(picture *WebPPicture) int32 {
261- return xWebPPictureSharpARGBToYUVA(picture)
262-}
263-func WebPPictureSmartARGBToYUVA(picture *WebPPicture) int32 {
264- return xWebPPictureSmartARGBToYUVA(picture)
265-}
266-func WebPPictureYUVAToARGB(picture *WebPPicture) int32 {
267- return xWebPPictureYUVAToARGB(picture)
268-}
269-func WebPCleanupTransparentArea(picture *WebPPicture) {
270- xWebPCleanupTransparentArea(picture)
271-}
272-func WebPPictureHasTransparency(picture *WebPPicture) int32 {
273- return xWebPPictureHasTransparency(picture)
274-}
275-func WebPBlendAlpha(picture *WebPPicture, backgroundRGB uint32) {
276- xWebPBlendAlpha(picture, backgroundRGB)
277-}
278-func WebPPlaneDistortion(src *byte, srcStride uintptr, ref *byte, refStride uintptr, width int32, height int32, xStep uintptr, distType int32, distortion *float32, result *float32) int32 {
279- return xWebPPlaneDistortion(src, srcStride, ref, refStride, width, height, xStep, distType, distortion, result)
280-}
281-func WebPPictureDistortion(src *WebPPicture, ref *WebPPicture, metricType int32, result *float32) int32 {
282- return xWebPPictureDistortion(src, ref, metricType, result)
283-}
284-func WebPEncode(config *WebPConfig, picture *WebPPicture) int32 {
285- return xWebPEncode(config, picture)
286-}
287-func WebPFree(ptr uintptr) {
288- xWebPFree(ptr)
289-}
290-func WebPGetDecoderVersion() int32 {
291- return xWebPGetDecoderVersion()
292-}
293-func WebPGetEncoderVersion() int32 {
294- return xWebPGetEncoderVersion()
295-}
296-func registerAll(lib uintptr) error {
297- if err := register(lib, &xWebPGetInfo, "WebPGetInfo"); err != nil {
298- return err
299- }
300- if err := register(lib, &xWebPDecodeRGBA, "WebPDecodeRGBA"); err != nil {
301- return err
302- }
303- if err := register(lib, &xWebPDecodeARGB, "WebPDecodeARGB"); err != nil {
304- return err
305- }
306- if err := register(lib, &xWebPDecodeBGRA, "WebPDecodeBGRA"); err != nil {
307- return err
308- }
309- if err := register(lib, &xWebPDecodeRGB, "WebPDecodeRGB"); err != nil {
310- return err
311- }
312- if err := register(lib, &xWebPDecodeBGR, "WebPDecodeBGR"); err != nil {
313- return err
314- }
315- if err := register(lib, &xWebPDecodeRGBAInto, "WebPDecodeRGBAInto"); err != nil {
316- return err
317- }
318- if err := register(lib, &xWebPDecodeARGBInto, "WebPDecodeARGBInto"); err != nil {
319- return err
320- }
321- if err := register(lib, &xWebPDecodeBGRAInto, "WebPDecodeBGRAInto"); err != nil {
322- return err
323- }
324- if err := register(lib, &xWebPDecodeRGBInto, "WebPDecodeRGBInto"); err != nil {
325- return err
326- }
327- if err := register(lib, &xWebPDecodeBGRInto, "WebPDecodeBGRInto"); err != nil {
328- return err
329- }
330- if err := register(lib, &xWebPDecodeYUV, "WebPDecodeYUV"); err != nil {
331- return err
332- }
333- if err := register(lib, &xWebPDecodeYUVInto, "WebPDecodeYUVInto"); err != nil {
334- return err
335- }
336- if err := register(lib, &xWebPGetFeaturesInternal, "WebPGetFeaturesInternal"); err != nil {
337- return err
338- }
339- if err := register(lib, &xWebPInitDecBufferInternal, "WebPInitDecBufferInternal"); err != nil {
340- return err
341- }
342- if err := register(lib, &xWebPFreeDecBuffer, "WebPFreeDecBuffer"); err != nil {
343- return err
344- }
345- if err := register(lib, &xWebPInitDecoderConfigInternal, "WebPInitDecoderConfigInternal"); err != nil {
346- return err
347- }
348- registerOptional(lib, &xWebPValidateDecoderConfig, "WebPValidateDecoderConfig")
349- if err := register(lib, &xWebPDecode, "WebPDecode"); err != nil {
350- return err
351- }
352- if err := register(lib, &xWebPINewDecoder, "WebPINewDecoder"); err != nil {
353- return err
354- }
355- if err := register(lib, &xWebPINewRGB, "WebPINewRGB"); err != nil {
356- return err
357- }
358- if err := register(lib, &xWebPINewYUVA, "WebPINewYUVA"); err != nil {
359- return err
360- }
361- if err := register(lib, &xWebPINewYUV, "WebPINewYUV"); err != nil {
362- return err
363- }
364- if err := register(lib, &xWebPIDelete, "WebPIDelete"); err != nil {
365- return err
366- }
367- if err := register(lib, &xWebPIAppend, "WebPIAppend"); err != nil {
368- return err
369- }
370- if err := register(lib, &xWebPIUpdate, "WebPIUpdate"); err != nil {
371- return err
372- }
373- if err := register(lib, &xWebPIDecGetRGB, "WebPIDecGetRGB"); err != nil {
374- return err
375- }
376- if err := register(lib, &xWebPIDecGetYUVA, "WebPIDecGetYUVA"); err != nil {
377- return err
378- }
379- if err := register(lib, &xWebPIDecodedArea, "WebPIDecodedArea"); err != nil {
380- return err
381- }
382- if err := register(lib, &xWebPIDecode, "WebPIDecode"); err != nil {
383- return err
384- }
385- if err := register(lib, &xWebPEncodeRGBA, "WebPEncodeRGBA"); err != nil {
386- return err
387- }
388- if err := register(lib, &xWebPEncodeRGB, "WebPEncodeRGB"); err != nil {
389- return err
390- }
391- if err := register(lib, &xWebPEncodeBGR, "WebPEncodeBGR"); err != nil {
392- return err
393- }
394- if err := register(lib, &xWebPEncodeBGRA, "WebPEncodeBGRA"); err != nil {
395- return err
396- }
397- if err := register(lib, &xWebPEncodeLosslessRGBA, "WebPEncodeLosslessRGBA"); err != nil {
398- return err
399- }
400- if err := register(lib, &xWebPEncodeLosslessRGB, "WebPEncodeLosslessRGB"); err != nil {
401- return err
402- }
403- if err := register(lib, &xWebPEncodeLosslessBGR, "WebPEncodeLosslessBGR"); err != nil {
404- return err
405- }
406- if err := register(lib, &xWebPEncodeLosslessBGRA, "WebPEncodeLosslessBGRA"); err != nil {
407- return err
408- }
409- if err := register(lib, &xWebPConfigInitInternal, "WebPConfigInitInternal"); err != nil {
410- return err
411- }
412- if err := register(lib, &xWebPConfigLosslessPreset, "WebPConfigLosslessPreset"); err != nil {
413- return err
414- }
415- if err := register(lib, &xWebPValidateConfig, "WebPValidateConfig"); err != nil {
416- return err
417- }
418- if err := register(lib, &xWebPMemoryWriterInit, "WebPMemoryWriterInit"); err != nil {
419- return err
420- }
421- if err := register(lib, &xWebPMemoryWriterClear, "WebPMemoryWriterClear"); err != nil {
422- return err
423- }
424- if err := register(lib, &xWebPMemoryWrite, "WebPMemoryWrite"); err != nil {
425- return err
426- }
427- if err := register(lib, &xWebPPictureInitInternal, "WebPPictureInitInternal"); err != nil {
428- return err
429- }
430- if err := register(lib, &xWebPPictureAlloc, "WebPPictureAlloc"); err != nil {
431- return err
432- }
433- if err := register(lib, &xWebPPictureFree, "WebPPictureFree"); err != nil {
434- return err
435- }
436- if err := register(lib, &xWebPPictureCopy, "WebPPictureCopy"); err != nil {
437- return err
438- }
439- if err := register(lib, &xWebPPictureCrop, "WebPPictureCrop"); err != nil {
440- return err
441- }
442- if err := register(lib, &xWebPPictureView, "WebPPictureView"); err != nil {
443- return err
444- }
445- if err := register(lib, &xWebPPictureIsView, "WebPPictureIsView"); err != nil {
446- return err
447- }
448- if err := register(lib, &xWebPPictureRescale, "WebPPictureRescale"); err != nil {
449- return err
450- }
451- if err := register(lib, &xWebPPictureImportRGB, "WebPPictureImportRGB"); err != nil {
452- return err
453- }
454- if err := register(lib, &xWebPPictureImportRGBA, "WebPPictureImportRGBA"); err != nil {
455- return err
456- }
457- if err := register(lib, &xWebPPictureImportRGBX, "WebPPictureImportRGBX"); err != nil {
458- return err
459- }
460- if err := register(lib, &xWebPPictureImportBGR, "WebPPictureImportBGR"); err != nil {
461- return err
462- }
463- if err := register(lib, &xWebPPictureImportBGRA, "WebPPictureImportBGRA"); err != nil {
464- return err
465- }
466- if err := register(lib, &xWebPPictureImportBGRX, "WebPPictureImportBGRX"); err != nil {
467- return err
468- }
469- if err := register(lib, &xWebPPictureARGBToYUVA, "WebPPictureARGBToYUVA"); err != nil {
470- return err
471- }
472- if err := register(lib, &xWebPPictureARGBToYUVADithered, "WebPPictureARGBToYUVADithered"); err != nil {
473- return err
474- }
475- if err := register(lib, &xWebPPictureSharpARGBToYUVA, "WebPPictureSharpARGBToYUVA"); err != nil {
476- return err
477- }
478- if err := register(lib, &xWebPPictureSmartARGBToYUVA, "WebPPictureSmartARGBToYUVA"); err != nil {
479- return err
480- }
481- if err := register(lib, &xWebPPictureYUVAToARGB, "WebPPictureYUVAToARGB"); err != nil {
482- return err
483- }
484- if err := register(lib, &xWebPCleanupTransparentArea, "WebPCleanupTransparentArea"); err != nil {
485- return err
486- }
487- if err := register(lib, &xWebPPictureHasTransparency, "WebPPictureHasTransparency"); err != nil {
488- return err
489- }
490- if err := register(lib, &xWebPBlendAlpha, "WebPBlendAlpha"); err != nil {
491- return err
492- }
493- if err := register(lib, &xWebPPlaneDistortion, "WebPPlaneDistortion"); err != nil {
494- return err
495- }
496- if err := register(lib, &xWebPPictureDistortion, "WebPPictureDistortion"); err != nil {
497- return err
498- }
499- if err := register(lib, &xWebPEncode, "WebPEncode"); err != nil {
500- return err
501- }
502- if err := register(lib, &xWebPFree, "WebPFree"); err != nil {
503- return err
504- }
505- if err := register(lib, &xWebPGetDecoderVersion, "WebPGetDecoderVersion"); err != nil {
506- return err
507- }
508- if err := register(lib, &xWebPGetEncoderVersion, "WebPGetEncoderVersion"); err != nil {
509- return err
510- }
511-
512- return nil
513-}
@@ -1,513 +0,0 @@
1-// Code generated by ./cmd/gen; DO NOT EDIT.
2-
3-package libwebp
4-
5-var (
6- xWebPGetInfo func(data *byte, dataSize uintptr, width *int32, height *int32) int32
7- xWebPDecodeRGBA func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
8- xWebPDecodeARGB func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
9- xWebPDecodeBGRA func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
10- xWebPDecodeRGB func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
11- xWebPDecodeBGR func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
12- xWebPDecodeRGBAInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
13- xWebPDecodeARGBInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
14- xWebPDecodeBGRAInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
15- xWebPDecodeRGBInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
16- xWebPDecodeBGRInto func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
17- xWebPDecodeYUV func(data *byte, dataSize uintptr, width *int32, height *int32, u **byte, v **byte, stride *int32, uvStride *int32) *byte
18- xWebPDecodeYUVInto func(data *byte, dataSize uintptr, luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) *byte
19- xWebPGetFeaturesInternal func(data *byte, dataSize uintptr, features *WebPBitstreamFeatures, abiVersion int32) VP8StatusCode
20- xWebPInitDecBufferInternal func(buffer *WebPDecBuffer, abiVersion int32) int32
21- xWebPFreeDecBuffer func(buffer *WebPDecBuffer)
22- xWebPInitDecoderConfigInternal func(config *WebPDecoderConfig, abiVersion int32) int32
23- xWebPValidateDecoderConfig func(config *WebPDecoderConfig) int32
24- xWebPDecode func(data *byte, dataSize uintptr, config *WebPDecoderConfig) VP8StatusCode
25- xWebPINewDecoder func(outputBuffer *WebPDecBuffer) uintptr
26- xWebPINewRGB func(csp int32, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) uintptr
27- xWebPINewYUVA func(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32, a *byte, aSize uintptr, aStride int32) uintptr
28- xWebPINewYUV func(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) uintptr
29- xWebPIDelete func(idec uintptr)
30- xWebPIAppend func(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode
31- xWebPIUpdate func(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode
32- xWebPIDecGetRGB func(idec uintptr, lastY *int32, width *int32, height *int32, stride *int32) *byte
33- xWebPIDecGetYUVA func(idec uintptr, lastY *int32, u **byte, v **byte, a **byte, width *int32, height *int32, stride *int32, uvStride *int32, aStride *int32) *byte
34- xWebPIDecodedArea func(idec uintptr, left *int32, top *int32, width *int32, height *int32) *WebPDecBuffer
35- xWebPIDecode func(data *byte, dataSize uintptr, config *WebPDecoderConfig) uintptr
36- xWebPEncodeRGBA func(rgba *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
37- xWebPEncodeRGB func(rgb *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
38- xWebPEncodeBGR func(bgr *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
39- xWebPEncodeBGRA func(bgra *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
40- xWebPEncodeLosslessRGBA func(rgba *byte, width int32, height int32, stride int32, output **byte) uintptr
41- xWebPEncodeLosslessRGB func(rgb *byte, width int32, height int32, stride int32, output **byte) uintptr
42- xWebPEncodeLosslessBGR func(bgr *byte, width int32, height int32, stride int32, output **byte) uintptr
43- xWebPEncodeLosslessBGRA func(bgra *byte, width int32, height int32, stride int32, output **byte) uintptr
44- xWebPConfigInitInternal func(config *WebPConfig, preset int32, quality float32, abiVersion int32) int32
45- xWebPConfigLosslessPreset func(config *WebPConfig, level int32) int32
46- xWebPValidateConfig func(config *WebPConfig) int32
47- xWebPMemoryWriterInit func(writer *WebPMemoryWriter)
48- xWebPMemoryWriterClear func(writer *WebPMemoryWriter)
49- xWebPMemoryWrite func(data *byte, dataSize uintptr, picture *WebPPicture) int32
50- xWebPPictureInitInternal func(picture *WebPPicture, abiVersion int32) int32
51- xWebPPictureAlloc func(picture *WebPPicture) int32
52- xWebPPictureFree func(picture *WebPPicture)
53- xWebPPictureCopy func(src *WebPPicture, dst *WebPPicture) int32
54- xWebPPictureCrop func(picture *WebPPicture, left int32, top int32, width int32, height int32) int32
55- xWebPPictureView func(src *WebPPicture, left int32, top int32, width int32, height int32, dst *WebPPicture) int32
56- xWebPPictureIsView func(picture *WebPPicture) int32
57- xWebPPictureRescale func(picture *WebPPicture, width int32, height int32) int32
58- xWebPPictureImportRGB func(picture *WebPPicture, rgb *byte, rgbStride int32) int32
59- xWebPPictureImportRGBA func(picture *WebPPicture, rgba *byte, rgbaStride int32) int32
60- xWebPPictureImportRGBX func(picture *WebPPicture, rgbx *byte, rgbxStride int32) int32
61- xWebPPictureImportBGR func(picture *WebPPicture, bgr *byte, bgrStride int32) int32
62- xWebPPictureImportBGRA func(picture *WebPPicture, bgra *byte, bgraStride int32) int32
63- xWebPPictureImportBGRX func(picture *WebPPicture, bgrx *byte, bgrxStride int32) int32
64- xWebPPictureARGBToYUVA func(picture *WebPPicture, colorspace int32) int32
65- xWebPPictureARGBToYUVADithered func(picture *WebPPicture, colorspace int32, dithering float32) int32
66- xWebPPictureSharpARGBToYUVA func(picture *WebPPicture) int32
67- xWebPPictureSmartARGBToYUVA func(picture *WebPPicture) int32
68- xWebPPictureYUVAToARGB func(picture *WebPPicture) int32
69- xWebPCleanupTransparentArea func(picture *WebPPicture)
70- xWebPPictureHasTransparency func(picture *WebPPicture) int32
71- xWebPBlendAlpha func(picture *WebPPicture, backgroundRGB uint32)
72- xWebPPlaneDistortion func(src *byte, srcStride uintptr, ref *byte, refStride uintptr, width int32, height int32, xStep uintptr, distType int32, distortion *float32, result *float32) int32
73- xWebPPictureDistortion func(src *WebPPicture, ref *WebPPicture, metricType int32, result *float32) int32
74- xWebPEncode func(config *WebPConfig, picture *WebPPicture) int32
75- xWebPFree func(ptr uintptr)
76- xWebPGetDecoderVersion func() int32
77- xWebPGetEncoderVersion func() int32
78-)
79-
80-func WebPGetInfo(data *byte, dataSize uintptr, width *int32, height *int32) int32 {
81- return xWebPGetInfo(data, dataSize, width, height)
82-}
83-func WebPDecodeRGBA(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
84- return xWebPDecodeRGBA(data, dataSize, width, height)
85-}
86-func WebPDecodeARGB(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
87- return xWebPDecodeARGB(data, dataSize, width, height)
88-}
89-func WebPDecodeBGRA(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
90- return xWebPDecodeBGRA(data, dataSize, width, height)
91-}
92-func WebPDecodeRGB(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
93- return xWebPDecodeRGB(data, dataSize, width, height)
94-}
95-func WebPDecodeBGR(data *byte, dataSize uintptr, width *int32, height *int32) *byte {
96- return xWebPDecodeBGR(data, dataSize, width, height)
97-}
98-func WebPDecodeRGBAInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
99- return xWebPDecodeRGBAInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
100-}
101-func WebPDecodeARGBInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
102- return xWebPDecodeARGBInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
103-}
104-func WebPDecodeBGRAInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
105- return xWebPDecodeBGRAInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
106-}
107-func WebPDecodeRGBInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
108- return xWebPDecodeRGBInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
109-}
110-func WebPDecodeBGRInto(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte {
111- return xWebPDecodeBGRInto(data, dataSize, outputBuffer, outputBufferSize, outputStride)
112-}
113-func WebPDecodeYUV(data *byte, dataSize uintptr, width *int32, height *int32, u **byte, v **byte, stride *int32, uvStride *int32) *byte {
114- return xWebPDecodeYUV(data, dataSize, width, height, u, v, stride, uvStride)
115-}
116-func WebPDecodeYUVInto(data *byte, dataSize uintptr, luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) *byte {
117- return xWebPDecodeYUVInto(data, dataSize, luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride)
118-}
119-func WebPGetFeaturesInternal(data *byte, dataSize uintptr, features *WebPBitstreamFeatures, abiVersion int32) VP8StatusCode {
120- return xWebPGetFeaturesInternal(data, dataSize, features, abiVersion)
121-}
122-func WebPInitDecBufferInternal(buffer *WebPDecBuffer, abiVersion int32) int32 {
123- return xWebPInitDecBufferInternal(buffer, abiVersion)
124-}
125-func WebPFreeDecBuffer(buffer *WebPDecBuffer) {
126- xWebPFreeDecBuffer(buffer)
127-}
128-func WebPInitDecoderConfigInternal(config *WebPDecoderConfig, abiVersion int32) int32 {
129- return xWebPInitDecoderConfigInternal(config, abiVersion)
130-}
131-func WebPValidateDecoderConfig(config *WebPDecoderConfig) int32 {
132- return xWebPValidateDecoderConfig(config)
133-}
134-func WebPDecode(data *byte, dataSize uintptr, config *WebPDecoderConfig) VP8StatusCode {
135- return xWebPDecode(data, dataSize, config)
136-}
137-func WebPINewDecoder(outputBuffer *WebPDecBuffer) uintptr {
138- return xWebPINewDecoder(outputBuffer)
139-}
140-func WebPINewRGB(csp int32, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) uintptr {
141- return xWebPINewRGB(csp, outputBuffer, outputBufferSize, outputStride)
142-}
143-func WebPINewYUVA(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32, a *byte, aSize uintptr, aStride int32) uintptr {
144- return xWebPINewYUVA(luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride, a, aSize, aStride)
145-}
146-func WebPINewYUV(luma *byte, lumaSize uintptr, lumaStride int32, u *byte, uSize uintptr, uStride int32, v *byte, vSize uintptr, vStride int32) uintptr {
147- return xWebPINewYUV(luma, lumaSize, lumaStride, u, uSize, uStride, v, vSize, vStride)
148-}
149-func WebPIDelete(idec uintptr) {
150- xWebPIDelete(idec)
151-}
152-func WebPIAppend(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode {
153- return xWebPIAppend(idec, data, dataSize)
154-}
155-func WebPIUpdate(idec uintptr, data *byte, dataSize uintptr) VP8StatusCode {
156- return xWebPIUpdate(idec, data, dataSize)
157-}
158-func WebPIDecGetRGB(idec uintptr, lastY *int32, width *int32, height *int32, stride *int32) *byte {
159- return xWebPIDecGetRGB(idec, lastY, width, height, stride)
160-}
161-func WebPIDecGetYUVA(idec uintptr, lastY *int32, u **byte, v **byte, a **byte, width *int32, height *int32, stride *int32, uvStride *int32, aStride *int32) *byte {
162- return xWebPIDecGetYUVA(idec, lastY, u, v, a, width, height, stride, uvStride, aStride)
163-}
164-func WebPIDecodedArea(idec uintptr, left *int32, top *int32, width *int32, height *int32) *WebPDecBuffer {
165- return xWebPIDecodedArea(idec, left, top, width, height)
166-}
167-func WebPIDecode(data *byte, dataSize uintptr, config *WebPDecoderConfig) uintptr {
168- return xWebPIDecode(data, dataSize, config)
169-}
170-func WebPEncodeRGBA(rgba *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
171- return xWebPEncodeRGBA(rgba, width, height, stride, quality, output)
172-}
173-func WebPEncodeRGB(rgb *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
174- return xWebPEncodeRGB(rgb, width, height, stride, quality, output)
175-}
176-func WebPEncodeBGR(bgr *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
177- return xWebPEncodeBGR(bgr, width, height, stride, quality, output)
178-}
179-func WebPEncodeBGRA(bgra *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr {
180- return xWebPEncodeBGRA(bgra, width, height, stride, quality, output)
181-}
182-func WebPEncodeLosslessRGBA(rgba *byte, width int32, height int32, stride int32, output **byte) uintptr {
183- return xWebPEncodeLosslessRGBA(rgba, width, height, stride, output)
184-}
185-func WebPEncodeLosslessRGB(rgb *byte, width int32, height int32, stride int32, output **byte) uintptr {
186- return xWebPEncodeLosslessRGB(rgb, width, height, stride, output)
187-}
188-func WebPEncodeLosslessBGR(bgr *byte, width int32, height int32, stride int32, output **byte) uintptr {
189- return xWebPEncodeLosslessBGR(bgr, width, height, stride, output)
190-}
191-func WebPEncodeLosslessBGRA(bgra *byte, width int32, height int32, stride int32, output **byte) uintptr {
192- return xWebPEncodeLosslessBGRA(bgra, width, height, stride, output)
193-}
194-func WebPConfigInitInternal(config *WebPConfig, preset int32, quality float32, abiVersion int32) int32 {
195- return xWebPConfigInitInternal(config, preset, quality, abiVersion)
196-}
197-func WebPConfigLosslessPreset(config *WebPConfig, level int32) int32 {
198- return xWebPConfigLosslessPreset(config, level)
199-}
200-func WebPValidateConfig(config *WebPConfig) int32 {
201- return xWebPValidateConfig(config)
202-}
203-func WebPMemoryWriterInit(writer *WebPMemoryWriter) {
204- xWebPMemoryWriterInit(writer)
205-}
206-func WebPMemoryWriterClear(writer *WebPMemoryWriter) {
207- xWebPMemoryWriterClear(writer)
208-}
209-func WebPMemoryWrite(data *byte, dataSize uintptr, picture *WebPPicture) int32 {
210- return xWebPMemoryWrite(data, dataSize, picture)
211-}
212-func WebPPictureInitInternal(picture *WebPPicture, abiVersion int32) int32 {
213- return xWebPPictureInitInternal(picture, abiVersion)
214-}
215-func WebPPictureAlloc(picture *WebPPicture) int32 {
216- return xWebPPictureAlloc(picture)
217-}
218-func WebPPictureFree(picture *WebPPicture) {
219- xWebPPictureFree(picture)
220-}
221-func WebPPictureCopy(src *WebPPicture, dst *WebPPicture) int32 {
222- return xWebPPictureCopy(src, dst)
223-}
224-func WebPPictureCrop(picture *WebPPicture, left int32, top int32, width int32, height int32) int32 {
225- return xWebPPictureCrop(picture, left, top, width, height)
226-}
227-func WebPPictureView(src *WebPPicture, left int32, top int32, width int32, height int32, dst *WebPPicture) int32 {
228- return xWebPPictureView(src, left, top, width, height, dst)
229-}
230-func WebPPictureIsView(picture *WebPPicture) int32 {
231- return xWebPPictureIsView(picture)
232-}
233-func WebPPictureRescale(picture *WebPPicture, width int32, height int32) int32 {
234- return xWebPPictureRescale(picture, width, height)
235-}
236-func WebPPictureImportRGB(picture *WebPPicture, rgb *byte, rgbStride int32) int32 {
237- return xWebPPictureImportRGB(picture, rgb, rgbStride)
238-}
239-func WebPPictureImportRGBA(picture *WebPPicture, rgba *byte, rgbaStride int32) int32 {
240- return xWebPPictureImportRGBA(picture, rgba, rgbaStride)
241-}
242-func WebPPictureImportRGBX(picture *WebPPicture, rgbx *byte, rgbxStride int32) int32 {
243- return xWebPPictureImportRGBX(picture, rgbx, rgbxStride)
244-}
245-func WebPPictureImportBGR(picture *WebPPicture, bgr *byte, bgrStride int32) int32 {
246- return xWebPPictureImportBGR(picture, bgr, bgrStride)
247-}
248-func WebPPictureImportBGRA(picture *WebPPicture, bgra *byte, bgraStride int32) int32 {
249- return xWebPPictureImportBGRA(picture, bgra, bgraStride)
250-}
251-func WebPPictureImportBGRX(picture *WebPPicture, bgrx *byte, bgrxStride int32) int32 {
252- return xWebPPictureImportBGRX(picture, bgrx, bgrxStride)
253-}
254-func WebPPictureARGBToYUVA(picture *WebPPicture, colorspace int32) int32 {
255- return xWebPPictureARGBToYUVA(picture, colorspace)
256-}
257-func WebPPictureARGBToYUVADithered(picture *WebPPicture, colorspace int32, dithering float32) int32 {
258- return xWebPPictureARGBToYUVADithered(picture, colorspace, dithering)
259-}
260-func WebPPictureSharpARGBToYUVA(picture *WebPPicture) int32 {
261- return xWebPPictureSharpARGBToYUVA(picture)
262-}
263-func WebPPictureSmartARGBToYUVA(picture *WebPPicture) int32 {
264- return xWebPPictureSmartARGBToYUVA(picture)
265-}
266-func WebPPictureYUVAToARGB(picture *WebPPicture) int32 {
267- return xWebPPictureYUVAToARGB(picture)
268-}
269-func WebPCleanupTransparentArea(picture *WebPPicture) {
270- xWebPCleanupTransparentArea(picture)
271-}
272-func WebPPictureHasTransparency(picture *WebPPicture) int32 {
273- return xWebPPictureHasTransparency(picture)
274-}
275-func WebPBlendAlpha(picture *WebPPicture, backgroundRGB uint32) {
276- xWebPBlendAlpha(picture, backgroundRGB)
277-}
278-func WebPPlaneDistortion(src *byte, srcStride uintptr, ref *byte, refStride uintptr, width int32, height int32, xStep uintptr, distType int32, distortion *float32, result *float32) int32 {
279- return xWebPPlaneDistortion(src, srcStride, ref, refStride, width, height, xStep, distType, distortion, result)
280-}
281-func WebPPictureDistortion(src *WebPPicture, ref *WebPPicture, metricType int32, result *float32) int32 {
282- return xWebPPictureDistortion(src, ref, metricType, result)
283-}
284-func WebPEncode(config *WebPConfig, picture *WebPPicture) int32 {
285- return xWebPEncode(config, picture)
286-}
287-func WebPFree(ptr uintptr) {
288- xWebPFree(ptr)
289-}
290-func WebPGetDecoderVersion() int32 {
291- return xWebPGetDecoderVersion()
292-}
293-func WebPGetEncoderVersion() int32 {
294- return xWebPGetEncoderVersion()
295-}
296-func registerAll(lib uintptr) error {
297- if err := register(lib, &xWebPGetInfo, "WebPGetInfo"); err != nil {
298- return err
299- }
300- if err := register(lib, &xWebPDecodeRGBA, "WebPDecodeRGBA"); err != nil {
301- return err
302- }
303- if err := register(lib, &xWebPDecodeARGB, "WebPDecodeARGB"); err != nil {
304- return err
305- }
306- if err := register(lib, &xWebPDecodeBGRA, "WebPDecodeBGRA"); err != nil {
307- return err
308- }
309- if err := register(lib, &xWebPDecodeRGB, "WebPDecodeRGB"); err != nil {
310- return err
311- }
312- if err := register(lib, &xWebPDecodeBGR, "WebPDecodeBGR"); err != nil {
313- return err
314- }
315- if err := register(lib, &xWebPDecodeRGBAInto, "WebPDecodeRGBAInto"); err != nil {
316- return err
317- }
318- if err := register(lib, &xWebPDecodeARGBInto, "WebPDecodeARGBInto"); err != nil {
319- return err
320- }
321- if err := register(lib, &xWebPDecodeBGRAInto, "WebPDecodeBGRAInto"); err != nil {
322- return err
323- }
324- if err := register(lib, &xWebPDecodeRGBInto, "WebPDecodeRGBInto"); err != nil {
325- return err
326- }
327- if err := register(lib, &xWebPDecodeBGRInto, "WebPDecodeBGRInto"); err != nil {
328- return err
329- }
330- if err := register(lib, &xWebPDecodeYUV, "WebPDecodeYUV"); err != nil {
331- return err
332- }
333- if err := register(lib, &xWebPDecodeYUVInto, "WebPDecodeYUVInto"); err != nil {
334- return err
335- }
336- if err := register(lib, &xWebPGetFeaturesInternal, "WebPGetFeaturesInternal"); err != nil {
337- return err
338- }
339- if err := register(lib, &xWebPInitDecBufferInternal, "WebPInitDecBufferInternal"); err != nil {
340- return err
341- }
342- if err := register(lib, &xWebPFreeDecBuffer, "WebPFreeDecBuffer"); err != nil {
343- return err
344- }
345- if err := register(lib, &xWebPInitDecoderConfigInternal, "WebPInitDecoderConfigInternal"); err != nil {
346- return err
347- }
348- registerOptional(lib, &xWebPValidateDecoderConfig, "WebPValidateDecoderConfig")
349- if err := register(lib, &xWebPDecode, "WebPDecode"); err != nil {
350- return err
351- }
352- if err := register(lib, &xWebPINewDecoder, "WebPINewDecoder"); err != nil {
353- return err
354- }
355- if err := register(lib, &xWebPINewRGB, "WebPINewRGB"); err != nil {
356- return err
357- }
358- if err := register(lib, &xWebPINewYUVA, "WebPINewYUVA"); err != nil {
359- return err
360- }
361- if err := register(lib, &xWebPINewYUV, "WebPINewYUV"); err != nil {
362- return err
363- }
364- if err := register(lib, &xWebPIDelete, "WebPIDelete"); err != nil {
365- return err
366- }
367- if err := register(lib, &xWebPIAppend, "WebPIAppend"); err != nil {
368- return err
369- }
370- if err := register(lib, &xWebPIUpdate, "WebPIUpdate"); err != nil {
371- return err
372- }
373- if err := register(lib, &xWebPIDecGetRGB, "WebPIDecGetRGB"); err != nil {
374- return err
375- }
376- if err := register(lib, &xWebPIDecGetYUVA, "WebPIDecGetYUVA"); err != nil {
377- return err
378- }
379- if err := register(lib, &xWebPIDecodedArea, "WebPIDecodedArea"); err != nil {
380- return err
381- }
382- if err := register(lib, &xWebPIDecode, "WebPIDecode"); err != nil {
383- return err
384- }
385- if err := register(lib, &xWebPEncodeRGBA, "WebPEncodeRGBA"); err != nil {
386- return err
387- }
388- if err := register(lib, &xWebPEncodeRGB, "WebPEncodeRGB"); err != nil {
389- return err
390- }
391- if err := register(lib, &xWebPEncodeBGR, "WebPEncodeBGR"); err != nil {
392- return err
393- }
394- if err := register(lib, &xWebPEncodeBGRA, "WebPEncodeBGRA"); err != nil {
395- return err
396- }
397- if err := register(lib, &xWebPEncodeLosslessRGBA, "WebPEncodeLosslessRGBA"); err != nil {
398- return err
399- }
400- if err := register(lib, &xWebPEncodeLosslessRGB, "WebPEncodeLosslessRGB"); err != nil {
401- return err
402- }
403- if err := register(lib, &xWebPEncodeLosslessBGR, "WebPEncodeLosslessBGR"); err != nil {
404- return err
405- }
406- if err := register(lib, &xWebPEncodeLosslessBGRA, "WebPEncodeLosslessBGRA"); err != nil {
407- return err
408- }
409- if err := register(lib, &xWebPConfigInitInternal, "WebPConfigInitInternal"); err != nil {
410- return err
411- }
412- if err := register(lib, &xWebPConfigLosslessPreset, "WebPConfigLosslessPreset"); err != nil {
413- return err
414- }
415- if err := register(lib, &xWebPValidateConfig, "WebPValidateConfig"); err != nil {
416- return err
417- }
418- if err := register(lib, &xWebPMemoryWriterInit, "WebPMemoryWriterInit"); err != nil {
419- return err
420- }
421- if err := register(lib, &xWebPMemoryWriterClear, "WebPMemoryWriterClear"); err != nil {
422- return err
423- }
424- if err := register(lib, &xWebPMemoryWrite, "WebPMemoryWrite"); err != nil {
425- return err
426- }
427- if err := register(lib, &xWebPPictureInitInternal, "WebPPictureInitInternal"); err != nil {
428- return err
429- }
430- if err := register(lib, &xWebPPictureAlloc, "WebPPictureAlloc"); err != nil {
431- return err
432- }
433- if err := register(lib, &xWebPPictureFree, "WebPPictureFree"); err != nil {
434- return err
435- }
436- if err := register(lib, &xWebPPictureCopy, "WebPPictureCopy"); err != nil {
437- return err
438- }
439- if err := register(lib, &xWebPPictureCrop, "WebPPictureCrop"); err != nil {
440- return err
441- }
442- if err := register(lib, &xWebPPictureView, "WebPPictureView"); err != nil {
443- return err
444- }
445- if err := register(lib, &xWebPPictureIsView, "WebPPictureIsView"); err != nil {
446- return err
447- }
448- if err := register(lib, &xWebPPictureRescale, "WebPPictureRescale"); err != nil {
449- return err
450- }
451- if err := register(lib, &xWebPPictureImportRGB, "WebPPictureImportRGB"); err != nil {
452- return err
453- }
454- if err := register(lib, &xWebPPictureImportRGBA, "WebPPictureImportRGBA"); err != nil {
455- return err
456- }
457- if err := register(lib, &xWebPPictureImportRGBX, "WebPPictureImportRGBX"); err != nil {
458- return err
459- }
460- if err := register(lib, &xWebPPictureImportBGR, "WebPPictureImportBGR"); err != nil {
461- return err
462- }
463- if err := register(lib, &xWebPPictureImportBGRA, "WebPPictureImportBGRA"); err != nil {
464- return err
465- }
466- if err := register(lib, &xWebPPictureImportBGRX, "WebPPictureImportBGRX"); err != nil {
467- return err
468- }
469- if err := register(lib, &xWebPPictureARGBToYUVA, "WebPPictureARGBToYUVA"); err != nil {
470- return err
471- }
472- if err := register(lib, &xWebPPictureARGBToYUVADithered, "WebPPictureARGBToYUVADithered"); err != nil {
473- return err
474- }
475- if err := register(lib, &xWebPPictureSharpARGBToYUVA, "WebPPictureSharpARGBToYUVA"); err != nil {
476- return err
477- }
478- if err := register(lib, &xWebPPictureSmartARGBToYUVA, "WebPPictureSmartARGBToYUVA"); err != nil {
479- return err
480- }
481- if err := register(lib, &xWebPPictureYUVAToARGB, "WebPPictureYUVAToARGB"); err != nil {
482- return err
483- }
484- if err := register(lib, &xWebPCleanupTransparentArea, "WebPCleanupTransparentArea"); err != nil {
485- return err
486- }
487- if err := register(lib, &xWebPPictureHasTransparency, "WebPPictureHasTransparency"); err != nil {
488- return err
489- }
490- if err := register(lib, &xWebPBlendAlpha, "WebPBlendAlpha"); err != nil {
491- return err
492- }
493- if err := register(lib, &xWebPPlaneDistortion, "WebPPlaneDistortion"); err != nil {
494- return err
495- }
496- if err := register(lib, &xWebPPictureDistortion, "WebPPictureDistortion"); err != nil {
497- return err
498- }
499- if err := register(lib, &xWebPEncode, "WebPEncode"); err != nil {
500- return err
501- }
502- if err := register(lib, &xWebPFree, "WebPFree"); err != nil {
503- return err
504- }
505- if err := register(lib, &xWebPGetDecoderVersion, "WebPGetDecoderVersion"); err != nil {
506- return err
507- }
508- if err := register(lib, &xWebPGetEncoderVersion, "WebPGetEncoderVersion"); err != nil {
509- return err
510- }
511-
512- return nil
513-}
D third_party/purego-webp/internal/libwebp/loader.go +0 -86
@@ -1,86 +0,0 @@
1-package libwebp
2-
3-import (
4- "errors"
5- "fmt"
6- "runtime"
7- "sync"
8-
9- "github.com/bnema/purego"
10-)
11-
12-var (
13- loadOnce sync.Once
14- loadErr error
15-)
16-
17-func EnsureLoaded() error {
18- loadOnce.Do(func() {
19- h, err := openLib()
20- if err != nil {
21- loadErr = err
22- return
23- }
24-
25- if err := registerAll(h); err != nil {
26- loadErr = err
27- }
28- })
29-
30- return loadErr
31-}
32-
33-func Available() bool {
34- return EnsureLoaded() == nil
35-}
36-
37-func register(lib uintptr, fnPtr interface{}, symbol string) error {
38- addr, err := purego.Dlsym(lib, symbol)
39- if err != nil {
40- return fmt.Errorf("resolve %s: %w", symbol, err)
41- }
42- purego.RegisterFunc(fnPtr, addr)
43- return nil
44-}
45-
46-// registerOptional resolves symbol from lib and registers fnPtr if found.
47-// Missing symbols are silently ignored; the function pointer is left nil.
48-func registerOptional(lib uintptr, fnPtr interface{}, symbol string) {
49- addr, err := purego.Dlsym(lib, symbol)
50- if err != nil {
51- return
52- }
53- purego.RegisterFunc(fnPtr, addr)
54-}
55-
56-// ValidateDecoderConfigAvailable reports whether WebPValidateDecoderConfig
57-// was found in the loaded libwebp. It was added in libwebp 1.6.0 (2025-03).
58-func ValidateDecoderConfigAvailable() bool {
59- return EnsureLoaded() == nil && xWebPValidateDecoderConfig != nil
60-}
61-
62-func openLib() (uintptr, error) {
63- var errs []error
64- for _, name := range candidateLibNames() {
65- lib, err := purego.Dlopen(name, purego.RTLD_NOW|purego.RTLD_GLOBAL)
66- if err == nil {
67- return lib, nil
68- }
69- errs = append(errs, fmt.Errorf("%s: %w", name, err))
70- }
71-
72- return 0, errors.Join(errs...)
73-}
74-
75-func candidateLibNames() []string {
76- switch runtime.GOOS {
77- case "linux":
78- return []string{"libwebp.so", "libwebp.so.8", "libwebp.so.7", "libwebp.so.6"}
79- case "darwin":
80- return []string{"libwebp.dylib"}
81- case "windows":
82- return []string{"libwebp.dll", "webp.dll"}
83- default:
84- return []string{"libwebp.so"}
85- }
86-}
@@ -1,86 +0,0 @@
1-package libwebp
2-
3-import (
4- "errors"
5- "fmt"
6- "runtime"
7- "sync"
8-
9- "github.com/bnema/purego"
10-)
11-
12-var (
13- loadOnce sync.Once
14- loadErr error
15-)
16-
17-func EnsureLoaded() error {
18- loadOnce.Do(func() {
19- h, err := openLib()
20- if err != nil {
21- loadErr = err
22- return
23- }
24-
25- if err := registerAll(h); err != nil {
26- loadErr = err
27- }
28- })
29-
30- return loadErr
31-}
32-
33-func Available() bool {
34- return EnsureLoaded() == nil
35-}
36-
37-func register(lib uintptr, fnPtr interface{}, symbol string) error {
38- addr, err := purego.Dlsym(lib, symbol)
39- if err != nil {
40- return fmt.Errorf("resolve %s: %w", symbol, err)
41- }
42- purego.RegisterFunc(fnPtr, addr)
43- return nil
44-}
45-
46-// registerOptional resolves symbol from lib and registers fnPtr if found.
47-// Missing symbols are silently ignored; the function pointer is left nil.
48-func registerOptional(lib uintptr, fnPtr interface{}, symbol string) {
49- addr, err := purego.Dlsym(lib, symbol)
50- if err != nil {
51- return
52- }
53- purego.RegisterFunc(fnPtr, addr)
54-}
55-
56-// ValidateDecoderConfigAvailable reports whether WebPValidateDecoderConfig
57-// was found in the loaded libwebp. It was added in libwebp 1.6.0 (2025-03).
58-func ValidateDecoderConfigAvailable() bool {
59- return EnsureLoaded() == nil && xWebPValidateDecoderConfig != nil
60-}
61-
62-func openLib() (uintptr, error) {
63- var errs []error
64- for _, name := range candidateLibNames() {
65- lib, err := purego.Dlopen(name, purego.RTLD_NOW|purego.RTLD_GLOBAL)
66- if err == nil {
67- return lib, nil
68- }
69- errs = append(errs, fmt.Errorf("%s: %w", name, err))
70- }
71-
72- return 0, errors.Join(errs...)
73-}
74-
75-func candidateLibNames() []string {
76- switch runtime.GOOS {
77- case "linux":
78- return []string{"libwebp.so", "libwebp.so.8", "libwebp.so.7", "libwebp.so.6"}
79- case "darwin":
80- return []string{"libwebp.dylib"}
81- case "windows":
82- return []string{"libwebp.dll", "webp.dll"}
83- default:
84- return []string{"libwebp.so"}
85- }
86-}
D third_party/purego-webp/internal/libwebp/types.go +0 -164
@@ -1,164 +0,0 @@
1-package libwebp
2-
3-type VP8StatusCode int32
4-
5-const (
6- VP8StatusOK VP8StatusCode = 0
7- VP8StatusOutOfMemory VP8StatusCode = 1
8- VP8StatusInvalidParam VP8StatusCode = 2
9- VP8StatusBitstreamError VP8StatusCode = 3
10- VP8StatusUnsupportedFeat VP8StatusCode = 4
11- VP8StatusSuspended VP8StatusCode = 5
12- VP8StatusUserAbort VP8StatusCode = 6
13- VP8StatusNotEnoughData VP8StatusCode = 7
14- WebPDecoderABIVersion int32 = 0x0210
15- WebPEncoderABIVersion int32 = 0x0210
16-)
17-
18-type WebPBitstreamFeatures struct {
19- Width int32
20- Height int32
21- HasAlpha int32
22- HasAnimation int32
23- Format int32
24- Pad [5]uint32
25-}
26-
27-type WebPRGBABuffer struct {
28- RGBA uintptr
29- Stride int32
30- _ int32
31- Size uintptr
32-}
33-
34-type WebPYUVABuffer struct {
35- Y uintptr
36- U uintptr
37- V uintptr
38- A uintptr
39- YStride int32
40- UStride int32
41- VStride int32
42- AStride int32
43- YSize uintptr
44- USize uintptr
45- VSize uintptr
46- ASize uintptr
47-}
48-
49-// WebPDecBuffer matches the C layout used by decode.h.
50-// The union field is represented as raw bytes and should be manipulated only
51-// through dedicated helper functions/wrappers.
52-type WebPDecBuffer struct {
53- Colorspace int32
54- Width int32
55- Height int32
56- IsExternalMemory int32
57- BufferUnion [80]byte
58- Pad [4]uint32
59- PrivateMemory uintptr
60-}
61-
62-type WebPDecoderOptions struct {
63- BypassFiltering int32
64- NoFancyUpsampling int32
65- UseCropping int32
66- CropLeft int32
67- CropTop int32
68- CropWidth int32
69- CropHeight int32
70- UseScaling int32
71- ScaledWidth int32
72- ScaledHeight int32
73- UseThreads int32
74- DitheringStrength int32
75- Flip int32
76- AlphaDitheringStrength int32
77- Pad [5]uint32
78-}
79-
80-type WebPDecoderConfig struct {
81- Input WebPBitstreamFeatures
82- Output WebPDecBuffer
83- Options WebPDecoderOptions
84-}
85-
86-type WebPConfig struct {
87- Lossless int32
88- Quality float32
89- Method int32
90- ImageHint int32
91- TargetSize int32
92- TargetPSNR float32
93- Segments int32
94- SnsStrength int32
95- FilterStrength int32
96- FilterSharpness int32
97- FilterType int32
98- Autofilter int32
99- AlphaCompression int32
100- AlphaFiltering int32
101- AlphaQuality int32
102- Pass int32
103- ShowCompressed int32
104- Preprocessing int32
105- Partitions int32
106- PartitionLimit int32
107- EmulateJpegSize int32
108- ThreadLevel int32
109- LowMemory int32
110- NearLossless int32
111- Exact int32
112- UseDeltaPalette int32
113- UseSharpYuv int32
114- QMin int32
115- QMax int32
116-}
117-
118-type WebPMemoryWriter struct {
119- Mem uintptr
120- Size uintptr
121- MaxSize uintptr
122- Pad [1]uint32
123-}
124-
125-type WebPPicture struct {
126- UseArgb int32
127- Colorspace int32
128- Width int32
129- Height int32
130- Y uintptr
131- U uintptr
132- V uintptr
133- YStride int32
134- UvStride int32
135- A uintptr
136- AStride int32
137- Pad1 [2]uint32
138-
139- Argb uintptr
140- ArgbStride int32
141- Pad2 [3]uint32
142-
143- Writer uintptr
144- CustomPtr uintptr
145-
146- ExtraInfoType int32
147- ExtraInfo uintptr
148-
149- Stats uintptr
150-
151- ErrorCode int32
152- ProgressHook uintptr
153- UserData uintptr
154-
155- Pad3 [3]uint32
156-
157- Pad4 uintptr
158- Pad5 uintptr
159- Pad6 [8]uint32
160-
161- Memory uintptr
162- MemoryArgb uintptr
163- Pad7 [2]uintptr
164-}
@@ -1,164 +0,0 @@
1-package libwebp
2-
3-type VP8StatusCode int32
4-
5-const (
6- VP8StatusOK VP8StatusCode = 0
7- VP8StatusOutOfMemory VP8StatusCode = 1
8- VP8StatusInvalidParam VP8StatusCode = 2
9- VP8StatusBitstreamError VP8StatusCode = 3
10- VP8StatusUnsupportedFeat VP8StatusCode = 4
11- VP8StatusSuspended VP8StatusCode = 5
12- VP8StatusUserAbort VP8StatusCode = 6
13- VP8StatusNotEnoughData VP8StatusCode = 7
14- WebPDecoderABIVersion int32 = 0x0210
15- WebPEncoderABIVersion int32 = 0x0210
16-)
17-
18-type WebPBitstreamFeatures struct {
19- Width int32
20- Height int32
21- HasAlpha int32
22- HasAnimation int32
23- Format int32
24- Pad [5]uint32
25-}
26-
27-type WebPRGBABuffer struct {
28- RGBA uintptr
29- Stride int32
30- _ int32
31- Size uintptr
32-}
33-
34-type WebPYUVABuffer struct {
35- Y uintptr
36- U uintptr
37- V uintptr
38- A uintptr
39- YStride int32
40- UStride int32
41- VStride int32
42- AStride int32
43- YSize uintptr
44- USize uintptr
45- VSize uintptr
46- ASize uintptr
47-}
48-
49-// WebPDecBuffer matches the C layout used by decode.h.
50-// The union field is represented as raw bytes and should be manipulated only
51-// through dedicated helper functions/wrappers.
52-type WebPDecBuffer struct {
53- Colorspace int32
54- Width int32
55- Height int32
56- IsExternalMemory int32
57- BufferUnion [80]byte
58- Pad [4]uint32
59- PrivateMemory uintptr
60-}
61-
62-type WebPDecoderOptions struct {
63- BypassFiltering int32
64- NoFancyUpsampling int32
65- UseCropping int32
66- CropLeft int32
67- CropTop int32
68- CropWidth int32
69- CropHeight int32
70- UseScaling int32
71- ScaledWidth int32
72- ScaledHeight int32
73- UseThreads int32
74- DitheringStrength int32
75- Flip int32
76- AlphaDitheringStrength int32
77- Pad [5]uint32
78-}
79-
80-type WebPDecoderConfig struct {
81- Input WebPBitstreamFeatures
82- Output WebPDecBuffer
83- Options WebPDecoderOptions
84-}
85-
86-type WebPConfig struct {
87- Lossless int32
88- Quality float32
89- Method int32
90- ImageHint int32
91- TargetSize int32
92- TargetPSNR float32
93- Segments int32
94- SnsStrength int32
95- FilterStrength int32
96- FilterSharpness int32
97- FilterType int32
98- Autofilter int32
99- AlphaCompression int32
100- AlphaFiltering int32
101- AlphaQuality int32
102- Pass int32
103- ShowCompressed int32
104- Preprocessing int32
105- Partitions int32
106- PartitionLimit int32
107- EmulateJpegSize int32
108- ThreadLevel int32
109- LowMemory int32
110- NearLossless int32
111- Exact int32
112- UseDeltaPalette int32
113- UseSharpYuv int32
114- QMin int32
115- QMax int32
116-}
117-
118-type WebPMemoryWriter struct {
119- Mem uintptr
120- Size uintptr
121- MaxSize uintptr
122- Pad [1]uint32
123-}
124-
125-type WebPPicture struct {
126- UseArgb int32
127- Colorspace int32
128- Width int32
129- Height int32
130- Y uintptr
131- U uintptr
132- V uintptr
133- YStride int32
134- UvStride int32
135- A uintptr
136- AStride int32
137- Pad1 [2]uint32
138-
139- Argb uintptr
140- ArgbStride int32
141- Pad2 [3]uint32
142-
143- Writer uintptr
144- CustomPtr uintptr
145-
146- ExtraInfoType int32
147- ExtraInfo uintptr
148-
149- Stats uintptr
150-
151- ErrorCode int32
152- ProgressHook uintptr
153- UserData uintptr
154-
155- Pad3 [3]uint32
156-
157- Pad4 uintptr
158- Pad5 uintptr
159- Pad6 [8]uint32
160-
161- Memory uintptr
162- MemoryArgb uintptr
163- Pad7 [2]uintptr
164-}
D third_party/purego-webp/libwebp/libwebp.go +0 -880
@@ -1,880 +0,0 @@
1-// Package libwebp exposes C-first bindings to libwebp using purego.
2-//
3-// The API mirrors libwebp function naming and behavior as closely as possible,
4-// while using Go slices and errors for safety in common call paths.
5-package libwebp
6-
7-import (
8- "errors"
9- "fmt"
10- "math"
11- "unsafe"
12-
13- lowlevel "github.com/bnema/purego-webp/internal/libwebp"
14-)
15-
16-var (
17- // ErrInvalidData indicates invalid or empty input bitstream/data.
18- ErrInvalidData = errors.New("libwebp: invalid webp data")
19- // ErrDecodeFailed indicates libwebp decode failure.
20- ErrDecodeFailed = errors.New("libwebp: decode failed")
21- // ErrEncodeFailed indicates libwebp encode failure.
22- ErrEncodeFailed = errors.New("libwebp: encode failed")
23- // ErrInvalidDimension indicates invalid image width/height.
24- ErrInvalidDimension = errors.New("libwebp: invalid dimensions")
25- // ErrInvalidStride indicates invalid row stride for the provided buffer.
26- ErrInvalidStride = errors.New("libwebp: invalid stride")
27- // ErrBufferTooSmall indicates the destination buffer cannot hold output.
28- ErrBufferTooSmall = errors.New("libwebp: output buffer too small")
29- // ErrNotAvailable indicates the function is not available in the loaded
30- // libwebp version. Use the corresponding Available() helper to check first.
31- ErrNotAvailable = errors.New("libwebp: function not available in loaded library version")
32-)
33-
34-// VP8StatusCode is the status enum used by libwebp decode APIs.
35-type VP8StatusCode int32
36-
37-const (
38- VP8StatusOK VP8StatusCode = 0
39- VP8StatusOutOfMemory VP8StatusCode = 1
40- VP8StatusInvalidParam VP8StatusCode = 2
41- VP8StatusBitstreamError VP8StatusCode = 3
42- VP8StatusUnsupportedFeat VP8StatusCode = 4
43- VP8StatusSuspended VP8StatusCode = 5
44- VP8StatusUserAbort VP8StatusCode = 6
45- VP8StatusNotEnoughData VP8StatusCode = 7
46-)
47-
48-type BitstreamFeatures struct {
49- Width int
50- Height int
51- HasAlpha bool
52- HasAnimation bool
53- Format int
54-}
55-
56-// DecBuffer is the low-level decode output buffer struct from libwebp.
57-type DecBuffer = lowlevel.WebPDecBuffer
58-
59-// DecoderOptions is the low-level decoder options struct from libwebp.
60-type DecoderOptions = lowlevel.WebPDecoderOptions
61-
62-// DecoderConfig is the low-level decoder config struct from libwebp.
63-type DecoderConfig = lowlevel.WebPDecoderConfig
64-
65-// Config is the low-level encoder config struct from libwebp.
66-type Config = lowlevel.WebPConfig
67-
68-// MemoryWriter is libwebp's in-memory writer struct.
69-type MemoryWriter = lowlevel.WebPMemoryWriter
70-
71-// Picture is the low-level picture struct used by advanced encode APIs.
72-type Picture = lowlevel.WebPPicture
73-
74-const (
75- // Encoder presets used by WebPConfigPreset.
76- PresetDefault = 0
77- PresetPicture = 1
78- PresetPhoto = 2
79- PresetDrawing = 3
80- PresetIcon = 4
81- PresetText = 5
82-
83- HintDefault = 0
84- HintPicture = 1
85- HintPhoto = 2
86- HintGraph = 3
87- HintLast = 4
88-
89- // Decode output colorspace/mode constants from decode.h.
90- ModeRGB = 0
91- ModeRGBA = 1
92- ModeBGR = 2
93- ModeBGRA = 3
94- ModeARGB = 4
95- ModeRGBA4444 = 5
96- ModeRGB565 = 6
97- ModergbA = 7
98- ModebgrA = 8
99- ModeArgb = 9
100- ModergbA4444 = 10
101- ModeYUV = 11
102- ModeYUVA = 12
103- ModeLast = 13
104-)
105-
106-// Available reports whether libwebp can be loaded in the current environment.
107-func Available() bool {
108- return lowlevel.Available()
109-}
110-
111-// Version returns decoder and encoder library versions (packed hex format).
112-func Version() (decoder uint32, encoder uint32, err error) {
113- if err := lowlevel.EnsureLoaded(); err != nil {
114- return 0, 0, err
115- }
116-
117- return uint32(lowlevel.WebPGetDecoderVersion()), uint32(lowlevel.WebPGetEncoderVersion()), nil
118-}
119-
120-// WebPGetInfo validates the bitstream and returns image dimensions.
121-func WebPGetInfo(data []byte) (width, height int, ok bool, err error) {
122- if err := lowlevel.EnsureLoaded(); err != nil {
123- return 0, 0, false, err
124- }
125- if len(data) == 0 {
126- return 0, 0, false, nil
127- }
128-
129- var w, h int32
130- ret := lowlevel.WebPGetInfo(&data[0], uintptr(len(data)), &w, &h)
131- return int(w), int(h), ret != 0, nil
132-}
133-
134-// WebPGetFeatures returns parsed bitstream features and decode status.
135-func WebPGetFeatures(data []byte) (features BitstreamFeatures, status VP8StatusCode, err error) {
136- if err := lowlevel.EnsureLoaded(); err != nil {
137- return BitstreamFeatures{}, 0, err
138- }
139- if len(data) == 0 {
140- return BitstreamFeatures{}, VP8StatusNotEnoughData, nil
141- }
142-
143- var raw lowlevel.WebPBitstreamFeatures
144- status = VP8StatusCode(lowlevel.WebPGetFeaturesInternal(&data[0], uintptr(len(data)), &raw, lowlevel.WebPDecoderABIVersion))
145-
146- return BitstreamFeatures{
147- Width: int(raw.Width),
148- Height: int(raw.Height),
149- HasAlpha: raw.HasAlpha != 0,
150- HasAnimation: raw.HasAnimation != 0,
151- Format: int(raw.Format),
152- }, status, nil
153-}
154-
155-// WebPInitDecBuffer initializes a decode buffer with ABI-checked defaults.
156-func WebPInitDecBuffer(buffer *DecBuffer) (ok bool, err error) {
157- if err := lowlevel.EnsureLoaded(); err != nil {
158- return false, err
159- }
160- if buffer == nil {
161- return false, ErrInvalidData
162- }
163-
164- return lowlevel.WebPInitDecBufferInternal(buffer, lowlevel.WebPDecoderABIVersion) != 0, nil
165-}
166-
167-// WebPFreeDecBuffer releases any memory owned by the decode buffer.
168-func WebPFreeDecBuffer(buffer *DecBuffer) error {
169- if err := lowlevel.EnsureLoaded(); err != nil {
170- return err
171- }
172- if buffer == nil {
173- return nil
174- }
175-
176- lowlevel.WebPFreeDecBuffer(buffer)
177- return nil
178-}
179-
180-// WebPInitDecoderConfig initializes a decoder config with ABI-checked defaults.
181-func WebPInitDecoderConfig(config *DecoderConfig) (ok bool, err error) {
182- if err := lowlevel.EnsureLoaded(); err != nil {
183- return false, err
184- }
185- if config == nil {
186- return false, ErrInvalidData
187- }
188-
189- return lowlevel.WebPInitDecoderConfigInternal(config, lowlevel.WebPDecoderABIVersion) != 0, nil
190-}
191-
192-// WebPValidateDecoderConfigAvailable reports whether WebPValidateDecoderConfig
193-// is available in the loaded libwebp. The symbol was added in libwebp 1.6.0
194-// (released 2025-03); most distributions still ship an earlier version.
195-func WebPValidateDecoderConfigAvailable() bool {
196- return lowlevel.ValidateDecoderConfigAvailable()
197-}
198-
199-// WebPValidateDecoderConfig validates decoder config values.
200-// It returns ErrNotAvailable if the loaded libwebp predates 1.6.0.
201-func WebPValidateDecoderConfig(config *DecoderConfig) (ok bool, err error) {
202- if err := lowlevel.EnsureLoaded(); err != nil {
203- return false, err
204- }
205- if !lowlevel.ValidateDecoderConfigAvailable() {
206- return false, ErrNotAvailable
207- }
208- if config == nil {
209- return false, ErrInvalidData
210- }
211-
212- return lowlevel.WebPValidateDecoderConfig(config) != 0, nil
213-}
214-
215-// WebPConfigInit initializes encoder config to default preset/quality.
216-func WebPConfigInit(config *Config) (ok bool, err error) {
217- if err := lowlevel.EnsureLoaded(); err != nil {
218- return false, err
219- }
220- if config == nil {
221- return false, ErrInvalidData
222- }
223-
224- return lowlevel.WebPConfigInitInternal(config, PresetDefault, 75, lowlevel.WebPEncoderABIVersion) != 0, nil
225-}
226-
227-// WebPConfigPreset initializes encoder config with the given preset and quality.
228-func WebPConfigPreset(config *Config, preset int32, quality float32) (ok bool, err error) {
229- if err := lowlevel.EnsureLoaded(); err != nil {
230- return false, err
231- }
232- if config == nil {
233- return false, ErrInvalidData
234- }
235-
236- return lowlevel.WebPConfigInitInternal(config, preset, quality, lowlevel.WebPEncoderABIVersion) != 0, nil
237-}
238-
239-// WebPConfigLosslessPreset applies a built-in lossless level preset.
240-func WebPConfigLosslessPreset(config *Config, level int32) (ok bool, err error) {
241- if err := lowlevel.EnsureLoaded(); err != nil {
242- return false, err
243- }
244- if config == nil {
245- return false, ErrInvalidData
246- }
247-
248- return lowlevel.WebPConfigLosslessPreset(config, level) != 0, nil
249-}
250-
251-// WebPValidateConfig validates encoder config values.
252-func WebPValidateConfig(config *Config) (ok bool, err error) {
253- if err := lowlevel.EnsureLoaded(); err != nil {
254- return false, err
255- }
256- if config == nil {
257- return false, ErrInvalidData
258- }
259-
260- return lowlevel.WebPValidateConfig(config) != 0, nil
261-}
262-
263-// WebPPictureInit initializes a picture struct with ABI-checked defaults.
264-func WebPPictureInit(picture *Picture) (ok bool, err error) {
265- if err := lowlevel.EnsureLoaded(); err != nil {
266- return false, err
267- }
268- if picture == nil {
269- return false, ErrInvalidData
270- }
271-
272- return lowlevel.WebPPictureInitInternal(picture, lowlevel.WebPEncoderABIVersion) != 0, nil
273-}
274-
275-// WebPMemoryWriterInit initializes a memory writer instance.
276-func WebPMemoryWriterInit(writer *MemoryWriter) error {
277- if err := lowlevel.EnsureLoaded(); err != nil {
278- return err
279- }
280- if writer == nil {
281- return ErrInvalidData
282- }
283-
284- lowlevel.WebPMemoryWriterInit(writer)
285- return nil
286-}
287-
288-// WebPMemoryWriterClear frees memory owned by a memory writer.
289-func WebPMemoryWriterClear(writer *MemoryWriter) error {
290- if err := lowlevel.EnsureLoaded(); err != nil {
291- return err
292- }
293- if writer == nil {
294- return nil
295- }
296-
297- lowlevel.WebPMemoryWriterClear(writer)
298- return nil
299-}
300-
301-// WebPEncode runs advanced encoding with explicit config and picture structs.
302-func WebPEncode(config *Config, picture *Picture) (ok bool, err error) {
303- if err := lowlevel.EnsureLoaded(); err != nil {
304- return false, err
305- }
306- if config == nil || picture == nil {
307- return false, ErrInvalidData
308- }
309-
310- return lowlevel.WebPEncode(config, picture) != 0, nil
311-}
312-
313-// WebPINewDecoder creates an incremental decoder using the provided output buffer.
314-func WebPINewDecoder(outputBuffer *DecBuffer) (uintptr, error) {
315- if err := lowlevel.EnsureLoaded(); err != nil {
316- return 0, err
317- }
318-
319- idec := lowlevel.WebPINewDecoder(outputBuffer)
320- if idec == 0 {
321- return 0, ErrDecodeFailed
322- }
323-
324- return idec, nil
325-}
326-
327-// WebPINewRGB creates an incremental decoder producing packed RGB-family output.
328-func WebPINewRGB(csp int32, outputBuffer []byte, outputStride int32) (uintptr, error) {
329- if err := lowlevel.EnsureLoaded(); err != nil {
330- return 0, err
331- }
332-
333- ptr, size := ptrAndSize(outputBuffer)
334- idec := lowlevel.WebPINewRGB(csp, ptr, size, outputStride)
335- if idec == 0 {
336- return 0, ErrDecodeFailed
337- }
338-
339- return idec, nil
340-}
341-
342-// WebPINewYUV creates an incremental decoder producing YUV planes.
343-func WebPINewYUV(luma []byte, lumaStride int32, u []byte, uStride int32, v []byte, vStride int32) (uintptr, error) {
344- if err := lowlevel.EnsureLoaded(); err != nil {
345- return 0, err
346- }
347-
348- lumaPtr, lumaSize := ptrAndSize(luma)
349- uPtr, uSize := ptrAndSize(u)
350- vPtr, vSize := ptrAndSize(v)
351-
352- idec := lowlevel.WebPINewYUV(lumaPtr, lumaSize, lumaStride, uPtr, uSize, uStride, vPtr, vSize, vStride)
353- if idec == 0 {
354- return 0, ErrDecodeFailed
355- }
356-
357- return idec, nil
358-}
359-
360-// WebPINewYUVA creates an incremental decoder producing YUVA planes.
361-func WebPINewYUVA(luma []byte, lumaStride int32, u []byte, uStride int32, v []byte, vStride int32, a []byte, aStride int32) (uintptr, error) {
362- if err := lowlevel.EnsureLoaded(); err != nil {
363- return 0, err
364- }
365-
366- lumaPtr, lumaSize := ptrAndSize(luma)
367- uPtr, uSize := ptrAndSize(u)
368- vPtr, vSize := ptrAndSize(v)
369- aPtr, aSize := ptrAndSize(a)
370-
371- idec := lowlevel.WebPINewYUVA(lumaPtr, lumaSize, lumaStride, uPtr, uSize, uStride, vPtr, vSize, vStride, aPtr, aSize, aStride)
372- if idec == 0 {
373- return 0, ErrDecodeFailed
374- }
375-
376- return idec, nil
377-}
378-
379-// WebPIDelete destroys an incremental decoder instance.
380-func WebPIDelete(idec uintptr) error {
381- if err := lowlevel.EnsureLoaded(); err != nil {
382- return err
383- }
384- if idec == 0 {
385- return nil
386- }
387-
388- lowlevel.WebPIDelete(idec)
389- return nil
390-}
391-
392-// WebPIAppend appends data to an incremental decoder.
393-func WebPIAppend(idec uintptr, data []byte) (VP8StatusCode, error) {
394- if err := lowlevel.EnsureLoaded(); err != nil {
395- return 0, err
396- }
397- if idec == 0 || len(data) == 0 {
398- return VP8StatusInvalidParam, ErrInvalidData
399- }
400-
401- return VP8StatusCode(lowlevel.WebPIAppend(idec, &data[0], uintptr(len(data)))), nil
402-}
403-
404-// WebPIUpdate updates an incremental decoder with a full prefix buffer.
405-func WebPIUpdate(idec uintptr, data []byte) (VP8StatusCode, error) {
406- if err := lowlevel.EnsureLoaded(); err != nil {
407- return 0, err
408- }
409- if idec == 0 || len(data) == 0 {
410- return VP8StatusInvalidParam, ErrInvalidData
411- }
412-
413- return VP8StatusCode(lowlevel.WebPIUpdate(idec, &data[0], uintptr(len(data)))), nil
414-}
415-
416-// WebPIDecode creates an incremental decoder with optional config and input.
417-func WebPIDecode(data []byte, config *DecoderConfig) (uintptr, error) {
418- if err := lowlevel.EnsureLoaded(); err != nil {
419- return 0, err
420- }
421- if len(data) == 0 {
422- return 0, ErrInvalidData
423- }
424-
425- idec := lowlevel.WebPIDecode(&data[0], uintptr(len(data)), config)
426- if idec == 0 {
427- return 0, ErrDecodeFailed
428- }
429-
430- return idec, nil
431-}
432-
433-// WebPIDecodedArea returns decoded displayable area metadata.
434-func WebPIDecodedArea(idec uintptr, left, top, width, height *int32) (*DecBuffer, error) {
435- if err := lowlevel.EnsureLoaded(); err != nil {
436- return nil, err
437- }
438- if idec == 0 {
439- return nil, ErrInvalidData
440- }
441-
442- buf := lowlevel.WebPIDecodedArea(idec, left, top, width, height)
443- if buf == nil {
444- return nil, ErrDecodeFailed
445- }
446-
447- return buf, nil
448-}
449-
450-// WebPIDecGetRGB returns current incremental packed RGB-family output pointer.
451-func WebPIDecGetRGB(idec uintptr, lastY, width, height, stride *int32) (uintptr, error) {
452- if err := lowlevel.EnsureLoaded(); err != nil {
453- return 0, err
454- }
455- if idec == 0 {
456- return 0, ErrInvalidData
457- }
458-
459- ptr := lowlevel.WebPIDecGetRGB(idec, lastY, width, height, stride)
460- if ptr == nil {
461- return 0, ErrDecodeFailed
462- }
463-
464- return uintptr(unsafe.Pointer(ptr)), nil
465-}
466-
467-// WebPIDecGetYUVA returns current incremental YUVA luma pointer.
468-func WebPIDecGetYUVA(idec uintptr, lastY *int32, u, v, a **byte, width, height, stride, uvStride, aStride *int32) (uintptr, error) {
469- if err := lowlevel.EnsureLoaded(); err != nil {
470- return 0, err
471- }
472- if idec == 0 {
473- return 0, ErrInvalidData
474- }
475-
476- ptr := lowlevel.WebPIDecGetYUVA(idec, lastY, u, v, a, width, height, stride, uvStride, aStride)
477- if ptr == nil {
478- return 0, ErrDecodeFailed
479- }
480-
481- return uintptr(unsafe.Pointer(ptr)), nil
482-}
483-
484-// WebPIDecGetYUV is a compatibility wrapper for YUV output without alpha.
485-func WebPIDecGetYUV(idec uintptr, lastY *int32, u, v **byte, width, height, stride, uvStride *int32) (uintptr, error) {
486- var a *byte
487- return WebPIDecGetYUVA(idec, lastY, u, v, &a, width, height, stride, uvStride, nil)
488-}
489-
490-// WebPDecode performs advanced one-shot decode using DecoderConfig.
491-func WebPDecode(data []byte, config *DecoderConfig) (status VP8StatusCode, err error) {
492- if err := lowlevel.EnsureLoaded(); err != nil {
493- return 0, err
494- }
495- if len(data) == 0 {
496- return VP8StatusNotEnoughData, nil
497- }
498- if config == nil {
499- return VP8StatusInvalidParam, ErrInvalidData
500- }
501-
502- return VP8StatusCode(lowlevel.WebPDecode(&data[0], uintptr(len(data)), config)), nil
503-}
504-
505-// WebPDecodeRGBA decodes to packed RGBA and returns an owned Go buffer.
506-func WebPDecodeRGBA(data []byte) (pix []byte, width, height, stride int, err error) {
507- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeRGBA)
508-}
509-
510-// WebPDecodeARGB decodes to packed ARGB and returns an owned Go buffer.
511-func WebPDecodeARGB(data []byte) (pix []byte, width, height, stride int, err error) {
512- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeARGB)
513-}
514-
515-// WebPDecodeBGRA decodes to packed BGRA and returns an owned Go buffer.
516-func WebPDecodeBGRA(data []byte) (pix []byte, width, height, stride int, err error) {
517- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeBGRA)
518-}
519-
520-// WebPDecodeRGB decodes to packed RGB and returns an owned Go buffer.
521-func WebPDecodeRGB(data []byte) (pix []byte, width, height, stride int, err error) {
522- return decodeToOwnedBuffer(data, 3, lowlevel.WebPDecodeRGB)
523-}
524-
525-// WebPDecodeBGR decodes to packed BGR and returns an owned Go buffer.
526-func WebPDecodeBGR(data []byte) (pix []byte, width, height, stride int, err error) {
527- return decodeToOwnedBuffer(data, 3, lowlevel.WebPDecodeBGR)
528-}
529-
530-// WebPDecodeRGBAInto decodes into a caller-provided RGBA buffer.
531-func WebPDecodeRGBAInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
532- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeRGBAInto)
533-}
534-
535-// WebPDecodeRGBAIntoWithInfo decodes into a caller-provided RGBA buffer using
536-// dimensions already validated by WebPGetInfo, avoiding a second parse.
537-func WebPDecodeRGBAIntoWithInfo(data []byte, outputBuffer []byte, outputStride, width, height int) error {
538- return decodeIntoWithInfo(data, outputBuffer, outputStride, width, height, 4, lowlevel.WebPDecodeRGBAInto)
539-}
540-
541-// WebPDecodeARGBInto decodes into a caller-provided ARGB buffer.
542-func WebPDecodeARGBInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
543- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeARGBInto)
544-}
545-
546-// WebPDecodeBGRAInto decodes into a caller-provided BGRA buffer.
547-func WebPDecodeBGRAInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
548- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeBGRAInto)
549-}
550-
551-// WebPDecodeRGBInto decodes into a caller-provided RGB buffer.
552-func WebPDecodeRGBInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
553- return decodeInto(data, outputBuffer, outputStride, 3, lowlevel.WebPDecodeRGBInto)
554-}
555-
556-// WebPDecodeBGRInto decodes into a caller-provided BGR buffer.
557-func WebPDecodeBGRInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
558- return decodeInto(data, outputBuffer, outputStride, 3, lowlevel.WebPDecodeBGRInto)
559-}
560-
561-// WebPDecodeYUV decodes to planar YUV and returns owned Go buffers.
562-func WebPDecodeYUV(data []byte) (y, u, v []byte, width, height, yStride, uvStride int, err error) {
563- if err := lowlevel.EnsureLoaded(); err != nil {
564- return nil, nil, nil, 0, 0, 0, 0, err
565- }
566- if len(data) == 0 {
567- return nil, nil, nil, 0, 0, 0, 0, ErrInvalidData
568- }
569-
570- var w, h int32
571- var uPtr, vPtr *byte
572- var ys, uvs int32
573- yPtr := lowlevel.WebPDecodeYUV(&data[0], uintptr(len(data)), &w, &h, &uPtr, &vPtr, &ys, &uvs)
574- if yPtr == nil {
575- return nil, nil, nil, 0, 0, 0, 0, ErrDecodeFailed
576- }
577- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(yPtr)))
578-
579- width = int(w)
580- height = int(h)
581- if width <= 0 || height <= 0 {
582- return nil, nil, nil, 0, 0, 0, 0, ErrInvalidDimension
583- }
584-
585- yStride = int(ys)
586- uvStride = int(uvs)
587- uvHeight := (height + 1) / 2
588-
589- y = make([]byte, yStride*height)
590- u = make([]byte, uvStride*uvHeight)
591- v = make([]byte, uvStride*uvHeight)
592-
593- copy(y, unsafe.Slice(yPtr, len(y)))
594- copy(u, unsafe.Slice(uPtr, len(u)))
595- copy(v, unsafe.Slice(vPtr, len(v)))
596-
597- return y, u, v, width, height, yStride, uvStride, nil
598-}
599-
600-// WebPDecodeYUVInto decodes into caller-provided Y, U and V planes.
601-func WebPDecodeYUVInto(data []byte, luma []byte, lumaStride int, u []byte, uStride int, v []byte, vStride int) (width, height int, err error) {
602- if err := lowlevel.EnsureLoaded(); err != nil {
603- return 0, 0, err
604- }
605- if len(data) == 0 {
606- return 0, 0, ErrInvalidData
607- }
608- if len(luma) == 0 || len(u) == 0 || len(v) == 0 {
609- return 0, 0, ErrBufferTooSmall
610- }
611-
612- w, h, ok, err := WebPGetInfo(data)
613- if err != nil {
614- return 0, 0, err
615- }
616- if !ok {
617- return 0, 0, ErrInvalidData
618- }
619- if lumaStride < w {
620- return 0, 0, ErrInvalidStride
621- }
622- uvWidth := (w + 1) / 2
623- uvHeight := (h + 1) / 2
624- if uStride < uvWidth || vStride < uvWidth {
625- return 0, 0, ErrInvalidStride
626- }
627- if len(luma) < lumaStride*h || len(u) < uStride*uvHeight || len(v) < vStride*uvHeight {
628- return 0, 0, ErrBufferTooSmall
629- }
630-
631- ptr := lowlevel.WebPDecodeYUVInto(
632- &data[0],
633- uintptr(len(data)),
634- &luma[0],
635- uintptr(len(luma)),
636- int32(lumaStride),
637- &u[0],
638- uintptr(len(u)),
639- int32(uStride),
640- &v[0],
641- uintptr(len(v)),
642- int32(vStride),
643- )
644- if ptr == nil {
645- return 0, 0, ErrDecodeFailed
646- }
647-
648- return w, h, nil
649-}
650-
651-// WebPEncodeRGBA encodes packed RGBA pixels with lossy quality.
652-func WebPEncodeRGBA(rgba []byte, width, height, stride int, quality float32) ([]byte, error) {
653- return encodeWithQuality(rgba, width, height, stride, 4, quality, lowlevel.WebPEncodeRGBA)
654-}
655-
656-// WebPEncodeBGRA encodes packed BGRA pixels with lossy quality.
657-func WebPEncodeBGRA(bgra []byte, width, height, stride int, quality float32) ([]byte, error) {
658- return encodeWithQuality(bgra, width, height, stride, 4, quality, lowlevel.WebPEncodeBGRA)
659-}
660-
661-// WebPEncodeRGB encodes packed RGB pixels with lossy quality.
662-func WebPEncodeRGB(rgb []byte, width, height, stride int, quality float32) ([]byte, error) {
663- return encodeWithQuality(rgb, width, height, stride, 3, quality, lowlevel.WebPEncodeRGB)
664-}
665-
666-// WebPEncodeBGR encodes packed BGR pixels with lossy quality.
667-func WebPEncodeBGR(bgr []byte, width, height, stride int, quality float32) ([]byte, error) {
668- return encodeWithQuality(bgr, width, height, stride, 3, quality, lowlevel.WebPEncodeBGR)
669-}
670-
671-// WebPEncodeLosslessRGBA encodes packed RGBA pixels in lossless mode.
672-func WebPEncodeLosslessRGBA(rgba []byte, width, height, stride int) ([]byte, error) {
673- return encodeLossless(rgba, width, height, stride, 4, lowlevel.WebPEncodeLosslessRGBA)
674-}
675-
676-// WebPEncodeLosslessBGRA encodes packed BGRA pixels in lossless mode.
677-func WebPEncodeLosslessBGRA(bgra []byte, width, height, stride int) ([]byte, error) {
678- return encodeLossless(bgra, width, height, stride, 4, lowlevel.WebPEncodeLosslessBGRA)
679-}
680-
681-// WebPEncodeLosslessRGB encodes packed RGB pixels in lossless mode.
682-func WebPEncodeLosslessRGB(rgb []byte, width, height, stride int) ([]byte, error) {
683- return encodeLossless(rgb, width, height, stride, 3, lowlevel.WebPEncodeLosslessRGB)
684-}
685-
686-// WebPEncodeLosslessBGR encodes packed BGR pixels in lossless mode.
687-func WebPEncodeLosslessBGR(bgr []byte, width, height, stride int) ([]byte, error) {
688- return encodeLossless(bgr, width, height, stride, 3, lowlevel.WebPEncodeLosslessBGR)
689-}
690-
691-type decodeFunc func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
692-
693-type decodeIntoFunc func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
694-
695-func decodeInto(data []byte, outputBuffer []byte, outputStride int, bytesPerPixel int, fn decodeIntoFunc) (width, height int, err error) {
696- if err := lowlevel.EnsureLoaded(); err != nil {
697- return 0, 0, err
698- }
699- if len(data) == 0 {
700- return 0, 0, ErrInvalidData
701- }
702- if len(outputBuffer) == 0 {
703- return 0, 0, ErrBufferTooSmall
704- }
705- w, h, ok, err := WebPGetInfo(data)
706- if err != nil {
707- return 0, 0, err
708- }
709- if !ok {
710- return 0, 0, ErrInvalidData
711- }
712- if err := decodeIntoWithInfo(data, outputBuffer, outputStride, w, h, bytesPerPixel, fn); err != nil {
713- return 0, 0, err
714- }
715- return w, h, nil
716-}
717-
718-func decodeIntoWithInfo(data []byte, outputBuffer []byte, outputStride, width, height, bytesPerPixel int, fn decodeIntoFunc) error {
719- if err := lowlevel.EnsureLoaded(); err != nil {
720- return err
721- }
722- if len(data) == 0 {
723- return ErrInvalidData
724- }
725- if len(outputBuffer) == 0 {
726- return ErrBufferTooSmall
727- }
728- minimumStride, _, err := checkedDecodeLayout(width, height, bytesPerPixel)
729- if err != nil {
730- return err
731- }
732- if outputStride < minimumStride || outputStride > math.MaxInt32 {
733- return ErrInvalidStride
734- }
735- required, ok := checkedProduct(outputStride, height)
736- if !ok || len(outputBuffer) < required {
737- return ErrBufferTooSmall
738- }
739- if fn(&data[0], uintptr(len(data)), &outputBuffer[0], uintptr(len(outputBuffer)), int32(outputStride)) == nil {
740- return ErrDecodeFailed
741- }
742- return nil
743-}
744-
745-func decodeToOwnedBuffer(data []byte, bytesPerPixel int, fn decodeFunc) (pix []byte, width, height, stride int, err error) {
746- if err := lowlevel.EnsureLoaded(); err != nil {
747- return nil, 0, 0, 0, err
748- }
749- if len(data) == 0 {
750- return nil, 0, 0, 0, ErrInvalidData
751- }
752-
753- var w, h int32
754- ptr := fn(&data[0], uintptr(len(data)), &w, &h)
755- if ptr == nil {
756- return nil, 0, 0, 0, ErrDecodeFailed
757- }
758- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(ptr)))
759-
760- width = int(w)
761- height = int(h)
762- stride, bufLen, err := checkedDecodeLayout(width, height, bytesPerPixel)
763- if err != nil {
764- return nil, 0, 0, 0, err
765- }
766- pix = make([]byte, bufLen)
767- copy(pix, unsafe.Slice(ptr, bufLen))
768-
769- return pix, width, height, stride, nil
770-}
771-
772-type encodeLossyFunc func(pix *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
773-
774-func encodeWithQuality(pix []byte, width, height, stride, bytesPerPixel int, quality float32, fn encodeLossyFunc) ([]byte, error) {
775- if err := lowlevel.EnsureLoaded(); err != nil {
776- return nil, err
777- }
778- if err := validatePixelInput(pix, width, height, stride, bytesPerPixel); err != nil {
779- return nil, err
780- }
781-
782- var out *byte
783- size := fn(&pix[0], int32(width), int32(height), int32(stride), quality, &out)
784- if size == 0 || out == nil {
785- return nil, ErrEncodeFailed
786- }
787- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(out)))
788-
789- b := make([]byte, int(size))
790- copy(b, unsafe.Slice(out, int(size)))
791-
792- return b, nil
793-}
794-
795-type encodeLosslessFunc func(pix *byte, width int32, height int32, stride int32, output **byte) uintptr
796-
797-func encodeLossless(pix []byte, width, height, stride, bytesPerPixel int, fn encodeLosslessFunc) ([]byte, error) {
798- if err := lowlevel.EnsureLoaded(); err != nil {
799- return nil, err
800- }
801- if err := validatePixelInput(pix, width, height, stride, bytesPerPixel); err != nil {
802- return nil, err
803- }
804-
805- var out *byte
806- size := fn(&pix[0], int32(width), int32(height), int32(stride), &out)
807- if size == 0 || out == nil {
808- return nil, ErrEncodeFailed
809- }
810- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(out)))
811-
812- b := make([]byte, int(size))
813- copy(b, unsafe.Slice(out, int(size)))
814-
815- return b, nil
816-}
817-
818-func validatePixelInput(pix []byte, width, height, stride, bytesPerPixel int) error {
819- minimumStride, _, err := checkedDecodeLayout(width, height, bytesPerPixel)
820- if err != nil {
821- return err
822- }
823- if stride < minimumStride || stride > math.MaxInt32 {
824- return ErrInvalidStride
825- }
826- required, ok := checkedProduct(stride, height)
827- if !ok {
828- return ErrInvalidDimension
829- }
830- if len(pix) < required {
831- return fmt.Errorf("libwebp: pixel buffer too small: got=%d need>=%d", len(pix), required)
832- }
833- return nil
834-}
835-
836-// checkedDecodeLayout validates the dimensions and packed output layout before
837-// values are passed to libwebp, whose output stride parameter is a C int.
838-func checkedDecodeLayout(width, height, bytesPerPixel int) (stride, size int, err error) {
839- if width <= 0 || height <= 0 {
840- return 0, 0, ErrInvalidDimension
841- }
842- if bytesPerPixel <= 0 || width > math.MaxInt32/bytesPerPixel {
843- return 0, 0, ErrInvalidStride
844- }
845- stride = width * bytesPerPixel
846- size, ok := checkedProduct(stride, height)
847- if !ok {
848- return 0, 0, ErrInvalidDimension
849- }
850- return stride, size, nil
851-}
852-
853-func checkedProduct(a, b int) (int, bool) {
854- if a < 0 || b < 0 || (a != 0 && b > int(^uint(0)>>1)/a) {
855- return 0, false
856- }
857- return a * b, true
858-}
859-
860-// WebPIsPremultipliedMode reports whether the decode colorspace is premultiplied.
861-func WebPIsPremultipliedMode(mode int) bool {
862- return mode == ModergbA || mode == ModebgrA || mode == ModeArgb || mode == ModergbA4444
863-}
864-
865-// WebPIsAlphaMode reports whether the decode colorspace contains alpha.
866-func WebPIsAlphaMode(mode int) bool {
867- return mode == ModeRGBA || mode == ModeBGRA || mode == ModeARGB || mode == ModeRGBA4444 || mode == ModeYUVA || WebPIsPremultipliedMode(mode)
868-}
869-
870-// WebPIsRGBMode reports whether the decode colorspace is RGB-family.
871-func WebPIsRGBMode(mode int) bool {
872- return mode < ModeYUV
873-}
874-
875-func ptrAndSize(b []byte) (*byte, uintptr) {
876- if len(b) == 0 {
877- return nil, 0
878- }
879- return &b[0], uintptr(len(b))
880-}
@@ -1,880 +0,0 @@
1-// Package libwebp exposes C-first bindings to libwebp using purego.
2-//
3-// The API mirrors libwebp function naming and behavior as closely as possible,
4-// while using Go slices and errors for safety in common call paths.
5-package libwebp
6-
7-import (
8- "errors"
9- "fmt"
10- "math"
11- "unsafe"
12-
13- lowlevel "github.com/bnema/purego-webp/internal/libwebp"
14-)
15-
16-var (
17- // ErrInvalidData indicates invalid or empty input bitstream/data.
18- ErrInvalidData = errors.New("libwebp: invalid webp data")
19- // ErrDecodeFailed indicates libwebp decode failure.
20- ErrDecodeFailed = errors.New("libwebp: decode failed")
21- // ErrEncodeFailed indicates libwebp encode failure.
22- ErrEncodeFailed = errors.New("libwebp: encode failed")
23- // ErrInvalidDimension indicates invalid image width/height.
24- ErrInvalidDimension = errors.New("libwebp: invalid dimensions")
25- // ErrInvalidStride indicates invalid row stride for the provided buffer.
26- ErrInvalidStride = errors.New("libwebp: invalid stride")
27- // ErrBufferTooSmall indicates the destination buffer cannot hold output.
28- ErrBufferTooSmall = errors.New("libwebp: output buffer too small")
29- // ErrNotAvailable indicates the function is not available in the loaded
30- // libwebp version. Use the corresponding Available() helper to check first.
31- ErrNotAvailable = errors.New("libwebp: function not available in loaded library version")
32-)
33-
34-// VP8StatusCode is the status enum used by libwebp decode APIs.
35-type VP8StatusCode int32
36-
37-const (
38- VP8StatusOK VP8StatusCode = 0
39- VP8StatusOutOfMemory VP8StatusCode = 1
40- VP8StatusInvalidParam VP8StatusCode = 2
41- VP8StatusBitstreamError VP8StatusCode = 3
42- VP8StatusUnsupportedFeat VP8StatusCode = 4
43- VP8StatusSuspended VP8StatusCode = 5
44- VP8StatusUserAbort VP8StatusCode = 6
45- VP8StatusNotEnoughData VP8StatusCode = 7
46-)
47-
48-type BitstreamFeatures struct {
49- Width int
50- Height int
51- HasAlpha bool
52- HasAnimation bool
53- Format int
54-}
55-
56-// DecBuffer is the low-level decode output buffer struct from libwebp.
57-type DecBuffer = lowlevel.WebPDecBuffer
58-
59-// DecoderOptions is the low-level decoder options struct from libwebp.
60-type DecoderOptions = lowlevel.WebPDecoderOptions
61-
62-// DecoderConfig is the low-level decoder config struct from libwebp.
63-type DecoderConfig = lowlevel.WebPDecoderConfig
64-
65-// Config is the low-level encoder config struct from libwebp.
66-type Config = lowlevel.WebPConfig
67-
68-// MemoryWriter is libwebp's in-memory writer struct.
69-type MemoryWriter = lowlevel.WebPMemoryWriter
70-
71-// Picture is the low-level picture struct used by advanced encode APIs.
72-type Picture = lowlevel.WebPPicture
73-
74-const (
75- // Encoder presets used by WebPConfigPreset.
76- PresetDefault = 0
77- PresetPicture = 1
78- PresetPhoto = 2
79- PresetDrawing = 3
80- PresetIcon = 4
81- PresetText = 5
82-
83- HintDefault = 0
84- HintPicture = 1
85- HintPhoto = 2
86- HintGraph = 3
87- HintLast = 4
88-
89- // Decode output colorspace/mode constants from decode.h.
90- ModeRGB = 0
91- ModeRGBA = 1
92- ModeBGR = 2
93- ModeBGRA = 3
94- ModeARGB = 4
95- ModeRGBA4444 = 5
96- ModeRGB565 = 6
97- ModergbA = 7
98- ModebgrA = 8
99- ModeArgb = 9
100- ModergbA4444 = 10
101- ModeYUV = 11
102- ModeYUVA = 12
103- ModeLast = 13
104-)
105-
106-// Available reports whether libwebp can be loaded in the current environment.
107-func Available() bool {
108- return lowlevel.Available()
109-}
110-
111-// Version returns decoder and encoder library versions (packed hex format).
112-func Version() (decoder uint32, encoder uint32, err error) {
113- if err := lowlevel.EnsureLoaded(); err != nil {
114- return 0, 0, err
115- }
116-
117- return uint32(lowlevel.WebPGetDecoderVersion()), uint32(lowlevel.WebPGetEncoderVersion()), nil
118-}
119-
120-// WebPGetInfo validates the bitstream and returns image dimensions.
121-func WebPGetInfo(data []byte) (width, height int, ok bool, err error) {
122- if err := lowlevel.EnsureLoaded(); err != nil {
123- return 0, 0, false, err
124- }
125- if len(data) == 0 {
126- return 0, 0, false, nil
127- }
128-
129- var w, h int32
130- ret := lowlevel.WebPGetInfo(&data[0], uintptr(len(data)), &w, &h)
131- return int(w), int(h), ret != 0, nil
132-}
133-
134-// WebPGetFeatures returns parsed bitstream features and decode status.
135-func WebPGetFeatures(data []byte) (features BitstreamFeatures, status VP8StatusCode, err error) {
136- if err := lowlevel.EnsureLoaded(); err != nil {
137- return BitstreamFeatures{}, 0, err
138- }
139- if len(data) == 0 {
140- return BitstreamFeatures{}, VP8StatusNotEnoughData, nil
141- }
142-
143- var raw lowlevel.WebPBitstreamFeatures
144- status = VP8StatusCode(lowlevel.WebPGetFeaturesInternal(&data[0], uintptr(len(data)), &raw, lowlevel.WebPDecoderABIVersion))
145-
146- return BitstreamFeatures{
147- Width: int(raw.Width),
148- Height: int(raw.Height),
149- HasAlpha: raw.HasAlpha != 0,
150- HasAnimation: raw.HasAnimation != 0,
151- Format: int(raw.Format),
152- }, status, nil
153-}
154-
155-// WebPInitDecBuffer initializes a decode buffer with ABI-checked defaults.
156-func WebPInitDecBuffer(buffer *DecBuffer) (ok bool, err error) {
157- if err := lowlevel.EnsureLoaded(); err != nil {
158- return false, err
159- }
160- if buffer == nil {
161- return false, ErrInvalidData
162- }
163-
164- return lowlevel.WebPInitDecBufferInternal(buffer, lowlevel.WebPDecoderABIVersion) != 0, nil
165-}
166-
167-// WebPFreeDecBuffer releases any memory owned by the decode buffer.
168-func WebPFreeDecBuffer(buffer *DecBuffer) error {
169- if err := lowlevel.EnsureLoaded(); err != nil {
170- return err
171- }
172- if buffer == nil {
173- return nil
174- }
175-
176- lowlevel.WebPFreeDecBuffer(buffer)
177- return nil
178-}
179-
180-// WebPInitDecoderConfig initializes a decoder config with ABI-checked defaults.
181-func WebPInitDecoderConfig(config *DecoderConfig) (ok bool, err error) {
182- if err := lowlevel.EnsureLoaded(); err != nil {
183- return false, err
184- }
185- if config == nil {
186- return false, ErrInvalidData
187- }
188-
189- return lowlevel.WebPInitDecoderConfigInternal(config, lowlevel.WebPDecoderABIVersion) != 0, nil
190-}
191-
192-// WebPValidateDecoderConfigAvailable reports whether WebPValidateDecoderConfig
193-// is available in the loaded libwebp. The symbol was added in libwebp 1.6.0
194-// (released 2025-03); most distributions still ship an earlier version.
195-func WebPValidateDecoderConfigAvailable() bool {
196- return lowlevel.ValidateDecoderConfigAvailable()
197-}
198-
199-// WebPValidateDecoderConfig validates decoder config values.
200-// It returns ErrNotAvailable if the loaded libwebp predates 1.6.0.
201-func WebPValidateDecoderConfig(config *DecoderConfig) (ok bool, err error) {
202- if err := lowlevel.EnsureLoaded(); err != nil {
203- return false, err
204- }
205- if !lowlevel.ValidateDecoderConfigAvailable() {
206- return false, ErrNotAvailable
207- }
208- if config == nil {
209- return false, ErrInvalidData
210- }
211-
212- return lowlevel.WebPValidateDecoderConfig(config) != 0, nil
213-}
214-
215-// WebPConfigInit initializes encoder config to default preset/quality.
216-func WebPConfigInit(config *Config) (ok bool, err error) {
217- if err := lowlevel.EnsureLoaded(); err != nil {
218- return false, err
219- }
220- if config == nil {
221- return false, ErrInvalidData
222- }
223-
224- return lowlevel.WebPConfigInitInternal(config, PresetDefault, 75, lowlevel.WebPEncoderABIVersion) != 0, nil
225-}
226-
227-// WebPConfigPreset initializes encoder config with the given preset and quality.
228-func WebPConfigPreset(config *Config, preset int32, quality float32) (ok bool, err error) {
229- if err := lowlevel.EnsureLoaded(); err != nil {
230- return false, err
231- }
232- if config == nil {
233- return false, ErrInvalidData
234- }
235-
236- return lowlevel.WebPConfigInitInternal(config, preset, quality, lowlevel.WebPEncoderABIVersion) != 0, nil
237-}
238-
239-// WebPConfigLosslessPreset applies a built-in lossless level preset.
240-func WebPConfigLosslessPreset(config *Config, level int32) (ok bool, err error) {
241- if err := lowlevel.EnsureLoaded(); err != nil {
242- return false, err
243- }
244- if config == nil {
245- return false, ErrInvalidData
246- }
247-
248- return lowlevel.WebPConfigLosslessPreset(config, level) != 0, nil
249-}
250-
251-// WebPValidateConfig validates encoder config values.
252-func WebPValidateConfig(config *Config) (ok bool, err error) {
253- if err := lowlevel.EnsureLoaded(); err != nil {
254- return false, err
255- }
256- if config == nil {
257- return false, ErrInvalidData
258- }
259-
260- return lowlevel.WebPValidateConfig(config) != 0, nil
261-}
262-
263-// WebPPictureInit initializes a picture struct with ABI-checked defaults.
264-func WebPPictureInit(picture *Picture) (ok bool, err error) {
265- if err := lowlevel.EnsureLoaded(); err != nil {
266- return false, err
267- }
268- if picture == nil {
269- return false, ErrInvalidData
270- }
271-
272- return lowlevel.WebPPictureInitInternal(picture, lowlevel.WebPEncoderABIVersion) != 0, nil
273-}
274-
275-// WebPMemoryWriterInit initializes a memory writer instance.
276-func WebPMemoryWriterInit(writer *MemoryWriter) error {
277- if err := lowlevel.EnsureLoaded(); err != nil {
278- return err
279- }
280- if writer == nil {
281- return ErrInvalidData
282- }
283-
284- lowlevel.WebPMemoryWriterInit(writer)
285- return nil
286-}
287-
288-// WebPMemoryWriterClear frees memory owned by a memory writer.
289-func WebPMemoryWriterClear(writer *MemoryWriter) error {
290- if err := lowlevel.EnsureLoaded(); err != nil {
291- return err
292- }
293- if writer == nil {
294- return nil
295- }
296-
297- lowlevel.WebPMemoryWriterClear(writer)
298- return nil
299-}
300-
301-// WebPEncode runs advanced encoding with explicit config and picture structs.
302-func WebPEncode(config *Config, picture *Picture) (ok bool, err error) {
303- if err := lowlevel.EnsureLoaded(); err != nil {
304- return false, err
305- }
306- if config == nil || picture == nil {
307- return false, ErrInvalidData
308- }
309-
310- return lowlevel.WebPEncode(config, picture) != 0, nil
311-}
312-
313-// WebPINewDecoder creates an incremental decoder using the provided output buffer.
314-func WebPINewDecoder(outputBuffer *DecBuffer) (uintptr, error) {
315- if err := lowlevel.EnsureLoaded(); err != nil {
316- return 0, err
317- }
318-
319- idec := lowlevel.WebPINewDecoder(outputBuffer)
320- if idec == 0 {
321- return 0, ErrDecodeFailed
322- }
323-
324- return idec, nil
325-}
326-
327-// WebPINewRGB creates an incremental decoder producing packed RGB-family output.
328-func WebPINewRGB(csp int32, outputBuffer []byte, outputStride int32) (uintptr, error) {
329- if err := lowlevel.EnsureLoaded(); err != nil {
330- return 0, err
331- }
332-
333- ptr, size := ptrAndSize(outputBuffer)
334- idec := lowlevel.WebPINewRGB(csp, ptr, size, outputStride)
335- if idec == 0 {
336- return 0, ErrDecodeFailed
337- }
338-
339- return idec, nil
340-}
341-
342-// WebPINewYUV creates an incremental decoder producing YUV planes.
343-func WebPINewYUV(luma []byte, lumaStride int32, u []byte, uStride int32, v []byte, vStride int32) (uintptr, error) {
344- if err := lowlevel.EnsureLoaded(); err != nil {
345- return 0, err
346- }
347-
348- lumaPtr, lumaSize := ptrAndSize(luma)
349- uPtr, uSize := ptrAndSize(u)
350- vPtr, vSize := ptrAndSize(v)
351-
352- idec := lowlevel.WebPINewYUV(lumaPtr, lumaSize, lumaStride, uPtr, uSize, uStride, vPtr, vSize, vStride)
353- if idec == 0 {
354- return 0, ErrDecodeFailed
355- }
356-
357- return idec, nil
358-}
359-
360-// WebPINewYUVA creates an incremental decoder producing YUVA planes.
361-func WebPINewYUVA(luma []byte, lumaStride int32, u []byte, uStride int32, v []byte, vStride int32, a []byte, aStride int32) (uintptr, error) {
362- if err := lowlevel.EnsureLoaded(); err != nil {
363- return 0, err
364- }
365-
366- lumaPtr, lumaSize := ptrAndSize(luma)
367- uPtr, uSize := ptrAndSize(u)
368- vPtr, vSize := ptrAndSize(v)
369- aPtr, aSize := ptrAndSize(a)
370-
371- idec := lowlevel.WebPINewYUVA(lumaPtr, lumaSize, lumaStride, uPtr, uSize, uStride, vPtr, vSize, vStride, aPtr, aSize, aStride)
372- if idec == 0 {
373- return 0, ErrDecodeFailed
374- }
375-
376- return idec, nil
377-}
378-
379-// WebPIDelete destroys an incremental decoder instance.
380-func WebPIDelete(idec uintptr) error {
381- if err := lowlevel.EnsureLoaded(); err != nil {
382- return err
383- }
384- if idec == 0 {
385- return nil
386- }
387-
388- lowlevel.WebPIDelete(idec)
389- return nil
390-}
391-
392-// WebPIAppend appends data to an incremental decoder.
393-func WebPIAppend(idec uintptr, data []byte) (VP8StatusCode, error) {
394- if err := lowlevel.EnsureLoaded(); err != nil {
395- return 0, err
396- }
397- if idec == 0 || len(data) == 0 {
398- return VP8StatusInvalidParam, ErrInvalidData
399- }
400-
401- return VP8StatusCode(lowlevel.WebPIAppend(idec, &data[0], uintptr(len(data)))), nil
402-}
403-
404-// WebPIUpdate updates an incremental decoder with a full prefix buffer.
405-func WebPIUpdate(idec uintptr, data []byte) (VP8StatusCode, error) {
406- if err := lowlevel.EnsureLoaded(); err != nil {
407- return 0, err
408- }
409- if idec == 0 || len(data) == 0 {
410- return VP8StatusInvalidParam, ErrInvalidData
411- }
412-
413- return VP8StatusCode(lowlevel.WebPIUpdate(idec, &data[0], uintptr(len(data)))), nil
414-}
415-
416-// WebPIDecode creates an incremental decoder with optional config and input.
417-func WebPIDecode(data []byte, config *DecoderConfig) (uintptr, error) {
418- if err := lowlevel.EnsureLoaded(); err != nil {
419- return 0, err
420- }
421- if len(data) == 0 {
422- return 0, ErrInvalidData
423- }
424-
425- idec := lowlevel.WebPIDecode(&data[0], uintptr(len(data)), config)
426- if idec == 0 {
427- return 0, ErrDecodeFailed
428- }
429-
430- return idec, nil
431-}
432-
433-// WebPIDecodedArea returns decoded displayable area metadata.
434-func WebPIDecodedArea(idec uintptr, left, top, width, height *int32) (*DecBuffer, error) {
435- if err := lowlevel.EnsureLoaded(); err != nil {
436- return nil, err
437- }
438- if idec == 0 {
439- return nil, ErrInvalidData
440- }
441-
442- buf := lowlevel.WebPIDecodedArea(idec, left, top, width, height)
443- if buf == nil {
444- return nil, ErrDecodeFailed
445- }
446-
447- return buf, nil
448-}
449-
450-// WebPIDecGetRGB returns current incremental packed RGB-family output pointer.
451-func WebPIDecGetRGB(idec uintptr, lastY, width, height, stride *int32) (uintptr, error) {
452- if err := lowlevel.EnsureLoaded(); err != nil {
453- return 0, err
454- }
455- if idec == 0 {
456- return 0, ErrInvalidData
457- }
458-
459- ptr := lowlevel.WebPIDecGetRGB(idec, lastY, width, height, stride)
460- if ptr == nil {
461- return 0, ErrDecodeFailed
462- }
463-
464- return uintptr(unsafe.Pointer(ptr)), nil
465-}
466-
467-// WebPIDecGetYUVA returns current incremental YUVA luma pointer.
468-func WebPIDecGetYUVA(idec uintptr, lastY *int32, u, v, a **byte, width, height, stride, uvStride, aStride *int32) (uintptr, error) {
469- if err := lowlevel.EnsureLoaded(); err != nil {
470- return 0, err
471- }
472- if idec == 0 {
473- return 0, ErrInvalidData
474- }
475-
476- ptr := lowlevel.WebPIDecGetYUVA(idec, lastY, u, v, a, width, height, stride, uvStride, aStride)
477- if ptr == nil {
478- return 0, ErrDecodeFailed
479- }
480-
481- return uintptr(unsafe.Pointer(ptr)), nil
482-}
483-
484-// WebPIDecGetYUV is a compatibility wrapper for YUV output without alpha.
485-func WebPIDecGetYUV(idec uintptr, lastY *int32, u, v **byte, width, height, stride, uvStride *int32) (uintptr, error) {
486- var a *byte
487- return WebPIDecGetYUVA(idec, lastY, u, v, &a, width, height, stride, uvStride, nil)
488-}
489-
490-// WebPDecode performs advanced one-shot decode using DecoderConfig.
491-func WebPDecode(data []byte, config *DecoderConfig) (status VP8StatusCode, err error) {
492- if err := lowlevel.EnsureLoaded(); err != nil {
493- return 0, err
494- }
495- if len(data) == 0 {
496- return VP8StatusNotEnoughData, nil
497- }
498- if config == nil {
499- return VP8StatusInvalidParam, ErrInvalidData
500- }
501-
502- return VP8StatusCode(lowlevel.WebPDecode(&data[0], uintptr(len(data)), config)), nil
503-}
504-
505-// WebPDecodeRGBA decodes to packed RGBA and returns an owned Go buffer.
506-func WebPDecodeRGBA(data []byte) (pix []byte, width, height, stride int, err error) {
507- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeRGBA)
508-}
509-
510-// WebPDecodeARGB decodes to packed ARGB and returns an owned Go buffer.
511-func WebPDecodeARGB(data []byte) (pix []byte, width, height, stride int, err error) {
512- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeARGB)
513-}
514-
515-// WebPDecodeBGRA decodes to packed BGRA and returns an owned Go buffer.
516-func WebPDecodeBGRA(data []byte) (pix []byte, width, height, stride int, err error) {
517- return decodeToOwnedBuffer(data, 4, lowlevel.WebPDecodeBGRA)
518-}
519-
520-// WebPDecodeRGB decodes to packed RGB and returns an owned Go buffer.
521-func WebPDecodeRGB(data []byte) (pix []byte, width, height, stride int, err error) {
522- return decodeToOwnedBuffer(data, 3, lowlevel.WebPDecodeRGB)
523-}
524-
525-// WebPDecodeBGR decodes to packed BGR and returns an owned Go buffer.
526-func WebPDecodeBGR(data []byte) (pix []byte, width, height, stride int, err error) {
527- return decodeToOwnedBuffer(data, 3, lowlevel.WebPDecodeBGR)
528-}
529-
530-// WebPDecodeRGBAInto decodes into a caller-provided RGBA buffer.
531-func WebPDecodeRGBAInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
532- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeRGBAInto)
533-}
534-
535-// WebPDecodeRGBAIntoWithInfo decodes into a caller-provided RGBA buffer using
536-// dimensions already validated by WebPGetInfo, avoiding a second parse.
537-func WebPDecodeRGBAIntoWithInfo(data []byte, outputBuffer []byte, outputStride, width, height int) error {
538- return decodeIntoWithInfo(data, outputBuffer, outputStride, width, height, 4, lowlevel.WebPDecodeRGBAInto)
539-}
540-
541-// WebPDecodeARGBInto decodes into a caller-provided ARGB buffer.
542-func WebPDecodeARGBInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
543- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeARGBInto)
544-}
545-
546-// WebPDecodeBGRAInto decodes into a caller-provided BGRA buffer.
547-func WebPDecodeBGRAInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
548- return decodeInto(data, outputBuffer, outputStride, 4, lowlevel.WebPDecodeBGRAInto)
549-}
550-
551-// WebPDecodeRGBInto decodes into a caller-provided RGB buffer.
552-func WebPDecodeRGBInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
553- return decodeInto(data, outputBuffer, outputStride, 3, lowlevel.WebPDecodeRGBInto)
554-}
555-
556-// WebPDecodeBGRInto decodes into a caller-provided BGR buffer.
557-func WebPDecodeBGRInto(data []byte, outputBuffer []byte, outputStride int) (width, height int, err error) {
558- return decodeInto(data, outputBuffer, outputStride, 3, lowlevel.WebPDecodeBGRInto)
559-}
560-
561-// WebPDecodeYUV decodes to planar YUV and returns owned Go buffers.
562-func WebPDecodeYUV(data []byte) (y, u, v []byte, width, height, yStride, uvStride int, err error) {
563- if err := lowlevel.EnsureLoaded(); err != nil {
564- return nil, nil, nil, 0, 0, 0, 0, err
565- }
566- if len(data) == 0 {
567- return nil, nil, nil, 0, 0, 0, 0, ErrInvalidData
568- }
569-
570- var w, h int32
571- var uPtr, vPtr *byte
572- var ys, uvs int32
573- yPtr := lowlevel.WebPDecodeYUV(&data[0], uintptr(len(data)), &w, &h, &uPtr, &vPtr, &ys, &uvs)
574- if yPtr == nil {
575- return nil, nil, nil, 0, 0, 0, 0, ErrDecodeFailed
576- }
577- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(yPtr)))
578-
579- width = int(w)
580- height = int(h)
581- if width <= 0 || height <= 0 {
582- return nil, nil, nil, 0, 0, 0, 0, ErrInvalidDimension
583- }
584-
585- yStride = int(ys)
586- uvStride = int(uvs)
587- uvHeight := (height + 1) / 2
588-
589- y = make([]byte, yStride*height)
590- u = make([]byte, uvStride*uvHeight)
591- v = make([]byte, uvStride*uvHeight)
592-
593- copy(y, unsafe.Slice(yPtr, len(y)))
594- copy(u, unsafe.Slice(uPtr, len(u)))
595- copy(v, unsafe.Slice(vPtr, len(v)))
596-
597- return y, u, v, width, height, yStride, uvStride, nil
598-}
599-
600-// WebPDecodeYUVInto decodes into caller-provided Y, U and V planes.
601-func WebPDecodeYUVInto(data []byte, luma []byte, lumaStride int, u []byte, uStride int, v []byte, vStride int) (width, height int, err error) {
602- if err := lowlevel.EnsureLoaded(); err != nil {
603- return 0, 0, err
604- }
605- if len(data) == 0 {
606- return 0, 0, ErrInvalidData
607- }
608- if len(luma) == 0 || len(u) == 0 || len(v) == 0 {
609- return 0, 0, ErrBufferTooSmall
610- }
611-
612- w, h, ok, err := WebPGetInfo(data)
613- if err != nil {
614- return 0, 0, err
615- }
616- if !ok {
617- return 0, 0, ErrInvalidData
618- }
619- if lumaStride < w {
620- return 0, 0, ErrInvalidStride
621- }
622- uvWidth := (w + 1) / 2
623- uvHeight := (h + 1) / 2
624- if uStride < uvWidth || vStride < uvWidth {
625- return 0, 0, ErrInvalidStride
626- }
627- if len(luma) < lumaStride*h || len(u) < uStride*uvHeight || len(v) < vStride*uvHeight {
628- return 0, 0, ErrBufferTooSmall
629- }
630-
631- ptr := lowlevel.WebPDecodeYUVInto(
632- &data[0],
633- uintptr(len(data)),
634- &luma[0],
635- uintptr(len(luma)),
636- int32(lumaStride),
637- &u[0],
638- uintptr(len(u)),
639- int32(uStride),
640- &v[0],
641- uintptr(len(v)),
642- int32(vStride),
643- )
644- if ptr == nil {
645- return 0, 0, ErrDecodeFailed
646- }
647-
648- return w, h, nil
649-}
650-
651-// WebPEncodeRGBA encodes packed RGBA pixels with lossy quality.
652-func WebPEncodeRGBA(rgba []byte, width, height, stride int, quality float32) ([]byte, error) {
653- return encodeWithQuality(rgba, width, height, stride, 4, quality, lowlevel.WebPEncodeRGBA)
654-}
655-
656-// WebPEncodeBGRA encodes packed BGRA pixels with lossy quality.
657-func WebPEncodeBGRA(bgra []byte, width, height, stride int, quality float32) ([]byte, error) {
658- return encodeWithQuality(bgra, width, height, stride, 4, quality, lowlevel.WebPEncodeBGRA)
659-}
660-
661-// WebPEncodeRGB encodes packed RGB pixels with lossy quality.
662-func WebPEncodeRGB(rgb []byte, width, height, stride int, quality float32) ([]byte, error) {
663- return encodeWithQuality(rgb, width, height, stride, 3, quality, lowlevel.WebPEncodeRGB)
664-}
665-
666-// WebPEncodeBGR encodes packed BGR pixels with lossy quality.
667-func WebPEncodeBGR(bgr []byte, width, height, stride int, quality float32) ([]byte, error) {
668- return encodeWithQuality(bgr, width, height, stride, 3, quality, lowlevel.WebPEncodeBGR)
669-}
670-
671-// WebPEncodeLosslessRGBA encodes packed RGBA pixels in lossless mode.
672-func WebPEncodeLosslessRGBA(rgba []byte, width, height, stride int) ([]byte, error) {
673- return encodeLossless(rgba, width, height, stride, 4, lowlevel.WebPEncodeLosslessRGBA)
674-}
675-
676-// WebPEncodeLosslessBGRA encodes packed BGRA pixels in lossless mode.
677-func WebPEncodeLosslessBGRA(bgra []byte, width, height, stride int) ([]byte, error) {
678- return encodeLossless(bgra, width, height, stride, 4, lowlevel.WebPEncodeLosslessBGRA)
679-}
680-
681-// WebPEncodeLosslessRGB encodes packed RGB pixels in lossless mode.
682-func WebPEncodeLosslessRGB(rgb []byte, width, height, stride int) ([]byte, error) {
683- return encodeLossless(rgb, width, height, stride, 3, lowlevel.WebPEncodeLosslessRGB)
684-}
685-
686-// WebPEncodeLosslessBGR encodes packed BGR pixels in lossless mode.
687-func WebPEncodeLosslessBGR(bgr []byte, width, height, stride int) ([]byte, error) {
688- return encodeLossless(bgr, width, height, stride, 3, lowlevel.WebPEncodeLosslessBGR)
689-}
690-
691-type decodeFunc func(data *byte, dataSize uintptr, width *int32, height *int32) *byte
692-
693-type decodeIntoFunc func(data *byte, dataSize uintptr, outputBuffer *byte, outputBufferSize uintptr, outputStride int32) *byte
694-
695-func decodeInto(data []byte, outputBuffer []byte, outputStride int, bytesPerPixel int, fn decodeIntoFunc) (width, height int, err error) {
696- if err := lowlevel.EnsureLoaded(); err != nil {
697- return 0, 0, err
698- }
699- if len(data) == 0 {
700- return 0, 0, ErrInvalidData
701- }
702- if len(outputBuffer) == 0 {
703- return 0, 0, ErrBufferTooSmall
704- }
705- w, h, ok, err := WebPGetInfo(data)
706- if err != nil {
707- return 0, 0, err
708- }
709- if !ok {
710- return 0, 0, ErrInvalidData
711- }
712- if err := decodeIntoWithInfo(data, outputBuffer, outputStride, w, h, bytesPerPixel, fn); err != nil {
713- return 0, 0, err
714- }
715- return w, h, nil
716-}
717-
718-func decodeIntoWithInfo(data []byte, outputBuffer []byte, outputStride, width, height, bytesPerPixel int, fn decodeIntoFunc) error {
719- if err := lowlevel.EnsureLoaded(); err != nil {
720- return err
721- }
722- if len(data) == 0 {
723- return ErrInvalidData
724- }
725- if len(outputBuffer) == 0 {
726- return ErrBufferTooSmall
727- }
728- minimumStride, _, err := checkedDecodeLayout(width, height, bytesPerPixel)
729- if err != nil {
730- return err
731- }
732- if outputStride < minimumStride || outputStride > math.MaxInt32 {
733- return ErrInvalidStride
734- }
735- required, ok := checkedProduct(outputStride, height)
736- if !ok || len(outputBuffer) < required {
737- return ErrBufferTooSmall
738- }
739- if fn(&data[0], uintptr(len(data)), &outputBuffer[0], uintptr(len(outputBuffer)), int32(outputStride)) == nil {
740- return ErrDecodeFailed
741- }
742- return nil
743-}
744-
745-func decodeToOwnedBuffer(data []byte, bytesPerPixel int, fn decodeFunc) (pix []byte, width, height, stride int, err error) {
746- if err := lowlevel.EnsureLoaded(); err != nil {
747- return nil, 0, 0, 0, err
748- }
749- if len(data) == 0 {
750- return nil, 0, 0, 0, ErrInvalidData
751- }
752-
753- var w, h int32
754- ptr := fn(&data[0], uintptr(len(data)), &w, &h)
755- if ptr == nil {
756- return nil, 0, 0, 0, ErrDecodeFailed
757- }
758- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(ptr)))
759-
760- width = int(w)
761- height = int(h)
762- stride, bufLen, err := checkedDecodeLayout(width, height, bytesPerPixel)
763- if err != nil {
764- return nil, 0, 0, 0, err
765- }
766- pix = make([]byte, bufLen)
767- copy(pix, unsafe.Slice(ptr, bufLen))
768-
769- return pix, width, height, stride, nil
770-}
771-
772-type encodeLossyFunc func(pix *byte, width int32, height int32, stride int32, quality float32, output **byte) uintptr
773-
774-func encodeWithQuality(pix []byte, width, height, stride, bytesPerPixel int, quality float32, fn encodeLossyFunc) ([]byte, error) {
775- if err := lowlevel.EnsureLoaded(); err != nil {
776- return nil, err
777- }
778- if err := validatePixelInput(pix, width, height, stride, bytesPerPixel); err != nil {
779- return nil, err
780- }
781-
782- var out *byte
783- size := fn(&pix[0], int32(width), int32(height), int32(stride), quality, &out)
784- if size == 0 || out == nil {
785- return nil, ErrEncodeFailed
786- }
787- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(out)))
788-
789- b := make([]byte, int(size))
790- copy(b, unsafe.Slice(out, int(size)))
791-
792- return b, nil
793-}
794-
795-type encodeLosslessFunc func(pix *byte, width int32, height int32, stride int32, output **byte) uintptr
796-
797-func encodeLossless(pix []byte, width, height, stride, bytesPerPixel int, fn encodeLosslessFunc) ([]byte, error) {
798- if err := lowlevel.EnsureLoaded(); err != nil {
799- return nil, err
800- }
801- if err := validatePixelInput(pix, width, height, stride, bytesPerPixel); err != nil {
802- return nil, err
803- }
804-
805- var out *byte
806- size := fn(&pix[0], int32(width), int32(height), int32(stride), &out)
807- if size == 0 || out == nil {
808- return nil, ErrEncodeFailed
809- }
810- defer lowlevel.WebPFree(uintptr(unsafe.Pointer(out)))
811-
812- b := make([]byte, int(size))
813- copy(b, unsafe.Slice(out, int(size)))
814-
815- return b, nil
816-}
817-
818-func validatePixelInput(pix []byte, width, height, stride, bytesPerPixel int) error {
819- minimumStride, _, err := checkedDecodeLayout(width, height, bytesPerPixel)
820- if err != nil {
821- return err
822- }
823- if stride < minimumStride || stride > math.MaxInt32 {
824- return ErrInvalidStride
825- }
826- required, ok := checkedProduct(stride, height)
827- if !ok {
828- return ErrInvalidDimension
829- }
830- if len(pix) < required {
831- return fmt.Errorf("libwebp: pixel buffer too small: got=%d need>=%d", len(pix), required)
832- }
833- return nil
834-}
835-
836-// checkedDecodeLayout validates the dimensions and packed output layout before
837-// values are passed to libwebp, whose output stride parameter is a C int.
838-func checkedDecodeLayout(width, height, bytesPerPixel int) (stride, size int, err error) {
839- if width <= 0 || height <= 0 {
840- return 0, 0, ErrInvalidDimension
841- }
842- if bytesPerPixel <= 0 || width > math.MaxInt32/bytesPerPixel {
843- return 0, 0, ErrInvalidStride
844- }
845- stride = width * bytesPerPixel
846- size, ok := checkedProduct(stride, height)
847- if !ok {
848- return 0, 0, ErrInvalidDimension
849- }
850- return stride, size, nil
851-}
852-
853-func checkedProduct(a, b int) (int, bool) {
854- if a < 0 || b < 0 || (a != 0 && b > int(^uint(0)>>1)/a) {
855- return 0, false
856- }
857- return a * b, true
858-}
859-
860-// WebPIsPremultipliedMode reports whether the decode colorspace is premultiplied.
861-func WebPIsPremultipliedMode(mode int) bool {
862- return mode == ModergbA || mode == ModebgrA || mode == ModeArgb || mode == ModergbA4444
863-}
864-
865-// WebPIsAlphaMode reports whether the decode colorspace contains alpha.
866-func WebPIsAlphaMode(mode int) bool {
867- return mode == ModeRGBA || mode == ModeBGRA || mode == ModeARGB || mode == ModeRGBA4444 || mode == ModeYUVA || WebPIsPremultipliedMode(mode)
868-}
869-
870-// WebPIsRGBMode reports whether the decode colorspace is RGB-family.
871-func WebPIsRGBMode(mode int) bool {
872- return mode < ModeYUV
873-}
874-
875-func ptrAndSize(b []byte) (*byte, uintptr) {
876- if len(b) == 0 {
877- return nil, 0
878- }
879- return &b[0], uintptr(len(b))
880-}
M vendor/modules.txt +1 -2
@@ -92,7 +92,7 @@ github.com/bnema/purego-sqlite/internal/loader
9292 github.com/bnema/purego-sqlite/internal/ports/in
9393 github.com/bnema/purego-sqlite/internal/ports/out
9494 github.com/bnema/purego-sqlite/sqlite
95-# github.com/bnema/purego-webp v0.2.1-0.20260714121650-bc33db63042a => ./third_party/purego-webp
95+# github.com/bnema/purego-webp v0.2.1-0.20260714152238-7bc9c402fdf6
9696 ## explicit; go 1.26
9797 github.com/bnema/purego-webp/internal/libwebp
9898 github.com/bnema/purego-webp/libwebp
@@ -378,4 +378,3 @@ golang.org/x/tools/internal/versions
378378 # gopkg.in/yaml.v3 v3.0.1
379379 ## explicit
380380 gopkg.in/yaml.v3
381-# github.com/bnema/purego-webp => ./third_party/purego-webp
@@ -92,7 +92,7 @@ github.com/bnema/purego-sqlite/internal/loader
92 github.com/bnema/purego-sqlite/internal/ports/in92 github.com/bnema/purego-sqlite/internal/ports/in
93 github.com/bnema/purego-sqlite/internal/ports/out93 github.com/bnema/purego-sqlite/internal/ports/out
94 github.com/bnema/purego-sqlite/sqlite94 github.com/bnema/purego-sqlite/sqlite
95-# github.com/bnema/purego-webp v0.2.1-0.20260714121650-bc33db63042a => ./third_party/purego-webp95+# github.com/bnema/purego-webp v0.2.1-0.20260714152238-7bc9c402fdf6
96 ## explicit; go 1.2696 ## explicit; go 1.26
97 github.com/bnema/purego-webp/internal/libwebp97 github.com/bnema/purego-webp/internal/libwebp
98 github.com/bnema/purego-webp/libwebp98 github.com/bnema/purego-webp/libwebp
@@ -378,4 +378,3 @@ golang.org/x/tools/internal/versions
378 # gopkg.in/yaml.v3 v3.0.1378 # gopkg.in/yaml.v3 v3.0.1
379 ## explicit379 ## explicit
380 gopkg.in/yaml.v3380 gopkg.in/yaml.v3
381-# github.com/bnema/purego-webp => ./third_party/purego-webp

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