26                        const WebPPicture* const picture) {  in DummyWriter()  argument
30   (void)picture;  in DummyWriter()
34 int WebPPictureInitInternal(WebPPicture* picture, int version) {  in WebPPictureInitInternal()  argument
38   if (picture != NULL) {  in WebPPictureInitInternal()
39     memset(picture, 0, sizeof(*picture));  in WebPPictureInitInternal()
40     picture->writer = DummyWriter;  in WebPPictureInitInternal()
41     WebPEncodingSetError(picture, VP8_ENC_OK);  in WebPPictureInitInternal()
48 int WebPValidatePicture(const WebPPicture* const picture) {  in WebPValidatePicture()  argument
49   if (picture == NULL) return 0;  in WebPValidatePicture()
50   if (picture->width <= 0 || picture->height <= 0) {  in WebPValidatePicture()
51     return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION);  in WebPValidatePicture()
53   if (picture->width <= 0 || picture->width / 4 > INT_MAX / 4 ||  in WebPValidatePicture()
54       picture->height <= 0 || picture->height / 4 > INT_MAX / 4) {  in WebPValidatePicture()
55     return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION);  in WebPValidatePicture()
57   if (picture->colorspace != WEBP_YUV420 &&  in WebPValidatePicture()
58       picture->colorspace != WEBP_YUV420A) {  in WebPValidatePicture()
59     return WebPEncodingSetError(picture, VP8_ENC_ERROR_INVALID_CONFIGURATION);  in WebPValidatePicture()
64 static void WebPPictureResetBufferARGB(WebPPicture* const picture) {  in WebPPictureResetBufferARGB()  argument
65   picture->memory_argb_ = NULL;  in WebPPictureResetBufferARGB()
66   picture->argb = NULL;  in WebPPictureResetBufferARGB()
67   picture->argb_stride = 0;  in WebPPictureResetBufferARGB()
70 static void WebPPictureResetBufferYUVA(WebPPicture* const picture) {  in WebPPictureResetBufferYUVA()  argument
71   picture->memory_ = NULL;  in WebPPictureResetBufferYUVA()
72   picture->y = picture->u = picture->v = picture->a = NULL;  in WebPPictureResetBufferYUVA()
73   picture->y_stride = picture->uv_stride = 0;  in WebPPictureResetBufferYUVA()
74   picture->a_stride = 0;  in WebPPictureResetBufferYUVA()
77 void WebPPictureResetBuffers(WebPPicture* const picture) {  in WebPPictureResetBuffers()  argument
78   WebPPictureResetBufferARGB(picture);  in WebPPictureResetBuffers()
79   WebPPictureResetBufferYUVA(picture);  in WebPPictureResetBuffers()
82 int WebPPictureAllocARGB(WebPPicture* const picture) {  in WebPPictureAllocARGB()  argument
84   const int width = picture->width;  in WebPPictureAllocARGB()
85   const int height = picture->height;  in WebPPictureAllocARGB()
88   if (!WebPValidatePicture(picture)) return 0;  in WebPPictureAllocARGB()
90   WebPSafeFree(picture->memory_argb_);  in WebPPictureAllocARGB()
91   WebPPictureResetBufferARGB(picture);  in WebPPictureAllocARGB()
94   memory = WebPSafeMalloc(argb_size + WEBP_ALIGN_CST, sizeof(*picture->argb));  in WebPPictureAllocARGB()
96     return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY);  in WebPPictureAllocARGB()
98   picture->memory_argb_ = memory;  in WebPPictureAllocARGB()
99   picture->argb = (uint32_t*)WEBP_ALIGN(memory);  in WebPPictureAllocARGB()
100   picture->argb_stride = width;  in WebPPictureAllocARGB()
104 int WebPPictureAllocYUVA(WebPPicture* const picture) {  in WebPPictureAllocYUVA()  argument
105   const int has_alpha = (int)picture->colorspace & WEBP_CSP_ALPHA_BIT;  in WebPPictureAllocYUVA()
106   const int width = picture->width;  in WebPPictureAllocYUVA()
107   const int height = picture->height;  in WebPPictureAllocYUVA()
116   if (!WebPValidatePicture(picture)) return 0;  in WebPPictureAllocYUVA()
118   WebPSafeFree(picture->memory_);  in WebPPictureAllocYUVA()
119   WebPPictureResetBufferYUVA(picture);  in WebPPictureAllocYUVA()
133     return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION);  in WebPPictureAllocYUVA()
138     return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY);  in WebPPictureAllocYUVA()
142   picture->memory_ = (void*)mem;  in WebPPictureAllocYUVA()
143   picture->y_stride  = y_stride;  in WebPPictureAllocYUVA()
144   picture->uv_stride = uv_stride;  in WebPPictureAllocYUVA()
145   picture->a_stride  = a_stride;  in WebPPictureAllocYUVA()
148   picture->y = mem;  in WebPPictureAllocYUVA()
151   picture->u = mem;  in WebPPictureAllocYUVA()
153   picture->v = mem;  in WebPPictureAllocYUVA()
157     picture->a = mem;  in WebPPictureAllocYUVA()
164 int WebPPictureAlloc(WebPPicture* picture) {  in WebPPictureAlloc()  argument
165   if (picture != NULL) {  in WebPPictureAlloc()
166     WebPPictureFree(picture);   // erase previous buffer  in WebPPictureAlloc()
168     if (!picture->use_argb) {  in WebPPictureAlloc()
169       return WebPPictureAllocYUVA(picture);  in WebPPictureAlloc()
171       return WebPPictureAllocARGB(picture);  in WebPPictureAlloc()
177 void WebPPictureFree(WebPPicture* picture) {  in WebPPictureFree()  argument
178   if (picture != NULL) {  in WebPPictureFree()
179     WebPSafeFree(picture->memory_);  in WebPPictureFree()
180     WebPSafeFree(picture->memory_argb_);  in WebPPictureFree()
181     WebPPictureResetBuffers(picture);  in WebPPictureFree()
195                     const WebPPicture* picture) {  in WebPMemoryWrite()  argument
196   WebPMemoryWriter* const w = (WebPMemoryWriter*)picture->custom_ptr;  in WebPMemoryWrite()