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Diffstat (limited to 'src/main/jni/libwebp/enc/picture.c')
-rw-r--r-- | src/main/jni/libwebp/enc/picture.c | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/src/main/jni/libwebp/enc/picture.c b/src/main/jni/libwebp/enc/picture.c deleted file mode 100644 index 9a66fbe74..000000000 --- a/src/main/jni/libwebp/enc/picture.c +++ /dev/null @@ -1,289 +0,0 @@ -// Copyright 2011 Google Inc. All Rights Reserved. -// -// Use of this source code is governed by a BSD-style license -// that can be found in the COPYING file in the root of the source -// tree. An additional intellectual property rights grant can be found -// in the file PATENTS. All contributing project authors may -// be found in the AUTHORS file in the root of the source tree. -// ----------------------------------------------------------------------------- -// -// WebPPicture class basis -// -// Author: Skal (pascal.massimino@gmail.com) - -#include <assert.h> -#include <stdlib.h> - -#include "./vp8enci.h" -#include "../utils/utils.h" - -//------------------------------------------------------------------------------ -// WebPPicture -//------------------------------------------------------------------------------ - -static int DummyWriter(const uint8_t* data, size_t data_size, - const WebPPicture* const picture) { - // The following are to prevent 'unused variable' error message. - (void)data; - (void)data_size; - (void)picture; - return 1; -} - -int WebPPictureInitInternal(WebPPicture* picture, int version) { - if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_ENCODER_ABI_VERSION)) { - return 0; // caller/system version mismatch! - } - if (picture != NULL) { - memset(picture, 0, sizeof(*picture)); - picture->writer = DummyWriter; - WebPEncodingSetError(picture, VP8_ENC_OK); - } - return 1; -} - -//------------------------------------------------------------------------------ - -static void WebPPictureResetBufferARGB(WebPPicture* const picture) { - picture->memory_argb_ = NULL; - picture->argb = NULL; - picture->argb_stride = 0; -} - -static void WebPPictureResetBufferYUVA(WebPPicture* const picture) { - picture->memory_ = NULL; - picture->y = picture->u = picture->v = picture->a = NULL; - picture->y_stride = picture->uv_stride = 0; - picture->a_stride = 0; -} - -void WebPPictureResetBuffers(WebPPicture* const picture) { - WebPPictureResetBufferARGB(picture); - WebPPictureResetBufferYUVA(picture); -} - -int WebPPictureAllocARGB(WebPPicture* const picture, int width, int height) { - void* memory; - const uint64_t argb_size = (uint64_t)width * height; - - assert(picture != NULL); - - WebPSafeFree(picture->memory_argb_); - WebPPictureResetBufferARGB(picture); - - if (width <= 0 || height <= 0) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION); - } - // allocate a new buffer. - memory = WebPSafeMalloc(argb_size, sizeof(*picture->argb)); - if (memory == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - // TODO(skal): align plane to cache line? - picture->memory_argb_ = memory; - picture->argb = (uint32_t*)memory; - picture->argb_stride = width; - return 1; -} - -int WebPPictureAllocYUVA(WebPPicture* const picture, int width, int height) { - const WebPEncCSP uv_csp = picture->colorspace & WEBP_CSP_UV_MASK; - const int has_alpha = picture->colorspace & WEBP_CSP_ALPHA_BIT; - const int y_stride = width; - const int uv_width = (width + 1) >> 1; - const int uv_height = (height + 1) >> 1; - const int uv_stride = uv_width; - int a_width, a_stride; - uint64_t y_size, uv_size, a_size, total_size; - uint8_t* mem; - - assert(picture != NULL); - - WebPSafeFree(picture->memory_); - WebPPictureResetBufferYUVA(picture); - - if (uv_csp != WEBP_YUV420) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_INVALID_CONFIGURATION); - } - - // alpha - a_width = has_alpha ? width : 0; - a_stride = a_width; - y_size = (uint64_t)y_stride * height; - uv_size = (uint64_t)uv_stride * uv_height; - a_size = (uint64_t)a_stride * height; - - total_size = y_size + a_size + 2 * uv_size; - - // Security and validation checks - if (width <= 0 || height <= 0 || // luma/alpha param error - uv_width < 0 || uv_height < 0) { // u/v param error - return WebPEncodingSetError(picture, VP8_ENC_ERROR_BAD_DIMENSION); - } - // allocate a new buffer. - mem = (uint8_t*)WebPSafeMalloc(total_size, sizeof(*mem)); - if (mem == NULL) { - return WebPEncodingSetError(picture, VP8_ENC_ERROR_OUT_OF_MEMORY); - } - - // From now on, we're in the clear, we can no longer fail... - picture->memory_ = (void*)mem; - picture->y_stride = y_stride; - picture->uv_stride = uv_stride; - picture->a_stride = a_stride; - - // TODO(skal): we could align the y/u/v planes and adjust stride. - picture->y = mem; - mem += y_size; - - picture->u = mem; - mem += uv_size; - picture->v = mem; - mem += uv_size; - - if (a_size > 0) { - picture->a = mem; - mem += a_size; - } - (void)mem; // makes the static analyzer happy - return 1; -} - -int WebPPictureAlloc(WebPPicture* picture) { - if (picture != NULL) { - const int width = picture->width; - const int height = picture->height; - - WebPPictureFree(picture); // erase previous buffer - - if (!picture->use_argb) { - return WebPPictureAllocYUVA(picture, width, height); - } else { - return WebPPictureAllocARGB(picture, width, height); - } - } - return 1; -} - -void WebPPictureFree(WebPPicture* picture) { - if (picture != NULL) { - WebPSafeFree(picture->memory_); - WebPSafeFree(picture->memory_argb_); - WebPPictureResetBuffers(picture); - } -} - -//------------------------------------------------------------------------------ -// WebPMemoryWriter: Write-to-memory - -void WebPMemoryWriterInit(WebPMemoryWriter* writer) { - writer->mem = NULL; - writer->size = 0; - writer->max_size = 0; -} - -int WebPMemoryWrite(const uint8_t* data, size_t data_size, - const WebPPicture* picture) { - WebPMemoryWriter* const w = (WebPMemoryWriter*)picture->custom_ptr; - uint64_t next_size; - if (w == NULL) { - return 1; - } - next_size = (uint64_t)w->size + data_size; - if (next_size > w->max_size) { - uint8_t* new_mem; - uint64_t next_max_size = 2ULL * w->max_size; - if (next_max_size < next_size) next_max_size = next_size; - if (next_max_size < 8192ULL) next_max_size = 8192ULL; - new_mem = (uint8_t*)WebPSafeMalloc(next_max_size, 1); - if (new_mem == NULL) { - return 0; - } - if (w->size > 0) { - memcpy(new_mem, w->mem, w->size); - } - WebPSafeFree(w->mem); - w->mem = new_mem; - // down-cast is ok, thanks to WebPSafeMalloc - w->max_size = (size_t)next_max_size; - } - if (data_size > 0) { - memcpy(w->mem + w->size, data, data_size); - w->size += data_size; - } - return 1; -} - -void WebPMemoryWriterClear(WebPMemoryWriter* writer) { - if (writer != NULL) { - WebPSafeFree(writer->mem); - writer->mem = NULL; - writer->size = 0; - writer->max_size = 0; - } -} - -//------------------------------------------------------------------------------ -// Simplest high-level calls: - -typedef int (*Importer)(WebPPicture* const, const uint8_t* const, int); - -static size_t Encode(const uint8_t* rgba, int width, int height, int stride, - Importer import, float quality_factor, int lossless, - uint8_t** output) { - WebPPicture pic; - WebPConfig config; - WebPMemoryWriter wrt; - int ok; - - if (!WebPConfigPreset(&config, WEBP_PRESET_DEFAULT, quality_factor) || - !WebPPictureInit(&pic)) { - return 0; // shouldn't happen, except if system installation is broken - } - - config.lossless = !!lossless; - pic.use_argb = !!lossless; - pic.width = width; - pic.height = height; - pic.writer = WebPMemoryWrite; - pic.custom_ptr = &wrt; - WebPMemoryWriterInit(&wrt); - - ok = import(&pic, rgba, stride) && WebPEncode(&config, &pic); - WebPPictureFree(&pic); - if (!ok) { - WebPMemoryWriterClear(&wrt); - *output = NULL; - return 0; - } - *output = wrt.mem; - return wrt.size; -} - -#define ENCODE_FUNC(NAME, IMPORTER) \ -size_t NAME(const uint8_t* in, int w, int h, int bps, float q, \ - uint8_t** out) { \ - return Encode(in, w, h, bps, IMPORTER, q, 0, out); \ -} - -ENCODE_FUNC(WebPEncodeRGB, WebPPictureImportRGB) -ENCODE_FUNC(WebPEncodeBGR, WebPPictureImportBGR) -ENCODE_FUNC(WebPEncodeRGBA, WebPPictureImportRGBA) -ENCODE_FUNC(WebPEncodeBGRA, WebPPictureImportBGRA) - -#undef ENCODE_FUNC - -#define LOSSLESS_DEFAULT_QUALITY 70. -#define LOSSLESS_ENCODE_FUNC(NAME, IMPORTER) \ -size_t NAME(const uint8_t* in, int w, int h, int bps, uint8_t** out) { \ - return Encode(in, w, h, bps, IMPORTER, LOSSLESS_DEFAULT_QUALITY, 1, out); \ -} - -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessRGB, WebPPictureImportRGB) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessBGR, WebPPictureImportBGR) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessRGBA, WebPPictureImportRGBA) -LOSSLESS_ENCODE_FUNC(WebPEncodeLosslessBGRA, WebPPictureImportBGRA) - -#undef LOSSLESS_ENCODE_FUNC - -//------------------------------------------------------------------------------ |