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Diffstat (limited to 'src/3rdparty/libwebp/src/extras/extras.c')
-rw-r--r-- | src/3rdparty/libwebp/src/extras/extras.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/src/3rdparty/libwebp/src/extras/extras.c b/src/3rdparty/libwebp/src/extras/extras.c deleted file mode 100644 index ca32fbc..0000000 --- a/src/3rdparty/libwebp/src/extras/extras.c +++ /dev/null @@ -1,111 +0,0 @@ -// Copyright 2015 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. -// ----------------------------------------------------------------------------- -// -// Additional WebP utilities. -// - -#include "../webp/extras.h" - -#include <string.h> - -#define XTRA_MAJ_VERSION 0 -#define XTRA_MIN_VERSION 0 -#define XTRA_REV_VERSION 0 - -//------------------------------------------------------------------------------ - -int WebPGetExtrasVersion(void) { - return (XTRA_MAJ_VERSION << 16) | (XTRA_MIN_VERSION << 8) | XTRA_REV_VERSION; -} - -//------------------------------------------------------------------------------ - -int WebPImportGray(const uint8_t* gray_data, WebPPicture* pic) { - int y, width, uv_width; - if (pic == NULL || gray_data == NULL) return 0; - pic->colorspace = WEBP_YUV420; - if (!WebPPictureAlloc(pic)) return 0; - width = pic->width; - uv_width = (width + 1) >> 1; - for (y = 0; y < pic->height; ++y) { - memcpy(pic->y + y * pic->y_stride, gray_data, width); - gray_data += width; // <- we could use some 'data_stride' here if needed - if ((y & 1) == 0) { - memset(pic->u + (y >> 1) * pic->uv_stride, 128, uv_width); - memset(pic->v + (y >> 1) * pic->uv_stride, 128, uv_width); - } - } - return 1; -} - -int WebPImportRGB565(const uint8_t* rgb565, WebPPicture* pic) { - int x, y; - if (pic == NULL || rgb565 == NULL) return 0; - pic->colorspace = WEBP_YUV420; - pic->use_argb = 1; - if (!WebPPictureAlloc(pic)) return 0; - for (y = 0; y < pic->height; ++y) { - const int width = pic->width; - uint32_t* dst = pic->argb + y * pic->argb_stride; - for (x = 0; x < width; ++x) { -#ifdef WEBP_SWAP_16BIT_CSP - const uint32_t rg = rgb565[2 * x + 1]; - const uint32_t gb = rgb565[2 * x + 0]; -#else - const uint32_t rg = rgb565[2 * x + 0]; - const uint32_t gb = rgb565[2 * x + 1]; -#endif - uint32_t r = rg & 0xf8; - uint32_t g = ((rg << 5) | (gb >> 3)) & 0xfc; - uint32_t b = (gb << 5); - // dithering - r = r | (r >> 5); - g = g | (g >> 6); - b = b | (b >> 5); - dst[x] = (r << 16) | (g << 8) | b; - } - rgb565 += 2 * width; - } - return 1; -} - -int WebPImportRGB4444(const uint8_t* rgb4444, WebPPicture* pic) { - int x, y; - if (pic == NULL || rgb4444 == NULL) return 0; - pic->colorspace = WEBP_YUV420; - pic->use_argb = 1; - if (!WebPPictureAlloc(pic)) return 0; - for (y = 0; y < pic->height; ++y) { - const int width = pic->width; - uint32_t* dst = pic->argb + y * pic->argb_stride; - for (x = 0; x < width; ++x) { -#ifdef WEBP_SWAP_16BIT_CSP - const uint32_t rg = rgb4444[2 * x + 1]; - const uint32_t ba = rgb4444[2 * x + 0]; -#else - const uint32_t rg = rgb4444[2 * x + 0]; - const uint32_t ba = rgb4444[2 * x + 1]; -#endif - uint32_t r = rg & 0xf0; - uint32_t g = (rg << 4); - uint32_t b = (ba & 0xf0); - uint32_t a = (ba << 4); - // dithering - r = r | (r >> 4); - g = g | (g >> 4); - b = b | (b >> 4); - a = a | (a >> 4); - dst[x] = (a << 24) | (r << 16) | (g << 8) | b; - } - rgb4444 += 2 * width; - } - return 1; -} - -//------------------------------------------------------------------------------ |