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Diffstat (limited to '3rdparty/SDL2/src/video/SDL_blit_0.c')
-rw-r--r--3rdparty/SDL2/src/video/SDL_blit_0.c483
1 files changed, 0 insertions, 483 deletions
diff --git a/3rdparty/SDL2/src/video/SDL_blit_0.c b/3rdparty/SDL2/src/video/SDL_blit_0.c
deleted file mode 100644
index fe7330d78d7..00000000000
--- a/3rdparty/SDL2/src/video/SDL_blit_0.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-*/
-#include "../SDL_internal.h"
-
-#include "SDL_video.h"
-#include "SDL_blit.h"
-
-/* Functions to blit from bitmaps to other surfaces */
-
-static void
-BlitBto1(SDL_BlitInfo * info)
-{
- int c;
- int width, height;
- Uint8 *src, *map, *dst;
- int srcskip, dstskip;
-
- /* Set up some basic variables */
- width = info->dst_w;
- height = info->dst_h;
- src = info->src;
- srcskip = info->src_skip;
- dst = info->dst;
- dstskip = info->dst_skip;
- map = info->table;
- srcskip += width - (width + 7) / 8;
-
- if (map) {
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- *dst = map[bit];
- }
- dst++;
- byte <<= 1;
- }
- src += srcskip;
- dst += dstskip;
- }
- } else {
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- *dst = bit;
- }
- dst++;
- byte <<= 1;
- }
- src += srcskip;
- dst += dstskip;
- }
- }
-}
-
-static void
-BlitBto2(SDL_BlitInfo * info)
-{
- int c;
- int width, height;
- Uint8 *src;
- Uint16 *map, *dst;
- int srcskip, dstskip;
-
- /* Set up some basic variables */
- width = info->dst_w;
- height = info->dst_h;
- src = info->src;
- srcskip = info->src_skip;
- dst = (Uint16 *) info->dst;
- dstskip = info->dst_skip / 2;
- map = (Uint16 *) info->table;
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- *dst = map[bit];
- }
- byte <<= 1;
- dst++;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static void
-BlitBto3(SDL_BlitInfo * info)
-{
- int c, o;
- int width, height;
- Uint8 *src, *map, *dst;
- int srcskip, dstskip;
-
- /* Set up some basic variables */
- width = info->dst_w;
- height = info->dst_h;
- src = info->src;
- srcskip = info->src_skip;
- dst = info->dst;
- dstskip = info->dst_skip;
- map = info->table;
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- o = bit * 4;
- dst[0] = map[o++];
- dst[1] = map[o++];
- dst[2] = map[o++];
- }
- byte <<= 1;
- dst += 3;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static void
-BlitBto4(SDL_BlitInfo * info)
-{
- int width, height;
- Uint8 *src;
- Uint32 *map, *dst;
- int srcskip, dstskip;
- int c;
-
- /* Set up some basic variables */
- width = info->dst_w;
- height = info->dst_h;
- src = info->src;
- srcskip = info->src_skip;
- dst = (Uint32 *) info->dst;
- dstskip = info->dst_skip / 4;
- map = (Uint32 *) info->table;
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- *dst = map[bit];
- }
- byte <<= 1;
- dst++;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static void
-BlitBto1Key(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint8 *dst = info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- Uint32 ckey = info->colorkey;
- Uint8 *palmap = info->table;
- int c;
-
- /* Set up some basic variables */
- srcskip += width - (width + 7) / 8;
-
- if (palmap) {
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- *dst = palmap[bit];
- }
- dst++;
- byte <<= 1;
- }
- src += srcskip;
- dst += dstskip;
- }
- } else {
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- *dst = bit;
- }
- dst++;
- byte <<= 1;
- }
- src += srcskip;
- dst += dstskip;
- }
- }
-}
-
-static void
-BlitBto2Key(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint16 *dstp = (Uint16 *) info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- Uint32 ckey = info->colorkey;
- Uint8 *palmap = info->table;
- int c;
-
- /* Set up some basic variables */
- srcskip += width - (width + 7) / 8;
- dstskip /= 2;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- *dstp = ((Uint16 *) palmap)[bit];
- }
- byte <<= 1;
- dstp++;
- }
- src += srcskip;
- dstp += dstskip;
- }
-}
-
-static void
-BlitBto3Key(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint8 *dst = info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- Uint32 ckey = info->colorkey;
- Uint8 *palmap = info->table;
- int c;
-
- /* Set up some basic variables */
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- SDL_memcpy(dst, &palmap[bit * 4], 3);
- }
- byte <<= 1;
- dst += 3;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static void
-BlitBto4Key(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint32 *dstp = (Uint32 *) info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- Uint32 ckey = info->colorkey;
- Uint8 *palmap = info->table;
- int c;
-
- /* Set up some basic variables */
- srcskip += width - (width + 7) / 8;
- dstskip /= 4;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- *dstp = ((Uint32 *) palmap)[bit];
- }
- byte <<= 1;
- dstp++;
- }
- src += srcskip;
- dstp += dstskip;
- }
-}
-
-static void
-BlitBtoNAlpha(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint8 *dst = info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- const SDL_Color *srcpal = info->src_fmt->palette->colors;
- SDL_PixelFormat *dstfmt = info->dst_fmt;
- int dstbpp;
- int c;
- Uint32 pixel;
- unsigned sR, sG, sB;
- unsigned dR, dG, dB, dA;
- const unsigned A = info->a;
-
- /* Set up some basic variables */
- dstbpp = dstfmt->BytesPerPixel;
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (1) {
- sR = srcpal[bit].r;
- sG = srcpal[bit].g;
- sB = srcpal[bit].b;
- DISEMBLE_RGBA(dst, dstbpp, dstfmt, pixel, dR, dG, dB, dA);
- ALPHA_BLEND_RGBA(sR, sG, sB, A, dR, dG, dB, dA);
- ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
- }
- byte <<= 1;
- dst += dstbpp;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static void
-BlitBtoNAlphaKey(SDL_BlitInfo * info)
-{
- int width = info->dst_w;
- int height = info->dst_h;
- Uint8 *src = info->src;
- Uint8 *dst = info->dst;
- int srcskip = info->src_skip;
- int dstskip = info->dst_skip;
- SDL_PixelFormat *srcfmt = info->src_fmt;
- SDL_PixelFormat *dstfmt = info->dst_fmt;
- const SDL_Color *srcpal = srcfmt->palette->colors;
- int dstbpp;
- int c;
- Uint32 pixel;
- unsigned sR, sG, sB;
- unsigned dR, dG, dB, dA;
- const unsigned A = info->a;
- Uint32 ckey = info->colorkey;
-
- /* Set up some basic variables */
- dstbpp = dstfmt->BytesPerPixel;
- srcskip += width - (width + 7) / 8;
-
- while (height--) {
- Uint8 byte = 0, bit;
- for (c = 0; c < width; ++c) {
- if ((c & 7) == 0) {
- byte = *src++;
- }
- bit = (byte & 0x80) >> 7;
- if (bit != ckey) {
- sR = srcpal[bit].r;
- sG = srcpal[bit].g;
- sB = srcpal[bit].b;
- DISEMBLE_RGBA(dst, dstbpp, dstfmt, pixel, dR, dG, dB, dA);
- ALPHA_BLEND_RGBA(sR, sG, sB, A, dR, dG, dB, dA);
- ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
- }
- byte <<= 1;
- dst += dstbpp;
- }
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static const SDL_BlitFunc bitmap_blit[] = {
- (SDL_BlitFunc) NULL, BlitBto1, BlitBto2, BlitBto3, BlitBto4
-};
-
-static const SDL_BlitFunc colorkey_blit[] = {
- (SDL_BlitFunc) NULL, BlitBto1Key, BlitBto2Key, BlitBto3Key, BlitBto4Key
-};
-
-SDL_BlitFunc
-SDL_CalculateBlit0(SDL_Surface * surface)
-{
- int which;
-
- if (surface->format->BitsPerPixel != 1) {
- /* We don't support sub 8-bit packed pixel modes */
- return (SDL_BlitFunc) NULL;
- }
- if (surface->map->dst->format->BitsPerPixel < 8) {
- which = 0;
- } else {
- which = surface->map->dst->format->BytesPerPixel;
- }
- switch (surface->map->info.flags & ~SDL_COPY_RLE_MASK) {
- case 0:
- return bitmap_blit[which];
-
- case SDL_COPY_COLORKEY:
- return colorkey_blit[which];
-
- case SDL_COPY_MODULATE_ALPHA | SDL_COPY_BLEND:
- return which >= 2 ? BlitBtoNAlpha : (SDL_BlitFunc) NULL;
-
- case SDL_COPY_COLORKEY | SDL_COPY_MODULATE_ALPHA | SDL_COPY_BLEND:
- return which >= 2 ? BlitBtoNAlphaKey : (SDL_BlitFunc) NULL;
- }
- return (SDL_BlitFunc) NULL;
-}
-
-/* vi: set ts=4 sw=4 expandtab: */