diff options
Diffstat (limited to '3rdparty/SDL2/src/render/software/SDL_blendpoint.c')
-rw-r--r-- | 3rdparty/SDL2/src/render/software/SDL_blendpoint.c | 343 |
1 files changed, 0 insertions, 343 deletions
diff --git a/3rdparty/SDL2/src/render/software/SDL_blendpoint.c b/3rdparty/SDL2/src/render/software/SDL_blendpoint.c deleted file mode 100644 index fc42dfe767a..00000000000 --- a/3rdparty/SDL2/src/render/software/SDL_blendpoint.c +++ /dev/null @@ -1,343 +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" - -#if !SDL_RENDER_DISABLED - -#include "SDL_draw.h" -#include "SDL_blendpoint.h" - - -static int -SDL_BlendPoint_RGB555(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - unsigned inva = 0xff - a; - - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY_BLEND_RGB555(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY_ADD_RGB555(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY_MOD_RGB555(x, y); - break; - default: - DRAW_SETPIXELXY_RGB555(x, y); - break; - } - return 0; -} - -static int -SDL_BlendPoint_RGB565(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - unsigned inva = 0xff - a; - - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY_BLEND_RGB565(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY_ADD_RGB565(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY_MOD_RGB565(x, y); - break; - default: - DRAW_SETPIXELXY_RGB565(x, y); - break; - } - return 0; -} - -static int -SDL_BlendPoint_RGB888(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - unsigned inva = 0xff - a; - - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY_BLEND_RGB888(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY_ADD_RGB888(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY_MOD_RGB888(x, y); - break; - default: - DRAW_SETPIXELXY_RGB888(x, y); - break; - } - return 0; -} - -static int -SDL_BlendPoint_ARGB8888(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, - Uint8 r, Uint8 g, Uint8 b, Uint8 a) -{ - unsigned inva = 0xff - a; - - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY_BLEND_ARGB8888(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY_ADD_ARGB8888(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY_MOD_ARGB8888(x, y); - break; - default: - DRAW_SETPIXELXY_ARGB8888(x, y); - break; - } - return 0; -} - -static int -SDL_BlendPoint_RGB(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - SDL_PixelFormat *fmt = dst->format; - unsigned inva = 0xff - a; - - switch (fmt->BytesPerPixel) { - case 2: - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY2_BLEND_RGB(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY2_ADD_RGB(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY2_MOD_RGB(x, y); - break; - default: - DRAW_SETPIXELXY2_RGB(x, y); - break; - } - return 0; - case 4: - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY4_BLEND_RGB(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY4_ADD_RGB(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY4_MOD_RGB(x, y); - break; - default: - DRAW_SETPIXELXY4_RGB(x, y); - break; - } - return 0; - default: - return SDL_Unsupported(); - } -} - -static int -SDL_BlendPoint_RGBA(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - SDL_PixelFormat *fmt = dst->format; - unsigned inva = 0xff - a; - - switch (fmt->BytesPerPixel) { - case 4: - switch (blendMode) { - case SDL_BLENDMODE_BLEND: - DRAW_SETPIXELXY4_BLEND_RGBA(x, y); - break; - case SDL_BLENDMODE_ADD: - DRAW_SETPIXELXY4_ADD_RGBA(x, y); - break; - case SDL_BLENDMODE_MOD: - DRAW_SETPIXELXY4_MOD_RGBA(x, y); - break; - default: - DRAW_SETPIXELXY4_RGBA(x, y); - break; - } - return 0; - default: - return SDL_Unsupported(); - } -} - -int -SDL_BlendPoint(SDL_Surface * dst, int x, int y, SDL_BlendMode blendMode, Uint8 r, - Uint8 g, Uint8 b, Uint8 a) -{ - if (!dst) { - return SDL_SetError("Passed NULL destination surface"); - } - - /* This function doesn't work on surfaces < 8 bpp */ - if (dst->format->BitsPerPixel < 8) { - return SDL_SetError("SDL_BlendPoint(): Unsupported surface format"); - } - - /* Perform clipping */ - if (x < dst->clip_rect.x || y < dst->clip_rect.y || - x >= (dst->clip_rect.x + dst->clip_rect.w) || - y >= (dst->clip_rect.y + dst->clip_rect.h)) { - return 0; - } - - if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) { - r = DRAW_MUL(r, a); - g = DRAW_MUL(g, a); - b = DRAW_MUL(b, a); - } - - switch (dst->format->BitsPerPixel) { - case 15: - switch (dst->format->Rmask) { - case 0x7C00: - return SDL_BlendPoint_RGB555(dst, x, y, blendMode, r, g, b, a); - } - break; - case 16: - switch (dst->format->Rmask) { - case 0xF800: - return SDL_BlendPoint_RGB565(dst, x, y, blendMode, r, g, b, a); - } - break; - case 32: - switch (dst->format->Rmask) { - case 0x00FF0000: - if (!dst->format->Amask) { - return SDL_BlendPoint_RGB888(dst, x, y, blendMode, r, g, b, - a); - } else { - return SDL_BlendPoint_ARGB8888(dst, x, y, blendMode, r, g, b, - a); - } - break; - } - break; - default: - break; - } - - if (!dst->format->Amask) { - return SDL_BlendPoint_RGB(dst, x, y, blendMode, r, g, b, a); - } else { - return SDL_BlendPoint_RGBA(dst, x, y, blendMode, r, g, b, a); - } -} - -int -SDL_BlendPoints(SDL_Surface * dst, const SDL_Point * points, int count, - SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) -{ - int minx, miny; - int maxx, maxy; - int i; - int x, y; - int (*func)(SDL_Surface * dst, int x, int y, - SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL; - int status = 0; - - if (!dst) { - return SDL_SetError("Passed NULL destination surface"); - } - - /* This function doesn't work on surfaces < 8 bpp */ - if (dst->format->BitsPerPixel < 8) { - return SDL_SetError("SDL_BlendPoints(): Unsupported surface format"); - } - - if (blendMode == SDL_BLENDMODE_BLEND || blendMode == SDL_BLENDMODE_ADD) { - r = DRAW_MUL(r, a); - g = DRAW_MUL(g, a); - b = DRAW_MUL(b, a); - } - - /* FIXME: Does this function pointer slow things down significantly? */ - switch (dst->format->BitsPerPixel) { - case 15: - switch (dst->format->Rmask) { - case 0x7C00: - func = SDL_BlendPoint_RGB555; - break; - } - break; - case 16: - switch (dst->format->Rmask) { - case 0xF800: - func = SDL_BlendPoint_RGB565; - break; - } - break; - case 32: - switch (dst->format->Rmask) { - case 0x00FF0000: - if (!dst->format->Amask) { - func = SDL_BlendPoint_RGB888; - } else { - func = SDL_BlendPoint_ARGB8888; - } - break; - } - break; - default: - break; - } - - if (!func) { - if (!dst->format->Amask) { - func = SDL_BlendPoint_RGB; - } else { - func = SDL_BlendPoint_RGBA; - } - } - - minx = dst->clip_rect.x; - maxx = dst->clip_rect.x + dst->clip_rect.w - 1; - miny = dst->clip_rect.y; - maxy = dst->clip_rect.y + dst->clip_rect.h - 1; - - for (i = 0; i < count; ++i) { - x = points[i].x; - y = points[i].y; - - if (x < minx || x > maxx || y < miny || y > maxy) { - continue; - } - status = func(dst, x, y, blendMode, r, g, b, a); - } - return status; -} - -#endif /* !SDL_RENDER_DISABLED */ - -/* vi: set ts=4 sw=4 expandtab: */ |