Mercurial > sdl-ios-xcode
view src/video/SDL_blendfillrect.c @ 5076:8bf5781fc582
Fixed size_t warnings on 64-bit build
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 22 Jan 2011 15:58:21 -0800 |
parents | aa8888658021 |
children | e743b9c3f6d6 |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_video.h" #include "SDL_draw.h" static int SDL_BlendFillRect_RGB555(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { unsigned inva = 0xff - a; switch (blendMode) { case SDL_BLENDMODE_BLEND: FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB555); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB555); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB555); break; default: FILLRECT(Uint16, DRAW_SETPIXEL_RGB555); break; } return 0; } static int SDL_BlendFillRect_RGB565(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { unsigned inva = 0xff - a; switch (blendMode) { case SDL_BLENDMODE_BLEND: FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB565); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB565); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB565); break; default: FILLRECT(Uint16, DRAW_SETPIXEL_RGB565); break; } return 0; } static int SDL_BlendFillRect_RGB888(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { unsigned inva = 0xff - a; switch (blendMode) { case SDL_BLENDMODE_BLEND: FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB888); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGB888); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGB888); break; default: FILLRECT(Uint32, DRAW_SETPIXEL_RGB888); break; } return 0; } static int SDL_BlendFillRect_ARGB8888(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { unsigned inva = 0xff - a; switch (blendMode) { case SDL_BLENDMODE_BLEND: FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_ARGB8888); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint32, DRAW_SETPIXEL_ADD_ARGB8888); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint32, DRAW_SETPIXEL_MOD_ARGB8888); break; default: FILLRECT(Uint32, DRAW_SETPIXEL_ARGB8888); break; } return 0; } static int SDL_BlendFillRect_RGB(SDL_Surface * dst, const SDL_Rect * rect, 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: FILLRECT(Uint16, DRAW_SETPIXEL_BLEND_RGB); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint16, DRAW_SETPIXEL_ADD_RGB); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint16, DRAW_SETPIXEL_MOD_RGB); break; default: FILLRECT(Uint16, DRAW_SETPIXEL_RGB); break; } return 0; case 4: switch (blendMode) { case SDL_BLENDMODE_BLEND: FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGB); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGB); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGB); break; default: FILLRECT(Uint32, DRAW_SETPIXEL_RGB); break; } return 0; default: SDL_Unsupported(); return -1; } } static int SDL_BlendFillRect_RGBA(SDL_Surface * dst, const SDL_Rect * rect, 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: FILLRECT(Uint32, DRAW_SETPIXEL_BLEND_RGBA); break; case SDL_BLENDMODE_ADD: FILLRECT(Uint32, DRAW_SETPIXEL_ADD_RGBA); break; case SDL_BLENDMODE_MOD: FILLRECT(Uint32, DRAW_SETPIXEL_MOD_RGBA); break; default: FILLRECT(Uint32, DRAW_SETPIXEL_RGBA); break; } return 0; default: SDL_Unsupported(); return -1; } } int SDL_BlendFillRect(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { SDL_Rect clipped; if (!dst) { SDL_SetError("Passed NULL destination surface"); return -1; } /* This function doesn't work on surfaces < 8 bpp */ if (dst->format->BitsPerPixel < 8) { SDL_SetError("SDL_BlendFillRect(): Unsupported surface format"); return -1; } /* If 'rect' == NULL, then fill the whole surface */ if (rect) { /* Perform clipping */ if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) { return 0; } rect = &clipped; } else { rect = &dst->clip_rect; } 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_BlendFillRect_RGB555(dst, rect, blendMode, r, g, b, a); } break; case 16: switch (dst->format->Rmask) { case 0xF800: return SDL_BlendFillRect_RGB565(dst, rect, blendMode, r, g, b, a); } break; case 32: switch (dst->format->Rmask) { case 0x00FF0000: if (!dst->format->Amask) { return SDL_BlendFillRect_RGB888(dst, rect, blendMode, r, g, b, a); } else { return SDL_BlendFillRect_ARGB8888(dst, rect, blendMode, r, g, b, a); } break; } break; default: break; } if (!dst->format->Amask) { return SDL_BlendFillRect_RGB(dst, rect, blendMode, r, g, b, a); } else { return SDL_BlendFillRect_RGBA(dst, rect, blendMode, r, g, b, a); } } int SDL_BlendFillRects(SDL_Surface * dst, const SDL_Rect ** rects, int count, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) { SDL_Rect clipped; int i; int (*func)(SDL_Surface * dst, const SDL_Rect * rect, SDL_BlendMode blendMode, Uint8 r, Uint8 g, Uint8 b, Uint8 a) = NULL; int status = 0; if (!dst) { SDL_SetError("Passed NULL destination surface"); return -1; } /* This function doesn't work on surfaces < 8 bpp */ if (dst->format->BitsPerPixel < 8) { SDL_SetError("SDL_BlendFillRects(): Unsupported surface format"); return -1; } 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_BlendFillRect_RGB555; } break; case 16: switch (dst->format->Rmask) { case 0xF800: func = SDL_BlendFillRect_RGB565; } break; case 32: switch (dst->format->Rmask) { case 0x00FF0000: if (!dst->format->Amask) { func = SDL_BlendFillRect_RGB888; } else { func = SDL_BlendFillRect_ARGB8888; } break; } break; default: break; } if (!func) { if (!dst->format->Amask) { func = SDL_BlendFillRect_RGB; } else { func = SDL_BlendFillRect_RGBA; } } for (i = 0; i < count; ++i) { const SDL_Rect * rect = rects[i]; /* If 'rect' == NULL, then fill the whole surface */ if (rect) { /* Perform clipping */ if (!SDL_IntersectRect(rect, &dst->clip_rect, &clipped)) { continue; } rect = &clipped; } else { rect = &dst->clip_rect; } status = func(dst, rect, blendMode, r, g, b, a); } return status; } /* vi: set ts=4 sw=4 expandtab: */