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author | truelight <truelight@openttd.org> | 2007-06-13 10:31:40 +0000 |
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committer | truelight <truelight@openttd.org> | 2007-06-13 10:31:40 +0000 |
commit | f782a311f8bf371faa026f423719a21c399ed31b (patch) | |
tree | 98a70aa7bd079e3d0a506b21ae4262f53fdd811c /src/renderer/32bpp.cpp | |
parent | 5eda486f9336b520e0374a200651b05599030b89 (diff) | |
download | openttd-f782a311f8bf371faa026f423719a21c399ed31b.tar.xz |
(svn r10132) -Codechange: split out the last direct video-buffer read access to the blitter-layer
-Add: added a new renderer and blitter to make room for some optimized bpp
-Fix: fill the alpha channel in the grf-spriteloader
Diffstat (limited to 'src/renderer/32bpp.cpp')
-rw-r--r-- | src/renderer/32bpp.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/renderer/32bpp.cpp b/src/renderer/32bpp.cpp new file mode 100644 index 000000000..1d1d78e6a --- /dev/null +++ b/src/renderer/32bpp.cpp @@ -0,0 +1,77 @@ +#include "../stdafx.h" +#include "../gfx.h" +#include "32bpp.hpp" + +static FRenderer_32bpp iFRenderer_32bpp; + +void *Renderer_32bpp::MoveTo(const void *video, int x, int y) +{ + return (uint32 *)video + x + y * _screen.pitch; +} + +void Renderer_32bpp::SetPixel(void *video, int x, int y, uint8 color) +{ + *((uint32 *)video + x + y * _screen.pitch) = LookupColourInPalette(color); +} + +void Renderer_32bpp::SetPixelIfEmpty(void *video, int x, int y, uint8 color) +{ + uint32 *dst = (uint32 *)video + x + y * _screen.pitch; + if (*dst == 0) *dst = LookupColourInPalette(color); +} + +void Renderer_32bpp::SetHorizontalLine(void *video, int width, uint8 color) +{ + uint32 *dst = (uint32 *)video; + uint32 color32 = LookupColourInPalette(color); + + for (; width > 0; width--) { + *dst = color32; + dst++; + } +} + +void Renderer_32bpp::CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch) +{ + int direction = (height < 0) ? -1 : 1; + uint32 *dst = (uint32 *)video; + uint32 *usrc = (uint32 *)src; + + height = abs(height); + for (; height > 0; height--) { + memcpy(dst, usrc, width * sizeof(uint32)); + usrc += src_pitch * direction; + dst += _screen.pitch * direction; + } +} + +void Renderer_32bpp::CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) +{ + int direction = (height < 0) ? -1 : 1; + uint32 *udst = (uint32 *)dst; + uint32 *src = (uint32 *)video; + + height = abs(height); + for (; height > 0; height--) { + memcpy(udst, src, width * sizeof(uint32)); + src += _screen.pitch * direction; + udst += dst_pitch * direction; + } +} + +void Renderer_32bpp::MoveBuffer(void *video_dst, const void *video_src, int width, int height) +{ + uint32 *dst = (uint32 *)video_dst; + uint32 *src = (uint32 *)video_src; + + for (; height > 0; height--) { + memmove(dst, src, width * sizeof(uint32)); + src += _screen.pitch; + dst += _screen.pitch; + } +} + +int Renderer_32bpp::BufferSize(int width, int height) +{ + return width * height * sizeof(uint32); +} |