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https://github.com/ultimatepp/ultimatepp.git
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100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
#include "MDraw.h"
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void PixelPanic()
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{
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Panic("Unable to initialize graphics!");
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}
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void PixelBlock::Init()
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{
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RTIMING("Init");
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HBITMAP hbm;
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hbm = CreateCompatibleBitmap(ScreenInfo().GetHandle(), 1, 1);
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if (!hbm)
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PixelPanic();
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Buffer<byte> bibuffer(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)*256);
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BITMAPINFOHEADER *hi = (BITMAPINFOHEADER *) ~bibuffer;;
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BITMAPINFO *bi = (BITMAPINFO *)hi;
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memset(bi, 0, sizeof(BITMAPINFOHEADER));
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hi->biSize = sizeof(BITMAPINFOHEADER);
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if(!GetDIBits(ScreenInfo().GetHandle(), hbm, 0, 1, NULL, bi, DIB_RGB_COLORS)
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|| !GetDIBits(ScreenInfo().GetHandle(), hbm, 0, 1, NULL, bi, DIB_RGB_COLORS))
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PixelPanic();
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DeleteObject(hbm);
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dword rm, gm, bm;
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rm = gm = bm = 0;
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if(hi->biCompression == BI_BITFIELDS) {
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dword *dw = (dword *)bi->bmiColors;
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rm = dw[0];
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gm = dw[1];
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bm = dw[2];
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}
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LOG(Sprintf("bpp: %2d, rm:%8x gm:%8x bm:%8x", hi->biBitCount, rm, gm, bm));
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display = RGBX;
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switch(hi->biBitCount) {
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case 8:
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display = PALETTE8;
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break;
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case 16:
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if(rm == 0xf800 && gm == 0x7e0 && bm == 0x1f)
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display = RGB565;
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if(rm == 0x7c00 && gm == 0x3e0 && bm == 0x1f)
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display = RGB555;
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if(bm == 0xf800 && gm == 0x7e0 && rm == 0x1f)
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display = BGR565;
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if(bm == 0x7c00 && gm == 0x3e0 && rm == 0x1f)
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display = BGR555;
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break;
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case 24:
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display = RGB;
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break;
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}
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}
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void PixelBlock::Put(Draw& w, int x, int y)
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{
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if(!display)
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Init();
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if(hbmp) {
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RTIMING("Section");
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HDC dc = w.GetHandle();
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HDC dcMem = ::CreateCompatibleDC(dc);
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HBITMAP hbmOld = (HBITMAP) ::SelectObject(dcMem, hbmp);
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::BitBlt(dc, x, y, size.cx, size.cy, dcMem, 0, 0, SRCCOPY);
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::SelectObject(dcMem, hbmOld);
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::DeleteDC(dcMem);
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}
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else {
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RTIMING("Set");
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Buffer<byte> bibuffer(sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)*256);
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BITMAPINFOHEADER *hi = (BITMAPINFOHEADER *) ~bibuffer;;
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BITMAPINFO *bi = (BITMAPINFO *)hi;
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memset(bi, 0, sizeof(BITMAPINFOHEADER));
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hi->biSize = sizeof(BITMAPINFOHEADER);
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hi->biPlanes = 1;
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hi->biBitCount = 32;
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hi->biCompression = BI_RGB;
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hi->biSizeImage = 0;
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hi->biClrUsed = 0;
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hi->biClrImportant = 0;
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hi->biWidth = size.cx;
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hi->biHeight = size.cy;
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SetDIBitsToDevice(w.GetHandle(), x, y, size.cx, size.cy,
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0, 0, 0, size.cy,
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pixel, bi, DIB_RGB_COLORS);
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}
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}
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