mirror of
https://github.com/reactos/reactos.git
synced 2024-11-20 06:15:26 +00:00
14f0e62f9a
This nice patch of Jerome Gardou improves palette when VBEMP & inbuilt Mesa is used for Diablo II, MS Age Of Empires 1, Anno 1602 to the state we had in SVN r75060 and below. We already committed this fix into 0.4.8-release before.
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: Native DirectDraw implementation
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* FILE: win32ss/reactx/ntddraw/d3dkmt.c
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* PROGRAMER: Sebastian Gasiorek (sebastian.gasiorek@reactos.com)
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*/
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#include <win32k.h>
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#include <debug.h>
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DWORD
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APIENTRY
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NtGdiDdDDICreateDCFromMemory(D3DKMT_CREATEDCFROMMEMORY *desc)
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{
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PSURFACE psurf;
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HDC hDC;
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const struct d3dddi_format_info
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{
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D3DDDIFORMAT format;
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unsigned int bit_count;
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DWORD compression;
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unsigned int palette_size;
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DWORD mask_r, mask_g, mask_b;
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} *format = NULL;
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unsigned int i;
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static const struct d3dddi_format_info format_info[] =
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{
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{ D3DDDIFMT_R8G8B8, 24, BI_RGB, 0, 0x00000000, 0x00000000, 0x00000000 },
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{ D3DDDIFMT_A8R8G8B8, 32, BI_RGB, 0, 0x00000000, 0x00000000, 0x00000000 },
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{ D3DDDIFMT_X8R8G8B8, 32, BI_RGB, 0, 0x00000000, 0x00000000, 0x00000000 },
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{ D3DDDIFMT_R5G6B5, 16, BI_BITFIELDS, 0, 0x0000f800, 0x000007e0, 0x0000001f },
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{ D3DDDIFMT_X1R5G5B5, 16, BI_BITFIELDS, 0, 0x00007c00, 0x000003e0, 0x0000001f },
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{ D3DDDIFMT_A1R5G5B5, 16, BI_BITFIELDS, 0, 0x00007c00, 0x000003e0, 0x0000001f },
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{ D3DDDIFMT_A4R4G4B4, 16, BI_BITFIELDS, 0, 0x00000f00, 0x000000f0, 0x0000000f },
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{ D3DDDIFMT_X4R4G4B4, 16, BI_BITFIELDS, 0, 0x00000f00, 0x000000f0, 0x0000000f },
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{ D3DDDIFMT_P8, 8, BI_RGB, 256, 0x00000000, 0x00000000, 0x00000000 },
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};
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if (!desc)
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return STATUS_INVALID_PARAMETER;
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if (!desc->pMemory)
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return STATUS_INVALID_PARAMETER;
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for (i = 0; i < sizeof(format_info) / sizeof(*format_info); ++i)
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{
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if (format_info[i].format == desc->Format)
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{
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format = &format_info[i];
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break;
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}
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}
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if (!format)
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return STATUS_INVALID_PARAMETER;
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if (desc->Width > (UINT_MAX & ~3) / (format->bit_count / 8) ||
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!desc->Pitch || desc->Pitch < (((desc->Width * format->bit_count + 31) >> 3) & ~3) ||
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!desc->Height || desc->Height > UINT_MAX / desc->Pitch)
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{
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return STATUS_INVALID_PARAMETER;
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}
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if (!desc->hDeviceDc || !(hDC = NtGdiCreateCompatibleDC(desc->hDeviceDc)))
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{
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return STATUS_INVALID_PARAMETER;
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}
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/* Allocate a surface */
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psurf = SURFACE_AllocSurface(STYPE_BITMAP,
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desc->Width,
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desc->Height,
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BitmapFormat(format->bit_count, format->compression),
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BMF_TOPDOWN | BMF_NOZEROINIT,
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desc->Pitch,
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0,
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desc->pMemory);
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/* Mark as API bitmap */
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psurf->flags |= (DDB_SURFACE | API_BITMAP);
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desc->hDc = hDC;
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/* Get the handle for the bitmap */
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desc->hBitmap = (HBITMAP)psurf->SurfObj.hsurf;
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/* Allocate a palette for this surface */
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if (format->bit_count <= 8)
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{
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PPALETTE palette = PALETTE_AllocPalette(PAL_INDEXED, 1 << format->bit_count, NULL, 0, 0, 0);
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if (palette)
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{
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SURFACE_vSetPalette(psurf, palette);
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PALETTE_ShareUnlockPalette(palette);
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}
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}
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/* Unlock the surface and return */
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SURFACE_UnlockSurface(psurf);
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NtGdiSelectBitmap(desc->hDc, desc->hBitmap);
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return STATUS_SUCCESS;
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}
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DWORD
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APIENTRY
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NtGdiDdDDIDestroyDCFromMemory(const D3DKMT_DESTROYDCFROMMEMORY *desc)
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{
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if (!desc)
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return STATUS_INVALID_PARAMETER;
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if (GDI_HANDLE_GET_TYPE(desc->hDc) != GDI_OBJECT_TYPE_DC ||
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GDI_HANDLE_GET_TYPE(desc->hBitmap) != GDI_OBJECT_TYPE_BITMAP)
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return STATUS_INVALID_PARAMETER;
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NtGdiDeleteObjectApp(desc->hBitmap);
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NtGdiDeleteObjectApp(desc->hDc);
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return STATUS_SUCCESS;
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}
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