[WIN32SS] Implement D3DKMT{Create,Destroy}DCFromMemory. Brought to you by Sebastian...

[reactos.git] / reactos / win32ss / reactx / ntddraw / d3dkmt.c

diff --git a/reactos/win32ss/reactx/ntddraw/d3dkmt.c b/reactos/win32ss/reactx/ntddraw/d3dkmt.c
new file mode 100644 (file)
index 0000000..2dae7ba
--- /dev/null
+++ b/reactos/win32ss/reactx/ntddraw/d3dkmt.c
@@ -0,0 +1,112 @@
+/*
+ * COPYRIGHT:        See COPYING in the top level directory
+ * PROJECT:          ReactOS kernel
+ * PURPOSE:          Native DirectDraw implementation
+ * FILE:             win32ss/reactx/ntddraw/d3dkmt.c
+ * PROGRAMER:        Sebastian Gasiorek (sebastian.gasiorek@reactos.com)
+ */
+
+#include <win32k.h>
+#include <debug.h>
+
+DWORD
+APIENTRY
+NtGdiDdDDICreateDCFromMemory(D3DKMT_CREATEDCFROMMEMORY *desc)
+{
+    PSURFACE psurf;
+    HDC hDC;
+
+    const struct d3dddi_format_info
+    {
+        D3DDDIFORMAT format;
+        unsigned int bit_count;
+        DWORD compression;
+        unsigned int palette_size;
+        DWORD mask_r, mask_g, mask_b;
+    } *format = NULL;
+    unsigned int i;
+
+    static const struct d3dddi_format_info format_info[] =
+    {
+        { D3DDDIFMT_R8G8B8,   24, BI_RGB,       0,   0x00000000, 0x00000000, 0x00000000 },
+        { D3DDDIFMT_A8R8G8B8, 32, BI_RGB,       0,   0x00000000, 0x00000000, 0x00000000 },
+        { D3DDDIFMT_X8R8G8B8, 32, BI_RGB,       0,   0x00000000, 0x00000000, 0x00000000 },
+        { D3DDDIFMT_R5G6B5,   16, BI_BITFIELDS, 0,   0x0000f800, 0x000007e0, 0x0000001f },
+        { D3DDDIFMT_X1R5G5B5, 16, BI_BITFIELDS, 0,   0x00007c00, 0x000003e0, 0x0000001f },
+        { D3DDDIFMT_A1R5G5B5, 16, BI_BITFIELDS, 0,   0x00007c00, 0x000003e0, 0x0000001f },
+        { D3DDDIFMT_A4R4G4B4, 16, BI_BITFIELDS, 0,   0x00000f00, 0x000000f0, 0x0000000f },
+        { D3DDDIFMT_X4R4G4B4, 16, BI_BITFIELDS, 0,   0x00000f00, 0x000000f0, 0x0000000f },
+        { D3DDDIFMT_P8,       8,  BI_RGB,       256, 0x00000000, 0x00000000, 0x00000000 },
+    };
+
+    if (!desc) 
+        return STATUS_INVALID_PARAMETER;
+
+    if (!desc->pMemory) 
+        return STATUS_INVALID_PARAMETER;
+
+    for (i = 0; i < sizeof(format_info) / sizeof(*format_info); ++i)
+    {
+        if (format_info[i].format == desc->Format)
+        {
+            format = &format_info[i];
+            break;
+        }
+    }
+
+    if (!format) 
+        return STATUS_INVALID_PARAMETER;
+
+    if (desc->Width > (UINT_MAX & ~3) / (format->bit_count / 8) ||
+        !desc->Pitch || desc->Pitch < (((desc->Width * format->bit_count + 31) >> 3) & ~3) ||
+        !desc->Height || desc->Height > UINT_MAX / desc->Pitch)
+    {
+        return STATUS_INVALID_PARAMETER;
+    }
+
+    if (!desc->hDeviceDc || !(hDC = NtGdiCreateCompatibleDC(desc->hDeviceDc)))
+    {
+        return STATUS_INVALID_PARAMETER;
+    }
+
+    /* Allocate a surface */
+    psurf = SURFACE_AllocSurface(STYPE_BITMAP,
+                                 desc->Width,
+                                 desc->Height,
+                                 BitmapFormat(format->bit_count, format->compression),
+                                 BMF_TOPDOWN | BMF_NOZEROINIT,
+                                 desc->Pitch,
+                                 0,
+                                 desc->pMemory);
+
+    /* Mark as API bitmap */
+    psurf->flags |= (DDB_SURFACE | API_BITMAP);
+
+    desc->hDc = hDC;
+    /* Get the handle for the bitmap */
+    desc->hBitmap = (HBITMAP)psurf->SurfObj.hsurf;
+
+    /* Unlock the surface and return */
+    SURFACE_UnlockSurface(psurf);
+
+    NtGdiSelectBitmap(desc->hDc, desc->hBitmap);
+
+    return STATUS_SUCCESS;
+}
+
+DWORD
+APIENTRY
+NtGdiDdDDIDestroyDCFromMemory(const D3DKMT_DESTROYDCFROMMEMORY *desc)
+{
+    if (!desc) 
+        return STATUS_INVALID_PARAMETER;
+
+    if (GDI_HANDLE_GET_TYPE(desc->hDc)  != GDI_OBJECT_TYPE_DC ||
+        GDI_HANDLE_GET_TYPE(desc->hBitmap) != GDI_OBJECT_TYPE_BITMAP) 
+        return STATUS_INVALID_PARAMETER;
+
+    NtGdiDeleteObjectApp(desc->hBitmap);
+    NtGdiDeleteObjectApp(desc->hDc);
+
+    return STATUS_SUCCESS;
+}