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wined3d: Simplify wined3d_format_convert_from_float().

This commit is contained in:
Henri Verbeet 2010-08-26 19:05:17 +02:00 committed by Alexandre Julliard
parent 38137d7ce2
commit 3b4d9ae112
1 changed files with 47 additions and 104 deletions
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151
dlls/wined3d/utils.c
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@ -2557,121 +2557,64 @@ BOOL getDepthStencilBits(const struct wined3d_format_desc *format_desc, short *d
return TRUE; return TRUE;
} }
/* Note: It's the caller's responsibility to ensure values can be expressed
* in the requested format. UNORM formats for example can only express values
* in the range 0.0f -> 1.0f. */
DWORD wined3d_format_convert_from_float(const struct wined3d_format_desc *format, const WINED3DCOLORVALUE *color) DWORD wined3d_format_convert_from_float(const struct wined3d_format_desc *format, const WINED3DCOLORVALUE *color)
{ {
enum wined3d_format_id destfmt = format->id; static const struct
unsigned int r, g, b, a; {
DWORD ret; enum wined3d_format_id format_id;
float r_mul;
float g_mul;
float b_mul;
float a_mul;
BYTE r_shift;
BYTE g_shift;
BYTE b_shift;
BYTE a_shift;
}
conv[] =
{
{WINED3DFMT_B8G8R8A8_UNORM, 255.0f, 255.0f, 255.0f, 255.0f, 16, 8, 0, 24},
{WINED3DFMT_B8G8R8X8_UNORM, 255.0f, 255.0f, 255.0f, 255.0f, 16, 8, 0, 24},
{WINED3DFMT_B8G8R8_UNORM, 255.0f, 255.0f, 255.0f, 255.0f, 16, 8, 0, 24},
{WINED3DFMT_B5G6R5_UNORM, 31.0f, 63.0f, 31.0f, 0.0f, 11, 5, 0, 0},
{WINED3DFMT_B5G5R5A1_UNORM, 31.0f, 31.0f, 31.0f, 1.0f, 10, 5, 0, 15},
{WINED3DFMT_B5G5R5X1_UNORM, 31.0f, 31.0f, 31.0f, 1.0f, 10, 5, 0, 15},
{WINED3DFMT_A8_UNORM, 0.0f, 0.0f, 0.0f, 255.0f, 0, 0, 0, 0},
{WINED3DFMT_B4G4R4A4_UNORM, 15.0f, 15.0f, 15.0f, 15.0f, 8, 4, 0, 12},
{WINED3DFMT_B4G4R4X4_UNORM, 15.0f, 15.0f, 15.0f, 15.0f, 8, 4, 0, 12},
{WINED3DFMT_B2G3R3_UNORM, 7.0f, 7.0f, 3.0f, 0.0f, 5, 2, 0, 0},
{WINED3DFMT_R8G8B8A8_UNORM, 255.0f, 255.0f, 255.0f, 255.0f, 0, 8, 16, 24},
{WINED3DFMT_R8G8B8X8_UNORM, 255.0f, 255.0f, 255.0f, 255.0f, 0, 8, 16, 24},
{WINED3DFMT_B10G10R10A2_UNORM, 1023.0f, 1023.0f, 1023.0f, 3.0f, 20, 10, 0, 30},
{WINED3DFMT_R10G10B10A2_UNORM, 1023.0f, 1023.0f, 1023.0f, 3.0f, 0, 10, 20, 30},
};
unsigned int i;
TRACE("Converting color {%.8e %.8e %.8e %.8e} to format %s.\n", TRACE("Converting color {%.8e %.8e %.8e %.8e} to format %s.\n",
color->r, color->g, color->b, color->a, debug_d3dformat(destfmt)); color->r, color->g, color->b, color->a, debug_d3dformat(format->id));
r = (DWORD)((color->r * 255.0f) + 0.5f); for (i = 0; i < sizeof(conv) / sizeof(*conv); ++i)
g = (DWORD)((color->g * 255.0f) + 0.5f);
b = (DWORD)((color->b * 255.0f) + 0.5f);
a = (DWORD)((color->a * 255.0f) + 0.5f);
switch(destfmt)
{ {
case WINED3DFMT_B8G8R8A8_UNORM: DWORD ret;
case WINED3DFMT_B8G8R8X8_UNORM:
case WINED3DFMT_B8G8R8_UNORM:
ret = b;
ret |= g << 8;
ret |= r << 16;
ret |= a << 24;
TRACE("Returning 0x%08x.\n", ret);
return ret;
if (format->id != conv[i].format_id) continue;
case WINED3DFMT_B5G6R5_UNORM: ret = ((DWORD)((color->r * conv[i].r_mul) + 0.5f)) << conv[i].r_shift;
if(r == 0xff && g == 0xff && b == 0xff) return 0xffff; ret |= ((DWORD)((color->g * conv[i].g_mul) + 0.5f)) << conv[i].g_shift;
r = (r * 32) / 256; ret |= ((DWORD)((color->b * conv[i].b_mul) + 0.5f)) << conv[i].b_shift;
g = (g * 64) / 256; ret |= ((DWORD)((color->a * conv[i].a_mul) + 0.5f)) << conv[i].a_shift;
b = (b * 32) / 256;
ret = r << 11;
ret |= g << 5;
ret |= b;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_B5G5R5X1_UNORM: TRACE("Returning 0x%08x.\n", ret);
case WINED3DFMT_B5G5R5A1_UNORM:
a = (a * 2) / 256;
r = (r * 32) / 256;
g = (g * 32) / 256;
b = (b * 32) / 256;
ret = a << 15;
ret |= r << 10;
ret |= g << 5;
ret |= b << 0;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_A8_UNORM: return ret;
TRACE("Returning %08x\n", a);
return a;
case WINED3DFMT_B4G4R4X4_UNORM:
case WINED3DFMT_B4G4R4A4_UNORM:
a = (a * 16) / 256;
r = (r * 16) / 256;
g = (g * 16) / 256;
b = (b * 16) / 256;
ret = a << 12;
ret |= r << 8;
ret |= g << 4;
ret |= b << 0;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_B2G3R3_UNORM:
r = (r * 8) / 256;
g = (g * 8) / 256;
b = (b * 4) / 256;
ret = r << 5;
ret |= g << 2;
ret |= b << 0;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_R8G8B8X8_UNORM:
case WINED3DFMT_R8G8B8A8_UNORM:
ret = a << 24;
ret |= b << 16;
ret |= g << 8;
ret |= r << 0;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_B10G10R10A2_UNORM:
a = (a * 4) / 256;
r = (r * 1024) / 256;
g = (g * 1024) / 256;
b = (b * 1024) / 256;
ret = a << 30;
ret |= r << 20;
ret |= g << 10;
ret |= b << 0;
TRACE("Returning %08x\n", ret);
return ret;
case WINED3DFMT_R10G10B10A2_UNORM:
a = (a * 4) / 256;
r = (r * 1024) / 256;
g = (g * 1024) / 256;
b = (b * 1024) / 256;
ret = a << 30;
ret |= b << 20;
ret |= g << 10;
ret |= r << 0;
TRACE("Returning %08x\n", ret);
return ret;
default:
FIXME("Add a COLORFILL conversion for format %s\n", debug_d3dformat(destfmt));
return 0;
} }
FIXME("Conversion for format %s not implemented.\n", debug_d3dformat(format->id));
return 0;
} }
/* DirectDraw stuff */ /* DirectDraw stuff */