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Convert MGA driver to use new spantmp2.h interface.

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This commit is contained in:
Ian Romanick 2004-10-15 23:00:52 +00:00
parent 5696710f96
commit ea6786b453
1 changed files with 27 additions and 70 deletions
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97
src/mesa/drivers/dri/mga/mgaspan.c
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@ -109,70 +109,31 @@
/* 16 bit, 565 rgb color spanline and pixel functions
*/
#define Y_FLIP(_y) (height - _y - 1)
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_565( color[0], color[1], color[2] )
#define WRITE_RGBA( _x, _y, r, g, b, a ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = ( (((int)r & 0xf8) << 8) | \
(((int)g & 0xfc) << 3) | \
(((int)b & 0xf8) >> 3))
#define WRITE_PIXEL( _x, _y, p ) \
*(GLushort *)(buf + _x*2 + _y*pitch) = p
#define READ_RGBA( rgba, _x, _y ) \
do { \
GLushort p = *(GLushort *)(read_buf + _x*2 + _y*pitch); \
rgba[0] = (((p >> 11) & 0x1f) * 255) / 31; \
rgba[1] = (((p >> 5) & 0x3f) * 255) / 63; \
rgba[2] = (((p >> 0) & 0x1f) * 255) / 31; \
rgba[3] = 255; \
} while(0)
#define TAG(x) mga##x##_565
#include "spantmp.h"
/* 32 bit, 8888 argb color spanline and pixel functions
/* 16 bit, RGB565 color spanline and pixel functions
*/
#undef INIT_MONO_PIXEL
#define INIT_MONO_PIXEL(p, color) \
p = PACK_COLOR_8888( color[3], color[0], color[1], color[2] )
#define GET_SRC_PTR(_x, _y) (read_buf + _x * 2 + _y * pitch)
#define GET_DST_PTR(_x, _y) ( buf + _x * 2 + _y * pitch)
#define SPANTMP_PIXEL_FMT GL_RGB
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
#define TAG(x) mga##x##_565
#define TAG2(x,y) mga##x##_565##y
#include "spantmp2.h"
#define WRITE_RGBA(_x, _y, r, g, b, a) \
*(GLuint *)(buf + _x*4 + _y*pitch) = ((r << 16) | \
(g << 8) | \
(b << 0) | \
(a << 24) )
#define WRITE_PIXEL(_x, _y, p) \
*(GLuint *)(buf + _x*4 + _y*pitch) = p
#define READ_RGBA(rgba, _x, _y) \
do { \
GLuint p = *(GLuint *)(read_buf + _x*4 + _y*pitch); \
rgba[0] = (p >> 16) & 0xff; \
rgba[1] = (p >> 8) & 0xff; \
rgba[2] = (p >> 0) & 0xff; \
rgba[3] = 0xff; \
} while (0)
#define TAG(x) mga##x##_8888
#include "spantmp.h"
/* 32 bit, ARGB8888 color spanline and pixel functions
*/
#define GET_SRC_PTR(_x, _y) (read_buf + _x * 4 + _y * pitch)
#define GET_DST_PTR(_x, _y) ( buf + _x * 4 + _y * pitch)
#define SPANTMP_PIXEL_FMT GL_BGRA
#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
#define TAG(x) mga##x##_8888
#define TAG2(x,y) mga##x##_8888##y
#include "spantmp2.h"
/* 16 bit depthbuffer functions.
@ -260,6 +221,14 @@ static void mgaDDSetBuffer(GLcontext *ctx, GLframebuffer *buffer,
? mmesa->driDrawable : mmesa->driReadable;
}
/**
* Initialize the driver callbacks for the read / write span functions.
*
* \bug
* To really support RGB888 and RGBA8888 visuals, we need separate read and
* write routines for 888 and 8888. We also need to determine whether or not
* the visual has destination alpha.
*/
void mgaDDInitSpanFuncs( GLcontext *ctx )
{
mgaContextPtr mmesa = MGA_CONTEXT(ctx);
@ -269,13 +238,7 @@ void mgaDDInitSpanFuncs( GLcontext *ctx )
switch (mmesa->mgaScreen->cpp) {
case 2:
swdd->WriteRGBASpan = mgaWriteRGBASpan_565;
swdd->WriteRGBSpan = mgaWriteRGBSpan_565;
swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_565;
swdd->WriteRGBAPixels = mgaWriteRGBAPixels_565;
swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_565;
swdd->ReadRGBASpan = mgaReadRGBASpan_565;
swdd->ReadRGBAPixels = mgaReadRGBAPixels_565;
mgaInitPointers_565( swdd );
swdd->ReadDepthSpan = mgaReadDepthSpan_16;
swdd->WriteDepthSpan = mgaWriteDepthSpan_16;
@ -284,13 +247,7 @@ void mgaDDInitSpanFuncs( GLcontext *ctx )
break;
case 4:
swdd->WriteRGBASpan = mgaWriteRGBASpan_8888;
swdd->WriteRGBSpan = mgaWriteRGBSpan_8888;
swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_8888;
swdd->WriteRGBAPixels = mgaWriteRGBAPixels_8888;
swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_8888;
swdd->ReadRGBASpan = mgaReadRGBASpan_8888;
swdd->ReadRGBAPixels = mgaReadRGBAPixels_8888;
mgaInitPointers_8888( swdd );
if (!mmesa->hw_stencil) {
swdd->ReadDepthSpan = mgaReadDepthSpan_32;