Add support for optimized versions of the code underlying ReadPixels

(and DrawPixels).  The R200, R128, and Unichrome drivers get support
in this commit.  Other drivers would be easy enough to add for people
that have the cards.

The DRI (CVS) build will need to be updated to account for the new
source files.

1 files changed, 8 insertions, 45 deletions

diff --git a/src/mesa/drivers/dri/unichrome/via_span.c b/src/mesa/drivers/dri/unichrome/via_span.c
index 693b6de..3a747a3 100644
--- a/src/mesa/drivers/dri/unichrome/via_span.c
+++ b/src/mesa/drivers/dri/unichrome/via_span.c
@@ -204,19 +204,6 @@
 #undef LOCAL_VARS
 #undef LOCAL_DEPTH_VARS
  
-/*=* [DBG] csmash : fix options worng position *=*/
-/*#define LOCAL_VARS                                    \
-    __DRIdrawablePrivate *dPriv = vmesa->driDrawable;   \
-    GLuint pitch = vmesa->drawPitch;                    \
-    GLuint height = dPriv->h;                           \
-    GLuint p;                                           \
-    char *buf = (char *)(vmesa->drawMap +               \
-                         dPriv->x * 4 +                 \
-                         dPriv->y * pitch);             \
-    char *read_buf = (char *)(vmesa->readMap +          \
-                              dPriv->x * 4 +            \
-                              dPriv->y * pitch);        \
-    (void)read_buf; (void)buf; (void)p*/
 #define LOCAL_VARS                                                   	\
     __DRIdrawablePrivate *dPriv = vmesa->driDrawable;                	\
     GLuint pitch = vmesa->drawPitch;                                 	\
@@ -237,33 +224,15 @@
                               dPriv->y * pitch);                     	\
     }
 
+#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
 
-#undef INIT_MONO_PIXEL
-#define INIT_MONO_PIXEL(p, color)                       \
-    p = PACK_COLOR_8888(color[3], color[0], color[1], color[2]) 
-    
-#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] = 255;                                                  \
-    } while (0)
+#define TAG(x)    via##x##_8888
+#define TAG2(x,y) via##x##_8888##y
+#include "spantmp2.h"
 
-#define TAG(x) via##x##_8888
-#include "spantmp.h"
-/*#include "via_spantmp.h"*/
 
 /* 16 bit depthbuffer functions.
  */
@@ -367,13 +336,7 @@ void viaInitSpanFuncs(GLcontext *ctx)
 	swdd->ReadRGBAPixels = viaReadRGBAPixels_565;
     }
     else if (vmesa->viaScreen->bitsPerPixel == 0x20) {
-	swdd->WriteRGBASpan = viaWriteRGBASpan_8888;
-	swdd->WriteRGBSpan = viaWriteRGBSpan_8888;
-	swdd->WriteMonoRGBASpan = viaWriteMonoRGBASpan_8888;
-	swdd->WriteRGBAPixels = viaWriteRGBAPixels_8888;
-	swdd->WriteMonoRGBAPixels = viaWriteMonoRGBAPixels_8888;
-	swdd->ReadRGBASpan = viaReadRGBASpan_8888;
-	swdd->ReadRGBAPixels = viaReadRGBAPixels_8888;
+	viaInitPointers_8888( swdd );
     }
     else 
 	ASSERT(0);