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, 19 insertions, 86 deletions

diff --git a/src/mesa/drivers/dri/r128/r128_span.c b/src/mesa/drivers/dri/r128/r128_span.c
index db2ec44fbf2..b169dc7509e 100644
--- a/src/mesa/drivers/dri/r128/r128_span.c
+++ b/src/mesa/drivers/dri/r128/r128_span.c
@@ -125,85 +125,27 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 /* 16 bit, RGB565 color spanline and pixel functions
  */
-#undef INIT_MONO_PIXEL
-#define INIT_MONO_PIXEL(p, color) \
-  p = R128PACKCOLOR565( 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 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 TAG(x)    r128##x##_RGB565
+#define TAG2(x,y) r128##x##_RGB565##y
+#include "spantmp2.h"
 
-#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 >> 8) & 0xf8;					\
-      rgba[1] = (p >> 3) & 0xfc;					\
-      rgba[2] = (p << 3) & 0xf8;					\
-      rgba[3] = 0xff;							\
-      if ( rgba[0] & 0x08 ) rgba[0] |= 0x07;				\
-      if ( rgba[1] & 0x04 ) rgba[1] |= 0x03;				\
-      if ( rgba[2] & 0x08 ) rgba[2] |= 0x07;				\
-   } while (0)
-
-#define TAG(x) r128##x##_RGB565
-#include "spantmp.h"
-
-#define READ_DEPTH(d, _x, _y)                                                 \
-    d = *(GLushort *)(buf + _x*2 + _y*pitch)
 
 /* 32 bit, ARGB8888 color spanline and pixel functions
  */
-#undef INIT_MONO_PIXEL
-#define INIT_MONO_PIXEL(p, color) \
-  p = R128PACKCOLOR8888( color[0], color[1], color[2], color[3] )
-
-#define WRITE_RGBA( _x, _y, r, g, b, a )				\
-   *(GLuint *)(buf + _x*4 + _y*pitch) = ((b <<  0) |			\
-					 (g <<  8) |			\
-					 (r << 16) |			\
-					 (a << 24) )
+#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 WRITE_PIXEL( _x, _y, p )					\
-   *(GLuint *)(buf + _x*4 + _y*pitch) = p
+#define TAG(x)    r128##x##_ARGB8888
+#define TAG2(x,y) r128##x##_ARGB8888##y
+#include "spantmp2.h"
 
-#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;/*(p >> 24) & 0xff;*/						\
-} while (0)
-
-#define TAG(x) r128##x##_ARGB8888
-#include "spantmp.h"
-
-
-/* 24 bit, RGB888 color spanline and pixel functions */
-#undef INIT_MONO_PIXEL
-#define INIT_MONO_PIXEL(p, color) \
-  p = R128PACKCOLOR888( color[0], color[1], color[2] )
-
-#define WRITE_RGBA(_x, _y, r, g, b, a)                                        \
-    *(GLuint *)(buf + _x*3 + _y*pitch) = ((r << 16) |                         \
-					  (g << 8)  |                         \
-					  (b << 0))
-
-#define WRITE_PIXEL(_x, _y, p)                                                \
-    *(GLuint *)(buf + _x*3 + _y*pitch) = p
-
-#define READ_RGBA(rgba, _x, _y)                                               \
-    do {                                                                      \
-	GLuint p = *(GLuint *)(read_buf + _x*3 + _y*pitch);                   \
-	rgba[0] = (p >> 16) & 0xff;                                           \
-	rgba[1] = (p >> 8)  & 0xff;                                           \
-	rgba[2] = (p >> 0)  & 0xff;                                           \
-	rgba[3] = 0xff;                                                       \
-    } while (0)
 
 /* ================================================================
  * Depth buffer
@@ -211,6 +153,9 @@ do {									\
 
 /* 16-bit depth buffer functions
  */
+#define READ_DEPTH(d, _x, _y)                                           \
+    d = *(GLushort *)(buf + _x*2 + _y*pitch)
+
 #define WRITE_DEPTH_SPAN()						\
    r128WriteDepthSpanLocked( rmesa, n,					\
 			     x + dPriv->x,				\
@@ -423,23 +368,11 @@ void r128DDInitSpanFuncs( GLcontext *ctx )
 
    switch ( rmesa->r128Screen->cpp ) {
    case 2:
-      swdd->WriteRGBASpan	= r128WriteRGBASpan_RGB565;
-      swdd->WriteRGBSpan	= r128WriteRGBSpan_RGB565;
-      swdd->WriteMonoRGBASpan	= r128WriteMonoRGBASpan_RGB565;
-      swdd->WriteRGBAPixels	= r128WriteRGBAPixels_RGB565;
-      swdd->WriteMonoRGBAPixels	= r128WriteMonoRGBAPixels_RGB565;
-      swdd->ReadRGBASpan	= r128ReadRGBASpan_RGB565;
-      swdd->ReadRGBAPixels	= r128ReadRGBAPixels_RGB565;
+      r128InitPointers_RGB565( swdd );
       break;
 
    case 4:
-      swdd->WriteRGBASpan	= r128WriteRGBASpan_ARGB8888;
-      swdd->WriteRGBSpan	= r128WriteRGBSpan_ARGB8888;
-      swdd->WriteMonoRGBASpan	= r128WriteMonoRGBASpan_ARGB8888;
-      swdd->WriteRGBAPixels	= r128WriteRGBAPixels_ARGB8888;
-      swdd->WriteMonoRGBAPixels	= r128WriteMonoRGBAPixels_ARGB8888;
-      swdd->ReadRGBASpan	= r128ReadRGBASpan_ARGB8888;
-      swdd->ReadRGBAPixels	= r128ReadRGBAPixels_ARGB8888;
+      r128InitPointers_ARGB8888( swdd );
       break;
 
    default: