Am 2004.10.13 23:37:12 +0200 schrieb(en) Ian Romanick:
> Michel Dänzer wrote:
> 
> > Anyway, I think we're on a tangent here, as the problem doesn't seem to
> > be PPC specific at all.
> 
> I dug out the Rage 128 that I have for the PC, and it works just fine. 
> glxgears, readpix, all of it. :(
> 
> The PCI ID on on the PC version is 1002:5046, and on the Mac it's 
> 1002:5246.  Could this be a PRO vs. non-PRO issue?  Andreas, what's the 
> PCI ID on your card?  If this isn't an endian problem, my guess is that 
> there's some hardware bug in the non-PRO version that was fixed in the 
> PRO.  It would be like the R200 vs. RV250 texturing bugs. :(
> 

Hm... some more confusion:

0) I updated my "Mesa_orig" tree.

1) Then translated your readpix changes from r200_span.c to radeon_span.c,
and then got the hang with glxgears/readpix.

2) After reboot I "backported" mesa/sources, radeon_span.c etc.
to mesa cvs (including tvertex patch) from before 25.Sep.2004
That worked fine, no hang:
I got 6.6MPixel/second where the old code showed only 3.5Mpixel/second.

My current card: 1002:5157
ATI Technologies Inc Radeon RV200 QW [Radeon 7500] (rev 0).


Could someone else with an R100 test?
see attached patch ( some changes to make mesa compile with gcc2.95.3 omitted)

@Ian:
maybe you could try on your "bad" r128 with an older version of mesa.
Index: Mesa/src/mesa/drivers/dri/radeon/radeon_span.c
===================================================================
RCS file: /cvs/mesa/Mesa/src/mesa/drivers/dri/radeon/radeon_span.c,v
retrieving revision 1.3
diff -u -r1.3 radeon_span.c
--- Mesa/src/mesa/drivers/dri/radeon/radeon_span.c      21 Mar 2004 17:05:04 -0000     
 1.3
+++ Mesa/src/mesa/drivers/dri/radeon/radeon_span.c      14 Oct 2004 11:30:05 -0000
@@ -123,61 +123,27 @@
 
 /* 16 bit, RGB565 color spanline and pixel functions
  */
-#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 >> 8) & 0xf8) * 255 / 0xf8;                                \
-      rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc;                                \
-      rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8;                                \
-      rgba[3] = 0xff;                                                  \
-   } while (0)
-
-#define TAG(x) radeon##x##_RGB565
-#include "spantmp.h"
+#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)    radeon##x##_RGB565
+#define TAG2(x,y) radeon##x##_RGB565##y
+#include "spantmp2.h"
 
 /* 32 bit, ARGB8888 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 WRITE_RGBA( _x, _y, r, g, b, a )                       \
-do {                                                           \
-   *(GLuint *)(buf + _x*4 + _y*pitch) = ((b <<  0) |           \
-                                        (g <<  8) |            \
-                                        (r << 16) |            \
-                                        (a << 24) );           \
-} while (0)
-
-#define WRITE_PIXEL( _x, _y, p )                       \
-do {                                                   \
-   *(GLuint *)(buf + _x*4 + _y*pitch) = p;             \
-} while (0)
-
-#define READ_RGBA( rgba, _x, _y )                              \
-do {                                                           \
-   volatile GLuint *ptr = (volatile GLuint *)(read_buf + _x*4 + _y*pitch); \
-   GLuint p = *ptr;                                    \
-   rgba[0] = (p >> 16) & 0xff;                                 \
-   rgba[1] = (p >>  8) & 0xff;                                 \
-   rgba[2] = (p >>  0) & 0xff;                                 \
-   rgba[3] = (p >> 24) & 0xff;                                 \
-} while (0)
-
-#define TAG(x) radeon##x##_ARGB8888
-#include "spantmp.h"
 
+#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)    radeon##x##_ARGB8888
+#define TAG2(x,y) radeon##x##_ARGB8888##y
+#include "spantmp2.h"
 
 
 /* ================================================================
@@ -363,23 +329,11 @@
 
    switch ( rmesa->radeonScreen->cpp ) {
    case 2:
-      swdd->WriteRGBASpan      = radeonWriteRGBASpan_RGB565;
-      swdd->WriteRGBSpan       = radeonWriteRGBSpan_RGB565;
-      swdd->WriteMonoRGBASpan  = radeonWriteMonoRGBASpan_RGB565;
-      swdd->WriteRGBAPixels    = radeonWriteRGBAPixels_RGB565;
-      swdd->WriteMonoRGBAPixels        = radeonWriteMonoRGBAPixels_RGB565;
-      swdd->ReadRGBASpan       = radeonReadRGBASpan_RGB565;
-      swdd->ReadRGBAPixels      = radeonReadRGBAPixels_RGB565;
+      radeonInitPointers_RGB565( swdd );
       break;
 
    case 4:
-      swdd->WriteRGBASpan      = radeonWriteRGBASpan_ARGB8888;
-      swdd->WriteRGBSpan       = radeonWriteRGBSpan_ARGB8888;
-      swdd->WriteMonoRGBASpan   = radeonWriteMonoRGBASpan_ARGB8888;
-      swdd->WriteRGBAPixels     = radeonWriteRGBAPixels_ARGB8888;
-      swdd->WriteMonoRGBAPixels = radeonWriteMonoRGBAPixels_ARGB8888;
-      swdd->ReadRGBASpan       = radeonReadRGBASpan_ARGB8888;
-      swdd->ReadRGBAPixels      = radeonReadRGBAPixels_ARGB8888;
+      radeonInitPointers_ARGB8888( swdd );
       break;
 
    default:

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