radeon: Fix software fallbacks with KMS on big endian.

2 files changed, 215 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/common/spantmp2.h b/src/mesa/drivers/dri/common/spantmp2.h
index 89c815722f..dd5e29f8ce 100644
--- a/src/mesa/drivers/dri/common/spantmp2.h
+++ b/src/mesa/drivers/dri/common/spantmp2.h
@@ -82,6 +82,71 @@
       rgba[3] = 0xff;							\
    } while (0)
 
+#elif (SPANTMP_PIXEL_FMT == GL_RGB)  && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5_REV)
+
+/**
+ ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+  p = PACK_COLOR_565_REV( color[0], color[1], color[2] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a )				\
+   PUT_VALUE(_x, _y, PACK_COLOR_565_REV( r, g, b ))
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y )					\
+   do {									\
+      GLushort p = bswap_16(GET_VALUE(_x, _y));                         \
+      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)
+
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA)  && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+   p = PACK_COLOR_4444_REV(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a )				\
+   PUT_VALUE(_x, _y, PACK_COLOR_4444_REV(a, r, g, b))			\
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y )					\
+   do {									\
+      GLushort p = GET_VALUE(_x, _y);					\
+      rgba[0] = ((p >> 0) & 0xf) * 0x11;				\
+      rgba[1] = ((p >> 12) & 0xf) * 0x11;				\
+      rgba[2] = ((p >> 4) & 0xf) * 0x11;				\
+      rgba[3] = ((p >> 8) & 0xf) * 0x11;				\
+   } while (0)
+
+
 #elif (SPANTMP_PIXEL_FMT == GL_BGRA)  && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_4_4_4_4_REV)
 
 /**
@@ -147,6 +212,38 @@
       rgba[3] = ((p >> 15) & 0x1) * 0xff;				\
    } while (0)
 
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA)  && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_1_5_5_5)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLushort *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLushort *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+#define INIT_MONO_PIXEL(p, color) \
+   p = PACK_COLOR_1555_REV(color[3], color[0], color[1], color[2])
+
+#define WRITE_RGBA( _x, _y, r, g, b, a )				\
+   PUT_VALUE(_x, _y, PACK_COLOR_1555_REV(a, r, g, b))			\
+
+#define WRITE_PIXEL( _x, _y, p ) PUT_VALUE(_x, _y, p)
+
+#define READ_RGBA( rgba, _x, _y )					\
+   do {									\
+      GLushort p = bswap_16(GET_VALUE(_x, _y));                         \
+      rgba[0] = ((p >> 7) & 0xf8) * 255 / 0xf8;				\
+      rgba[1] = ((p >> 2) & 0xf8) * 255 / 0xf8;				\
+      rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8;				\
+      rgba[3] = ((p >> 15) & 0x1) * 0xff;				\
+   } while (0)
+
 #elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)
 
 /**
@@ -202,6 +299,61 @@
      } while (0)
 # endif
 
+#elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8)
+
+/**
+ ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8
+ **/
+
+#ifndef GET_VALUE
+#ifndef GET_PTR
+#define GET_PTR(_x, _y) (     buf + (_x) * 4 + (_y) * pitch)
+#endif
+
+#define GET_VALUE(_x, _y) *(volatile GLuint *)(GET_PTR(_x, _y))
+#define PUT_VALUE(_x, _y, _v) *(volatile GLuint *)(GET_PTR(_x, _y)) = (_v)
+#endif /* GET_VALUE */
+
+# define INIT_MONO_PIXEL(p, color)                       \
+     p = PACK_COLOR_8888(color[2], color[1], color[0], color[3]) 
+
+# define WRITE_RGBA(_x, _y, r, g, b, a)                                 \
+   PUT_VALUE(_x, _y, ((r << 8) |					\
+		      (g << 16) |					\
+		      (b << 24) |					\
+		      (a << 0)))
+
+#define WRITE_PIXEL(_x, _y, p) PUT_VALUE(_x, _y, p)
+
+# if defined( USE_X86_ASM )
+#  define READ_RGBA(rgba, _x, _y)                                       \
+    do {                                                                \
+       GLuint p = GET_VALUE(_x, _y);					\
+       __asm__ __volatile__( "rorl $8, %0"				\
+				: "=r" (p) : "0" (p) );                 \
+       ((GLuint *)rgba)[0] = p;                                         \
+    } while (0)
+# elif defined( MESA_BIG_ENDIAN )
+    /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single
+     * rotlwi instruction.  It also produces good code on SPARC.
+     */
+#  define READ_RGBA( rgba, _x, _y )				        \
+     do {								\
+        GLuint p = CPU_TO_LE32(GET_VALUE(_x, _y));                      \
+        GLuint t = p;                                                   \
+        *((uint32_t *) rgba) = (t >> 24) | (p << 8);                    \
+     } while (0)
+# else
+#  define READ_RGBA( rgba, _x, _y )				        \
+     do {								\
+        GLuint p = GET_VALUE(_x, _y);					\
+	rgba[0] = (p >>  8) & 0xff;					\
+	rgba[1] = (p >> 16) & 0xff;					\
+	rgba[2] = (p >> 24) & 0xff;					\
+	rgba[3] = (p >>  0) & 0xff;					\
+     } while (0)
+# endif
+
 #else
 #error SPANTMP_PIXEL_FMT must be set to a valid value!
 #endif
diff --git a/src/mesa/drivers/dri/radeon/radeon_span.c b/src/mesa/drivers/dri/radeon/radeon_span.c
index 2bc7d31254..30a8762586 100644
--- a/src/mesa/drivers/dri/radeon/radeon_span.c
+++ b/src/mesa/drivers/dri/radeon/radeon_span.c
@@ -41,6 +41,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
 #include "main/glheader.h"
+#include "main/texformat.h"
 #include "swrast/swrast.h"
 
 #include "radeon_common.h"
@@ -400,6 +401,18 @@ static GLubyte *radeon_ptr_2byte_8x2(const struct radeon_renderbuffer * rrb,
 #endif
 #include "spantmp2.h"
 
+#define SPANTMP_PIXEL_FMT GL_RGB
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5_REV
+
+#define TAG(x)    radeon##x##_RGB565_REV
+#define TAG2(x,y) radeon##x##_RGB565_REV##y
+#if defined(RADEON_R600)
+#define GET_PTR(X,Y) r600_ptr_color(rrb, (X) + x_off, (Y) + y_off)
+#else
+#define GET_PTR(X,Y) radeon_ptr_2byte_8x2(rrb, (X) + x_off, (Y) + y_off)
+#endif
+#include "spantmp2.h"
+
 /* 16 bit, ARGB1555 color spanline and pixel functions
  */
 #define SPANTMP_PIXEL_FMT GL_BGRA
@@ -414,6 +427,14 @@ static GLubyte *radeon_ptr_2byte_8x2(const struct radeon_renderbuffer * rrb,
 #endif
 #include "spantmp2.h"
 
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_1_5_5_5
+
+#define TAG(x)    radeon##x##_ARGB1555_REV
+#define TAG2(x,y) radeon##x##_ARGB1555_REV##y
+#define GET_PTR(X,Y) radeon_ptr_2byte_8x2(rrb, (X) + x_off, (Y) + y_off)
+#include "spantmp2.h"
+
 /* 16 bit, RGBA4 color spanline and pixel functions
  */
 #define SPANTMP_PIXEL_FMT GL_BGRA
@@ -428,6 +449,14 @@ static GLubyte *radeon_ptr_2byte_8x2(const struct radeon_renderbuffer * rrb,
 #endif
 #include "spantmp2.h"
 
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_4_4_4_4
+
+#define TAG(x)    radeon##x##_ARGB4444_REV
+#define TAG2(x,y) radeon##x##_ARGB4444_REV##y
+#define GET_PTR(X,Y) radeon_ptr_2byte_8x2(rrb, (X) + x_off, (Y) + y_off)
+#include "spantmp2.h"
+
 /* 32 bit, xRGB8888 color spanline and pixel functions
  */
 #define SPANTMP_PIXEL_FMT GL_BGRA
@@ -472,6 +501,30 @@ static GLubyte *radeon_ptr_2byte_8x2(const struct radeon_renderbuffer * rrb,
 #endif
 #include "spantmp2.h"
 
+/* 32 bit, BGRx8888 color spanline and pixel functions
+ */
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8
+
+#define TAG(x)    radeon##x##_BGRx8888
+#define TAG2(x,y) radeon##x##_BGRx8888##y
+#define GET_VALUE(_x, _y) ((*(GLuint*)(radeon_ptr_4byte(rrb, _x + x_off, _y + y_off)) | 0x000000ff))
+#define PUT_VALUE(_x, _y, d) { \
+   GLuint *_ptr = (GLuint*)radeon_ptr_4byte( rrb, _x + x_off, _y + y_off );		\
+   *_ptr = d;								\
+} while (0)
+#include "spantmp2.h"
+
+/* 32 bit, BGRA8888 color spanline and pixel functions
+ */
+#define SPANTMP_PIXEL_FMT GL_BGRA
+#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8
+
+#define TAG(x)    radeon##x##_BGRA8888
+#define TAG2(x,y) radeon##x##_BGRA8888##y
+#define GET_PTR(X,Y) radeon_ptr_4byte(rrb, (X) + x_off, (Y) + y_off)
+#include "spantmp2.h"
+
 /* ================================================================
  * Depth buffer
  */
@@ -848,14 +901,24 @@ static void radeonSetSpanFunctions(struct radeon_renderbuffer *rrb)
 {
 	if (rrb->base.Format == MESA_FORMAT_RGB565) {
 		radeonInitPointers_RGB565(&rrb->base);
+	} else if (rrb->base.Format == MESA_FORMAT_RGB565_REV) {
+		radeonInitPointers_RGB565_REV(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_XRGB8888) {
 		radeonInitPointers_xRGB8888(&rrb->base);
+        } else if (rrb->base.Format == MESA_FORMAT_XRGB8888_REV) {
+		radeonInitPointers_BGRx8888(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_ARGB8888) {
 		radeonInitPointers_ARGB8888(&rrb->base);
+        } else if (rrb->base.Format == MESA_FORMAT_ARGB8888_REV) {
+		radeonInitPointers_BGRA8888(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_ARGB4444) {
 		radeonInitPointers_ARGB4444(&rrb->base);
+	} else if (rrb->base.Format == MESA_FORMAT_ARGB4444_REV) {
+		radeonInitPointers_ARGB4444_REV(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_ARGB1555) {
 		radeonInitPointers_ARGB1555(&rrb->base);
+	} else if (rrb->base.Format == MESA_FORMAT_ARGB1555_REV) {
+		radeonInitPointers_ARGB1555_REV(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_Z16) {
 		radeonInitDepthPointers_z16(&rrb->base);
 	} else if (rrb->base.Format == MESA_FORMAT_X8_Z24) {