Merge git://proxy01.pd.intel.com:9419/git/mesa/mesa into crestline

23 files changed, 168 insertions, 152 deletions

diff --git a/src/mesa/drivers/dri/i915/i915_reg.h b/src/mesa/drivers/dri/i915/i915_reg.h
index 3ba792a2342..694cd4c8c3c 100644
--- a/src/mesa/drivers/dri/i915/i915_reg.h
+++ b/src/mesa/drivers/dri/i915/i915_reg.h
@@ -138,7 +138,7 @@
 
 
 /* 3DSTATE_DEPTH_SUBRECT_DISABLE, p160 */
-#define _3DSTATE_DEPTH_SUBRECT_DISABLE    (CMD_3D | (0x1c<<24) | (0x11<19) | 0x2)
+#define _3DSTATE_DEPTH_SUBRECT_DISABLE    (CMD_3D | (0x1c<<24) | (0x11<<19) | 0x2)
 
 /* p161 */
 #define _3DSTATE_DST_BUF_VARS_CMD	(CMD_3D | (0x1d<<24) | (0x85<<16))
diff --git a/src/mesa/drivers/dri/i915/i915_state.c b/src/mesa/drivers/dri/i915/i915_state.c
index fd11e10652e..5e00e6597b0 100644
--- a/src/mesa/drivers/dri/i915/i915_state.c
+++ b/src/mesa/drivers/dri/i915/i915_state.c
@@ -813,7 +813,7 @@ static void i915_init_packets( i915ContextPtr i915 )
 				       I1_LOAD_S(4) |
 				       I1_LOAD_S(5) |
 				       I1_LOAD_S(6) | 
-				       (4));
+				       (3));
       i915->state.Ctx[I915_CTXREG_LIS2] = 0;
       i915->state.Ctx[I915_CTXREG_LIS4] = 0;
       i915->state.Ctx[I915_CTXREG_LIS5] = 0;
diff --git a/src/mesa/drivers/dri/i915/i915_vtbl.c b/src/mesa/drivers/dri/i915/i915_vtbl.c
index 2936a0fb721..b533e153beb 100644
--- a/src/mesa/drivers/dri/i915/i915_vtbl.c
+++ b/src/mesa/drivers/dri/i915/i915_vtbl.c
@@ -180,7 +180,7 @@ static void i915_emit_invarient_state( intelContextPtr intel )
     */
    OUT_BATCH(_3DSTATE_LOAD_STATE_IMMEDIATE_1 | 
 	     I1_LOAD_S(3) |
-	     (1));
+	     (0));
    OUT_BATCH(0);
  
    /* XXX: Use this */
diff --git a/src/mesa/drivers/dri/i915tex/i915_reg.h b/src/mesa/drivers/dri/i915tex/i915_reg.h
index 04b199905c1..34c68214056 100644
--- a/src/mesa/drivers/dri/i915tex/i915_reg.h
+++ b/src/mesa/drivers/dri/i915tex/i915_reg.h
@@ -138,7 +138,7 @@
 
 
 /* 3DSTATE_DEPTH_SUBRECT_DISABLE, p160 */
-#define _3DSTATE_DEPTH_SUBRECT_DISABLE    (CMD_3D | (0x1c<<24) | (0x11<19) | 0x2)
+#define _3DSTATE_DEPTH_SUBRECT_DISABLE    (CMD_3D | (0x1c<<24) | (0x11<<19) | 0x2)
 
 /* p161 */
 #define _3DSTATE_DST_BUF_VARS_CMD	(CMD_3D | (0x1d<<24) | (0x85<<16))
diff --git a/src/mesa/drivers/dri/i965/brw_tex.c b/src/mesa/drivers/dri/i965/brw_tex.c
index c3ffa9e6577..467aec64a01 100644
--- a/src/mesa/drivers/dri/i965/brw_tex.c
+++ b/src/mesa/drivers/dri/i965/brw_tex.c
@@ -148,18 +148,25 @@ brwChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
          return &_mesa_texformat_ycbcr_rev;
 
    case GL_COMPRESSED_RGB_FXT1_3DFX:
+       return &_mesa_texformat_rgb_fxt1;
    case GL_COMPRESSED_RGBA_FXT1_3DFX:
-     return &_mesa_texformat_rgb_fxt1;
+       return &_mesa_texformat_rgba_fxt1;
 
    case GL_RGB_S3TC:
    case GL_RGB4_S3TC:
+   case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+       return &_mesa_texformat_rgb_dxt1;
+
+   case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+       return &_mesa_texformat_rgba_dxt1;
+
    case GL_RGBA_S3TC:
    case GL_RGBA4_S3TC:
    case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+       return &_mesa_texformat_rgba_dxt3;
+
    case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
-   case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
-   case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
-     return &_mesa_texformat_rgb_dxt1; /* there is no rgba support? */
+       return &_mesa_texformat_rgba_dxt5;
 
    case GL_DEPTH_COMPONENT:
    case GL_DEPTH_COMPONENT16:
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c b/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c
index 73c1f7c2a53..211483dc027 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_shader_0.c
@@ -263,6 +263,23 @@ pass0_make_mask(GLuint mesa_mask)
 	return mask;
 }
 
+static GLboolean
+pass0_opcode_is_tex(enum prog_opcode op)
+{
+	switch (op) {
+	case OPCODE_TEX:
+	case OPCODE_TXB:
+	case OPCODE_TXD:
+	case OPCODE_TXL:
+	case OPCODE_TXP:
+		return GL_TRUE;
+	default:
+		break;
+	}
+
+	return GL_FALSE;
+}
+
 static nvsTexTarget
 pass0_make_tex_target(GLuint mesa)
 {
@@ -721,7 +738,11 @@ pass0_translate_arith(nouveauShader *nvs, struct gl_program *prog,
 				(inst->SaturateMode != SATURATE_OFF),
 				src[0], src[1], src[2]);
 		nvsinst->tex_unit   = inst->TexSrcUnit;
-		nvsinst->tex_target = pass0_make_tex_target(inst->TexSrcTarget);
+		if (pass0_opcode_is_tex(inst->Opcode))
+			nvsinst->tex_target =
+				pass0_make_tex_target(inst->TexSrcTarget);
+		else
+			nvsinst->tex_target = NVS_TEX_TARGET_UNKNOWN;
 
 		ret = GL_TRUE;
 	} else
diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index a106bbc6abf..0fb2e5a2e0f 100644
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -338,7 +338,7 @@ void r300InitCmdBuf(r300ContextPtr r300)
 		r300->hw.unk4260.cmd[0] = cmdpacket0(0x4260, 3);
 	ALLOC_STATE( shade, always, 5, "shade", 0 );
 		r300->hw.shade.cmd[0] = cmdpacket0(R300_RE_SHADE, 4);
-	ALLOC_STATE( polygon_mode, always, 4, "unk4288", 0 );
+	ALLOC_STATE( polygon_mode, always, 4, "polygon_mode", 0 );
 		r300->hw.polygon_mode.cmd[0] = cmdpacket0(R300_RE_POLYGON_MODE, 3);
 	ALLOC_STATE( fogp, always, 3, "fogp", 0 );
 		r300->hw.fogp.cmd[0] = cmdpacket0(R300_RE_FOG_SCALE, 2);
diff --git a/src/mesa/drivers/dri/r300/r300_maos.c b/src/mesa/drivers/dri/r300/r300_maos.c
index fcb87cbbb59..b0d96f7601a 100644
--- a/src/mesa/drivers/dri/r300/r300_maos.c
+++ b/src/mesa/drivers/dri/r300/r300_maos.c
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r300/r300_maos_arrays.c,v 1.3 2003/02/23 23:59:01 dawes Exp $ */
 /*
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 
diff --git a/src/mesa/drivers/dri/r300/r300_maos.h b/src/mesa/drivers/dri/r300/r300_maos.h
index 679f1c25588..ab283178944 100644
--- a/src/mesa/drivers/dri/r300/r300_maos.h
+++ b/src/mesa/drivers/dri/r300/r300_maos.h
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r200/r200_maos.h,v 1.1 2002/10/30 12:51:52 alanh Exp $ */
 /*
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 
diff --git a/src/mesa/drivers/dri/r300/r300_tex.c b/src/mesa/drivers/dri/r300/r300_tex.c
index 6348ba1982a..eb72802f8b4 100644
--- a/src/mesa/drivers/dri/r300/r300_tex.c
+++ b/src/mesa/drivers/dri/r300/r300_tex.c
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r300/r300_tex.c,v 1.2 2002/11/05 17:46:08 tsi Exp $ */
 /*
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 
diff --git a/src/mesa/drivers/dri/r300/r300_tex.h b/src/mesa/drivers/dri/r300/r300_tex.h
index a18ff0e2ce7..10aabc8b4b7 100644
--- a/src/mesa/drivers/dri/r300/r300_tex.h
+++ b/src/mesa/drivers/dri/r300/r300_tex.h
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r300/r300_tex.h,v 1.1 2002/10/30 12:51:53 alanh Exp $ */
 /*
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 
diff --git a/src/mesa/drivers/dri/r300/r300_texmem.c b/src/mesa/drivers/dri/r300/r300_texmem.c
index 96973c00987..f531b54d115 100644
--- a/src/mesa/drivers/dri/r300/r300_texmem.c
+++ b/src/mesa/drivers/dri/r300/r300_texmem.c
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r300/r300_texmem.c,v 1.5 2002/12/17 00:32:56 dawes Exp $ */
 /**************************************************************************
 
 Copyright (C) Tungsten Graphics 2002.  All Rights Reserved.
diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index cc356afb230..4bc0ea14f81 100644
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/r300/r300_texstate.c,v 1.3 2003/02/15 22:18:47 dawes Exp $ */
 /*
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
 
diff --git a/src/mesa/drivers/dri/r300/radeon_span.c b/src/mesa/drivers/dri/r300/radeon_span.c
index 1b74f6779b4..cc779d684fb 100644
--- a/src/mesa/drivers/dri/r300/radeon_span.c
+++ b/src/mesa/drivers/dri/r300/radeon_span.c
@@ -1,4 +1,3 @@
-/* $XFree86: xc/lib/GL/mesa/src/drv/radeon/radeon_span.c,v 1.6 2002/10/30 12:51:56 alanh Exp $ */
 /**************************************************************************
 
 Copyright (C) The Weather Channel, Inc.  2002.  All Rights Reserved.
diff --git a/src/mesa/drivers/dri/unichrome/via_context.c b/src/mesa/drivers/dri/unichrome/via_context.c
index 89533421b46..4d25d328e33 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.c
+++ b/src/mesa/drivers/dri/unichrome/via_context.c
@@ -768,9 +768,7 @@ void viaXMesaWindowMoved(struct via_context *vmesa)
 				  drawable);
    }
 
-   draw_buffer->drawXoff = (GLuint)(((drawable->x * bytePerPixel) & 0x1f) / 
-			      bytePerPixel);  
-   draw_buffer->drawX = drawable->x - draw_buffer->drawXoff;
+   draw_buffer->drawX = drawable->x;
    draw_buffer->drawY = drawable->y;
    draw_buffer->drawW = drawable->w;
    draw_buffer->drawH = drawable->h;
@@ -782,9 +780,7 @@ void viaXMesaWindowMoved(struct via_context *vmesa)
 				     readable);
       }
 
-      read_buffer->drawXoff = (GLuint)(((readable->x * bytePerPixel) & 0x1f) / 
-				       bytePerPixel);  
-      read_buffer->drawX = readable->x - read_buffer->drawXoff;
+      read_buffer->drawX = readable->x;
       read_buffer->drawY = readable->y;
       read_buffer->drawW = readable->w;
       read_buffer->drawH = readable->h;
@@ -795,13 +791,24 @@ void viaXMesaWindowMoved(struct via_context *vmesa)
 			draw_buffer->drawX * bytePerPixel);
 
    vmesa->front.origMap = (vmesa->front.map + 
-			   draw_buffer->drawY * vmesa->front.pitch + 
-			   draw_buffer->drawX * bytePerPixel);
+			draw_buffer->drawY * vmesa->front.pitch + 
+			draw_buffer->drawX * bytePerPixel);
+
+   vmesa->back.orig = (vmesa->back.offset +
+			draw_buffer->drawY * vmesa->back.pitch +
+			draw_buffer->drawX * bytePerPixel);
 
-   vmesa->back.orig = vmesa->back.offset;
-   vmesa->depth.orig = vmesa->depth.offset;   
-   vmesa->back.origMap = vmesa->back.map;
-   vmesa->depth.origMap = vmesa->depth.map;
+   vmesa->back.origMap = (vmesa->back.map +
+			draw_buffer->drawY * vmesa->back.pitch +
+			draw_buffer->drawX * bytePerPixel);
+
+   vmesa->depth.orig = (vmesa->depth.offset +
+			draw_buffer->drawY * vmesa->depth.pitch +
+			draw_buffer->drawX * bytePerPixel);   
+
+   vmesa->depth.origMap = (vmesa->depth.map +
+			draw_buffer->drawY * vmesa->depth.pitch +
+			draw_buffer->drawX * bytePerPixel);
 
    viaCalcViewport(vmesa->glCtx);
 }
diff --git a/src/mesa/drivers/dri/unichrome/via_context.h b/src/mesa/drivers/dri/unichrome/via_context.h
index 77161a8d5df..fecd2782fba 100644
--- a/src/mesa/drivers/dri/unichrome/via_context.h
+++ b/src/mesa/drivers/dri/unichrome/via_context.h
@@ -104,11 +104,6 @@ struct via_renderbuffer {
    int drawW;                  
    int drawH;    
 
-   int drawXoff;		/* drawX is 32byte aligned - this is
-				 * the delta to the real origin, in
-				 * pixel units.
-				 */
-
    __DRIdrawablePrivate *dPriv;
 };
 
diff --git a/src/mesa/drivers/dri/unichrome/via_ioctl.c b/src/mesa/drivers/dri/unichrome/via_ioctl.c
index 5d102de93ed..4a733fb00c2 100644
--- a/src/mesa/drivers/dri/unichrome/via_ioctl.c
+++ b/src/mesa/drivers/dri/unichrome/via_ioctl.c
@@ -187,7 +187,7 @@ static void viaFillBuffer(struct via_context *vmesa,
       int w = pbox[i].x2 - pbox[i].x1;
       int h = pbox[i].y2 - pbox[i].y1;
 
-      int offset = (buffer->orig + 
+      int offset = (buffer->offset + 
 		    y * buffer->pitch + 
 		    x * bytePerPixel);
 
@@ -276,7 +276,7 @@ static void viaClear(GLcontext *ctx, GLbitfield mask)
 
       /* flip top to bottom */
       cy = dPriv->h - cy - ch;
-      cx += vrb->drawX + vrb->drawXoff;
+      cx += vrb->drawX;
       cy += vrb->drawY;
         
       if (!all) {
@@ -359,8 +359,8 @@ static void viaDoSwapBuffers(struct via_context *vmesa,
       GLint w = b->x2 - b->x1;
       GLint h = b->y2 - b->y1;
 	
-      GLuint src = back->orig + y * back->pitch + x * bytePerPixel;
-      GLuint dest = front->orig + y * front->pitch + x * bytePerPixel;
+      GLuint src = back->offset + y * back->pitch + x * bytePerPixel;
+      GLuint dest = front->offset + y * front->pitch + x * bytePerPixel;
 
       viaBlit(vmesa, 
 	      bytePerPixel << 3, 
@@ -747,7 +747,7 @@ static void via_emit_cliprect(struct via_context *vmesa,
 		    : HC_HDBFM_RGB565);
 
    GLuint pitch = buffer->pitch;
-   GLuint offset = buffer->orig;
+   GLuint offset = buffer->offset;
 
    if (0)
       fprintf(stderr, "emit cliprect for box %d,%d %d,%d\n", 
@@ -768,7 +768,7 @@ static void via_emit_cliprect(struct via_context *vmesa,
    vb[4] = (HC_SubA_HDBBasL << 24) | (offset & 0xFFFFFF);
    vb[5] = (HC_SubA_HDBBasH << 24) | ((offset & 0xFF000000) >> 24); 
 
-   vb[6] = (HC_SubA_HSPXYOS << 24) | ((31 - buffer->drawXoff) << HC_HSPXOS_SHIFT);
+   vb[6] = (HC_SubA_HSPXYOS << 24);
    vb[7] = (HC_SubA_HDBFM << 24) | HC_HDBLoc_Local | format | pitch;
 }
 
@@ -887,22 +887,18 @@ void viaFlushDmaLocked(struct via_context *vmesa, GLuint flags)
       struct via_renderbuffer *const vrb = 
 	(struct via_renderbuffer *) dPriv->driverPrivate;
 
-
       for (i = 0; i < vmesa->numClipRects; i++) {
 	 drm_clip_rect_t b;
 
-	 b.x1 = pbox[i].x1 - (vrb->drawX + vrb->drawXoff);
-	 b.x2 = pbox[i].x2 - (vrb->drawX + vrb->drawXoff);
-	 b.y1 = pbox[i].y1 - vrb->drawY;
-	 b.y2 = pbox[i].y2 - vrb->drawY;
+	 b.x1 = pbox[i].x1;
+	 b.x2 = pbox[i].x2;
+	 b.y1 = pbox[i].y1;
+	 b.y2 = pbox[i].y2;
 
 	 if (vmesa->scissor &&
 	     !intersect_rect(&b, &b, &vmesa->scissorRect)) 
 	    continue;
 
-	 b.x1 += vrb->drawXoff;
-	 b.x2 += vrb->drawXoff;
-
 	 via_emit_cliprect(vmesa, &b);
 
 	 if (fire_buffer(vmesa) != 0) {
diff --git a/src/mesa/drivers/dri/unichrome/via_span.c b/src/mesa/drivers/dri/unichrome/via_span.c
index f1ed98036bf..3a16dadd238 100644
--- a/src/mesa/drivers/dri/unichrome/via_span.c
+++ b/src/mesa/drivers/dri/unichrome/via_span.c
@@ -46,7 +46,7 @@
     GLuint pitch = vrb->pitch;                                          \
     GLuint height = dPriv->h;                                        	\
     GLint p = 0;							\
-    char *buf = (char *)(vrb->origMap + vrb->drawXoff * vrb->bpp);      \
+    char *buf = (char *)(vrb->origMap);					\
     (void) p;
 
 /* ================================================================
@@ -82,7 +82,7 @@
     __DRIdrawablePrivate *dPriv = vrb->dPriv;                       \
     GLuint depth_pitch = vrb->pitch;                                \
     GLuint height = dPriv->h;                                       \
-    char *buf = (char *)(vrb->map + (vrb->drawXoff * vrb->bpp/8))
+    char *buf = (char *)(vrb->map)
 
 #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS 
 
diff --git a/src/mesa/drivers/dri/unichrome/via_state.c b/src/mesa/drivers/dri/unichrome/via_state.c
index 30b9dc289a7..bccdbe93264 100644
--- a/src/mesa/drivers/dri/unichrome/via_state.c
+++ b/src/mesa/drivers/dri/unichrome/via_state.c
@@ -500,10 +500,8 @@ void viaEmitState(struct via_context *vmesa)
 
       OUT_RING( HC_HEADER2 );                     
       OUT_RING( (HC_ParaType_NotTex << 16) );
-      OUT_RING( (HC_SubA_HSPXYOS << 24) | 
-		(((32- vrb->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT));
-      OUT_RING( (HC_SubA_HSPXYOS << 24) | 
-		(((32 - vrb->drawXoff) & 0x1f) << HC_HSPXOS_SHIFT));
+      OUT_RING( (HC_SubA_HSPXYOS << 24) );
+      OUT_RING( (HC_SubA_HSPXYOS << 24) );
 
       ADVANCE_RING();
    }
@@ -712,12 +710,8 @@ static void viaColorMask(GLcontext *ctx,
 }
 
 
-/* =============================================================
- */
 
-
-/* Using drawXoff like this is incorrect outside of locked regions.
- * This hardware just isn't capable of private back buffers without
+/* This hardware just isn't capable of private back buffers without
  * glitches and/or a hefty locking scheme.
  */
 void viaCalcViewport(GLcontext *ctx)
@@ -729,12 +723,10 @@ void viaCalcViewport(GLcontext *ctx)
     const GLfloat *v = ctx->Viewport._WindowMap.m;
     GLfloat *m = vmesa->ViewportMatrix.m;
     
-    /* See also via_translate_vertex.
-     */
     m[MAT_SX] =   v[MAT_SX];
-    m[MAT_TX] =   v[MAT_TX] + SUBPIXEL_X + vrb->drawXoff;
+    m[MAT_TX] =   v[MAT_TX] + vrb->drawX + SUBPIXEL_X;
     m[MAT_SY] = - v[MAT_SY];
-    m[MAT_TY] = - v[MAT_TY] + dPriv->h + SUBPIXEL_Y;
+    m[MAT_TY] = - v[MAT_TY] + vrb->drawY + SUBPIXEL_Y + vrb->drawH;
     m[MAT_SZ] =   v[MAT_SZ] * (1.0 / vmesa->depth_max);
     m[MAT_TZ] =   v[MAT_TZ] * (1.0 / vmesa->depth_max);
 }
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c
index cad9736b30b..44729b74196 100644
--- a/src/mesa/main/image.c
+++ b/src/mesa/main/image.c
@@ -3877,6 +3877,22 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
    }
 }
 
+#define DEPTH_VALUES(GLTYPE, GLTYPE2FLOAT)                              \
+    do {                                                                \
+        GLuint i;                                                       \
+        const GLTYPE *src = (const GLTYPE *)source;                     \
+        for (i = 0; i < n; i++) {                                       \
+            GLTYPE value = src[i];                                      \
+            if (srcPacking->SwapBytes) {                                \
+                if (sizeof(GLTYPE) == 2) {                              \
+                    SWAP2BYTE(value);                                   \
+                } else if (sizeof(GLTYPE) == 4) {                       \
+                    SWAP4BYTE(value);                                   \
+                }                                                       \
+            }                                                           \
+            depthValues[i] = CLAMP(GLTYPE2FLOAT(value), 0.0F, 1.0F);    \
+        }                                                               \
+    } while (0)
 
 void
 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
@@ -3898,59 +3914,23 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
 
    switch (srcType) {
       case GL_BYTE:
-         {
-            GLuint i;
-            const GLubyte *src = (const GLubyte *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = BYTE_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLbyte, BYTE_TO_FLOAT);
+          break;
       case GL_UNSIGNED_BYTE:
-         {
-            GLuint i;
-            const GLubyte *src = (const GLubyte *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = UBYTE_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLubyte, UBYTE_TO_FLOAT);
+          break;
       case GL_SHORT:
-         {
-            GLuint i;
-            const GLshort *src = (const GLshort *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = SHORT_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLshort, SHORT_TO_FLOAT);
+          break;
       case GL_UNSIGNED_SHORT:
-         {
-            GLuint i;
-            const GLushort *src = (const GLushort *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = USHORT_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLushort, USHORT_TO_FLOAT);
+          break;
       case GL_INT:
-         {
-            GLuint i;
-            const GLint *src = (const GLint *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = INT_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLint, INT_TO_FLOAT);
+          break;
       case GL_UNSIGNED_INT:
-         {
-            GLuint i;
-            const GLuint *src = (const GLuint *) source;
-            for (i = 0; i < n; i++) {
-               depthValues[i] = UINT_TO_FLOAT(src[i]);
-            }
-         }
-         break;
+          DEPTH_VALUES(GLuint, UINT_TO_FLOAT);
+          break;
       case GL_UNSIGNED_INT_24_8_EXT: /* GL_EXT_packed_depth_stencil */
          if (dstType == GL_UNSIGNED_INT &&
              depthScale == (GLfloat) 0xffffff &&
@@ -3960,7 +3940,11 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
             GLuint *zValues = (GLuint *) dest;
             GLuint i;
             for (i = 0; i < n; i++) {
-               zValues[i] = src[i] & 0xffffff00;
+                GLuint value = src[i];
+                if (srcPacking->SwapBytes) {
+                    SWAP4BYTE(value);
+                }
+                zValues[i] = value & 0xffffff00;
             }
             return;
          }
@@ -3969,19 +3953,27 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n,
             const GLfloat scale = 1.0f / 0xffffff;
             GLuint i;
             for (i = 0; i < n; i++) {
-               depthValues[i] = (src[i] >> 8) * scale;
+                GLuint value = src[i];
+                if (srcPacking->SwapBytes) {
+                    SWAP4BYTE(value);
+                }
+                depthValues[i] = (value >> 8) * scale;
             }
          }
          break;
       case GL_FLOAT:
-         _mesa_memcpy(depthValues, source, n * sizeof(GLfloat));
-         break;
+          DEPTH_VALUES(GLfloat, 1*);
+          break;
       case GL_HALF_FLOAT_ARB:
          {
             GLuint i;
             const GLhalfARB *src = (const GLhalfARB *) source;
             for (i = 0; i < n; i++) {
-               depthValues[i] = _mesa_half_to_float(src[i]);
+                GLhalfARB value = src[i];
+                if (srcPacking->SwapBytes) {
+                    SWAP2BYTE(value);
+                }
+               depthValues[i] = _mesa_half_to_float(value);
             }
          }
          break;
diff --git a/src/mesa/main/texcompress_fxt1.c b/src/mesa/main/texcompress_fxt1.c
index d3011cedce4..411d51cfcc6 100644
--- a/src/mesa/main/texcompress_fxt1.c
+++ b/src/mesa/main/texcompress_fxt1.c
@@ -752,44 +752,55 @@ fxt1_quantize_ALPHA1 (GLuint *cc,
    GLint minColL = 0, maxColL = 0;
    GLint minColR = 0, maxColR = 0;
    GLint sumL = 0, sumR = 0;
-
+   GLint nn_comp;
    /* Our solution here is to find the darkest and brightest colors in
     * the 4x4 tile and use those as the two representative colors.
     * There are probably better algorithms to use (histogram-based).
     */
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (k = 0; k < N_TEXELS / 2; k++) {
-      GLint sum = 0;
-      for (i = 0; i < n_comp; i++) {
-         sum += input[k][i];
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minColL = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxColL = k;
-      }
-      sumL += sum;
+   nn_comp = n_comp;
+   while ((minColL == maxColL) && nn_comp) {
+       minSum = 2000; /* big enough */
+       maxSum = -1; /* small enough */
+       for (k = 0; k < N_TEXELS / 2; k++) {
+           GLint sum = 0;
+           for (i = 0; i < nn_comp; i++) {
+               sum += input[k][i];
+           }
+           if (minSum > sum) {
+               minSum = sum;
+               minColL = k;
+           }
+           if (maxSum < sum) {
+               maxSum = sum;
+               maxColL = k;
+           }
+           sumL += sum;
+       }
+       
+       nn_comp--;
    }
-   minSum = 2000; /* big enough */
-   maxSum = -1; /* small enough */
-   for (; k < N_TEXELS; k++) {
-      GLint sum = 0;
-      for (i = 0; i < n_comp; i++) {
-         sum += input[k][i];
-      }
-      if (minSum > sum) {
-         minSum = sum;
-         minColR = k;
-      }
-      if (maxSum < sum) {
-         maxSum = sum;
-         maxColR = k;
-      }
-      sumR += sum;
+
+   nn_comp = n_comp;
+   while ((minColR == maxColR) && nn_comp) {
+       minSum = 2000; /* big enough */
+       maxSum = -1; /* small enough */
+       for (k = N_TEXELS / 2; k < N_TEXELS; k++) {
+           GLint sum = 0;
+           for (i = 0; i < nn_comp; i++) {
+               sum += input[k][i];
+           }
+           if (minSum > sum) {
+               minSum = sum;
+               minColR = k;
+           }
+           if (maxSum < sum) {
+               maxSum = sum;
+               maxColR = k;
+           }
+           sumR += sum;
+       }
+
+       nn_comp--;
    }
 
    /* choose the common vector (yuck!) */
diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index d945a871aed..d97d53e83b4 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -452,7 +452,8 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
        && !scaleOrBias
        && !zoom
        && ctx->Visual.rgbMode
-       && width <= MAX_WIDTH) {
+       && width <= MAX_WIDTH
+       && !unpack->SwapBytes) {
       /* Special case: directly write 16-bit depth values */
       GLint row;
       for (row = 0; row < height; row++) {
@@ -472,7 +473,8 @@ draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
             && !scaleOrBias
             && !zoom
             && ctx->Visual.rgbMode
-            && width <= MAX_WIDTH) {
+            && width <= MAX_WIDTH
+            && !unpack->SwapBytes) {
       /* Special case: shift 32-bit values down to Visual.depthBits */
       const GLint shift = 32 - ctx->DrawBuffer->Visual.depthBits;
       GLint row;
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index 15dc8106b4a..c5524c06306 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -119,7 +119,7 @@ read_depth_pixels( GLcontext *ctx,
             && !biasOrScale && !packing->SwapBytes) {
       /* Special case: directly read 24-bit unsigned depth values. */
       GLint j;
-      ASSERT(rb->InternalFormat == GL_DEPTH_COMPONENT32);
+      ASSERT(rb->InternalFormat == GL_DEPTH_COMPONENT24);
       ASSERT(rb->DataType == GL_UNSIGNED_INT);
       for (j = 0; j < height; j++, y++) {
          GLuint *dest = (GLuint *)