On the way to getting stencil and texture formats working.

Looks like the matter of texture formats is a lot simpler, with the wrong
display in quake explained by the fact that we are not handling texture combine modes.

8 files changed, 179 insertions, 63 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index 92f107b9db..bf018daeb7 100644
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -407,10 +407,8 @@ void r300InitCmdBuf(r300ContextPtr r300)
 		r300->hw.unk4E88.cmd[0] = cmducs(0x4E88, 1);
 	ALLOC_STATE( unk4EA0, always, 3, "unk4EA0 R350 only", 0 );
 		r300->hw.unk4EA0.cmd[0] = cmducs(0x4EA0, 2);
-	ALLOC_STATE( zc, always, R300_ZC_CMDSIZE, "zc", 0 );
-		r300->hw.zc.cmd[R300_ZC_CMD_0] = cmducs(R300_RB3D_ZCNTL_0, 2);
-	ALLOC_STATE( unk4F08, always, 2, "unk4F08", 0 );
-		r300->hw.unk4F08.cmd[0] = cmducs(0x4F08, 1);
+	ALLOC_STATE( zs, always, R300_ZS_CMDSIZE, "zstencil", 0 );
+		r300->hw.zs.cmd[R300_ZS_CMD_0] = cmducs(R300_RB3D_ZSTENCIL_CNTL_0, 3);
 	ALLOC_STATE( unk4F10, always, 5, "unk4F10", 0 );
 		r300->hw.unk4F10.cmd[0] = cmducs(0x4F10, 4);
 	ALLOC_STATE( zb, always, R300_ZB_CMDSIZE, "zb", 0 );
@@ -514,8 +512,7 @@ void r300InitCmdBuf(r300ContextPtr r300)
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4E50);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4E88);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4EA0);
-	insert_at_tail(&r300->hw.atomlist, &r300->hw.zc);
-	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4F08);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.zs);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4F10);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.zb);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.unk4F28);
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h
index 6a7427b168..32607227e1 100644
--- a/src/mesa/drivers/dri/r300/r300_context.h
+++ b/src/mesa/drivers/dri/r300/r300_context.h
@@ -326,10 +326,11 @@ struct r300_state_atom {
 #define R300_CB_PITCH		3
 #define R300_CB_CMDSIZE		4
 
-#define R300_ZC_CMD_0		0
-#define R300_ZC_CNTL_0		1
-#define R300_ZC_CNTL_1		2
-#define R300_ZC_CMDSIZE		3
+#define R300_ZS_CMD_0		0
+#define R300_ZS_CNTL_0		1
+#define R300_ZS_CNTL_1		2
+#define R300_ZS_CNTL_2		3
+#define R300_ZS_CMDSIZE		4
 
 #define R300_ZB_CMD_0		0
 #define R300_ZB_OFFSET		1
@@ -370,6 +371,7 @@ struct r300_hw_state {
 
 	struct r300_state_atom vpt;	/* viewport (1D98) */
 	struct r300_state_atom unk2080;	/* (2080) */
+	struct r300_state_atom vof;     /* VAP output format register 0x2090 */
 	struct r300_state_atom vte;	/* (20B0) */
 	struct r300_state_atom unk2134;	/* (2134) */
 	struct r300_state_atom unk2140;	/* (2140) */
@@ -380,7 +382,6 @@ struct r300_hw_state {
 	struct r300_state_atom unk2220; /* (2220) */
 	struct r300_state_atom unk2288; /* (2288) */
 	struct r300_state_atom pvs;	/* pvs_cntl (22D0) */
-	struct r300_state_atom vof;     /* VAP output format register 0x2090 */
 	struct r300_state_atom gb_enable; /* (4008) */
 	struct r300_state_atom gb_misc; /* Multisampling position shifts ? (4010) */
 	struct r300_state_atom unk4200; /* (4200) */
@@ -416,8 +417,7 @@ struct r300_hw_state {
 	struct r300_state_atom unk4E50;	/* (4E50) */
 	struct r300_state_atom unk4E88;	/* (4E88) */
 	struct r300_state_atom unk4EA0;	/* (4E88) I saw it only written on RV350 hardware..  */
-	struct r300_state_atom zc;	/* z control (4F00) */
-	struct r300_state_atom unk4F08;	/* (4F08) */
+	struct r300_state_atom zs;	/* zstencil control (4F00) */
 	struct r300_state_atom unk4F10;	/* (4F10) */
 	struct r300_state_atom zb;	/* z buffer (4F20) */
 	struct r300_state_atom unk4F28;	/* (4F28) */
diff --git a/src/mesa/drivers/dri/r300/r300_ioctl.c b/src/mesa/drivers/dri/r300/r300_ioctl.c
index 80d059da70..16528e0100 100644
--- a/src/mesa/drivers/dri/r300/r300_ioctl.c
+++ b/src/mesa/drivers/dri/r300/r300_ioctl.c
@@ -200,10 +200,10 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
 	r300->hw.vpi.cmd[7] = VP_ZERO();
 	r300->hw.vpi.cmd[8] = 0;
 
-	R300_STATECHANGE(r300, zc);
+	R300_STATECHANGE(r300, zs);
 	if (flags & CLEARBUFFER_DEPTH) {
-		r300->hw.zc.cmd[R300_ZC_CNTL_0] = 0x6; // test and write
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_ALWAYS;
+		r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0x6; // test and write
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] = (R300_ZS_ALWAYS<<R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
 /*
 		R300_STATECHANGE(r300, zb);
 		r300->hw.zb.cmd[R300_ZB_OFFSET] =
@@ -214,8 +214,8 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
 			r300->radeon.radeonScreen->depthPitch;
 */
 	} else {
-		r300->hw.zc.cmd[R300_ZC_CNTL_0] = 0; // disable
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = 0;
+		r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0; // disable
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] = 0;
 	}
 
 	/* Make sure we have enough space */
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h
index 1244579964..1eab9f8150 100644
--- a/src/mesa/drivers/dri/r300/r300_reg.h
+++ b/src/mesa/drivers/dri/r300/r300_reg.h
@@ -1063,22 +1063,52 @@ I am fairly certain that they are correct unless stated otherwise in comments.
 /* gap */
 /* There seems to be no "write only" setting, so use Z-test = ALWAYS for this. */
 /* Bit (1<<8) is the "test" bit. so plain write is 6  - vd */
-#define R300_RB3D_ZCNTL_0                   0x4F00
+#define R300_RB3D_ZSTENCIL_CNTL_0                   0x4F00
 #       define R300_RB3D_Z_DISABLED_1            0x00000010 /* GUESS */
 #       define R300_RB3D_Z_DISABLED_2            0x00000014 /* GUESS */
 #       define R300_RB3D_Z_TEST                  0x00000012
 #       define R300_RB3D_Z_TEST_AND_WRITE        0x00000016
 #       define R300_RB3D_Z_WRITE_ONLY        	 0x00000006
-#define R300_RB3D_ZCNTL_1                   0x4F04
-#       define R300_Z_TEST_NEVER                 (0 << 0) /* GUESS (based on R200) */
-#       define R300_Z_TEST_LESS                  (1 << 0)
-#       define R300_Z_TEST_LEQUAL                (2 << 0)
-#       define R300_Z_TEST_EQUAL                 (3 << 0) /* GUESS */
-#       define R300_Z_TEST_GEQUAL                (4 << 0) /* GUESS */
-#       define R300_Z_TEST_GREATER               (5 << 0) /* GUESS */
-#       define R300_Z_TEST_NEQUAL                (6 << 0)
-#       define R300_Z_TEST_ALWAYS                (7 << 0)
-#       define R300_Z_TEST_MASK                  (7 << 0)
+
+#define R300_RB3D_ZSTENCILCNTL_1                   0x4F04
+		/* functions */
+#	define R300_ZS_NEVER			0
+#	define R300_ZS_LESS			1
+#	define R300_ZS_LEQUAL			2
+#	define R300_ZS_EQUAL			3
+#	define R300_ZS_GEQUAL			4
+#	define R300_ZS_GREATER			5
+#	define R300_ZS_NOTEQUAL			6
+#	define R300_ZS_ALWAYS			7
+#	define R300_ZS_MASK			7
+		/* operations */
+#	define R300_ZS_KEEP			0
+#	define R300_ZS_ZERO			1
+#	define R300_ZS_REPLACE			2
+#	define R300_ZS_INCR			3
+#	define R300_ZS_DECR			4
+#	define R300_ZS_INVERT			5
+#	define R300_ZS_INCR_WRAP		6
+#	define R300_ZS_DECR_WRAP		7
+
+
+#	define	R300_RB3D_ZS1_DEPTH_FUNC_SHIFT		0
+#	define	R300_RB3D_ZS1_FRONT_FUNC_SHIFT		3
+#	define	R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT	6
+#	define	R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT	9
+#	define	R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT	12
+#	define	R300_RB3D_ZS1_STENCIL_FUNC_SHIFT	15
+#	define	R300_RB3D_ZS1_STENCIL_FAIL_OP_SHIFT	18
+#	define	R300_RB3D_ZS1_STENCIL_ZPASS_OP_SHIFT	21
+#	define	R300_RB3D_ZS1_STENCIL_ZFAIL_OP_SHIFT	24
+
+
+
+#define R300_RB3D_ZSTENCIL_CNTL_2                   0x4F08
+#	define	R300_RB3D_ZS2_STENCIL_REF_SHIFT		0
+#	define	R300_RB3D_ZS2_STENCIL_MASK_SHIFT	8
+#	define	R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT	16
+
 /* gap */
 #define R300_RB3D_DEPTHOFFSET               0x4F20
 #define R300_RB3D_DEPTHPITCH                0x4F24
diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c
index d069f3512c..cdf972a46d 100644
--- a/src/mesa/drivers/dri/r300/r300_render.c
+++ b/src/mesa/drivers/dri/r300/r300_render.c
@@ -293,6 +293,7 @@ static GLboolean r300_run_immediate_render(GLcontext *ctx,
    R300_STATECHANGE(rmesa, vte);
 	#endif
    
+	
       
    /* Magic register - note it is right after 20b0 */
 
@@ -302,14 +303,25 @@ static GLboolean r300_run_immediate_render(GLcontext *ctx,
 		e32(0x0000000c);
    
 	}
-	
+		
    r300EmitState(rmesa);
    
    #if 0
    reg_start(R300_RB3D_COLORMASK, 0);
    	e32(0xf);
+   
+   vsf_start_fragment(0x406, 4);
+   efloat(0.0);
+   efloat(0.0);
+   efloat(0.0);
+   efloat(1.0);
+
+   vsf_start_fragment(0x400, 4);
+   efloat(0.0);
+   efloat(0.0);
+   efloat(0.0);
+   efloat(1.0);
    #endif
-   /* ----------------------------------- */
    
    /* We need LOAD_VBPNTR to setup AOS_ATTR fields.. the offsets are irrelevant */
    r300EmitLOAD_VBPNTR(rmesa, 0);
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 652418af6a..32b77fbb14 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -48,6 +48,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "swrast_setup/swrast_setup.h"
 #include "array_cache/acache.h"
 #include "tnl/tnl.h"
+#include "texformat.h"
 
 #include "radeon_ioctl.h"
 #include "radeon_state.h"
@@ -457,7 +458,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
 		break;
 
 	case GL_DEPTH_TEST:
-		R300_STATECHANGE(r300, zc);
+		R300_STATECHANGE(r300, zs);
 
 		if (state) {
 			if (ctx->Depth.Mask)
@@ -467,7 +468,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
 		} else
 			newval = 0;
 
-		r300->hw.zc.cmd[R300_ZC_CNTL_0] = newval;
+		r300->hw.zs.cmd[R300_ZS_CNTL_0] = newval;
 		break;
 
 	case GL_CULL_FACE:
@@ -516,34 +517,38 @@ static void r300DepthFunc(GLcontext* ctx, GLenum func)
 {
 	r300ContextPtr r300 = R300_CONTEXT(ctx);
 
-	R300_STATECHANGE(r300, zc);
+	R300_STATECHANGE(r300, zs);
 
+	r300->hw.zs.cmd[R300_ZS_CNTL_1] &= ~(R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+	
 	switch(func) {
 	case GL_NEVER:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_NEVER;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_NEVER << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_LESS:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_LESS;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_LESS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_EQUAL:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_EQUAL;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_EQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_LEQUAL:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_LEQUAL;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_LEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_GREATER:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_GREATER;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_GREATER << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_NOTEQUAL:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_NEQUAL;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_NOTEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_GEQUAL:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_GEQUAL;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_GEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	case GL_ALWAYS:
-		r300->hw.zc.cmd[R300_ZC_CNTL_1] = R300_Z_TEST_ALWAYS;
+		r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_ALWAYS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
 		break;
 	}
+
+	fprintf(stderr, "ZS_CNTL_1=%08x\n", r300->hw.zs.cmd[R300_ZS_CNTL_1]);
 }
 
 
@@ -559,8 +564,8 @@ static void r300DepthMask(GLcontext* ctx, GLboolean mask)
 	if (!ctx->Depth.Test)
 		return;
 
-	R300_STATECHANGE(r300, zc);
-	r300->hw.zc.cmd[R300_ZC_CNTL_0] = mask
+	R300_STATECHANGE(r300, zs);
+	r300->hw.zs.cmd[R300_ZS_CNTL_0] = mask
 		? R300_RB3D_Z_TEST_AND_WRITE : R300_RB3D_Z_TEST;
 }
 
@@ -849,7 +854,8 @@ static int inline translate_src(int src)
 	)
 
 	   
-static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint format, GLint IntFormat)
+static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint format, GLint IntFormat, 
+	struct gl_texture_format *tex_format)
 {
 	const struct gl_texture_unit *texUnit= &ctx->Texture.Unit[tex_unit];
 	int i=0; /* number of alpha args .. */
@@ -860,21 +866,33 @@ static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint fo
 		texUnit->_ReallyEnabled, 
 		_mesa_lookup_enum_by_nr(texUnit->EnvMode));
 	#endif
-		
+	
+	if(tex_format==NULL){
+		fprintf(stderr, "Aeiii ! tex_format==NULL !!\n");
+		return 0;
+		}
+	
+	switch(tex_format->MesaFormat){
+		case MESA_FORMAT_RGBA8888:
+			return R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8);
+		default:
+			fprintf(stderr, "Do not know format %s\n", _mesa_lookup_enum_by_nr(tex_format->MesaFormat));
+			return 0;
+		}
+	
 	switch(IntFormat){
 		case 4:
 		case GL_RGBA:
 		case GL_RGBA8:
-			fmt=R300_EASY_TX_FORMAT(Z, Y, X, W, W8Z8Y8X8);
 			break;
 		case 3:
 		case GL_RGB8:
-			fmt=R300_EASY_TX_FORMAT(Z, Y, X, ONE, W8Z8Y8X8);
+			fmt=R300_EASY_TX_FORMAT(Y, Z, W, ONE, W8Z8Y8X8);
 			break;
 		default:
 			return 0;
 		}
-	#if 0
+	#if 1
 	//fmt &= 0x00fff;
 	//fmt |= ((format) & 0xff00)<<4;
 	fprintf(stderr, "NumArgsRGB=%d NumArgsA=%d\n", 
@@ -883,7 +901,7 @@ static GLuint translate_texture_format(GLcontext *ctx, GLint tex_unit, GLuint fo
 	
 	fprintf(stderr, "fmt=%08x\n", fmt);
 	#endif
-	//return fmt;
+	return fmt;
 	/* Size field in format specific first */
 	switch(FORMAT_HASH(							
 		texUnit->_CurrentCombine->OperandRGB[i] -GL_SRC_COLOR,
@@ -1001,6 +1019,7 @@ void r300_setup_textures(GLcontext *ctx)
 	for(i=0;i<mtu;i++){
 		if(ctx->Texture.Unit[i].Enabled){
 			t=r300->state.texture.unit[i].texobj;
+			fprintf(stderr, "format=%08x\n", r300->state.texture.unit[i].format);
 			r300->state.texture.tc_count++;
 			if(t==NULL){
 				fprintf(stderr, "Texture unit %d enabled, but corresponding texobj is NULL, using default object.\n", i);
@@ -1023,6 +1042,7 @@ void r300_setup_textures(GLcontext *ctx)
 			/*r300->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+i]=(rand()%0xffffffff) & (~0x1fff);*/
 			r300->hw.tex.size.cmd[R300_TEX_VALUE_0+i]=t->size;
 			r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=t->format;
+			//fprintf(stderr, "t->format=%08x\n", t->format);
 			r300->hw.tex.offset.cmd[R300_TEX_VALUE_0+i]=r300->radeon.radeonScreen->fbLocation+t->offset;
 			r300->hw.tex.unknown4.cmd[R300_TEX_VALUE_0+i]=0x0;
 			r300->hw.tex.unknown5.cmd[R300_TEX_VALUE_0+i]=0x0;
@@ -1031,9 +1051,11 @@ void r300_setup_textures(GLcontext *ctx)
 			/* We don't know how to set this yet */
 			//value from r300_lib.c for RGB24
 			//r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x88a0c; 
+			#if 0
 			r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=translate_texture_format(ctx, i, t->format,
-			 	r300->state.texture.unit[i].texobj!=NULL?t->base.tObj->Image[0][0]->IntFormat:3);
-			
+			 	r300->state.texture.unit[i].texobj!=NULL?t->base.tObj->Image[0][0]->IntFormat:3,
+				r300->state.texture.unit[i].texobj!=NULL?t->base.tObj->Image[0][0]->TexFormat:NULL);
+			#endif
 			
 			#if 0
 			fprintf(stderr, "Format=%s IntFormat=%08x MesaFormat=%08x BaseFormat=%s IsCompressed=%d Target=%s\n",
@@ -1051,7 +1073,7 @@ void r300_setup_textures(GLcontext *ctx)
 			/* Use the code below to quickly find matching texture
 			   formats. Requires an app that displays the same texture
 			   repeatedly  */
-			      #if 1
+			      #if 0
 				if(r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]==0){ 
 					static int fmt=0x0;
 					static int k=0;
@@ -1353,6 +1375,17 @@ void r300ResetHwState(r300ContextPtr r300)
 	if (RADEON_DEBUG & DEBUG_STATE)
 		fprintf(stderr, "%s\n", __FUNCTION__);
 
+		/* This is a place to initialize registers which
+		   have bitfields accessed by different functions
+		   and not all bits are used */
+	#if 0
+	r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0;
+	r300->hw.zs.cmd[R300_ZS_CNTL_1] = 0;
+	r300->hw.zs.cmd[R300_ZS_CNTL_2] = 0xffff00;
+	#endif
+	
+		/* go and compute register values from GL state */
+		
 	r300UpdateWindow(ctx);
 	
 	r300ColorMask(ctx,
@@ -1379,7 +1412,9 @@ void r300ResetHwState(r300ContextPtr r300)
 	r300_set_blend_state(ctx);
 	r300AlphaFunc(ctx, ctx->Color.AlphaFunc, ctx->Color.AlphaRef);
 
-//BEGIN: TODO
+		/* Initialize magic registers
+		 TODO : learn what they really do, or get rid of
+		 those we don't have to touch */
 	r300->hw.unk2080.cmd[1] = 0x0030045A;
 
 	r300->hw.vte.cmd[1] = R300_VPORT_X_SCALE_ENA
@@ -1563,8 +1598,6 @@ void r300ResetHwState(r300ContextPtr r300)
 	r300->hw.unk4EA0.cmd[1] = 0x00000000;
 	r300->hw.unk4EA0.cmd[2] = 0xffffffff;
 
-	r300->hw.unk4F08.cmd[1] = 0x00FFFF00;
-
 	r300->hw.unk4F10.cmd[1] = 0x00000002; // depthbuffer format?
 	r300->hw.unk4F10.cmd[2] = 0x00000000;
 	r300->hw.unk4F10.cmd[3] = 0x00000003;
diff --git a/src/mesa/drivers/dri/r300/r300_tex.c b/src/mesa/drivers/dri/r300/r300_tex.c
index 884d42cf47..737db509a4 100644
--- a/src/mesa/drivers/dri/r300/r300_tex.c
+++ b/src/mesa/drivers/dri/r300/r300_tex.c
@@ -317,6 +317,13 @@ static const struct gl_texture_format *r300ChooseTextureFormat(GLcontext * ctx,
 	    (rmesa->texture_depth == DRI_CONF_TEXTURE_DEPTH_FORCE_16);
 	(void)format;
 	
+	#if 0
+	fprintf(stderr, "InternalFormat=%s type=%s format=%s\n", 
+		_mesa_lookup_enum_by_nr(internalFormat),
+		_mesa_lookup_enum_by_nr(type),
+		_mesa_lookup_enum_by_nr(format));
+	#endif
+	
 	switch (internalFormat) {
 	case 4:
 	case GL_RGBA:
diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index d10ff4b09a..3c6595f4ac 100644
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -71,7 +71,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 static const struct {
 	GLuint format, filter;
-} tx_table[] = {
+} tx_table0[] = {
 _ALPHA(RGBA8888),
 	    _ALPHA_REV(RGBA8888),
 	    _ALPHA(ARGB8888),
@@ -89,10 +89,36 @@ _ALPHA(RGBA8888),
 	    _COLOR(L8),
 	    _ALPHA(I8), _INVALID(CI8), _YUV(YCBCR), _YUV(YCBCR_REV),};
 
+static const struct {
+	GLuint format, filter;
+} tx_table[] = {
+	    {R300_EASY_TX_FORMAT(Y, Z, W, X, W8Z8Y8X8), 0},
+	    {1, 0},
+	    {2, 0},
+	    {3, 0},
+	    {4, 0},
+	    {5, 0},
+	    {6, 0},
+	    {7, 0},
+	    {8, 0},
+	    {9, 0},
+	    {10, 0},
+	    {11, 0},
+	    {12, 0},
+	    {13, 0},
+	    {14, 0},
+	    {15,  0},
+	    {16,  0},
+	    {17, 0},
+	    };
+
+
 #undef _COLOR
 #undef _ALPHA
 #undef _INVALID
 
+
+
 /**
  * This function computes the number of bytes of storage needed for
  * the given texture object (all mipmap levels, all cube faces).
@@ -124,9 +150,9 @@ static void r300SetTexImages(r300ContextPtr rmesa,
 	t->filter &= ~R200_YUV_TO_RGB;
 #endif
 	if (VALID_FORMAT(baseImage->TexFormat->MesaFormat)) {
-		t->format |=
+		t->format =
 		    tx_table[baseImage->TexFormat->MesaFormat].format;
-#if 0	
+#if 1	
 		t->filter |=
 		    tx_table[baseImage->TexFormat->MesaFormat].filter;
 #endif		
@@ -248,6 +274,7 @@ static void r300SetTexImages(r300ContextPtr rmesa,
 	t->filter &= ~R200_MAX_MIP_LEVEL_MASK;
 	t->filter |= (numLevels - 1) << R200_MAX_MIP_LEVEL_SHIFT;
 #endif
+	#if 0
 	t->format &= ~(R200_TXFORMAT_WIDTH_MASK |
 			    R200_TXFORMAT_HEIGHT_MASK |
 			    R200_TXFORMAT_CUBIC_MAP_ENABLE |
@@ -255,7 +282,8 @@ static void r300SetTexImages(r300ContextPtr rmesa,
 			    R200_TXFORMAT_F5_HEIGHT_MASK);
 	t->format |= ((log2Width << R200_TXFORMAT_WIDTH_SHIFT) |
 			   (log2Height << R200_TXFORMAT_HEIGHT_SHIFT));
-
+	#endif
+			   
 	t->format_x &= ~(R200_DEPTH_LOG2_MASK | R200_TEXCOORD_MASK);
 	if (tObj->Target == GL_TEXTURE_3D) {
 		t->format_x |= (log2Depth << R200_DEPTH_LOG2_SHIFT);
@@ -440,7 +468,10 @@ static GLboolean r300UpdateTextureEnv(GLcontext * ctx, int unit)
 	    ~(R200_TXC_SCALE_MASK);
 	GLuint alpha_scale = rmesa->hw.pix[unit].cmd[PIX_PP_TXABLEND2] &
 	    ~(R200_TXA_DOT_ALPHA | R200_TXA_SCALE_MASK);
-
+	#endif
+	
+	GLuint color_scale=0, alpha_scale=0;
+	    
 	/* texUnit->_Current can be NULL if and only if the texture unit is
 	 * not actually enabled.
 	 */
@@ -460,9 +491,12 @@ static GLboolean r300UpdateTextureEnv(GLcontext * ctx, int unit)
 	 */
 	/* Don't cache these results.
 	 */
+	#if 0
 	rmesa->state.texture.unit[unit].format = 0;
+	#endif
 	rmesa->state.texture.unit[unit].envMode = 0;
 
+	
 	if (!texUnit->_ReallyEnabled) {
 		if (unit == 0) {
 			color_combine =
@@ -733,6 +767,9 @@ static GLboolean r300UpdateTextureEnv(GLcontext * ctx, int unit)
 		 */
 	}
 
+	fprintf(stderr, "color_combine=%08x alpha_combine=%08x color_scale=%08x alpha_scale=%08x\n");
+	
+	#if 0
 	if (rmesa->hw.pix[unit].cmd[PIX_PP_TXCBLEND] != color_combine ||
 	    rmesa->hw.pix[unit].cmd[PIX_PP_TXABLEND] != alpha_combine ||
 	    rmesa->hw.pix[unit].cmd[PIX_PP_TXCBLEND2] != color_scale ||
@@ -1228,17 +1265,17 @@ static GLboolean update_tex_common(GLcontext * ctx, int unit)
 		rmesa->recheck_texgen[unit] = 0;
 		rmesa->NewGLState |= _NEW_TEXTURE_MATRIX;
 	}
+	#endif
 
 	format = tObj->Image[0][tObj->BaseLevel]->Format;
 	if (rmesa->state.texture.unit[unit].format != format ||
 	    rmesa->state.texture.unit[unit].envMode != texUnit->EnvMode) {
-		rmesa->state.texture.unit[unit].format = format;
+		//rmesa->state.texture.unit[unit].format = format;
 		rmesa->state.texture.unit[unit].envMode = texUnit->EnvMode;
 		if (!r300UpdateTextureEnv(ctx, unit)) {
 			return GL_FALSE;
 		}
 	}
-	#endif
 	
 	FALLBACK(&rmesa->radeon, RADEON_FALLBACK_BORDER_MODE, t->border_fallback);
 	return !t->border_fallback;