Mipmapping and other texture filters now work.

Beaware that R300_TX_MIN_FILTER_MASK might be incorrect because i havent
been able to confirm that all filters operate correctly. Because of this its
also pretty pointless trying to get other features that use filter field to
work.

Lod bias should also work but have been unable to test it because lodbias
test doesnt work.

5 files changed, 69 insertions, 38 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h
index 38beffbc213..33b2f3da547 100644
--- a/src/mesa/drivers/dri/r300/r300_reg.h
+++ b/src/mesa/drivers/dri/r300/r300_reg.h
@@ -578,6 +578,17 @@ I am fairly certain that they are correct unless stated otherwise in comments.
 #       define R300_TX_MAG_FILTER_MASK           (3 << 9)
 #       define R300_TX_MIN_FILTER_NEAREST        (1 << 11)
 #       define R300_TX_MIN_FILTER_LINEAR         (2 << 11)
+/* TODO: Test and verify R300_TX_MIN_FILTER_MASK */
+#	define R300_TX_MIN_FILTER_NEAREST_MIP_NEAREST       (2  <<  12)
+#	define R300_TX_MIN_FILTER_NEAREST_MIP_LINEAR        (3  <<  12)
+#	define R300_TX_MIN_FILTER_LINEAR_MIP_NEAREST        (6  <<  12)
+#	define R300_TX_MIN_FILTER_LINEAR_MIP_LINEAR         (7  <<  12)
+#	define R300_TX_MIN_FILTER_ANISO_NEAREST             (8  <<  12)
+#	define R300_TX_MIN_FILTER_ANISO_LINEAR              (9  <<  12)
+#	define R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST (10 <<  12)
+#	define R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR  (11 <<  12)
+
+#       define R300_TX_MIN_FILTER_MASK           (0x0000f800)
 #define R300_TX_UNK1_0                      0x4440
 #define R300_TX_SIZE_0                      0x4480
 #       define R300_TX_WIDTHMASK_SHIFT           0
diff --git a/src/mesa/drivers/dri/r300/r300_render.c b/src/mesa/drivers/dri/r300/r300_render.c
index 249da09f27e..d069f3512c2 100644
--- a/src/mesa/drivers/dri/r300/r300_render.c
+++ b/src/mesa/drivers/dri/r300/r300_render.c
@@ -193,7 +193,7 @@ static void r300_render_immediate_primitive(r300ContextPtr rmesa,
    GLuint i;
    int k, type;
    LOCAL_VARS
-       	
+		   
    type=r300_get_primitive_type(rmesa, ctx, start, end, prim);
 		
    		#if 0
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 7c09e3c026a..142d34bd839 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -955,7 +955,12 @@ void r300_setup_textures(GLcontext *ctx)
 			r300->hw.txe.cmd[R300_TXE_ENABLE]|=(1<<i);
 			
 			r300->hw.tex.filter.cmd[R300_TEX_VALUE_0+i]=t->filter;
-			r300->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+i]=t->pitch;
+			
+			/* Turn off rest of the bits that are wrong */
+			t->filter &= R300_TX_MIN_FILTER_MASK | R300_TX_MAG_FILTER_MASK;
+			
+			/* No idea why linear filtered textures shake when puting random data */
+			/*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;
 			r300->hw.tex.offset.cmd[R300_TEX_VALUE_0+i]=r300->radeon.radeonScreen->fbLocation+t->offset;
diff --git a/src/mesa/drivers/dri/r300/r300_tex.c b/src/mesa/drivers/dri/r300/r300_tex.c
index 7577eb8ddd9..33a8fa1e5ca 100644
--- a/src/mesa/drivers/dri/r300/r300_tex.c
+++ b/src/mesa/drivers/dri/r300/r300_tex.c
@@ -66,7 +66,9 @@ static void r300SetTexWrap(r300TexObjPtr t, GLenum swrap, GLenum twrap,
 {
 	GLboolean is_clamp = GL_FALSE;
 	GLboolean is_clamp_to_border = GL_FALSE;
-
+	
+/* Most of these seem to be incorrect so disable for now */
+#if 0	
 	t->filter &=
 	    ~(R200_CLAMP_S_MASK | R200_CLAMP_T_MASK | R200_BORDER_MODE_D3D);
 
@@ -176,10 +178,14 @@ static void r300SetTexWrap(r300TexObjPtr t, GLenum swrap, GLenum twrap,
 	}
 
 	t->border_fallback = (is_clamp && is_clamp_to_border);
+#endif	
 }
 
 static void r300SetTexMaxAnisotropy(r300TexObjPtr t, GLfloat max)
 {
+	
+/* Needs testing */	
+#if 0	
 	t->filter &= ~R200_MAX_ANISO_MASK;
 
 	if (max == 1.0) {
@@ -193,6 +199,7 @@ static void r300SetTexMaxAnisotropy(r300TexObjPtr t, GLfloat max)
 	} else {
 		t->filter |= R200_MAX_ANISO_16_TO_1;
 	}
+#endif	
 }
 
 /**
@@ -205,49 +212,51 @@ static void r300SetTexMaxAnisotropy(r300TexObjPtr t, GLfloat max)
 
 static void r300SetTexFilter(r300TexObjPtr t, GLenum minf, GLenum magf)
 {
-	GLuint anisotropy = (t->filter & R200_MAX_ANISO_MASK);
+	GLuint anisotropy = 0; //(t->filter & R200_MAX_ANISO_MASK);
 
-	t->filter &= ~(R200_MIN_FILTER_MASK | R200_MAG_FILTER_MASK);
-	t->format_x &= ~R200_VOLUME_FILTER_MASK;
+	t->filter &= ~(R300_TX_MIN_FILTER_MASK | R300_TX_MAG_FILTER_MASK);
+#if 0	
+	//t->format_x &= ~R200_VOLUME_FILTER_MASK;
+#endif	
 	
 	if (anisotropy == R200_MAX_ANISO_1_TO_1) {
 		switch (minf) {
 		case GL_NEAREST:
-			t->filter |= R200_MIN_FILTER_NEAREST;
+			t->filter |= R300_TX_MIN_FILTER_NEAREST;
 			break;
 		case GL_LINEAR:
-			t->filter |= R200_MIN_FILTER_LINEAR;
+			t->filter |= R300_TX_MIN_FILTER_LINEAR;
 			break;
 		case GL_NEAREST_MIPMAP_NEAREST:
-			t->filter |= R200_MIN_FILTER_NEAREST_MIP_NEAREST;
+			t->filter |= R300_TX_MIN_FILTER_NEAREST_MIP_NEAREST;
 			break;
 		case GL_NEAREST_MIPMAP_LINEAR:
-			t->filter |= R200_MIN_FILTER_LINEAR_MIP_NEAREST;
+			t->filter |= R300_TX_MIN_FILTER_LINEAR_MIP_NEAREST;
 			break;
 		case GL_LINEAR_MIPMAP_NEAREST:
-			t->filter |= R200_MIN_FILTER_NEAREST_MIP_LINEAR;
+			t->filter |= R300_TX_MIN_FILTER_NEAREST_MIP_LINEAR;
 			break;
 		case GL_LINEAR_MIPMAP_LINEAR:
-			t->filter |= R200_MIN_FILTER_LINEAR_MIP_LINEAR;
+			t->filter |= R300_TX_MIN_FILTER_LINEAR_MIP_LINEAR;
 			break;
 		}
 	} else {
 		switch (minf) {
 		case GL_NEAREST:
-			t->filter |= R200_MIN_FILTER_ANISO_NEAREST;
+			t->filter |= R300_TX_MIN_FILTER_ANISO_NEAREST;
 			break;
 		case GL_LINEAR:
-			t->filter |= R200_MIN_FILTER_ANISO_LINEAR;
+			t->filter |= R300_TX_MIN_FILTER_ANISO_LINEAR;
 			break;
 		case GL_NEAREST_MIPMAP_NEAREST:
 		case GL_LINEAR_MIPMAP_NEAREST:
 			t->filter |=
-			    R200_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
+				R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST;
 			break;
 		case GL_NEAREST_MIPMAP_LINEAR:
 		case GL_LINEAR_MIPMAP_LINEAR:
 			t->filter |=
-			    R200_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
+				R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR;
 			break;
 		}
 	}
@@ -257,12 +266,12 @@ static void r300SetTexFilter(r300TexObjPtr t, GLenum minf, GLenum magf)
 	 */
 	switch (magf) {
 	case GL_NEAREST:
-		t->filter |= R200_MAG_FILTER_NEAREST;
-		t->format_x |= R200_VOLUME_FILTER_NEAREST;
+		t->filter |= R300_TX_MAG_FILTER_NEAREST;
+		/*t->format_x |= R200_VOLUME_FILTER_NEAREST;*/
 		break;
 	case GL_LINEAR:
-		t->filter |= R200_MAG_FILTER_LINEAR;
-		t->format_x |= R200_VOLUME_FILTER_LINEAR;
+		t->filter |= R300_TX_MAG_FILTER_LINEAR;
+		/*t->format_x |= R200_VOLUME_FILTER_LINEAR;*/
 		break;
 	}
 }
@@ -802,16 +811,15 @@ static void r300TexEnv(GLcontext * ctx, GLenum target,
 		fprintf(stderr, "%s( %s )\n",
 			__FUNCTION__, _mesa_lookup_enum_by_nr(pname));
 	}
-
-	fprintf(stderr, "%s:%s I am broken - Fixme !\n", __FILE__, __FUNCTION__);
-	
-	#if 0
+			
 	/* This is incorrect: Need to maintain this data for each of
 	 * GL_TEXTURE_{123}D, GL_TEXTURE_RECTANGLE_NV, etc, and switch
 	 * between them according to _ReallyEnabled.
 	 */
 	switch (pname) {
 	case GL_TEXTURE_ENV_COLOR:{
+		fprintf(stderr, "%s:%s I am broken - Fixme !\n", __FILE__, __FUNCTION__);
+		/*
 			GLubyte c[4];
 			GLuint envColor;
 			UNCLAMPED_FLOAT_TO_RGBA_CHAN(c, texUnit->EnvColor);
@@ -822,12 +830,11 @@ static void r300TexEnv(GLcontext * ctx, GLenum target,
 				    envColor;
 			}
 			break;
-		}
+		*/}
 
 	case GL_TEXTURE_LOD_BIAS_EXT:{
 			GLfloat bias, min;
 			GLuint b;
-			const int fixed_one = 0x8000000;
 
 			/* The R200's LOD bias is a signed 2's complement value with a
 			 * range of -16.0 <= bias < 16.0.
@@ -839,15 +846,20 @@ static void r300TexEnv(GLcontext * ctx, GLenum target,
 			    driQueryOptionb(&rmesa->radeon.optionCache,
 					    "no_neg_lod_bias") ? 0.0 : -16.0;
 			bias = CLAMP(bias, min, 16.0);
-			b = (int)(bias * fixed_one) & R200_LOD_BIAS_MASK;
-
-			if ((rmesa->hw.tex[unit].
-			     cmd[TEX_PP_TXFORMAT_X] & R200_LOD_BIAS_MASK) !=
-			    b) {
-				R200_STATECHANGE(rmesa, tex[unit]);
-				rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] &=
-				    ~R200_LOD_BIAS_MASK;
-				rmesa->hw.tex[unit].cmd[TEX_PP_TXFORMAT_X] |= b;
+			
+#define R300_LOD_BIAS_MASK	0x1fff
+			
+			/* 1.0 is 0x00000100 and 10.0 is 0x00000a00 --aet */
+
+			b = 0x1000 / 16.0 * bias;
+			/* No clue about negative biases but this would 
+			   seem logical if positive max is 0x1000 */
+			b &= R300_LOD_BIAS_MASK;
+			
+			if(b != (rmesa->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+unit] & R300_LOD_BIAS_MASK)){
+				R300_STATECHANGE(rmesa, tex.unknown1);
+				rmesa->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+unit] &= ~R300_LOD_BIAS_MASK;
+				rmesa->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+unit] |= b;
 			}
 			break;
 		}
@@ -855,7 +867,6 @@ static void r300TexEnv(GLcontext * ctx, GLenum target,
 	default:
 		return;
 	}
-	#endif
 }
 
 /**
diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index fde17e3df6c..15d3605d01e 100644
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -120,13 +120,16 @@ static void r300SetTexImages(r300ContextPtr rmesa,
 
 	t->format &= ~(R200_TXFORMAT_FORMAT_MASK |
 			    R200_TXFORMAT_ALPHA_IN_MAP);
+#if 0	
 	t->filter &= ~R200_YUV_TO_RGB;
-
+#endif
 	if (VALID_FORMAT(baseImage->TexFormat->MesaFormat)) {
 		t->format |=
 		    tx_table[baseImage->TexFormat->MesaFormat].format;
+#if 0	
 		t->filter |=
 		    tx_table[baseImage->TexFormat->MesaFormat].filter;
+#endif		
 	} else {
 		_mesa_problem(NULL, "unexpected texture format in %s",
 			      __FUNCTION__);
@@ -241,9 +244,10 @@ static void r300SetTexImages(r300ContextPtr rmesa,
 
 	/* Hardware state:
 	 */
+#if 1	
 	t->filter &= ~R200_MAX_MIP_LEVEL_MASK;
 	t->filter |= (numLevels - 1) << R200_MAX_MIP_LEVEL_SHIFT;
-
+#endif
 	t->format &= ~(R300_TX_FORMAT_WIDTH_MASK |
 			    R300_TX_FORMAT_HEIGHT_MASK |
 			    R200_TXFORMAT_CUBIC_MAP_ENABLE |