Get alpha in textures to work properly.

src/mesa/drivers/dri/r300/r300_fixed_pipelines.h

@@ -261,8 +261,16 @@ static struct r300_pixel_shader_state SINGLE_TEXTURE_PIXEL_SHADER={
 					{
 					EASY_PFS_INSTR0(MAD, SRC0C_XYZ, SRC1C_XYZ, ZERO), 
 					EASY_PFS_INSTR1(0, 0, 1, 0 | PFS_FLAG_CONST, NONE, ALL), 
+					
+					#if 0
+					/* no alpha in textures */
 					EASY_PFS_INSTR2(MAD, SRC0A, ONE, ZERO), 
 					EASY_PFS_INSTR3(0, 1, 0 | PFS_FLAG_CONST, 0 | PFS_FLAG_CONST, OUTPUT)
+					#endif
+					
+					/* alpha in textures */
+					EASY_PFS_INSTR2(MAD, SRC0A, SRC1A, ZERO), 
+					EASY_PFS_INSTR3(0, 0, 1, 0 | PFS_FLAG_CONST, OUTPUT)
 					},
 					
 					{

src/mesa/drivers/dri/r300/r300_reg.h

@@ -655,7 +655,7 @@ I am fairly certain that they are correct unless stated otherwise in comments.
 # 	define R300_TX_FORMAT_ALPHA_4CH		    0x600
 # 	define R300_TX_FORMAT_ALPHA_NONE	    0xA00
 	/* Swizzling */
-	/* constats */
+	/* constants */
 #	define R300_TX_FORMAT_X		0
 #	define R300_TX_FORMAT_Y		1
 #	define R300_TX_FORMAT_Z		2

src/mesa/drivers/dri/r300/r300_state.c

@@ -209,6 +209,9 @@ static void r300_set_blend_cntl(r300ContextPtr rmesa, int func, int eqn, int cbi
 {
 	GLuint new_ablend, new_cblend;
 
+	#if 0
+	fprintf(stderr, "eqnA=%08x funcA=%08x eqn=%08x func=%08x cbits=%08x\n", eqnA, funcA, eqn, func, cbits);
+	#endif
 	new_ablend = eqnA | funcA;
 	new_cblend = eqn | func;
 	if(funcA == func){

src/mesa/drivers/dri/r300/r300_tex.c

@@ -318,10 +318,12 @@ static const struct gl_texture_format *r300ChooseTextureFormat(GLcontext * ctx,
 	(void)format;
 	
 	#if 0
-	fprintf(stderr, "InternalFormat=%s type=%s format=%s\n", 
-		_mesa_lookup_enum_by_nr(internalFormat),
+	fprintf(stderr, "InternalFormat=%s(%d) type=%s format=%s\n", 
+		_mesa_lookup_enum_by_nr(internalFormat), internalFormat,
 		_mesa_lookup_enum_by_nr(type),
 		_mesa_lookup_enum_by_nr(format));
+	fprintf(stderr, "do32bpt=%d force16bpt=%d\n", 	
+		do32bpt, force16bpt);
 	#endif
 	
 	switch (internalFormat) {