Add texture units registers

3 files changed, 118 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/r300/r300_cmdbuf.c b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
index f4ef0fad32b..82ad3152736 100644
--- a/src/mesa/drivers/dri/r300/r300_cmdbuf.c
+++ b/src/mesa/drivers/dri/r300/r300_cmdbuf.c
@@ -273,9 +273,12 @@ CHECK( vpu, vpucount(atom->cmd) ? (1 + vpucount(atom->cmd)*4) : 0 )
  */
 void r300InitCmdBuf(r300ContextPtr r300)
 {
-	int size;
+	int size, i, mtu;
 
 	r300->hw.max_state_size = 0;
+	
+	mtu = r300->radeon.glCtx->Const.MaxTextureUnits;
+	fprintf(stderr, "Using %d maximum texture units..\n", mtu);
 
 	/* Initialize state atoms */
 	ALLOC_STATE( vpt, always, R300_VPT_CMDSIZE, "vpt", 0 );
@@ -408,6 +411,29 @@ void r300InitCmdBuf(r300ContextPtr r300)
 	ALLOC_STATE( vps, vpu, R300_VPS_CMDSIZE, "vps", 0 );
 		r300->hw.vps.cmd[R300_VPS_CMD_0] = cmdvpu(R300_PVS_UPLOAD_POINTSIZE, 1);
 
+	/* Textures */
+	ALLOC_STATE( tex.filter, always, mtu, "tex_filter", 0 );
+		r300->hw.tex.filter.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_FILTER_0, mtu-1);
+		
+	ALLOC_STATE( tex.unknown1, always, mtu, "tex_unknown1", 0 );
+		r300->hw.tex.unknown1.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_UNK1_0, mtu-1);
+		
+	ALLOC_STATE( tex.size, always, mtu, "tex_size", 0 );
+		r300->hw.tex.size.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_SIZE_0, mtu-1);
+		
+	ALLOC_STATE( tex.format, always, mtu, "tex_format", 0 );
+		r300->hw.tex.format.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_FORMAT_0, mtu-1);
+		
+	ALLOC_STATE( tex.offset, always, mtu, "tex_offset", 0 );
+		r300->hw.tex.offset.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_OFFSET_0, mtu-1);
+		
+	ALLOC_STATE( tex.unknown4, always, mtu, "tex_unknown4", 0 );
+		r300->hw.tex.unknown4.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_UNK4_0, mtu-1);
+		
+	ALLOC_STATE( tex.unknown5, always, mtu, "tex_unknown5", 0 );
+		r300->hw.tex.unknown5.cmd[R300_TEX_CMD_0] = cmducs(R300_TX_UNK5_0, mtu-1);
+	
+
 	/* Setup the atom linked list */
 	make_empty_list(&r300->hw.atomlist);
 	r300->hw.atomlist.name = "atom-list";
@@ -477,6 +503,14 @@ void r300InitCmdBuf(r300ContextPtr r300)
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.vpp);
 	insert_at_tail(&r300->hw.atomlist, &r300->hw.vps);
 
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.filter);	
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.unknown1);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.size);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.format);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.offset);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.unknown4);
+	insert_at_tail(&r300->hw.atomlist, &r300->hw.tex.unknown5);
+
 	r300->hw.is_dirty = GL_TRUE;
 	r300->hw.all_dirty = GL_TRUE;
 
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h
index cde2669a508..b5d821225a3 100644
--- a/src/mesa/drivers/dri/r300/r300_context.h
+++ b/src/mesa/drivers/dri/r300/r300_context.h
@@ -66,6 +66,55 @@ static __inline__ uint32_t r300PackFloat32(float fl)
 	return u.u;
 }
 
+       /* Texture related */
+
+#define TEX_0   0x1
+#define TEX_1   0x2
+#define TEX_2	0x4
+#define TEX_3	0x8
+#define TEX_4	0x10
+#define TEX_5	0x20
+#define TEX_6	0x20
+#define TEX_7	0x20
+#define TEX_ALL 0xff
+
+typedef struct r300_tex_obj r300TexObj, *r300TexObjPtr;
+
+/* Texture object in locally shared texture space.
+ */
+struct r300_tex_obj {
+	driTextureObject base;
+
+	GLuint bufAddr;		/* Offset to start of locally
+				   shared texture block */
+
+	GLuint dirty_state;	/* Flags (1 per texunit) for
+				   whether or not this texobj
+				   has dirty hardware state
+				   (pp_*) that needs to be
+				   brought into the
+				   texunit. */
+
+	drm_radeon_tex_image_t image[6][RADEON_MAX_TEXTURE_LEVELS];
+	/* Six, for the cube faces */
+
+
+	/* hardware register values */
+	/* Note that R200 has 8 registers per texture and R300 only 7 */
+	GLuint filter;	
+	GLuint pitch; /* one of the unknown registers.. unknown 1 ?*/
+	GLuint size;	/* npot only */
+	GLuint format;
+	GLuint offset;	/* Image location in texmem.
+				   All cube faces follow. */
+	GLuint unknown4;
+	GLuint unknown5; 
+	/* end hardware registers */
+	
+	GLboolean border_fallback;
+};
+
+
 /**
  * A block of hardware state.
  *
@@ -233,6 +282,13 @@ struct r300_state_atom {
 #define R300_VPS_ZERO_3		4
 #define R300_VPS_CMDSIZE	5
 
+	/* the layout is common for all fields inside tex */
+#define R300_TEX_CMD_0		0
+#define R300_TEX_VALUE_0	1
+/* We don't really use this, instead specify mtu+1 dynamically 
+#define R300_TEX_CMDSIZE	(MAX_TEXTURE_UNITS+1)
+*/
+
 /**
  * Cache for hardware register state.
  */
@@ -303,6 +359,21 @@ struct r300_hw_state {
 	struct r300_state_atom vpi;	/* vp instructions */
 	struct r300_state_atom vpp;	/* vp parameters */
 	struct r300_state_atom vps;	/* vertex point size (?) */
+
+		/* 8 texture units */
+		/* the state is grouped by function and not by 
+		   texture unit. This makes single unit updates
+		   really awkward - we are much better off 
+		   updating the whole thing at once */
+	struct {
+		struct r300_state_atom filter;
+		struct r300_state_atom unknown1;
+		struct r300_state_atom size;
+		struct r300_state_atom format;
+		struct r300_state_atom offset;
+		struct r300_state_atom unknown4;
+		struct r300_state_atom unknown5;		
+		} tex;
 };
 
 
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 574c24081bf..a233022e6c4 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -547,8 +547,19 @@ void r300ResetHwState(r300ContextPtr r300)
 	r300->hw.vps.cmd[R300_VPS_ZERO_1] = 0;
 	r300->hw.vps.cmd[R300_VPS_POINTSIZE] = r300PackFloat32(1.0);
 	r300->hw.vps.cmd[R300_VPS_ZERO_3] = 0;
+	
+	/* Initialize texture units */
+	for(i=0;i<r300->radeon.glCtx->Const.MaxTextureUnits;i++){
+		r300->hw.tex.filter.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.unknown1.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.size.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.format.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.offset.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.unknown4.cmd[R300_TEX_VALUE_0+i]=0x0;
+		r300->hw.tex.unknown5.cmd[R300_TEX_VALUE_0+i]=0x0;
+		}
 //END: TODO
-
+	
 	r300->hw.all_dirty = GL_TRUE;
 }