New driver for i915 as well as older i830/i845/i865 chipsets.

1 files changed, 426 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i915/i830_vtbl.c b/src/mesa/drivers/dri/i915/i830_vtbl.c
new file mode 100644
index 0000000000..5fb436fb26
--- /dev/null
+++ b/src/mesa/drivers/dri/i915/i830_vtbl.c
@@ -0,0 +1,426 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ **************************************************************************/
+
+
+#include "i830_context.h"
+#include "i830_reg.h"
+
+#include "intel_batchbuffer.h"
+
+#include "tnl/t_context.h"
+#include "tnl/t_vertex.h"
+
+static GLboolean i830_check_vertex_size( intelContextPtr intel,
+					 GLuint expected );
+
+#define SZ_TO_HW(sz)  ((sz-2)&0x3)
+#define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
+#define EMIT_ATTR( ATTR, STYLE, V0 )					\
+do {									\
+   intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);	\
+   intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);	\
+   intel->vertex_attr_count++;						\
+   v0 |= V0;								\
+} while (0)
+
+#define EMIT_PAD( N )							\
+do {									\
+   intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;		\
+   intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;	\
+   intel->vertex_attrs[intel->vertex_attr_count].offset = (N);		\
+   intel->vertex_attr_count++;						\
+} while (0)
+
+
+#define VRTX_TEX_SET_FMT(n, x)          ((x)<<((n)*2))
+#define TEXBIND_SET(n, x) 		((x)<<((n)*4))
+
+static void i830_render_start( intelContextPtr intel )
+{
+   GLcontext *ctx = &intel->ctx;
+   i830ContextPtr i830 = I830_CONTEXT(intel);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct vertex_buffer *VB = &tnl->vb;
+   GLuint index = tnl->render_inputs;
+   GLuint v0 = _3DSTATE_VFT0_CMD;
+   GLuint v2 = _3DSTATE_VFT1_CMD;
+   GLuint mcsb1 = 0;
+
+   /* Important:
+    */
+   VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
+   intel->vertex_attr_count = 0;
+
+   /* EMIT_ATTR's must be in order as they tell t_vertex.c how to
+    * build up a hardware vertex.
+    */
+   if (index & _TNL_BITS_TEX_ANY) {
+      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_4F_VIEWPORT, VFT0_XYZW );
+      intel->coloroffset = 4;
+   }
+   else {
+      EMIT_ATTR( _TNL_ATTRIB_POS, EMIT_3F_VIEWPORT, VFT0_XYZ );
+      intel->coloroffset = 3;
+   }
+
+   EMIT_ATTR( _TNL_ATTRIB_COLOR0, EMIT_4UB_4F_RGBA, VFT0_DIFFUSE );
+      
+   intel->specoffset = 0;
+   if (index & (_TNL_BIT_COLOR1|_TNL_BIT_FOG)) {
+      if (index & _TNL_BIT_COLOR1) {
+	 intel->specoffset = intel->coloroffset + 1;
+	 EMIT_ATTR( _TNL_ATTRIB_COLOR1, EMIT_3UB_3F_RGB, VFT0_SPEC );
+      }
+      else 
+	 EMIT_PAD( 3 );
+      
+      if (index & _TNL_BIT_FOG)
+	 EMIT_ATTR( _TNL_ATTRIB_FOG, EMIT_1UB_1F, VFT0_SPEC );
+      else
+	 EMIT_PAD( 1 );
+   }
+
+   if (index & _TNL_BITS_TEX_ANY) {
+      int i, count = 0;
+
+      for (i = 0; i < I830_TEX_UNITS; i++) {
+ 	 if (index & _TNL_BIT_TEX(i)) {
+	    GLuint sz = VB->TexCoordPtr[i]->size;
+	    GLuint emit;
+	    GLuint mcs = (i830->state.Tex[i][I830_TEXREG_MCS] & 
+			  ~TEXCOORDTYPE_MASK);
+
+	    switch (sz) {
+	    case 1: 
+	    case 2: 
+	    case 3:		/* XXX: fix for CUBE/VOLUME textures */
+	       emit = EMIT_2F; 
+	       sz = 2; 
+	       mcs |= TEXCOORDTYPE_CARTESIAN; 
+	       break;
+	    case 4: 
+	       emit = EMIT_3F_XYW; 
+	       sz = 3;     
+	       mcs |= TEXCOORDTYPE_HOMOGENEOUS;
+	       break;
+	    default: 
+	       continue;
+	    };
+	      
+
+	    EMIT_ATTR( _TNL_ATTRIB_TEX0+i, emit, 0 );	       
+	    v2 |= VRTX_TEX_SET_FMT(count, SZ_TO_HW(sz));
+	    mcsb1 |= (count+8)<<(i*4);
+
+	    if (mcs != i830->state.Tex[i][I830_TEXREG_MCS]) {
+	       I830_STATECHANGE(i830, I830_UPLOAD_TEX(i));
+	       i830->state.Tex[i][I830_TEXREG_MCS] = mcs;
+	    }
+
+	    count++;
+	 }
+      }
+
+      v0 |= VFT0_TEX_COUNT(count);
+   }
+   
+   /* Only need to change the vertex emit code if there has been a
+    * statechange to a new hardware vertex format:
+    */
+   if (v0 != i830->state.Ctx[I830_CTXREG_VF] ||
+       v2 != i830->state.Ctx[I830_CTXREG_VF2] ||
+       mcsb1 != i830->state.Ctx[I830_CTXREG_MCSB1] ||
+       index != i830->last_index) {
+    
+      I830_STATECHANGE( i830, I830_UPLOAD_CTX );
+
+      /* Must do this *after* statechange, so as not to affect
+       * buffered vertices reliant on the old state:
+       */
+      intel->vertex_size = 
+	 _tnl_install_attrs( ctx, 
+			     intel->vertex_attrs, 
+			     intel->vertex_attr_count,
+			     intel->ViewportMatrix.m, 0 );
+
+      intel->vertex_size >>= 2;
+
+      i830->state.Ctx[I830_CTXREG_VF] = v0;
+      i830->state.Ctx[I830_CTXREG_VF2] = v2;
+      i830->state.Ctx[I830_CTXREG_MCSB1] = mcsb1;
+      i830->last_index = index;
+
+      assert(i830_check_vertex_size( intel, intel->vertex_size ));
+   }
+}
+
+static void i830_reduced_primitive_state( intelContextPtr intel,
+					  GLenum rprim )
+{
+    i830ContextPtr i830 = I830_CONTEXT(intel);
+    GLuint st1 = i830->state.Stipple[I830_STPREG_ST1];
+
+    st1 &= ~ST1_ENABLE;
+
+    switch (rprim) {
+    case GL_TRIANGLES:
+       if (intel->ctx.Polygon.StippleFlag &&
+	   intel->hw_stipple)
+	  st1 |= ST1_ENABLE;
+       break;
+    case GL_LINES:
+    case GL_POINTS:
+    default:
+       break;
+    }
+
+    i830->intel.reduced_primitive = rprim;
+
+    if (st1 != i830->state.Stipple[I830_STPREG_ST1]) {
+       I830_STATECHANGE(i830, I830_UPLOAD_STIPPLE);
+       i830->state.Stipple[I830_STPREG_ST1] = st1;
+    }
+}
+
+/* Pull apart the vertex format registers and figure out how large a
+ * vertex is supposed to be. 
+ */
+static GLboolean i830_check_vertex_size( intelContextPtr intel,
+					 GLuint expected )
+{
+   i830ContextPtr i830 = I830_CONTEXT(intel);
+   int vft0 = i830->current->Ctx[I830_CTXREG_VF];
+   int vft1 = i830->current->Ctx[I830_CTXREG_VF2];
+   int nrtex = (vft0 & VFT0_TEX_COUNT_MASK) >> VFT0_TEX_COUNT_SHIFT;
+   int i, sz = 0;
+
+   switch (vft0 & VFT0_XYZW_MASK) {
+   case VFT0_XY: sz = 2; break;
+   case VFT0_XYZ: sz = 3; break;
+   case VFT0_XYW: sz = 3; break;
+   case VFT0_XYZW: sz = 4; break;
+   default: 
+      fprintf(stderr, "no xyzw specified\n");
+      return 0;
+   }
+
+   if (vft0 & VFT0_SPEC) sz++;
+   if (vft0 & VFT0_DIFFUSE) sz++;
+   if (vft0 & VFT0_DEPTH_OFFSET) sz++;
+   if (vft0 & VFT0_POINT_WIDTH) sz++;
+	
+   for (i = 0 ; i < nrtex ; i++) { 
+      switch (vft1 & VFT1_TEX0_MASK) {
+      case TEXCOORDFMT_2D: sz += 2; break;
+      case TEXCOORDFMT_3D: sz += 3; break;
+      case TEXCOORDFMT_4D: sz += 4; break;
+      case TEXCOORDFMT_1D: sz += 1; break;
+      }
+      vft1 >>= VFT1_TEX1_SHIFT;
+   }
+	
+   if (sz != expected) 
+      fprintf(stderr, "vertex size mismatch %d/%d\n", sz, expected);
+   
+   return sz == expected;
+}
+
+static void i830_emit_invarient_state( intelContextPtr intel )
+{
+   BATCH_LOCALS;
+
+   BEGIN_BATCH( 200 );
+
+   OUT_BATCH(_3DSTATE_MAP_CUBE | MAP_UNIT(0));
+   OUT_BATCH(_3DSTATE_MAP_CUBE | MAP_UNIT(1));
+   OUT_BATCH(_3DSTATE_MAP_CUBE | MAP_UNIT(2));
+   OUT_BATCH(_3DSTATE_MAP_CUBE | MAP_UNIT(3));
+
+   OUT_BATCH(_3DSTATE_DFLT_DIFFUSE_CMD);
+   OUT_BATCH(0);
+
+   OUT_BATCH(_3DSTATE_DFLT_SPEC_CMD);
+   OUT_BATCH(0);
+
+   OUT_BATCH(_3DSTATE_DFLT_Z_CMD);
+   OUT_BATCH(0);
+
+   OUT_BATCH(_3DSTATE_FOG_MODE_CMD);
+   OUT_BATCH(FOGFUNC_ENABLE |
+	     FOG_LINEAR_CONST | 
+	     FOGSRC_INDEX_Z | 
+	     ENABLE_FOG_DENSITY);
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+
+
+   OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD |
+	     MAP_UNIT(0) |
+	     DISABLE_TEX_STREAM_BUMP |
+	     ENABLE_TEX_STREAM_COORD_SET |
+	     TEX_STREAM_COORD_SET(0) |
+	     ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(0));
+   OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD |
+	     MAP_UNIT(1) |
+	     DISABLE_TEX_STREAM_BUMP |
+	     ENABLE_TEX_STREAM_COORD_SET |
+	     TEX_STREAM_COORD_SET(1) |
+	     ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(1));
+   OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD |
+	     MAP_UNIT(2) |
+	     DISABLE_TEX_STREAM_BUMP |
+	     ENABLE_TEX_STREAM_COORD_SET |
+	     TEX_STREAM_COORD_SET(2) |
+	     ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(2));
+   OUT_BATCH(_3DSTATE_MAP_TEX_STREAM_CMD |
+	     MAP_UNIT(3) |
+	     DISABLE_TEX_STREAM_BUMP |
+	     ENABLE_TEX_STREAM_COORD_SET |
+	     TEX_STREAM_COORD_SET(3) |
+	     ENABLE_TEX_STREAM_MAP_IDX | TEX_STREAM_MAP_IDX(3));
+
+   OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM);
+   OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(0));
+   OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM);
+   OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(1));
+   OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM);
+   OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(2));
+   OUT_BATCH(_3DSTATE_MAP_COORD_TRANSFORM);
+   OUT_BATCH(DISABLE_TEX_TRANSFORM | TEXTURE_SET(3));
+
+   OUT_BATCH(_3DSTATE_RASTER_RULES_CMD |
+	     ENABLE_POINT_RASTER_RULE |
+	     OGL_POINT_RASTER_RULE |
+	     ENABLE_LINE_STRIP_PROVOKE_VRTX |
+	     ENABLE_TRI_FAN_PROVOKE_VRTX |
+	     ENABLE_TRI_STRIP_PROVOKE_VRTX |
+	     LINE_STRIP_PROVOKE_VRTX(1) |
+	     TRI_FAN_PROVOKE_VRTX(2) | 
+	     TRI_STRIP_PROVOKE_VRTX(2));
+
+   OUT_BATCH(_3DSTATE_SCISSOR_ENABLE_CMD | 
+	     DISABLE_SCISSOR_RECT);
+
+   OUT_BATCH(_3DSTATE_SCISSOR_RECT_0_CMD);
+   OUT_BATCH(0);
+   OUT_BATCH(0);
+
+   OUT_BATCH(_3DSTATE_VERTEX_TRANSFORM);
+   OUT_BATCH(DISABLE_VIEWPORT_TRANSFORM | DISABLE_PERSPECTIVE_DIVIDE);
+
+   OUT_BATCH(_3DSTATE_W_STATE_CMD);
+   OUT_BATCH(MAGIC_W_STATE_DWORD1);
+   OUT_BATCH(0x3f800000 /* 1.0 in IEEE float */ );
+
+
+   OUT_BATCH(_3DSTATE_COLOR_FACTOR_CMD);
+   OUT_BATCH(0x80808080);	/* .5 required in alpha for GL_DOT3_RGBA_EXT */
+
+   ADVANCE_BATCH();
+}
+
+
+#define emit( intel, state, size )			\
+do {							\
+   int k;						\
+   BEGIN_BATCH( size / sizeof(GLuint));			\
+   for (k = 0 ; k < size / sizeof(GLuint) ; k++)	\
+      OUT_BATCH(state[k]);				\
+   ADVANCE_BATCH();					\
+} while (0);
+
+
+/* Push the state into the sarea and/or texture memory.
+ */
+static void i830_emit_state( intelContextPtr intel )
+{
+   i830ContextPtr i830 = I830_CONTEXT(intel);
+   struct i830_hw_state *state = i830->current;
+   BATCH_LOCALS;
+   int i;
+   GLuint dirty = state->active & ~state->emitted;
+
+   if (dirty & I830_UPLOAD_CTX) {
+      if (VERBOSE) fprintf(stderr, "I830_UPLOAD_CTX:\n"); 
+      emit( i830, state->Ctx, sizeof(state->Ctx) );
+   }
+
+   if (dirty & I830_UPLOAD_BUFFERS) {
+      if (VERBOSE) fprintf(stderr, "I830_UPLOAD_BUFFERS:\n"); 
+      emit( i830, state->Buffer, sizeof(state->Buffer) );
+   }
+
+   if (dirty & I830_UPLOAD_STIPPLE) {
+      if (VERBOSE) fprintf(stderr, "I830_UPLOAD_STIPPLE:\n"); 
+      emit( i830, state->Stipple, sizeof(state->Stipple) );
+   }
+
+   for (i = 0; i < I830_TEX_UNITS; i++) {
+      if ((dirty & I830_UPLOAD_TEX(i))) { 
+ 	 if (VERBOSE) fprintf(stderr, "I830_UPLOAD_TEX(%d):\n", i); 
+	 emit( i830, state->Tex[i], sizeof(state->Tex[i])); 
+      } 
+
+      if (dirty & I830_UPLOAD_TEXBLEND(i)) {
+	 if (VERBOSE) fprintf(stderr, "I830_UPLOAD_TEXBLEND(%d):\n", i); 
+	 emit( i830, state->TexBlend[i], 
+	       state->TexBlendWordsUsed[i] * 4 );
+      }
+   }
+
+   state->emitted |= dirty;
+}
+
+static void i830_destroy_context( intelContextPtr intel )
+{
+   _tnl_free_vertices(&intel->ctx);
+}
+
+static void i830_set_draw_offset( intelContextPtr intel, int offset )
+{
+   i830ContextPtr i830 = I830_CONTEXT(intel);
+   I830_STATECHANGE( i830, I830_UPLOAD_BUFFERS );
+   i830->state.Buffer[I830_DESTREG_CBUFADDR2] = offset;
+}
+
+/* This isn't really handled at the moment.
+ */
+static void i830_lost_hardware( intelContextPtr intel )
+{
+   I830_CONTEXT(intel)->state.emitted = 0;
+}
+
+
+
+static void i830_emit_flush( intelContextPtr intel )
+{
+   BATCH_LOCALS;
+
+   BEGIN_BATCH(2);
+   OUT_BATCH( MI_FLUSH | FLUSH_MAP_CACHE ); 
+   OUT_BATCH( 0 );
+   ADVANCE_BATCH();
+}
+
+
+
+
+void i830InitVtbl( i830ContextPtr i830 )
+{
+   i830->intel.vtbl.alloc_tex_obj = i830AllocTexObj;
+   i830->intel.vtbl.check_vertex_size = i830_check_vertex_size;
+   i830->intel.vtbl.clear_with_tris = i830ClearWithTris;
+   i830->intel.vtbl.destroy = i830_destroy_context;
+   i830->intel.vtbl.emit_invarient_state = i830_emit_invarient_state;
+   i830->intel.vtbl.emit_state = i830_emit_state;
+   i830->intel.vtbl.lost_hardware = i830_lost_hardware;
+   i830->intel.vtbl.reduced_primitive_state = i830_reduced_primitive_state;
+   i830->intel.vtbl.set_draw_offset = i830_set_draw_offset;
+   i830->intel.vtbl.update_texture_state = i830UpdateTextureState;
+   i830->intel.vtbl.emit_flush = i830_emit_flush;
+   i830->intel.vtbl.render_start = i830_render_start;
+}