Remove the old i915 driver now that i915tex works without TTM.

1 files changed, 0 insertions, 465 deletions

diff --git a/src/mesa/drivers/dri/i915/i830_texblend.c b/src/mesa/drivers/dri/i915/i830_texblend.c
deleted file mode 100644
index 49e0347643c..00000000000
--- a/src/mesa/drivers/dri/i915/i830_texblend.c
+++ /dev/null
@@ -1,465 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- * 
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- **************************************************************************/
-
-#include "glheader.h"
-#include "macros.h"
-#include "mtypes.h"
-#include "simple_list.h"
-#include "enums.h"
-#include "texformat.h"
-#include "texstore.h"
-
-#include "mm.h"
-
-#include "intel_screen.h"
-#include "intel_ioctl.h"
-#include "intel_tex.h"
-
-#include "i830_context.h"
-#include "i830_reg.h"
-
-
-/* ================================================================
- * Texture combine functions
- */
-static GLuint pass_through( GLuint *state, GLuint blendUnit )
-{
-   state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
-	       TEXPIPE_COLOR |
-	       ENABLE_TEXOUTPUT_WRT_SEL |
-	       TEXOP_OUTPUT_CURRENT |
-	       DISABLE_TEX_CNTRL_STAGE |
-	       TEXOP_SCALE_1X |
-	       TEXOP_MODIFY_PARMS |
-	       TEXBLENDOP_ARG1);
-   state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
-	       TEXPIPE_ALPHA |
-	       ENABLE_TEXOUTPUT_WRT_SEL |
-	       TEXOP_OUTPUT_CURRENT |
-	       TEXOP_SCALE_1X |
-	       TEXOP_MODIFY_PARMS |
-	       TEXBLENDOP_ARG1);
-   state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
-	       TEXPIPE_COLOR |
-	       TEXBLEND_ARG1 |
-	       TEXBLENDARG_MODIFY_PARMS |
-	       TEXBLENDARG_CURRENT);
-   state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
-	       TEXPIPE_ALPHA |
-	       TEXBLEND_ARG1 |
-	       TEXBLENDARG_MODIFY_PARMS |
-	       TEXBLENDARG_CURRENT);
-
-   return 4;
-}
-
-static GLuint emit_factor( GLuint blendUnit, GLuint *state, GLuint count, 
-			   const GLfloat *factor )
-{
-   GLubyte r, g, b, a;
-   GLuint col;
-      
-   if (0)
-      fprintf(stderr, "emit constant %d: %.2f %.2f %.2f %.2f\n",
-	  blendUnit, factor[0], factor[1], factor[2], factor[3]);
-
-   UNCLAMPED_FLOAT_TO_UBYTE(r, factor[0]);
-   UNCLAMPED_FLOAT_TO_UBYTE(g, factor[1]);
-   UNCLAMPED_FLOAT_TO_UBYTE(b, factor[2]);
-   UNCLAMPED_FLOAT_TO_UBYTE(a, factor[3]);
-
-   col = ((a << 24) | (r << 16) | (g << 8) | b);
-
-   state[count++] = _3DSTATE_COLOR_FACTOR_N_CMD(blendUnit); 
-   state[count++] = col;
-
-   return count;
-}
-
-
-static __inline__ GLuint GetTexelOp(GLint unit)
-{
-   switch(unit) {
-   case 0: return TEXBLENDARG_TEXEL0;
-   case 1: return TEXBLENDARG_TEXEL1;
-   case 2: return TEXBLENDARG_TEXEL2;
-   case 3: return TEXBLENDARG_TEXEL3;
-   default: return TEXBLENDARG_TEXEL0;
-   }
-}
-
-
-/**
- * Calculate the hardware instuctions to setup the current texture enviromnemt
- * settings.  Since \c gl_texture_unit::_CurrentCombine is used, both
- * "classic" texture enviroments and GL_ARB_texture_env_combine type texture
- * environments are treated identically.
- *
- * \todo
- * This function should return \c GLboolean.  When \c GL_FALSE is returned,
- * it means that an environment is selected that the hardware cannot do.  This
- * is the way the Radeon and R200 drivers work.
- * 
- * \todo
- * Looking at i830_3d_regs.h, it seems the i830 can do part of
- * GL_ATI_texture_env_combine3.  It can handle using \c GL_ONE and
- * \c GL_ZERO as combine inputs (which the code already supports).  It can
- * also handle the \c GL_MODULATE_ADD_ATI mode.  Is it worth investigating
- * partial support for the extension?
- */
-GLuint
-i830SetTexEnvCombine(i830ContextPtr i830,
-		     const struct gl_tex_env_combine_state * combine,
-		     GLint blendUnit,
-		     GLuint texel_op,
-		     GLuint *state,
-		     const GLfloat *factor )
-{
-   const GLuint numColorArgs = combine->_NumArgsRGB;
-   const GLuint numAlphaArgs = combine->_NumArgsA;
-
-   GLuint blendop;
-   GLuint ablendop;
-   GLuint args_RGB[3];
-   GLuint args_A[3];
-   GLuint rgb_shift;
-   GLuint alpha_shift;
-   GLboolean need_factor = 0;
-   int i;
-   unsigned used;
-   static const GLuint tex_blend_rgb[3] = {
-      TEXPIPE_COLOR | TEXBLEND_ARG1 | TEXBLENDARG_MODIFY_PARMS,
-      TEXPIPE_COLOR | TEXBLEND_ARG2 | TEXBLENDARG_MODIFY_PARMS,
-      TEXPIPE_COLOR | TEXBLEND_ARG0 | TEXBLENDARG_MODIFY_PARMS,
-   };
-   static const GLuint tex_blend_a[3] = {
-      TEXPIPE_ALPHA | TEXBLEND_ARG1 | TEXBLENDARG_MODIFY_PARMS,
-      TEXPIPE_ALPHA | TEXBLEND_ARG2 | TEXBLENDARG_MODIFY_PARMS,
-      TEXPIPE_ALPHA | TEXBLEND_ARG0 | TEXBLENDARG_MODIFY_PARMS,
-   };
-
-   if(INTEL_DEBUG&DEBUG_TEXTURE)
-      fprintf(stderr, "%s\n", __FUNCTION__);
-
-
-   /* The EXT version of the DOT3 extension does not support the
-    * scale factor, but the ARB version (and the version in OpenGL
-    * 1.3) does.
-    */
-   switch (combine->ModeRGB) {
-   case GL_DOT3_RGB_EXT:
-      alpha_shift = combine->ScaleShiftA;
-      rgb_shift = 0;
-      break;
-
-   case GL_DOT3_RGBA_EXT:
-      alpha_shift = 0;
-      rgb_shift = 0;
-      break;
-
-   default:
-      rgb_shift = combine->ScaleShiftRGB;
-      alpha_shift = combine->ScaleShiftA;
-      break;
-   }
-
-
-   switch(combine->ModeRGB) {
-   case GL_REPLACE: 
-      blendop = TEXBLENDOP_ARG1;
-      break;
-   case GL_MODULATE: 
-      blendop = TEXBLENDOP_MODULATE;
-      break;
-   case GL_ADD: 
-      blendop = TEXBLENDOP_ADD;
-      break;
-   case GL_ADD_SIGNED:
-      blendop = TEXBLENDOP_ADDSIGNED; 
-      break;
-   case GL_INTERPOLATE:
-      blendop = TEXBLENDOP_BLEND; 
-      break;
-   case GL_SUBTRACT: 
-      blendop = TEXBLENDOP_SUBTRACT;
-      break;
-   case GL_DOT3_RGB_EXT:
-   case GL_DOT3_RGB:
-      blendop = TEXBLENDOP_DOT3;
-      break;
-   case GL_DOT3_RGBA_EXT:
-   case GL_DOT3_RGBA:
-      blendop = TEXBLENDOP_DOT3;
-      break;
-   default: 
-      return pass_through( state, blendUnit );
-   }
-
-   blendop |= (rgb_shift << TEXOP_SCALE_SHIFT);
-
-
-   /* Handle RGB args */
-   for(i = 0; i < 3; i++) {
-      switch(combine->SourceRGB[i]) {
-      case GL_TEXTURE: 
-	 args_RGB[i] = texel_op;
-	 break;
-      case GL_TEXTURE0:
-      case GL_TEXTURE1:
-      case GL_TEXTURE2:
-      case GL_TEXTURE3:
-	 args_RGB[i] = GetTexelOp( combine->SourceRGB[i] - GL_TEXTURE0 );
-	 break;
-      case GL_CONSTANT:
-	 args_RGB[i] = TEXBLENDARG_FACTOR_N; 
-	 need_factor = 1;
-	 break;
-      case GL_PRIMARY_COLOR:
-	 args_RGB[i] = TEXBLENDARG_DIFFUSE;
-	 break;
-      case GL_PREVIOUS:
-	 args_RGB[i] = TEXBLENDARG_CURRENT; 
-	 break;
-      default: 
-	 return pass_through( state, blendUnit );
-      }
-
-      switch(combine->OperandRGB[i]) {
-      case GL_SRC_COLOR: 
-	 args_RGB[i] |= 0;
-	 break;
-      case GL_ONE_MINUS_SRC_COLOR: 
-	 args_RGB[i] |= TEXBLENDARG_INV_ARG;
-	 break;
-      case GL_SRC_ALPHA: 
-	 args_RGB[i] |= TEXBLENDARG_REPLICATE_ALPHA;
-	 break;
-      case GL_ONE_MINUS_SRC_ALPHA: 
-	 args_RGB[i] |= (TEXBLENDARG_REPLICATE_ALPHA | 
-			 TEXBLENDARG_INV_ARG);
-	 break;
-      default: 
-	 return pass_through( state, blendUnit );
-      }
-   }
-
-
-   /* Need to knobble the alpha calculations of TEXBLENDOP_DOT4 to
-    * match the spec.  Can't use DOT3 as it won't propogate values
-    * into alpha as required:
-    *
-    * Note - the global factor is set up with alpha == .5, so 
-    * the alpha part of the DOT4 calculation should be zero.
-    */
-   if ( combine->ModeRGB == GL_DOT3_RGBA_EXT || 
-	combine->ModeRGB == GL_DOT3_RGBA ) {
-      ablendop = TEXBLENDOP_DOT4;
-      args_A[0] = TEXBLENDARG_FACTOR; /* the global factor */
-      args_A[1] = TEXBLENDARG_FACTOR;
-      args_A[2] = TEXBLENDARG_FACTOR;
-   }
-   else {
-      switch(combine->ModeA) {
-      case GL_REPLACE: 
-	 ablendop = TEXBLENDOP_ARG1;
-	 break;
-      case GL_MODULATE: 
-	 ablendop = TEXBLENDOP_MODULATE;
-	 break;
-      case GL_ADD: 
-	 ablendop = TEXBLENDOP_ADD;
-	 break;
-      case GL_ADD_SIGNED:
-	 ablendop = TEXBLENDOP_ADDSIGNED; 
-	 break;
-      case GL_INTERPOLATE:
-	 ablendop = TEXBLENDOP_BLEND; 
-	 break;
-      case GL_SUBTRACT: 
-	 ablendop = TEXBLENDOP_SUBTRACT;
-	 break;
-      default:
-	 return pass_through( state, blendUnit );
-      }
-
-
-      ablendop |= (alpha_shift << TEXOP_SCALE_SHIFT);
-
-      /* Handle A args */
-      for(i = 0; i < 3; i++) {
-	 switch(combine->SourceA[i]) {
-	 case GL_TEXTURE: 
-	    args_A[i] = texel_op;
-	    break;
-	 case GL_TEXTURE0:
-	 case GL_TEXTURE1:
-	 case GL_TEXTURE2:
-	 case GL_TEXTURE3:
-	    args_A[i] = GetTexelOp( combine->SourceA[i] - GL_TEXTURE0 );
-	    break;
-	 case GL_CONSTANT:
-	    args_A[i] = TEXBLENDARG_FACTOR_N; 
-	    need_factor = 1;
-	    break;
-	 case GL_PRIMARY_COLOR:
-	    args_A[i] = TEXBLENDARG_DIFFUSE; 
-	    break;
-	 case GL_PREVIOUS:
-	    args_A[i] = TEXBLENDARG_CURRENT; 
-	    break;
-	 default: 
-	    return pass_through( state, blendUnit );
-	 }
-
-	 switch(combine->OperandA[i]) {
-	 case GL_SRC_ALPHA: 
-	    args_A[i] |= 0;
-	    break;
-	 case GL_ONE_MINUS_SRC_ALPHA: 
-	    args_A[i] |= TEXBLENDARG_INV_ARG;
-	    break;
-	 default: 
-	    return pass_through( state, blendUnit );
-	 }
-      }
-   }
-
-
-
-   /* Native Arg1 == Arg0 in GL_EXT_texture_env_combine spec */
-   /* Native Arg2 == Arg1 in GL_EXT_texture_env_combine spec */
-   /* Native Arg0 == Arg2 in GL_EXT_texture_env_combine spec */
-
-   /* When we render we need to figure out which is the last really enabled
-    * tex unit, and put last stage on it
-    */
-
-
-   /* Build color & alpha pipelines */
-
-   used = 0;
-   state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
-		    TEXPIPE_COLOR |
-		    ENABLE_TEXOUTPUT_WRT_SEL |
-		    TEXOP_OUTPUT_CURRENT |
-		    DISABLE_TEX_CNTRL_STAGE |
-		    TEXOP_MODIFY_PARMS |
-		    blendop);
-   state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) |
-		    TEXPIPE_ALPHA |
-		    ENABLE_TEXOUTPUT_WRT_SEL |
-		    TEXOP_OUTPUT_CURRENT |
-		    TEXOP_MODIFY_PARMS |
-		    ablendop);
-
-   for ( i = 0 ; i < numColorArgs ; i++ ) {
-      state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
-		       tex_blend_rgb[i] | args_RGB[i]);
-   }
-
-   for ( i = 0 ; i < numAlphaArgs ; i++ ) {
-      state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) |
-		       tex_blend_a[i] | args_A[i]);
-   }
-
-
-   if (need_factor) 
-      return emit_factor( blendUnit, state, used, factor );
-   else 
-      return used;
-}
-
-
-static void emit_texblend( i830ContextPtr i830, GLuint unit, GLuint blendUnit,
-			   GLboolean last_stage )
-{
-   struct gl_texture_unit *texUnit = &i830->intel.ctx.Texture.Unit[unit];
-   GLuint tmp[I830_TEXBLEND_SIZE], tmp_sz;
-
-
-   if (0) fprintf(stderr, "%s unit %d\n", __FUNCTION__, unit);
-
-   /* Update i830->state.TexBlend
-    */ 
-   tmp_sz = i830SetTexEnvCombine(i830, texUnit->_CurrentCombine, blendUnit, 
-				 GetTexelOp(unit), tmp,
-				 texUnit->EnvColor );
-
-   if (last_stage) 
-      tmp[0] |= TEXOP_LAST_STAGE;
-
-   if (tmp_sz != i830->state.TexBlendWordsUsed[blendUnit] ||
-       memcmp( tmp, i830->state.TexBlend[blendUnit], tmp_sz * sizeof(GLuint))) {
-      
-      I830_STATECHANGE( i830, I830_UPLOAD_TEXBLEND(blendUnit) );
-      memcpy( i830->state.TexBlend[blendUnit], tmp, tmp_sz * sizeof(GLuint));
-      i830->state.TexBlendWordsUsed[blendUnit] = tmp_sz;
-   }
-
-   I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND(blendUnit), GL_TRUE);
-}
-
-static void emit_passthrough( i830ContextPtr i830 )
-{
-   GLuint tmp[I830_TEXBLEND_SIZE], tmp_sz;
-   GLuint unit = 0;
-
-   tmp_sz = pass_through( tmp, unit );
-   tmp[0] |= TEXOP_LAST_STAGE;
-
-   if (tmp_sz != i830->state.TexBlendWordsUsed[unit] ||
-       memcmp( tmp, i830->state.TexBlend[unit], tmp_sz * sizeof(GLuint))) {
-      
-      I830_STATECHANGE( i830, I830_UPLOAD_TEXBLEND(unit) );
-      memcpy( i830->state.TexBlend[unit], tmp, tmp_sz * sizeof(GLuint));
-      i830->state.TexBlendWordsUsed[unit] = tmp_sz;
-   }
-
-   I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND(unit), GL_TRUE);
-}
-
-void i830EmitTextureBlend( i830ContextPtr i830 )
-{
-   GLcontext *ctx = &i830->intel.ctx;
-   GLuint unit, last_stage = 0, blendunit = 0;
-
-   I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND_ALL, GL_FALSE);
-
-   if (ctx->Texture._EnabledUnits) {
-      for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
-	 if (ctx->Texture.Unit[unit]._ReallyEnabled) 
-	    last_stage = unit;
-
-      for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++)
-	 if (ctx->Texture.Unit[unit]._ReallyEnabled) 
-	    emit_texblend( i830, unit, blendunit++, last_stage == unit );
-   }
-   else {
-      emit_passthrough( i830 );
-   }
-}
-