tdfx_render.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

            /*
            printf("download texture image on unit %d\n", unit);
            */
            tdfxTMDownloadTexture(fxMesa, tObj);
            ti->reloadImages = GL_FALSE;
         }
      }
   }
}



/*
 * If scissoring is enabled, compute intersection of scissor region
 * with all X clip rects, resulting in new cliprect list.
 * If number of cliprects is zero or one, call grClipWindow to setup
 * the clip region.  Otherwise we'll call grClipWindow inside the
 * BEGIN_CLIP_LOOP macro.
 */
void tdfxUploadClipping( tdfxContextPtr fxMesa )
{
   __DRIdrawablePrivate *dPriv = fxMesa->driDrawable;

   assert(dPriv);

   if (fxMesa->numClipRects == 0) {
      /* all drawing clipped away */
      fxMesa->Glide.grClipWindow(0, 0, 0, 0);
   }
   else if (fxMesa->numClipRects == 1) {
      fxMesa->Glide.grClipWindow(fxMesa->pClipRects[0].x1,
                            fxMesa->screen_height - fxMesa->pClipRects[0].y2,
                            fxMesa->pClipRects[0].x2,
                            fxMesa->screen_height - fxMesa->pClipRects[0].y1);
   }
   /* else, we'll do a cliprect loop around all drawing */

   fxMesa->Glide.grDRIPosition( dPriv->x, dPriv->y, dPriv->w, dPriv->h,
                                fxMesa->numClipRects, fxMesa->pClipRects );
}


void tdfxEmitHwStateLocked( tdfxContextPtr fxMesa )
{
   if ( !fxMesa->dirty )
      return;

   if ( fxMesa->dirty & TDFX_UPLOAD_COLOR_COMBINE ) {
      if (TDFX_IS_NAPALM(fxMesa)) {
         fxMesa->Glide.grColorCombineExt(fxMesa->ColorCombineExt.SourceA,
                                         fxMesa->ColorCombineExt.ModeA,
                                         fxMesa->ColorCombineExt.SourceB,
                                         fxMesa->ColorCombineExt.ModeB,
                                         fxMesa->ColorCombineExt.SourceC,
                                         fxMesa->ColorCombineExt.InvertC,
                                         fxMesa->ColorCombineExt.SourceD,
                                         fxMesa->ColorCombineExt.InvertD,
                                         fxMesa->ColorCombineExt.Shift,
                                         fxMesa->ColorCombineExt.Invert);
      }
      else {
         /* Voodoo 3 */
         fxMesa->Glide.grColorCombine( fxMesa->ColorCombine.Function,
                                       fxMesa->ColorCombine.Factor,
                                       fxMesa->ColorCombine.Local,
                                       fxMesa->ColorCombine.Other,
                                       fxMesa->ColorCombine.Invert );
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_COLOR_COMBINE;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_ALPHA_COMBINE ) {
      if (TDFX_IS_NAPALM(fxMesa)) {
         fxMesa->Glide.grAlphaCombineExt(fxMesa->AlphaCombineExt.SourceA,
                                         fxMesa->AlphaCombineExt.ModeA,
                                         fxMesa->AlphaCombineExt.SourceB,
                                         fxMesa->AlphaCombineExt.ModeB,
                                         fxMesa->AlphaCombineExt.SourceC,
                                         fxMesa->AlphaCombineExt.InvertC,
                                         fxMesa->AlphaCombineExt.SourceD,
                                         fxMesa->AlphaCombineExt.InvertD,
                                         fxMesa->AlphaCombineExt.Shift,
                                         fxMesa->AlphaCombineExt.Invert);
      }
      else {
         /* Voodoo 3 */
         fxMesa->Glide.grAlphaCombine( fxMesa->AlphaCombine.Function,
                                       fxMesa->AlphaCombine.Factor,
                                       fxMesa->AlphaCombine.Local,
                                       fxMesa->AlphaCombine.Other,
                                       fxMesa->AlphaCombine.Invert );
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_ALPHA_COMBINE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_RENDER_BUFFER ) {
      fxMesa->Glide.grRenderBuffer( fxMesa->DrawBuffer );
      fxMesa->dirty &= ~TDFX_UPLOAD_RENDER_BUFFER;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_STIPPLE) {
      fxMesa->Glide.grStipplePattern( fxMesa->Stipple.Pattern );
      fxMesa->Glide.grStippleMode( fxMesa->Stipple.Mode );
      fxMesa->dirty &= ~TDFX_UPLOAD_STIPPLE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_ALPHA_TEST ) {
      fxMesa->Glide.grAlphaTestFunction( fxMesa->Color.AlphaFunc );
      fxMesa->dirty &= ~TDFX_UPLOAD_ALPHA_TEST;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_ALPHA_REF ) {
      fxMesa->Glide.grAlphaTestReferenceValue( fxMesa->Color.AlphaRef );
      fxMesa->dirty &= ~TDFX_UPLOAD_ALPHA_REF;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_BLEND_FUNC ) {
      if (fxMesa->Glide.grAlphaBlendFunctionExt) {
         fxMesa->Glide.grAlphaBlendFunctionExt( fxMesa->Color.BlendSrcRGB,
                                                fxMesa->Color.BlendDstRGB,
                                                fxMesa->Color.BlendEqRGB,
                                                fxMesa->Color.BlendSrcA,
                                                fxMesa->Color.BlendDstA,
                                                fxMesa->Color.BlendEqA );
      }
      else {
         fxMesa->Glide.grAlphaBlendFunction( fxMesa->Color.BlendSrcRGB,
                                             fxMesa->Color.BlendDstRGB,
                                             fxMesa->Color.BlendSrcA,
                                             fxMesa->Color.BlendDstA );
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_BLEND_FUNC;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_DEPTH_MODE ) {
      fxMesa->Glide.grDepthBufferMode( fxMesa->Depth.Mode );
      fxMesa->dirty &= ~TDFX_UPLOAD_DEPTH_MODE;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_DEPTH_BIAS ) {
      fxMesa->Glide.grDepthBiasLevel( fxMesa->Depth.Bias );
      fxMesa->dirty &= ~TDFX_UPLOAD_DEPTH_BIAS;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_DEPTH_FUNC ) {
      fxMesa->Glide.grDepthBufferFunction( fxMesa->Depth.Func );
      fxMesa->dirty &= ~TDFX_UPLOAD_DEPTH_FUNC;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_DEPTH_MASK ) {
      fxMesa->Glide.grDepthMask( fxMesa->Depth.Mask );
      fxMesa->dirty &= ~TDFX_UPLOAD_DEPTH_MASK;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_DITHER) {
      fxMesa->Glide.grDitherMode( fxMesa->Color.Dither );
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_FOG_MODE ) {
      fxMesa->Glide.grFogMode( fxMesa->Fog.Mode );
      fxMesa->dirty &= ~TDFX_UPLOAD_FOG_MODE;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_FOG_COLOR ) {
      fxMesa->Glide.grFogColorValue( fxMesa->Fog.Color );
      fxMesa->dirty &= ~TDFX_UPLOAD_FOG_COLOR;
   }
   if ( fxMesa->dirty & TDFX_UPLOAD_FOG_TABLE ) {
      fxMesa->Glide.grFogTable( fxMesa->Fog.Table );
      fxMesa->dirty &= ~TDFX_UPLOAD_FOG_TABLE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_CULL ) {
      fxMesa->Glide.grCullMode( fxMesa->CullMode );
      fxMesa->dirty &= ~TDFX_UPLOAD_CULL;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_CLIP ) {
      tdfxUploadClipping( fxMesa );
      fxMesa->dirty &= ~TDFX_UPLOAD_CLIP;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_COLOR_MASK ) {
      if ( fxMesa->Glide.grColorMaskExt
           && fxMesa->glCtx->Visual.redBits == 8) {
	 fxMesa->Glide.grColorMaskExt( fxMesa->Color.ColorMask[RCOMP],
                                       fxMesa->Color.ColorMask[GCOMP],
                                       fxMesa->Color.ColorMask[BCOMP],
                                       fxMesa->Color.ColorMask[ACOMP] );
      } else {
	 fxMesa->Glide.grColorMask( fxMesa->Color.ColorMask[RCOMP] ||
                                    fxMesa->Color.ColorMask[GCOMP] ||
                                    fxMesa->Color.ColorMask[BCOMP],
                                    /*fxMesa->Color.ColorMask[ACOMP]*/GL_FALSE/*[dBorca] no-no*/ );
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_COLOR_MASK;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_CONSTANT_COLOR ) {
      fxMesa->Glide.grConstantColorValue( fxMesa->Color.MonoColor );
      fxMesa->dirty &= ~TDFX_UPLOAD_CONSTANT_COLOR;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_LINE ) {
      if (fxMesa->glCtx->Line.SmoothFlag && fxMesa->glCtx->Line.Width == 1.0)
         fxMesa->Glide.grEnable(GR_AA_ORDERED);
      else
         fxMesa->Glide.grDisable(GR_AA_ORDERED);
      fxMesa->dirty &= ~TDFX_UPLOAD_LINE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_STENCIL ) {
      if (fxMesa->glCtx->Stencil.Enabled) {
         fxMesa->Glide.grEnable(GR_STENCIL_MODE_EXT);
         fxMesa->Glide.grStencilOp(fxMesa->Stencil.FailFunc,
                                   fxMesa->Stencil.ZFailFunc,
                                   fxMesa->Stencil.ZPassFunc);
         fxMesa->Glide.grStencilFunc(fxMesa->Stencil.Function,
                                     fxMesa->Stencil.RefValue,
                                     fxMesa->Stencil.ValueMask);
         fxMesa->Glide.grStencilMask(fxMesa->Stencil.WriteMask);
      }
      else {
         fxMesa->Glide.grDisable(GR_STENCIL_MODE_EXT);
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_STENCIL;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_VERTEX_LAYOUT ) {
      fxMesa->Glide.grGlideSetVertexLayout( fxMesa->layout[fxMesa->vertexFormat] );
      /* [dborca] enable fogcoord */
      fxMesa->Glide.grVertexLayout(GR_PARAM_FOG_EXT, TDFX_FOG_OFFSET,
	 fxMesa->Fog.Mode == GR_FOG_WITH_TABLE_ON_FOGCOORD_EXT);
      fxMesa->dirty &= ~TDFX_UPLOAD_VERTEX_LAYOUT;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_TEXTURE_ENV ) {
      uploadTextureEnv(fxMesa);
      fxMesa->dirty &= ~TDFX_UPLOAD_TEXTURE_ENV;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_TEXTURE_PARAMS ) {
      uploadTextureParams(fxMesa);
      fxMesa->dirty &= ~TDFX_UPLOAD_TEXTURE_PARAMS;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_TEXTURE_PALETTE ) {
      if (fxMesa->TexPalette.Data) {
         fxMesa->Glide.grTexDownloadTable(fxMesa->TexPalette.Type, fxMesa->TexPalette.Data);
      }
      fxMesa->dirty &= ~TDFX_UPLOAD_TEXTURE_PALETTE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_TEXTURE_SOURCE ) {
      uploadTextureSource(fxMesa);
      fxMesa->dirty &= ~TDFX_UPLOAD_TEXTURE_SOURCE;
   }

   if ( fxMesa->dirty & TDFX_UPLOAD_TEXTURE_IMAGES ) {
      uploadTextureImages(fxMesa);
      fxMesa->dirty &= ~TDFX_UPLOAD_TEXTURE_IMAGES;
   }

   fxMesa->dirty = 0;
}



void tdfxInitRenderFuncs( struct dd_function_table *functions )
{
   functions->Clear	= tdfxClear;
   functions->Finish	= tdfxFinish;
   functions->Flush	= tdfxFlush;
}