From: Keith Whitwell <keith@tungstengraphics.com>
Date: Tue, 21 Nov 2006 10:43:16 +0000 (+0000)
Subject: Gary Wong's patches for CopyPixels Logiop (enable) and Blend
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=46c04525d2282fc7fb5632de8348fef379c71120;p=mesa.git

Gary Wong's patches for CopyPixels Logiop (enable) and Blend
(disallow).  Slightly cleaned to disallow on all blend states for code
consiseness and turn a table lookup into a function to match other
code in the driver.
---

diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c
index 0974f1f80ad..c8c5bf93c95 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.c
+++ b/src/mesa/drivers/dri/i965/intel_blit.c
@@ -221,6 +221,29 @@ void intelEmitFillBlit( struct intel_context *intel,
    ADVANCE_BATCH();
 }
 
+static GLuint translate_raster_op(GLenum logicop)
+{
+   switch(logicop) {
+   case GL_CLEAR: return 0x00;
+   case GL_AND: return 0x88;
+   case GL_AND_REVERSE: return 0x44;
+   case GL_COPY: return 0xCC;
+   case GL_AND_INVERTED: return 0x22;
+   case GL_NOOP: return 0xAA;
+   case GL_XOR: return 0x66;
+   case GL_OR: return 0xEE;
+   case GL_NOR: return 0x11;
+   case GL_EQUIV: return 0x99;
+   case GL_INVERT: return 0x55;
+   case GL_OR_REVERSE: return 0xDD;
+   case GL_COPY_INVERTED: return 0x33;
+   case GL_OR_INVERTED: return 0xBB;
+   case GL_NAND: return 0x77;
+   case GL_SET: return 0xFF;
+   default: return 0;
+   }
+}
+
 
 /* Copy BitBlt
  */
@@ -236,7 +259,8 @@ void intelEmitCopyBlit( struct intel_context *intel,
 			GLboolean dst_tiled,
 			GLshort src_x, GLshort src_y,
 			GLshort dst_x, GLshort dst_y,
-			GLshort w, GLshort h )
+			GLshort w, GLshort h,
+			GLenum logic_op )
 {
    GLuint CMD, BR13;
    int dst_y2 = dst_y + h;
@@ -244,12 +268,15 @@ void intelEmitCopyBlit( struct intel_context *intel,
    BATCH_LOCALS;
 
 
-   DBG("%s src:buf(%d)/%d %d,%d dst:buf(%d)/%d %d,%d sz:%dx%d\n",
+   DBG("%s src:buf(%d)/%d %d,%d dst:buf(%d)/%d %d,%d sz:%dx%d op:%d\n",
        __FUNCTION__,
        src_buffer, src_pitch, src_x, src_y,
        dst_buffer, dst_pitch, dst_x, dst_y,
-       w,h);
+       w,h,logic_op);
 
+   assert( logic_op - GL_CLEAR >= 0 );
+   assert( logic_op - GL_CLEAR < 0x10 );
+      
    src_pitch *= cpp;
    dst_pitch *= cpp;
 
@@ -257,11 +284,12 @@ void intelEmitCopyBlit( struct intel_context *intel,
    case 1: 
    case 2: 
    case 3: 
-      BR13 = (0xCC << 16) | (1<<24);
+      BR13 = (translate_raster_op(logic_op) << 16) | (1<<24);
       CMD = XY_SRC_COPY_BLT_CMD;
       break;
    case 4:
-      BR13 = (0xCC << 16) | (1<<24) | (1<<25);
+      BR13 = (translate_raster_op(logic_op) << 16) | (1<<24) |
+	  (1<<25);
       CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
 	     XY_SRC_COPY_BLT_WRITE_RGB);
       break;
diff --git a/src/mesa/drivers/dri/i965/intel_blit.h b/src/mesa/drivers/dri/i965/intel_blit.h
index b15fb1c2b7f..8b0cc65243c 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.h
+++ b/src/mesa/drivers/dri/i965/intel_blit.h
@@ -49,7 +49,8 @@ extern void intelEmitCopyBlit( struct intel_context *intel,
 			       GLboolean dst_tiled,
 			       GLshort srcx, GLshort srcy,
 			       GLshort dstx, GLshort dsty,
-			       GLshort w, GLshort h );
+			       GLshort w, GLshort h,
+			       GLenum logic_op );
 
 extern void intelEmitFillBlit( struct intel_context *intel,
 			       GLuint cpp,
diff --git a/src/mesa/drivers/dri/i965/intel_pixel_copy.c b/src/mesa/drivers/dri/i965/intel_pixel_copy.c
index d5d48994529..55b58a8f670 100644
--- a/src/mesa/drivers/dri/i965/intel_pixel_copy.c
+++ b/src/mesa/drivers/dri/i965/intel_pixel_copy.c
@@ -92,9 +92,9 @@ intel_check_blit_fragment_ops(GLcontext * ctx)
             !ctx->Color.ColorMask[1] ||
             !ctx->Color.ColorMask[2] ||
             !ctx->Color.ColorMask[3] ||	/* can do this! */
-            ctx->Color.ColorLogicOpEnabled || /* can do this! */
             ctx->Texture._EnabledUnits ||
-	    ctx->FragmentProgram._Enabled);
+	    ctx->FragmentProgram._Enabled ||
+	    ctx->Color.BlendEnabled);
 }
 
 
@@ -210,7 +210,9 @@ do_blit_copypixels(GLcontext * ctx,
 			   rect.x1 + delta_x, 
 			   rect.y1 + delta_y,       /* srcx, srcy */
                            rect.x1, rect.y1,    /* dstx, dsty */
-                           rect.x2 - rect.x1, rect.y2 - rect.y1);
+                           rect.x2 - rect.x1, rect.y2 - rect.y1,
+			   ctx->Color.ColorLogicOpEnabled ?
+			   ctx->Color.LogicOp : GL_COPY);
       }
 
       intel->need_flush = GL_TRUE;
diff --git a/src/mesa/drivers/dri/i965/intel_regions.c b/src/mesa/drivers/dri/i965/intel_regions.c
index 53f05612377..398b0a0a3b5 100644
--- a/src/mesa/drivers/dri/i965/intel_regions.c
+++ b/src/mesa/drivers/dri/i965/intel_regions.c
@@ -269,7 +269,8 @@ void intel_region_copy( struct intel_context *intel,
 		     dst->pitch, dst->buffer, dst_offset, dst->tiled,
 		     srcx, srcy,
 		     dstx, dsty,
-		     width, height);
+		     width, height,
+		     GL_COPY );
 }
 
 /* Fill a rectangular sub-region.  Need better logic about when to