Import of XFree86 3.9.18X_3_9_18

1 files changed, 193 insertions, 0 deletions

diff --git a/xc/lib/GL/mesa/src/drv/i810/i810clear.c b/xc/lib/GL/mesa/src/drv/i810/i810clear.c
new file mode 100644
index 000000000..5ba264059
--- /dev/null
+++ b/xc/lib/GL/mesa/src/drv/i810/i810clear.c
@@ -0,0 +1,193 @@
+
+
+#include "types.h"
+#include "vbrender.h"
+#include "i810log.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "mm.h"
+#include "i810lib.h"
+#include "i810dd.h"
+#include "i810clear.h"
+#include "i810state.h"
+#include "i810tris.h"
+
+
+
+/* Clear the depthbuffer.  Always uses the auxillary cliprects and
+ * origin from 'dPriv'.
+ */
+static void i810_clear_depthbuffer( GLcontext *ctx, 
+				    GLboolean all,
+				    GLint cx, GLint cy, 
+				    GLint cwidth, GLint cheight ) 
+{
+   i810ContextPtr imesa = I810_CONTEXT( ctx );
+   GLuint zval = (GLuint) (ctx->Depth.Clear * DEPTH_SCALE);
+   i810ScreenPrivate *i810Screen = imesa->i810Screen;
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+
+/*     int _nc = dPriv->numAuxClipRects; */
+/*     XF86DRIClipRectPtr box = dPriv->pAuxClipRects; */
+
+   int _nc = imesa->numClipRects;
+   XF86DRIClipRectPtr box = imesa->pClipRects;
+
+   cy = dPriv->h-cy-cheight;
+   cx += dPriv->auxX;
+   cy += dPriv->auxY;
+         
+   while (_nc--) {	 
+      GLint x = box[_nc].x1;
+      GLint y = box[_nc].y1;
+      GLint width = box[_nc].x2 - x;
+      GLint height = box[_nc].y2 - y;
+
+      if (!all) {
+	 if (x < cx) width -= cx - x, x = cx; 
+	 if (y < cy) height -= cy - y, y = cy;
+	 if (x + width > cx + cwidth) width = cx + cwidth - x;
+	 if (y + height > cy + cheight) height = cy + cheight - y;
+	 if (width <= 0) continue;
+	 if (height <= 0) continue;
+      }
+
+      if (I810_DEBUG&DEBUG_VERBOSE_2D)
+	 fprintf(stderr, "clear depth rect %d,%d %dx%d\n", 
+		 (int) x, (int) y, (int) width, (int) height);
+
+      {
+	 int start = (i810Screen->depthOffset + 
+		      y * i810Screen->auxPitch + 
+		      x * 2);
+	    
+	 BEGIN_BATCH(imesa, 6);
+   
+	 OUT_BATCH( BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3 );
+	 OUT_BATCH( BR13_SOLID_PATTERN | 
+		    (0xF0 << 16) |
+		    i810Screen->auxPitch );
+	 OUT_BATCH( (height << 16) | (width * 2));
+	 OUT_BATCH( start );
+	 OUT_BATCH( zval );
+	 OUT_BATCH( 0 );
+
+	 ADVANCE_BATCH();   
+      }
+   }
+}
+
+
+/* Clear the current drawbuffer.  Checks 'imesa' to determine which set of
+ * cliprects and origin to use.
+ */
+static void i810_clear_colorbuffer( GLcontext *ctx, 
+				    GLboolean all,
+				    GLint cx, GLint cy, 
+				    GLint cwidth, GLint cheight ) 
+{
+   i810ContextPtr imesa = I810_CONTEXT( ctx );
+   GLushort c = imesa->ClearColor;
+   i810ScreenPrivate *i810Screen = imesa->i810Screen;
+   __DRIdrawablePrivate *dPriv = imesa->driDrawable;
+
+   int _nc = imesa->numClipRects;
+   XF86DRIClipRectPtr box = imesa->pClipRects;
+
+   cy = dPriv->h-cy-cheight;
+   cx += imesa->drawX;
+   cy += imesa->drawY;
+         
+   while (_nc--) {	 
+      GLint x = box[_nc].x1;
+      GLint y = box[_nc].y1;
+      GLint width = box[_nc].x2 - x;
+      GLint height = box[_nc].y2 - y;
+
+      if (!all) {
+	 if (x < cx) width -= cx - x, x = cx; 
+	 if (y < cy) height -= cy - y, y = cy;
+	 if (x + width > cx + cwidth) width = cx + cwidth - x;
+	 if (y + height > cy + cheight) height = cy + cheight - y;
+	 if (width <= 0) continue;
+	 if (height <= 0) continue;
+      }
+
+      if (I810_DEBUG&DEBUG_VERBOSE_2D)
+	 fprintf(stderr, "clear color rect %d,%d %dx%d\n", 
+		 (int) x, (int) y, (int) width, (int) height);
+
+
+      {
+	 int start = (imesa->drawOffset +  
+		      y * i810Screen->auxPitch + 
+		      x * i810Screen->cpp);
+	    
+	 BEGIN_BATCH( imesa, 6 );
+	    
+	 OUT_BATCH( BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3 );
+	 OUT_BATCH( BR13_SOLID_PATTERN | 
+		    (0xF0 << 16) |
+		    i810Screen->auxPitch );
+	 OUT_BATCH( (height << 16) | (width * i810Screen->cpp));
+	 OUT_BATCH( start );
+	 OUT_BATCH( c );
+	 OUT_BATCH( 0 );
+
+	 ADVANCE_BATCH();
+      }
+   }
+}
+
+
+
+
+/*
+ * i810Clear
+ *
+ * Clear the color and/or depth buffers.  If 'all' is GL_TRUE, clear
+ * whole buffer, otherwise clear the region defined by the remaining
+ * parameters.  
+ */
+GLbitfield i810Clear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+		      GLint cx, GLint cy, GLint cwidth, GLint cheight ) 
+{
+   i810ContextPtr imesa = I810_CONTEXT( ctx );
+
+   if (I810_DEBUG&DEBUG_VERBOSE_API)
+      fprintf(stderr, "i810Clear( %d, %d, %d, %d, %d )\n",
+	      (int)mask, (int)cx, (int)cy, (int)cwidth, (int)cheight );
+	
+   LOCK_HARDWARE(imesa);
+
+   {
+      BEGIN_BATCH( imesa, 2 );   
+      OUT_BATCH( INST_PARSER_CLIENT | INST_OP_FLUSH );
+      OUT_BATCH( 0 );
+      ADVANCE_BATCH();      
+   }
+
+   if (mask & GL_COLOR_BUFFER_BIT) {
+      i810_clear_colorbuffer( ctx, all, cx, cy, cwidth, cheight );
+      mask &= ~GL_COLOR_BUFFER_BIT;
+   }
+
+   if ( (mask & GL_DEPTH_BUFFER_BIT) && ctx->Depth.Mask ) {
+      i810_clear_depthbuffer( ctx, all, cx, cy, cwidth, cheight );
+      mask &= ~GL_DEPTH_BUFFER_BIT;
+   }      
+
+   {
+      BEGIN_BATCH( imesa, 2 );   
+      OUT_BATCH( INST_PARSER_CLIENT | INST_OP_FLUSH );
+      OUT_BATCH( 0 );
+      ADVANCE_BATCH();      
+   }
+
+   UNLOCK_HARDWARE( imesa );
+   return mask;
+}
+