Merge branch 'master' into asm-shader-rework-2

Conflicts:
	src/mesa/shader/lex.yy.c
	src/mesa/shader/program_parse.tab.c
	src/mesa/shader/program_parse.tab.h

8 files changed, 48 insertions, 64 deletions

diff --git a/src/mesa/swrast/s_bitmap.c b/src/mesa/swrast/s_bitmap.c
index 5e7822cf32..3dbdf2a61a 100644
--- a/src/mesa/swrast/s_bitmap.c
+++ b/src/mesa/swrast/s_bitmap.c
@@ -56,7 +56,7 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
 
    ASSERT(ctx->RenderMode == GL_RENDER);
 
-   bitmap = _mesa_map_bitmap_pbo(ctx, unpack, bitmap);
+   bitmap = (const GLubyte *) _mesa_map_pbo_source(ctx, unpack, bitmap);
    if (!bitmap)
       return;
 
@@ -133,7 +133,7 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
 
    swrast_render_finish(ctx);
 
-   _mesa_unmap_bitmap_pbo(ctx, unpack);
+   _mesa_unmap_pbo_source(ctx, unpack);
 }
 
 
diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index e7c2ace32c..abf0008565 100644
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -220,6 +220,9 @@ _swrast_update_deferred_texture(GLcontext *ctx)
          /* Z comes from fragment program/shader */
          swrast->_DeferredTexture = GL_FALSE;
       }
+      else if (fprog && fprog->UsesKill) {
+         swrast->_DeferredTexture = GL_FALSE;
+      }
       else if (ctx->Query.CurrentOcclusionObject) {
          /* occlusion query depends on shader discard/kill results */
          swrast->_DeferredTexture = GL_FALSE;
diff --git a/src/mesa/swrast/s_depth.c b/src/mesa/swrast/s_depth.c
index 26e23f02d5..1a428fb1a2 100644
--- a/src/mesa/swrast/s_depth.c
+++ b/src/mesa/swrast/s_depth.c
@@ -497,6 +497,33 @@ depth_test_span32( GLcontext *ctx, GLuint n,
    return passed;
 }
 
+/* Apply ARB_depth_clamp to span of fragments. */
+void
+_swrast_depth_clamp_span( GLcontext *ctx, SWspan *span )
+{
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
+   struct gl_renderbuffer *rb = fb->_DepthBuffer;
+   const GLuint count = span->end;
+   GLuint *zValues = span->array->z;
+   GLuint near, far;
+   int i;
+
+   if (rb->DataType == GL_UNSIGNED_SHORT) {
+      near = FLOAT_TO_UINT(ctx->Viewport.Near);
+      far = FLOAT_TO_UINT(ctx->Viewport.Far);
+   } else {
+      assert(rb->DataType == GL_UNSIGNED_INT);
+      CLAMPED_FLOAT_TO_USHORT(near, ctx->Viewport.Near);
+      CLAMPED_FLOAT_TO_USHORT(far, ctx->Viewport.Far);
+   }
+   for (i = 0; i < count; i++) {
+      if (zValues[i] < near)
+	 zValues[i] = near;
+      if (zValues[i] > far)
+	 zValues[i] = far;
+   }
+}
+
 
 
 /*
diff --git a/src/mesa/swrast/s_depth.h b/src/mesa/swrast/s_depth.h
index 3688625683..7eae366742 100644
--- a/src/mesa/swrast/s_depth.h
+++ b/src/mesa/swrast/s_depth.h
@@ -33,6 +33,8 @@
 extern GLuint
 _swrast_depth_test_span( GLcontext *ctx, SWspan *span);
 
+extern void
+_swrast_depth_clamp_span( GLcontext *ctx, SWspan *span );
 
 extern GLboolean
 _swrast_depth_bounds_test( GLcontext *ctx, SWspan *span );
diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index a9ef8e685f..6970b2e9cb 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -831,11 +831,13 @@ _swrast_DrawPixels( GLcontext *ctx,
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    GLboolean save_vp_override = ctx->VertexProgram._Overriden;
 
-   /* We are creating fragments directly, without going through vertex programs.
+   /* We are creating fragments directly, without going through vertex
+    * programs.
     *
-    * This override flag tells the fragment processing code that its input comes
-    * from a non-standard source, and it may therefore not rely on optimizations
-    * that assume e.g. constant color if there is no color vertex array.
+    * This override flag tells the fragment processing code that its input
+    * comes from a non-standard source, and it may therefore not rely on
+    * optimizations that assume e.g. constant color if there is no color
+    * vertex array.
     */
    _mesa_set_vp_override(ctx, GL_TRUE);
 
@@ -847,7 +849,7 @@ _swrast_DrawPixels( GLcontext *ctx,
    if (swrast->NewState)
       _swrast_validate_derived( ctx );
 
-    pixels = _mesa_map_drawpix_pbo(ctx, unpack, pixels);
+    pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
     if (!pixels) {
        swrast_render_finish(ctx);
        _mesa_set_vp_override(ctx, save_vp_override);
@@ -892,58 +894,5 @@ _swrast_DrawPixels( GLcontext *ctx,
    swrast_render_finish(ctx);
    _mesa_set_vp_override(ctx, save_vp_override);
 
-   _mesa_unmap_drawpix_pbo(ctx, unpack);
+   _mesa_unmap_pbo_source(ctx, unpack);
 }
-
-
-
-#if 0  /* experimental */
-/*
- * Execute glDrawDepthPixelsMESA().
- */
-void
-_swrast_DrawDepthPixelsMESA( GLcontext *ctx,
-                             GLint x, GLint y,
-                             GLsizei width, GLsizei height,
-                             GLenum colorFormat, GLenum colorType,
-                             const GLvoid *colors,
-                             GLenum depthType, const GLvoid *depths,
-                             const struct gl_pixelstore_attrib *unpack )
-{
-   SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
-   if (swrast->NewState)
-      _swrast_validate_derived( ctx );
-
-   swrast_render_start(ctx);
-
-   switch (colorFormat) {
-   case GL_COLOR_INDEX:
-      if (ctx->Visual.rgbMode)
-	 draw_rgba_pixels(ctx, x,y, width, height, colorFormat, colorType,
-                          unpack, colors);
-      else
-	 draw_index_pixels(ctx, x, y, width, height, colorType,
-                           unpack, colors);
-      break;
-   case GL_RED:
-   case GL_GREEN:
-   case GL_BLUE:
-   case GL_ALPHA:
-   case GL_LUMINANCE:
-   case GL_LUMINANCE_ALPHA:
-   case GL_RGB:
-   case GL_BGR:
-   case GL_RGBA:
-   case GL_BGRA:
-   case GL_ABGR_EXT:
-      draw_rgba_pixels(ctx, x, y, width, height, colorFormat, colorType,
-                       unpack, colors);
-      break;
-   default:
-      _mesa_problem(ctx, "unexpected format in glDrawDepthPixelsMESA");
-   }
-
-   swrast_render_finish(ctx);
-}
-#endif
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c
index e901fc6b5d..48b9408d24 100644
--- a/src/mesa/swrast/s_readpix.c
+++ b/src/mesa/swrast/s_readpix.c
@@ -574,7 +574,7 @@ _swrast_ReadPixels( GLcontext *ctx,
       return;
    }
 
-   pixels = _mesa_map_readpix_pbo(ctx, &clippedPacking, pixels);
+   pixels = _mesa_map_pbo_dest(ctx, &clippedPacking, pixels);
    if (!pixels)
       return;
   
@@ -616,5 +616,5 @@ _swrast_ReadPixels( GLcontext *ctx,
 
    swrast_render_finish(ctx);
 
-   _mesa_unmap_readpix_pbo(ctx, &clippedPacking);
+   _mesa_unmap_pbo_dest(ctx, &clippedPacking);
 }
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 0e2793b474..a45eac438e 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -880,6 +880,9 @@ _swrast_write_index_span( GLcontext *ctx, SWspan *span)
       stipple_polygon_span(ctx, span);
    }
 
+   if (ctx->Transform.DepthClamp)
+      _swrast_depth_clamp_span(ctx, span);
+
    /* Stencil and Z testing */
    if (ctx->Stencil._Enabled || ctx->Depth.Test) {
       if (!(span->arrayMask & SPAN_Z))
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index 1d2fed7169..1ab0e19f92 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -61,7 +61,7 @@ _swrast_culltriangle( GLcontext *ctx,
    GLfloat fy = v2->attrib[FRAG_ATTRIB_WPOS][1] - v0->attrib[FRAG_ATTRIB_WPOS][1];
    GLfloat c = ex*fy-ey*fx;
 
-   if (c * swrast->_BackfaceSign * swrast->_BackfaceCullSign < 0.0F)
+   if (c * swrast->_BackfaceSign * swrast->_BackfaceCullSign <= 0.0F)
       return GL_FALSE;
 
    return GL_TRUE;