Merge branch 'mesa_7_6_branch'

Conflicts:
	src/mesa/drivers/dri/intel/intel_clear.c

docs/relnotes-7.6.html

@@ -50,6 +50,8 @@ This was written by Zack Rusin at Tungsten Graphics.
 <li>Rewritten radeon/r200/r300 driver using a buffer manager
 <li>radeon/r200/r300 GL_EXT_framebuffer_object support when used with
     kernel memory manager
+<li>radeon/r200/r300 support for GL_ARB_occlusion_query</li>
+<li>r300 driver supports OpenGL 1.5</li>
 <li>r300 driver support for GL_EXT_vertex_array_bgra, GL_EXT_texture_sRGB
 <li>i915/945 driver support for GL_ARB_point_sprite, GL_EXT_stencil_two_side
     and GL_ATI_separate_stencil extensions

src/glx/x11/glxhash.c

@@ -87,9 +87,13 @@
 
 #define HASH_ALLOC malloc
 #define HASH_FREE  free
-#define HASH_RANDOM_DECL
-#define HASH_RANDOM_INIT(seed)  srandom(seed)
-#define HASH_RANDOM             random()
+#define HASH_RANDOM_DECL	struct random_data rd; int32_t rv; char rs[256]
+#define HASH_RANDOM_INIT(seed)					\
+   do {								\
+      (void) memset(&rd, 0, sizeof(rd));			\
+      (void) initstate_r(seed, rs, sizeof(rs), &rd);		\
+   } while(0)
+#define HASH_RANDOM             ((void) random_r(&rd, &rv), rv)
 #define HASH_RANDOM_DESTROY
 
 typedef struct __glxHashBucket

src/mesa/drivers/common/meta.c

@@ -772,7 +772,6 @@ _mesa_meta_end(GLcontext *ctx)
 
       _mesa_MatrixMode(save->MatrixMode);
 
-      save->ClipPlanesEnabled = ctx->Transform.ClipPlanesEnabled;
       if (save->ClipPlanesEnabled) {
          GLuint i;
          for (i = 0; i < ctx->Const.MaxClipPlanes; i++) {
@@ -808,9 +807,6 @@ _mesa_meta_end(GLcontext *ctx)
    if (save->Lighting) {
       _mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE);
    }
-   if (save->Fog) {
-      _mesa_set_enable(ctx, GL_FOG, GL_TRUE);
-   }
 }
 
 

src/mesa/drivers/dri/intel/intel_clear.c

@@ -38,6 +38,7 @@
 #include "intel_fbo.h"
 #include "intel_pixel.h"
 #include "intel_regions.h"
+#include "intel_batchbuffer.h"
 
 #define FILE_DEBUG_FLAG DEBUG_BLIT
 
@@ -170,8 +171,9 @@ intelClear(GLcontext *ctx, GLbitfield mask)
 	 }
 	 DBG("\n");
       }
-      intelFlush(&intel->ctx);
-      _mesa_meta_Clear(&intel->ctx, tri_mask);
+
+      _mesa_meta_clear(&intel->ctx, tri_mask);
+      intel_batchbuffer_flush(intel->batch);
    }
 
    if (swrast_mask) {

src/mesa/drivers/dri/r300/compiler/r300_fragprog_emit.c

@@ -352,7 +352,7 @@ void r300BuildFragmentProgramHwCode(struct r300_fragment_program_compiler *compi
 	if (emit.current_node < 3) {
 		int shift = 3 - emit.current_node;
 		int i;
-		for(i = 0; i <= emit.current_node; ++i)
+		for(i = emit.current_node; i >= 0; --i)
 			code->code_addr[shift + i] = code->code_addr[i];
 		for(i = 0; i < shift; ++i)
 			code->code_addr[i] = 0;

src/mesa/state_tracker/st_cb_fbo.c

@@ -258,6 +258,7 @@ st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw)
    strb->Base.ClassID = 0x4242; /* just a unique value */
    strb->Base.NumSamples = samples;
    strb->format = format;
+   init_renderbuffer_bits(strb, format);
    strb->software = sw;
    
    switch (format) {

src/mesa/state_tracker/st_cb_texture.c

@@ -658,8 +658,10 @@ st_TexImage(GLcontext * ctx,
 					   format, type,
 					   pixels, unpack, "glTexImage");
    }
-   if (!pixels)
-      return;
+
+   /* Note: we can't check for pixels==NULL until after we've allocated
+    * memory for the texture.
+    */
 
    /* See if we can do texture compression with a blit/render.
     */
@@ -670,6 +672,9 @@ st_TexImage(GLcontext * ctx,
                                    stImage->pt->format,
                                    stImage->pt->target,
                                    PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
+      if (!pixels)
+         goto done;
+
       if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
                              format, type, pixels, unpack, texImage)) {
          goto done;
@@ -711,6 +716,9 @@ st_TexImage(GLcontext * ctx,
       return;
    }
 
+   if (!pixels)
+      goto done;
+
    DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
        width, height, depth, width * texelBytes, dstRowStride);
 
@@ -753,9 +761,9 @@ st_TexImage(GLcontext * ctx,
       }
    }
 
+done:
    _mesa_unmap_teximage_pbo(ctx, unpack);
 
-done:
    if (stImage->pt && texImage->Data) {
       st_texture_image_unmap(ctx->st, stImage);
       texImage->Data = NULL;
@@ -1092,7 +1100,7 @@ st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
 
    if (!texImage->Data) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
-      return;
+      goto done;
    }
 
    src = (const GLubyte *) pixels;
@@ -1123,9 +1131,9 @@ st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
       }
    }
 
+done:
    _mesa_unmap_teximage_pbo(ctx, packing);
 
-done:
    if (stImage->pt) {
       st_texture_image_unmap(ctx->st, stImage);
       texImage->Data = NULL;

src/mesa/state_tracker/st_framebuffer.c

@@ -66,7 +66,7 @@ st_create_framebuffer( const __GLcontextModes *visual,
       else {
          /* Only allocate front buffer right now if we're single buffered.
           * If double-buffered, allocate front buffer on demand later.
-          * See check_create_front_buffers().
+          * See check_create_front_buffers() and st_set_framebuffer_surface().
           */
          struct gl_renderbuffer *rb
             = st_new_renderbuffer_fb(colorFormat, samples, FALSE);
@@ -170,8 +170,20 @@ st_set_framebuffer_surface(struct st_framebuffer *stfb,
 
    strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer);
 
+   if (!strb) {
+      if (surfIndex == ST_SURFACE_FRONT_LEFT) {
+         /* Delayed creation when the window system supplies a fake front buffer */
+         struct st_renderbuffer *strb_back
+            = st_renderbuffer(stfb->Base.Attachment[ST_SURFACE_BACK_LEFT].Renderbuffer);
+         struct gl_renderbuffer *rb
+            = st_new_renderbuffer_fb(surf->format, strb_back->Base.NumSamples, FALSE);
+         _mesa_add_renderbuffer(&stfb->Base, BUFFER_FRONT_LEFT, rb);
+         strb = st_renderbuffer(rb);
+      } else {
          /* fail */
-   if (!strb) return;
+         return;
+      }
+   }
 
    /* replace the renderbuffer's surface/texture pointers */
    pipe_surface_reference( &strb->surface, surf );