Merge branch 'mesa_7_5_branch'

Conflicts:

	src/mesa/vbo/vbo_exec_draw.c

10 files changed, 48 insertions, 18 deletions

diff --git a/src/gallium/auxiliary/util/u_upload_mgr.c b/src/gallium/auxiliary/util/u_upload_mgr.c
index 2eb98068c86..c90425f3e54 100644
--- a/src/gallium/auxiliary/util/u_upload_mgr.c
+++ b/src/gallium/auxiliary/util/u_upload_mgr.c
@@ -83,7 +83,9 @@ my_buffer_write(struct pipe_screen *screen,
    assert(dirty_size >= size);
    assert(size);
 
-   map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_WRITE);
+   map = pipe_buffer_map_range(screen, buf, offset, size, 
+                               PIPE_BUFFER_USAGE_CPU_WRITE |
+                               PIPE_BUFFER_USAGE_FLUSH_EXPLICIT);
    if (map == NULL) 
       return PIPE_ERROR_OUT_OF_MEMORY;
 
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 96030e788db..b7857c5be8c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -210,6 +210,7 @@ enum pipe_transfer_usage {
 #define PIPE_BUFFER_USAGE_CONSTANT  (1 << 7)
 #define PIPE_BUFFER_USAGE_DISCARD   (1 << 8)
 #define PIPE_BUFFER_USAGE_DONTBLOCK (1 << 9)
+#define PIPE_BUFFER_USAGE_FLUSH_EXPLICIT (1 << 10) /**< See pipe_screen::buffer_flush_mapped_range */
 /** Pipe driver custom usage flags should be greater or equal to this value */
 #define PIPE_BUFFER_USAGE_CUSTOM    (1 << 16)
 
diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h
index 1232c879682..cf176c92099 100644
--- a/src/gallium/include/pipe/p_inlines.h
+++ b/src/gallium/include/pipe/p_inlines.h
@@ -117,7 +117,9 @@ pipe_buffer_write(struct pipe_screen *screen,
    assert(offset + size <= buf->size);
    assert(size);
 
-   map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_WRITE);
+   map = pipe_buffer_map_range(screen, buf, offset, size, 
+                               PIPE_BUFFER_USAGE_CPU_WRITE | 
+                               PIPE_BUFFER_USAGE_FLUSH_EXPLICIT);
    assert(map);
    if(map) {
       memcpy(map + offset, data, size);
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index b449522fac3..6cbdd759434 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -221,23 +221,31 @@ struct pipe_screen {
    /**
     * Notify a range that was actually written into.
     * 
+    * Can only be used if the buffer was mapped with the 
+    * PIPE_BUFFER_USAGE_CPU_WRITE and PIPE_BUFFER_USAGE_FLUSH_EXPLICIT flags 
+    * set.
+    * 
     * The range is relative to the buffer start, regardless of the range 
     * specified to buffer_map_range. This is different from the 
     * ARB_map_buffer_range semantics because we don't forbid multiple mappings 
     * of the same buffer (yet).
     * 
-    * If the buffer was mapped for writing and no buffer_flush_mapped_range 
-    * call was done until the buffer_unmap is called then the pipe driver will
-    * assumed that the whole buffer was written. This is for backward 
-    * compatibility purposes and may affect performance -- the state tracker 
-    * should always specify exactly what got written while the buffer was 
-    * mapped.  
     */
    void (*buffer_flush_mapped_range)( struct pipe_screen *screen,
                                       struct pipe_buffer *buf,
                                       unsigned offset,
                                       unsigned length);
 
+   /**
+    * Unmap buffer.
+    * 
+    * If the buffer was mapped with PIPE_BUFFER_USAGE_CPU_WRITE flag but not
+    * PIPE_BUFFER_USAGE_FLUSH_EXPLICIT then the pipe driver will
+    * assume that the whole buffer was written. This is mostly for backward 
+    * compatibility purposes and may affect performance -- the state tracker 
+    * should always specify exactly what got written while the buffer was 
+    * mapped.
+    */
    void (*buffer_unmap)( struct pipe_screen *screen,
                          struct pipe_buffer *buf );
 
diff --git a/src/glx/x11/drisw_glx.c b/src/glx/x11/drisw_glx.c
index b843ce484fb..1c229dde900 100644
--- a/src/glx/x11/drisw_glx.c
+++ b/src/glx/x11/drisw_glx.c
@@ -401,6 +401,8 @@ driCreateScreen(__GLXscreenConfigs * psc, int screen,
    psc->configs = driConvertConfigs(psc->core, psc->configs, driver_configs);
    psc->visuals = driConvertConfigs(psc->core, psc->visuals, driver_configs);
 
+   free(driver_configs);
+
    psp->destroyScreen = driDestroyScreen;
    psp->createContext = driCreateContext;
    psp->createDrawable = driCreateDrawable;
diff --git a/src/glx/x11/glxcmds.c b/src/glx/x11/glxcmds.c
index 77471b8599c..820d8b98685 100644
--- a/src/glx/x11/glxcmds.c
+++ b/src/glx/x11/glxcmds.c
@@ -164,7 +164,7 @@ GetGLXScreenConfigs(Display *dpy, int scrn)
 {
     __GLXdisplayPrivate * const priv = __glXInitialize(dpy);
 
-    return (priv->screenConfigs != NULL) ? &priv->screenConfigs[scrn] : NULL;
+    return (priv && priv->screenConfigs != NULL) ? &priv->screenConfigs[scrn] : NULL;
 }
 
 
diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 4d9ff01c776..8c1fd5ce025 100644
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -236,6 +236,9 @@ st_bufferobj_map_range(GLcontext *ctx, GLenum target,
    if (access & GL_MAP_READ_BIT)
       flags |= PIPE_BUFFER_USAGE_CPU_READ;
 
+   if (access & GL_MAP_FLUSH_EXPLICIT_BIT)
+      flags |= PIPE_BUFFER_USAGE_FLUSH_EXPLICIT;
+   
    /* ... other flags ...
     */
 
diff --git a/src/mesa/vbo/vbo_exec_draw.c b/src/mesa/vbo/vbo_exec_draw.c
index c939b7b6335..5442a409ad4 100644
--- a/src/mesa/vbo/vbo_exec_draw.c
+++ b/src/mesa/vbo/vbo_exec_draw.c
@@ -282,9 +282,14 @@ void
 vbo_exec_vtx_map( struct vbo_exec_context *exec )
 {
    GLcontext *ctx = exec->ctx;
-   GLenum target = GL_ARRAY_BUFFER_ARB;
-   GLenum access = GL_READ_WRITE_ARB;
-   GLenum usage = GL_STREAM_DRAW_ARB;
+   const GLenum target = GL_ARRAY_BUFFER_ARB;
+   const GLenum access = GL_READ_WRITE_ARB; /* for MapBuffer */
+   const GLenum accessRange = GL_MAP_WRITE_BIT |  /* for MapBufferRange */
+                              GL_MAP_INVALIDATE_RANGE_BIT |
+                              GL_MAP_UNSYNCHRONIZED_BIT |
+                              GL_MAP_FLUSH_EXPLICIT_BIT |
+                              MESA_MAP_NOWAIT_BIT;
+   const GLenum usage = GL_STREAM_DRAW_ARB;
    
    if (exec->vtx.bufferobj->Name == 0)
       return;
@@ -303,10 +308,7 @@ vbo_exec_vtx_map( struct vbo_exec_context *exec )
                                                exec->vtx.buffer_used,
                                                (VBO_VERT_BUFFER_SIZE - 
                                                 exec->vtx.buffer_used),
-                                               (GL_MAP_WRITE_BIT |
-                                                GL_MAP_INVALIDATE_RANGE_BIT | 
-                                                GL_MAP_UNSYNCHRONIZED_BIT | 
-                                                MESA_MAP_NOWAIT_BIT),
+                                               accessRange,
                                                exec->vtx.bufferobj);
       exec->vtx.buffer_ptr = exec->vtx.buffer_map;
    }
@@ -318,8 +320,16 @@ vbo_exec_vtx_map( struct vbo_exec_context *exec )
                              VBO_VERT_BUFFER_SIZE, 
                              NULL, usage, exec->vtx.bufferobj);
 
-      exec->vtx.buffer_map = (GLfloat *)
-         ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);
+
+      if (ctx->Driver.MapBufferRange)
+         exec->vtx.buffer_map = 
+            (GLfloat *)ctx->Driver.MapBufferRange(ctx, target,
+                                                  0, VBO_VERT_BUFFER_SIZE,
+                                                  accessRange,
+                                                  exec->vtx.bufferobj);
+      else
+         exec->vtx.buffer_map =
+            (GLfloat *)ctx->Driver.MapBuffer(ctx, target, access, exec->vtx.bufferobj);
       exec->vtx.buffer_ptr = exec->vtx.buffer_map;
    }
 
diff --git a/src/mesa/x86/sse_xform2.S b/src/mesa/x86/sse_xform2.S
index 91b82e72971..b490d4c169f 100644
--- a/src/mesa/x86/sse_xform2.S
+++ b/src/mesa/x86/sse_xform2.S
@@ -186,6 +186,7 @@ GLNAME(_mesa_sse_transform_points2_3d_no_rot):
     MOV_L( REGOFF(V4F_START, EDI), EDI ) 	/* ptr to first dest vertex */
     ADD_L( EDI, ECX ) 				/* count += dest ptr */
 
+    PXOR( XMM0, XMM0 )
 
 ALIGNTEXT32
     MOVSS    ( M(0), XMM1 )			/* - | - |  -  | m0  */
diff --git a/src/mesa/x86/sse_xform3.S b/src/mesa/x86/sse_xform3.S
index 1fc79ef21bd..8a79eeda18d 100644
--- a/src/mesa/x86/sse_xform3.S
+++ b/src/mesa/x86/sse_xform3.S
@@ -198,6 +198,7 @@ GLNAME(_mesa_sse_transform_points3_3d_no_rot):
     MOV_L( REGOFF(V4F_START, EDI), EDI ) 	/* ptr to first dest vertex */
     ADD_L( EDI, ECX ) 				/* count += dest ptr */
 
+    PXOR( XMM0, XMM0 )
 
 ALIGNTEXT32
     MOVSS    ( M(0), XMM1 )			/* - | - |  -  | m0  */