The old MESA_PBUFFER_ALLOC() function allocated memory on 512-byte boundaries.

Restore that behavior with new _mesa_alloc_texmemory() function.
Should fix via_sse_memcpy() problem in found with flightgear.

1 files changed, 27 insertions, 2 deletions

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 62153dca418..b5d2d266b00 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -51,6 +51,29 @@
 #include "mtypes.h"
 
 
+/**
+ * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
+ * elsewhere.
+ */
+void *
+_mesa_alloc_texmemory(GLsizei bytes)
+{
+   return _mesa_align_malloc(bytes, 512);
+}
+
+
+/**
+ * Free texture memory allocated with _mesa_alloc_texmemory()
+ */
+void
+_mesa_free_texmemory(void *m)
+{
+   _mesa_align_free(m);
+}
+
+
+
+
 #if 0
 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
 {
@@ -572,17 +595,19 @@ _mesa_new_texture_image( GLcontext *ctx )
 
 /**
  * Free texture image data.
+ * This function is a fallback called via ctx->Driver.FreeTexImageData().
  *
  * \param teximage texture image.
  *
  * Free the texture image data if it's not marked as client data.
  */
 void
-_mesa_free_texture_image_data( GLcontext *ctx, struct gl_texture_image *texImage )
+_mesa_free_texture_image_data(GLcontext *ctx,
+                              struct gl_texture_image *texImage)
 {
    if (texImage->Data && !texImage->IsClientData) {
       /* free the old texture data */
-      _mesa_free(texImage->Data);
+      _mesa_free_texmemory(texImage->Data);
    }
 
    texImage->Data = NULL;