r300: make DRI2 not crash on compiz start

diff --git a/src/mesa/drivers/dri/r300/r300_texstate.c b/src/mesa/drivers/dri/r300/r300_texstate.c
index e5afff0..25cd4d8 100644 (file)
--- a/src/mesa/drivers/dri/r300/r300_texstate.c
+++ b/src/mesa/drivers/dri/r300/r300_texstate.c
@@ -196,8 +196,10 @@ void r300SetDepthTexMode(struct gl_texture_object *tObj)
  */
 static void setup_hardware_state(r300ContextPtr rmesa, radeonTexObj *t)
 {
-       const struct gl_texture_image *firstImage =
-           t->base.Image[0][t->mt->firstLevel];
+       const struct gl_texture_image *firstImage;
+       int firstlevel = t->mt ? t->mt->firstLevel : 0;
+           
+       firstImage = t->base.Image[0][firstlevel];
 
        if (!t->image_override
            && VALID_FORMAT(firstImage->TexFormat->MesaFormat)) {
@@ -214,6 +216,14 @@ static void setup_hardware_state(r300ContextPtr rmesa, radeonTexObj *t)
                return;
        }
 
+       if (t->image_override)
+               return;
+
+       t->pp_txsize = (((firstImage->Width - 1) << R300_TX_WIDTHMASK_SHIFT)
+                       | ((firstImage->Height - 1) << R300_TX_HEIGHTMASK_SHIFT)
+                       | ((firstImage->DepthLog2) << R300_TX_DEPTHMASK_SHIFT)
+                       | ((t->mt->lastLevel - t->mt->firstLevel) << R300_TX_MAX_MIP_LEVEL_SHIFT));
+
        t->tile_bits = 0;
 
        if (t->base.Target == GL_TEXTURE_CUBE_MAP)
@@ -221,10 +231,6 @@ static void setup_hardware_state(r300ContextPtr rmesa, radeonTexObj *t)
        if (t->base.Target == GL_TEXTURE_3D)
                t->pp_txformat |= R300_TX_FORMAT_3D;
 
-       t->pp_txsize = (((firstImage->Width - 1) << R300_TX_WIDTHMASK_SHIFT)
-                       | ((firstImage->Height - 1) << R300_TX_HEIGHTMASK_SHIFT)
-                       | ((firstImage->DepthLog2) << R300_TX_DEPTHMASK_SHIFT)
-                       | ((t->mt->lastLevel - t->mt->firstLevel) << R300_TX_MAX_MIP_LEVEL_SHIFT));
 
        if (t->base.Target == GL_TEXTURE_RECTANGLE_NV) {
                unsigned int align = (64 / t->mt->bpp) - 1;
@@ -310,7 +316,10 @@ again:
                                      i);
                }
                t = radeon_tex_obj(ctx->Texture.Unit[i]._Current);
-               bos[num_bo].bo = t->mt->bo;
+               if (t->image_override && t->bo)
+                       bos[num_bo].bo = t->bo;
+               else if (t->mt->bo)
+                       bos[num_bo].bo = t->mt->bo;
                bos[num_bo].read_domains = RADEON_GEM_DOMAIN_GTT | RADEON_GEM_DOMAIN_VRAM;
                bos[num_bo].write_domain = 0;
                bos[num_bo].new_accounted = 0;
@@ -440,6 +449,7 @@ void r300SetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
        rImage->bo = rb->bo;
        
        t->bo = rb->bo;
+       radeon_bo_ref(t->bo);
        t->tile_bits = 0;
        t->image_override = GL_TRUE;
        t->override_offset = 0;