llvmpipe: Store the original triangle coordinates in the debug build.

For debugging purposes only.

2 files changed, 13 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h
index d91c45eb2be..dc5fc5fc7d6 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -98,6 +98,10 @@ struct lp_rast_shader_inputs {
  * Objects of this type are put into the setup_context::data buffer.
  */
 struct lp_rast_triangle {
+#ifdef DEBUG
+   float v[3][2];
+#endif
+
    /* one-pixel sized trivial accept offsets for each plane */
    int ei1;                   
    int ei2;
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index a8bf540803b..e75412ac9aa 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -297,6 +297,15 @@ do_triangle_ccw(struct setup_context *setup,
 
    tri = alloc_triangle(scene, setup->fs.nr_inputs, &tri_bytes);
 
+#ifdef DEBUG
+   tri->v[0][0] = v1[0][0];
+   tri->v[1][0] = v2[0][0];
+   tri->v[2][0] = v3[0][0];
+   tri->v[0][1] = v1[0][1];
+   tri->v[1][1] = v2[0][1];
+   tri->v[2][1] = v3[0][1];
+#endif
+
    tri->dx12 = x1 - x2;
    tri->dx23 = x2 - x3;
    tri->dx31 = x3 - x1;