st/vega: Move vertex transformation to shader.

It was done in path-to-polygon conversion.  That meant that the
results were invalidated when the transformation was modified, and CPU
had to recreate the vertex buffer with new vertices.  It could be a
performance hit for apps that animate.

1 files changed, 1 insertions, 5 deletions

diff --git a/src/gallium/state_trackers/vega/image.c b/src/gallium/state_trackers/vega/image.c
index 164af30ef3b..318ea94bdfb 100644
--- a/src/gallium/state_trackers/vega/image.c
+++ b/src/gallium/state_trackers/vega/image.c
@@ -546,11 +546,7 @@ void image_draw(struct vg_image *img, struct matrix *matrix)
    x4 = 0;
    y4 = img->height;
 
-   matrix_map_point(matrix, x1, y1, &x1, &y1);
-   matrix_map_point(matrix, x2, y2, &x2, &y2);
-   matrix_map_point(matrix, x3, y3, &x3, &y3);
-   matrix_map_point(matrix, x4, y4, &x4, &y4);
-
+   shader_set_surface_matrix(ctx->shader, matrix);
    shader_set_drawing_image(ctx->shader, VG_TRUE);
    shader_set_paint(ctx->shader, ctx->state.vg.fill_paint);
    shader_set_paint_matrix(ctx->shader, &paint_matrix);