gallium: implement bounds checking for constant buffers

Plumb the constant buffer sizes down into the tgsi interpreter where
we can do bounds checking.  Optional debug code warns upon out-of-bounds
reading.  Plus add a few other assertions in the TGSI interpreter.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c
index bc34d390da..dab3eb1ca8 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -85,7 +85,8 @@ static void
 vs_exec_run_linear( struct draw_vertex_shader *shader,
 		    const float (*input)[4],
 		    float (*output)[4],
-                   const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+                    const void *constants[PIPE_MAX_CONSTANT_BUFFERS],
+                    const unsigned const_size[PIPE_MAX_CONSTANT_BUFFERS],
 		    unsigned count,
 		    unsigned input_stride,
 		    unsigned output_stride )
@@ -95,9 +96,8 @@ vs_exec_run_linear( struct draw_vertex_shader *shader,
    unsigned int i, j;
    unsigned slot;
 
-   for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
-      machine->Consts[i] = constants[i];
-   }
+   tgsi_exec_set_constant_buffers(machine, PIPE_MAX_CONSTANT_BUFFERS,
+                                  constants, const_size);
 
    for (i = 0; i < count; i += MAX_TGSI_VERTICES) {
       unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i);