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-rw-r--r--src/mesa/vbo/vbo_exec_array.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index 6858eb30b73..e5eeae44ece 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -404,7 +404,8 @@ vbo_bind_arrays(struct gl_context *ctx)
*/
static void
vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
- GLsizei count, GLuint numInstances, GLuint baseInstance)
+ GLsizei count, GLuint numInstances, GLuint baseInstance,
+ GLuint drawID)
{
struct vbo_context *vbo = vbo_context(ctx);
struct _mesa_prim prim[2];
@@ -420,6 +421,7 @@ vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start,
prim[0].mode = mode;
prim[0].num_instances = numInstances;
prim[0].base_instance = baseInstance;
+ prim[0].draw_id = drawID;
prim[0].is_indirect = 0;
prim[0].start = start;
prim[0].count = count;
@@ -572,7 +574,7 @@ vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
if (0)
check_draw_arrays_data(ctx, start, count);
- vbo_draw_arrays(ctx, mode, start, count, 1, 0);
+ vbo_draw_arrays(ctx, mode, start, count, 1, 0, 0);
if (0)
print_draw_arrays(ctx, mode, start, count);
@@ -600,7 +602,7 @@ vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,
if (0)
check_draw_arrays_data(ctx, start, count);
- vbo_draw_arrays(ctx, mode, start, count, numInstances, 0);
+ vbo_draw_arrays(ctx, mode, start, count, numInstances, 0, 0);
if (0)
print_draw_arrays(ctx, mode, start, count);
@@ -630,7 +632,7 @@ vbo_exec_DrawArraysInstancedBaseInstance(GLenum mode, GLint first,
if (0)
check_draw_arrays_data(ctx, first, count);
- vbo_draw_arrays(ctx, mode, first, count, numInstances, baseInstance);
+ vbo_draw_arrays(ctx, mode, first, count, numInstances, baseInstance, 0);
if (0)
print_draw_arrays(ctx, mode, first, count);
@@ -660,7 +662,14 @@ vbo_exec_MultiDrawArrays(GLenum mode, const GLint *first,
if (0)
check_draw_arrays_data(ctx, first[i], count[i]);
- vbo_draw_arrays(ctx, mode, first[i], count[i], 1, 0);
+ /* The GL_ARB_shader_draw_parameters spec adds the following after the
+ * pseudo-code describing glMultiDrawArrays:
+ *
+ * "The index of the draw (<i> in the above pseudo-code) may be
+ * read by a vertex shader as <gl_DrawIDARB>, as described in
+ * Section 11.1.3.9."
+ */
+ vbo_draw_arrays(ctx, mode, first[i], count[i], 1, 0, i);
if (0)
print_draw_arrays(ctx, mode, first[i], count[i]);
@@ -1262,7 +1271,7 @@ vbo_draw_transform_feedback(struct gl_context *ctx, GLenum mode,
!_mesa_all_varyings_in_vbos(ctx->Array.VAO))) {
GLsizei n =
ctx->Driver.GetTransformFeedbackVertexCount(ctx, obj, stream);
- vbo_draw_arrays(ctx, mode, 0, n, numInstances, 0);
+ vbo_draw_arrays(ctx, mode, 0, n, numInstances, 0, 0);
return;
}