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authorPaul Berry <stereotype441@gmail.com>2014-01-09 19:21:41 -0800
committerJordan Justen <jordan.l.justen@intel.com>2015-05-02 00:50:00 -0700
commit8f1423b2c484de358bad6cee548f630d87d145da (patch)
treeabb284a213af6190caae5c75052ad590e0a0cc10 /src/mesa/main/compute.c
parent4d0f3d2319169aca112f9387ef7509290713dc75 (diff)
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main/cs: Implement front end code for glDispatchCompute().
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Diffstat (limited to 'src/mesa/main/compute.c')
-rw-r--r--src/mesa/main/compute.c20
1 files changed, 19 insertions, 1 deletions
diff --git a/src/mesa/main/compute.c b/src/mesa/main/compute.c
index 5756666..37a4ba7 100644
--- a/src/mesa/main/compute.c
+++ b/src/mesa/main/compute.c
@@ -31,9 +31,27 @@ _mesa_DispatchCompute(GLuint num_groups_x,
GLuint num_groups_z)
{
GET_CURRENT_CONTEXT(ctx);
+ int i;
+ struct gl_shader_program *prog;
+ const GLuint num_groups[3] = { num_groups_x, num_groups_y, num_groups_z };
if (ctx->Extensions.ARB_compute_shader) {
- assert(!"TODO");
+ for (i = 0; i < 3; i++) {
+ if (num_groups[i] > ctx->Const.MaxComputeWorkGroupCount[i]) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDispatchCompute(num_groups_%c)", 'x' + i);
+ return;
+ }
+ }
+ if (!_mesa_valid_to_render(ctx, "glDispatchCompute"))
+ return;
+ prog = ctx->Shader.CurrentProgram[MESA_SHADER_COMPUTE];
+ if (prog == NULL || prog->_LinkedShaders[MESA_SHADER_COMPUTE] == NULL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDispatchCompute(no active compute shader)");
+ return;
+ }
+ ctx->Driver.DispatchCompute(ctx, num_groups);
} else {
_mesa_error(ctx, GL_INVALID_OPERATION,
"unsupported function (glDispatchCompute) called");