X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fopengl%2Fcommands_backend.cpp;h=76469ab395be70ef4da6c8273eacf9604af91159;hb=cebf1330ef6773b7b4496dc279ec02a7ca4351bb;hp=62d952e091a557c56f8a9d3856fbba65d3277ee2;hpb=99ca354f18119f82f1adeca100cd665a8f640317;p=libs%2Fgl.git

diff --git a/source/backends/opengl/commands_backend.cpp b/source/backends/opengl/commands_backend.cpp
index 62d952e0..76469ab3 100644
--- a/source/backends/opengl/commands_backend.cpp
+++ b/source/backends/opengl/commands_backend.cpp
@@ -1,4 +1,5 @@
 #include <algorithm>
+#include <msp/gl/extensions/arb_compute_shader.h>
 #include <msp/gl/extensions/arb_direct_state_access.h>
 #include <msp/gl/extensions/arb_draw_instanced.h>
 #include <msp/gl/extensions/arb_occlusion_query.h>
@@ -36,6 +37,9 @@ void OpenGLCommands::clear(const ClearValue *values)
 	if(!target)
 		throw invalid_operation("OpenGLCommands::clear");
 
+	if(!values)
+		return;
+
 	static Require _req(MSP_clear_buffer);
 
 	pipeline_state->apply();
@@ -75,6 +79,17 @@ void OpenGLCommands::draw_instanced(const Batch &batch, unsigned count)
 	glDrawElementsInstanced(batch.gl_prim_type, batch.size(), batch.gl_index_type, data_ptr, count);
 }
 
+void OpenGLCommands::dispatch(unsigned count_x, unsigned count_y, unsigned count_z)
+{
+	if(!pipeline_state)
+		throw invalid_operation("OpenGLCommands::dispatch_compute");
+
+	static Require req(ARB_compute_shader);
+
+	pipeline_state->apply();
+	glDispatchCompute(count_x, count_y, count_z);
+}
+
 void OpenGLCommands::resolve_multisample(Framebuffer &target)
 {
 	const Framebuffer *source = (pipeline_state ? pipeline_state->get_framebuffer() : 0);
@@ -88,7 +103,10 @@ void OpenGLCommands::resolve_multisample(Framebuffer &target)
 	unsigned buffers = get_gl_buffer_bits(source->get_format())&get_gl_buffer_bits(target.get_format());
 
 	if(ARB_direct_state_access)
+	{
+		target.refresh();
 		glBlitNamedFramebuffer(source->id, target.id, 0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
+	}
 	else
 	{
 		glBindFramebuffer(GL_READ_FRAMEBUFFER, source->id);