X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fbackends%2Fopengl%2Fpipelinestate_backend.cpp;h=8ffa47fcda75d8ea44e9ff9e74673ca54f43a21a;hb=8f12c5d2527f61183b2ae36aab224eefbf52086a;hp=3b8c6a5ae736c3f33543f9febb1c4b5a17696142;hpb=63458ee3bedacf4d498074fcec15600a4932ae7b;p=libs%2Fgl.git

diff --git a/source/backends/opengl/pipelinestate_backend.cpp b/source/backends/opengl/pipelinestate_backend.cpp
index 3b8c6a5a..8ffa47fc 100644
--- a/source/backends/opengl/pipelinestate_backend.cpp
+++ b/source/backends/opengl/pipelinestate_backend.cpp
@@ -1,5 +1,6 @@
 #include <msp/gl/extensions/arb_direct_state_access.h>
 #include <msp/gl/extensions/arb_sampler_objects.h>
+#include <msp/gl/extensions/arb_shader_image_load_store.h>
 #include <msp/gl/extensions/arb_shader_objects.h>
 #include <msp/gl/extensions/arb_uniform_buffer_object.h>
 #include <msp/gl/extensions/arb_vertex_array_object.h>
@@ -128,7 +129,7 @@ void OpenGLPipelineState::apply() const
 							call.func(call.location, call.size, data+call.location*16);
 					}
 				}
-				else if(r.type==PipelineState::TEXTURE)
+				else if(r.type==PipelineState::SAMPLED_TEXTURE)
 				{
 					if(ARB_direct_state_access)
 						glBindTextureUnit(r.binding, r.texture->id);
@@ -145,6 +146,14 @@ void OpenGLPipelineState::apply() const
 					glBindSampler(r.binding, r.sampler->id);
 					r.sampler->refresh();
 				}
+				else if(r.type==PipelineState::STORAGE_TEXTURE)
+				{
+					static Require _req(ARB_shader_image_load_store);
+					GLenum gl_format = get_gl_pixelformat(r.texture->get_format());
+					glBindImageTexture(r.binding, r.texture->id, 0, true, 0, GL_READ_WRITE, gl_format);
+
+					dev_state.bound_storage_textures[r.binding] = 1;
+				}
 			}
 
 			r.changed = false;
@@ -228,6 +237,11 @@ void OpenGLPipelineState::apply() const
 			glDisable(GL_BLEND);
 			glColorMask(true, true, true, true);
 		}
+
+		if(blend.alpha_to_coverage && self.framebuffer && self.framebuffer->get_format().get_samples()>1)
+			glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);
+		else
+			glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
 	}
 
 	applied_to = &device;
@@ -260,6 +274,13 @@ void OpenGLPipelineState::clear()
 				dev_state.bound_tex_targets[i] = 0;
 			}
 
+		for(unsigned i=0; i<dev_state.bound_storage_textures.size(); ++i)
+			if(dev_state.bound_storage_textures[i])
+			{
+				glBindImageTexture(i, 0, 0, true, 0, GL_READ_ONLY, GL_RGBA8);
+				dev_state.bound_storage_textures[i] = 0;
+			}
+
 		for(unsigned i=0; i<dev_state.bound_uniform_blocks.size(); ++i)
 			if(dev_state.bound_uniform_blocks[i])
 			{