Make it possible to specify explicit clear values

[libs/gl.git] / source / render / renderer.cpp

diff --git a/source/render/renderer.cpp b/source/render/renderer.cpp
index 52edc24924d73c262243fbd1226a296b5f8f2d0f..aa6c9b55a4d4206ef458012e280efdacb3e9aba5 100644 (file)
--- a/source/render/renderer.cpp
+++ b/source/render/renderer.cpp
@@ -1,6 +1,3 @@
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/ext_framebuffer_blit.h>
-#include <msp/gl/extensions/ext_framebuffer_object.h>
 #include "batch.h"
 #include "buffer.h"
 #include "camera.h"
@@ -24,13 +21,15 @@ using namespace std;
 namespace Msp {
 namespace GL {
 
-Renderer::Renderer()
+Renderer::Renderer():
+       changed(0)
 {
        state_stack.reserve(16);
        state_stack.push_back(State());
        shdata_stack.reserve(32);
        state = &state_stack.back();
        add_shader_data(standard_shdata);
+       commands.use_pipeline(pipeline_state);
 }
 
 Renderer::~Renderer()
@@ -90,7 +89,7 @@ void Renderer::set_texture(Tag tag, const Texture *tex, const Sampler *samp)
                        flush_textures();
        }
 
-       for(vector<BoundTexture>::iterator i=texture_stack.end(); i!=texture_stack.begin(); )
+       for(auto i=texture_stack.end(); i!=texture_stack.begin(); )
                if((--i)->tag==tag)
                {
                        i->replaced = texture_stack.size();
@@ -244,30 +243,24 @@ void Renderer::render(const Renderable &renderable, Tag tag)
                renderable.render(*this, tag);
 }
 
-void Renderer::clear()
-{
-       clear(COLOR_BUFFER_BIT|DEPTH_BUFFER_BIT|STENCIL_BUFFER_BIT);
-}
-
-void Renderer::clear(BufferBits buffers)
+void Renderer::clear(const ClearValue *values)
 {
        pipeline_state.set_framebuffer(state->framebuffer);
-       pipeline_state.apply();
-       glClear(buffers);
+       commands.clear(values);
 }
 
 void Renderer::draw(const Batch &batch)
 {
        apply_state();
-
-       batch.draw();
+       batch.refresh();
+       commands.draw(batch);
 }
 
 void Renderer::draw_instanced(const Batch &batch, unsigned count)
 {
        apply_state();
-
-       batch.draw_instanced(count);
+       batch.refresh();
+       commands.draw_instanced(batch, count);
 }
 
 void Renderer::resolve_multisample(Framebuffer &target, BufferBits buffers)
@@ -280,20 +273,8 @@ void Renderer::resolve_multisample(Framebuffer &target, BufferBits buffers)
        if(target.get_width()!=width || target.get_height()!=height)
                throw incompatible_data("Renderer::resolve_multisample");
 
-       if(ARB_direct_state_access)
-               glBlitNamedFramebuffer(state->framebuffer->get_id(), target.get_id(), 0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
-       else
-       {
-               glBindFramebuffer(GL_READ_FRAMEBUFFER, state->framebuffer->get_id());
-               glBindFramebuffer(GL_DRAW_FRAMEBUFFER, target.get_id());
-
-               target.refresh();
-
-               glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
-
-               glBindFramebuffer(GL_FRAMEBUFFER, 0);
-               pipeline_state.set_framebuffer(0);
-       }
+       pipeline_state.set_framebuffer(state->framebuffer);
+       commands.resolve_multisample(target, buffers);
 }
 
 void Renderer::apply_state()
@@ -333,15 +314,15 @@ void Renderer::apply_state()
        if(state->texture_count<texture_stack.size())
                flush_textures();
 
-       for(vector<BoundTexture>::const_iterator i=texture_stack.begin(); i!=texture_stack.end(); ++i)
+       for(const BoundTexture &t: texture_stack)
        {
-               int unit = (i->tag.id ? state->shprog->get_uniform_binding(i->tag) : i->unit);
+               int unit = (t.tag.id ? state->shprog->get_uniform_binding(t.tag) : t.unit);
                if(unit>=0)
-                       pipeline_state.set_texture(unit, i->texture, i->sampler);
+                       pipeline_state.set_texture(unit, t.texture, t.sampler);
        }
 
        bool shdata_changed = changed&SHADER_DATA;
-       for(vector<BoundProgramData>::const_iterator i=shdata_stack.begin(); (!shdata_changed && i!=shdata_stack.end()); ++i)
+       for(auto i=shdata_stack.begin(); (!shdata_changed && i!=shdata_stack.end()); ++i)
                shdata_changed = (i->shdata->get_generation()!=i->generation);
        bool extra_shdata = (shdata_stack.size()>state->shdata_count);
 
@@ -349,10 +330,10 @@ void Renderer::apply_state()
        {
                if(extra_shdata)
                        shdata_stack.erase(shdata_stack.begin()+state->shdata_count, shdata_stack.end());
-               for(vector<BoundProgramData>::const_iterator i=shdata_stack.begin(); i!=shdata_stack.end(); ++i)
+               for(const BoundProgramData &d: shdata_stack)
                {
-                       i->shdata->apply(*state->shprog, pipeline_state);
-                       i->generation = i->shdata->get_generation();
+                       d.shdata->apply(*state->shprog, pipeline_state);
+                       d.generation = d.shdata->get_generation();
                }
                changed &= ~SHADER_DATA;
        }
@@ -360,8 +341,6 @@ void Renderer::apply_state()
        pipeline_state.set_depth_test(state->depth_test);
        pipeline_state.set_stencil_test(state->stencil_test);
        pipeline_state.set_blend(state->blend);
-
-       pipeline_state.apply();
 }
 
 
@@ -385,7 +364,6 @@ Renderer::State::State():
        viewport(0),
        scissor(0),
        texture_count(0),
-       lowest_effect_texunit(Limits::get_global().max_texture_bindings),
        clipping(0),
        shprog(0),
        shdata_count(0),