#include <stdexcept>
#include <msp/core/algorithm.h>
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_sampler_objects.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>
-#include "blend.h"
-#include "buffer.h"
-#include "deviceinfo.h"
-#include "depthtest.h"
#include "pipelinestate.h"
-#include "program.h"
-#include "stenciltest.h"
-#include "texture.h"
-#include "uniformblock.h"
-#include "vertexsetup.h"
using namespace std;
namespace Msp {
namespace GL {
-const PipelineState *PipelineState::last_applied = 0;
-vector<int> PipelineState::bound_tex_targets;
-
-PipelineState::PipelineState():
- shprog(0),
- vertex_setup(0),
- front_face(COUNTERCLOCKWISE),
- face_cull(NO_CULL),
- enabled_clip_planes(0),
- depth_test(0),
- stencil_test(0),
- blend(0),
- changes(0)
-{
- if(!ARB_direct_state_access && bound_tex_targets.empty())
- bound_tex_targets.resize(Limits::get_global().max_texture_bindings);
-}
-
-PipelineState::~PipelineState()
-{
- if(this==last_applied)
- last_applied = 0;
-}
-
template<typename T>
void PipelineState::set(T &target, T value, unsigned flag)
{
}
}
+void PipelineState::set_framebuffer(const Framebuffer *f)
+{
+ set(framebuffer, f, FRAMEBUFFER);
+}
+
+void PipelineState::set_viewport(const Rect *v)
+{
+ set(viewport, v, VIEWPORT);
+}
+
+void PipelineState::set_scissor(const Rect *s)
+{
+ set(scissor, s, SCISSOR);
+}
+
void PipelineState::set_shader_program(const Program *p)
{
set(shprog, p, SHPROG);
if((tex!=0)!=(samp!=0))
throw invalid_argument("PipelineState::set_texture");
- vector<BoundTexture>::iterator i = lower_bound_member(textures, binding, &BoundTexture::binding);
+ auto i = lower_bound_member(textures, binding, &BoundTexture::binding);
if(i==textures.end() || i->binding!=binding)
i = textures.insert(i, BoundTexture(binding));
if(tex!=i->texture || samp!=i->sampler)
}
}
-void PipelineState::set_uniforms(const DefaultUniformBlock *block)
+void PipelineState::set_uniform_block(int binding, const UniformBlock *block)
{
- set_uniform_block_(-1, block);
-}
-
-void PipelineState::set_uniform_block(unsigned binding, const BufferBackedUniformBlock *block)
-{
- set_uniform_block_(binding, block);
-}
-
-void PipelineState::set_uniform_block_(int binding, const UniformBlock *block)
-{
- vector<BoundUniformBlock>::iterator i = lower_bound_member(uniform_blocks, binding, &BoundUniformBlock::binding);
+ auto i = lower_bound_member(uniform_blocks, binding, &BoundUniformBlock::binding);
if(i==uniform_blocks.end() || i->binding!=binding)
i = uniform_blocks.insert(i, BoundUniformBlock(binding));
if(block!=i->block || binding<0)
set(blend, b, BLEND);
}
-void PipelineState::apply() const
-{
- apply(this==last_applied ? changes : ~0U);
-}
-
-void PipelineState::apply(unsigned mask) const
-{
- if(mask&SHPROG)
- glUseProgram(shprog ? shprog->get_id() : 0);
-
- if(mask&VERTEX_SETUP)
- {
- glBindVertexArray(vertex_setup ? vertex_setup->get_id() : 0);
- if(vertex_setup)
- vertex_setup->refresh();
- }
-
- if(mask&FACE_CULL)
- {
- glFrontFace(front_face==CLOCKWISE ? GL_CW : GL_CCW);
-
- if(face_cull!=NO_CULL && front_face!=NON_MANIFOLD)
- {
- glEnable(GL_CULL_FACE);
- glCullFace(face_cull==CULL_FRONT ? GL_FRONT : GL_BACK);
- }
- else
- glDisable(GL_CULL_FACE);
- }
-
- if(mask&CLIP_PLANES)
- {
- unsigned max_clip_planes = Limits::get_global().max_clip_planes;
- for(unsigned i=0; i<max_clip_planes; ++i)
- {
- if((enabled_clip_planes>>i)&1)
- glEnable(GL_CLIP_PLANE0+i);
- else
- glDisable(GL_CLIP_PLANE0+i);
- }
- }
-
- if(mask&TEXTURES)
- {
- if(last_applied && this!=last_applied)
- {
- vector<BoundTexture>::const_iterator i = textures.begin();
- vector<BoundTexture>::const_iterator j = last_applied->textures.begin();
- while(j!=last_applied->textures.end())
- {
- if(i==textures.end() || j->binding<i->binding)
- {
- if(bound_tex_targets[j->binding])
- {
- if(ARB_direct_state_access)
- glBindTextureUnit(j->binding, 0);
- else
- {
- glActiveTexture(GL_TEXTURE0+j->binding);
- glBindTexture(bound_tex_targets[j->binding], 0);
- }
- }
- ++j;
- }
- else
- {
- if(i->binding==j->binding)
- ++j;
- ++i;
- }
- }
- }
-
- for(vector<BoundTexture>::const_iterator i=textures.begin(); i!=textures.end(); ++i)
- if(i->changed || mask==~0U)
- {
- if(i->texture && i->sampler)
- {
- if(ARB_direct_state_access)
- glBindTextureUnit(i->binding, i->texture->get_id());
- else
- {
- glActiveTexture(GL_TEXTURE0+i->binding);
- if(bound_tex_targets[i->binding] && static_cast<int>(i->texture->get_target())!=bound_tex_targets[i->binding])
- glBindTexture(bound_tex_targets[i->binding], 0);
- glBindTexture(i->texture->get_target(), i->texture->get_id());
- bound_tex_targets[i->binding] = i->texture->get_target();
- }
-
- glBindSampler(i->binding, i->sampler->get_id());
- i->sampler->refresh();
- }
- else if(bound_tex_targets[i->binding])
- {
- if(ARB_direct_state_access)
- glBindTextureUnit(i->binding, 0);
- else
- {
- glActiveTexture(GL_TEXTURE0+i->binding);
- glBindTexture(bound_tex_targets[i->binding], 0);
- bound_tex_targets[i->binding] = 0;
- }
- }
-
- i->changed = false;
- }
- }
-
- if(mask&UNIFORMS)
- {
- if(last_applied && this!=last_applied)
- {
- vector<BoundUniformBlock>::const_iterator i = uniform_blocks.begin();
- vector<BoundUniformBlock>::const_iterator j = last_applied->uniform_blocks.begin();
- while(j!=last_applied->uniform_blocks.end())
- {
- if(i==uniform_blocks.end() || j->binding<i->binding)
- {
- glBindBufferBase(GL_UNIFORM_BUFFER, j->binding, 0);
- ++j;
- }
- else
- {
- if(i->binding==j->binding)
- ++j;
- ++i;
- }
- }
- }
-
- for(vector<BoundUniformBlock>::const_iterator i=uniform_blocks.begin(); i!=uniform_blocks.end(); ++i)
- if(i->changed || mask==~0U)
- {
- if(i->block)
- {
- if(i->binding>=0)
- {
- const BufferBackedUniformBlock *block = static_cast<const BufferBackedUniformBlock *>(i->block);
- glBindBufferRange(GL_UNIFORM_BUFFER, i->binding, block->get_buffer()->get_id(), block->get_offset(), block->get_data_size());
- }
- else
- static_cast<const DefaultUniformBlock *>(i->block)->apply();
- }
- else
- glBindBufferBase(GL_UNIFORM_BUFFER, i->binding, 0);
-
- i->changed = false;
- }
- }
-
- if(mask&DEPTH_TEST)
- {
- if(depth_test && depth_test->enabled)
- {
- glEnable(GL_DEPTH_TEST);
- glDepthFunc(get_gl_predicate(depth_test->compare));
- }
- else
- glDisable(GL_DEPTH_TEST);
-
- glDepthMask(!depth_test || depth_test->write);
- }
-
- if(mask&STENCIL_TEST)
- {
- if(stencil_test && stencil_test->enabled)
- {
- glEnable(GL_STENCIL_TEST);
- glStencilFunc(get_gl_predicate(stencil_test->compare), stencil_test->reference, 0xFFFFFFFF);
- glStencilOp(get_gl_stencil_op(stencil_test->stencil_fail_op), get_gl_stencil_op(stencil_test->depth_fail_op), get_gl_stencil_op(stencil_test->depth_pass_op));
- }
- else
- glDisable(GL_STENCIL_TEST);
- }
-
- if(mask&BLEND)
- {
- if(blend && blend->enabled)
- {
- glEnable(GL_BLEND);
- glBlendEquation(get_gl_blend_equation(blend->equation));
- glBlendFunc(get_gl_blend_factor(blend->src_factor), get_gl_blend_factor(blend->dst_factor));
- glBlendColor(blend->constant.r, blend->constant.g, blend->constant.b, blend->constant.a);
- }
- else
- glDisable(GL_BLEND);
- }
-
- last_applied = this;
- changes &= ~mask;
-}
-
-void PipelineState::clear()
-{
- if(last_applied)
- {
- glUseProgram(0);
- glBindVertexArray(0);
-
- unsigned max_clip_planes = Limits::get_global().max_clip_planes;
- for(unsigned i=0; i<max_clip_planes; ++i)
- if((last_applied->enabled_clip_planes>>i)&1)
- glDisable(GL_CLIP_PLANE0+i);
-
- for(vector<BoundTexture>::const_iterator i=last_applied->textures.begin(); i!=last_applied->textures.end(); ++i)
- if(i->texture && i->sampler)
- {
- if(ARB_direct_state_access)
- glBindTextureUnit(i->binding, 0);
- else
- {
- glActiveTexture(GL_TEXTURE0+i->binding);
- glBindTexture(bound_tex_targets[i->binding], 0);
- bound_tex_targets[i->binding] = 0;
- }
- }
-
- for(vector<BoundUniformBlock>::const_iterator i=last_applied->uniform_blocks.begin(); i!=last_applied->uniform_blocks.end(); ++i)
- if(i->block)
- glBindBufferBase(GL_UNIFORM_BUFFER, i->binding, 0);
-
- glDisable(GL_DEPTH_TEST);
- glDepthMask(true);
- glDisable(GL_STENCIL_TEST);
- glDisable(GL_BLEND);
-
- last_applied = 0;
- }
-}
-
PipelineState::BoundTexture::BoundTexture(unsigned b):
binding(b),
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