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#include "glwidget.hpp"
#include "../drape/utils/list_generator.hpp"
#include "../drape/shader_def.hpp"
GLWidget::GLWidget()
{
m_batcher = new Batcher(ReferencePoiner<IBatchFlush>(this));
m_programManager = new GpuProgramManager();
}
void GLWidget::FlushFullBucket(const GLState & state, OwnedPointer<VertexArrayBuffer> bucket)
{
ReferencePoiner<GpuProgram> program = m_programManager->GetProgram(state.GetProgramIndex());
bucket->Build(program);
m_frames[state].push_back(bucket);
}
void GLWidget::UseIncompleteBucket(const GLState &state, ReferencePoiner<VertexArrayBuffer> bucket)
{
ReferencePoiner<GpuProgram> program = m_programManager->GetProgram(state.GetProgramIndex());
bucket->Build(program);
renderBucket(state, bucket);
}
void GLWidget::initializeGL()
{
glClearColor(0.8, 0.8, 0.8, 1.0);
GLFunctions::Init();
glEnable(GL_DEPTH_TEST);
glDepthMask(GL_TRUE);
glDepthFunc(GL_LEQUAL);
glClearDepth(0.0);
vector<UniformValue> uniforms;
float model[16] =
{
-1.0, 0.0, 0.0, 0.0,
0.0, 1.0, 0.0, 0.0,
0.0, 0.0, -1.0, 0.0,
0.0, 0.0, -1.0, 1.0
};
uniforms.push_back(UniformValue("modelView", model));
float p[16] =
{
0.5, 0.0, 0.0, 0.0,
0.0, -0.5, 0.0, 0.0,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0
};
uniforms.push_back(UniformValue("projection", p));
float color[4] = { 1.0, 0.0, 0.0, 1.0 };
uniforms.push_back(UniformValue("color", color[0], color[1], color[2], color[3]));
ListGenerator gen;
gen.SetDepth(0.5);
gen.SetProgram(gpu::SOLID_AREA_PROGRAM);
gen.SetViewport(-1.0f, -1.0f, 2.0f, 2.0f);
gen.SetUniforms(uniforms);
gen.Generate(30, *m_batcher);
}
void GLWidget::paintGL()
{
glClearDepth(1.0);
glDepthFunc(GL_LEQUAL);
glDepthMask(GL_TRUE);
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (!m_frames.empty())
{
frames_t::iterator it = m_frames.begin();
for (; it != m_frames.end(); ++it)
{
for (size_t i = 0; i < it->second.size(); ++i)
{
renderBucket(it->first, it->second[i].GetWeakPointer());
}
}
}
}
void GLWidget::renderBucket(const GLState & state, ReferencePoiner<VertexArrayBuffer> bucket)
{
ReferencePoiner<GpuProgram> program = m_programManager->GetProgram(state.GetProgramIndex());
ApplyState(state, program);
bucket->Render();
}
void GLWidget::resizeGL(int w, int h)
{
glViewport(0, 0, w, h);
}
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