enum piglit_result
piglit_display(void)
{
bool pass = true;
glClear(GL_COLOR_BUFFER_BIT);
for (int i = 0; true; ++i) {
glUniform1i(render_pass_loc, i);
if (i%2)
piglit_draw_rect(0, -1, 1, 2);
else
piglit_draw_rect(-1, -1, 1, 2);
if (i >= 5)
break;
glTextureBarrier();
}
unsigned color = 1;
color *= 2;
color += 2;
color ^= 1023;
color <<= 2;
const unsigned expected_left[] = { color, 0, 0, 1 };
color %= 32;
const unsigned expected_right[] = { color, 0, 0, 1 };
pass = piglit_probe_rect_rgba_uint(0, 0, width / 2, height,
expected_left) && pass;
pass = piglit_probe_rect_rgba_uint(width / 2, 0, width / 2, height,
expected_right) && pass;
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
glBindBuffer(GL_UNIFORM_BUFFER, BufferName[buffer::TRANSFORM]);
glm::mat4* Pointer = (glm::mat4*)glMapBufferRange(
GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4),
GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, WindowSize.x / WindowSize.y, 0.1f, 100.0f);
glm::mat4 Model = glm::mat4(1.0f);
*Pointer = Projection * this->view() * Model;
// Make sure the uniform buffer is uploaded
glUnmapBuffer(GL_UNIFORM_BUFFER);
}
glClearTexImage(TextureName[texture::COLORBUFFER], 0, GL_RGBA, GL_FLOAT, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferName);
// Bind rendering objects
glBindProgramPipeline(PipelineName[pipeline::TEXTURE]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::DIFFUSE]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
glBindVertexArray(VertexArrayName[pipeline::TEXTURE]);
glBindBufferBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, BufferName[buffer::TRANSFORM]);
for (std::size_t i = 0; i < this->Viewports.size(); ++i)
{
glViewportIndexedfv(0, &this->Viewports[i][0]);
glDrawElementsInstancedBaseVertexBaseInstance(GL_TRIANGLES, ElementCount, GL_UNSIGNED_SHORT, 0, 1, 0, 0);
glTextureBarrier();
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glViewportIndexedf(0, 0, 0, WindowSize.x, WindowSize.y);
glBindProgramPipeline(PipelineName[pipeline::SPLASH]);
glActiveTexture(GL_TEXTURE0);
glBindVertexArray(VertexArrayName[pipeline::SPLASH]);
glBindTexture(GL_TEXTURE_2D, TextureName[texture::COLORBUFFER]);
glDrawArraysInstancedBaseInstance(GL_TRIANGLES, 0, 3, 1, 0);
return true;
}
