bool render()
{
glm::vec2 WindowSize(this->getWindowSize());
{
float Aspect = (WindowSize.x * 0.33f) / (WindowSize.y * 0.50f);
glm::mat4 Projection = glm::perspective(glm::pi<float>() * 0.25f, Aspect, 0.1f, 100.0f);
glm::mat4 MVP = Projection * this->view() * glm::mat4(1.0f);
*UniformPointer = MVP;
}
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindBuffersBase(GL_UNIFORM_BUFFER, semantic::uniform::TRANSFORM0, 1, &BufferName[buffer::TRANSFORM]);
glBindTextures(semantic::sampler::DIFFUSE, 1, &TextureName);
glBindVertexArray(VertexArrayName);
glBindVertexBuffer(semantic::buffer::STATIC, BufferName[buffer::VERTEX], 0, GLsizei(sizeof(vertex)));
for(std::size_t Index = 0; Index < viewport::MAX; ++Index)
{
glViewportIndexedf(0,
Viewport[Index].x,
Viewport[Index].y,
Viewport[Index].z,
Viewport[Index].w);
glBindSamplers(0, 1, &SamplerName[Index]);
glDrawArraysInstanced(GL_TRIANGLES, 0, VertexCount, 1);
}
return true;
}
void RadixSort::SortBits (int bits)
{
// pass current bit shift to the shader programs
glProgramUniform1i (counting.get (), counting_bitshift, bits);
glProgramUniform1i (globalsort.get (), globalsort_bitshift, bits);
// set buffer bindings
{
GLuint bufs[4] = { buffer, prefixsums, blocksums.front (), result };
glBindBuffersBase (GL_SHADER_STORAGE_BUFFER, 0, 4, bufs);
}
// counting
counting.Use ();
glDispatchCompute (numblocks, 1, 1);
glMemoryBarrier (GL_SHADER_STORAGE_BARRIER_BIT);
// create block sums level by level
blockscan.Use ();
uint32_t numblocksums = (4 * numblocks) / blocksize;
for (int i = 0; i < blocksums.size () - 1; i++)
{
glBindBuffersBase (GL_SHADER_STORAGE_BUFFER, 0, 2, &blocksums[i]);
glDispatchCompute (numblocksums > 0 ? numblocksums : 1, 1, 1);
numblocksums /= blocksize;
glMemoryBarrier (GL_SHADER_STORAGE_BARRIER_BIT);
}
// add block sums level by level (in reversed order)
addblocksum.Use ();
for (int i = blocksums.size () - 3; i >= 0; i--)
{
uint32_t numblocksums = (4 * numblocks) / intpow (blocksize, i + 1);
glBindBuffersBase (GL_SHADER_STORAGE_BUFFER, 0, 2, &blocksums[i]);
glDispatchCompute (numblocksums > 0 ? numblocksums : 1, 1, 1);
glMemoryBarrier (GL_SHADER_STORAGE_BARRIER_BIT);
}
// map values to their global position in the output buffer
{
GLuint bufs[2] = { buffer, prefixsums };
glBindBuffersBase (GL_SHADER_STORAGE_BUFFER, 0, 2, bufs);
}
globalsort.Use ();
glDispatchCompute (numblocks, 1, 1);
glMemoryBarrier (GL_SHADER_STORAGE_BARRIER_BIT);
}
void display()
{
{
// Compute the MVP (Model View Projection matrix)
float Aspect = (Window.Size.x * 0.33f) / (Window.Size.y * 0.50f);
glm::mat4 Projection = glm::perspective(45.0f, Aspect, 0.1f, 100.0f);
glm::mat4 ViewTranslateZ = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, 0.0f, -Window.TranlationCurrent.y));
glm::mat4 ViewRotateX = glm::rotate(ViewTranslateZ, Window.RotationCurrent.y, glm::vec3(1.f, 0.f, 0.f));
glm::mat4 ViewRotateY = glm::rotate(ViewRotateX, Window.RotationCurrent.x, glm::vec3(0.f, 1.f, 0.f));
glm::mat4 View = ViewRotateY;
glm::mat4 Model = glm::mat4(1.0f);
glm::mat4 MVP = Projection * View * Model;
*UniformPointer = MVP;
}
glFlushMappedBufferRange(GL_UNIFORM_BUFFER, 0, sizeof(glm::mat4));
glClearBufferfv(GL_COLOR, 0, &glm::vec4(1.0f, 0.5f, 0.0f, 1.0f)[0]);
glBindProgramPipeline(PipelineName);
glBindBuffersBase(GL_UNIFORM_BUFFER, glf::semantic::uniform::TRANSFORM0, 1, &BufferName[buffer::TRANSFORM]);
glBindTextures(glf::semantic::sampler::DIFFUSE, 1, &TextureName);
glBindVertexArray(VertexArrayName);
glBindVertexBuffer(glf::semantic::buffer::STATIC, BufferName[buffer::VERTEX], 0, GLsizei(sizeof(vertex)));
for(std::size_t Index = 0; Index < viewport::MAX; ++Index)
{
glViewportIndexedf(0,
Viewport[Index].x,
Viewport[Index].y,
Viewport[Index].z,
Viewport[Index].w);
glBindSamplers(0, 1, &SamplerName[Index]);
glDrawArraysInstanced(GL_TRIANGLES, 0, VertexCount, 1);
}
glf::checkError("display");
glf::swapBuffers();
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_GL44_nglBindBuffersBase(JNIEnv *env, jclass clazz, jint target, jint first, jint count, jlong buffers, jlong function_pointer) {
const GLuint *buffers_address = (const GLuint *)(intptr_t)buffers;
glBindBuffersBasePROC glBindBuffersBase = (glBindBuffersBasePROC)((intptr_t)function_pointer);
glBindBuffersBase(target, first, count, buffers_address);
}