void RenderBatchTriangle::flush(GraphicContext &gc)
{
if (position > 0)
{
gc.set_program_object(program_sprite);
int gpu_index;
VertexArrayVector<SpriteVertex> gpu_vertices(batch_buffer->get_vertex_buffer(gc, gpu_index));
if (prim_array[gpu_index].is_null())
{
prim_array[gpu_index] = PrimitivesArray(gc);
prim_array[gpu_index].set_attributes(0, gpu_vertices, cl_offsetof(SpriteVertex, position));
prim_array[gpu_index].set_attributes(1, gpu_vertices, cl_offsetof(SpriteVertex, color));
prim_array[gpu_index].set_attributes(2, gpu_vertices, cl_offsetof(SpriteVertex, texcoord));
prim_array[gpu_index].set_attributes(3, gpu_vertices, cl_offsetof(SpriteVertex, texindex));
if (glyph_blend.is_null())
{
BlendStateDescription blend_desc;
blend_desc.set_blend_function(blend_constant_color, blend_one_minus_src_color, blend_zero, blend_one);
glyph_blend = BlendState(gc, blend_desc);
}
}
gpu_vertices.upload_data(gc, 0, vertices, position);
for (int i = 0; i < num_current_textures; i++)
gc.set_texture(i, current_textures[i]);
if (use_glyph_program)
{
gc.set_blend_state(glyph_blend, constant_color);
gc.draw_primitives(type_triangles, position, prim_array[gpu_index]);
gc.reset_blend_state();
}
else
{
gc.draw_primitives(type_triangles, position, prim_array[gpu_index]);
}
for (int i = 0; i < num_current_textures; i++)
gc.reset_texture(i);
gc.reset_program_object();
position = 0;
for (int i = 0; i < num_current_textures; i++)
current_textures[i] = Texture2D();
num_current_textures = 0;
}
}
void RenderBatchPoint::flush(GraphicContext &gc)
{
if (position > 0)
{
gc.set_program_object(program_color_only);
int gpu_index;
VertexArrayVector<PointVertex> gpu_vertices(batch_buffer->get_vertex_buffer(gc, gpu_index));
if (prim_array[gpu_index].is_null())
{
prim_array[gpu_index] = PrimitivesArray(gc);
prim_array[gpu_index].set_attributes(0, gpu_vertices, cl_offsetof(PointVertex, position));
prim_array[gpu_index].set_attributes(1, gpu_vertices, cl_offsetof(PointVertex, color));
}
gpu_vertices.upload_data(gc, 0, vertices, position);
gc.draw_primitives(type_points, position, prim_array[gpu_index]);
gc.reset_program_object();
position = 0;
}
}
void App::draw_texture(GraphicContext &gc, const Rectf &rect, const Colorf &color, const Rectf &texture_unit1_coords)
{
Vec2f positions[6] =
{
Vec2f(rect.left, rect.top),
Vec2f(rect.right, rect.top),
Vec2f(rect.left, rect.bottom),
Vec2f(rect.right, rect.top),
Vec2f(rect.left, rect.bottom),
Vec2f(rect.right, rect.bottom)
};
Vec2f tex1_coords[6] =
{
Vec2f(texture_unit1_coords.left, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.left, texture_unit1_coords.bottom),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.left, texture_unit1_coords.bottom),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.bottom)
};
PrimitivesArray prim_array(gc);
prim_array.set_attributes(0, positions);
prim_array.set_attribute(1, color);
prim_array.set_attributes(2, tex1_coords);
gc.draw_primitives(cl_triangles, 6, prim_array);
}
void Model_Impl::Draw(GraphicContext &gc, GraphicStore *gs, const Mat4f &modelview_matrix)
{
Mat4f matrix_modelview_projection = gs->camera_projection * modelview_matrix;
Mat3f normal_matrix = Mat3f(modelview_matrix);
normal_matrix.inverse();
normal_matrix.transpose();
PrimitivesArray prim_array(gc);
prim_array.set_attributes(0, vbo_positions, 3, type_float, 0);
prim_array.set_attributes(1, vbo_normals, 3, type_float, 0);
gs->shader_color.SetMaterial(material_shininess, material_emission, material_ambient, material_specular);
gs->shader_color.Use(gc, modelview_matrix, matrix_modelview_projection, Mat4f(normal_matrix));
gc.draw_primitives(type_triangles, vbo_size, prim_array);
}
void ParticleObject::Draw(GraphicContext &gc, GraphicStore *gs, const Mat4f &modelview_matrix)
{
Mat4f matrix_modelview_projection = gs->camera_projection * modelview_matrix;
PrimitivesArray prim_array(gc);
prim_array.set_attributes(0, object_positions_vbo, 3, type_float, 0);
prim_array.set_attributes(1, object_colours_vbo, 4, type_float, 0);
gs->shader_color_geometry.Use(gc, matrix_modelview_projection);
gc.set_texture(0, gs->texture_ball);
gc.draw_primitives(type_points, num_points, prim_array);
gc.reset_texture(0);
}
void HSV::render_texture(Canvas &canvas, ProgramObject &program, Texture &texture, float hue_offset)
{
GraphicContext gc = canvas.get_gc();
Rectf rect(0.0f, 0.0f, (float)gc.get_width(), (float)gc.get_height());
Rectf texture_unit1_coords(0.0f, 0.0f, 1.0f, 1.0f);
Vec2f positions[6] =
{
Vec2f(rect.left, rect.top),
Vec2f(rect.right, rect.top),
Vec2f(rect.left, rect.bottom),
Vec2f(rect.right, rect.top),
Vec2f(rect.left, rect.bottom),
Vec2f(rect.right, rect.bottom)
};
Vec2f tex1_coords[6] =
{
Vec2f(texture_unit1_coords.left, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.left, texture_unit1_coords.bottom),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.top),
Vec2f(texture_unit1_coords.left, texture_unit1_coords.bottom),
Vec2f(texture_unit1_coords.right, texture_unit1_coords.bottom)
};
PrimitivesArray primarray(gc);
VertexArrayVector<Vec2f> gpu_positions = VertexArrayVector<Vec2f>(gc, positions, 6);
VertexArrayVector<Vec2f> gpu_tex1_coords = VertexArrayVector<Vec2f>(gc, tex1_coords, 6);
primarray.set_attributes(0, gpu_positions);
primarray.set_attributes(1, gpu_tex1_coords);
ProgramUniforms buffer;
buffer.cl_ModelViewProjectionMatrix = canvas.get_projection() * canvas.get_modelview();
buffer.HueOffset0 = hue_offset;
UniformVector<ProgramUniforms> uniform_vector(gc, &buffer, 1);
gc.set_uniform_buffer(0, uniform_vector);
gc.set_texture(0, texture);
gc.set_program_object(program);
gc.draw_primitives(type_triangles, 6, primarray);
gc.reset_program_object();
gc.reset_texture(0);
}
void BloomPass::run(GraphicContext &gc)
{
final_color->set_min_filter(filter_linear);
final_color->set_mag_filter(filter_linear);
ScopeTimeFunction();
setup_bloom_extract(gc);
gc.set_frame_buffer(fb_bloom_extract);
gc.set_viewport(bloom_contribution->get_size());
gc.set_texture(0, final_color.get());
gc.set_blend_state(blend_state);
gc.set_program_object(bloom_shader);
gc.draw_primitives(type_triangles, 6, rect_primarray);
gc.reset_program_object();
gc.reset_texture(0);
gc.reset_frame_buffer();
bloom_blur.blur(gc, tf_rgba8, 4.0f, 15);
}
int App::start(const std::vector<std::string> &args)
{
OpenGLWindowDescription description;
description.set_title("UniformBlock Shader");
//description.set_version(3, 1, false);
description.set_size(Size(1024, 768), true);
DisplayWindow window(description);
InputDevice keyboard = window.get_ic().get_keyboard();
GraphicContext gc = window.get_gc();
Slot slot_input_up = (window.get_ic().get_keyboard()).sig_key_up().connect(this, &App::on_input_up);
Slot slot_window_close = window.sig_window_close().connect(this, &App::window_close);
// Load and link shaders
ProgramObject shader = ProgramObject::load(gc, "Resources/vertex_shader.glsl", "Resources/fragment_shader.glsl");
shader.bind_attribute_location(0, "Position");
if (!shader.link())
throw Exception("Unable to link shader program: Error:" + shader.get_info_log());
int block_size = shader.get_uniform_block_size("TestBlock");
const int num_blocks = 16;
ProgramUniformBlock block(gc, block_size * num_blocks);
std::vector<float> data_to_upload;
data_to_upload.resize((num_blocks * block_size) / sizeof(float) );
float test_colour = 1.0f;
for (int cnt=0; cnt<num_blocks; cnt++)
{
int offset = cnt * block_size / sizeof(float) ;
data_to_upload[offset + 0] = test_colour;
data_to_upload[offset + 1] = 0.5f;
data_to_upload[offset + 2] = 1.0f;
test_colour -= 0.05f;
}
block.upload_data(0, &data_to_upload[0], block_size * num_blocks);
quit = false;
Font font(gc, "tahoma", 32);
clan::ubyte64 startTime = System::get_time();
//// Test code
//GLuint uniform_index = -1;
//const char *names[] = {"src_color"};
//glGetUniformIndices(handle, 1, names, &uniform_index);
//if (uniform_index >=0)
//{
// GLint offset;
// GLint singleSize;
// GLint uniform_type;
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_TYPE, &uniform_type);
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_OFFSET, &offset);
// glGetActiveUniformsiv(handle, 1, &uniform_index, GL_UNIFORM_SIZE, &singleSize);
// if ((uniform_type != GL_FLOAT_VEC3) || (offset !=0) || (singleSize != 1))
// {
// throw Exception("well it seems it does not work");
// }
//}
while (!quit)
{
gc.clear(Colorf(0.1f, 0.1f, 0.2f));
OpenGL::check_error();
for (int test_run_y=0; test_run_y < 16; test_run_y++)
{
shader.set_uniform_block("TestBlock", block, test_run_y*block_size);
for (int test_run_x=0; test_run_x < 16; test_run_x++)
{
Vec2f positions[3];
float size = 32.0f;
positions[0].x = test_run_x * size;
positions[0].y = test_run_y * size + size;
positions[1].x = test_run_x * size + size;
positions[1].y = test_run_y * size + size;
positions[2].x = test_run_x * size + size;
positions[2].y = test_run_y * size;
PrimitivesArray prim_array(gc);
prim_array.set_attributes(0, positions);
gc.set_program_object(shader, cl_program_matrix_modelview_projection);
gc.draw_primitives(cl_triangles, 3, prim_array);
gc.reset_program_object();
}
}
font.draw_text(gc, 32, 200, "Hello World");
window.flip(1);
KeepAlive::process();
}
return 0;
}
