ShaderColorGeometry::ShaderColorGeometry(GraphicContext &gc)
{
ShaderObject vertex_shader(gc, shadertype_vertex, vertex);
if(!vertex_shader.compile())
{
throw Exception(string_format("Unable to compile vertex shader object: %1", vertex_shader.get_info_log()));
}
ShaderObject geometry_shader(gc, shadertype_geometry, geometry);
if(!geometry_shader.compile())
{
throw Exception(string_format("Unable to compile geometry shader object: %1", geometry_shader.get_info_log()));
}
if (!glProgramParameteri)
throw Exception("Geomtry shader is not available");
ShaderObject fragment_shader(gc, shadertype_fragment, fragment);
if(!fragment_shader.compile())
{
throw Exception(string_format("Unable to compile fragment shader object: %1", fragment_shader.get_info_log()));
}
program_object = ProgramObject(gc);
program_object.attach(vertex_shader);
program_object.attach(geometry_shader);
program_object.attach(fragment_shader);
program_object.bind_attribute_location(0, "InPosition");
program_object.bind_attribute_location(1, "InColor");
program_object.bind_frag_data_location(0, "cl_FragColor");
if (!program_object.link())
{
throw Exception(string_format("Unable to link program object: %1", program_object.get_info_log()));
}
program_object.set_uniform1i("Texture0", 0);
gpu_uniforms = clan::UniformVector<ProgramUniforms>(gc, 1);
}
GL1GraphicContextProvider::GL1GraphicContextProvider(OpenGLWindowProvider * render_window)
: render_window(render_window),
prim_arrays_set(false), num_set_tex_arrays(0),
primitives_array_texture_set(false), primitives_array_texindex_set(false), scissor_enabled(false),
framebuffer_bound(false)
{
check_opengl_version();
max_texture_coords = get_max_texture_coords();
// Limit the internal texture coords, to avoid situations where the opengl driver says there are unlimited texture coords
if (max_texture_coords > 32)
max_texture_coords = 32;
// Hack, so the sprite render batcher does not exceed the allowed number of textures
if (max_texture_coords < RenderBatchTriangle::max_textures)
{
if (max_texture_coords > 0)
{
RenderBatchTriangle::max_textures = max_texture_coords;
}
else
{
RenderBatchTriangle::max_textures = 1;
}
}
selected_textures.resize(max_texture_coords);
internal_program_provider = new GL1ProgramObjectProvider(this); // <-- To be owned by "standard_program"
internal_program = ProgramObject(internal_program_provider);
// Enable point sprites for legacy opengl
glEnable(GL_POINT_SPRITE);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
SharedGCData::add_provider(this);
}
Shader::Shader(GraphicContext &gc)
{
ShaderLanguage shader_language = gc.get_shader_language();
ShaderObject vertex_shader(gc, shadertype_vertex, shader_language==shader_glsl ? vertex_glsl : vertex_hlsl);
if(!vertex_shader.compile())
{
std::string log = vertex_shader.get_info_log();
throw Exception(string_format("Unable to compile vertex shader object: %1", log));
}
ShaderObject fragment_shader(gc, shadertype_fragment, shader_language==shader_glsl ? fragment_glsl : fragment_hlsl);
if(!fragment_shader.compile())
{
std::string log = fragment_shader.get_info_log();
throw Exception(string_format("Unable to compile fragment shader object: %1", log));
}
program_object = ProgramObject(gc);
program_object.attach(vertex_shader);
program_object.attach(fragment_shader);
program_object.bind_attribute_location(0, "InPosition");
program_object.bind_attribute_location(1, "InNormal");
program_object.bind_attribute_location(2, "InMaterialAmbient");
program_object.bind_frag_data_location(0, "cl_FragColor");
if (!program_object.link())
{
throw Exception(string_format("Unable to link program object: %1", program_object.get_info_log()));
}
program_object.set_uniform_buffer_index("ProgramUniforms", 0);
gpu_uniforms = clan::UniformVector<ProgramUniforms>(gc, 1);
uniforms.LightAmbient = Vec4f(0.2f, 0.2f, 0.2f, 1.0f);
uniforms.LightVector = Vec3f(0.0f, 0.0f, -1.0f);
uniforms.LightDiffuse = Vec4f(0.7f, 0.7f, 0.7f, 1.0f);
}