-void FlatInput::finalize()
-{
- // Translate the input format to OpenGL's enums.
- GLenum internal_format;
- if (type == GL_FLOAT) {
- internal_format = GL_RGBA32F_ARB;
- } else if (output_linear_gamma) {
- assert(type == GL_UNSIGNED_BYTE);
- internal_format = GL_SRGB8_ALPHA8;
- } else {
- assert(type == GL_UNSIGNED_BYTE);
- internal_format = GL_RGBA8;
- }
- if (pixel_format == FORMAT_RGB) {
- format = GL_RGB;
- } else if (pixel_format == FORMAT_RGBA_PREMULTIPLIED_ALPHA ||
- pixel_format == FORMAT_RGBA_POSTMULTIPLIED_ALPHA) {
- format = GL_RGBA;
- } else if (pixel_format == FORMAT_BGR) {
- format = GL_BGR;
- } else if (pixel_format == FORMAT_BGRA_PREMULTIPLIED_ALPHA ||
- pixel_format == FORMAT_BGRA_POSTMULTIPLIED_ALPHA) {
- format = GL_BGRA;
- } else if (pixel_format == FORMAT_GRAYSCALE) {
- format = GL_LUMINANCE;
- } else {
- assert(false);
- }
-
- // Create the texture itself.
- texture_num = resource_pool->create_2d_texture(internal_format, width, height);
- glBindTexture(GL_TEXTURE_2D, texture_num);
- check_error();
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
- check_error();
- glBindTexture(GL_TEXTURE_2D, 0);
- check_error();
-
- needs_update = true;
- finalized = true;
-}
-
-void FlatInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num)