diff --git a/gfx/drivers/gl1.c b/gfx/drivers/gl1.c index 4ecf6631f8..8ae8ddc231 100644 --- a/gfx/drivers/gl1.c +++ b/gfx/drivers/gl1.c @@ -564,9 +564,31 @@ static void draw_tex(gl1_t *gl1, int pot_width, int pot_height, int width, int h glPixelStorei(GL_UNPACK_ROW_LENGTH, pot_width); glBindTexture(GL_TEXTURE_2D, tex); - /* TODO: We could implement red/blue swap if client GL does not support BGRA... but even MS GDI Generic supports it */ - glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, pot_width, pot_height, 0, format, type, NULL); - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, frame_to_copy); + /* For whatever reason you can't send NULL in GLDirect, + so we send the frame as dummy data */ + glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, pot_width, pot_height, 0, format, type, frame_to_copy); + + uint8_t *frame = (uint8_t*)frame_to_copy; + uint8_t *frame_rgba = NULL; + if (!gl1->supports_bgra) { + frame_rgba = (uint8_t*)malloc(pot_width * pot_height * 4); + if (frame_rgba) { + int x, y; + for (y = 0; y < pot_height; y++) { + for (x = 0; x < pot_width; x++) { + int index = (y * pot_width + x) * 4; + frame_rgba[index + 2] = frame[index + 0]; + frame_rgba[index + 1] = frame[index + 1]; + frame_rgba[index + 0] = frame[index + 2]; + frame_rgba[index + 3] = frame[index + 3]; + } + } + frame = frame_rgba; + } + } + + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, frame); + free(frame_rgba); if (tex == gl1->tex) {