C++ (Cpp) GL_RenderData::glViewport 예제들

예제 #1

파일: SDL_render_gl.c 프로젝트: Blitzoreo/pcsx2-online

static int
GL_UpdateViewport(SDL_Renderer * renderer)
{
    GL_RenderData *data = (GL_RenderData *) renderer->driverdata;

    if (SDL_CurrentContext != data->context) {
        /* We'll update the viewport after we rebind the context */
        return 0;
    }

    data->glViewport(renderer->viewport.x, renderer->viewport.y,
                     renderer->viewport.w, renderer->viewport.h);

    data->glMatrixMode(GL_PROJECTION);
    data->glLoadIdentity();
    data->glOrtho((GLdouble) 0,
                  (GLdouble) renderer->viewport.w,
                  (GLdouble) renderer->viewport.h,
                  (GLdouble) 0, 0.0, 1.0);
    return 0;
}