diff options
Diffstat (limited to 'mesalib/src/mesa/main/glformats.c')
| -rw-r--r-- | mesalib/src/mesa/main/glformats.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mesalib/src/mesa/main/glformats.c b/mesalib/src/mesa/main/glformats.c index 77cf26337..9bb341cc0 100644 --- a/mesalib/src/mesa/main/glformats.c +++ b/mesalib/src/mesa/main/glformats.c @@ -1238,6 +1238,22 @@ GLenum _mesa_error_check_format_and_type(const struct gl_context *ctx, GLenum format, GLenum type) { + /* From OpenGL 3.3 spec, page 220: + * "If the format is DEPTH_STENCIL, then values are taken from + * both the depth buffer and the stencil buffer. If there is no + * depth buffer or if there is no stencil buffer, then the error + * INVALID_OPERATION occurs. If the type parameter is not + * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the + * error INVALID_ENUM occurs." + * + * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels + * cannot be used to read depth or stencil in that API. + */ + if (_mesa_is_desktop_gl(ctx) && format == GL_DEPTH_STENCIL + && type != GL_UNSIGNED_INT_24_8 + && type != GL_FLOAT_32_UNSIGNED_INT_24_8_REV) + return GL_INVALID_ENUM; + /* special type-based checks (see glReadPixels, glDrawPixels error lists) */ switch (type) { case GL_BITMAP: |