diff options
| -rw-r--r-- | src/mesa/main/buffers.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c index 26dafd1b786..a28c5831576 100644 --- a/src/mesa/main/buffers.c +++ b/src/mesa/main/buffers.c @@ -222,6 +222,12 @@ read_buffer_enum_to_index(GLenum buffer) } } +static bool +is_legal_es3_readbuffer_enum(GLenum buf) +{ + return buf == GL_BACK || buf == GL_NONE || + (buf >= GL_COLOR_ATTACHMENT0 && buf <= GL_COLOR_ATTACHMENT31); +} /** * Called by glDrawBuffer() and glNamedFramebufferDrawBuffer(). @@ -715,7 +721,11 @@ read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb, } else { /* general case / window-system framebuffer */ - srcBuffer = read_buffer_enum_to_index(buffer); + if (_mesa_is_gles3(ctx) && !is_legal_es3_readbuffer_enum(buffer)) + srcBuffer = -1; + else + srcBuffer = read_buffer_enum_to_index(buffer); + if (srcBuffer == -1) { _mesa_error(ctx, GL_INVALID_ENUM, "%s(invalid buffer %s)", caller, |