On 08/04/16 00:45, Brian Paul wrote:
If the first call in a GL app is glReadPixels(GL_FRONT) we'd fail the assert(st->ctx->FragmentProgram._Current) at st_atom_shader.c:114 in update_fp().This is because we were calling st_validate_state() without first updating Mesa state with _mesa_update_state(). The regression came from commit 83b589301f4a150f4 "st/mesa: fix frontbuffer glReadPixels regressions". The new piglit gl-1.0-simple-readbuffer test exercises this. Cc: "11.1 11.2" <mesa-sta...@lists.freedesktop.org> --- src/mesa/state_tracker/st_cb_fbo.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c index ff570e0..456ad83 100644 --- a/src/mesa/state_tracker/st_cb_fbo.c +++ b/src/mesa/state_tracker/st_cb_fbo.c @@ -40,6 +40,7 @@ #include "main/glformats.h" #include "main/macros.h" #include "main/renderbuffer.h" +#include "main/state.h" #include "pipe/p_context.h" #include "pipe/p_defines.h" @@ -729,6 +730,7 @@ st_ReadBuffer(struct gl_context *ctx, GLenum buffer) fb->Attachment[fb->_ColorReadBufferIndex].Type == GL_NONE) { /* add the buffer */ st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex); + _mesa_update_state(ctx); st_validate_state(st, ST_PIPELINE_RENDER); } }
Reviewed-by: Jose Fonseca <jfons...@vmware.com> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
