Module: Mesa Branch: master Commit: a88c9296cb079ff42ef901113d0fe772228e6feb URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a88c9296cb079ff42ef901113d0fe772228e6feb
Author: Andre Maasikas <[email protected]> Date: Wed Oct 21 12:23:27 2009 +0300 r600: need to export something from PS Also avoids empty shader for "END" - seems to be somewhat valid fp Maybe this can be done differently in the future (fake FRAG_RESULT_COLOR already in Map_Fragment_Program() or is there a way to program the chip to not hang in case of no exports. --- src/mesa/drivers/dri/r600/r700_assembler.c | 11 ++++++++++- src/mesa/drivers/dri/r600/r700_fragprog.c | 10 +++++++++- 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/r600/r700_assembler.c b/src/mesa/drivers/dri/r600/r700_assembler.c index d0eb994..6ff08e1 100644 --- a/src/mesa/drivers/dri/r600/r700_assembler.c +++ b/src/mesa/drivers/dri/r600/r700_assembler.c @@ -4187,6 +4187,7 @@ GLboolean Process_Fragment_Exports(r700_AssemblerBase *pR700AsmCode, GLbitfield OutputsWritten) { unsigned int unBit; + GLuint export_count = 0; if(pR700AsmCode->depth_export_register_number >= 0) { @@ -4208,6 +4209,7 @@ GLboolean Process_Fragment_Exports(r700_AssemblerBase *pR700AsmCode, { return GL_FALSE; } + export_count++; } unBit = 1 << FRAG_RESULT_DEPTH; if(OutputsWritten & unBit) @@ -4221,8 +4223,15 @@ GLboolean Process_Fragment_Exports(r700_AssemblerBase *pR700AsmCode, { return GL_FALSE; } + export_count++; } - + /* Need to export something, otherwise we'll hang + * results are undefined anyway */ + if(export_count == 0) + { + Process_Export(pR700AsmCode, SQ_EXPORT_PIXEL, 0, 1, 0, GL_FALSE); + } + if(pR700AsmCode->cf_last_export_ptr != NULL) { pR700AsmCode->cf_last_export_ptr->m_Word1.f.cf_inst = SQ_CF_INST_EXPORT_DONE; diff --git a/src/mesa/drivers/dri/r600/r700_fragprog.c b/src/mesa/drivers/dri/r600/r700_fragprog.c index 62a1ea1..3736bce 100644 --- a/src/mesa/drivers/dri/r600/r700_fragprog.c +++ b/src/mesa/drivers/dri/r600/r700_fragprog.c @@ -251,7 +251,15 @@ GLboolean r700TranslateFragmentShader(struct r700_fragment_program *fp, number_of_colors_exported--; } - fp->r700Shader.exportMode = number_of_colors_exported << 1 | z_enabled; + /* illegal to set this to 0 */ + if(number_of_colors_exported || z_enabled) + { + fp->r700Shader.exportMode = number_of_colors_exported << 1 | z_enabled; + } + else + { + fp->r700Shader.exportMode = (1 << 1); + } fp->translated = GL_TRUE; _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
