diff options
| author | Andre Maasikas <amaasikas@gmail.com> | 2009-10-21 12:23:27 +0300 |
|---|---|---|
| committer | Andre Maasikas <amaasikas@gmail.com> | 2009-10-22 09:44:03 +0300 |
| commit | a88c9296cb079ff42ef901113d0fe772228e6feb (patch) | |
| tree | 9499cf6d0da0c8aba6094fc1bd22d17817698798 | |
| parent | b86302283b48654682e0580c53ece01bf095fa95 (diff) | |
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.
| -rw-r--r-- | src/mesa/drivers/dri/r600/r700_assembler.c | 11 | ||||
| -rw-r--r-- | 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 d0eb9949a6..6ff08e1cfb 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 62a1ea1a22..3736bce11c 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; |