Module: Mesa Branch: master Commit: 199eea4a4be342c255c1e5e22a39b79d316d52a4 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=199eea4a4be342c255c1e5e22a39b79d316d52a4
Author: Dave Airlie <[email protected]> Date: Fri Jan 11 13:30:30 2013 +1000 r600: always export a position from vertex shader This fixes piglit glsl-1.40-tf-no-position from gpu hanging on my rv635 at least. Signed-off-by: Dave Airlie <[email protected]> --- src/gallium/drivers/r600/r600_shader.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index db45dfd..ab0b5e2 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -1751,6 +1751,23 @@ static int r600_shader_from_tgsi(struct r600_screen *rscreen, } } + /* add fake position export */ + if (ctx.type == TGSI_PROCESSOR_VERTEX && next_pos_base == 60) { + memset(&output[j], 0, sizeof(struct r600_bytecode_output)); + output[j].gpr = 0; + output[j].elem_size = 3; + output[j].swizzle_x = 7; + output[j].swizzle_y = 7; + output[j].swizzle_z = 7; + output[j].swizzle_w = 7; + output[j].burst_count = 1; + output[j].barrier = 1; + output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_POS; + output[j].array_base = next_pos_base; + output[j].inst = BC_INST(ctx.bc, V_SQ_CF_ALLOC_EXPORT_WORD1_SQ_CF_INST_EXPORT); + j++; + } + /* add fake param output for vertex shader if no param is exported */ if (ctx.type == TGSI_PROCESSOR_VERTEX && next_param_base == 0) { memset(&output[j], 0, sizeof(struct r600_bytecode_output)); _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
