diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_vertprog.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_vertprog.c | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_vertprog.c b/src/mesa/drivers/dri/r300/r300_vertprog.c index 129004fee7..a1fe378029 100644 --- a/src/mesa/drivers/dri/r300/r300_vertprog.c +++ b/src/mesa/drivers/dri/r300/r300_vertprog.c @@ -263,15 +263,25 @@ static struct r300_vertex_program *build_program(GLcontext *ctx, rc_move_output(&compiler.Base, VERT_RESULT_PSIZ, VERT_RESULT_PSIZ, WRITEMASK_X); if (vp->key.WPosAttr != FRAG_ATTRIB_MAX) { - rc_copy_output(&compiler.Base, - VERT_RESULT_HPOS, - vp->key.WPosAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0); + unsigned int vp_wpos_attr = vp->key.WPosAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0; + + /* Set empty writemask for instructions writing to vp_wpos_attr + * before moving the wpos attr there. + * Such instructions will be removed by DCE. + */ + rc_move_output(&compiler.Base, vp_wpos_attr, vp->key.WPosAttr, 0); + rc_copy_output(&compiler.Base, VERT_RESULT_HPOS, vp_wpos_attr); } if (vp->key.FogAttr != FRAG_ATTRIB_MAX) { - rc_move_output(&compiler.Base, - VERT_RESULT_FOGC, - vp->key.FogAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0, WRITEMASK_X); + unsigned int vp_fog_attr = vp->key.FogAttr - FRAG_ATTRIB_TEX0 + VERT_RESULT_TEX0; + + /* Set empty writemask for instructions writing to vp_fog_attr + * before moving the fog attr there. + * Such instructions will be removed by DCE. + */ + rc_move_output(&compiler.Base, vp_fog_attr, vp->key.FogAttr, 0); + rc_move_output(&compiler.Base, VERT_RESULT_FOGC, vp_fog_attr, WRITEMASK_X); } r3xx_compile_vertex_program(&compiler); @@ -382,7 +392,11 @@ void r300SetupVertexProgram(r300ContextPtr rmesa) R300_STATECHANGE(rmesa, vap_cntl); R300_STATECHANGE(rmesa, vpp); param_count = r300VertexProgUpdateParams(ctx, prog, (float *)&rmesa->hw.vpp.cmd[R300_VPP_PARAM_0]); - bump_vpu_count(rmesa->hw.vpp.cmd, param_count); + if (!rmesa->radeon.radeonScreen->kernel_mm && param_count > 255 * 4) { + WARN_ONCE("Too many VP params, expect rendering errors\n"); + } + /* Prevent the overflow (vpu.count is u8) */ + bump_vpu_count(rmesa->hw.vpp.cmd, MIN2(255 * 4, param_count)); param_count /= 4; r300EmitVertexProgram(rmesa, R300_PVS_CODE_START, &(prog->code)); @@ -395,6 +409,6 @@ void r300SetupVertexProgram(r300ContextPtr rmesa) rmesa->hw.pvs.cmd[R300_PVS_CNTL_1] = (0 << R300_PVS_FIRST_INST_SHIFT) | (inst_count << R300_PVS_XYZW_VALID_INST_SHIFT) | (inst_count << R300_PVS_LAST_INST_SHIFT); - rmesa->hw.pvs.cmd[R300_PVS_CNTL_2] = (0 << R300_PVS_CONST_BASE_OFFSET_SHIFT) | (param_count << R300_PVS_MAX_CONST_ADDR_SHIFT); + rmesa->hw.pvs.cmd[R300_PVS_CNTL_2] = (0 << R300_PVS_CONST_BASE_OFFSET_SHIFT) | ((param_count - 1) << R300_PVS_MAX_CONST_ADDR_SHIFT); rmesa->hw.pvs.cmd[R300_PVS_CNTL_3] = (inst_count << R300_PVS_LAST_VTX_SRC_INST_SHIFT); } |