diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/tnl/t_vp_build.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c index 336f3c7a2a..63f7890205 100644 --- a/src/mesa/tnl/t_vp_build.c +++ b/src/mesa/tnl/t_vp_build.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.5 + * Version: 7.1 * - * Copyright (C) 2006 Tungsten Graphics All Rights Reserved. + * Copyright (C) 2007 Tungsten Graphics All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -457,9 +457,13 @@ static void register_matrix_param5( struct tnl_program *p, } +/** + * Convert a ureg source register to a prog_src_register. + */ static void emit_arg( struct prog_src_register *src, struct ureg reg ) { + assert(reg.file != PROGRAM_OUTPUT); src->File = reg.file; src->Index = reg.idx; src->Swizzle = reg.swz; @@ -469,9 +473,18 @@ static void emit_arg( struct prog_src_register *src, src->RelAddr = 0; } +/** + * Convert a ureg dest register to a prog_dst_register. + */ static void emit_dst( struct prog_dst_register *dst, struct ureg reg, GLuint mask ) { + /* Check for legal output register type. UNDEFINED will occur in + * instruction that don't produce a result (like END). + */ + assert(reg.file == PROGRAM_TEMPORARY || + reg.file == PROGRAM_OUTPUT || + reg.file == PROGRAM_UNDEFINED); dst->File = reg.file; dst->Index = reg.idx; /* allow zero as a shorthand for xyzw */ @@ -956,18 +969,19 @@ static void build_lighting( struct tnl_program *p ) STATE_POSITION); struct ureg V = get_eye_position(p); struct ureg dist = get_temp(p); + struct ureg tmpPpli = get_temp(p); VPpli = get_temp(p); half = get_temp(p); - /* In homogeneous object coordinates - */ - emit_op1(p, OPCODE_RCP, dist, 0, swizzle1(Ppli, W)); - emit_op2(p, OPCODE_MUL, Ppli, 0, Ppli, dist); + /* In homogeneous object coordinates + */ + emit_op1(p, OPCODE_RCP, dist, 0, swizzle1(Ppli, W)); + emit_op2(p, OPCODE_MUL, tmpPpli, 0, Ppli, dist); - /* Calulate VPpli vector + /* Calculate VPpli vector */ - emit_op2(p, OPCODE_SUB, VPpli, 0, Ppli, V); + emit_op2(p, OPCODE_SUB, VPpli, 0, tmpPpli, V); /* Normalize VPpli. The dist value also used in * attenuation below. @@ -999,6 +1013,7 @@ static void build_lighting( struct tnl_program *p ) emit_normalize_vec3(p, half, half); release_temp(p, dist); + release_temp(p, tmpPpli); } /* Calculate dot products: |