diff options
Diffstat (limited to 'src/mesa/main/nvvertexec.c')
| -rw-r--r-- | src/mesa/main/nvvertexec.c | 104 |
1 files changed, 98 insertions, 6 deletions
diff --git a/src/mesa/main/nvvertexec.c b/src/mesa/main/nvvertexec.c index 94507aba880..bacbea8343c 100644 --- a/src/mesa/main/nvvertexec.c +++ b/src/mesa/main/nvvertexec.c @@ -38,6 +38,9 @@ #include "math/m_matrix.h" +static const GLfloat zeroVec[4] = { 0, 0, 0, 0 }; + + /** * Load/initialize the vertex program registers. * This needs to be done per vertex. @@ -225,13 +228,12 @@ fetch_vector4( const struct vp_src_register *source, const struct vp_machine *machine, GLfloat result[4] ) { - static const GLfloat zero[4] = { 0, 0, 0, 0 }; const GLfloat *src; if (source->RelAddr) { const GLint reg = source->Register + machine->AddressReg; if (reg < 0 || reg > MAX_NV_VERTEX_PROGRAM_PARAMS) - src = zero; + src = zeroVec; else src = machine->Registers[VP_PROG_REG_START + reg]; } @@ -262,13 +264,12 @@ fetch_vector1( const struct vp_src_register *source, const struct vp_machine *machine, GLfloat result[4] ) { - static const GLfloat zero[4] = { 0, 0, 0, 0 }; const GLfloat *src; if (source->RelAddr) { const GLint reg = source->Register + machine->AddressReg; if (reg < 0 || reg > MAX_NV_VERTEX_PROGRAM_PARAMS) - src = zero; + src = zeroVec; else src = machine->Registers[VP_PROG_REG_START + reg]; } @@ -606,7 +607,7 @@ _mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program) store_vector4( &inst->DstReg, machine, t ); } break; - case VP_OPCODE_SUB: + case VP_OPCODE_SUB: /* GL_NV_vertex_program1_1 */ { GLfloat t[4], u[4], sum[4]; fetch_vector4( &inst->SrcReg[0], machine, t ); @@ -618,7 +619,7 @@ _mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program) store_vector4( &inst->DstReg, machine, sum ); } break; - case VP_OPCODE_ABS: + case VP_OPCODE_ABS: /* GL_NV_vertex_program1_1 */ { GLfloat t[4]; fetch_vector4( &inst->SrcReg[0], machine, t ); @@ -629,6 +630,97 @@ _mesa_exec_vertex_program(GLcontext *ctx, const struct vertex_program *program) store_vector4( &inst->DstReg, machine, t ); } break; + case VP_OPCODE_FLR: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], machine, t ); + t[0] = FLOORF(t[0]); + t[1] = FLOORF(t[1]); + t[2] = FLOORF(t[2]); + t[3] = FLOORF(t[3]); + store_vector4( &inst->DstReg, machine, t ); + } + break; + case VP_OPCODE_FRC: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector4( &inst->SrcReg[0], machine, t ); + t[0] = t[0] - FLOORF(t[0]); + t[1] = t[1] - FLOORF(t[1]); + t[2] = t[2] - FLOORF(t[2]); + t[3] = t[3] - FLOORF(t[3]); + store_vector4( &inst->DstReg, machine, t ); + } + break; + case VP_OPCODE_EX2: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], machine, t ); + t[0] = t[1] = t[2] = t[3] = _mesa_pow(2.0, t[0]); + store_vector4( &inst->DstReg, machine, t ); + } + break; + case VP_OPCODE_LG2: /* GL_ARB_vertex_program */ + { + GLfloat t[4]; + fetch_vector1( &inst->SrcReg[0], machine, t ); + t[0] = t[1] = t[2] = t[3] = LOG2(t[0]); + store_vector4( &inst->DstReg, machine, t ); + } + break; + case VP_OPCODE_POW: /* GL_ARB_vertex_program */ + { + GLfloat t[4], u[4]; + fetch_vector1( &inst->SrcReg[0], machine, t ); + fetch_vector1( &inst->SrcReg[1], machine, u ); + t[0] = t[1] = t[2] = t[3] = _mesa_pow(t[0], u[0]); + store_vector4( &inst->DstReg, machine, t ); + } + break; + case VP_OPCODE_XPD: /* GL_ARB_vertex_program */ + { + GLfloat t[4], u[4], cross[4]; + fetch_vector4( &inst->SrcReg[0], machine, t ); + fetch_vector4( &inst->SrcReg[1], machine, u ); + cross[0] = t[1] * u[2] - t[2] * u[1]; + cross[1] = t[2] * u[0] - t[0] * u[2]; + cross[2] = t[0] * u[1] - t[1] * u[0]; + store_vector4( &inst->DstReg, machine, cross ); + } + break; + case VP_OPCODE_SWZ: /* GL_ARB_vertex_program */ + { + const struct vp_src_register *source = &inst->SrcReg[0]; + const GLfloat *src; + GLfloat result[4]; + GLuint i; + + /* Code similar to fetch_vector4() */ + if (source->RelAddr) { + const GLint reg = source->Register + machine->AddressReg; + if (reg < 0 || reg > MAX_NV_VERTEX_PROGRAM_PARAMS) + src = zeroVec; + else + src = machine->Registers[VP_PROG_REG_START + reg]; + } + else { + src = machine->Registers[source->Register]; + } + + /* extended swizzling here */ + for (i = 0; i < 3; i++) { + if (source->Swizzle[i] == SWIZZLE_ZERO) + result[i] = 0.0; + else if (source->Swizzle[i] == SWIZZLE_ONE) + result[i] = -1.0; + else + result[i] = -src[source->Swizzle[i]]; + if (source->Negate) + result[i] = -result[i]; + } + store_vector4( &inst->DstReg, machine, result ); + } + break; case VP_OPCODE_END: return; |