diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_vertprog.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_vertprog.c b/src/mesa/drivers/dri/r300/r300_vertprog.c index a0babeff92..49fcb6ff2c 100644 --- a/src/mesa/drivers/dri/r300/r300_vertprog.c +++ b/src/mesa/drivers/dri/r300/r300_vertprog.c @@ -72,6 +72,33 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. u_temp_i=VSF_MAX_FRAGMENT_TEMPS-1; \ } while (0) +static GLuint combineSwizzles(GLuint src, GLuint swz_x, GLuint swz_y, GLuint swz_z, GLuint swz_w) +{ + GLuint ret = 0; + + if (swz_x == SWIZZLE_ZERO || swz_x == SWIZZLE_ONE) + ret |= swz_x; + else + ret |= GET_SWZ(src, swz_x); + + if (swz_y == SWIZZLE_ZERO || swz_y == SWIZZLE_ONE) + ret |= swz_y << 3; + else + ret |= GET_SWZ(src, swz_y) << 3; + + if (swz_z == SWIZZLE_ZERO || swz_z == SWIZZLE_ONE) + ret |= swz_z << 6; + else + ret |= GET_SWZ(src, swz_z) << 6; + + if (swz_w == SWIZZLE_ZERO || swz_w == SWIZZLE_ONE) + ret |= swz_w << 9; + else + ret |= GET_SWZ(src, swz_w) << 9; + + return ret; +} + int r300VertexProgUpdateParams(GLcontext * ctx, struct r300_vertex_program_cont *vp, float *dst) { @@ -1248,6 +1275,179 @@ static void pos_as_texcoord(struct r300_vertex_program *vp, insert_wpos(vp, prog, tempregi); } +static int translateABS(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + + inst = &prog->Instructions[pos]; + + inst->Opcode = OPCODE_MAX; + inst->SrcReg[1] = inst->SrcReg[0]; + inst->SrcReg[1].Negate ^= NEGATE_XYZW; + + return 0; +} + +static int translateDP3(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + + inst = &prog->Instructions[pos]; + + inst->Opcode = OPCODE_DP4; + inst->SrcReg[0].Swizzle = combineSwizzles(inst->SrcReg[0].Swizzle, SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ZERO); + + return 0; +} + +static int translateDPH(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + + inst = &prog->Instructions[pos]; + + inst->Opcode = OPCODE_DP4; + inst->SrcReg[0].Swizzle = combineSwizzles(inst->SrcReg[0].Swizzle, SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_ONE); + + return 0; +} + +static int translateFLR(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + struct prog_dst_register dst; + int tmp_idx; + + tmp_idx = prog->NumTemporaries++; + + _mesa_insert_instructions(prog, pos + 1, 1); + + inst = &prog->Instructions[pos]; + dst = inst->DstReg; + + inst->Opcode = OPCODE_FRC; + inst->DstReg.File = PROGRAM_TEMPORARY; + inst->DstReg.Index = tmp_idx; + ++inst; + + inst->Opcode = OPCODE_ADD; + inst->DstReg = dst; + inst->SrcReg[0] = (inst-1)->SrcReg[0]; + inst->SrcReg[1].File = PROGRAM_TEMPORARY; + inst->SrcReg[1].Index = tmp_idx; + inst->SrcReg[1].Negate = NEGATE_XYZW; + + return 1; +} + +static int translateSUB(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + + inst = &prog->Instructions[pos]; + + inst->Opcode = OPCODE_ADD; + inst->SrcReg[1].Negate ^= NEGATE_XYZW; + + return 0; +} + +static int translateSWZ(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + GLuint orig_negate, orig_writemask; + + inst = &prog->Instructions[pos]; + orig_negate = inst->SrcReg[0].Negate; + orig_writemask = inst->DstReg.WriteMask; + + inst->Opcode = OPCODE_MOV; + + /* If all relevant components are either negated or not negated at the same time, we are ok. + */ + if ((orig_negate & orig_writemask) == 0 || (orig_negate & orig_writemask) == (NEGATE_XYZW & orig_writemask)) + return 0; + + _mesa_insert_instructions(prog, pos + 1, 1); + + inst = &prog->Instructions[pos]; + inst->DstReg.WriteMask = orig_writemask & (orig_negate ^ NEGATE_XYZW); + inst->SrcReg[0].Negate = NEGATE_NONE; + ++inst; + + *inst = *(inst-1); + inst->DstReg.WriteMask = orig_writemask & orig_negate; + inst->SrcReg[0].Negate = NEGATE_XYZW; + + return 1; +} + +static int translateXPD(struct gl_program *prog, int pos) +{ + struct prog_instruction *inst; + int tmp_idx; + + tmp_idx = prog->NumTemporaries++; + + _mesa_insert_instructions(prog, pos + 1, 1); + + inst = &prog->Instructions[pos]; + + *(inst+1) = *inst; + + inst->Opcode = OPCODE_MUL; + inst->DstReg.File = PROGRAM_TEMPORARY; + inst->DstReg.Index = tmp_idx; + inst->SrcReg[0].Swizzle = combineSwizzles(inst->SrcReg[0].Swizzle, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_X, SWIZZLE_W); + inst->SrcReg[1].Swizzle = combineSwizzles(inst->SrcReg[1].Swizzle, SWIZZLE_Z, SWIZZLE_X, SWIZZLE_Y, SWIZZLE_W); + ++inst; + + inst->Opcode = OPCODE_MAD; + inst->SrcReg[0].Swizzle = combineSwizzles(inst->SrcReg[0].Swizzle, SWIZZLE_Z, SWIZZLE_X, SWIZZLE_Y, SWIZZLE_W); + inst->SrcReg[1].Swizzle = combineSwizzles(inst->SrcReg[1].Swizzle, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_X, SWIZZLE_W); + inst->SrcReg[1].Negate ^= NEGATE_XYZW; + inst->SrcReg[2].File = PROGRAM_TEMPORARY; + inst->SrcReg[2].Index = tmp_idx; + + return 1; +} + +static void translateInsts(struct gl_program *prog) +{ + struct prog_instruction *inst; + int i; + + for (i = 0; i < prog->NumInstructions; ++i) { + inst = &prog->Instructions[i]; + + switch (inst->Opcode) { + case OPCODE_ABS: + i += translateABS(prog, i); + break; + case OPCODE_DP3: + i += translateDP3(prog, i); + break; + case OPCODE_DPH: + i += translateDPH(prog, i); + break; + case OPCODE_FLR: + i += translateFLR(prog, i); + break; + case OPCODE_SUB: + i += translateSUB(prog, i); + break; + case OPCODE_SWZ: + i += translateSWZ(prog, i); + break; + case OPCODE_XPD: + i += translateXPD(prog, i); + break; + default: + break; + } + } +} + static struct r300_vertex_program *build_program(GLcontext *ctx, struct r300_vertex_program_key *wanted_key, struct gl_vertex_program *mesa_vp, @@ -1310,6 +1510,8 @@ static struct r300_vertex_program *build_program(GLcontext *ctx, } } + translateInsts(&mesa_vp->Base); + if (RADEON_DEBUG & DEBUG_VERTS) { fprintf(stderr, "Vertex program after native rewrite:\n"); _mesa_print_program(&mesa_vp->Base); |