r300: translate non native insts earlier for easier debugging

diff --git a/src/mesa/drivers/dri/r300/r300_vertprog.c b/src/mesa/drivers/dri/r300/r300_vertprog.c
index a0babef..49fcb6f 100644 (file)
--- 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);