X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fdrivers%2Fr300%2Fr300_tgsi_to_rc.c;h=21a1c45982d3b09d7ca54c24ca0d19dfc6d71ed5;hb=3da70606b3af1e907d56666d199957b6da0c73fe;hp=a792c2cf9890c77a14be9d05a43ed07f31632517;hpb=fd70841121475d7aad98812d6bf9c9c67567b89a;p=mesa.git

diff --git a/src/gallium/drivers/r300/r300_tgsi_to_rc.c b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
index a792c2cf989..21a1c45982d 100644
--- a/src/gallium/drivers/r300/r300_tgsi_to_rc.c
+++ b/src/gallium/drivers/r300/r300_tgsi_to_rc.c
@@ -25,11 +25,11 @@
 #include "radeon_compiler.h"
 #include "radeon_program.h"
 
+#include "tgsi/tgsi_info.h"
 #include "tgsi/tgsi_parse.h"
 #include "tgsi/tgsi_scan.h"
 #include "tgsi/tgsi_util.h"
 
-
 static unsigned translate_opcode(unsigned opcode)
 {
     switch(opcode) {
@@ -144,7 +144,7 @@ static unsigned translate_opcode(unsigned opcode)
         case TGSI_OPCODE_KIL: return RC_OPCODE_KIL;
     }
 
-    fprintf(stderr, "Unknown opcode: %i\n", opcode);
+    fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode));
     return RC_OPCODE_ILLEGAL_OPCODE;
 }
 
@@ -201,6 +201,8 @@ static void transform_srcreg(
     struct rc_src_register * dst,
     struct tgsi_full_src_register * src)
 {
+    unsigned i, j;
+
     dst->File = translate_register_file(src->Register.File);
     dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
     dst->RelAddr = src->Register.Indirect;
@@ -210,6 +212,21 @@ static void transform_srcreg(
     dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9;
     dst->Abs = src->Register.Absolute;
     dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0;
+
+    if (src->Register.File == TGSI_FILE_IMMEDIATE) {
+        for (i = 0; i < ttr->imms_to_swizzle_count; i++) {
+            if (ttr->imms_to_swizzle[i].index == src->Register.Index) {
+                dst->File = RC_FILE_TEMPORARY;
+                dst->Index = 0;
+                dst->Swizzle = 0;
+                for (j = 0; j < 4; j++) {
+                    dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle,
+                        tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3);
+                }
+                break;
+            }
+        }
+    }
 }
 
 static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src,
@@ -254,9 +271,6 @@ static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_inst
     struct rc_instruction * dst;
     int i;
 
-    if (src->Instruction.Opcode == TGSI_OPCODE_END)
-        return;
-
     dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
     dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode);
     dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate);
@@ -277,21 +291,47 @@ static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_inst
                           &ttr->compiler->Program.ShadowSamplers);
 }
 
-static void handle_immediate(struct tgsi_to_rc * ttr, struct tgsi_full_immediate * imm)
+static void handle_immediate(struct tgsi_to_rc * ttr,
+                             struct tgsi_full_immediate * imm,
+                             unsigned index)
 {
     struct rc_constant constant;
-    int i;
+    unsigned swizzle = 0;
+    boolean can_swizzle = TRUE;
+    unsigned i;
 
-    constant.Type = RC_CONSTANT_IMMEDIATE;
-    constant.Size = 4;
-    for(i = 0; i < 4; ++i)
-        constant.u.Immediate[i] = imm->u[i].Float;
-    rc_constants_add(&ttr->compiler->Program.Constants, &constant);
+    for (i = 0; i < 4; i++) {
+        if (imm->u[i].Float == 0.0f) {
+            swizzle |= RC_SWIZZLE_ZERO << (i * 3);
+        } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) {
+            swizzle |= RC_SWIZZLE_HALF << (i * 3);
+        } else if (imm->u[i].Float == 1.0f) {
+            swizzle |= RC_SWIZZLE_ONE << (i * 3);
+        } else {
+            can_swizzle = FALSE;
+            break;
+        }
+    }
+
+    if (can_swizzle) {
+        ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index;
+        ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle;
+        ttr->imms_to_swizzle_count++;
+    } else {
+        constant.Type = RC_CONSTANT_IMMEDIATE;
+        constant.Size = 4;
+        for(i = 0; i < 4; ++i)
+            constant.u.Immediate[i] = imm->u[i].Float;
+        rc_constants_add(&ttr->compiler->Program.Constants, &constant);
+    }
 }
 
-void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
+void r300_tgsi_to_rc(struct tgsi_to_rc * ttr,
+                     const struct tgsi_token * tokens)
 {
+    struct tgsi_full_instruction *inst;
     struct tgsi_parse_context parser;
+    unsigned imm_index = 0;
     int i;
 
     /* Allocate constants placeholders.
@@ -308,6 +348,9 @@ void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
 
     ttr->immediate_offset = ttr->compiler->Program.Constants.Count;
 
+    ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms));
+    ttr->imms_to_swizzle_count = 0;
+
     tgsi_parse_init(&parser, tokens);
 
     while (!tgsi_parse_end_of_tokens(&parser)) {
@@ -317,16 +360,26 @@ void r300_tgsi_to_rc(struct tgsi_to_rc * ttr, const struct tgsi_token * tokens)
             case TGSI_TOKEN_TYPE_DECLARATION:
                 break;
             case TGSI_TOKEN_TYPE_IMMEDIATE:
-                handle_immediate(ttr, &parser.FullToken.FullImmediate);
+                handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index);
+                imm_index++;
                 break;
             case TGSI_TOKEN_TYPE_INSTRUCTION:
-                transform_instruction(ttr, &parser.FullToken.FullInstruction);
+                inst = &parser.FullToken.FullInstruction;
+                /* This hack with the RET opcode woudn't work with
+                 * conditionals. */
+                if (inst->Instruction.Opcode == TGSI_OPCODE_END ||
+                    inst->Instruction.Opcode == TGSI_OPCODE_RET) {
+                    break;
+                }
+
+                transform_instruction(ttr, inst);
                 break;
         }
     }
 
     tgsi_parse_free(&parser);
 
+    free(ttr->imms_to_swizzle);
+
     rc_calculate_inputs_outputs(ttr->compiler);
 }
-