On 05/17/2017 08:03 PM, Marek Olšák wrote:
mesa_to_tgsi is for the old Mesa IR. The return type is always FLOAT.
Same for atifs_to_tgsi.

Ah okay, I will change this.


Marek

On Wed, May 17, 2017 at 7:06 PM, Samuel Pitoiset
<samuel.pitoi...@gmail.com> wrote:
RadeonSI needs to do a special lowering for Gather4 with integer
formats, but with bindless samplers we just can't access the index.

Instead, store the return type in the instruction like the target.

v2: - fix padding
     - initialize default value of ReturnType
     - replace debug_assert() by assert()

Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
  src/gallium/auxiliary/tgsi/tgsi_build.c    |  6 +++++-
  src/gallium/auxiliary/tgsi/tgsi_ureg.c     |  7 +++++--
  src/gallium/auxiliary/tgsi/tgsi_ureg.h     | 11 ++++++++---
  src/gallium/include/pipe/p_shader_tokens.h |  4 +++-
  src/mesa/state_tracker/st_atifs_to_tgsi.c  |  2 +-
  src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 17 ++---------------
  src/mesa/state_tracker/st_mesa_to_tgsi.c   | 21 +++++++++++++++++++++
  src/mesa/state_tracker/st_mesa_to_tgsi.h   |  4 ++++
  8 files changed, 49 insertions(+), 23 deletions(-)

diff --git a/src/gallium/auxiliary/tgsi/tgsi_build.c 
b/src/gallium/auxiliary/tgsi/tgsi_build.c
index 39c20b5e88..00843241f8 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_build.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_build.c
@@ -720,6 +720,7 @@ tgsi_default_instruction_texture( void )

     instruction_texture.Texture = TGSI_TEXTURE_UNKNOWN;
     instruction_texture.NumOffsets = 0;
+   instruction_texture.ReturnType = TGSI_RETURN_TYPE_UNKNOWN;
     instruction_texture.Padding = 0;

     return instruction_texture;
@@ -729,6 +730,7 @@ static struct tgsi_instruction_texture
  tgsi_build_instruction_texture(
     unsigned texture,
     unsigned num_offsets,
+   unsigned return_type,
     struct tgsi_token *prev_token,
     struct tgsi_instruction *instruction,
     struct tgsi_header *header )
@@ -737,6 +739,7 @@ tgsi_build_instruction_texture(

     instruction_texture.Texture = texture;
     instruction_texture.NumOffsets = num_offsets;
+   instruction_texture.ReturnType = return_type;
     instruction_texture.Padding = 0;
     instruction->Texture = 1;

@@ -1090,7 +1093,8 @@ tgsi_build_full_instruction(

        *instruction_texture = tgsi_build_instruction_texture(
           full_inst->Texture.Texture,
-        full_inst->Texture.NumOffsets,
+         full_inst->Texture.NumOffsets,
+         full_inst->Texture.ReturnType,
           prev_token,
           instruction,
           header   );
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.c 
b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
index 9eb00d0919..5bd779728a 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.c
@@ -1289,7 +1289,7 @@ ureg_fixup_label(struct ureg_program *ureg,
  void
  ureg_emit_texture(struct ureg_program *ureg,
                    unsigned extended_token,
-                  unsigned target, unsigned num_offsets)
+                  unsigned target, unsigned return_type, unsigned num_offsets)
  {
     union tgsi_any_token *out, *insn;

@@ -1301,6 +1301,7 @@ ureg_emit_texture(struct ureg_program *ureg,
     out[0].value = 0;
     out[0].insn_texture.Texture = target;
     out[0].insn_texture.NumOffsets = num_offsets;
+   out[0].insn_texture.ReturnType = return_type;
  }

  void
@@ -1386,6 +1387,7 @@ ureg_tex_insn(struct ureg_program *ureg,
                const struct ureg_dst *dst,
                unsigned nr_dst,
                unsigned target,
+              unsigned return_type,
                const struct tgsi_texture_offset *texoffsets,
                unsigned nr_offset,
                const struct ureg_src *src,
@@ -1407,7 +1409,8 @@ ureg_tex_insn(struct ureg_program *ureg,
                           nr_dst,
                           nr_src);

-   ureg_emit_texture( ureg, insn.extended_token, target, nr_offset );
+   ureg_emit_texture( ureg, insn.extended_token, target, return_type,
+                      nr_offset );

     for (i = 0; i < nr_offset; i++)
        ureg_emit_texture_offset( ureg, &texoffsets[i]);
diff --git a/src/gallium/auxiliary/tgsi/tgsi_ureg.h 
b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
index 6d2f5c0e99..54f95ba565 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_ureg.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_ureg.h
@@ -555,6 +555,7 @@ ureg_tex_insn(struct ureg_program *ureg,
                const struct ureg_dst *dst,
                unsigned nr_dst,
                unsigned target,
+              unsigned return_type,
                const struct tgsi_texture_offset *texoffsets,
                unsigned nr_offset,
                const struct ureg_src *src,
@@ -596,7 +597,7 @@ ureg_emit_label(struct ureg_program *ureg,
  void
  ureg_emit_texture(struct ureg_program *ureg,
                    unsigned insn_token,
-                  unsigned target, unsigned num_offsets);
+                  unsigned target, unsigned return_type, unsigned num_offsets);

  void
  ureg_emit_texture_offset(struct ureg_program *ureg,
@@ -748,6 +749,7 @@ static inline void ureg_##op( struct ureg_program *ureg,    
            \
                                struct ureg_src src1 )                    \
  {                                                                       \
     unsigned opcode = TGSI_OPCODE_##op;                                  \
+   unsigned return_type = TGSI_RETURN_TYPE_UNKNOWN;                     \
     struct ureg_emit_insn_result insn;                                   \
     if (ureg_dst_is_empty(dst))                                          \
        return;                                                           \
@@ -756,7 +758,8 @@ static inline void ureg_##op( struct ureg_program *ureg,    
            \
                           dst.Saturate,                                  \
                           1,                                             \
                           2);                                            \
-   ureg_emit_texture( ureg, insn.extended_token, target, 0 );          \
+   ureg_emit_texture( ureg, insn.extended_token, target,                \
+                      return_type, 0 );                                 \
     ureg_emit_dst( ureg, dst );                                          \
     ureg_emit_src( ureg, src0 );                                         \
     ureg_emit_src( ureg, src1 );                                         \
@@ -796,6 +799,7 @@ static inline void ureg_##op( struct ureg_program *ureg,    
            \
                                struct ureg_src src3 )                    \
  {                                                                       \
     unsigned opcode = TGSI_OPCODE_##op;                                  \
+   unsigned return_type = TGSI_RETURN_TYPE_UNKNOWN;                     \
     struct ureg_emit_insn_result insn;                                   \
     if (ureg_dst_is_empty(dst))                                          \
        return;                                                           \
@@ -804,7 +808,8 @@ static inline void ureg_##op( struct ureg_program *ureg,    
            \
                           dst.Saturate,                                  \
                           1,                                             \
                           4);                                            \
-   ureg_emit_texture( ureg, insn.extended_token, target, 0 );          \
+   ureg_emit_texture( ureg, insn.extended_token, target,                \
+                      return_type, 0 );                                 \
     ureg_emit_dst( ureg, dst );                                          \
     ureg_emit_src( ureg, src0 );                                         \
     ureg_emit_src( ureg, src1 );                                         \
diff --git a/src/gallium/include/pipe/p_shader_tokens.h 
b/src/gallium/include/pipe/p_shader_tokens.h
index a671121f10..cb49e3b033 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -233,6 +233,7 @@ enum tgsi_return_type {
     TGSI_RETURN_TYPE_SINT,
     TGSI_RETURN_TYPE_UINT,
     TGSI_RETURN_TYPE_FLOAT,
+   TGSI_RETURN_TYPE_UNKNOWN,
     TGSI_RETURN_TYPE_COUNT
  };

@@ -694,7 +695,8 @@ struct tgsi_instruction_texture
  {
     unsigned Texture  : 8;    /* TGSI_TEXTURE_ */
     unsigned NumOffsets : 4;
-   unsigned Padding : 20;
+   unsigned ReturnType : 3; /* TGSI_RETURN_TYPE_x */
+   unsigned Padding : 17;
  };

  /* for texture offsets in GLSL and DirectX.
diff --git a/src/mesa/state_tracker/st_atifs_to_tgsi.c 
b/src/mesa/state_tracker/st_atifs_to_tgsi.c
index 8b9c332feb..ff20511d95 100644
--- a/src/mesa/state_tracker/st_atifs_to_tgsi.c
+++ b/src/mesa/state_tracker/st_atifs_to_tgsi.c
@@ -334,7 +334,7 @@ compile_setupinst(struct st_translate *t,
        src[1] = t->samplers[r];
        /* the texture target is still unknown, it will be fixed in the draw 
call */
        ureg_tex_insn(t->ureg, TGSI_OPCODE_TEX, dst, 1, TGSI_TEXTURE_2D,
-                    NULL, 0, src, 2);
+                    TGSI_RETURN_TYPE_UNKNOWN, NULL, 0, src, 2);
     } else if (texinst->Opcode == ATI_FRAGMENT_SHADER_PASS_OP) {
        ureg_insn(t->ureg, TGSI_OPCODE_MOV, dst, 1, src, 1);
     }
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp 
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 54bc70f57b..9620ef760f 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5877,6 +5877,7 @@ compile_tgsi_instruction(struct st_translate *t,
                      inst->op,
                      dst, num_dst,
                      tex_target,
+                    st_translate_texture_type(inst->tex_type),
                      texoffsets, inst->tex_offset_num_offset,
                      src, num_src);
        return;
@@ -6570,24 +6571,10 @@ st_translate_program(
     /* texture samplers */
     for (i = 0; i < frag_const->MaxTextureImageUnits; i++) {
        if (program->samplers_used & (1u << i)) {
-         unsigned type;
+         unsigned type = st_translate_texture_type(program->sampler_types[i]);

           t->samplers[i] = ureg_DECL_sampler(ureg, i);

-         switch (program->sampler_types[i]) {
-         case GLSL_TYPE_INT:
-            type = TGSI_RETURN_TYPE_SINT;
-            break;
-         case GLSL_TYPE_UINT:
-            type = TGSI_RETURN_TYPE_UINT;
-            break;
-         case GLSL_TYPE_FLOAT:
-            type = TGSI_RETURN_TYPE_FLOAT;
-            break;
-         default:
-            unreachable("not reached");
-         }
-
           ureg_DECL_sampler_view( ureg, i, program->sampler_targets[i],
                                   type, type, type, type );
        }
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c 
b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index b3721d8703..77cf2b6292 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -223,6 +223,26 @@ st_translate_texture_target(GLuint textarget, GLboolean 
shadow)


  /**
+ * Map GLSL base type to TGSI return type.
+ */
+unsigned
+st_translate_texture_type(enum glsl_base_type type)
+{
+       switch (type) {
+       case GLSL_TYPE_INT:
+               return TGSI_RETURN_TYPE_SINT;
+       case GLSL_TYPE_UINT:
+               return TGSI_RETURN_TYPE_UINT;
+       case GLSL_TYPE_FLOAT:
+               return TGSI_RETURN_TYPE_FLOAT;
+       default:
+               assert(!"unexpected texture type");
+               return TGSI_RETURN_TYPE_UNKNOWN;
+       }
+}
+
+
+/**
   * Translate a (1 << TEXTURE_x_INDEX) bit into a TGSI_TEXTURE_x enum.
   */
  static unsigned
@@ -536,6 +556,7 @@ compile_instruction(
                       dst, num_dst,
                       st_translate_texture_target( inst->TexSrcTarget,
                                                 inst->TexShadow ),
+                     TGSI_RETURN_TYPE_UNKNOWN,
                       NULL, 0,
                       src, num_src );
        return;
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.h 
b/src/mesa/state_tracker/st_mesa_to_tgsi.h
index b4d9af635a..106cf85a3e 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.h
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.h
@@ -34,6 +34,8 @@
  #include "pipe/p_compiler.h"
  #include "pipe/p_defines.h"

+#include "compiler/glsl_types.h"
+
  #if defined __cplusplus
  extern "C" {
  #endif
@@ -63,6 +65,8 @@ st_translate_mesa_program(
  unsigned
  st_translate_texture_target(GLuint textarget, GLboolean shadow);

+unsigned
+st_translate_texture_type(enum glsl_base_type type);

  #if defined __cplusplus
  } /* extern "C" */
--
2.13.0

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