From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Thu, 13 Apr 2017 22:04:05 +0000 (+0200)
Subject: tgsi/scan: record bindless samplers/images usage
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6447abf3736fef95b7135580ce2e9bbea3eb5f96;p=mesa.git

tgsi/scan: record bindless samplers/images usage

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---

diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index 018ca4b5bd4..6e51972e5d5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -352,6 +352,7 @@ scan_instruction(struct tgsi_shader_info *info,
    unsigned i;
    bool is_mem_inst = false;
    bool is_interp_instruction = false;
+   unsigned sampler_src;
 
    assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
    info->opcode_count[fullinst->Instruction.Opcode]++;
@@ -367,6 +368,44 @@ scan_instruction(struct tgsi_shader_info *info,
    case TGSI_OPCODE_ENDLOOP:
       (*current_depth)--;
       break;
+   case TGSI_OPCODE_TEX:
+   case TGSI_OPCODE_TEX_LZ:
+   case TGSI_OPCODE_TXB:
+   case TGSI_OPCODE_TXD:
+   case TGSI_OPCODE_TXL:
+   case TGSI_OPCODE_TXP:
+   case TGSI_OPCODE_TXQ:
+   case TGSI_OPCODE_TXQS:
+   case TGSI_OPCODE_TXF:
+   case TGSI_OPCODE_TXF_LZ:
+   case TGSI_OPCODE_TEX2:
+   case TGSI_OPCODE_TXB2:
+   case TGSI_OPCODE_TXL2:
+   case TGSI_OPCODE_TG4:
+   case TGSI_OPCODE_LODQ:
+      sampler_src = fullinst->Instruction.NumSrcRegs - 1;
+      if (fullinst->Src[sampler_src].Register.File != TGSI_FILE_SAMPLER)
+         info->uses_bindless_samplers = true;
+      break;
+   case TGSI_OPCODE_RESQ:
+   case TGSI_OPCODE_LOAD:
+   case TGSI_OPCODE_ATOMUADD:
+   case TGSI_OPCODE_ATOMXCHG:
+   case TGSI_OPCODE_ATOMCAS:
+   case TGSI_OPCODE_ATOMAND:
+   case TGSI_OPCODE_ATOMOR:
+   case TGSI_OPCODE_ATOMXOR:
+   case TGSI_OPCODE_ATOMUMIN:
+   case TGSI_OPCODE_ATOMUMAX:
+   case TGSI_OPCODE_ATOMIMIN:
+   case TGSI_OPCODE_ATOMIMAX:
+      if (tgsi_is_bindless_image_file(fullinst->Src[0].Register.File))
+         info->uses_bindless_images = true;
+      break;
+   case TGSI_OPCODE_STORE:
+      if (tgsi_is_bindless_image_file(fullinst->Dst[0].Register.File))
+         info->uses_bindless_images = true;
+      break;
    default:
       break;
    }
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index af1651b7e82..cfec9daede5 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -135,6 +135,8 @@ struct tgsi_shader_info
    boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
    boolean uses_doubles; /**< uses any of the double instructions */
    boolean uses_derivatives;
+   boolean uses_bindless_samplers;
+   boolean uses_bindless_images;
    unsigned clipdist_writemask;
    unsigned culldist_writemask;
    unsigned num_written_culldistance;
@@ -196,6 +198,14 @@ tgsi_scan_arrays(const struct tgsi_token *tokens,
                  unsigned max_array_id,
                  struct tgsi_array_info *arrays);
 
+inline bool
+tgsi_is_bindless_image_file(unsigned file)
+{
+   return file != TGSI_FILE_IMAGE &&
+          file != TGSI_FILE_MEMORY &&
+          file != TGSI_FILE_BUFFER;
+}
+
 #ifdef __cplusplus
 } // extern "C"
 #endif