Zebediah Figura : vkd3d-shader/hlsl: Write SM4 texture declarations.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: e7e46be3714d11bd3337b35ecba8ba08ca9a3bd1
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=e7e46be3714d11bd3337b35ecba8ba08ca9a3bd1

Author: Zebediah Figura <zfigura at codeweavers.com>
Date:   Mon Oct 11 21:58:49 2021 -0500

vkd3d-shader/hlsl: Write SM4 texture declarations.

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 libs/vkd3d-shader/hlsl_sm4.c | 45 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index 9b21222..c979e14 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -704,6 +704,24 @@ static void write_sm4_rdef(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc)
     dxbc_writer_add_section(dxbc, TAG_RDEF, buffer.data, buffer.size);
 }
 
+static enum vkd3d_sm4_resource_type sm4_resource_dimension(const struct hlsl_type *type)
+{
+    switch (type->sampler_dim)
+    {
+        case HLSL_SAMPLER_DIM_1D:
+            return VKD3D_SM4_RESOURCE_TEXTURE_1D;
+        case HLSL_SAMPLER_DIM_2D:
+            return VKD3D_SM4_RESOURCE_TEXTURE_2D;
+        case HLSL_SAMPLER_DIM_3D:
+            return VKD3D_SM4_RESOURCE_TEXTURE_3D;
+        case HLSL_SAMPLER_DIM_CUBE:
+            return VKD3D_SM4_RESOURCE_TEXTURE_CUBE;
+        default:
+            assert(0);
+            return 0;
+    }
+}
+
 struct sm4_register
 {
     enum vkd3d_sm4_register_type type;
@@ -941,6 +959,24 @@ static void write_sm4_dcl_constant_buffer(struct vkd3d_bytecode_buffer *buffer,
     write_sm4_instruction(buffer, &instr);
 }
 
+static void write_sm4_dcl_texture(struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_var *var)
+{
+    const struct sm4_instruction instr =
+    {
+        .opcode = VKD3D_SM4_OP_DCL_RESOURCE
+                | (sm4_resource_dimension(var->data_type) << VKD3D_SM4_RESOURCE_TYPE_SHIFT),
+
+        .dsts[0].reg.type = VKD3D_SM4_RT_RESOURCE,
+        .dsts[0].reg.idx = {var->reg.id},
+        .dsts[0].reg.idx_count = 1,
+        .dst_count = 1,
+
+        .idx[0] = sm4_resource_format(var->data_type) * 0x1111,
+        .idx_count = 1,
+    };
+    write_sm4_instruction(buffer, &instr);
+}
+
 static void write_sm4_dcl_semantic(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer, const struct hlsl_ir_var *var)
 {
     const struct hlsl_profile_info *profile = ctx->profile;
@@ -1418,6 +1454,15 @@ static void write_sm4_shdr(struct hlsl_ctx *ctx,
             write_sm4_dcl_constant_buffer(&buffer, cbuffer);
     }
 
+    LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, const struct hlsl_ir_var, extern_entry)
+    {
+        if (!var->reg.allocated || var->data_type->type != HLSL_CLASS_OBJECT)
+            continue;
+
+        if (var->data_type->base_type == HLSL_TYPE_TEXTURE)
+            write_sm4_dcl_texture(&buffer, var);
+    }
+
     LIST_FOR_EACH_ENTRY(var, &ctx->extern_vars, struct hlsl_ir_var, extern_entry)
     {
         if ((var->is_input_semantic && var->last_read) || (var->is_output_semantic && var->first_write))