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libs/vkd3d: Add VKD3D_SHADER_DUMP_PATH environment variable for dumping shaders.

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A similar functionality was helpful numerous number of times when
developing libvkd3d-shader.
This commit is contained in:
Józef Kucia 2017-10-24 15:22:01 +02:00
parent f270e36c78
commit 2b21fbf6b8
1 changed files with 67 additions and 0 deletions
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67
libs/vkd3d/state.c
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@ -19,6 +19,8 @@
#include "vkd3d_private.h"
#include <stdio.h>
/* ID3D12RootSignature */
static inline struct d3d12_root_signature *impl_from_ID3D12RootSignature(ID3D12RootSignature *iface)
{
@ -1190,6 +1192,70 @@ struct d3d12_pipeline_state *unsafe_impl_from_ID3D12PipelineState(ID3D12Pipeline
return impl_from_ID3D12PipelineState(iface);
}
static void dump_shader(const char *path, const char *prefix, const void *data, size_t size)
{
static unsigned int shader_id = 0;
char filename[1024];
FILE *f;
snprintf(filename, ARRAY_SIZE(filename), "%s/vkd3d-shader-%s-%u.dxbc", path, prefix, shader_id);
if (!(f = fopen(filename, "wb")))
{
ERR("Failed to open %s for dumping shader.\n", filename);
return;
}
if (fwrite(data, 1, size, f) != size)
ERR("Failed to write shader to %s.\n", filename);
if (fclose(f))
ERR("Failed to close stream %s.\n", filename);
++shader_id;
}
static void dump_shader_stage(VkShaderStageFlagBits stage, const void *data, size_t size)
{
static bool enabled = true;
const char *prefix;
const char *path;
if (!enabled)
return;
if (!(path = getenv("VKD3D_SHADER_DUMP_PATH")))
{
enabled = false;
return;
}
switch (stage)
{
case VK_SHADER_STAGE_VERTEX_BIT:
prefix = "vs";
break;
case VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT:
prefix = "hs";
break;
case VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT:
prefix = "ds";
break;
case VK_SHADER_STAGE_GEOMETRY_BIT:
prefix = "gs";
break;
case VK_SHADER_STAGE_FRAGMENT_BIT:
prefix = "ps";
break;
case VK_SHADER_STAGE_COMPUTE_BIT:
prefix = "cs";
break;
default:
prefix = "unk";
break;
}
dump_shader(path, prefix, data, size);
}
static HRESULT create_shader_stage(struct d3d12_device *device,
struct VkPipelineShaderStageCreateInfo *stage_desc, enum VkShaderStageFlagBits stage,
const D3D12_SHADER_BYTECODE *code, const struct vkd3d_shader_interface *shader_interface)
@ -1212,6 +1278,7 @@ static HRESULT create_shader_stage(struct d3d12_device *device,
shader_desc.pNext = NULL;
shader_desc.flags = 0;
dump_shader_stage(stage, code->pShaderBytecode, code->BytecodeLength);
if (FAILED(hr = vkd3d_shader_compile_dxbc(&dxbc, &spirv, 0, shader_interface)))
{
WARN("Failed to compile shader, hr %#x.\n", hr);