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add null D3D12 backend

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This commit is contained in:
Austin Eng
2017-06-05 17:08:55 -04:00
committed by Austin Eng
parent fbab31bada
commit fc2bac7e45
8 changed files with 556 additions and 6 deletions
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27
examples/Utils.cpp
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@@ -32,6 +32,7 @@
#endif
BackendBinding* CreateMetalBinding();
BackendBinding* CreateD3D12Binding();
namespace backend {
namespace opengl {
@@ -82,7 +83,6 @@ class NullBinding : public BackendBinding {
}
};
void PrintDeviceError(const char* message, nxt::CallbackUserdata) {
std::cout << "Device error: " << message << std::endl;
}
@@ -90,6 +90,7 @@ void PrintDeviceError(const char* message, nxt::CallbackUserdata) {
enum class BackendType {
OpenGL,
Metal,
D3D12,
Null,
};
@@ -99,7 +100,14 @@ enum class CmdBufType {
//TODO(cwallez@chromium.org) double terrible cmdbuf
};
#if defined(__APPLE__)
static BackendType backendType = BackendType::Metal;
#elif defined(_WIN32)
static BackendType backendType = BackendType::D3D12;
#else
static BackendType backendType = BackendType::OpenGL;
#endif
static CmdBufType cmdBufType = CmdBufType::Terrible;
static BackendBinding* binding = nullptr;
@@ -119,7 +127,14 @@ nxt::Device CreateCppNXTDevice() {
#if defined(__APPLE__)
binding = CreateMetalBinding();
#else
fprintf(stderr, "Metal backend no present on this platform\n");
fprintf(stderr, "Metal backend not present on this platform\n");
#endif
break;
case BackendType::D3D12:
#if defined(_WIN32)
binding = CreateD3D12Binding();
#else
fprintf(stderr, "D3D12 backend not present on this platform\n");
#endif
break;
case BackendType::Null:
@@ -269,11 +284,15 @@ extern "C" {
backendType = BackendType::Metal;
continue;
}
if (i < argc && std::string("d3d12") == argv[i]) {
backendType = BackendType::D3D12;
continue;
}
if (i < argc && std::string("null") == argv[i]) {
backendType = BackendType::Null;
continue;
}
fprintf(stderr, "--backend expects a backend name (opengl, metal, null)\n");
fprintf(stderr, "--backend expects a backend name (opengl, metal, d3d12, null)\n");
return false;
}
if (std::string("-c") == argv[i] || std::string("--comand-buffer") == argv[i]) {
@@ -291,7 +310,7 @@ extern "C" {
}
if (std::string("-h") == argv[i] || std::string("--help") == argv[i]) {
printf("Usage: %s [-b BACKEND] [-c COMMAND_BUFFER]\n", argv[0]);
printf(" BACKEND is one of: opengl, metal, null\n");
printf(" BACKEND is one of: opengl, metal, d3d12, null\n");
printf(" COMMAND_BUFFER is one of: none, terrible\n");
return false;
}