forked from pool/shaderc
Jan Engelhardt
1d788d44f9
OBS-URL: https://build.opensuse.org/package/show/X11:Wayland/shaderc?expand=0&rev=7
90 lines
3.8 KiB
Diff
90 lines
3.8 KiB
Diff
From ec4ea59c6d523ee563611651e6a15b1c31ffcd2e Mon Sep 17 00:00:00 2001
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From: David Neto <dneto@google.com>
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Date: Wed, 21 Aug 2019 21:33:34 -0400
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Subject: [PATCH] Force Glslang to support HLSL in its interface (#784)
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Fixes a compilation problem introduced by recent
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Glslang changes to optionally build into a very small
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GLSL-only binary.
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Also fix test cases to have set and binding layout qualifiers on
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buffers when compiling for Vulkan. This rule is now enforced by
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Glslang.
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---
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README.md | 8 ++++++++
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glslc/test/option_dash_fhlsl_offsets.py | 1 +
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libshaderc/src/common_shaders_for_test.h | 1 +
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libshaderc_util/CMakeLists.txt | 3 +++
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libshaderc_util/src/compiler_test.cc | 1 +
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5 files changed, 14 insertions(+)
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Index: shaderc-2019.0/README.md
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===================================================================
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--- shaderc-2019.0.orig/README.md
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+++ shaderc-2019.0/README.md
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@@ -73,6 +73,14 @@ Shaderc into.
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artifacts built by [Appveyor][appveyor] for the top of the tree of the master
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branch under the "Artifacts" tab of a certain job.
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+Note: Shaderc assumes Glslang supports HLSL compilation. The instructions
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+below assume you're building Glslang from sources, and in a subtree
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+of `shaderc/third_party`. In that scenario, Glslang's HLSL support
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+is automatically enabled. Shaderc also can be built using a Glslang
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+from outside the `shaderc/third_party` tree. In that case you must
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+ensure that that external Glslang is built with HLSL functionality.
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+See Glslang's `ENABLE_HLSL` CMake setting.)
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+
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1) Check out the source code:
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```sh
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Index: shaderc-2019.0/glslc/test/option_dash_fhlsl_offsets.py
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===================================================================
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--- shaderc-2019.0.orig/glslc/test/option_dash_fhlsl_offsets.py
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+++ shaderc-2019.0/glslc/test/option_dash_fhlsl_offsets.py
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@@ -19,6 +19,7 @@ from placeholder import FileShader
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# A GLSL shader with uniforms without explicit bindings.
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GLSL_SHADER = """#version 450
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+ layout(set=0, binding=0)
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buffer B { float x; vec3 y; } my_ssbo;
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void main() {
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my_ssbo.x = 1.0;
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Index: shaderc-2019.0/libshaderc/src/common_shaders_for_test.h
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===================================================================
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--- shaderc-2019.0.orig/libshaderc/src/common_shaders_for_test.h
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+++ shaderc-2019.0/libshaderc/src/common_shaders_for_test.h
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@@ -293,6 +293,7 @@ const char kShaderWithUniformsWithoutBin
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// A GLSL vertex shader with a weirdly packed block.
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const char kGlslShaderWeirdPacking[] =
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R"(#version 450
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+ layout(set=0, binding=0)
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buffer B { float x; vec3 foo; } my_ssbo;
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void main() { my_ssbo.x = 1.0; })";
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Index: shaderc-2019.0/libshaderc_util/CMakeLists.txt
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===================================================================
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--- shaderc-2019.0.orig/libshaderc_util/CMakeLists.txt
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+++ shaderc-2019.0/libshaderc_util/CMakeLists.txt
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@@ -25,6 +25,9 @@ add_library(shaderc_util STATIC
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shaderc_default_compile_options(shaderc_util)
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target_include_directories(shaderc_util
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PUBLIC include PRIVATE ${glslang_SOURCE_DIR})
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+# We use parts of Glslang's HLSL compilation interface, which
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+# now requires this preprocessor definition.
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+add_definitions(-DENABLE_HLSL)
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find_package(Threads)
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target_link_libraries(shaderc_util PRIVATE
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Index: shaderc-2019.0/libshaderc_util/src/compiler_test.cc
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===================================================================
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--- shaderc-2019.0.orig/libshaderc_util/src/compiler_test.cc
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+++ shaderc-2019.0/libshaderc_util/src/compiler_test.cc
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@@ -118,6 +118,7 @@ const char kGlslVertShaderNoExplicitLoca
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// A GLSL vertex shader with a weirdly packed block.
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const char kGlslShaderWeirdPacking[] =
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R"(#version 450
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+ layout(set = 0, binding = 0)
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buffer B { float x; vec3 foo; } my_ssbo;
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void main() { my_ssbo.x = 1.0; })";
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