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Fix DebugDraw shaders compilation (#2362)

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* Fix DebugDraw shaders compilation

Pull request #2317 broke compilation of the DebugDraw shaders (vs_debugdraw_fill.sc, etc)
on the Intel mesa driver. Shaders with a version lower than 130 have no
support for uvec or ivec by default on OpenGL.

This patch detects when these shaders are present and bumps the version when appropriate.

* Removed the ivecs from the patch
It seems the ivecs are infact supported on versions lower than 130 on
OpenGL.
This commit is contained in:
kingscallop 2021-06-06 22:05:14 +01:00 committed by GitHub
parent 73784ac9eb
commit e65d185ed6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 30 additions and 7 deletions
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37
tools/shaderc/shaderc.cpp
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@ -254,6 +254,23 @@ namespace bgfx
NULL
};
static const char* s_bitsToEncoders[] =
{
"floatBitsToUint",
"floatBitsToInt",
"intBitsToFloat",
"uintBitsToFloat",
NULL
};
static const char* s_unsignedVecs[] =
{
"uvec2",
"uvec3",
"uvec4",
NULL
};
const char* s_uniformTypeName[] =
{
"int", "int",
@ -2129,15 +2146,14 @@ namespace bgfx
const bx::StringView preprocessedInput(preprocessor.m_preprocessed.c_str() );
uint32_t glsl_profile = profile->id;
const bool usesBitsToEncoders = true
&& _options.shaderType == 'f'
&& !bx::findIdentifierMatch(preprocessedInput, s_bitsToEncoders).isEmpty()
;
if (!bx::strFind(preprocessedInput, "layout(std430").isEmpty()
|| !bx::strFind(preprocessedInput, "image2D").isEmpty()
|| (_options.shaderType == 'f'
&& (!bx::strFind(preprocessedInput, "floatBitsToUint").isEmpty() ||
!bx::strFind(preprocessedInput, "floatBitsToInt").isEmpty() ||
!bx::strFind(preprocessedInput, "intBitsToFloat").isEmpty() ||
!bx::strFind(preprocessedInput, "uintBitsToFloat").isEmpty()
) )
)
|| usesBitsToEncoders)
{
if (profile->lang == ShadingLang::GLSL
&& glsl_profile < 430)
@ -2169,6 +2185,7 @@ namespace bgfx
const bool usesTextureArray = !bx::findIdentifierMatch(input, s_textureArray).isEmpty();
const bool usesPacking = !bx::findIdentifierMatch(input, s_ARB_shading_language_packing).isEmpty();
const bool usesViewportLayerArray = !bx::findIdentifierMatch(input, s_ARB_shader_viewport_layer_array).isEmpty();
const bool usesUnsignedVecs = !bx::findIdentifierMatch(preprocessedInput, s_unsignedVecs).isEmpty();
if (profile->lang != ShadingLang::ESSL)
{
@ -2176,6 +2193,7 @@ namespace bgfx
|| !bx::findIdentifierMatch(input, s_130).isEmpty()
|| usesInterpolationQualifiers
|| usesTexelFetch
|| usesUnsignedVecs
) );
bx::stringPrintf(code, "#version %d\n", need130 ? 130 : glsl_profile);
@ -2303,6 +2321,11 @@ namespace bgfx
}
else
{
if ((glsl_profile < 300) && usesUnsignedVecs)
{
glsl_profile = 300;
}
if (glsl_profile > 100)
{
bx::stringPrintf(code, "#version %d es\n", glsl_profile);