kraken_engine/kraken
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

WIP GLSLang based compilation

Browse Source
This commit is contained in:
Kearwood Gilbert
2020-08-07 00:41:05 -07:00
parent 95fdd30b02
commit b2650474ce
1 changed files with 182 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

183
kraken/KRShaderManager.cpp
View File

@@ -31,6 +31,8 @@
#include "KRShaderManager.h" #include "KRShaderManager.h"
#include "KREngine-common.h" #include "KREngine-common.h"
#include "KRContext.h"
#include "KRSourceManager.h"
KRShaderManager::KRShaderManager(KRContext &context) : KRResourceManager(context) KRShaderManager::KRShaderManager(KRContext &context) : KRResourceManager(context)
, m_initializedGlslang(false) , m_initializedGlslang(false)
@@ -119,12 +121,191 @@ const unordered_map<std::string, KRShader *> &KRShaderManager::get(const std::st
return m_shaders[lower_extension]; return m_shaders[lower_extension];
} }
// From glslang/StandAlone/ResourceLimits.cpp
const TBuiltInResource DefaultTBuiltInResource = {
/* .MaxLights = */ 32,
/* .MaxClipPlanes = */ 6,
/* .MaxTextureUnits = */ 32,
/* .MaxTextureCoords = */ 32,
/* .MaxVertexAttribs = */ 64,
/* .MaxVertexUniformComponents = */ 4096,
/* .MaxVaryingFloats = */ 64,
/* .MaxVertexTextureImageUnits = */ 32,
/* .MaxCombinedTextureImageUnits = */ 80,
/* .MaxTextureImageUnits = */ 32,
/* .MaxFragmentUniformComponents = */ 4096,
/* .MaxDrawBuffers = */ 32,
/* .MaxVertexUniformVectors = */ 128,
/* .MaxVaryingVectors = */ 8,
/* .MaxFragmentUniformVectors = */ 16,
/* .MaxVertexOutputVectors = */ 16,
/* .MaxFragmentInputVectors = */ 15,
/* .MinProgramTexelOffset = */ -8,
/* .MaxProgramTexelOffset = */ 7,
/* .MaxClipDistances = */ 8,
/* .MaxComputeWorkGroupCountX = */ 65535,
/* .MaxComputeWorkGroupCountY = */ 65535,
/* .MaxComputeWorkGroupCountZ = */ 65535,
/* .MaxComputeWorkGroupSizeX = */ 1024,
/* .MaxComputeWorkGroupSizeY = */ 1024,
/* .MaxComputeWorkGroupSizeZ = */ 64,
/* .MaxComputeUniformComponents = */ 1024,
/* .MaxComputeTextureImageUnits = */ 16,
/* .MaxComputeImageUniforms = */ 8,
/* .MaxComputeAtomicCounters = */ 8,
/* .MaxComputeAtomicCounterBuffers = */ 1,
/* .MaxVaryingComponents = */ 60,
/* .MaxVertexOutputComponents = */ 64,
/* .MaxGeometryInputComponents = */ 64,
/* .MaxGeometryOutputComponents = */ 128,
/* .MaxFragmentInputComponents = */ 128,
/* .MaxImageUnits = */ 8,
/* .MaxCombinedImageUnitsAndFragmentOutputs = */ 8,
/* .MaxCombinedShaderOutputResources = */ 8,
/* .MaxImageSamples = */ 0,
/* .MaxVertexImageUniforms = */ 0,
/* .MaxTessControlImageUniforms = */ 0,
/* .MaxTessEvaluationImageUniforms = */ 0,
/* .MaxGeometryImageUniforms = */ 0,
/* .MaxFragmentImageUniforms = */ 8,
/* .MaxCombinedImageUniforms = */ 8,
/* .MaxGeometryTextureImageUnits = */ 16,
/* .MaxGeometryOutputVertices = */ 256,
/* .MaxGeometryTotalOutputComponents = */ 1024,
/* .MaxGeometryUniformComponents = */ 1024,
/* .MaxGeometryVaryingComponents = */ 64,
/* .MaxTessControlInputComponents = */ 128,
/* .MaxTessControlOutputComponents = */ 128,
/* .MaxTessControlTextureImageUnits = */ 16,
/* .MaxTessControlUniformComponents = */ 1024,
/* .MaxTessControlTotalOutputComponents = */ 4096,
/* .MaxTessEvaluationInputComponents = */ 128,
/* .MaxTessEvaluationOutputComponents = */ 128,
/* .MaxTessEvaluationTextureImageUnits = */ 16,
/* .MaxTessEvaluationUniformComponents = */ 1024,
/* .MaxTessPatchComponents = */ 120,
/* .MaxPatchVertices = */ 32,
/* .MaxTessGenLevel = */ 64,
/* .MaxViewports = */ 16,
/* .MaxVertexAtomicCounters = */ 0,
/* .MaxTessControlAtomicCounters = */ 0,
/* .MaxTessEvaluationAtomicCounters = */ 0,
/* .MaxGeometryAtomicCounters = */ 0,
/* .MaxFragmentAtomicCounters = */ 8,
/* .MaxCombinedAtomicCounters = */ 8,
/* .MaxAtomicCounterBindings = */ 1,
/* .MaxVertexAtomicCounterBuffers = */ 0,
/* .MaxTessControlAtomicCounterBuffers = */ 0,
/* .MaxTessEvaluationAtomicCounterBuffers = */ 0,
/* .MaxGeometryAtomicCounterBuffers = */ 0,
/* .MaxFragmentAtomicCounterBuffers = */ 1,
/* .MaxCombinedAtomicCounterBuffers = */ 1,
/* .MaxAtomicCounterBufferSize = */ 16384,
/* .MaxTransformFeedbackBuffers = */ 4,
/* .MaxTransformFeedbackInterleavedComponents = */ 64,
/* .MaxCullDistances = */ 8,
/* .MaxCombinedClipAndCullDistances = */ 8,
/* .MaxSamples = */ 4,
/* .maxMeshOutputVerticesNV = */ 256,
/* .maxMeshOutputPrimitivesNV = */ 512,
/* .maxMeshWorkGroupSizeX_NV = */ 32,
/* .maxMeshWorkGroupSizeY_NV = */ 1,
/* .maxMeshWorkGroupSizeZ_NV = */ 1,
/* .maxTaskWorkGroupSizeX_NV = */ 32,
/* .maxTaskWorkGroupSizeY_NV = */ 1,
/* .maxTaskWorkGroupSizeZ_NV = */ 1,
/* .maxMeshViewCountNV = */ 4,
/* .limits = */ {
/* .nonInductiveForLoops = */ 1,
/* .whileLoops = */ 1,
/* .doWhileLoops = */ 1,
/* .generalUniformIndexing = */ 1,
/* .generalAttributeMatrixVectorIndexing = */ 1,
/* .generalVaryingIndexing = */ 1,
/* .generalSamplerIndexing = */ 1,
/* .generalVariableIndexing = */ 1,
/* .generalConstantMatrixVectorIndexing = */ 1,
} };
bool KRShaderManager::compileAll() bool KRShaderManager::compileAll()
{ {
bool success = true;
if (!m_initializedGlslang) { if (!m_initializedGlslang) {
glslang::InitializeProcess(); glslang::InitializeProcess();
m_initializedGlslang = true; m_initializedGlslang = true;
} }
return true;
KRSourceManager* pSourceManager = getContext().getSourceManager();
const unordered_map<std::string, KRSource*> vertSources = pSourceManager->get("vert");
for (const std::pair<const std::string, KRSource*> vertSourceEntry : vertSources) {
KRSource* vertSource = vertSourceEntry.second;
KRSource* fragSource = pSourceManager->get(vertSourceEntry.first, "frag");
const char* programName = vertSourceEntry.first.c_str();
TBuiltInResource resources;
resources = DefaultTBuiltInResource;
EShMessages messages = EShMsgDefault;
bool desktop = true;
const int defaultVersion = desktop ? 110 : 100;
glslang::TShader::ForbidIncluder includer;
glslang::TShader vertShader(EShLangVertex);
glslang::TShader fragShader(EShLangFragment);
glslang::TProgram program; // this must be declared after the TShader's to ensure it is deallocated before the TShader's
if (vertSource) {
vertSource->getData()->lock();
}
if (fragSource) {
fragSource->getData()->lock();
}
const char* vertSourceText[1];
const char* fragSourceText[1];
int vertSourceLen[1];
int fragSourceLen[1];
const char* vertSourceNameStr[1];
const char* fragSourceNameStr[1];
std::string vertSourceName;
std::string fragSourceName;
auto parse_shader = [&](KRSource* source, glslang::TShader& shader, const char** sourceText, int* sourceLen, const char** sourceNameStr, std::string& sourceName) {
if(source == nullptr) {
return;
}
sourceName = source->getName() + "." + source->getExtension();
sourceText[0] = (char *)source->getData()->getStart();
sourceLen[0] = source->getData()->getSize();
sourceNameStr[0] = sourceName.c_str();
shader.setStringsWithLengthsAndNames(sourceText, sourceLen, sourceNameStr, 1);
//shader.setStrings(&sourceStr, 1);
if (shader.parse(&resources, defaultVersion, false, messages)) {
program.addShader(&shader);
} else {
const char* log = shader.getInfoLog();
printf("Failed to compile shader, %s. Log:\n%s\n", sourceName.c_str(), log);
success = false;
}
};
parse_shader(vertSource, vertShader, vertSourceText, vertSourceLen, vertSourceNameStr, vertSourceName);
parse_shader(fragSource, fragShader, fragSourceText, fragSourceLen, fragSourceNameStr, fragSourceName);
if (!program.link(messages)) {
const char* log = program.getInfoLog();
printf("Link failed. Log:\n%s\n", log);
success = false;
}
if (vertSource) {
vertSource->getData()->unlock();
}
if (fragSource) {
fragSource->getData()->unlock();
}
}
return success;
} }