void FreeShaderInfo(ShaderInfo* psShaderInfo)
{
//Free any default values for constants.
uint32_t cbuf;
for(cbuf=0; cbuf<psShaderInfo->ui32NumConstantBuffers; ++cbuf)
{
ConstantBuffer* psCBuf = &psShaderInfo->psConstantBuffers[cbuf];
uint32_t var;
if(psCBuf->ui32NumVars)
{
for(var=0; var < psCBuf->ui32NumVars; ++var)
{
ShaderVar* psVar = &psCBuf->asVars[var];
if(psVar->haveDefaultValue)
{
hlslcc_free(psVar->pui32DefaultValues);
}
}
hlslcc_free(psCBuf->asVars);
}
}
hlslcc_free(psShaderInfo->psInputSignatures);
hlslcc_free(psShaderInfo->psResourceBindings);
hlslcc_free(psShaderInfo->psConstantBuffers);
hlslcc_free(psShaderInfo->psClassTypes);
hlslcc_free(psShaderInfo->psClassInstances);
hlslcc_free(psShaderInfo->psOutputSignatures);
hlslcc_free(psShaderInfo->psPatchConstantSignatures);
psShaderInfo->ui32NumInputSignatures = 0;
psShaderInfo->ui32NumResourceBindings = 0;
psShaderInfo->ui32NumConstantBuffers = 0;
psShaderInfo->ui32NumClassTypes = 0;
psShaderInfo->ui32NumClassInstances = 0;
psShaderInfo->ui32NumOutputSignatures = 0;
psShaderInfo->ui32NumPatchConstantSignatures = 0;
}
HLSLCC_API int HLSLCC_APIENTRY TranslateHLSLFromFile(const char* filename,
unsigned int flags,
GLLang language,
const GlExtensions *extensions,
GLSLCrossDependencyData* dependencies,
GLSLShader* result)
{
FILE* shaderFile;
int length;
size_t readLength;
char* shader;
int success = 0;
shaderFile = fopen(filename, "rb");
if(!shaderFile)
{
return 0;
}
fseek(shaderFile, 0, SEEK_END);
length = ftell(shaderFile);
fseek(shaderFile, 0, SEEK_SET);
shader = (char*)hlslcc_malloc(length+1);
readLength = fread(shader, 1, length, shaderFile);
fclose(shaderFile);
shaderFile = 0;
shader[readLength] = '\0';
success = TranslateHLSLFromMem(shader, flags, language, extensions, dependencies, result);
hlslcc_free(shader);
return success;
}
static void FreeSubOperands(Instruction* psInst, const uint32_t ui32NumInsts)
{
uint32_t ui32Inst;
for(ui32Inst = 0; ui32Inst < ui32NumInsts; ++ui32Inst)
{
Instruction* psCurrentInst = &psInst[ui32Inst];
const uint32_t ui32NumOperands = psCurrentInst->ui32NumOperands;
uint32_t ui32Operand;
for(ui32Operand = 0; ui32Operand < ui32NumOperands; ++ui32Operand)
{
uint32_t ui32SubOperand;
for(ui32SubOperand = 0; ui32SubOperand < MAX_SUB_OPERANDS; ++ui32SubOperand)
{
if(psCurrentInst->asOperands[ui32Operand].psSubOperand[ui32SubOperand])
{
hlslcc_free(psCurrentInst->asOperands[ui32Operand].psSubOperand[ui32SubOperand]);
psCurrentInst->asOperands[ui32Operand].psSubOperand[ui32SubOperand] = NULL;
}
}
}
}
}
HLSLCC_API int HLSLCC_APIENTRY TranslateHLSLFromMem(const char* shader,
unsigned int flags,
GLLang language,
const GlExtensions *extensions,
GLSLCrossDependencyData* dependencies,
GLSLShader* result)
{
uint32_t* tokens;
Shader* psShader;
char* glslcstr = NULL;
int GLSLShaderType = GL_FRAGMENT_SHADER_ARB;
int success = 0;
uint32_t i;
tokens = (uint32_t*)shader;
psShader = DecodeDXBC(tokens);
if(psShader)
{
HLSLCrossCompilerContext sContext;
sContext.psShader = psShader;
sContext.flags = flags;
sContext.psDependencies = dependencies;
for(i=0; i<NUM_PHASES;++i)
{
sContext.havePostShaderCode[i] = 0;
}
TranslateToGLSL(&sContext, &language,extensions);
switch(psShader->eShaderType)
{
case VERTEX_SHADER:
{
GLSLShaderType = GL_VERTEX_SHADER_ARB;
break;
}
case GEOMETRY_SHADER:
{
GLSLShaderType = GL_GEOMETRY_SHADER;
break;
}
case DOMAIN_SHADER:
{
GLSLShaderType = GL_TESS_EVALUATION_SHADER;
break;
}
case HULL_SHADER:
{
GLSLShaderType = GL_TESS_CONTROL_SHADER;
break;
}
case COMPUTE_SHADER:
{
GLSLShaderType = GL_COMPUTE_SHADER;
break;
}
default:
{
break;
}
}
glslcstr = bstr2cstr(sContext.glsl, '\0');
bdestroy(sContext.glsl);
bdestroy(sContext.earlyMain);
for(i=0; i<NUM_PHASES; ++i)
{
bdestroy(sContext.postShaderCode[i]);
}
hlslcc_free(psShader->psHSControlPointPhaseDecl);
FreeSubOperands(psShader->psHSControlPointPhaseInstr, psShader->ui32HSControlPointInstrCount);
hlslcc_free(psShader->psHSControlPointPhaseInstr);
for(i=0; i < psShader->ui32ForkPhaseCount; ++i)
{
hlslcc_free(psShader->apsHSForkPhaseDecl[i]);
FreeSubOperands(psShader->apsHSForkPhaseInstr[i], psShader->aui32HSForkInstrCount[i]);
hlslcc_free(psShader->apsHSForkPhaseInstr[i]);
}
hlslcc_free(psShader->psHSJoinPhaseDecl);
FreeSubOperands(psShader->psHSJoinPhaseInstr, psShader->ui32HSJoinInstrCount);
hlslcc_free(psShader->psHSJoinPhaseInstr);
hlslcc_free(psShader->psDecl);
FreeSubOperands(psShader->psInst, psShader->ui32InstCount);
hlslcc_free(psShader->psInst);
memcpy(&result->reflection,&psShader->sInfo,sizeof(psShader->sInfo));
hlslcc_free(psShader);
success = 1;
}
shader = 0;
tokens = 0;
/* Fill in the result struct */
result->shaderType = GLSLShaderType;
result->sourceCode = glslcstr;
result->GLSLLanguage = language;
return success;
}
HLSLCC_API int HLSLCC_APIENTRY TranslateHLSLFromMem(const char* shader,
unsigned int flags,
GLLang language,
const GlExtensions *extensions,
GLSLCrossDependencyData* dependencies,
GLSLShader* result)
{
uint32_t* tokens;
Shader* psShader;
char* glslcstr = NULL;
int GLSLShaderType = GL_FRAGMENT_SHADER_ARB;
int success = 0;
uint32_t i;
tokens = (uint32_t*)shader;
psShader = DecodeDXBC(tokens);
if(psShader)
{
HLSLCrossCompilerContext sContext;
if(psShader->ui32MajorVersion <= 3)
{
flags &= ~HLSLCC_FLAG_COMBINE_TEXTURE_SAMPLERS;
}
sContext.psShader = psShader;
sContext.flags = flags;
sContext.psDependencies = dependencies;
for(i=0; i<NUM_PHASES;++i)
{
sContext.havePostShaderCode[i] = 0;
}
TranslateToGLSL(&sContext, &language,extensions);
switch(psShader->eShaderType)
{
case VERTEX_SHADER:
{
GLSLShaderType = GL_VERTEX_SHADER_ARB;
break;
}
case GEOMETRY_SHADER:
{
GLSLShaderType = GL_GEOMETRY_SHADER;
break;
}
case DOMAIN_SHADER:
{
GLSLShaderType = GL_TESS_EVALUATION_SHADER;
break;
}
case HULL_SHADER:
{
GLSLShaderType = GL_TESS_CONTROL_SHADER;
break;
}
case COMPUTE_SHADER:
{
GLSLShaderType = GL_COMPUTE_SHADER;
break;
}
default:
{
break;
}
}
glslcstr = bstr2cstr(sContext.glsl, '\0');
bdestroy(sContext.glsl);
bdestroy(sContext.earlyMain);
for(i=0; i<NUM_PHASES; ++i)
{
bdestroy(sContext.postShaderCode[i]);
}
for(i=0; i<NUM_PHASES;++i)
{
if(psShader->asPhase[i].ppsDecl != 0)
{
uint32_t k;
for(k=0; k < psShader->asPhase[i].ui32InstanceCount; ++k)
{
hlslcc_free(psShader->asPhase[i].ppsDecl[k]);
}
hlslcc_free(psShader->asPhase[i].ppsDecl);
}
if(psShader->asPhase[i].ppsInst != 0)
{
uint32_t k;
for(k=0; k < psShader->asPhase[i].ui32InstanceCount; ++k)
{
FreeSubOperands(psShader->asPhase[i].ppsInst[k], psShader->asPhase[i].pui32InstCount[k]);
hlslcc_free(psShader->asPhase[i].ppsInst[k]);
}
hlslcc_free(psShader->asPhase[i].ppsInst);
}
}
memcpy(&result->reflection,&psShader->sInfo,sizeof(psShader->sInfo));
result->textureSamplerInfo.ui32NumTextureSamplerPairs = psShader->textureSamplerInfo.ui32NumTextureSamplerPairs;
for (i=0; i<result->textureSamplerInfo.ui32NumTextureSamplerPairs; i++)
strcpy(result->textureSamplerInfo.aTextureSamplerPair[i].Name, psShader->textureSamplerInfo.aTextureSamplerPair[i].Name);
hlslcc_free(psShader);
success = 1;
}
shader = 0;
tokens = 0;
/* Fill in the result struct */
result->shaderType = GLSLShaderType;
result->sourceCode = glslcstr;
result->GLSLLanguage = language;
return success;
}