ShHandle CompilerD3D::getCompilerHandle(GLenum type)
{
ShHandle *compiler = NULL;
switch (type)
{
case GL_VERTEX_SHADER:
compiler = &mVertexCompiler;
break;
case GL_FRAGMENT_SHADER:
compiler = &mFragmentCompiler;
break;
default:
UNREACHABLE();
return NULL;
}
if (!(*compiler))
{
if (activeCompilerHandles == 0)
{
ShInitialize();
}
*compiler = ShConstructCompiler(type, mSpec, mOutputType, &mResources);
activeCompilerHandles++;
}
return *compiler;
}
Shader::Shader(ResourceManager *manager, GLuint handle) : mHandle(handle), mResourceManager(manager)
{
mSource = NULL;
mHlsl = NULL;
mInfoLog = NULL;
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
if (!mFragmentCompiler)
{
int result = ShInitialize();
if (result)
{
ShBuiltInResources resources;
ShInitBuiltInResources(&resources);
Context *context = getContext();
resources.MaxVertexAttribs = MAX_VERTEX_ATTRIBS;
resources.MaxVertexUniformVectors = MAX_VERTEX_UNIFORM_VECTORS;
resources.MaxVaryingVectors = context->getMaximumVaryingVectors();
resources.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS;
resources.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS;
resources.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
resources.MaxFragmentUniformVectors = context->getMaximumFragmentUniformVectors();
resources.MaxDrawBuffers = MAX_DRAW_BUFFERS;
resources.OES_standard_derivatives = 1;
mFragmentCompiler = ShConstructCompiler(SH_FRAGMENT_SHADER, SH_GLES2_SPEC, &resources);
mVertexCompiler = ShConstructCompiler(SH_VERTEX_SHADER, SH_GLES2_SPEC, &resources);
}
}
mRefCount = 0;
mDeleteStatus = false;
}
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
void Shader::initializeCompiler()
{
if (!mFragmentCompiler)
{
int result = ShInitialize();
if (result)
{
ShBuiltInResources resources;
ShInitBuiltInResources(&resources);
Context *context = getContext();
resources.MaxVertexAttribs = MAX_VERTEX_ATTRIBS;
resources.MaxVertexUniformVectors = MAX_VERTEX_UNIFORM_VECTORS;
resources.MaxVaryingVectors = context->getMaximumVaryingVectors();
resources.MaxVertexTextureImageUnits = context->getMaximumVertexTextureImageUnits();
resources.MaxCombinedTextureImageUnits = context->getMaximumCombinedTextureImageUnits();
resources.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
resources.MaxFragmentUniformVectors = context->getMaximumFragmentUniformVectors();
resources.MaxDrawBuffers = MAX_DRAW_BUFFERS;
resources.OES_standard_derivatives = 1;
// resources.OES_EGL_image_external = getDisplay()->isD3d9ExDevice() ? 1 : 0; // TODO: commented out until the extension is actually supported.
mFragmentCompiler = ShConstructCompiler(SH_FRAGMENT_SHADER, SH_GLES2_SPEC, SH_HLSL_OUTPUT, &resources);
mVertexCompiler = ShConstructCompiler(SH_VERTEX_SHADER, SH_GLES2_SPEC, SH_HLSL_OUTPUT, &resources);
}
}
}
virtual void SetUp()
{
if (!ShInitialize())
{
FAIL() << "Failed to initialize the compiler.";
}
}
Shader::Shader(ResourceManager *manager, GLuint handle) : mHandle(handle), mResourceManager(manager)
{
mSource = NULL;
mHlsl = NULL;
mInfoLog = NULL;
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
if (!mFragmentCompiler)
{
int result = ShInitialize();
if (result)
{
TBuiltInResource resources;
ShInitBuiltInResource(&resources);
resources.MaxVertexAttribs = MAX_VERTEX_ATTRIBS;
resources.MaxVertexUniformVectors = MAX_VERTEX_UNIFORM_VECTORS;
resources.MaxVaryingVectors = MAX_VARYING_VECTORS;
resources.MaxVertexTextureImageUnits = MAX_VERTEX_TEXTURE_IMAGE_UNITS;
resources.MaxCombinedTextureImageUnits = MAX_COMBINED_TEXTURE_IMAGE_UNITS;
resources.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
resources.MaxFragmentUniformVectors = MAX_FRAGMENT_UNIFORM_VECTORS;
resources.MaxDrawBuffers = MAX_DRAW_BUFFERS;
mFragmentCompiler = ShConstructCompiler(EShLangFragment, EShSpecGLES2, &resources);
mVertexCompiler = ShConstructCompiler(EShLangVertex, EShSpecGLES2, &resources);
}
}
mRefCount = 0;
mDeleteStatus = false;
}
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
void Shader::initializeCompiler()
{
if (!mFragmentCompiler)
{
int result = ShInitialize();
if (result)
{
ShShaderOutput hlslVersion = (mRenderer->getMajorShaderModel() >= 4) ? SH_HLSL11_OUTPUT : SH_HLSL9_OUTPUT;
ShBuiltInResources resources;
ShInitBuiltInResources(&resources);
resources.MaxVertexAttribs = MAX_VERTEX_ATTRIBS;
resources.MaxVertexUniformVectors = mRenderer->getMaxVertexUniformVectors();
resources.MaxVaryingVectors = mRenderer->getMaxVaryingVectors();
resources.MaxVertexTextureImageUnits = 0;
resources.MaxCombinedTextureImageUnits = mRenderer->getMaxCombinedTextureImageUnits();
resources.MaxTextureImageUnits = MAX_TEXTURE_IMAGE_UNITS;
resources.MaxFragmentUniformVectors = mRenderer->getMaxFragmentUniformVectors();
resources.MaxDrawBuffers = mRenderer->getMaxRenderTargets();
resources.OES_standard_derivatives = mRenderer->getDerivativeInstructionSupport();
resources.EXT_draw_buffers = mRenderer->getMaxRenderTargets() > 1;
// resources.OES_EGL_image_external = mRenderer->getShareHandleSupport() ? 1 : 0; // TODO: commented out until the extension is actually supported.
resources.FragmentPrecisionHigh = 1; // Shader Model 2+ always supports FP24 (s16e7) which corresponds to highp
resources.EXT_frag_depth = 1; // Shader Model 2+ always supports explicit depth output
mFragmentCompiler = ShConstructCompiler(SH_FRAGMENT_SHADER, SH_GLES2_SPEC, hlslVersion, &resources);
mVertexCompiler = ShConstructCompiler(SH_VERTEX_SHADER, SH_GLES2_SPEC, hlslVersion, &resources);
}
}
}
ANGLEWebKitBridge::ANGLEWebKitBridge(ShShaderOutput shaderOutput) :
builtCompilers(false),
m_fragmentCompiler(0),
m_vertexCompiler(0),
m_shaderOutput(shaderOutput)
{
ShInitialize();
}
osgToy::GlslLint::GlslLint( Options options ) :
_options(options), _linker(0), _uniformMap(0)
{
if( ! g_parserLibraryInitialized )
{
ShInitialize();
g_parserLibraryInitialized = true;
}
}
ANGLEWebKitBridge::ANGLEWebKitBridge(ShShaderOutput shaderOutput, ShShaderSpec shaderSpec)
: builtCompilers(false)
, m_fragmentCompiler(0)
, m_vertexCompiler(0)
, m_shaderOutput(shaderOutput)
, m_shaderSpec(shaderSpec)
{
// This is a no-op if it's already initialized.
ShInitialize();
}
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
void ShaderD3D::initializeCompiler()
{
if (!mFragmentCompiler)
{
bool result = ShInitialize();
if (result)
{
ShShaderSpec specVersion = (mRenderer->getCurrentClientVersion() >= 3) ? SH_GLES3_SPEC : SH_GLES2_SPEC;
ShShaderOutput hlslVersion = (mRenderer->getMajorShaderModel() >= 4) ? SH_HLSL11_OUTPUT : SH_HLSL9_OUTPUT;
ShBuiltInResources resources;
ShInitBuiltInResources(&resources);
// TODO(geofflang): use context's caps
const gl::Caps &caps = mRenderer->getRendererCaps();
const gl::Extensions &extensions = mRenderer->getRendererExtensions();
resources.MaxVertexAttribs = caps.maxVertexAttributes;
resources.MaxVertexUniformVectors = caps.maxVertexUniformVectors;
resources.MaxVaryingVectors = caps.maxVaryingVectors;
resources.MaxVertexTextureImageUnits = caps.maxVertexTextureImageUnits;
resources.MaxCombinedTextureImageUnits = caps.maxCombinedTextureImageUnits;
resources.MaxTextureImageUnits = caps.maxTextureImageUnits;
resources.MaxFragmentUniformVectors = caps.maxFragmentUniformVectors;
resources.MaxDrawBuffers = caps.maxDrawBuffers;
resources.OES_standard_derivatives = extensions.standardDerivatives;
resources.EXT_draw_buffers = extensions.drawBuffers;
resources.EXT_shader_texture_lod = 1;
// resources.OES_EGL_image_external = mRenderer->getShareHandleSupport() ? 1 : 0; // TODO: commented out until the extension is actually supported.
resources.FragmentPrecisionHigh = 1; // Shader Model 2+ always supports FP24 (s16e7) which corresponds to highp
resources.EXT_frag_depth = 1; // Shader Model 2+ always supports explicit depth output
// GLSL ES 3.0 constants
resources.MaxVertexOutputVectors = caps.maxVertexOutputComponents / 4;
resources.MaxFragmentInputVectors = caps.maxFragmentInputComponents / 4;
resources.MinProgramTexelOffset = caps.minProgramTexelOffset;
resources.MaxProgramTexelOffset = caps.maxProgramTexelOffset;
mFragmentCompiler = ShConstructCompiler(GL_FRAGMENT_SHADER, specVersion, hlslVersion, &resources);
mVertexCompiler = ShConstructCompiler(GL_VERTEX_SHADER, specVersion, hlslVersion, &resources);
}
}
}
Shader::Shader(GLuint handle) : mHandle(handle)
{
mSource = NULL;
mHlsl = NULL;
mInfoLog = NULL;
// Perform a one-time initialization of the shader compiler (or after being destructed by releaseCompiler)
if (!mFragmentCompiler)
{
int result = ShInitialize();
if (result)
{
mFragmentCompiler = ShConstructCompiler(EShLangFragment, EDebugOpObjectCode);
mVertexCompiler = ShConstructCompiler(EShLangVertex, EDebugOpObjectCode);
}
}
mAttachCount = 0;
mDeleteStatus = false;
}
int main(int argc, char* argv[])
{
TFailCode failCode = ESuccess;
int compileOptions = 0;
int numCompiles = 0;
ShHandle vertexCompiler = 0;
ShHandle fragmentCompiler = 0;
char* buffer = 0;
int bufferLen = 0;
int numAttribs = 0, numUniforms = 0;
ShShaderSpec spec = SH_GLES2_SPEC;
ShShaderOutput output = SH_ESSL_OUTPUT;
ShInitialize();
ShBuiltInResources resources;
GenerateResources(&resources);
argc--;
argv++;
for (; (argc >= 1) && (failCode == ESuccess); argc--, argv++) {
if (argv[0][0] == '-') {
switch (argv[0][1]) {
case 'i':
compileOptions |= SH_INTERMEDIATE_TREE;
break;
case 'm':
compileOptions |= SH_MAP_LONG_VARIABLE_NAMES;
break;
case 'o':
compileOptions |= SH_OBJECT_CODE;
break;
case 'u':
compileOptions |= SH_ATTRIBUTES_UNIFORMS;
break;
case 'l':
compileOptions |= SH_UNROLL_FOR_LOOP_WITH_INTEGER_INDEX;
break;
case 'e':
compileOptions |= SH_EMULATE_BUILT_IN_FUNCTIONS;
break;
case 'd':
compileOptions |= SH_DEPENDENCY_GRAPH;
break;
case 't':
compileOptions |= SH_TIMING_RESTRICTIONS;
break;
case 's':
if (argv[0][2] == '=') {
switch (argv[0][3]) {
case 'e':
spec = SH_GLES2_SPEC;
break;
case 'w':
spec = SH_WEBGL_SPEC;
break;
case 'c':
spec = SH_CSS_SHADERS_SPEC;
break;
default:
failCode = EFailUsage;
}
} else {
failCode = EFailUsage;
}
break;
case 'b':
if (argv[0][2] == '=') {
switch (argv[0][3]) {
case 'e':
output = SH_ESSL_OUTPUT;
break;
case 'g':
output = SH_GLSL_OUTPUT;
break;
case 'h':
output = SH_HLSL_OUTPUT;
break;
default:
failCode = EFailUsage;
}
} else {
failCode = EFailUsage;
}
break;
case 'x':
if (argv[0][2] == '=') {
switch (argv[0][3]) {
case 'i':
resources.OES_EGL_image_external = 1;
break;
case 'd':
resources.OES_standard_derivatives = 1;
break;
case 'r':
resources.ARB_texture_rectangle = 1;
break;
default:
failCode = EFailUsage;
}
} else {
failCode = EFailUsage;
}
break;
default:
failCode = EFailUsage;
}
} else {
ShHandle compiler = 0;
switch (FindShaderType(argv[0])) {
case SH_VERTEX_SHADER:
if (vertexCompiler == 0)
vertexCompiler = ShConstructCompiler(
SH_VERTEX_SHADER, spec, output, &resources);
compiler = vertexCompiler;
break;
case SH_FRAGMENT_SHADER:
if (fragmentCompiler == 0)
fragmentCompiler = ShConstructCompiler(
SH_FRAGMENT_SHADER, spec, output, &resources);
compiler = fragmentCompiler;
break;
default:
break;
}
if (compiler) {
bool compiled = CompileFile(argv[0], compiler, compileOptions);
LogMsg("BEGIN", "COMPILER", numCompiles, "INFO LOG");
ShGetInfo(compiler, SH_INFO_LOG_LENGTH, &bufferLen);
buffer = (char*) realloc(buffer, bufferLen * sizeof(char));
ShGetInfoLog(compiler, buffer);
puts(buffer);
LogMsg("END", "COMPILER", numCompiles, "INFO LOG");
printf("\n\n");
if (compiled && (compileOptions & SH_OBJECT_CODE)) {
LogMsg("BEGIN", "COMPILER", numCompiles, "OBJ CODE");
ShGetInfo(compiler, SH_OBJECT_CODE_LENGTH, &bufferLen);
buffer = (char*) realloc(buffer, bufferLen * sizeof(char));
ShGetObjectCode(compiler, buffer);
puts(buffer);
LogMsg("END", "COMPILER", numCompiles, "OBJ CODE");
printf("\n\n");
}
if (compiled && (compileOptions & SH_ATTRIBUTES_UNIFORMS)) {
LogMsg("BEGIN", "COMPILER", numCompiles, "ACTIVE ATTRIBS");
PrintActiveVariables(compiler, SH_ACTIVE_ATTRIBUTES, (compileOptions & SH_MAP_LONG_VARIABLE_NAMES) != 0);
LogMsg("END", "COMPILER", numCompiles, "ACTIVE ATTRIBS");
printf("\n\n");
LogMsg("BEGIN", "COMPILER", numCompiles, "ACTIVE UNIFORMS");
PrintActiveVariables(compiler, SH_ACTIVE_UNIFORMS, (compileOptions & SH_MAP_LONG_VARIABLE_NAMES) != 0);
LogMsg("END", "COMPILER", numCompiles, "ACTIVE UNIFORMS");
printf("\n\n");
}
if (!compiled)
failCode = EFailCompile;
++numCompiles;
} else {
failCode = EFailCompilerCreate;
}
}
}
if ((vertexCompiler == 0) && (fragmentCompiler == 0))
failCode = EFailUsage;
if (failCode == EFailUsage)
usage();
if (vertexCompiler)
ShDestruct(vertexCompiler);
if (fragmentCompiler)
ShDestruct(fragmentCompiler);
if (buffer)
free(buffer);
ShFinalize();
return failCode;
}
ANGLEWebKitBridge::ANGLEWebKitBridge() :
builtCompilers(false)
{
ShInitialize();
}
bool
WebGLContext::InitAndValidateGL()
{
if (!gl)
return false;
// Unconditionally create a new format usage authority. This is
// important when restoring contexts and extensions need to add
// formats back into the authority.
mFormatUsage = CreateFormatUsage(gl);
if (!mFormatUsage)
return false;
GLenum error = gl->fGetError();
if (error != LOCAL_GL_NO_ERROR) {
GenerateWarning("GL error 0x%x occurred during OpenGL context"
" initialization, before WebGL initialization!", error);
return false;
}
mMinCapability = gfxPrefs::WebGLMinCapabilityMode();
mDisableExtensions = gfxPrefs::WebGLDisableExtensions();
mLoseContextOnMemoryPressure = gfxPrefs::WebGLLoseContextOnMemoryPressure();
mCanLoseContextInForeground = gfxPrefs::WebGLCanLoseContextInForeground();
mRestoreWhenVisible = gfxPrefs::WebGLRestoreWhenVisible();
if (MinCapabilityMode())
mDisableFragHighP = true;
// These are the default values, see 6.2 State tables in the
// OpenGL ES 2.0.25 spec.
mColorWriteMask[0] = 1;
mColorWriteMask[1] = 1;
mColorWriteMask[2] = 1;
mColorWriteMask[3] = 1;
mDepthWriteMask = 1;
mColorClearValue[0] = 0.f;
mColorClearValue[1] = 0.f;
mColorClearValue[2] = 0.f;
mColorClearValue[3] = 0.f;
mDepthClearValue = 1.f;
mStencilClearValue = 0;
mStencilRefFront = 0;
mStencilRefBack = 0;
/*
// Technically, we should be setting mStencil[...] values to
// `allOnes`, but either ANGLE breaks or the SGX540s on Try break.
GLuint stencilBits = 0;
gl->GetUIntegerv(LOCAL_GL_STENCIL_BITS, &stencilBits);
GLuint allOnes = ~(UINT32_MAX << stencilBits);
mStencilValueMaskFront = allOnes;
mStencilValueMaskBack = allOnes;
mStencilWriteMaskFront = allOnes;
mStencilWriteMaskBack = allOnes;
*/
gl->GetUIntegerv(LOCAL_GL_STENCIL_VALUE_MASK, &mStencilValueMaskFront);
gl->GetUIntegerv(LOCAL_GL_STENCIL_BACK_VALUE_MASK, &mStencilValueMaskBack);
gl->GetUIntegerv(LOCAL_GL_STENCIL_WRITEMASK, &mStencilWriteMaskFront);
gl->GetUIntegerv(LOCAL_GL_STENCIL_BACK_WRITEMASK, &mStencilWriteMaskBack);
AssertUintParamCorrect(gl, LOCAL_GL_STENCIL_VALUE_MASK, mStencilValueMaskFront);
AssertUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_VALUE_MASK, mStencilValueMaskBack);
AssertUintParamCorrect(gl, LOCAL_GL_STENCIL_WRITEMASK, mStencilWriteMaskFront);
AssertUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_WRITEMASK, mStencilWriteMaskBack);
mDitherEnabled = true;
mRasterizerDiscardEnabled = false;
mScissorTestEnabled = false;
// Bindings, etc.
mActiveTexture = 0;
mDefaultFB_DrawBuffer0 = LOCAL_GL_BACK;
mEmitContextLostErrorOnce = true;
mWebGLError = LOCAL_GL_NO_ERROR;
mUnderlyingGLError = LOCAL_GL_NO_ERROR;
mBound2DTextures.Clear();
mBoundCubeMapTextures.Clear();
mBound3DTextures.Clear();
mBound2DArrayTextures.Clear();
mBoundSamplers.Clear();
mBoundArrayBuffer = nullptr;
mBoundTransformFeedbackBuffer = nullptr;
mCurrentProgram = nullptr;
mBoundDrawFramebuffer = nullptr;
mBoundReadFramebuffer = nullptr;
mBoundRenderbuffer = nullptr;
MakeContextCurrent();
// For OpenGL compat. profiles, we always keep vertex attrib 0 array enabled.
if (gl->IsCompatibilityProfile())
gl->fEnableVertexAttribArray(0);
if (MinCapabilityMode())
mGLMaxVertexAttribs = MINVALUE_GL_MAX_VERTEX_ATTRIBS;
else
gl->fGetIntegerv(LOCAL_GL_MAX_VERTEX_ATTRIBS, &mGLMaxVertexAttribs);
if (mGLMaxVertexAttribs < 8) {
GenerateWarning("GL_MAX_VERTEX_ATTRIBS: %d is < 8!",
mGLMaxVertexAttribs);
return false;
}
// Note: GL_MAX_TEXTURE_UNITS is fixed at 4 for most desktop hardware,
// even though the hardware supports much more. The
// GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS value is the accurate value.
if (MinCapabilityMode())
mGLMaxTextureUnits = MINVALUE_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS;
else
gl->fGetIntegerv(LOCAL_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &mGLMaxTextureUnits);
if (mGLMaxTextureUnits < 8) {
GenerateWarning("GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: %d is < 8!",
mGLMaxTextureUnits);
return false;
}
mBound2DTextures.SetLength(mGLMaxTextureUnits);
mBoundCubeMapTextures.SetLength(mGLMaxTextureUnits);
mBound3DTextures.SetLength(mGLMaxTextureUnits);
mBound2DArrayTextures.SetLength(mGLMaxTextureUnits);
mBoundSamplers.SetLength(mGLMaxTextureUnits);
////////////////
if (MinCapabilityMode()) {
mImplMaxTextureSize = MINVALUE_GL_MAX_TEXTURE_SIZE;
mImplMaxCubeMapTextureSize = MINVALUE_GL_MAX_CUBE_MAP_TEXTURE_SIZE;
mImplMaxRenderbufferSize = MINVALUE_GL_MAX_RENDERBUFFER_SIZE;
mImplMax3DTextureSize = MINVALUE_GL_MAX_3D_TEXTURE_SIZE;
mImplMaxArrayTextureLayers = MINVALUE_GL_MAX_ARRAY_TEXTURE_LAYERS;
mGLMaxTextureImageUnits = MINVALUE_GL_MAX_TEXTURE_IMAGE_UNITS;
mGLMaxVertexTextureImageUnits = MINVALUE_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS;
} else {
gl->fGetIntegerv(LOCAL_GL_MAX_TEXTURE_SIZE, (GLint*)&mImplMaxTextureSize);
gl->fGetIntegerv(LOCAL_GL_MAX_CUBE_MAP_TEXTURE_SIZE, (GLint*)&mImplMaxCubeMapTextureSize);
gl->fGetIntegerv(LOCAL_GL_MAX_RENDERBUFFER_SIZE, (GLint*)&mImplMaxRenderbufferSize);
if (!gl->GetPotentialInteger(LOCAL_GL_MAX_3D_TEXTURE_SIZE, (GLint*)&mImplMax3DTextureSize))
mImplMax3DTextureSize = 0;
if (!gl->GetPotentialInteger(LOCAL_GL_MAX_ARRAY_TEXTURE_LAYERS, (GLint*)&mImplMaxArrayTextureLayers))
mImplMaxArrayTextureLayers = 0;
gl->fGetIntegerv(LOCAL_GL_MAX_TEXTURE_IMAGE_UNITS, &mGLMaxTextureImageUnits);
gl->fGetIntegerv(LOCAL_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, &mGLMaxVertexTextureImageUnits);
}
// If we don't support a target, its max size is 0. We should only floor-to-POT if the
// value if it's non-zero. (NB log2(0) is -Inf, so zero isn't an integer power-of-two)
const auto fnFloorPOTIfSupported = [](uint32_t& val) {
if (val) {
val = FloorPOT(val);
}
};
fnFloorPOTIfSupported(mImplMaxTextureSize);
fnFloorPOTIfSupported(mImplMaxCubeMapTextureSize);
fnFloorPOTIfSupported(mImplMaxRenderbufferSize);
fnFloorPOTIfSupported(mImplMax3DTextureSize);
fnFloorPOTIfSupported(mImplMaxArrayTextureLayers);
////////////////
mGLMaxColorAttachments = 1;
mGLMaxDrawBuffers = 1;
gl->GetPotentialInteger(LOCAL_GL_MAX_COLOR_ATTACHMENTS,
(GLint*)&mGLMaxColorAttachments);
gl->GetPotentialInteger(LOCAL_GL_MAX_DRAW_BUFFERS, (GLint*)&mGLMaxDrawBuffers);
if (MinCapabilityMode()) {
mGLMaxColorAttachments = std::min(mGLMaxColorAttachments,
kMinMaxColorAttachments);
mGLMaxDrawBuffers = std::min(mGLMaxDrawBuffers, kMinMaxDrawBuffers);
}
if (IsWebGL2()) {
mImplMaxColorAttachments = mGLMaxColorAttachments;
mImplMaxDrawBuffers = std::min(mGLMaxDrawBuffers, mImplMaxColorAttachments);
} else {
mImplMaxColorAttachments = 1;
mImplMaxDrawBuffers = 1;
}
////////////////
if (MinCapabilityMode()) {
mGLMaxFragmentUniformVectors = MINVALUE_GL_MAX_FRAGMENT_UNIFORM_VECTORS;
mGLMaxVertexUniformVectors = MINVALUE_GL_MAX_VERTEX_UNIFORM_VECTORS;
mGLMaxVaryingVectors = MINVALUE_GL_MAX_VARYING_VECTORS;
} else {
if (gl->IsSupported(gl::GLFeature::ES2_compatibility)) {
gl->fGetIntegerv(LOCAL_GL_MAX_FRAGMENT_UNIFORM_VECTORS, &mGLMaxFragmentUniformVectors);
gl->fGetIntegerv(LOCAL_GL_MAX_VERTEX_UNIFORM_VECTORS, &mGLMaxVertexUniformVectors);
gl->fGetIntegerv(LOCAL_GL_MAX_VARYING_VECTORS, &mGLMaxVaryingVectors);
} else {
gl->fGetIntegerv(LOCAL_GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, &mGLMaxFragmentUniformVectors);
mGLMaxFragmentUniformVectors /= 4;
gl->fGetIntegerv(LOCAL_GL_MAX_VERTEX_UNIFORM_COMPONENTS, &mGLMaxVertexUniformVectors);
mGLMaxVertexUniformVectors /= 4;
/* We are now going to try to read GL_MAX_VERTEX_OUTPUT_COMPONENTS
* and GL_MAX_FRAGMENT_INPUT_COMPONENTS, however these constants
* only entered the OpenGL standard at OpenGL 3.2. So we will try
* reading, and check OpenGL error for INVALID_ENUM.
*
* On the public_webgl list, "problematic GetParameter pnames"
* thread, the following formula was given:
* maxVaryingVectors = min(GL_MAX_VERTEX_OUTPUT_COMPONENTS,
* GL_MAX_FRAGMENT_INPUT_COMPONENTS) / 4
*/
GLint maxVertexOutputComponents = 0;
GLint maxFragmentInputComponents = 0;
const bool ok = (gl->GetPotentialInteger(LOCAL_GL_MAX_VERTEX_OUTPUT_COMPONENTS,
&maxVertexOutputComponents) &&
gl->GetPotentialInteger(LOCAL_GL_MAX_FRAGMENT_INPUT_COMPONENTS,
&maxFragmentInputComponents));
if (ok) {
mGLMaxVaryingVectors = std::min(maxVertexOutputComponents,
maxFragmentInputComponents) / 4;
} else {
mGLMaxVaryingVectors = 16;
// 16 = 64/4, and 64 is the min value for
// maxVertexOutputComponents in the OpenGL 3.2 spec.
}
}
}
if (gl->IsCompatibilityProfile()) {
// gl_PointSize is always available in ES2 GLSL, but has to be
// specifically enabled on desktop GLSL.
gl->fEnable(LOCAL_GL_VERTEX_PROGRAM_POINT_SIZE);
/* gl_PointCoord is always available in ES2 GLSL and in newer desktop
* GLSL versions, but apparently not in OpenGL 2 and apparently not (due
* to a driver bug) on certain NVIDIA setups. See:
* http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=261472
*
* Note that this used to cause crashes on old ATI drivers... Hopefully
* not a significant anymore. See bug 602183.
*/
gl->fEnable(LOCAL_GL_POINT_SPRITE);
}
#ifdef XP_MACOSX
if (gl->WorkAroundDriverBugs() &&
gl->Vendor() == gl::GLVendor::ATI &&
!nsCocoaFeatures::IsAtLeastVersion(10,9))
{
// The Mac ATI driver, in all known OSX version up to and including
// 10.8, renders points sprites upside-down. (Apple bug 11778921)
gl->fPointParameterf(LOCAL_GL_POINT_SPRITE_COORD_ORIGIN,
LOCAL_GL_LOWER_LEFT);
}
#endif
if (gl->IsSupported(gl::GLFeature::seamless_cube_map_opt_in)) {
gl->fEnable(LOCAL_GL_TEXTURE_CUBE_MAP_SEAMLESS);
}
// Check the shader validator pref
mBypassShaderValidation = gfxPrefs::WebGLBypassShaderValidator();
// initialize shader translator
if (!ShInitialize()) {
GenerateWarning("GLSL translator initialization failed!");
return false;
}
// Mesa can only be detected with the GL_VERSION string, of the form
// "2.1 Mesa 7.11.0"
const char* versionStr = (const char*)(gl->fGetString(LOCAL_GL_VERSION));
mIsMesa = strstr(versionStr, "Mesa");
// Notice that the point of calling fGetError here is not only to check for
// errors, but also to reset the error flags so that a subsequent WebGL
// getError call will give the correct result.
error = gl->fGetError();
if (error != LOCAL_GL_NO_ERROR) {
GenerateWarning("GL error 0x%x occurred during WebGL context"
" initialization!", error);
return false;
}
if (IsWebGL2() &&
!InitWebGL2())
{
// Todo: Bug 898404: Only allow WebGL2 on GL>=3.0 on desktop GL.
return false;
}
// Default value for all disabled vertex attributes is [0, 0, 0, 1]
mVertexAttribType = MakeUnique<GLenum[]>(mGLMaxVertexAttribs);
for (int32_t index = 0; index < mGLMaxVertexAttribs; ++index) {
mVertexAttribType[index] = LOCAL_GL_FLOAT;
VertexAttrib4f(index, 0, 0, 0, 1);
}
mDefaultVertexArray = WebGLVertexArray::Create(this);
mDefaultVertexArray->mAttribs.SetLength(mGLMaxVertexAttribs);
mBoundVertexArray = mDefaultVertexArray;
// OpenGL core profiles remove the default VAO object from version
// 4.0.0. We create a default VAO for all core profiles,
// regardless of version.
//
// GL Spec 4.0.0:
// (https://www.opengl.org/registry/doc/glspec40.core.20100311.pdf)
// in Section E.2.2 "Removed Features", pg 397: "[...] The default
// vertex array object (the name zero) is also deprecated. [...]"
if (gl->IsCoreProfile()) {
MakeContextCurrent();
mDefaultVertexArray->GenVertexArray();
mDefaultVertexArray->BindVertexArray();
}
mPixelStore_FlipY = false;
mPixelStore_PremultiplyAlpha = false;
mPixelStore_ColorspaceConversion = BROWSER_DEFAULT_WEBGL;
// GLES 3.0.4, p259:
mPixelStore_UnpackImageHeight = 0;
mPixelStore_UnpackSkipImages = 0;
mPixelStore_UnpackRowLength = 0;
mPixelStore_UnpackSkipRows = 0;
mPixelStore_UnpackSkipPixels = 0;
mPixelStore_UnpackAlignment = 4;
mPixelStore_PackRowLength = 0;
mPixelStore_PackSkipRows = 0;
mPixelStore_PackSkipPixels = 0;
mPixelStore_PackAlignment = 4;
return true;
}
int C_DECL main(int argc, char* argv[])
{
ProcessArguments(argc, argv);
if (Options & EOptionDumpConfig) {
printf("%s", DefaultConfig);
if (Worklist.empty())
return ESuccess;
}
if (Options & EOptionDumpVersions) {
printf("Glslang Version: %s %s\n", GLSLANG_REVISION, GLSLANG_DATE);
printf("ESSL Version: %s\n", glslang::GetEsslVersionString());
printf("GLSL Version: %s\n", glslang::GetGlslVersionString());
std::string spirvVersion;
glslang::GetSpirvVersion(spirvVersion);
printf("SPIR-V Version %s\n", spirvVersion.c_str());
printf("GLSL.std.450 Version %d, Revision %d\n", GLSLstd450Version, GLSLstd450Revision);
if (Worklist.empty())
return ESuccess;
}
if (Worklist.empty()) {
usage();
}
ProcessConfigFile();
//
// Two modes:
// 1) linking all arguments together, single-threaded, new C++ interface
// 2) independent arguments, can be tackled by multiple asynchronous threads, for testing thread safety, using the old handle interface
//
if (Options & EOptionLinkProgram ||
Options & EOptionOutputPreprocessed) {
glslang::InitializeProcess();
CompileAndLinkShaders();
glslang::FinalizeProcess();
} else {
ShInitialize();
bool printShaderNames = Worklist.size() > 1;
if (Options & EOptionMultiThreaded) {
const int NumThreads = 16;
void* threads[NumThreads];
for (int t = 0; t < NumThreads; ++t) {
threads[t] = glslang::OS_CreateThread(&CompileShaders);
if (! threads[t]) {
printf("Failed to create thread\n");
return EFailThreadCreate;
}
}
glslang::OS_WaitForAllThreads(threads, NumThreads);
} else
CompileShaders(0);
// Print out all the resulting infologs
for (int w = 0; w < NumWorkItems; ++w) {
if (Work[w]) {
if (printShaderNames)
PutsIfNonEmpty(Work[w]->name.c_str());
PutsIfNonEmpty(Work[w]->results.c_str());
delete Work[w];
}
}
ShFinalize();
}
if (CompileFailed)
return EFailCompile;
if (LinkFailed)
return EFailLink;
return 0;
}
int main(int argc, char *argv[])
{
TFailCode failCode = ESuccess;
int compileOptions = 0;
int numCompiles = 0;
ShHandle vertexCompiler = 0;
ShHandle fragmentCompiler = 0;
ShShaderSpec spec = SH_GLES2_SPEC;
ShShaderOutput output = SH_ESSL_OUTPUT;
ShInitialize();
ShBuiltInResources resources;
GenerateResources(&resources);
argc--;
argv++;
for (; (argc >= 1) && (failCode == ESuccess); argc--, argv++)
{
if (argv[0][0] == '-')
{
switch (argv[0][1])
{
case 'i': compileOptions |= SH_INTERMEDIATE_TREE; break;
case 'o': compileOptions |= SH_OBJECT_CODE; break;
case 'u': compileOptions |= SH_VARIABLES; break;
case 'l': compileOptions |= SH_UNROLL_FOR_LOOP_WITH_INTEGER_INDEX; break;
case 'e': compileOptions |= SH_EMULATE_BUILT_IN_FUNCTIONS; break;
case 'd': compileOptions |= SH_DEPENDENCY_GRAPH; break;
case 't': compileOptions |= SH_TIMING_RESTRICTIONS; break;
case 'p': resources.WEBGL_debug_shader_precision = 1; break;
case 's':
if (argv[0][2] == '=')
{
switch (argv[0][3])
{
case 'e':
if (argv[0][4] == '3')
{
spec = SH_GLES3_SPEC;
}
else
{
spec = SH_GLES2_SPEC;
}
break;
case 'w':
if (argv[0][4] == '2')
{
spec = SH_WEBGL2_SPEC;
}
else
{
spec = SH_WEBGL_SPEC;
}
break;
case 'c': spec = SH_CSS_SHADERS_SPEC; break;
default: failCode = EFailUsage;
}
}
else
{
failCode = EFailUsage;
}
break;
case 'b':
if (argv[0][2] == '=')
{
switch (argv[0][3])
{
case 'e': output = SH_ESSL_OUTPUT; break;
case 'g': output = SH_GLSL_OUTPUT; break;
case 'h':
if (argv[0][4] == '1' && argv[0][5] == '1')
{
output = SH_HLSL11_OUTPUT;
}
else
{
output = SH_HLSL9_OUTPUT;
}
break;
default: failCode = EFailUsage;
}
}
else
{
failCode = EFailUsage;
}
break;
case 'x':
if (argv[0][2] == '=')
{
switch (argv[0][3])
{
case 'i': resources.OES_EGL_image_external = 1; break;
case 'd': resources.OES_standard_derivatives = 1; break;
case 'r': resources.ARB_texture_rectangle = 1; break;
case 'l': resources.EXT_shader_texture_lod = 1; break;
case 'f': resources.EXT_shader_framebuffer_fetch = 1; break;
case 'n': resources.NV_shader_framebuffer_fetch = 1; break;
case 'a': resources.ARM_shader_framebuffer_fetch = 1; break;
default: failCode = EFailUsage;
}
}
else
{
failCode = EFailUsage;
}
break;
default: failCode = EFailUsage;
}
}
else
{
ShHandle compiler = 0;
switch (FindShaderType(argv[0]))
{
case GL_VERTEX_SHADER:
if (vertexCompiler == 0)
{
vertexCompiler = ShConstructCompiler(
GL_VERTEX_SHADER, spec, output, &resources);
}
compiler = vertexCompiler;
break;
case GL_FRAGMENT_SHADER:
if (fragmentCompiler == 0)
{
fragmentCompiler = ShConstructCompiler(
GL_FRAGMENT_SHADER, spec, output, &resources);
}
compiler = fragmentCompiler;
break;
default: break;
}
if (compiler)
{
bool compiled = CompileFile(argv[0], compiler, compileOptions);
LogMsg("BEGIN", "COMPILER", numCompiles, "INFO LOG");
std::string log = ShGetInfoLog(compiler);
puts(log.c_str());
LogMsg("END", "COMPILER", numCompiles, "INFO LOG");
printf("\n\n");
if (compiled && (compileOptions & SH_OBJECT_CODE))
{
LogMsg("BEGIN", "COMPILER", numCompiles, "OBJ CODE");
std::string code = ShGetObjectCode(compiler);
puts(code.c_str());
LogMsg("END", "COMPILER", numCompiles, "OBJ CODE");
printf("\n\n");
}
if (compiled && (compileOptions & SH_VARIABLES))
{
LogMsg("BEGIN", "COMPILER", numCompiles, "VARIABLES");
PrintActiveVariables(compiler);
LogMsg("END", "COMPILER", numCompiles, "VARIABLES");
printf("\n\n");
}
if (!compiled)
failCode = EFailCompile;
++numCompiles;
}
else
{
failCode = EFailCompilerCreate;
}
}
}
if ((vertexCompiler == 0) && (fragmentCompiler == 0))
failCode = EFailUsage;
if (failCode == EFailUsage)
usage();
if (vertexCompiler)
ShDestruct(vertexCompiler);
if (fragmentCompiler)
ShDestruct(fragmentCompiler);
ShFinalize();
return failCode;
}
bool InitializeProcess()
{
return ShInitialize() != 0;
}
