{
namespace Adaptor
{
-namespace
-{
-static constexpr int32_t INITIAL_GLES_VERSION = 30;
-static constexpr int32_t GLES_VERSION_SUPPORT_BLEND_EQUATION_ADVANCED = 32;
-
-static constexpr int32_t MINIMUM_GLES_VERSION_GET_MAXIMUM_MULTISAMPLES_TO_TEXTURE = 30;
-
-static constexpr const char* LEGACY_SHADING_LANGUAGE_VERSION = "100";
-
-static constexpr const char* DEFAULT_SAMPLER_TYPE = "sampler2D";
-
-static constexpr const char* FRAGMENT_SHADER_ADVANCED_BLEND_EQUATION_PREFIX =
- "#ifdef GL_KHR_blend_equation_advanced\n"
- "#extension GL_KHR_blend_equation_advanced : enable\n"
- "#endif\n"
-
- "#if defined(GL_KHR_blend_equation_advanced) || __VERSION__>=320\n"
- " layout(blend_support_all_equations) out;\n"
- "#endif\n";
-
-static constexpr const char* FRAGMENT_SHADER_OUTPUT_COLOR_STRING =
- "out mediump vec4 fragColor;\n";
-
-static constexpr const char* OES_EGL_IMAGE_EXTERNAL_STRING = "#extension GL_OES_EGL_image_external:require\n";
-
-static constexpr const char* OES_EGL_IMAGE_EXTERNAL_STRING_ESSL3 = "#extension GL_OES_EGL_image_external_essl3:require\n";
-
-// Threshold time in miliseconds
-constexpr auto PERFORMANCE_LOG_THRESHOLD_TIME_ENV = "DALI_EGL_PERFORMANCE_LOG_THRESHOLD_TIME";
-
-uint32_t GetPerformanceLogThresholdTime()
-{
- auto timeString = Dali::EnvironmentVariable::GetEnvironmentVariable(PERFORMANCE_LOG_THRESHOLD_TIME_ENV);
- uint32_t time = timeString ? static_cast<uint32_t>(std::atoi(timeString)) : 0u;
- return time;
-}
-
-} // namespace
-
/**
* GlImplementation is a concrete implementation for GlAbstraction.
* The class provides an OpenGL-ES 2.0 or 3.0 implementation.
class GlImplementation : public Dali::Integration::GlAbstraction
{
public:
- GlImplementation()
- : mGlExtensionSupportedCacheList(),
- mContextCreatedWaitCondition(),
- mMaxTextureSize(0),
- mMaxTextureSamples(0),
- mVertexShaderPrefix(""),
- mGlesVersion(INITIAL_GLES_VERSION),
- mShadingLanguageVersion(100),
- mShadingLanguageVersionCached(false),
- mIsSurfacelessContextSupported(false),
- mIsContextCreated(false)
- {
- mImpl.reset(new Gles3Implementation());
- }
+ GlImplementation();
virtual ~GlImplementation()
{
/* Do nothing in main implementation */
}
- void ContextCreated()
- {
- glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
-
- // Since gles 2.0 didn't return well for GL_MAJOR_VERSION and GL_MINOR_VERSION,
- // Only change gles version for the device that support above gles 3.0.
- if(mGlesVersion >= INITIAL_GLES_VERSION)
- {
- GLint majorVersion, minorVersion;
- glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
- glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
- mGlesVersion = majorVersion * 10 + minorVersion;
- }
-
- if(mGlesVersion >= GLES_VERSION_SUPPORT_BLEND_EQUATION_ADVANCED)
- {
- SetIsAdvancedBlendEquationSupported(true);
- }
-
- if(mGlExtensionSupportedCacheList.NeedFullCheck())
- {
- // fully check gl extensions if we miss some extension supported
- mGlExtensionSupportedCacheList.EnsureGlExtensionSupportedCheck();
- }
-
- if(IsMultisampledRenderToTextureSupported())
- {
- mMaxTextureSamples = 0;
-
- if(mGlesVersion >= MINIMUM_GLES_VERSION_GET_MAXIMUM_MULTISAMPLES_TO_TEXTURE)
- {
- // Try to get maximum FBO MSAA sampling level from GL_RENDERBUFFER first.
- // If false, than ask again to GL_MAX_SAMPLES_EXT.
- GetInternalformativ(GL_RENDERBUFFER, GL_RGBA8, GL_SAMPLES, 1, &mMaxTextureSamples);
- }
- if(mMaxTextureSamples == 0)
- {
- glGetIntegerv(GL_MAX_SAMPLES_EXT, &mMaxTextureSamples);
- }
- }
-
- if(!mShadingLanguageVersionCached)
- {
- std::istringstream shadingLanguageVersionStream(reinterpret_cast<const char*>(glGetString(GL_SHADING_LANGUAGE_VERSION)));
- std::string token;
- uint32_t tokenCount = 0;
- while(std::getline(shadingLanguageVersionStream, token, ' '))
- {
- if(tokenCount == 3 && token == "ES")
- {
- std::getline(shadingLanguageVersionStream, token, '.');
- mShadingLanguageVersion = std::atoi(token.c_str());
- mShadingLanguageVersion *= 100;
- std::getline(shadingLanguageVersionStream, token, '.');
- mShadingLanguageVersion += std::atoi(token.c_str());
- break;
- }
- tokenCount++;
- }
- }
-
- mLogThreshold = GetPerformanceLogThresholdTime();
- mLogEnabled = mLogThreshold > 0 ? true : false;
-
- {
- ConditionalWait::ScopedLock lock(mContextCreatedWaitCondition);
- mIsContextCreated = true;
- mContextCreatedWaitCondition.Notify(lock);
- }
- }
+ void ContextCreated();
void SetGlesVersion(const int32_t glesVersion)
{
mGlExtensionSupportedCacheList.SetSupported(GlExtensionCache::GlExtensionCheckerType::BLEND_EQUATION_ADVANCED, isSupported);
}
- bool IsAdvancedBlendEquationSupported()
+ bool IsAdvancedBlendEquationSupported() override
{
ConditionalWait::ScopedLock lock(mContextCreatedWaitCondition);
mGlExtensionSupportedCacheList.SetSupported(GlExtensionCache::GlExtensionCheckerType::MULTISAMPLED_RENDER_TO_TEXTURE, isSupported);
}
- bool IsMultisampledRenderToTextureSupported()
+ bool IsMultisampledRenderToTextureSupported() override
{
ConditionalWait::ScopedLock lock(mContextCreatedWaitCondition);
return mGlExtensionSupportedCacheList.GetSupported(type);
}
- bool IsBlendEquationSupported(DevelBlendEquation::Type blendEquation)
+ bool IsBlendEquationSupported(DevelBlendEquation::Type blendEquation) override
{
switch(blendEquation)
{
return false;
}
- std::string GetShaderVersionPrefix()
+ std::string GetShaderVersionPrefix() override
{
if(mShaderVersionPrefix == "")
{
return mShaderVersionPrefix;
}
- std::string GetVertexShaderPrefix()
+ std::string GetVertexShaderPrefix() override
{
if(mVertexShaderPrefix == "")
{
return mVertexShaderPrefix;
}
- std::string GetFragmentShaderPrefix()
- {
- if(mFragmentShaderPrefix == "")
- {
- mFragmentShaderPrefix = GetShaderVersionPrefix();
-
- if(GetShadingLanguageVersion() < 300)
- {
- mFragmentShaderPrefix += "#define INPUT varying\n";
- mFragmentShaderPrefix += "#define OUT_COLOR gl_FragColor\n";
- mFragmentShaderPrefix += "#define TEXTURE texture2D\n";
- }
- else
- {
- mFragmentShaderPrefix += "#define INPUT in\n";
- mFragmentShaderPrefix += "#define OUT_COLOR fragColor\n";
- mFragmentShaderPrefix += "#define TEXTURE texture\n";
-
- if(IsAdvancedBlendEquationSupported())
- {
- mFragmentShaderPrefix += FRAGMENT_SHADER_ADVANCED_BLEND_EQUATION_PREFIX;
- }
-
- mFragmentShaderPrefix += FRAGMENT_SHADER_OUTPUT_COLOR_STRING;
- }
- }
- return mFragmentShaderPrefix;
- }
+ std::string GetFragmentShaderPrefix() override;
bool TextureRequiresConverting(const GLenum imageGlFormat, const GLenum textureGlFormat, const bool isSubImage) const override
{
return mShadingLanguageVersion;
}
- bool ApplyNativeFragmentShader(std::string& shader, const char* customSamplerType)
- {
- bool modified = false;
- std::string versionString = "#version";
- size_t versionPosition = shader.find(versionString);
- if(versionPosition != std::string::npos)
- {
- std::string extensionString;
- size_t shadingLanguageVersionPosition = shader.find_first_not_of(" \t", versionPosition + versionString.length());
- if(shadingLanguageVersionPosition != std::string::npos &&
- shader.substr(shadingLanguageVersionPosition, 3) == LEGACY_SHADING_LANGUAGE_VERSION)
- {
- extensionString = OES_EGL_IMAGE_EXTERNAL_STRING;
- }
- else
- {
- extensionString = OES_EGL_IMAGE_EXTERNAL_STRING_ESSL3;
- }
-
- if(shader.find(extensionString) == std::string::npos)
- {
- modified = true;
- size_t extensionPosition = shader.find_first_of("\n", versionPosition) + 1;
- shader.insert(extensionPosition, extensionString);
- }
- }
- else
- {
- if(shader.find(OES_EGL_IMAGE_EXTERNAL_STRING) == std::string::npos)
- {
- modified = true;
- shader = OES_EGL_IMAGE_EXTERNAL_STRING + shader;
- }
- }
-
- if(shader.find(customSamplerType) == std::string::npos)
- {
- size_t pos = shader.find(DEFAULT_SAMPLER_TYPE);
- if(pos != std::string::npos)
- {
- modified = true;
- shader.replace(pos, strlen(DEFAULT_SAMPLER_TYPE), customSamplerType);
- }
- }
-
- return modified;
- }
+ bool ApplyNativeFragmentShader(std::string& shader, const char* customSamplerType);
/* OpenGL ES 2.0 */
projects / platform / core / uifw / dali-adaptor.git / blobdiff