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#include "shaders/program_manager.hpp"
#include "shaders/gl_program_pool.hpp"
#include "drape/glfunctions.hpp"
#include "drape/support_manager.hpp"
#include "base/logging.hpp"
#include "std/target_os.hpp"
#include "gl_program_params.hpp"
#include <algorithm>
namespace gpu
{
void ProgramManager::Init(dp::ApiVersion apiVersion)
{
if (apiVersion == dp::ApiVersion::OpenGLES2 || apiVersion == dp::ApiVersion::OpenGLES3)
{
std::string globalDefines;
// This feature is not supported on some Android devices (especially on Android 4.x version).
// Since we can't predict on which devices it'll work fine, we have to turn off for all devices.
#if !defined(OMIM_OS_ANDROID)
if (GLFunctions::glGetInteger(gl_const::GLMaxVertexTextures) > 0)
{
LOG(LINFO, ("VTF enabled"));
globalDefines.append("#define ENABLE_VTF\n"); // VTF == Vertex Texture Fetch
}
#endif
if (dp::SupportManager::Instance().IsSamsungGoogleNexus())
globalDefines.append("#define SAMSUNG_GOOGLE_NEXUS\n");
if (apiVersion == dp::ApiVersion::OpenGLES3)
globalDefines.append("#define GLES3\n");
m_pool = make_unique_dp<GLProgramPool>(apiVersion);
ref_ptr<GLProgramPool> pool = make_ref(m_pool);
pool->SetDefines(globalDefines);
m_paramsSetter = make_unique_dp<GLProgramParamsSetter>();
}
else
{
CHECK(false, ("Unsupported API version"));
}
}
ref_ptr<dp::GpuProgram> ProgramManager::GetProgram(Program program)
{
auto & programPtr = m_programs[static_cast<size_t>(program)];
if (programPtr)
return make_ref(programPtr);
programPtr = m_pool->Get(program);
return make_ref(programPtr);
}
ref_ptr<ProgramParamsSetter> ProgramManager::GetParamsSetter() const
{
return make_ref(m_paramsSetter);
}
} // namespace gpu
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