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Enable shader cache for ES2 when GL_OES_get_program_binary is present

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Change-Id: I4fb71471a7dd22441def1eb837857d245c3e3c5a
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
This commit is contained in:
Michael Brasser 2019-06-04 14:42:31 -05:00
parent e4c1feae5c
commit 65cdd0f366
3 changed files with 42 additions and 3 deletions
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31
src/gui/opengl/qopenglprogrambinarycache.cpp
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@ -168,12 +168,19 @@ bool QOpenGLProgramBinaryCache::verifyHeader(const QByteArray &buf) const
bool QOpenGLProgramBinaryCache::setProgramBinary(uint programId, uint blobFormat, const void *p, uint blobSize)
{
QOpenGLExtraFunctions *funcs = QOpenGLContext::currentContext()->extraFunctions();
QOpenGLContext *context = QOpenGLContext::currentContext();
QOpenGLExtraFunctions *funcs = context->extraFunctions();
while (true) {
GLenum error = funcs->glGetError();
if (error == GL_NO_ERROR || error == GL_CONTEXT_LOST)
break;
}
#if defined(QT_OPENGL_ES_2)
if (context->isOpenGLES() && context->format().majorVersion() < 3) {
initializeProgramBinaryOES(context);
programBinaryOES(programId, blobFormat, p, blobSize);
} else
#endif
funcs->glProgramBinary(programId, blobFormat, p, blobSize);
GLenum err = funcs->glGetError();
@ -347,7 +354,8 @@ void QOpenGLProgramBinaryCache::save(const QByteArray &cacheKey, uint programId)
GLEnvInfo info;
QOpenGLExtraFunctions *funcs = QOpenGLContext::currentContext()->extraFunctions();
QOpenGLContext *context = QOpenGLContext::currentContext();
QOpenGLExtraFunctions *funcs = context->extraFunctions();
GLint blobSize = 0;
while (true) {
GLenum error = funcs->glGetError();
@ -390,6 +398,12 @@ void QOpenGLProgramBinaryCache::save(const QByteArray &cacheKey, uint programId)
*p++ = 0;
GLint outSize = 0;
#if defined(QT_OPENGL_ES_2)
if (context->isOpenGLES() && context->format().majorVersion() < 3) {
initializeProgramBinaryOES(context);
getProgramBinaryOES(programId, blobSize, &outSize, &blobFormat, p);
} else
#endif
funcs->glGetProgramBinary(programId, blobSize, &outSize, &blobFormat, p);
if (blobSize != outSize) {
qCDebug(DBG_SHADER_CACHE, "glGetProgramBinary returned size %d instead of %d", outSize, blobSize);
@ -408,4 +422,17 @@ void QOpenGLProgramBinaryCache::save(const QByteArray &cacheKey, uint programId)
}
}
#if defined(QT_OPENGL_ES_2)
void QOpenGLProgramBinaryCache::initializeProgramBinaryOES(QOpenGLContext *context)
{
if (m_programBinaryOESInitialized)
return;
m_programBinaryOESInitialized = true;
Q_ASSERT(context);
getProgramBinaryOES = (void (QOPENGLF_APIENTRYP)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary))context->getProcAddress("glGetProgramBinaryOES");
programBinaryOES = (void (QOPENGLF_APIENTRYP)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLint length))context->getProcAddress("glProgramBinaryOES");
}
#endif
QT_END_NAMESPACE

6
src/gui/opengl/qopenglprogrambinarycache_p.h
View File

@ -93,6 +93,12 @@ private:
uint format;
};
QCache<QByteArray, MemCacheEntry> m_memCache;
#if defined(QT_OPENGL_ES_2)
void (QOPENGLF_APIENTRYP programBinaryOES)(GLuint program, GLenum binaryFormat, const GLvoid *binary, GLsizei length);
void (QOPENGLF_APIENTRYP getProgramBinaryOES)(GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, GLvoid *binary);
void initializeProgramBinaryOES(QOpenGLContext *context);
bool m_programBinaryOESInitialized = false;
#endif
};
QT_END_NAMESPACE

8
src/gui/opengl/qopenglshaderprogram.cpp
View File

@ -3753,8 +3753,14 @@ QOpenGLProgramBinarySupportCheck::QOpenGLProgramBinarySupportCheck(QOpenGLContex
if (ctx) {
if (ctx->isOpenGLES()) {
qCDebug(DBG_SHADER_CACHE, "OpenGL ES v%d context", ctx->format().majorVersion());
if (ctx->format().majorVersion() >= 3)
if (ctx->format().majorVersion() >= 3) {
m_supported = true;
} else {
const bool hasExt = ctx->hasExtension("GL_OES_get_program_binary");
qCDebug(DBG_SHADER_CACHE, "GL_OES_get_program_binary support = %d", hasExt);
if (hasExt)
m_supported = true;
}
} else {
const bool hasExt = ctx->hasExtension("GL_ARB_get_program_binary");
qCDebug(DBG_SHADER_CACHE, "GL_ARB_get_program_binary support = %d", hasExt);