EGLBoolean EGLAPIENTRY DestroyContext(EGLDisplay dpy, EGLContext ctx)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLContext ctx = 0x%0.8p)", dpy, ctx);
Display *display = static_cast<Display*>(dpy);
gl::Context *context = static_cast<gl::Context*>(ctx);
Error error = ValidateContext(display, context);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
if (ctx == EGL_NO_CONTEXT)
{
SetGlobalError(Error(EGL_BAD_CONTEXT));
return EGL_FALSE;
}
if (context == GetGlobalContext())
{
SetGlobalDisplay(NULL);
SetGlobalContext(NULL);
}
display->destroyContext(context);
SetGlobalError(Error(EGL_SUCCESS));
return EGL_TRUE;
}
Error ValidateStreamConsumerAcquireKHR(const Display *display,
gl::Context *context,
const Stream *stream)
{
ANGLE_TRY(ValidateDisplay(display));
const DisplayExtensions &displayExtensions = display->getExtensions();
if (!displayExtensions.streamConsumerGLTexture)
{
return Error(EGL_BAD_ACCESS, "Stream consumer extension not active");
}
if (stream == EGL_NO_STREAM_KHR || !display->isValidStream(stream))
{
return Error(EGL_BAD_STREAM_KHR, "Invalid stream");
}
if (!context)
{
return Error(EGL_BAD_ACCESS, "No GL context current to calling thread.");
}
ANGLE_TRY(ValidateContext(display, context));
if (!stream->isConsumerBoundToContext(context))
{
return Error(EGL_BAD_ACCESS, "Current GL context not associated with stream consumer");
}
if (stream->getConsumerType() != Stream::ConsumerType::GLTextureRGB &&
stream->getConsumerType() != Stream::ConsumerType::GLTextureYUV)
{
return Error(EGL_BAD_ACCESS, "Invalid stream consumer type");
}
// Note: technically EGL_STREAM_STATE_EMPTY_KHR is a valid state when the timeout is non-zero.
// However, the timeout is effectively ignored since it has no useful functionality with the
// current producers that are implemented, so we don't allow that state
if (stream->getState() != EGL_STREAM_STATE_NEW_FRAME_AVAILABLE_KHR &&
stream->getState() != EGL_STREAM_STATE_OLD_FRAME_AVAILABLE_KHR)
{
return Error(EGL_BAD_STATE_KHR, "Invalid stream state");
}
return Error(EGL_SUCCESS);
}
Error ValidateStreamConsumerReleaseKHR(const Display *display,
gl::Context *context,
const Stream *stream)
{
ANGLE_TRY(ValidateDisplay(display));
const DisplayExtensions &displayExtensions = display->getExtensions();
if (!displayExtensions.streamConsumerGLTexture)
{
return Error(EGL_BAD_ACCESS, "Stream consumer extension not active");
}
if (stream == EGL_NO_STREAM_KHR || !display->isValidStream(stream))
{
return Error(EGL_BAD_STREAM_KHR, "Invalid stream");
}
if (!context)
{
return Error(EGL_BAD_ACCESS, "No GL context current to calling thread.");
}
ANGLE_TRY(ValidateContext(display, context));
if (!stream->isConsumerBoundToContext(context))
{
return Error(EGL_BAD_ACCESS, "Current GL context not associated with stream consumer");
}
if (stream->getConsumerType() != Stream::ConsumerType::GLTextureRGB &&
stream->getConsumerType() != Stream::ConsumerType::GLTextureYUV)
{
return Error(EGL_BAD_ACCESS, "Invalid stream consumer type");
}
if (stream->getState() != EGL_STREAM_STATE_NEW_FRAME_AVAILABLE_KHR &&
stream->getState() != EGL_STREAM_STATE_OLD_FRAME_AVAILABLE_KHR)
{
return Error(EGL_BAD_STATE_KHR, "Invalid stream state");
}
return Error(EGL_SUCCESS);
}
EGLBoolean EGLAPIENTRY QueryContext(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLContext ctx = 0x%0.8p, EGLint attribute = %d, EGLint *value = 0x%0.8p)",
dpy, ctx, attribute, value);
Display *display = static_cast<Display*>(dpy);
gl::Context *context = static_cast<gl::Context*>(ctx);
Error error = ValidateContext(display, context);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
switch (attribute)
{
case EGL_CONFIG_ID:
*value = context->getConfig()->configID;
break;
case EGL_CONTEXT_CLIENT_TYPE:
*value = context->getClientType();
break;
case EGL_CONTEXT_CLIENT_VERSION:
*value = context->getClientVersion();
break;
case EGL_RENDER_BUFFER:
*value = context->getRenderBuffer();
break;
default:
SetGlobalError(Error(EGL_BAD_ATTRIBUTE));
return EGL_FALSE;
}
SetGlobalError(Error(EGL_SUCCESS));
return EGL_TRUE;
}
Error ValidateStreamConsumerGLTextureExternalKHR(const Display *display,
gl::Context *context,
const Stream *stream)
{
ANGLE_TRY(ValidateDisplay(display));
ANGLE_TRY(ValidateContext(display, context));
const DisplayExtensions &displayExtensions = display->getExtensions();
if (!displayExtensions.streamConsumerGLTexture)
{
return Error(EGL_BAD_ACCESS, "Stream consumer extension not active");
}
if (!context->getExtensions().eglStreamConsumerExternal)
{
return Error(EGL_BAD_ACCESS, "EGL stream consumer external GL extension not enabled");
}
if (stream == EGL_NO_STREAM_KHR || !display->isValidStream(stream))
{
return Error(EGL_BAD_STREAM_KHR, "Invalid stream");
}
if (stream->getState() != EGL_STREAM_STATE_CREATED_KHR)
{
return Error(EGL_BAD_STATE_KHR, "Invalid stream state");
}
// Lookup the texture and ensure it is correct
gl::Texture *texture = context->getGLState().getTargetTexture(GL_TEXTURE_EXTERNAL_OES);
if (texture == nullptr || texture->getId() == 0)
{
return Error(EGL_BAD_ACCESS, "No external texture bound");
}
return Error(EGL_SUCCESS);
}
EGLBoolean EGLAPIENTRY DestroyContext(EGLDisplay dpy, EGLContext ctx)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLContext ctx = 0x%0.8p)", dpy, ctx);
Thread *thread = GetCurrentThread();
Display *display = static_cast<Display *>(dpy);
gl::Context *context = static_cast<gl::Context *>(ctx);
Error error = ValidateContext(display, context);
if (error.isError())
{
thread->setError(error);
return EGL_FALSE;
}
if (ctx == EGL_NO_CONTEXT)
{
thread->setError(EglBadContext());
return EGL_FALSE;
}
if (context == thread->getContext())
{
thread->setCurrent(nullptr);
}
error = display->destroyContext(context);
if (error.isError())
{
thread->setError(error);
return EGL_FALSE;
}
thread->setError(NoError());
return EGL_TRUE;
}
EGLBoolean EGLAPIENTRY MakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLSurface draw = 0x%0.8p, EGLSurface read = 0x%0.8p, EGLContext ctx = 0x%0.8p)",
dpy, draw, read, ctx);
Display *display = static_cast<Display*>(dpy);
gl::Context *context = static_cast<gl::Context*>(ctx);
// If ctx is EGL_NO_CONTEXT and either draw or read are not EGL_NO_SURFACE, an EGL_BAD_MATCH
// error is generated.
if (ctx == EGL_NO_CONTEXT && (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE))
{
SetGlobalError(Error(EGL_BAD_MATCH));
return EGL_FALSE;
}
if (ctx != EGL_NO_CONTEXT && draw == EGL_NO_SURFACE && read == EGL_NO_SURFACE)
{
SetGlobalError(Error(EGL_BAD_MATCH));
return EGL_FALSE;
}
// If either of draw or read is a valid surface and the other is EGL_NO_SURFACE, an
// EGL_BAD_MATCH error is generated.
if ((read == EGL_NO_SURFACE) != (draw == EGL_NO_SURFACE))
{
SetGlobalError(Error(
EGL_BAD_MATCH, "read and draw must both be valid surfaces, or both be EGL_NO_SURFACE"));
return EGL_FALSE;
}
if (dpy == EGL_NO_DISPLAY || !Display::isValidDisplay(display))
{
SetGlobalError(Error(EGL_BAD_DISPLAY, "'dpy' not a valid EGLDisplay handle"));
return EGL_FALSE;
}
// EGL 1.5 spec: dpy can be uninitialized if all other parameters are null
if (!display->isInitialized() && (ctx != EGL_NO_CONTEXT || draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE))
{
SetGlobalError(Error(EGL_NOT_INITIALIZED, "'dpy' not initialized"));
return EGL_FALSE;
}
if (ctx != EGL_NO_CONTEXT)
{
Error error = ValidateContext(display, context);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (display->isInitialized())
{
if (display->testDeviceLost())
{
display->notifyDeviceLost();
return EGL_FALSE;
}
if (display->isDeviceLost())
{
SetGlobalError(Error(EGL_CONTEXT_LOST));
return EGL_FALSE;
}
}
Surface *drawSurface = static_cast<Surface*>(draw);
if (draw != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, drawSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
Surface *readSurface = static_cast<Surface*>(read);
if (read != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, readSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (readSurface)
{
Error readCompatError = ValidateCompatibleConfigs(readSurface->getConfig(), context->getConfig(), readSurface->getType());
if (readCompatError.isError())
{
SetGlobalError(readCompatError);
return EGL_FALSE;
}
}
if (draw != read)
{
UNIMPLEMENTED(); // FIXME
if (drawSurface)
{
Error drawCompatError = ValidateCompatibleConfigs(drawSurface->getConfig(), context->getConfig(), drawSurface->getType());
if (drawCompatError.isError())
{
SetGlobalError(drawCompatError);
return EGL_FALSE;
}
}
}
Error makeCurrentError = display->makeCurrent(drawSurface, readSurface, context);
if (makeCurrentError.isError())
{
SetGlobalError(makeCurrentError);
return EGL_FALSE;
}
gl::Context *previousContext = GetGlobalContext();
SetGlobalDisplay(display);
SetGlobalDrawSurface(drawSurface);
SetGlobalReadSurface(readSurface);
SetGlobalContext(context);
// Release the surface from the previously-current context, to allow
// destroyed surfaces to delete themselves.
if (previousContext != nullptr && context != previousContext)
{
previousContext->releaseSurface();
}
SetGlobalError(Error(EGL_SUCCESS));
return EGL_TRUE;
}
Error ValidateCreateImageKHR(const Display *display,
gl::Context *context,
EGLenum target,
EGLClientBuffer buffer,
const AttributeMap &attributes)
{
Error error = ValidateContext(display, context);
if (error.isError())
{
return error;
}
const DisplayExtensions &displayExtensions = display->getExtensions();
if (!displayExtensions.imageBase && !displayExtensions.image)
{
// It is out of spec what happens when calling an extension function when the extension is
// not available.
// EGL_BAD_DISPLAY seems like a reasonable error.
return Error(EGL_BAD_DISPLAY, "EGL_KHR_image not supported.");
}
// TODO(geofflang): Complete validation from EGL_KHR_image_base:
// If the resource specified by <dpy>, <ctx>, <target>, <buffer> and <attrib_list> is itself an
// EGLImage sibling, the error EGL_BAD_ACCESS is generated.
for (AttributeMap::const_iterator attributeIter = attributes.begin();
attributeIter != attributes.end(); attributeIter++)
{
EGLint attribute = attributeIter->first;
EGLint value = attributeIter->second;
switch (attribute)
{
case EGL_IMAGE_PRESERVED_KHR:
switch (value)
{
case EGL_TRUE:
case EGL_FALSE:
break;
default:
return Error(EGL_BAD_PARAMETER,
"EGL_IMAGE_PRESERVED_KHR must be EGL_TRUE or EGL_FALSE.");
}
break;
case EGL_GL_TEXTURE_LEVEL_KHR:
if (!displayExtensions.glTexture2DImage &&
!displayExtensions.glTextureCubemapImage && !displayExtensions.glTexture3DImage)
{
return Error(EGL_BAD_PARAMETER,
"EGL_GL_TEXTURE_LEVEL_KHR cannot be used without "
"KHR_gl_texture_*_image support.");
}
if (value < 0)
{
return Error(EGL_BAD_PARAMETER, "EGL_GL_TEXTURE_LEVEL_KHR cannot be negative.");
}
break;
case EGL_GL_TEXTURE_ZOFFSET_KHR:
if (!displayExtensions.glTexture3DImage)
{
return Error(EGL_BAD_PARAMETER,
"EGL_GL_TEXTURE_ZOFFSET_KHR cannot be used without "
"KHR_gl_texture_3D_image support.");
}
break;
default:
return Error(EGL_BAD_PARAMETER, "invalid attribute: 0x%X", attribute);
}
}
switch (target)
{
case EGL_GL_TEXTURE_2D_KHR:
{
if (!displayExtensions.glTexture2DImage)
{
return Error(EGL_BAD_PARAMETER, "KHR_gl_texture_2D_image not supported.");
}
if (buffer == 0)
{
return Error(EGL_BAD_PARAMETER,
"buffer cannot reference a 2D texture with the name 0.");
}
const gl::Texture *texture =
context->getTexture(egl_gl::EGLClientBufferToGLObjectHandle(buffer));
if (texture == nullptr || texture->getTarget() != GL_TEXTURE_2D)
{
return Error(EGL_BAD_PARAMETER, "target is not a 2D texture.");
}
if (texture->getBoundSurface() != nullptr)
{
return Error(EGL_BAD_ACCESS, "texture has a surface bound to it.");
}
EGLint level = attributes.get(EGL_GL_TEXTURE_LEVEL_KHR, 0);
if (texture->getWidth(GL_TEXTURE_2D, static_cast<size_t>(level)) == 0 ||
texture->getHeight(GL_TEXTURE_2D, static_cast<size_t>(level)) == 0)
{
return Error(EGL_BAD_PARAMETER,
"target 2D texture does not have a valid size at specified level.");
}
if (level > 0 && (!texture->isMipmapComplete() ||
static_cast<size_t>(level) >= texture->getMipCompleteLevels()))
{
return Error(EGL_BAD_PARAMETER, "texture must be complete if level is non-zero.");
}
if (level == 0 && !texture->isMipmapComplete() &&
TextureHasNonZeroMipLevelsSpecified(context, texture))
{
return Error(EGL_BAD_PARAMETER,
"if level is zero and the texture is incomplete, it must have no mip "
"levels specified except zero.");
}
}
break;
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
{
if (!displayExtensions.glTextureCubemapImage)
{
return Error(EGL_BAD_PARAMETER, "KHR_gl_texture_cubemap_image not supported.");
}
if (buffer == 0)
{
return Error(EGL_BAD_PARAMETER,
"buffer cannot reference a cubemap texture with the name 0.");
}
const gl::Texture *texture =
context->getTexture(egl_gl::EGLClientBufferToGLObjectHandle(buffer));
if (texture == nullptr || texture->getTarget() != GL_TEXTURE_CUBE_MAP)
{
return Error(EGL_BAD_PARAMETER, "target is not a cubemap texture.");
}
if (texture->getBoundSurface() != nullptr)
{
return Error(EGL_BAD_ACCESS, "texture has a surface bound to it.");
}
EGLint level = attributes.get(EGL_GL_TEXTURE_LEVEL_KHR, 0);
GLenum cubeMapFace = egl_gl::EGLCubeMapTargetToGLCubeMapTarget(target);
if (texture->getWidth(cubeMapFace, static_cast<size_t>(level)) == 0 ||
texture->getHeight(cubeMapFace, static_cast<size_t>(level)) == 0)
{
return Error(EGL_BAD_PARAMETER,
"target cubemap texture does not have a valid size at specified level "
"and face.");
}
if (level > 0 && (!texture->isMipmapComplete() ||
static_cast<size_t>(level) >= texture->getMipCompleteLevels()))
{
return Error(EGL_BAD_PARAMETER, "texture must be complete if level is non-zero.");
}
if (level == 0 && !texture->isMipmapComplete() &&
TextureHasNonZeroMipLevelsSpecified(context, texture))
{
return Error(EGL_BAD_PARAMETER,
"if level is zero and the texture is incomplete, it must have no mip "
"levels specified except zero.");
}
if (level == 0 && !texture->isMipmapComplete() &&
CubeTextureHasUnspecifiedLevel0Face(texture))
{
return Error(EGL_BAD_PARAMETER,
"if level is zero and the texture is incomplete, it must have all of "
"its faces specified at level zero.");
}
}
break;
case EGL_GL_TEXTURE_3D_KHR:
{
if (!displayExtensions.glTexture3DImage)
{
return Error(EGL_BAD_PARAMETER, "KHR_gl_texture_3D_image not supported.");
}
if (buffer == 0)
{
return Error(EGL_BAD_PARAMETER,
"buffer cannot reference a 3D texture with the name 0.");
}
const gl::Texture *texture =
context->getTexture(egl_gl::EGLClientBufferToGLObjectHandle(buffer));
if (texture == nullptr || texture->getTarget() != GL_TEXTURE_3D)
{
return Error(EGL_BAD_PARAMETER, "target is not a 3D texture.");
}
if (texture->getBoundSurface() != nullptr)
{
return Error(EGL_BAD_ACCESS, "texture has a surface bound to it.");
}
EGLint level = attributes.get(EGL_GL_TEXTURE_LEVEL_KHR, 0);
EGLint zOffset = attributes.get(EGL_GL_TEXTURE_ZOFFSET_KHR, 0);
if (texture->getWidth(GL_TEXTURE_3D, static_cast<size_t>(level)) == 0 ||
texture->getHeight(GL_TEXTURE_3D, static_cast<size_t>(level)) == 0 ||
texture->getDepth(GL_TEXTURE_3D, static_cast<size_t>(level)) == 0)
{
return Error(EGL_BAD_PARAMETER,
"target 3D texture does not have a valid size at specified level.");
}
if (static_cast<size_t>(zOffset) >=
texture->getDepth(GL_TEXTURE_3D, static_cast<size_t>(level)))
{
return Error(EGL_BAD_PARAMETER,
"target 3D texture does not have enough layers for the specified Z "
"offset at the specified level.");
}
if (level > 0 && (!texture->isMipmapComplete() ||
static_cast<size_t>(level) >= texture->getMipCompleteLevels()))
{
return Error(EGL_BAD_PARAMETER, "texture must be complete if level is non-zero.");
}
if (level == 0 && !texture->isMipmapComplete() &&
TextureHasNonZeroMipLevelsSpecified(context, texture))
{
return Error(EGL_BAD_PARAMETER,
"if level is zero and the texture is incomplete, it must have no mip "
"levels specified except zero.");
}
}
break;
case EGL_GL_RENDERBUFFER_KHR:
{
if (!displayExtensions.glRenderbufferImage)
{
return Error(EGL_BAD_PARAMETER, "KHR_gl_renderbuffer_image not supported.");
}
if (attributes.contains(EGL_GL_TEXTURE_LEVEL_KHR))
{
return Error(EGL_BAD_PARAMETER,
"EGL_GL_TEXTURE_LEVEL_KHR cannot be used in conjunction with a "
"renderbuffer target.");
}
if (buffer == 0)
{
return Error(EGL_BAD_PARAMETER,
"buffer cannot reference a renderbuffer with the name 0.");
}
const gl::Renderbuffer *renderbuffer =
context->getRenderbuffer(egl_gl::EGLClientBufferToGLObjectHandle(buffer));
if (renderbuffer == nullptr)
{
return Error(EGL_BAD_PARAMETER, "target is not a renderbuffer.");
}
if (renderbuffer->getSamples() > 0)
{
return Error(EGL_BAD_PARAMETER, "target renderbuffer cannot be multisampled.");
}
}
break;
default:
return Error(EGL_BAD_PARAMETER, "invalid target: 0x%X", target);
}
return Error(EGL_SUCCESS);
}
EGLBoolean EGLAPIENTRY MakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLSurface draw = 0x%0.8p, EGLSurface read = 0x%0.8p, EGLContext ctx = 0x%0.8p)",
dpy, draw, read, ctx);
Display *display = static_cast<Display*>(dpy);
gl::Context *context = static_cast<gl::Context*>(ctx);
bool noContext = (ctx == EGL_NO_CONTEXT);
bool noSurface = (draw == EGL_NO_SURFACE || read == EGL_NO_SURFACE);
if (noContext != noSurface)
{
SetGlobalError(Error(EGL_BAD_MATCH));
return EGL_FALSE;
}
if (ctx != EGL_NO_CONTEXT)
{
Error error = ValidateContext(display, context);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (dpy != EGL_NO_DISPLAY && display->isInitialized())
{
if (display->testDeviceLost())
{
display->notifyDeviceLost();
return EGL_FALSE;
}
if (display->isDeviceLost())
{
SetGlobalError(Error(EGL_CONTEXT_LOST));
return EGL_FALSE;
}
}
Surface *drawSurface = static_cast<Surface*>(draw);
if (draw != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, drawSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
Surface *readSurface = static_cast<Surface*>(read);
if (read != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, readSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (draw != read)
{
UNIMPLEMENTED(); // FIXME
}
SetGlobalDisplay(display);
SetGlobalDrawSurface(drawSurface);
SetGlobalReadSurface(readSurface);
SetGlobalContext(context);
if (context != nullptr && display != nullptr && drawSurface != nullptr)
{
display->makeCurrent(drawSurface, readSurface, context);
}
SetGlobalError(Error(EGL_SUCCESS));
return EGL_TRUE;
}
EGLBoolean EGLAPIENTRY MakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
{
EVENT("(EGLDisplay dpy = 0x%0.8p, EGLSurface draw = 0x%0.8p, EGLSurface read = 0x%0.8p, EGLContext ctx = 0x%0.8p)",
dpy, draw, read, ctx);
Display *display = static_cast<Display*>(dpy);
gl::Context *context = static_cast<gl::Context*>(ctx);
bool noContext = (ctx == EGL_NO_CONTEXT);
bool noSurface = (draw == EGL_NO_SURFACE || read == EGL_NO_SURFACE);
if (noContext != noSurface)
{
SetGlobalError(Error(EGL_BAD_MATCH));
return EGL_FALSE;
}
if (dpy == EGL_NO_DISPLAY)
{
SetGlobalError(Error(EGL_BAD_DISPLAY, "'dpy' not a valid EGLDisplay handle"));
return EGL_FALSE;
}
// EGL 1.5 spec: dpy can be uninitialized if all other parameters are null
if (dpy != EGL_NO_DISPLAY && !display->isInitialized() &&
(ctx != EGL_NO_CONTEXT || draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE))
{
SetGlobalError(Error(EGL_NOT_INITIALIZED, "'dpy' not initialized"));
return EGL_FALSE;
}
if (ctx != EGL_NO_CONTEXT)
{
Error error = ValidateContext(display, context);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (dpy != EGL_NO_DISPLAY && display->isInitialized())
{
if (display->testDeviceLost())
{
display->notifyDeviceLost();
return EGL_FALSE;
}
if (display->isDeviceLost())
{
SetGlobalError(Error(EGL_CONTEXT_LOST));
return EGL_FALSE;
}
}
Surface *drawSurface = static_cast<Surface*>(draw);
if (draw != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, drawSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
Surface *readSurface = static_cast<Surface*>(read);
if (read != EGL_NO_SURFACE)
{
Error error = ValidateSurface(display, readSurface);
if (error.isError())
{
SetGlobalError(error);
return EGL_FALSE;
}
}
if (draw != read)
{
UNIMPLEMENTED(); // FIXME
}
gl::Context *previousContext = GetGlobalContext();
SetGlobalDisplay(display);
SetGlobalDrawSurface(drawSurface);
SetGlobalReadSurface(readSurface);
SetGlobalContext(context);
display->makeCurrent(drawSurface, readSurface, context);
// Release the surface from the previously-current context, to allow
// destroyed surfaces to delete themselves.
if (previousContext != nullptr && context != previousContext)
{
previousContext->releaseSurface();
}
SetGlobalError(Error(EGL_SUCCESS));
return EGL_TRUE;
}
Error ValidateStreamConsumerGLTextureExternalAttribsNV(const Display *display,
gl::Context *context,
const Stream *stream,
const AttributeMap &attribs)
{
ANGLE_TRY(ValidateDisplay(display));
const DisplayExtensions &displayExtensions = display->getExtensions();
if (!displayExtensions.streamConsumerGLTexture)
{
return Error(EGL_BAD_ACCESS, "Stream consumer extension not active");
}
// Although technically not a requirement in spec, the context needs to be checked for support
// for external textures or future logic will cause assertations. This extension is also
// effectively useless without external textures.
if (!context->getExtensions().eglStreamConsumerExternal)
{
return Error(EGL_BAD_ACCESS, "EGL stream consumer external GL extension not enabled");
}
if (stream == EGL_NO_STREAM_KHR || !display->isValidStream(stream))
{
return Error(EGL_BAD_STREAM_KHR, "Invalid stream");
}
if (!context)
{
return Error(EGL_BAD_ACCESS, "No GL context current to calling thread.");
}
ANGLE_TRY(ValidateContext(display, context));
if (stream->getState() != EGL_STREAM_STATE_CREATED_KHR)
{
return Error(EGL_BAD_STATE_KHR, "Invalid stream state");
}
const gl::Caps &glCaps = context->getCaps();
EGLAttrib colorBufferType = EGL_RGB_BUFFER;
EGLAttrib planeCount = -1;
EGLAttrib plane[3];
for (int i = 0; i < 3; i++)
{
plane[i] = -1;
}
for (const auto &attributeIter : attribs)
{
EGLAttrib attribute = attributeIter.first;
EGLAttrib value = attributeIter.second;
switch (attribute)
{
case EGL_COLOR_BUFFER_TYPE:
if (value != EGL_RGB_BUFFER && value != EGL_YUV_BUFFER_EXT)
{
return Error(EGL_BAD_PARAMETER, "Invalid color buffer type");
}
colorBufferType = value;
break;
case EGL_YUV_NUMBER_OF_PLANES_EXT:
// planeCount = -1 is a tag for the default plane count so the value must be checked
// to be positive here to ensure future logic doesn't break on invalid negative
// inputs
if (value < 0)
{
return Error(EGL_BAD_MATCH, "Invalid plane count");
}
planeCount = value;
break;
default:
if (attribute >= EGL_YUV_PLANE0_TEXTURE_UNIT_NV &&
attribute <= EGL_YUV_PLANE2_TEXTURE_UNIT_NV)
{
if ((value < 0 ||
value >= static_cast<EGLAttrib>(glCaps.maxCombinedTextureImageUnits)) &&
value != EGL_NONE)
{
return Error(EGL_BAD_ACCESS, "Invalid texture unit");
}
plane[attribute - EGL_YUV_PLANE0_TEXTURE_UNIT_NV] = value;
}
else
{
return Error(EGL_BAD_ATTRIBUTE, "Invalid attribute");
}
}
}
if (colorBufferType == EGL_RGB_BUFFER)
{
if (planeCount > 0)
{
return Error(EGL_BAD_MATCH, "Plane count must be 0 for RGB buffer");
}
for (int i = 0; i < 3; i++)
{
if (plane[i] != -1)
{
return Error(EGL_BAD_MATCH, "Planes cannot be specified");
}
}
// Lookup the texture and ensure it is correct
gl::Texture *texture = context->getGLState().getTargetTexture(GL_TEXTURE_EXTERNAL_OES);
if (texture == nullptr || texture->getId() == 0)
{
return Error(EGL_BAD_ACCESS, "No external texture bound");
}
}
else
{
if (planeCount == -1)
{
planeCount = 2;
}
if (planeCount < 1 || planeCount > 3)
{
return Error(EGL_BAD_MATCH, "Invalid YUV plane count");
}
for (EGLAttrib i = planeCount; i < 3; i++)
{
if (plane[i] != -1)
{
return Error(EGL_BAD_MATCH, "Invalid plane specified");
}
}
// Set to ensure no texture is referenced more than once
std::set<gl::Texture *> textureSet;
for (EGLAttrib i = 0; i < planeCount; i++)
{
if (plane[i] == -1)
{
return Error(EGL_BAD_MATCH, "Not all planes specified");
}
if (plane[i] != EGL_NONE)
{
gl::Texture *texture = context->getGLState().getSamplerTexture(
static_cast<unsigned int>(plane[i]), GL_TEXTURE_EXTERNAL_OES);
if (texture == nullptr || texture->getId() == 0)
{
return Error(
EGL_BAD_ACCESS,
"No external texture bound at one or more specified texture units");
}
if (textureSet.find(texture) != textureSet.end())
{
return Error(EGL_BAD_ACCESS, "Multiple planes bound to same texture object");
}
textureSet.insert(texture);
}
}
}
return Error(EGL_SUCCESS);
}
