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/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "VideoTextureCopierCV.h"
#include "Logging.h"
#include <wtf/NeverDestroyed.h>
#if PLATFORM(IOS)
#include <OpenGLES/ES3/glext.h>
#endif
#include "CoreVideoSoftLink.h"
namespace WebCore {
VideoTextureCopierCV::VideoTextureCopierCV(GraphicsContext3D& context)
: m_context(context)
, m_readFramebuffer(context.createFramebuffer())
{
}
VideoTextureCopierCV::~VideoTextureCopierCV()
{
m_context->deleteFramebuffer(m_readFramebuffer);
}
#if !LOG_DISABLED
#define STRINGIFY_PAIR(e) e, #e
static std::map<uint32_t, const char*>& enumToStringMap()
{
static NeverDestroyed<std::map<uint32_t, const char*>> map;
if (map.get().empty()) {
std::map<uint32_t, const char*> stringMap;
map.get().emplace(STRINGIFY_PAIR(GL_RGB));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA));
map.get().emplace(STRINGIFY_PAIR(GL_LUMINANCE_ALPHA));
map.get().emplace(STRINGIFY_PAIR(GL_LUMINANCE));
map.get().emplace(STRINGIFY_PAIR(GL_ALPHA));
map.get().emplace(STRINGIFY_PAIR(GL_R8));
map.get().emplace(STRINGIFY_PAIR(GL_R16F));
map.get().emplace(STRINGIFY_PAIR(GL_R32F));
map.get().emplace(STRINGIFY_PAIR(GL_R8UI));
map.get().emplace(STRINGIFY_PAIR(GL_R8I));
map.get().emplace(STRINGIFY_PAIR(GL_R16UI));
map.get().emplace(STRINGIFY_PAIR(GL_R16I));
map.get().emplace(STRINGIFY_PAIR(GL_R32UI));
map.get().emplace(STRINGIFY_PAIR(GL_R32I));
map.get().emplace(STRINGIFY_PAIR(GL_RG8));
map.get().emplace(STRINGIFY_PAIR(GL_RG16F));
map.get().emplace(STRINGIFY_PAIR(GL_RG32F));
map.get().emplace(STRINGIFY_PAIR(GL_RG8UI));
map.get().emplace(STRINGIFY_PAIR(GL_RG8I));
map.get().emplace(STRINGIFY_PAIR(GL_RG16UI));
map.get().emplace(STRINGIFY_PAIR(GL_RG16I));
map.get().emplace(STRINGIFY_PAIR(GL_RG32UI));
map.get().emplace(STRINGIFY_PAIR(GL_RG32I));
map.get().emplace(STRINGIFY_PAIR(GL_RGB8));
map.get().emplace(STRINGIFY_PAIR(GL_SRGB8));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA8));
map.get().emplace(STRINGIFY_PAIR(GL_SRGB8_ALPHA8));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA4));
map.get().emplace(STRINGIFY_PAIR(GL_RGB10_A2));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH_COMPONENT16));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH_COMPONENT24));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH_COMPONENT32F));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH24_STENCIL8));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH32F_STENCIL8));
map.get().emplace(STRINGIFY_PAIR(GL_RGB));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA));
map.get().emplace(STRINGIFY_PAIR(GL_LUMINANCE_ALPHA));
map.get().emplace(STRINGIFY_PAIR(GL_LUMINANCE));
map.get().emplace(STRINGIFY_PAIR(GL_ALPHA));
map.get().emplace(STRINGIFY_PAIR(GL_RED));
map.get().emplace(STRINGIFY_PAIR(GL_RG_INTEGER));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH_STENCIL));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_BYTE));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_SHORT_5_6_5));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_SHORT_4_4_4_4));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_SHORT_5_5_5_1));
map.get().emplace(STRINGIFY_PAIR(GL_BYTE));
map.get().emplace(STRINGIFY_PAIR(GL_HALF_FLOAT));
map.get().emplace(STRINGIFY_PAIR(GL_FLOAT));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_SHORT));
map.get().emplace(STRINGIFY_PAIR(GL_SHORT));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_INT));
map.get().emplace(STRINGIFY_PAIR(GL_INT));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_INT_2_10_10_10_REV));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_INT_24_8));
map.get().emplace(STRINGIFY_PAIR(GL_FLOAT_32_UNSIGNED_INT_24_8_REV));
#if PLATFORM(IOS)
map.get().emplace(STRINGIFY_PAIR(GL_RED_INTEGER));
map.get().emplace(STRINGIFY_PAIR(GL_RGB_INTEGER));
map.get().emplace(STRINGIFY_PAIR(GL_RG8_SNORM));
map.get().emplace(STRINGIFY_PAIR(GL_RGB565));
map.get().emplace(STRINGIFY_PAIR(GL_RGB8_SNORM));
map.get().emplace(STRINGIFY_PAIR(GL_R11F_G11F_B10F));
map.get().emplace(STRINGIFY_PAIR(GL_RGB9_E5));
map.get().emplace(STRINGIFY_PAIR(GL_RGB16F));
map.get().emplace(STRINGIFY_PAIR(GL_RGB32F));
map.get().emplace(STRINGIFY_PAIR(GL_RGB8UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGB8I));
map.get().emplace(STRINGIFY_PAIR(GL_RGB16UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGB16I));
map.get().emplace(STRINGIFY_PAIR(GL_RGB32UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGB32I));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA8_SNORM));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA16F));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA32F));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA8UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA8I));
map.get().emplace(STRINGIFY_PAIR(GL_RGB10_A2UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA16UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA16I));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA32I));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA32UI));
map.get().emplace(STRINGIFY_PAIR(GL_RGB5_A1));
map.get().emplace(STRINGIFY_PAIR(GL_RG));
map.get().emplace(STRINGIFY_PAIR(GL_RGBA_INTEGER));
map.get().emplace(STRINGIFY_PAIR(GL_DEPTH_COMPONENT));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_INT_10F_11F_11F_REV));
map.get().emplace(STRINGIFY_PAIR(GL_UNSIGNED_INT_5_9_9_9_REV));
#endif
}
return map.get();
}
#endif
bool VideoTextureCopierCV::copyVideoTextureToPlatformTexture(TextureType inputTexture, size_t width, size_t height, Platform3DObject outputTexture, GC3Denum outputTarget, GC3Dint level, GC3Denum internalFormat, GC3Denum format, GC3Denum type, bool premultiplyAlpha, bool flipY)
{
if (flipY || premultiplyAlpha)
return false;
if (!inputTexture)
return false;
#if PLATFORM(IOS)
Platform3DObject videoTextureName = CVOpenGLESTextureGetName(inputTexture);
GC3Denum videoTextureTarget = CVOpenGLESTextureGetTarget(inputTexture);
#else
Platform3DObject videoTextureName = CVOpenGLTextureGetName(inputTexture);
GC3Denum videoTextureTarget = CVOpenGLTextureGetTarget(inputTexture);
#endif
LOG(Media, "VideoTextureCopierCV::copyVideoTextureToPlatformTexture(%p) - internalFormat: %s, format: %s, type: %s", this, enumToStringMap()[internalFormat], enumToStringMap()[format], enumToStringMap()[type]);
// Save the origial bound texture & framebuffer names so we can re-bind them after copying the video texture.
GC3Dint boundTexture = 0;
GC3Dint boundReadFramebuffer = 0;
m_context->getIntegerv(GraphicsContext3D::TEXTURE_BINDING_2D, &boundTexture);
m_context->getIntegerv(GraphicsContext3D::READ_FRAMEBUFFER_BINDING, &boundReadFramebuffer);
m_context->bindTexture(videoTextureTarget, videoTextureName);
m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR);
m_context->texParameterf(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE);
m_context->texParameterf(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE);
// Make that framebuffer the read source from which drawing commands will read voxels.
m_context->bindFramebuffer(GraphicsContext3D::READ_FRAMEBUFFER, m_readFramebuffer);
// Allocate uninitialized memory for the output texture.
m_context->bindTexture(outputTarget, outputTexture);
m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR);
m_context->texParameterf(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE);
m_context->texParameterf(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE);
m_context->texImage2DDirect(outputTarget, level, internalFormat, width, height, 0, format, type, nullptr);
// Attach the video texture to the framebuffer.
m_context->framebufferTexture2D(GraphicsContext3D::READ_FRAMEBUFFER, GraphicsContext3D::COLOR_ATTACHMENT0, videoTextureTarget, videoTextureName, level);
GC3Denum status = m_context->checkFramebufferStatus(GraphicsContext3D::READ_FRAMEBUFFER);
if (status != GraphicsContext3D::FRAMEBUFFER_COMPLETE)
return false;
// Copy texture from the read framebuffer (and thus the video texture) to the output texture.
m_context->copyTexImage2D(outputTarget, level, internalFormat, 0, 0, width, height, 0);
// Restore the previous texture and framebuffer bindings.
m_context->bindTexture(outputTarget, boundTexture);
m_context->bindFramebuffer(GraphicsContext3D::READ_FRAMEBUFFER, boundReadFramebuffer);
return !m_context->getError();
}
}
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