webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 212 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp b/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp
new file mode 100644
index 000000000..1d1ea39c8
--- /dev/null
+++ b/Source/WebCore/platform/graphics/cv/VideoTextureCopierCV.cpp
@@ -0,0 +1,212 @@
+/*
+ * 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();
+}
+
+
+}