1/*
2 * Copyright (C) 2015 Igalia S.L.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "TextureMapperPlatformLayerBuffer.h"
28
29#if USE(COORDINATED_GRAPHICS)
30
31#include "FloatRect.h"
32#include "NotImplemented.h"
33
34namespace WebCore {
35
36TextureMapperPlatformLayerBuffer::TextureMapperPlatformLayerBuffer(RefPtr<BitmapTexture>&& texture, TextureMapperGL::Flags flags)
37 : m_texture(WTFMove(texture))
38 , m_textureID(0)
39 , m_extraFlags(flags)
40 , m_hasManagedTexture(true)
41{
42}
43
44TextureMapperPlatformLayerBuffer::TextureMapperPlatformLayerBuffer(GLuint textureID, const IntSize& size, TextureMapperGL::Flags flags, GLint internalFormat)
45 : m_textureID(textureID)
46 , m_size(size)
47 , m_internalFormat(internalFormat)
48 , m_extraFlags(flags)
49 , m_hasManagedTexture(false)
50{
51}
52
53bool TextureMapperPlatformLayerBuffer::canReuseWithoutReset(const IntSize& size, GLint internalFormat)
54{
55 return m_texture && (m_texture->size() == size) && (static_cast<BitmapTextureGL*>(m_texture.get())->internalFormat() == internalFormat || internalFormat == GL_DONT_CARE);
56}
57
58std::unique_ptr<TextureMapperPlatformLayerBuffer> TextureMapperPlatformLayerBuffer::clone()
59{
60 if (m_hasManagedTexture || !m_textureID) {
61 notImplemented();
62 return nullptr;
63 }
64 auto texture = BitmapTextureGL::create(TextureMapperContextAttributes::get(), m_internalFormat);
65 texture->reset(m_size);
66 static_cast<BitmapTextureGL&>(texture.get()).copyFromExternalTexture(m_textureID);
67 return std::make_unique<TextureMapperPlatformLayerBuffer>(WTFMove(texture), m_extraFlags);
68}
69
70void TextureMapperPlatformLayerBuffer::paintToTextureMapper(TextureMapper& textureMapper, const FloatRect& targetRect, const TransformationMatrix& modelViewMatrix, float opacity)
71{
72 TextureMapperGL& texmapGL = static_cast<TextureMapperGL&>(textureMapper);
73
74 if (m_hasManagedTexture) {
75 ASSERT(m_texture);
76 BitmapTextureGL* textureGL = static_cast<BitmapTextureGL*>(m_texture.get());
77 texmapGL.drawTexture(textureGL->id(), m_extraFlags | textureGL->colorConvertFlags(), textureGL->size(), targetRect, modelViewMatrix, opacity);
78 return;
79 }
80
81 if (m_extraFlags & TextureMapperGL::ShouldNotBlend) {
82 ASSERT(!m_texture);
83 if (m_holePunchClient)
84 m_holePunchClient->setVideoRectangle(enclosingIntRect(modelViewMatrix.mapRect(targetRect)));
85 texmapGL.drawSolidColor(targetRect, modelViewMatrix, Color(0, 0, 0, 0), false);
86 return;
87 }
88
89 ASSERT(m_textureID);
90 texmapGL.drawTexture(m_textureID, m_extraFlags, m_size, targetRect, modelViewMatrix, opacity);
91}
92
93} // namespace WebCore
94
95#endif // USE(COORDINATED_GRAPHICS)
96