2 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali/internal/render/gl-resources/native-texture.h>
22 #include <dali/integration-api/debug.h>
23 #include <dali/internal/render/gl-resources/context.h>
24 #include <dali/internal/render/gl-resources/texture-units.h>
25 #include <dali/internal/render/gl-resources/gl-texture.h>
26 #include <dali/devel-api/images/native-image-interface-extension.h>
34 NativeTexture::NativeTexture(NativeImageInterface* nativeImg, Context& context)
36 nativeImg->GetWidth(),
37 nativeImg->GetHeight(),
38 nativeImg->GetWidth(),
39 nativeImg->GetHeight()),
40 mNativeImage(nativeImg)
42 DALI_LOG_INFO( Debug::Filter::gImage, Debug::General, "NativeTexture created 0x%x\n", &nativeImg );
45 NativeTexture::~NativeTexture()
47 DALI_LOG_INFO (Debug::Filter::gImage, Debug::General, "NativeTexture destroyed\n");
49 // GlCleanup() should already have been called by TextureCache ensuring the resource is destroyed
50 // on the render thread. (And avoiding a potentially problematic virtual call in the destructor)
53 bool NativeTexture::Bind( GLenum target, TextureUnit textureunit )
59 result = CreateGlTexture();
64 // Bind the texture id
65 mContext.ActiveTexture( textureunit );
67 int textureTarget = GL_TEXTURE_2D;
68 NativeImageInterface::Extension* extension = mNativeImage->GetExtension();
71 textureTarget = extension->GetEglImageTextureTarget();
74 mContext.BindTexture( textureTarget, mId );
75 mNativeImage->PrepareTexture();
81 bool NativeTexture::IsFullyOpaque() const
83 return !HasAlphaChannel();
86 bool NativeTexture::HasAlphaChannel() const
88 return mNativeImage->RequiresBlending();
91 bool NativeTexture::CreateGlTexture()
95 DALI_LOG_INFO( Debug::Filter::gImage, Debug::General, "GL texture creation duplicate for GL id: %d\n", &mId );
99 if( mNativeImage->GlExtensionCreate() )
101 mContext.GenTextures( 1, &mId );
102 mContext.ActiveTexture( TEXTURE_UNIT_UPLOAD ); // bind in unused unit so rebind works the first time
104 int textureTarget = GL_TEXTURE_2D;
105 NativeImageInterface::Extension* extension = mNativeImage->GetExtension();
108 textureTarget = extension->GetEglImageTextureTarget();
111 mContext.BindTexture( textureTarget, mId );
113 mContext.PixelStorei( GL_UNPACK_ALIGNMENT, 1 ); // We always use tightly packed data
115 mContext.TexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
116 mContext.TexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
118 // platform specific implementation decides on what GL extension to use
119 mNativeImage->TargetTexture();
123 DALI_LOG_ERROR( "Error creating native image!\n" );
129 void NativeTexture::GlCleanup()
131 Texture::GlCleanup();
133 DALI_ASSERT_DEBUG( mNativeImage );
135 mNativeImage->GlExtensionDestroy();
136 mNativeImage.Reset();
139 bool NativeTexture::Init()
144 } //namespace Internal