1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/opengl/GrallocTextureHost.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,443 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 +// * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "GLContext.h"
1.10 +#include "gfx2DGlue.h"
1.11 +#include <ui/GraphicBuffer.h>
1.12 +#include "GrallocImages.h" // for GrallocImage
1.13 +#include "mozilla/layers/GrallocTextureHost.h"
1.14 +#include "mozilla/layers/CompositorOGL.h"
1.15 +#include "EGLImageHelpers.h"
1.16 +#include "GLReadTexImageHelper.h"
1.17 +
1.18 +namespace mozilla {
1.19 +namespace layers {
1.20 +
1.21 +using namespace android;
1.22 +
1.23 +static gfx::SurfaceFormat
1.24 +SurfaceFormatForAndroidPixelFormat(android::PixelFormat aFormat,
1.25 + bool swapRB = false)
1.26 +{
1.27 + switch (aFormat) {
1.28 + case android::PIXEL_FORMAT_BGRA_8888:
1.29 + return swapRB ? gfx::SurfaceFormat::R8G8B8A8 : gfx::SurfaceFormat::B8G8R8A8;
1.30 + case android::PIXEL_FORMAT_RGBA_8888:
1.31 + return swapRB ? gfx::SurfaceFormat::B8G8R8A8 : gfx::SurfaceFormat::R8G8B8A8;
1.32 + case android::PIXEL_FORMAT_RGBX_8888:
1.33 + return swapRB ? gfx::SurfaceFormat::B8G8R8X8 : gfx::SurfaceFormat::R8G8B8X8;
1.34 + case android::PIXEL_FORMAT_RGB_565:
1.35 + return gfx::SurfaceFormat::R5G6B5;
1.36 + case HAL_PIXEL_FORMAT_YCbCr_422_SP:
1.37 + case HAL_PIXEL_FORMAT_YCrCb_420_SP:
1.38 + case HAL_PIXEL_FORMAT_YCbCr_422_I:
1.39 + case GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
1.40 + case GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
1.41 + case HAL_PIXEL_FORMAT_YV12:
1.42 + return gfx::SurfaceFormat::R8G8B8A8; // yup, use SurfaceFormat::R8G8B8A8 even though it's a YUV texture. This is an external texture.
1.43 + default:
1.44 + if (aFormat >= 0x100 && aFormat <= 0x1FF) {
1.45 + // Reserved range for HAL specific formats.
1.46 + return gfx::SurfaceFormat::R8G8B8A8;
1.47 + } else {
1.48 + // This is not super-unreachable, there's a bunch of hypothetical pixel
1.49 + // formats we don't deal with.
1.50 + // We only want to abort in debug builds here, since if we crash here
1.51 + // we'll take down the compositor process and thus the phone. This seems
1.52 + // like undesirable behaviour. We'd rather have a subtle artifact.
1.53 + printf_stderr(" xxxxx unknow android format %i\n", (int)aFormat);
1.54 + MOZ_ASSERT(false, "Unknown Android pixel format.");
1.55 + return gfx::SurfaceFormat::UNKNOWN;
1.56 + }
1.57 + }
1.58 +}
1.59 +
1.60 +static GLenum
1.61 +TextureTargetForAndroidPixelFormat(android::PixelFormat aFormat)
1.62 +{
1.63 + switch (aFormat) {
1.64 + case HAL_PIXEL_FORMAT_YCbCr_422_SP:
1.65 + case HAL_PIXEL_FORMAT_YCrCb_420_SP:
1.66 + case HAL_PIXEL_FORMAT_YCbCr_422_I:
1.67 + case GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED:
1.68 + case GrallocImage::HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS:
1.69 + case HAL_PIXEL_FORMAT_YV12:
1.70 + return LOCAL_GL_TEXTURE_EXTERNAL;
1.71 + case android::PIXEL_FORMAT_BGRA_8888:
1.72 + case android::PIXEL_FORMAT_RGBA_8888:
1.73 + case android::PIXEL_FORMAT_RGBX_8888:
1.74 + case android::PIXEL_FORMAT_RGB_565:
1.75 + return LOCAL_GL_TEXTURE_2D;
1.76 + default:
1.77 + if (aFormat >= 0x100 && aFormat <= 0x1FF) {
1.78 + // Reserved range for HAL specific formats.
1.79 + return LOCAL_GL_TEXTURE_EXTERNAL;
1.80 + } else {
1.81 + // This is not super-unreachable, there's a bunch of hypothetical pixel
1.82 + // formats we don't deal with.
1.83 + // We only want to abort in debug builds here, since if we crash here
1.84 + // we'll take down the compositor process and thus the phone. This seems
1.85 + // like undesirable behaviour. We'd rather have a subtle artifact.
1.86 + MOZ_ASSERT(false, "Unknown Android pixel format.");
1.87 + return LOCAL_GL_TEXTURE_EXTERNAL;
1.88 + }
1.89 + }
1.90 +}
1.91 +
1.92 +GrallocTextureSourceOGL::GrallocTextureSourceOGL(CompositorOGL* aCompositor,
1.93 + android::GraphicBuffer* aGraphicBuffer,
1.94 + gfx::SurfaceFormat aFormat)
1.95 + : mCompositor(aCompositor)
1.96 + , mGraphicBuffer(aGraphicBuffer)
1.97 + , mEGLImage(0)
1.98 + , mFormat(aFormat)
1.99 + , mNeedsReset(true)
1.100 +{
1.101 + MOZ_ASSERT(mGraphicBuffer.get());
1.102 +}
1.103 +
1.104 +GrallocTextureSourceOGL::~GrallocTextureSourceOGL()
1.105 +{
1.106 + DeallocateDeviceData();
1.107 + mCompositor = nullptr;
1.108 +}
1.109 +
1.110 +void
1.111 +GrallocTextureSourceOGL::BindTexture(GLenum aTextureUnit, gfx::Filter aFilter)
1.112 +{
1.113 + /*
1.114 + * The job of this function is to ensure that the texture is tied to the
1.115 + * android::GraphicBuffer, so that texturing will source the GraphicBuffer.
1.116 + *
1.117 + * To this effect we create an EGLImage wrapping this GraphicBuffer,
1.118 + * using EGLImageCreateFromNativeBuffer, and then we tie this EGLImage to our
1.119 + * texture using fEGLImageTargetTexture2D.
1.120 + */
1.121 + MOZ_ASSERT(gl());
1.122 + if (!IsValid()) {
1.123 + return;
1.124 + }
1.125 + gl()->MakeCurrent();
1.126 +
1.127 + GLuint tex = GetGLTexture();
1.128 + GLuint textureTarget = GetTextureTarget();
1.129 +
1.130 + gl()->fActiveTexture(aTextureUnit);
1.131 + gl()->fBindTexture(textureTarget, tex);
1.132 +
1.133 + if (mCompositableBackendData) {
1.134 + // There are two paths for locking/unlocking - if mCompositableBackendData is
1.135 + // set, we use the texture on there, otherwise we use
1.136 + // CompositorBackendSpecificData from the compositor and bind the EGLImage
1.137 + // only in Lock().
1.138 + if (!mEGLImage) {
1.139 + mEGLImage = EGLImageCreateFromNativeBuffer(gl(), mGraphicBuffer->getNativeBuffer());
1.140 + }
1.141 + gl()->fEGLImageTargetTexture2D(textureTarget, mEGLImage);
1.142 + }
1.143 +
1.144 + ApplyFilterToBoundTexture(gl(), aFilter, textureTarget);
1.145 +}
1.146 +
1.147 +void GrallocTextureSourceOGL::Lock()
1.148 +{
1.149 + if (mCompositableBackendData) return;
1.150 +
1.151 + MOZ_ASSERT(IsValid());
1.152 +
1.153 + mTexture = mCompositor->GetTemporaryTexture(GetTextureTarget(), LOCAL_GL_TEXTURE0);
1.154 +
1.155 + GLuint textureTarget = GetTextureTarget();
1.156 +
1.157 + gl()->MakeCurrent();
1.158 + gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
1.159 + gl()->fBindTexture(textureTarget, mTexture);
1.160 + if (!mEGLImage) {
1.161 + mEGLImage = EGLImageCreateFromNativeBuffer(gl(), mGraphicBuffer->getNativeBuffer());
1.162 + }
1.163 + gl()->fEGLImageTargetTexture2D(textureTarget, mEGLImage);
1.164 +}
1.165 +
1.166 +bool
1.167 +GrallocTextureSourceOGL::IsValid() const
1.168 +{
1.169 + return !!gl() && !!mGraphicBuffer.get() && (!!mCompositor || !!mCompositableBackendData);
1.170 +}
1.171 +
1.172 +gl::GLContext*
1.173 +GrallocTextureSourceOGL::gl() const
1.174 +{
1.175 + return mCompositor ? mCompositor->gl() : nullptr;
1.176 +}
1.177 +
1.178 +void
1.179 +GrallocTextureSourceOGL::SetCompositor(Compositor* aCompositor)
1.180 +{
1.181 + if (mCompositor && !aCompositor) {
1.182 + DeallocateDeviceData();
1.183 + }
1.184 + mCompositor = static_cast<CompositorOGL*>(aCompositor);
1.185 +}
1.186 +
1.187 +
1.188 +GLenum
1.189 +GrallocTextureSourceOGL::GetTextureTarget() const
1.190 +{
1.191 + MOZ_ASSERT(gl());
1.192 + MOZ_ASSERT(mGraphicBuffer.get());
1.193 +
1.194 + if (!gl() || !mGraphicBuffer.get()) {
1.195 + return LOCAL_GL_TEXTURE_EXTERNAL;
1.196 + }
1.197 +
1.198 + // SGX has a quirk that only TEXTURE_EXTERNAL works and any other value will
1.199 + // result in black pixels when trying to draw from bound textures.
1.200 + // Unfortunately, using TEXTURE_EXTERNAL on Adreno has a terrible effect on
1.201 + // performance.
1.202 + // See Bug 950050.
1.203 + if (gl()->Renderer() == gl::GLRenderer::SGX530 ||
1.204 + gl()->Renderer() == gl::GLRenderer::SGX540) {
1.205 + return LOCAL_GL_TEXTURE_EXTERNAL;
1.206 + }
1.207 +
1.208 + return TextureTargetForAndroidPixelFormat(mGraphicBuffer->getPixelFormat());
1.209 +}
1.210 +
1.211 +void
1.212 +GrallocTextureSourceOGL::SetCompositableBackendSpecificData(CompositableBackendSpecificData* aBackendData)
1.213 +{
1.214 + if (!aBackendData) {
1.215 + mCompositableBackendData = nullptr;
1.216 + DeallocateDeviceData();
1.217 + return;
1.218 + }
1.219 +
1.220 + if (mCompositableBackendData != aBackendData) {
1.221 + mNeedsReset = true;
1.222 + }
1.223 +
1.224 + if (!mNeedsReset) {
1.225 + // Update binding to the EGLImage
1.226 + gl()->MakeCurrent();
1.227 + GLuint tex = GetGLTexture();
1.228 + GLuint textureTarget = GetTextureTarget();
1.229 + gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
1.230 + gl()->fBindTexture(textureTarget, tex);
1.231 + gl()->fEGLImageTargetTexture2D(textureTarget, mEGLImage);
1.232 + return;
1.233 + }
1.234 +
1.235 + mCompositableBackendData = aBackendData;
1.236 +
1.237 + if (!mCompositor) {
1.238 + return;
1.239 + }
1.240 +
1.241 + // delete old EGLImage
1.242 + DeallocateDeviceData();
1.243 +
1.244 + gl()->MakeCurrent();
1.245 + GLuint tex = GetGLTexture();
1.246 + GLuint textureTarget = GetTextureTarget();
1.247 +
1.248 + gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
1.249 + gl()->fBindTexture(textureTarget, tex);
1.250 + // create new EGLImage
1.251 + mEGLImage = EGLImageCreateFromNativeBuffer(gl(), mGraphicBuffer->getNativeBuffer());
1.252 + gl()->fEGLImageTargetTexture2D(textureTarget, mEGLImage);
1.253 + mNeedsReset = false;
1.254 +}
1.255 +
1.256 +gfx::IntSize
1.257 +GrallocTextureSourceOGL::GetSize() const
1.258 +{
1.259 + if (!IsValid()) {
1.260 + NS_WARNING("Trying to access the size of an invalid GrallocTextureSourceOGL");
1.261 + return gfx::IntSize(0, 0);
1.262 + }
1.263 + return gfx::IntSize(mGraphicBuffer->getWidth(), mGraphicBuffer->getHeight());
1.264 +}
1.265 +
1.266 +void
1.267 +GrallocTextureSourceOGL::DeallocateDeviceData()
1.268 +{
1.269 + if (mEGLImage) {
1.270 + MOZ_ASSERT(gl());
1.271 + gl()->MakeCurrent();
1.272 + EGLImageDestroy(gl(), mEGLImage);
1.273 + mEGLImage = EGL_NO_IMAGE;
1.274 + }
1.275 +}
1.276 +
1.277 +GrallocTextureHostOGL::GrallocTextureHostOGL(TextureFlags aFlags,
1.278 + const NewSurfaceDescriptorGralloc& aDescriptor)
1.279 + : TextureHost(aFlags)
1.280 +{
1.281 + android::GraphicBuffer* graphicBuffer = nullptr;
1.282 + gfx::SurfaceFormat format = gfx::SurfaceFormat::UNKNOWN;
1.283 +
1.284 + mSize = aDescriptor.size();
1.285 + mGrallocActor =
1.286 + static_cast<GrallocBufferActor*>(aDescriptor.bufferParent());
1.287 +
1.288 + if (mGrallocActor) {
1.289 + mGrallocActor->AddTextureHost(this);
1.290 + graphicBuffer = mGrallocActor->GetGraphicBuffer();
1.291 + }
1.292 +
1.293 + if (graphicBuffer) {
1.294 + format =
1.295 + SurfaceFormatForAndroidPixelFormat(graphicBuffer->getPixelFormat(),
1.296 + aFlags & TEXTURE_RB_SWAPPED);
1.297 + }
1.298 + mTextureSource = new GrallocTextureSourceOGL(nullptr,
1.299 + graphicBuffer,
1.300 + format);
1.301 +}
1.302 +
1.303 +GrallocTextureHostOGL::~GrallocTextureHostOGL()
1.304 +{
1.305 + mTextureSource = nullptr;
1.306 + if (mGrallocActor) {
1.307 + mGrallocActor->RemoveTextureHost();
1.308 + mGrallocActor = nullptr;
1.309 + }
1.310 +}
1.311 +
1.312 +void
1.313 +GrallocTextureHostOGL::SetCompositor(Compositor* aCompositor)
1.314 +{
1.315 + mTextureSource->SetCompositor(static_cast<CompositorOGL*>(aCompositor));
1.316 +}
1.317 +
1.318 +bool
1.319 +GrallocTextureHostOGL::Lock()
1.320 +{
1.321 + if (IsValid()) {
1.322 + mTextureSource->Lock();
1.323 + return true;
1.324 + }
1.325 + return false;
1.326 +}
1.327 +
1.328 +void
1.329 +GrallocTextureHostOGL::Unlock()
1.330 +{
1.331 + // Unlock is done internally by binding the texture to another gralloc buffer
1.332 +}
1.333 +
1.334 +bool
1.335 +GrallocTextureHostOGL::IsValid() const
1.336 +{
1.337 + return mTextureSource->IsValid();
1.338 +}
1.339 +
1.340 +gfx::SurfaceFormat
1.341 +GrallocTextureHostOGL::GetFormat() const
1.342 +{
1.343 + return mTextureSource->GetFormat();
1.344 +}
1.345 +
1.346 +void
1.347 +GrallocTextureHostOGL::DeallocateSharedData()
1.348 +{
1.349 + if (mTextureSource) {
1.350 + mTextureSource->ForgetBuffer();
1.351 + }
1.352 + if (mGrallocActor) {
1.353 + PGrallocBufferParent::Send__delete__(mGrallocActor);
1.354 + }
1.355 +}
1.356 +
1.357 +void
1.358 +GrallocTextureHostOGL::ForgetSharedData()
1.359 +{
1.360 + if (mTextureSource) {
1.361 + mTextureSource->ForgetBuffer();
1.362 + }
1.363 +}
1.364 +
1.365 +void
1.366 +GrallocTextureHostOGL::DeallocateDeviceData()
1.367 +{
1.368 + mTextureSource->DeallocateDeviceData();
1.369 +}
1.370 +
1.371 +LayerRenderState
1.372 +GrallocTextureHostOGL::GetRenderState()
1.373 +{
1.374 + if (IsValid()) {
1.375 + uint32_t flags = 0;
1.376 + if (mFlags & TEXTURE_NEEDS_Y_FLIP) {
1.377 + flags |= LAYER_RENDER_STATE_Y_FLIPPED;
1.378 + }
1.379 + if (mFlags & TEXTURE_RB_SWAPPED) {
1.380 + flags |= LAYER_RENDER_STATE_FORMAT_RB_SWAP;
1.381 + }
1.382 + return LayerRenderState(mTextureSource->mGraphicBuffer.get(),
1.383 + gfx::ThebesIntSize(mSize),
1.384 + flags,
1.385 + this);
1.386 + }
1.387 +
1.388 + return LayerRenderState();
1.389 +}
1.390 +
1.391 +TemporaryRef<gfx::DataSourceSurface>
1.392 +GrallocTextureHostOGL::GetAsSurface() {
1.393 + return mTextureSource ? mTextureSource->GetAsSurface()
1.394 + : nullptr;
1.395 +}
1.396 +
1.397 +TemporaryRef<gfx::DataSourceSurface>
1.398 +GrallocTextureSourceOGL::GetAsSurface() {
1.399 + if (!IsValid()) {
1.400 + return nullptr;
1.401 + }
1.402 + gl()->MakeCurrent();
1.403 +
1.404 + GLuint tex = GetGLTexture();
1.405 + gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
1.406 + gl()->fBindTexture(GetTextureTarget(), tex);
1.407 + if (!mEGLImage) {
1.408 + mEGLImage = EGLImageCreateFromNativeBuffer(gl(), mGraphicBuffer->getNativeBuffer());
1.409 + }
1.410 + gl()->fEGLImageTargetTexture2D(GetTextureTarget(), mEGLImage);
1.411 +
1.412 + RefPtr<gfx::DataSourceSurface> surf =
1.413 + IsValid() ? ReadBackSurface(gl(), tex, false, GetFormat())
1.414 + : nullptr;
1.415 +
1.416 + gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
1.417 + return surf.forget();
1.418 +}
1.419 +
1.420 +GLuint
1.421 +GrallocTextureSourceOGL::GetGLTexture()
1.422 +{
1.423 + if (mCompositableBackendData) {
1.424 + mCompositableBackendData->SetCompositor(mCompositor);
1.425 + return static_cast<CompositableDataGonkOGL*>(mCompositableBackendData.get())->GetTexture();
1.426 + }
1.427 +
1.428 + return mTexture;
1.429 +}
1.430 +
1.431 +void
1.432 +GrallocTextureHostOGL::SetCompositableBackendSpecificData(CompositableBackendSpecificData* aBackendData)
1.433 +{
1.434 + mCompositableBackendData = aBackendData;
1.435 + if (mTextureSource) {
1.436 + mTextureSource->SetCompositableBackendSpecificData(aBackendData);
1.437 + }
1.438 + // Register this object to CompositableBackendSpecificData
1.439 + // as current TextureHost.
1.440 + if (aBackendData) {
1.441 + aBackendData->SetCurrentReleaseFenceTexture(this);
1.442 + }
1.443 +}
1.444 +
1.445 +} // namepsace layers
1.446 +} // namepsace mozilla
