| // Copyright (C) 2015 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "EmulatedEglConfig.h" |
| |
| #include "OpenGLESDispatch/EGLDispatch.h" |
| #include "host-common/opengl/emugl_config.h" |
| #include "host-common/feature_control.h" |
| #include "host-common/logging.h" |
| #include "host-common/misc.h" |
| #include "host-common/opengl/misc.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| namespace gfxstream { |
| namespace gl { |
| namespace { |
| |
| #ifndef EGL_PRESERVED_RESOURCES |
| #define EGL_PRESERVED_RESOURCES 0x3030 |
| #endif |
| |
| const GLuint kConfigAttributes[] = { |
| EGL_DEPTH_SIZE, // must be first - see getDepthSize() |
| EGL_STENCIL_SIZE, // must be second - see getStencilSize() |
| EGL_RENDERABLE_TYPE,// must be third - see getRenderableType() |
| EGL_SURFACE_TYPE, // must be fourth - see getSurfaceType() |
| EGL_CONFIG_ID, // must be fifth - see chooseConfig() |
| EGL_BUFFER_SIZE, |
| EGL_ALPHA_SIZE, |
| EGL_BLUE_SIZE, |
| EGL_GREEN_SIZE, |
| EGL_RED_SIZE, |
| EGL_CONFIG_CAVEAT, |
| EGL_LEVEL, |
| EGL_MAX_PBUFFER_HEIGHT, |
| EGL_MAX_PBUFFER_PIXELS, |
| EGL_MAX_PBUFFER_WIDTH, |
| EGL_NATIVE_RENDERABLE, |
| EGL_NATIVE_VISUAL_ID, |
| EGL_NATIVE_VISUAL_TYPE, |
| EGL_PRESERVED_RESOURCES, |
| EGL_SAMPLES, |
| EGL_SAMPLE_BUFFERS, |
| EGL_TRANSPARENT_TYPE, |
| EGL_TRANSPARENT_BLUE_VALUE, |
| EGL_TRANSPARENT_GREEN_VALUE, |
| EGL_TRANSPARENT_RED_VALUE, |
| EGL_BIND_TO_TEXTURE_RGB, |
| EGL_BIND_TO_TEXTURE_RGBA, |
| EGL_MIN_SWAP_INTERVAL, |
| EGL_MAX_SWAP_INTERVAL, |
| EGL_LUMINANCE_SIZE, |
| EGL_ALPHA_MASK_SIZE, |
| EGL_COLOR_BUFFER_TYPE, |
| //EGL_MATCH_NATIVE_PIXMAP, |
| EGL_RECORDABLE_ANDROID, |
| EGL_CONFORMANT |
| }; |
| |
| const size_t kConfigAttributesLen = |
| sizeof(kConfigAttributes) / sizeof(kConfigAttributes[0]); |
| |
| bool isCompatibleHostConfig(EGLConfig config, EGLDisplay display) { |
| // Filter out configs which do not support pbuffers, since they |
| // are used to implement window surfaces. |
| EGLint surfaceType; |
| s_egl.eglGetConfigAttrib( |
| display, config, EGL_SURFACE_TYPE, &surfaceType); |
| if (!(surfaceType & EGL_PBUFFER_BIT)) { |
| return false; |
| } |
| |
| // Filter out configs that do not support RGB pixel values. |
| EGLint redSize = 0, greenSize = 0, blueSize = 0; |
| s_egl.eglGetConfigAttrib( |
| display, config,EGL_RED_SIZE, &redSize); |
| s_egl.eglGetConfigAttrib( |
| display, config, EGL_GREEN_SIZE, &greenSize); |
| s_egl.eglGetConfigAttrib( |
| display, config, EGL_BLUE_SIZE, &blueSize); |
| if (!redSize || !greenSize || !blueSize) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } // namespace |
| |
| EmulatedEglConfig::EmulatedEglConfig(EGLint guestConfig, |
| EGLConfig hostConfig, |
| EGLDisplay hostDisplay) |
| : mGuestConfig(guestConfig), |
| mHostConfig(hostConfig), |
| mAttribValues(kConfigAttributesLen) { |
| for (size_t i = 0; i < kConfigAttributesLen; ++i) { |
| mAttribValues[i] = 0; |
| s_egl.eglGetConfigAttrib(hostDisplay, |
| hostConfig, |
| kConfigAttributes[i], |
| &mAttribValues[i]); |
| |
| // This implementation supports guest window surfaces by wrapping |
| // them around host Pbuffers, so always report it to the guest. |
| if (kConfigAttributes[i] == EGL_SURFACE_TYPE) { |
| mAttribValues[i] |= EGL_WINDOW_BIT; |
| } |
| |
| // Don't report ES3 renderable type if we don't support it. |
| if (kConfigAttributes[i] == EGL_RENDERABLE_TYPE) { |
| if (!feature_is_enabled( |
| kFeature_GLESDynamicVersion) && |
| mAttribValues[i] & EGL_OPENGL_ES3_BIT) { |
| mAttribValues[i] &= ~EGL_OPENGL_ES3_BIT; |
| } |
| } |
| } |
| } |
| |
| EmulatedEglConfigList::EmulatedEglConfigList(EGLDisplay display, |
| GLESDispatchMaxVersion version) |
| : mDisplay(display), mGlesDispatchMaxVersion(version) { |
| if (display == EGL_NO_DISPLAY) { |
| ERR("Invalid display value %p (EGL_NO_DISPLAY).", (void*)display); |
| return; |
| } |
| |
| EGLint numHostConfigs = 0; |
| if (!s_egl.eglGetConfigs(display, NULL, 0, &numHostConfigs)) { |
| ERR("Failed to get number of host EGL configs."); |
| return; |
| } |
| std::vector<EGLConfig> hostConfigs(numHostConfigs); |
| s_egl.eglGetConfigs(display, hostConfigs.data(), numHostConfigs, &numHostConfigs); |
| |
| for (EGLConfig hostConfig : hostConfigs) { |
| // Filter out configs that are not compatible with our implementation. |
| if (!isCompatibleHostConfig(hostConfig, display)) { |
| continue; |
| } |
| |
| const EGLint guestConfig = static_cast<EGLint>(mConfigs.size()); |
| mConfigs.push_back(EmulatedEglConfig(guestConfig, hostConfig, display)); |
| } |
| } |
| |
| int EmulatedEglConfigList::chooseConfig(const EGLint* attribs, |
| EGLint* configs, |
| EGLint configsSize) const { |
| EGLint numHostConfigs = 0; |
| if (!s_egl.eglGetConfigs(mDisplay, NULL, 0, &numHostConfigs)) { |
| ERR("Failed to get number of host EGL configs."); |
| return 0; |
| } |
| |
| // If EGL_SURFACE_TYPE appears in |attribs|, the value passed to |
| // eglChooseConfig should be forced to EGL_PBUFFER_BIT because that's |
| // what it used by the current implementation, exclusively. This forces |
| // the rewrite of |attribs| into a new array. |
| bool hasSurfaceType = false; |
| bool wantSwapPreserved = false; |
| int surfaceTypeIdx = 0; |
| int numAttribs = 0; |
| std::vector<EGLint> newAttribs; |
| while (attribs[numAttribs] != EGL_NONE) { |
| if (attribs[numAttribs] == EGL_SURFACE_TYPE) { |
| hasSurfaceType = true; |
| surfaceTypeIdx = numAttribs; |
| if (attribs[numAttribs+1] & EGL_SWAP_BEHAVIOR_PRESERVED_BIT) { |
| wantSwapPreserved = true; |
| } |
| } |
| |
| // Reject config if guest asked for ES3 and we don't have it. |
| if (attribs[numAttribs] == EGL_RENDERABLE_TYPE) { |
| if (attribs[numAttribs + 1] != EGL_DONT_CARE && |
| attribs[numAttribs + 1] & EGL_OPENGL_ES3_BIT_KHR && |
| (!feature_is_enabled( |
| kFeature_GLESDynamicVersion) || |
| mGlesDispatchMaxVersion < |
| GLES_DISPATCH_MAX_VERSION_3_0)) { |
| return 0; |
| } |
| } |
| numAttribs += 2; |
| } |
| |
| if (numAttribs) { |
| newAttribs.resize(numAttribs); |
| memcpy(&newAttribs[0], attribs, numAttribs * sizeof(EGLint)); |
| } |
| |
| int apiLevel; |
| emugl::getAvdInfo(NULL, &apiLevel); |
| |
| if (!hasSurfaceType) { |
| newAttribs.push_back(EGL_SURFACE_TYPE); |
| newAttribs.push_back(0); |
| } else if (wantSwapPreserved && apiLevel <= 19) { |
| newAttribs[surfaceTypeIdx + 1] &= ~(EGLint)EGL_SWAP_BEHAVIOR_PRESERVED_BIT; |
| } |
| if (emugl::getRenderer() == SELECTED_RENDERER_SWIFTSHADER || |
| emugl::getRenderer() == SELECTED_RENDERER_SWIFTSHADER_INDIRECT || |
| emugl::getRenderer() == SELECTED_RENDERER_ANGLE || |
| emugl::getRenderer() == SELECTED_RENDERER_ANGLE_INDIRECT) { |
| newAttribs.push_back(EGL_CONFIG_CAVEAT); |
| newAttribs.push_back(EGL_DONT_CARE); |
| } |
| |
| newAttribs.push_back(EGL_NONE); |
| |
| |
| std::vector<EGLConfig> matchedConfigs(numHostConfigs); |
| if (s_egl.eglChooseConfig(mDisplay, |
| &newAttribs[0], |
| matchedConfigs.data(), |
| numHostConfigs, |
| &numHostConfigs) == EGL_FALSE) { |
| return -s_egl.eglGetError(); |
| } |
| |
| int result = 0; |
| for (int n = 0; n < numHostConfigs; ++n) { |
| // Don't count or write more than |configsSize| items if |configs| |
| // is not NULL. |
| if (configs && configsSize > 0 && result >= configsSize) { |
| break; |
| } |
| // Skip incompatible host configs. |
| if (!isCompatibleHostConfig(matchedConfigs[n], mDisplay)) { |
| continue; |
| } |
| // Find the EmulatedEglConfig with the same EGL_CONFIG_ID |
| EGLint hostConfigId; |
| s_egl.eglGetConfigAttrib( |
| mDisplay, matchedConfigs[n], EGL_CONFIG_ID, &hostConfigId); |
| for (const EmulatedEglConfig& config : mConfigs) { |
| if (config.getConfigId() == hostConfigId) { |
| // There is a match. Write it to |configs| if it is not NULL. |
| if (configs && result < configsSize) { |
| configs[result] = config.getGuestEglConfig(); |
| } |
| result++; |
| break; |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| |
| void EmulatedEglConfigList::getPackInfo(EGLint* numConfigs, |
| EGLint* numAttributes) const { |
| if (numConfigs) { |
| *numConfigs = mConfigs.size(); |
| } |
| if (numAttributes) { |
| *numAttributes = static_cast<EGLint>(kConfigAttributesLen); |
| } |
| } |
| |
| EGLint EmulatedEglConfigList::packConfigs(GLuint bufferByteSize, GLuint* buffer) const { |
| GLuint numAttribs = static_cast<GLuint>(kConfigAttributesLen); |
| GLuint kGLuintSize = static_cast<GLuint>(sizeof(GLuint)); |
| GLuint neededByteSize = (mConfigs.size() + 1) * numAttribs * kGLuintSize; |
| if (!buffer || bufferByteSize < neededByteSize) { |
| return -neededByteSize; |
| } |
| // Write to the buffer the config attribute ids, followed for each one |
| // of the configs, their values. |
| memcpy(buffer, kConfigAttributes, kConfigAttributesLen * kGLuintSize); |
| |
| for (int i = 0; i < mConfigs.size(); ++i) { |
| memcpy(buffer + (i + 1) * kConfigAttributesLen, |
| mConfigs[i].mAttribValues.data(), |
| kConfigAttributesLen * kGLuintSize); |
| } |
| return mConfigs.size(); |
| } |
| |
| } // namespace gl |
| } // namespace gfxstream |
