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