CPU点屏指导
版本要求:4.0 release及之前版本。
当前只有4.0之前的版本可以支持CPU点屏,4.1开始之后的版本包括master暂时不支持CPU点屏。
原因:4.1release开始,OHOS的arkui自己实现了flutter相关的API,摆脱了对flutter的依赖,所以框架内删除了flutter的三方库组件。但是CPU点屏依然使用了其中部分API,所以在4.1之后的版本上进行CPU点屏会出现flutter、skia等API相关报错。
注意:4.1 release解决方案,待后续更新。
点屏流程
点屏实操
编译阶段
从编译框架的层面将原本的GPU点屏模式改为CPU点屏模式。
路径1:vendor/hihope/rk3568/config.json
修改目的:
- 关闭selinux,避免点屏操作被安全机制拒绝。
- 去掉对GPU的依赖。
diff --git a/rk3568/config.json b/rk3568/config.json index ea2d588..21b5ec2 100755 --- a/rk3568/config.json +++ b/rk3568/config.json @@ -9,7 +9,7 @@"api_version": 8,"enable_ramdisk": true,"enable_absystem": false, - "build_selinux": true, + "build_selinux": false,"build_seccomp": true,"inherit": [ "productdefine/common/inherit/rich.json", "productdefine/common/inherit/chipset_common.json" ],"subsystems": [ @@ -64,7 +64,7 @@"component": "ace_engine","features": ["ace_engine_feature_enable_accessibility = true", - "ace_engine_feature_enable_web = true" + "ace_engine_feature_enable_web = false"]},{ @@ -200,7 +200,7 @@{"component": "graphic_2d","features": [ - "graphic_2d_feature_rs_enable_eglimage = true" + "graphic_2d_feature_rs_enable_eglimage = false"]}]
路径2:productdefine/common/inherit/rich.json
修改目的:
- 切换点屏模式。
- 4.0 release版本的fingerprint_auth组件对GPU有依赖,需要裁掉此组件。
diff --git a/inherit/rich.json b/inherit/rich.json index 255af7f..5549de9 100644 --- a/inherit/rich.json +++ b/inherit/rich.json @@ -501,7 +501,7 @@{"component": "graphic_2d","features": [ - "graphic_2d_feature_ace_enable_gpu = true" + "graphic_2d_feature_ace_enable_gpu = false"]},{ @@ -533,10 +533,6 @@{"component": "face_auth","features": [] - }, - { - "component": "fingerprint_auth", - "features": []}]}, @@ -1012,10 +1008,6 @@"component": "drivers_interface_user_auth","features": []}, - { - "component": "drivers_interface_fingerprint_auth", - "features": [] - },{"component": "drivers_interface_huks","feature":[]
路径3:foundation/graphic/graphic_2d/graphic_config.gni
修改目的:
- 切换点屏模式。
- 去掉对GPU的依赖。
- 解决编译报错问题。此参数在GPU点屏时,会在GPU的分支中进行定义,后续脚本中会对此参数进行判断。切换成CPU之后,没有定义此参数,直接进行了判断,所以报错。
diff --git a/graphic_config.gni b/graphic_config.gni index f7b7b3bdb..cf220aaff 100644 --- a/graphic_config.gni +++ b/graphic_config.gni @@ -13,14 +13,14 @@declare_args() {graphic_2d_feature_bootanimation_enable = true - graphic_2d_feature_ace_enable_gpu = true + graphic_2d_feature_ace_enable_gpu = falsegraphic_2d_feature_color_gamut_enable = falsegraphic_2d_feature_rs_enable_eglimage = falsegraphic_2d_feature_rs_enable_uni_render = falsegraphic_2d_feature_wuji_enable = falsegraphic_2d_feature_enable_afbc = falsegraphic_2d_feature_freemem_enable = false - graphic_2d_feature_parallel_render_enable = true + graphic_2d_feature_parallel_render_enable = falsegraphic_2d_feature_enable_vulkan = falseif (defined(is_arkui_x) && is_arkui_x) {use_new_render_context = false @@ -65,6 +65,7 @@ if (graphic_2d_feature_ace_enable_gpu) {}} else {gpu_defines = [ "ACE_DISABLE_GL" ] + rs_enable_parallel_render = falseace_enable_gpu = falsers_enable_gpu = falsesurface_enable_gpu = false
路径:foundation/graphic/graphic_2d/rosen/modules/render_service_base/BUILD.gn
修改目的:
- 解决编译中报错问题。此处的cpp源文件在GPU模式下,会被添加到config列表中。但是切换为CPU模式后,CPU分支没有引用此文件,所以在已经生效的config列表中找不到此文件,所以无法进行"sources-"的操作,最终导致报错。
diff --git a/rosen/modules/render_service_base/BUILD.gn b/rosen/modules/render_service_base/BUILD.gn index 900f4d903..2ea222a40 100644 --- a/rosen/modules/render_service_base/BUILD.gn +++ b/rosen/modules/render_service_base/BUILD.gn @@ -243,7 +243,7 @@ ohos_source_set("render_service_base_src") {if (current_os == "mingw" || current_os == "mac" || current_os == "linux" ||current_os == "ios") { - sources -= [ "src/common/rs_shared_context.cpp" ] + # sources -= [ "src/common/rs_shared_context.cpp" ]}if (current_os == "ohos") {
功能实现
路径:device/soc/rockchip/rk3568/hardware/display/src/display_device/hdi_gfx_composition.cpp
修改目的:
- 引用头文件,定义"IDisplayBufferVdi"。
- 进行CPU点屏时,canhandle需要返回false,否则合成会出现异常卡在开机动画界面(hello_composer测试时需要改为true)。
- 实现了一个简单的合成动作。将多个图层合成为一张图,并送到显示的buff中。如果不做修改会出现开机进入桌面无法操作的现象。
diff --git a/rk3568/hardware/display/src/display_device/hdi_gfx_composition.cpp b/rk3568/hardware/display/src/display_device/hdi_gfx_composition.cpp index 93d9174..11b207a 100644 --- a/rk3568/hardware/display/src/display_device/hdi_gfx_composition.cpp +++ b/rk3568/hardware/display/src/display_device/hdi_gfx_composition.cpp @@ -22,6 +22,8 @@#include "hitrace_meter.h"#include "v1_0/display_composer_type.h"+#include "display_buffer_vdi_impl.h" +using namespace OHOS::HDI::Display::Composer::V1_0;namespace OHOS { @@ -84,7 +86,8 @@ bool HdiGfxComposition::CanHandle(HdiLayer &hdiLayer){DISPLAY_LOGD();(void)hdiLayer; - return true; + // return true; + return false;}bool HdiGfxComposition::UseCompositionClient(std::vector<HdiLayer *> &layers) @@ -202,7 +205,8 @@ int32_t HdiGfxComposition::Apply(bool modeSet){StartTrace(HITRACE_TAG_HDF, "HDI:DISP:Apply");int32_t ret; - DISPLAY_LOGD("composer layers size %{public}zd", mCompLayers.size()); + static std::shared_ptr<IDisplayBufferVdi> g_buffer = nullptr; + DISPLAY_LOGD("map composer layers size %{public}zd", mCompLayers.size());for (uint32_t i = 0; i < mCompLayers.size(); i++) {HdiLayer *layer = mCompLayers[i];CompositionType compType = layer->GetCompositionType(); @@ -213,9 +217,32 @@ int32_t HdiGfxComposition::Apply(bool modeSet)DISPLAY_LOGE("clear layer %{public}d failed", i));break;case COMPOSITION_DEVICE: - ret = BlitLayer(*layer, *mClientLayer); - DISPLAY_CHK_RETURN((ret != DISPLAY_SUCCESS), DISPLAY_FAILURE, - DISPLAY_LOGE("blit layer %{public}d failed ", i)); + // ret = BlitLayer(*layer, *mClientLayer); + // DISPLAY_CHK_RETURN((ret != DISPLAY_SUCCESS), DISPLAY_FAILURE, + // DISPLAY_LOGE("blit layer %{public}d failed ", i)); + { + if (g_buffer== nullptr) { + IDisplayBufferVdi* dispBuf = new DisplayBufferVdiImpl(); + DISPLAY_CHK_RETURN((dispBuf == nullptr), DISPLAY_FAILURE, DISPLAY_LOGE("map dispBuf init failed")); + g_buffer.reset(dispBuf); + DISPLAY_LOGD("map new DisplayBufferVdiImpl"); + } + char *clientBuff = (char *)g_buffer->Mmap(mClientLayer->GetCurrentBuffer()->mHandle); + if(clientBuff) { + DISPLAY_LOGD("map in int"); + HdiLayerBuffer *hdiLayer = layer->GetCurrentBuffer(); + char *layerBuff = (char *)g_buffer->Mmap(hdiLayer->mHandle); + for(int y = 0; y < hdiLayer->GetHeight(); y++) { + memcpy(&clientBuff[mClientLayer->GetCurrentBuffer()->GetStride() * + (y + layer->GetLayerDisplayRect().y) + layer->GetLayerDisplayRect().x * 4], + (char *)(&layerBuff[hdiLayer->GetStride() * y]), hdiLayer->GetStride()); + } + g_buffer->Unmap(hdiLayer->mHandle); + g_buffer->Unmap(mClientLayer->GetCurrentBuffer()->mHandle); + } else { + DISPLAY_LOGD("map in err"); + } + }break;default:DISPLAY_LOGE("the gfx composition can not surpport the type %{public}d", compType); @@ -225,6 +252,7 @@ int32_t HdiGfxComposition::Apply(bool modeSet)FinishTrace(HITRACE_TAG_HDF);return DISPLAY_SUCCESS;} +} // namespace OHOS} // namespace HDI} // namespace DISPLAY