/* * Mesa 3-D graphics library * * Copyright (C) 2010-2011 Chia-I Wu * Copyright (C) 2010-2011 LunarG Inc. * * Based on platform_x11, which has * * Copyright © 2011 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include "util/compiler.h" #include "util/os_file.h" #include "loader.h" #include "egl_dri2.h" #include "platform_android.h" #ifdef HAVE_DRM_GRALLOC #include #include "gralloc_drm.h" #endif /* HAVE_DRM_GRALLOC */ #define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1)) enum chroma_order { YCbCr, YCrCb, }; struct droid_yuv_format { /* Lookup keys */ int native; /* HAL_PIXEL_FORMAT_ */ enum chroma_order chroma_order; /* chroma order is {Cb, Cr} or {Cr, Cb} */ int chroma_step; /* Distance in bytes between subsequent chroma pixels. */ /* Result */ int fourcc; /* DRM_FORMAT_ */ }; /* The following table is used to look up a DRI image FourCC based * on native format and information contained in android_ycbcr struct. */ static const struct droid_yuv_format droid_yuv_formats[] = { /* Native format, YCrCb, Chroma step, DRI image FourCC */ { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 2, DRM_FORMAT_NV12 }, { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 1, DRM_FORMAT_YUV420 }, { HAL_PIXEL_FORMAT_YCbCr_420_888, YCrCb, 1, DRM_FORMAT_YVU420 }, { HAL_PIXEL_FORMAT_YV12, YCrCb, 1, DRM_FORMAT_YVU420 }, /* HACK: See droid_create_image_from_prime_fds() and * https://issuetracker.google.com/32077885. */ { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 2, DRM_FORMAT_NV12 }, { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 1, DRM_FORMAT_YUV420 }, { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_YVU420 }, { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_AYUV }, { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_XYUV8888 }, }; static int get_fourcc_yuv(int native, enum chroma_order chroma_order, int chroma_step) { for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i) if (droid_yuv_formats[i].native == native && droid_yuv_formats[i].chroma_order == chroma_order && droid_yuv_formats[i].chroma_step == chroma_step) return droid_yuv_formats[i].fourcc; return -1; } static bool is_yuv(int native) { for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i) if (droid_yuv_formats[i].native == native) return true; return false; } static int get_format_bpp(int native) { int bpp; switch (native) { case HAL_PIXEL_FORMAT_RGBA_FP16: bpp = 8; break; case HAL_PIXEL_FORMAT_RGBA_8888: case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: /* * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack. * TODO: Remove this once https://issuetracker.google.com/32077885 is fixed. */ case HAL_PIXEL_FORMAT_RGBX_8888: case HAL_PIXEL_FORMAT_BGRA_8888: case HAL_PIXEL_FORMAT_RGBA_1010102: bpp = 4; break; case HAL_PIXEL_FORMAT_RGB_565: bpp = 2; break; default: bpp = 0; break; } return bpp; } /* createImageFromFds requires fourcc format */ static int get_fourcc(int native) { switch (native) { case HAL_PIXEL_FORMAT_RGB_565: return DRM_FORMAT_RGB565; case HAL_PIXEL_FORMAT_BGRA_8888: return DRM_FORMAT_ARGB8888; case HAL_PIXEL_FORMAT_RGBA_8888: return DRM_FORMAT_ABGR8888; case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: /* * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack. * TODO: Remove this once https://issuetracker.google.com/32077885 is fixed. */ case HAL_PIXEL_FORMAT_RGBX_8888: return DRM_FORMAT_XBGR8888; case HAL_PIXEL_FORMAT_RGBA_FP16: return DRM_FORMAT_ABGR16161616F; case HAL_PIXEL_FORMAT_RGBA_1010102: return DRM_FORMAT_ABGR2101010; default: _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native); } return -1; } /* returns # of fds, and by reference the actual fds */ static unsigned get_native_buffer_fds(struct ANativeWindowBuffer *buf, int fds[3]) { native_handle_t *handle = (native_handle_t *)buf->handle; if (!handle) return 0; /* * Various gralloc implementations exist, but the dma-buf fd tends * to be first. Access it directly to avoid a dependency on specific * gralloc versions. */ for (int i = 0; i < handle->numFds; i++) fds[i] = handle->data[i]; return handle->numFds; } #ifdef HAVE_DRM_GRALLOC static int get_native_buffer_name(struct ANativeWindowBuffer *buf) { return gralloc_drm_get_gem_handle(buf->handle); } #endif /* HAVE_DRM_GRALLOC */ static int get_yuv_buffer_info(struct dri2_egl_display *dri2_dpy, struct ANativeWindowBuffer *buf, struct buffer_info *out_buf_info) { struct android_ycbcr ycbcr; enum chroma_order chroma_order; int drm_fourcc = 0; int num_fds = 0; int fds[3]; int ret; num_fds = get_native_buffer_fds(buf, fds); if (num_fds == 0) return -EINVAL; if (!dri2_dpy->gralloc->lock_ycbcr) { _eglLog(_EGL_WARNING, "Gralloc does not support lock_ycbcr"); return -EINVAL; } memset(&ycbcr, 0, sizeof(ycbcr)); ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle, 0, 0, 0, 0, 0, &ycbcr); if (ret) { /* HACK: See native_window_buffer_get_buffer_info() and * https://issuetracker.google.com/32077885.*/ if (buf->format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) return -EAGAIN; _eglLog(_EGL_WARNING, "gralloc->lock_ycbcr failed: %d", ret); return -EINVAL; } dri2_dpy->gralloc->unlock(dri2_dpy->gralloc, buf->handle); chroma_order = ((size_t)ycbcr.cr < (size_t)ycbcr.cb) ? YCrCb : YCbCr; /* .chroma_step is the byte distance between the same chroma channel * values of subsequent pixels, assumed to be the same for Cb and Cr. */ drm_fourcc = get_fourcc_yuv(buf->format, chroma_order, ycbcr.chroma_step); if (drm_fourcc == -1) { _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, chroma_order = %s, chroma_step = %d", buf->format, chroma_order == YCbCr ? "YCbCr" : "YCrCb", ycbcr.chroma_step); return -EINVAL; } *out_buf_info = (struct buffer_info){ .width = buf->width, .height = buf->height, .drm_fourcc = drm_fourcc, .num_planes = ycbcr.chroma_step == 2 ? 2 : 3, .fds = { -1, -1, -1, -1 }, .modifier = DRM_FORMAT_MOD_INVALID, .yuv_color_space = EGL_ITU_REC601_EXT, .sample_range = EGL_YUV_NARROW_RANGE_EXT, .horizontal_siting = EGL_YUV_CHROMA_SITING_0_EXT, .vertical_siting = EGL_YUV_CHROMA_SITING_0_EXT, }; /* When lock_ycbcr's usage argument contains no SW_READ/WRITE flags * it will return the .y/.cb/.cr pointers based on a NULL pointer, * so they can be interpreted as offsets. */ out_buf_info->offsets[0] = (size_t)ycbcr.y; /* We assume here that all the planes are located in one DMA-buf. */ if (chroma_order == YCrCb) { out_buf_info->offsets[1] = (size_t)ycbcr.cr; out_buf_info->offsets[2] = (size_t)ycbcr.cb; } else { out_buf_info->offsets[1] = (size_t)ycbcr.cb; out_buf_info->offsets[2] = (size_t)ycbcr.cr; } /* .ystride is the line length (in bytes) of the Y plane, * .cstride is the line length (in bytes) of any of the remaining * Cb/Cr/CbCr planes, assumed to be the same for Cb and Cr for fully * planar formats. */ out_buf_info->pitches[0] = ycbcr.ystride; out_buf_info->pitches[1] = out_buf_info->pitches[2] = ycbcr.cstride; /* * Since this is EGL_NATIVE_BUFFER_ANDROID don't assume that * the single-fd case cannot happen. So handle eithe single * fd or fd-per-plane case: */ if (num_fds == 1) { out_buf_info->fds[1] = out_buf_info->fds[0] = fds[0]; if (out_buf_info->num_planes == 3) out_buf_info->fds[2] = fds[0]; } else { assert(num_fds == out_buf_info->num_planes); out_buf_info->fds[0] = fds[0]; out_buf_info->fds[1] = fds[1]; out_buf_info->fds[2] = fds[2]; } return 0; } static int native_window_buffer_get_buffer_info(struct dri2_egl_display *dri2_dpy, struct ANativeWindowBuffer *buf, struct buffer_info *out_buf_info) { int num_planes = 0; int drm_fourcc = 0; int pitch = 0; int fds[3]; if (is_yuv(buf->format)) { int ret = get_yuv_buffer_info(dri2_dpy, buf, out_buf_info); /* * HACK: https://issuetracker.google.com/32077885 * There is no API available to properly query the IMPLEMENTATION_DEFINED * format. As a workaround we rely here on gralloc allocating either * an arbitrary YCbCr 4:2:0 or RGBX_8888, with the latter being recognized * by lock_ycbcr failing. */ if (ret != -EAGAIN) return ret; } /* * Non-YUV formats could *also* have multiple planes, such as ancillary * color compression state buffer, but the rest of the code isn't ready * yet to deal with modifiers: */ num_planes = get_native_buffer_fds(buf, fds); if (num_planes == 0) return -EINVAL; assert(num_planes == 1); drm_fourcc = get_fourcc(buf->format); if (drm_fourcc == -1) { _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR"); return -EINVAL; } pitch = buf->stride * get_format_bpp(buf->format); if (pitch == 0) { _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR"); return -EINVAL; } *out_buf_info = (struct buffer_info){ .width = buf->width, .height = buf->height, .drm_fourcc = drm_fourcc, .num_planes = num_planes, .fds = { fds[0], -1, -1, -1 }, .modifier = DRM_FORMAT_MOD_INVALID, .offsets = { 0, 0, 0, 0 }, .pitches = { pitch, 0, 0, 0 }, .yuv_color_space = EGL_ITU_REC601_EXT, .sample_range = EGL_YUV_NARROW_RANGE_EXT, .horizontal_siting = EGL_YUV_CHROMA_SITING_0_EXT, .vertical_siting = EGL_YUV_CHROMA_SITING_0_EXT, }; return 0; } /* More recent CrOS gralloc has a perform op that fills out the struct below * with canonical information about the buffer and its modifier, planes, * offsets and strides. If we have this, we can skip straight to * createImageFromDmaBufs2() and avoid all the guessing and recalculations. * This also gives us the modifier and plane offsets/strides for multiplanar * compressed buffers (eg Intel CCS buffers) in order to make that work in Android. */ static const char cros_gralloc_module_name[] = "CrOS Gralloc"; #define CROS_GRALLOC_DRM_GET_BUFFER_INFO 4 #define CROS_GRALLOC_DRM_GET_USAGE 5 #define CROS_GRALLOC_DRM_GET_USAGE_FRONT_RENDERING_BIT 0x1 struct cros_gralloc0_buffer_info { uint32_t drm_fourcc; int num_fds; int fds[4]; uint64_t modifier; int offset[4]; int stride[4]; }; static int cros_get_buffer_info(struct dri2_egl_display *dri2_dpy, struct ANativeWindowBuffer *buf, struct buffer_info *out_buf_info) { struct cros_gralloc0_buffer_info info; if (strcmp(dri2_dpy->gralloc->common.name, cros_gralloc_module_name) == 0 && dri2_dpy->gralloc->perform && dri2_dpy->gralloc->perform(dri2_dpy->gralloc, CROS_GRALLOC_DRM_GET_BUFFER_INFO, buf->handle, &info) == 0) { *out_buf_info = (struct buffer_info){ .width = buf->width, .height = buf->height, .drm_fourcc = info.drm_fourcc, .num_planes = info.num_fds, .fds = { -1, -1, -1, -1 }, .modifier = info.modifier, .yuv_color_space = EGL_ITU_REC601_EXT, .sample_range = EGL_YUV_NARROW_RANGE_EXT, .horizontal_siting = EGL_YUV_CHROMA_SITING_0_EXT, .vertical_siting = EGL_YUV_CHROMA_SITING_0_EXT, }; for (int i = 0; i < out_buf_info->num_planes; i++) { out_buf_info->fds[i] = info.fds[i]; out_buf_info->offsets[i] = info.offset[i]; out_buf_info->pitches[i] = info.stride[i]; } return 0; } return -EINVAL; } static __DRIimage * droid_create_image_from_buffer_info(struct dri2_egl_display *dri2_dpy, struct buffer_info *buf_info, void *priv) { unsigned error; if (dri2_dpy->image->base.version >= 15 && dri2_dpy->image->createImageFromDmaBufs2 != NULL) { return dri2_dpy->image->createImageFromDmaBufs2( dri2_dpy->dri_screen, buf_info->width, buf_info->height, buf_info->drm_fourcc, buf_info->modifier, buf_info->fds, buf_info->num_planes, buf_info->pitches, buf_info->offsets, buf_info->yuv_color_space, buf_info->sample_range, buf_info->horizontal_siting, buf_info->vertical_siting, &error, priv); } return dri2_dpy->image->createImageFromDmaBufs( dri2_dpy->dri_screen, buf_info->width, buf_info->height, buf_info->drm_fourcc, buf_info->fds, buf_info->num_planes, buf_info->pitches, buf_info->offsets, buf_info->yuv_color_space, buf_info->sample_range, buf_info->horizontal_siting, buf_info->vertical_siting, &error, priv); } static __DRIimage * droid_create_image_from_native_buffer(_EGLDisplay *disp, struct ANativeWindowBuffer *buf, void *priv) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct buffer_info buf_info; __DRIimage *img = NULL; /* If dri driver is gallium virgl, real modifier info queried back from * CrOS info (and potentially mapper metadata if integrated later) cannot * get resolved and the buffer import will fail. Thus the fallback behavior * is preserved down to native_window_buffer_get_buffer_info() so that the * buffer can be imported without modifier info as a last resort. */ if (!img && !mapper_metadata_get_buffer_info(buf, &buf_info)) img = droid_create_image_from_buffer_info(dri2_dpy, &buf_info, priv); if (!img && !cros_get_buffer_info(dri2_dpy, buf, &buf_info)) img = droid_create_image_from_buffer_info(dri2_dpy, &buf_info, priv); if (!img && !native_window_buffer_get_buffer_info(dri2_dpy, buf, &buf_info)) img = droid_create_image_from_buffer_info(dri2_dpy, &buf_info, priv); return img; } static EGLBoolean droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf) { int fence_fd; if (ANativeWindow_dequeueBuffer(dri2_surf->window, &dri2_surf->buffer, &fence_fd)) return EGL_FALSE; /* If access to the buffer is controlled by a sync fence, then block on the * fence. * * It may be more performant to postpone blocking until there is an * immediate need to write to the buffer. But doing so would require adding * hooks to the DRI2 loader. * * From the ANativeWindow_dequeueBuffer documentation: * * The libsync fence file descriptor returned in the int pointed to by * the fenceFd argument will refer to the fence that must signal * before the dequeued buffer may be written to. A value of -1 * indicates that the caller may access the buffer immediately without * waiting on a fence. If a valid file descriptor is returned (i.e. * any value except -1) then the caller is responsible for closing the * file descriptor. */ if (fence_fd >= 0) { /* From the SYNC_IOC_WAIT documentation in : * * Waits indefinitely if timeout < 0. */ int timeout = -1; sync_wait(fence_fd, timeout); close(fence_fd); } /* Record all the buffers created by ANativeWindow and update back buffer * for updating buffer's age in swap_buffers. */ EGLBoolean updated = EGL_FALSE; for (int i = 0; i < dri2_surf->color_buffers_count; i++) { if (!dri2_surf->color_buffers[i].buffer) { dri2_surf->color_buffers[i].buffer = dri2_surf->buffer; } if (dri2_surf->color_buffers[i].buffer == dri2_surf->buffer) { dri2_surf->back = &dri2_surf->color_buffers[i]; updated = EGL_TRUE; break; } } if (!updated) { /* In case of all the buffers were recreated by ANativeWindow, reset * the color_buffers */ for (int i = 0; i < dri2_surf->color_buffers_count; i++) { dri2_surf->color_buffers[i].buffer = NULL; dri2_surf->color_buffers[i].age = 0; } dri2_surf->color_buffers[0].buffer = dri2_surf->buffer; dri2_surf->back = &dri2_surf->color_buffers[0]; } return EGL_TRUE; } static EGLBoolean droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); /* To avoid blocking other EGL calls, release the display mutex before * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon * return. */ mtx_unlock(&disp->Mutex); /* Queue the buffer with stored out fence fd. The ANativeWindow or buffer * consumer may choose to wait for the fence to signal before accessing * it. If fence fd value is -1, buffer can be accessed by consumer * immediately. Consumer or application shouldn't rely on timestamp * associated with fence if the fence fd is -1. * * Ownership of fd is transferred to consumer after queueBuffer and the * consumer is responsible for closing it. Caller must not use the fd * after passing it to queueBuffer. */ int fence_fd = dri2_surf->out_fence_fd; dri2_surf->out_fence_fd = -1; ANativeWindow_queueBuffer(dri2_surf->window, dri2_surf->buffer, fence_fd); dri2_surf->buffer = NULL; dri2_surf->back = NULL; mtx_lock(&disp->Mutex); if (dri2_surf->dri_image_back) { dri2_dpy->image->destroyImage(dri2_surf->dri_image_back); dri2_surf->dri_image_back = NULL; } return EGL_TRUE; } static void droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf) { int ret; int fence_fd = dri2_surf->out_fence_fd; dri2_surf->out_fence_fd = -1; ret = ANativeWindow_cancelBuffer(dri2_surf->window, dri2_surf->buffer, fence_fd); dri2_surf->buffer = NULL; if (ret < 0) { _eglLog(_EGL_WARNING, "ANativeWindow_cancelBuffer failed"); dri2_surf->base.Lost = EGL_TRUE; } } static bool droid_set_shared_buffer_mode(_EGLDisplay *disp, _EGLSurface *surf, bool mode) { #if ANDROID_API_LEVEL >= 24 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); struct ANativeWindow *window = dri2_surf->window; assert(surf->Type == EGL_WINDOW_BIT); assert(_eglSurfaceHasMutableRenderBuffer(&dri2_surf->base)); _eglLog(_EGL_DEBUG, "%s: mode=%d", __func__, mode); if (ANativeWindow_setSharedBufferMode(window, mode)) { _eglLog(_EGL_WARNING, "failed ANativeWindow_setSharedBufferMode" "(window=%p, mode=%d)", window, mode); return false; } if (mode) dri2_surf->gralloc_usage |= dri2_dpy->front_rendering_usage; else dri2_surf->gralloc_usage &= ~dri2_dpy->front_rendering_usage; if (ANativeWindow_setUsage(window, dri2_surf->gralloc_usage)) { _eglLog(_EGL_WARNING, "failed ANativeWindow_setUsage(window=%p, usage=%u)", window, dri2_surf->gralloc_usage); return false; } return true; #else _eglLog(_EGL_FATAL, "%s:%d: internal error: unreachable", __FILE__, __LINE__); return false; #endif } static _EGLSurface * droid_create_surface(_EGLDisplay *disp, EGLint type, _EGLConfig *conf, void *native_window, const EGLint *attrib_list) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_config *dri2_conf = dri2_egl_config(conf); struct dri2_egl_surface *dri2_surf; struct ANativeWindow *window = native_window; const __DRIconfig *config; dri2_surf = calloc(1, sizeof *dri2_surf); if (!dri2_surf) { _eglError(EGL_BAD_ALLOC, "droid_create_surface"); return NULL; } if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list, true, native_window)) goto cleanup_surface; if (type == EGL_WINDOW_BIT) { int format; int buffer_count; int min_undequeued_buffers; format = ANativeWindow_getFormat(window); if (format < 0) { _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface"); goto cleanup_surface; } /* Query ANativeWindow for MIN_UNDEQUEUED_BUFFER, minimum amount * of undequeued buffers. */ if (ANativeWindow_query(window, ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS, &min_undequeued_buffers)) { _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface"); goto cleanup_surface; } /* Required buffer caching slots. */ buffer_count = min_undequeued_buffers + 2; dri2_surf->color_buffers = calloc(buffer_count, sizeof(*dri2_surf->color_buffers)); if (!dri2_surf->color_buffers) { _eglError(EGL_BAD_ALLOC, "droid_create_surface"); goto cleanup_surface; } dri2_surf->color_buffers_count = buffer_count; if (format != dri2_conf->base.NativeVisualID) { _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x", format, dri2_conf->base.NativeVisualID); } ANativeWindow_query(window, ANATIVEWINDOW_QUERY_DEFAULT_WIDTH, &dri2_surf->base.Width); ANativeWindow_query(window, ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT, &dri2_surf->base.Height); dri2_surf->gralloc_usage = strcmp(dri2_dpy->driver_name, "kms_swrast") == 0 ? GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN : GRALLOC_USAGE_HW_RENDER; if (dri2_surf->base.ActiveRenderBuffer == EGL_SINGLE_BUFFER) dri2_surf->gralloc_usage |= dri2_dpy->front_rendering_usage; if (ANativeWindow_setUsage(window, dri2_surf->gralloc_usage)) { _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface"); goto cleanup_surface; } } config = dri2_get_dri_config(dri2_conf, type, dri2_surf->base.GLColorspace); if (!config) { _eglError(EGL_BAD_MATCH, "Unsupported surfacetype/colorspace configuration"); goto cleanup_surface; } if (!dri2_create_drawable(dri2_dpy, config, dri2_surf, dri2_surf)) goto cleanup_surface; if (window) { ANativeWindow_acquire(window); dri2_surf->window = window; } return &dri2_surf->base; cleanup_surface: if (dri2_surf->color_buffers_count) free(dri2_surf->color_buffers); free(dri2_surf); return NULL; } static _EGLSurface * droid_create_window_surface(_EGLDisplay *disp, _EGLConfig *conf, void *native_window, const EGLint *attrib_list) { return droid_create_surface(disp, EGL_WINDOW_BIT, conf, native_window, attrib_list); } static _EGLSurface * droid_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf, const EGLint *attrib_list) { return droid_create_surface(disp, EGL_PBUFFER_BIT, conf, NULL, attrib_list); } static EGLBoolean droid_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); dri2_egl_surface_free_local_buffers(dri2_surf); if (dri2_surf->base.Type == EGL_WINDOW_BIT) { if (dri2_surf->buffer) droid_window_cancel_buffer(dri2_surf); ANativeWindow_release(dri2_surf->window); } if (dri2_surf->dri_image_back) { _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__); dri2_dpy->image->destroyImage(dri2_surf->dri_image_back); dri2_surf->dri_image_back = NULL; } if (dri2_surf->dri_image_front) { _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__); dri2_dpy->image->destroyImage(dri2_surf->dri_image_front); dri2_surf->dri_image_front = NULL; } dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable); dri2_fini_surface(surf); free(dri2_surf->color_buffers); free(dri2_surf); return EGL_TRUE; } static EGLBoolean droid_swap_interval(_EGLDisplay *disp, _EGLSurface *surf, EGLint interval) { struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); struct ANativeWindow *window = dri2_surf->window; if (ANativeWindow_setSwapInterval(window, interval)) return EGL_FALSE; surf->SwapInterval = interval; return EGL_TRUE; } static int update_buffers(struct dri2_egl_surface *dri2_surf) { if (dri2_surf->base.Lost) return -1; if (dri2_surf->base.Type != EGL_WINDOW_BIT) return 0; /* try to dequeue the next back buffer */ if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) { _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window"); dri2_surf->base.Lost = EGL_TRUE; return -1; } /* free outdated buffers and update the surface size */ if (dri2_surf->base.Width != dri2_surf->buffer->width || dri2_surf->base.Height != dri2_surf->buffer->height) { dri2_egl_surface_free_local_buffers(dri2_surf); dri2_surf->base.Width = dri2_surf->buffer->width; dri2_surf->base.Height = dri2_surf->buffer->height; } return 0; } static int get_front_bo(struct dri2_egl_surface *dri2_surf, unsigned int format) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); if (dri2_surf->dri_image_front) return 0; if (dri2_surf->base.Type == EGL_WINDOW_BIT) { /* According current EGL spec, front buffer rendering * for window surface is not supported now. * and mesa doesn't have the implementation of this case. * Add warning message, but not treat it as error. */ _eglLog(_EGL_DEBUG, "DRI driver requested unsupported front buffer for window surface"); } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) { dri2_surf->dri_image_front = dri2_dpy->image->createImage(dri2_dpy->dri_screen, dri2_surf->base.Width, dri2_surf->base.Height, format, 0, NULL); if (!dri2_surf->dri_image_front) { _eglLog(_EGL_WARNING, "dri2_image_front allocation failed"); return -1; } } return 0; } static int get_back_bo(struct dri2_egl_surface *dri2_surf) { _EGLDisplay *disp = dri2_surf->base.Resource.Display; if (dri2_surf->dri_image_back) return 0; if (dri2_surf->base.Type == EGL_WINDOW_BIT) { if (!dri2_surf->buffer) { _eglLog(_EGL_WARNING, "Could not get native buffer"); return -1; } dri2_surf->dri_image_back = droid_create_image_from_native_buffer(disp, dri2_surf->buffer, NULL); if (!dri2_surf->dri_image_back) { _eglLog(_EGL_WARNING, "failed to create DRI image from FD"); return -1; } } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) { /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically, * the spec states that they have a back buffer but no front buffer, in * contrast to pixmaps, which have a front buffer but no back buffer. * * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate * from the spec, following the precedent of Mesa's EGL X11 platform. The * X11 platform correctly assigns pbuffers to single-buffered configs, but * assigns the pbuffer a front buffer instead of a back buffer. * * Pbuffers in the X11 platform mostly work today, so let's just copy its * behavior instead of trying to fix (and hence potentially breaking) the * world. */ _eglLog(_EGL_DEBUG, "DRI driver requested unsupported back buffer for pbuffer surface"); } return 0; } /* Some drivers will pass multiple bits in buffer_mask. * For such case, will go through all the bits, and * will not return error when unsupported buffer is requested, only * return error when the allocation for supported buffer failed. */ static int droid_image_get_buffers(__DRIdrawable *driDrawable, unsigned int format, uint32_t *stamp, void *loaderPrivate, uint32_t buffer_mask, struct __DRIimageList *images) { struct dri2_egl_surface *dri2_surf = loaderPrivate; images->image_mask = 0; images->front = NULL; images->back = NULL; if (update_buffers(dri2_surf) < 0) return 0; if (_eglSurfaceInSharedBufferMode(&dri2_surf->base)) { if (get_back_bo(dri2_surf) < 0) return 0; /* We have dri_image_back because this is a window surface and * get_back_bo() succeeded. */ assert(dri2_surf->dri_image_back); images->back = dri2_surf->dri_image_back; images->image_mask |= __DRI_IMAGE_BUFFER_SHARED; /* There exists no accompanying back nor front buffer. */ return 1; } if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) { if (get_front_bo(dri2_surf, format) < 0) return 0; if (dri2_surf->dri_image_front) { images->front = dri2_surf->dri_image_front; images->image_mask |= __DRI_IMAGE_BUFFER_FRONT; } } if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) { if (get_back_bo(dri2_surf) < 0) return 0; if (dri2_surf->dri_image_back) { images->back = dri2_surf->dri_image_back; images->image_mask |= __DRI_IMAGE_BUFFER_BACK; } } return 1; } static EGLint droid_query_buffer_age(_EGLDisplay *disp, _EGLSurface *surface) { struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface); if (update_buffers(dri2_surf) < 0) { _eglError(EGL_BAD_ALLOC, "droid_query_buffer_age"); return -1; } return dri2_surf->back ? dri2_surf->back->age : 0; } static EGLBoolean droid_swap_buffers(_EGLDisplay *disp, _EGLSurface *draw) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw); const bool has_mutable_rb = _eglSurfaceHasMutableRenderBuffer(draw); /* From the EGL_KHR_mutable_render_buffer spec (v12): * * If surface is a single-buffered window, pixmap, or pbuffer surface * for which there is no pending change to the EGL_RENDER_BUFFER * attribute, eglSwapBuffers has no effect. */ if (has_mutable_rb && draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER && draw->ActiveRenderBuffer == EGL_SINGLE_BUFFER) { _eglLog(_EGL_DEBUG, "%s: remain in shared buffer mode", __func__); return EGL_TRUE; } for (int i = 0; i < dri2_surf->color_buffers_count; i++) { if (dri2_surf->color_buffers[i].age > 0) dri2_surf->color_buffers[i].age++; } /* "XXX: we don't use get_back_bo() since it causes regressions in * several dEQP tests. */ if (dri2_surf->back) dri2_surf->back->age = 1; dri2_flush_drawable_for_swapbuffers(disp, draw); /* dri2_surf->buffer can be null even when no error has occured. For * example, if the user has called no GL rendering commands since the * previous eglSwapBuffers, then the driver may have not triggered * a callback to ANativeWindow_dequeueBuffer, in which case * dri2_surf->buffer remains null. */ if (dri2_surf->buffer) droid_window_enqueue_buffer(disp, dri2_surf); dri2_dpy->flush->invalidate(dri2_surf->dri_drawable); /* Update the shared buffer mode */ if (has_mutable_rb && draw->ActiveRenderBuffer != draw->RequestedRenderBuffer) { bool mode = (draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER); _eglLog(_EGL_DEBUG, "%s: change to shared buffer mode %d", __func__, mode); if (!droid_set_shared_buffer_mode(disp, draw, mode)) return EGL_FALSE; draw->ActiveRenderBuffer = draw->RequestedRenderBuffer; } return EGL_TRUE; } #ifdef HAVE_DRM_GRALLOC static int get_format(int format) { switch (format) { case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888; case HAL_PIXEL_FORMAT_RGB_565: return __DRI_IMAGE_FORMAT_RGB565; case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888; case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: /* * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack. * TODO: Revert this once https://issuetracker.google.com/32077885 is fixed. */ case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888; case HAL_PIXEL_FORMAT_RGBA_FP16: return __DRI_IMAGE_FORMAT_ABGR16161616F; case HAL_PIXEL_FORMAT_RGBA_1010102: return __DRI_IMAGE_FORMAT_ABGR2101010; default: _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format); } return -1; } static __DRIimage * droid_create_image_from_name(_EGLDisplay *disp, struct ANativeWindowBuffer *buf, void *priv) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); int name; int format; name = get_native_buffer_name(buf); if (!name) { _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR"); return NULL; } format = get_format(buf->format); if (format == -1) return NULL; return dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen, buf->width, buf->height, format, name, buf->stride, priv); } #endif /* HAVE_DRM_GRALLOC */ static EGLBoolean droid_query_surface(_EGLDisplay *disp, _EGLSurface *surf, EGLint attribute, EGLint *value) { struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf); switch (attribute) { case EGL_WIDTH: if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) { ANativeWindow_query(dri2_surf->window, ANATIVEWINDOW_QUERY_DEFAULT_WIDTH, value); return EGL_TRUE; } break; case EGL_HEIGHT: if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) { ANativeWindow_query(dri2_surf->window, ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT, value); return EGL_TRUE; } break; default: break; } return _eglQuerySurface(disp, surf, attribute, value); } static _EGLImage * dri2_create_image_android_native_buffer(_EGLDisplay *disp, _EGLContext *ctx, struct ANativeWindowBuffer *buf) { if (ctx != NULL) { /* From the EGL_ANDROID_image_native_buffer spec: * * * If is EGL_NATIVE_BUFFER_ANDROID and is not * EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated. */ _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for " "EGL_NATIVE_BUFFER_ANDROID, the context must be " "EGL_NO_CONTEXT"); return NULL; } if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC || buf->common.version != sizeof(*buf)) { _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR"); return NULL; } __DRIimage *dri_image = droid_create_image_from_native_buffer(disp, buf, buf); #ifdef HAVE_DRM_GRALLOC if (dri_image == NULL) dri_image = droid_create_image_from_name(disp, buf, buf); #endif if (dri_image) { #if ANDROID_API_LEVEL >= 26 AHardwareBuffer_acquire(ANativeWindowBuffer_getHardwareBuffer(buf)); #endif return dri2_create_image_from_dri(disp, dri_image); } return NULL; } static _EGLImage * droid_create_image_khr(_EGLDisplay *disp, _EGLContext *ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attr_list) { switch (target) { case EGL_NATIVE_BUFFER_ANDROID: return dri2_create_image_android_native_buffer(disp, ctx, (struct ANativeWindowBuffer *) buffer); default: return dri2_create_image_khr(disp, ctx, target, buffer, attr_list); } } static void droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate) { } #ifdef HAVE_DRM_GRALLOC static int droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf, unsigned int *attachments, int count) { int num_buffers = 0; /* fill dri2_surf->buffers */ for (int i = 0; i < count * 2; i += 2) { __DRIbuffer *buf, *local; assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers)); buf = &dri2_surf->buffers[num_buffers]; switch (attachments[i]) { case __DRI_BUFFER_BACK_LEFT: if (dri2_surf->base.Type == EGL_WINDOW_BIT) { buf->attachment = attachments[i]; buf->name = get_native_buffer_name(dri2_surf->buffer); buf->cpp = get_format_bpp(dri2_surf->buffer->format); buf->pitch = dri2_surf->buffer->stride * buf->cpp; buf->flags = 0; if (buf->name) num_buffers++; break; } FALLTHROUGH; /* for pbuffers */ case __DRI_BUFFER_DEPTH: case __DRI_BUFFER_STENCIL: case __DRI_BUFFER_ACCUM: case __DRI_BUFFER_DEPTH_STENCIL: case __DRI_BUFFER_HIZ: local = dri2_egl_surface_alloc_local_buffer(dri2_surf, attachments[i], attachments[i + 1]); if (local) { *buf = *local; num_buffers++; } break; case __DRI_BUFFER_FRONT_LEFT: case __DRI_BUFFER_FRONT_RIGHT: case __DRI_BUFFER_FAKE_FRONT_LEFT: case __DRI_BUFFER_FAKE_FRONT_RIGHT: case __DRI_BUFFER_BACK_RIGHT: default: /* no front or right buffers */ break; } } return num_buffers; } static __DRIbuffer * droid_get_buffers_with_format(__DRIdrawable * driDrawable, int *width, int *height, unsigned int *attachments, int count, int *out_count, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; if (update_buffers(dri2_surf) < 0) return NULL; *out_count = droid_get_buffers_parse_attachments(dri2_surf, attachments, count); if (width) *width = dri2_surf->base.Width; if (height) *height = dri2_surf->base.Height; return dri2_surf->buffers; } #endif /* HAVE_DRM_GRALLOC */ static unsigned droid_get_capability(void *loaderPrivate, enum dri_loader_cap cap) { /* Note: loaderPrivate is _EGLDisplay* */ switch (cap) { case DRI_LOADER_CAP_RGBA_ORDERING: return 1; default: return 0; } } static void droid_destroy_loader_image_state(void *loaderPrivate) { #if ANDROID_API_LEVEL >= 26 if (loaderPrivate) { AHardwareBuffer_release( ANativeWindowBuffer_getHardwareBuffer(loaderPrivate)); } #endif } static EGLBoolean droid_add_configs_for_visuals(_EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); static const struct { int format; int rgba_shifts[4]; unsigned int rgba_sizes[4]; } visuals[] = { { HAL_PIXEL_FORMAT_RGBA_8888, { 0, 8, 16, 24 }, { 8, 8, 8, 8 } }, { HAL_PIXEL_FORMAT_RGBX_8888, { 0, 8, 16, -1 }, { 8, 8, 8, 0 } }, { HAL_PIXEL_FORMAT_RGB_565, { 11, 5, 0, -1 }, { 5, 6, 5, 0 } }, /* This must be after HAL_PIXEL_FORMAT_RGBA_8888, we only keep BGRA * visual if it turns out RGBA visual is not available. */ { HAL_PIXEL_FORMAT_BGRA_8888, { 16, 8, 0, 24 }, { 8, 8, 8, 8 } }, }; unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 }; int config_count = 0; /* The nesting of loops is significant here. Also significant is the order * of the HAL pixel formats. Many Android apps (such as Google's official * NDK GLES2 example app), and even portions the core framework code (such * as SystemServiceManager in Nougat), incorrectly choose their EGLConfig. * They neglect to match the EGLConfig's EGL_NATIVE_VISUAL_ID against the * window's native format, and instead choose the first EGLConfig whose * channel sizes match those of the native window format while ignoring the * channel *ordering*. * * We can detect such buggy clients in logcat when they call * eglCreateSurface, by detecting the mismatch between the EGLConfig's * format and the window's format. * * As a workaround, we generate EGLConfigs such that all EGLConfigs for HAL * pixel format i precede those for HAL pixel format i+1. In my * (chadversary) testing on Android Nougat, this was good enough to pacify * the buggy clients. */ bool has_rgba = false; for (int i = 0; i < ARRAY_SIZE(visuals); i++) { /* Only enable BGRA configs when RGBA is not available. BGRA configs are * buggy on stock Android. */ if (visuals[i].format == HAL_PIXEL_FORMAT_BGRA_8888 && has_rgba) continue; for (int j = 0; dri2_dpy->driver_configs[j]; j++) { const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT; const EGLint config_attrs[] = { EGL_NATIVE_VISUAL_ID, visuals[i].format, EGL_NATIVE_VISUAL_TYPE, visuals[i].format, EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE, EGL_RECORDABLE_ANDROID, EGL_TRUE, EGL_NONE }; struct dri2_egl_config *dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[j], config_count + 1, surface_type, config_attrs, visuals[i].rgba_shifts, visuals[i].rgba_sizes); if (dri2_conf) { if (dri2_conf->base.ConfigID == config_count + 1) config_count++; format_count[i]++; } } if (visuals[i].format == HAL_PIXEL_FORMAT_RGBA_8888 && format_count[i]) has_rgba = true; } for (int i = 0; i < ARRAY_SIZE(format_count); i++) { if (!format_count[i]) { _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x", visuals[i].format); } } return (config_count != 0); } static const struct dri2_egl_display_vtbl droid_display_vtbl = { .authenticate = NULL, .create_window_surface = droid_create_window_surface, .create_pbuffer_surface = droid_create_pbuffer_surface, .destroy_surface = droid_destroy_surface, .create_image = droid_create_image_khr, .swap_buffers = droid_swap_buffers, .swap_interval = droid_swap_interval, .query_buffer_age = droid_query_buffer_age, .query_surface = droid_query_surface, .get_dri_drawable = dri2_surface_get_dri_drawable, .set_shared_buffer_mode = droid_set_shared_buffer_mode, }; #ifdef HAVE_DRM_GRALLOC static const __DRIdri2LoaderExtension droid_dri2_loader_extension = { .base = { __DRI_DRI2_LOADER, 5 }, .getBuffers = NULL, .flushFrontBuffer = droid_flush_front_buffer, .getBuffersWithFormat = droid_get_buffers_with_format, .getCapability = droid_get_capability, .destroyLoaderImageState = droid_destroy_loader_image_state, }; static const __DRIextension *droid_dri2_loader_extensions[] = { &droid_dri2_loader_extension.base, &image_lookup_extension.base, &use_invalidate.base, /* No __DRI_MUTABLE_RENDER_BUFFER_LOADER because it requires * __DRI_IMAGE_LOADER. */ NULL, }; #endif /* HAVE_DRM_GRALLOC */ static const __DRIimageLoaderExtension droid_image_loader_extension = { .base = { __DRI_IMAGE_LOADER, 4 }, .getBuffers = droid_image_get_buffers, .flushFrontBuffer = droid_flush_front_buffer, .getCapability = droid_get_capability, .flushSwapBuffers = NULL, .destroyLoaderImageState = droid_destroy_loader_image_state, }; static void droid_display_shared_buffer(__DRIdrawable *driDrawable, int fence_fd, void *loaderPrivate) { struct dri2_egl_surface *dri2_surf = loaderPrivate; struct ANativeWindowBuffer *old_buffer UNUSED = dri2_surf->buffer; if (!_eglSurfaceInSharedBufferMode(&dri2_surf->base)) { _eglLog(_EGL_WARNING, "%s: internal error: buffer is not shared", __func__); return; } if (fence_fd >= 0) { /* The driver's fence is more recent than the surface's out fence, if it * exists at all. So use the driver's fence. */ if (dri2_surf->out_fence_fd >= 0) { close(dri2_surf->out_fence_fd); dri2_surf->out_fence_fd = -1; } } else if (dri2_surf->out_fence_fd >= 0) { fence_fd = dri2_surf->out_fence_fd; dri2_surf->out_fence_fd = -1; } if (ANativeWindow_queueBuffer(dri2_surf->window, dri2_surf->buffer, fence_fd)) { _eglLog(_EGL_WARNING, "%s: ANativeWindow_queueBuffer failed", __func__); close(fence_fd); return; } fence_fd = -1; if (ANativeWindow_dequeueBuffer(dri2_surf->window, &dri2_surf->buffer, &fence_fd)) { /* Tear down the surface because it no longer has a back buffer. */ struct dri2_egl_display *dri2_dpy = dri2_egl_display(dri2_surf->base.Resource.Display); _eglLog(_EGL_WARNING, "%s: ANativeWindow_dequeueBuffer failed", __func__); dri2_surf->base.Lost = true; dri2_surf->buffer = NULL; dri2_surf->back = NULL; if (dri2_surf->dri_image_back) { dri2_dpy->image->destroyImage(dri2_surf->dri_image_back); dri2_surf->dri_image_back = NULL; } dri2_dpy->flush->invalidate(dri2_surf->dri_drawable); return; } if (fence_fd < 0) return; /* Access to the buffer is controlled by a sync fence. Block on it. * * Ideally, we would submit the fence to the driver, and the driver would * postpone command execution until it signalled. But DRI lacks API for * that (as of 2018-04-11). * * SYNC_IOC_WAIT waits forever if timeout < 0 */ sync_wait(fence_fd, -1); close(fence_fd); } static const __DRImutableRenderBufferLoaderExtension droid_mutable_render_buffer_extension = { .base = { __DRI_MUTABLE_RENDER_BUFFER_LOADER, 1 }, .displaySharedBuffer = droid_display_shared_buffer, }; static const __DRIextension *droid_image_loader_extensions[] = { &droid_image_loader_extension.base, &image_lookup_extension.base, &use_invalidate.base, &droid_mutable_render_buffer_extension.base, NULL, }; static EGLBoolean droid_load_driver(_EGLDisplay *disp, bool swrast) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd); if (dri2_dpy->driver_name == NULL) return false; #ifdef HAVE_DRM_GRALLOC /* Handle control nodes using __DRI_DRI2_LOADER extension and GEM names * for backwards compatibility with drm_gralloc. (Do not use on new * systems.) */ dri2_dpy->loader_extensions = droid_dri2_loader_extensions; if (!dri2_load_driver(disp)) { goto error; } #else if (swrast) { /* Use kms swrast only with vgem / virtio_gpu. * virtio-gpu fallbacks to software rendering when 3D features * are unavailable since 6c5ab. */ if (strcmp(dri2_dpy->driver_name, "vgem") == 0 || strcmp(dri2_dpy->driver_name, "virtio_gpu") == 0) { free(dri2_dpy->driver_name); dri2_dpy->driver_name = strdup("kms_swrast"); } else { goto error; } } dri2_dpy->loader_extensions = droid_image_loader_extensions; if (!dri2_load_driver_dri3(disp)) { goto error; } #endif return true; error: free(dri2_dpy->driver_name); dri2_dpy->driver_name = NULL; return false; } static void droid_unload_driver(_EGLDisplay *disp) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); dlclose(dri2_dpy->driver); dri2_dpy->driver = NULL; free(dri2_dpy->driver_name); dri2_dpy->driver_name = NULL; } static int droid_filter_device(_EGLDisplay *disp, int fd, const char *vendor) { drmVersionPtr ver = drmGetVersion(fd); if (!ver) return -1; if (strcmp(vendor, ver->name) != 0) { drmFreeVersion(ver); return -1; } drmFreeVersion(ver); return 0; } static EGLBoolean droid_probe_device(_EGLDisplay *disp, bool swrast) { /* Check that the device is supported, by attempting to: * - load the dri module * - and, create a screen */ if (!droid_load_driver(disp, swrast)) return EGL_FALSE; if (!dri2_create_screen(disp)) { _eglLog(_EGL_WARNING, "DRI2: failed to create screen"); droid_unload_driver(disp); return EGL_FALSE; } return EGL_TRUE; } #ifdef HAVE_DRM_GRALLOC static EGLBoolean droid_open_device(_EGLDisplay *disp, bool swrast) { struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); int fd = -1, err = -EINVAL; if (swrast) return EGL_FALSE; if (dri2_dpy->gralloc->perform) err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd); if (err || fd < 0) { _eglLog(_EGL_WARNING, "fail to get drm fd"); return EGL_FALSE; } dri2_dpy->fd = os_dupfd_cloexec(fd); if (dri2_dpy->fd < 0) return EGL_FALSE; if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER) return EGL_FALSE; return droid_probe_device(disp, swrast); } #else static EGLBoolean droid_open_device(_EGLDisplay *disp, bool swrast) { #define MAX_DRM_DEVICES 64 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp); drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL }; int num_devices; char *vendor_name = NULL; char vendor_buf[PROPERTY_VALUE_MAX]; #ifdef EGL_FORCE_RENDERNODE const unsigned node_type = DRM_NODE_RENDER; #else const unsigned node_type = swrast ? DRM_NODE_PRIMARY : DRM_NODE_RENDER; #endif if (property_get("drm.gpu.vendor_name", vendor_buf, NULL) > 0) vendor_name = vendor_buf; num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices)); if (num_devices < 0) return EGL_FALSE; for (int i = 0; i < num_devices; i++) { device = devices[i]; if (!(device->available_nodes & (1 << node_type))) continue; dri2_dpy->fd = loader_open_device(device->nodes[node_type]); if (dri2_dpy->fd < 0) { _eglLog(_EGL_WARNING, "%s() Failed to open DRM device %s", __func__, device->nodes[node_type]); continue; } /* If a vendor is explicitly provided, we use only that. * Otherwise we fall-back the first device that is supported. */ if (vendor_name) { if (droid_filter_device(disp, dri2_dpy->fd, vendor_name)) { /* Device does not match - try next device */ close(dri2_dpy->fd); dri2_dpy->fd = -1; continue; } /* If the requested device matches - use it. Regardless if * init fails, do not fall-back to any other device. */ if (!droid_probe_device(disp, false)) { close(dri2_dpy->fd); dri2_dpy->fd = -1; } break; } if (droid_probe_device(disp, swrast)) break; /* No explicit request - attempt the next device */ close(dri2_dpy->fd); dri2_dpy->fd = -1; } drmFreeDevices(devices, num_devices); if (dri2_dpy->fd < 0) { _eglLog(_EGL_WARNING, "Failed to open %s DRM device", vendor_name ? "desired": "any"); return EGL_FALSE; } return EGL_TRUE; #undef MAX_DRM_DEVICES } #endif EGLBoolean dri2_initialize_android(_EGLDisplay *disp) { _EGLDevice *dev; bool device_opened = false; struct dri2_egl_display *dri2_dpy; const char *err; int ret; dri2_dpy = calloc(1, sizeof(*dri2_dpy)); if (!dri2_dpy) return _eglError(EGL_BAD_ALLOC, "eglInitialize"); dri2_dpy->fd = -1; ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, (const hw_module_t **)&dri2_dpy->gralloc); if (ret) { err = "DRI2: failed to get gralloc module"; goto cleanup; } disp->DriverData = (void *) dri2_dpy; device_opened = droid_open_device(disp, disp->Options.ForceSoftware); if (!device_opened) { err = "DRI2: failed to open device"; goto cleanup; } dev = _eglAddDevice(dri2_dpy->fd, false); if (!dev) { err = "DRI2: failed to find EGLDevice"; goto cleanup; } disp->Device = dev; if (!dri2_setup_extensions(disp)) { err = "DRI2: failed to setup extensions"; goto cleanup; } dri2_setup_screen(disp); /* We set the maximum swap interval as 1 for Android platform, since it is * the maximum value supported by Android according to the value of * ANativeWindow::maxSwapInterval. */ dri2_setup_swap_interval(disp, 1); disp->Extensions.ANDROID_framebuffer_target = EGL_TRUE; disp->Extensions.ANDROID_image_native_buffer = EGL_TRUE; disp->Extensions.ANDROID_recordable = EGL_TRUE; /* Querying buffer age requires a buffer to be dequeued. Without * EGL_ANDROID_native_fence_sync, dequeue might call eglClientWaitSync and * result in a deadlock (the lock is already held by eglQuerySurface). */ if (disp->Extensions.ANDROID_native_fence_sync) { disp->Extensions.EXT_buffer_age = EGL_TRUE; } else { /* disable KHR_partial_update that might have been enabled in * dri2_setup_screen */ disp->Extensions.KHR_partial_update = EGL_FALSE; } disp->Extensions.KHR_image = EGL_TRUE; dri2_dpy->front_rendering_usage = 0; #if ANDROID_API_LEVEL >= 24 if (dri2_dpy->mutable_render_buffer && dri2_dpy->loader_extensions == droid_image_loader_extensions && /* In big GL, front rendering is done at the core API level by directly * rendering on the front buffer. However, in ES, the front buffer is * completely inaccessible through the core ES API. * * EGL_KHR_mutable_render_buffer is Android's attempt to re-introduce * front rendering into ES by squeezing into EGL. Unlike big GL, this * extension redirects GL_BACK used by ES for front rendering. Thus we * restrict the enabling of this extension to ES only. */ (disp->ClientAPIs & ~(EGL_OPENGL_ES_BIT | EGL_OPENGL_ES2_BIT | EGL_OPENGL_ES3_BIT_KHR)) == 0) { /* For cros gralloc, if the front rendering query is supported, then all * available window surface configs support front rendering because: * * 1) EGL queries cros gralloc for the front rendering usage bit here * 2) EGL combines the front rendering usage bit with the existing usage * if the window surface requests mutable render buffer * 3) EGL sets the combined usage onto the ANativeWindow and the next * dequeueBuffer will ask gralloc for an allocation/re-allocation with * the new combined usage * 4) cros gralloc(on top of minigbm) resolves the front rendering usage * bit into either BO_USE_FRONT_RENDERING or BO_USE_LINEAR based on * the format support checking. * * So at least we can force BO_USE_LINEAR as the fallback. */ uint32_t front_rendering_usage = 0; if (!strcmp(dri2_dpy->gralloc->common.name, cros_gralloc_module_name) && dri2_dpy->gralloc->perform && dri2_dpy->gralloc->perform( dri2_dpy->gralloc, CROS_GRALLOC_DRM_GET_USAGE, CROS_GRALLOC_DRM_GET_USAGE_FRONT_RENDERING_BIT, &front_rendering_usage) == 0) { dri2_dpy->front_rendering_usage = front_rendering_usage; disp->Extensions.KHR_mutable_render_buffer = EGL_TRUE; } } #endif /* Create configs *after* enabling extensions because presence of DRI * driver extensions can affect the capabilities of EGLConfigs. */ if (!droid_add_configs_for_visuals(disp)) { err = "DRI2: failed to add configs"; goto cleanup; } /* Fill vtbl last to prevent accidentally calling virtual function during * initialization. */ dri2_dpy->vtbl = &droid_display_vtbl; return EGL_TRUE; cleanup: dri2_display_destroy(disp); return _eglError(EGL_NOT_INITIALIZED, err); }