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mesa/src/egl/drivers/dri2/platform_android.c
Roman Stratiienko 41e664f825 egl: android: Remove legacy name-based shared buffers support 
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3415
Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16578>
2023-07-28 17:09:14 +00:00

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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
* 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 <dirent.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdio.h>
#include <xf86drm.h>
#include <cutils/properties.h>
#include <drm-uapi/drm_fourcc.h>
#include <sync/sync.h>
#include <sys/types.h>
#include "util/compiler.h"
#include "util/libsync.h"
#include "util/os_file.h"
#include "egl_dri2.h"
#include "eglglobals.h"
#include "loader.h"
#include "platform_android.h"
#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;
}
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_render_gpu, 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_render_gpu, 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 void
handle_in_fence_fd(struct dri2_egl_surface *dri2_surf, __DRIimage *img)
{
_EGLDisplay *disp = dri2_surf->base.Resource.Display;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (dri2_surf->in_fence_fd < 0)
return;
validate_fence_fd(dri2_surf->in_fence_fd);
if (dri2_dpy->image->base.version >= 21 &&
dri2_dpy->image->setInFenceFd != NULL) {
dri2_dpy->image->setInFenceFd(img, dri2_surf->in_fence_fd);
} else {
sync_wait(dri2_surf->in_fence_fd, -1);
}
}
static void
close_in_fence_fd(struct dri2_egl_surface *dri2_surf)
{
validate_fence_fd(dri2_surf->in_fence_fd);
if (dri2_surf->in_fence_fd >= 0)
close(dri2_surf->in_fence_fd);
dri2_surf->in_fence_fd = -1;
}
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;
close_in_fence_fd(dri2_surf);
validate_fence_fd(fence_fd);
dri2_surf->in_fence_fd = 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);
/* 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;
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;
}
close_in_fence_fd(dri2_surf);
}
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;
}
dri2_surf->in_fence_fd = -1;
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);
close_in_fence_fd(dri2_surf);
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_render_gpu, 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;
}
handle_in_fence_fd(dri2_surf, dri2_surf->dri_image_back);
} 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_flags(disp, draw,
__DRI2_NOTHROTTLE_SWAPBUFFER);
/* dri2_surf->buffer can be null even when no error has occurred. 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;
}
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 <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> 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);
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)
{
}
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,
};
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;
}
close_in_fence_fd(dri2_surf);
validate_fence_fd(fence_fd);
dri2_surf->in_fence_fd = fence_fd;
handle_in_fence_fd(dri2_surf, dri2_surf->dri_image_back);
}
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_render_gpu);
if (dri2_dpy->driver_name == NULL)
return false;
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;
}
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;
}
static EGLBoolean
droid_open_device(_EGLDisplay *disp, bool swrast)
{
#define MAX_DRM_DEVICES 64
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_EGLDevice *dev_list = _eglGlobal.DeviceList;
drmDevicePtr device;
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;
while (dev_list) {
if (!_eglDeviceSupports(dev_list, _EGL_DEVICE_DRM))
goto next;
device = _eglDeviceDrm(dev_list);
assert(device);
if (!(device->available_nodes & (1 << node_type)))
goto next;
dri2_dpy->fd_render_gpu = loader_open_device(device->nodes[node_type]);
if (dri2_dpy->fd_render_gpu < 0) {
_eglLog(_EGL_WARNING, "%s() Failed to open DRM device %s", __func__,
device->nodes[node_type]);
goto next;
}
/* 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_render_gpu, vendor_name)) {
/* Device does not match - try next device */
close(dri2_dpy->fd_render_gpu);
dri2_dpy->fd_render_gpu = -1;
goto next;
}
/* 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_render_gpu);
dri2_dpy->fd_render_gpu = -1;
}
break;
}
if (droid_probe_device(disp, swrast))
break;
/* No explicit request - attempt the next device */
close(dri2_dpy->fd_render_gpu);
dri2_dpy->fd_render_gpu = -1;
next:
dev_list = _eglDeviceNext(dev_list);
}
if (dri2_dpy->fd_render_gpu < 0) {
_eglLog(_EGL_WARNING, "Failed to open %s DRM device",
vendor_name ? "desired" : "any");
return EGL_FALSE;
}
return EGL_TRUE;
}
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_render_gpu = -1;
dri2_dpy->fd_display_gpu = -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;
}
dri2_dpy->fd_display_gpu = dri2_dpy->fd_render_gpu;
dev = _eglFindDevice(dri2_dpy->fd_render_gpu, 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);
}
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