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chromium / chromiumos / third_party / mesa / d3e8bdd7b2ee26393812602e81c2e2195f272a2f / . / src / egl / drivers / dri2 / egl_dri2.c
blob: a99c3a0fe45f32d8ecc6e6f9cd91b77435c01169 [file] [log] [blame]
/*
* Copyright © 2010 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 (including the next
* paragraph) 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.
*
* Authors:
* Kristian Høgsberg <krh@bitplanet.net>
*/
#define WL_HIDE_DEPRECATED
#include <stdbool.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
#include <dlfcn.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <c11/threads.h>
#include <time.h>
#ifdef HAVE_LIBDRM
#include <xf86drm.h>
#include <drm_fourcc.h>
#endif
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include "GL/mesa_glinterop.h"
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_WAYLAND_PLATFORM
#include "wayland-drm.h"
#include "wayland-drm-client-protocol.h"
#include "linux-dmabuf-unstable-v1-client-protocol.h"
#endif
#ifdef HAVE_X11_PLATFORM
#include "X11/Xlibint.h"
#endif
#include "egl_dri2.h"
#include "loader/loader.h"
#include "util/u_atomic.h"
#include "util/u_vector.h"
/* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
* some of the definitions here so that building Mesa won't bleeding-edge
* kernel headers.
*/
#ifndef DRM_FORMAT_R8
#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
#endif
#ifndef DRM_FORMAT_RG88
#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
#endif
#ifndef DRM_FORMAT_GR88
#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
#endif
#ifndef DRM_FORMAT_R16
#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
#endif
#ifndef DRM_FORMAT_GR1616
#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
#endif
#ifndef DRM_FORMAT_MOD_INVALID
#define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
#endif
static void
dri_set_background_context(void *loaderPrivate)
{
_EGLContext *ctx = _eglGetCurrentContext();
_EGLThreadInfo *t = _eglGetCurrentThread();
_eglBindContextToThread(ctx, t);
}
static GLboolean
dri_is_thread_safe(void *loaderPrivate)
{
struct dri2_egl_surface *dri2_surf = loaderPrivate;
_EGLDisplay *display = dri2_surf->base.Resource.Display;
#ifdef HAVE_X11_PLATFORM
Display *xdpy = (Display*)display->PlatformDisplay;
/* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
* platform
*
* 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
* It wll be NULL if XInitThreads wasn't called.
*/
if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
return false;
#endif
#ifdef HAVE_WAYLAND_PLATFORM
if (display->Platform == _EGL_PLATFORM_WAYLAND)
return true;
#endif
return true;
}
const __DRIbackgroundCallableExtension background_callable_extension = {
.base = { __DRI_BACKGROUND_CALLABLE, 2 },
.setBackgroundContext = dri_set_background_context,
.isThreadSafe = dri_is_thread_safe,
};
const __DRIuseInvalidateExtension use_invalidate = {
.base = { __DRI_USE_INVALIDATE, 1 }
};
static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
[__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
[__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
[__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
[__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
[__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
[__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
[__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
[__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
[__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
[__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
[__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
[__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
[__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
[__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
[__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
[__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
[__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
};
const __DRIconfig *
dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
EGLenum colorspace)
{
const bool double_buffer = surface_type == EGL_WINDOW_BIT;
const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
return conf->dri_config[double_buffer][srgb];
}
static EGLBoolean
dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
{
if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
return EGL_FALSE;
if (!_eglMatchConfig(conf, criteria))
return EGL_FALSE;
return EGL_TRUE;
}
struct dri2_egl_config *
dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
EGLint surface_type, const EGLint *attr_list,
const unsigned int *rgba_masks)
{
struct dri2_egl_config *conf;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_EGLConfig base;
unsigned int attrib, value, double_buffer;
bool srgb = false;
EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
unsigned int dri_masks[4] = { 0, 0, 0, 0 };
_EGLConfig *matching_config;
EGLint num_configs = 0;
EGLint config_id;
_eglInitConfig(&base, disp, id);
double_buffer = 0;
bind_to_texture_rgb = 0;
bind_to_texture_rgba = 0;
for (int i = 0; dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib,
&value); ++i) {
switch (attrib) {
case __DRI_ATTRIB_RENDER_TYPE:
if (value & __DRI_ATTRIB_RGBA_BIT)
value = EGL_RGB_BUFFER;
else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
value = EGL_LUMINANCE_BUFFER;
else
return NULL;
_eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
break;
case __DRI_ATTRIB_CONFIG_CAVEAT:
if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
value = EGL_NON_CONFORMANT_CONFIG;
else if (value & __DRI_ATTRIB_SLOW_BIT)
value = EGL_SLOW_CONFIG;
else
value = EGL_NONE;
_eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
bind_to_texture_rgb = value;
break;
case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
bind_to_texture_rgba = value;
break;
case __DRI_ATTRIB_DOUBLE_BUFFER:
double_buffer = value;
break;
case __DRI_ATTRIB_RED_MASK:
dri_masks[0] = value;
break;
case __DRI_ATTRIB_GREEN_MASK:
dri_masks[1] = value;
break;
case __DRI_ATTRIB_BLUE_MASK:
dri_masks[2] = value;
break;
case __DRI_ATTRIB_ALPHA_MASK:
dri_masks[3] = value;
break;
case __DRI_ATTRIB_ACCUM_RED_SIZE:
case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
/* Don't expose visuals with the accumulation buffer. */
if (value > 0)
return NULL;
break;
case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
srgb = value != 0;
if (!disp->Extensions.KHR_gl_colorspace && srgb)
return NULL;
break;
case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
_eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
_EGL_MAX_PBUFFER_WIDTH);
break;
case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
_eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
_EGL_MAX_PBUFFER_HEIGHT);
break;
default:
key = dri2_to_egl_attribute_map[attrib];
if (key != 0)
_eglSetConfigKey(&base, key, value);
break;
}
}
if (attr_list)
for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
_eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
return NULL;
base.NativeRenderable = EGL_TRUE;
base.SurfaceType = surface_type;
if (surface_type & (EGL_PBUFFER_BIT |
(disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
base.BindToTextureRGB = bind_to_texture_rgb;
if (base.AlphaSize > 0)
base.BindToTextureRGBA = bind_to_texture_rgba;
}
base.RenderableType = disp->ClientAPIs;
base.Conformant = disp->ClientAPIs;
base.MinSwapInterval = dri2_dpy->min_swap_interval;
base.MaxSwapInterval = dri2_dpy->max_swap_interval;
if (!_eglValidateConfig(&base, EGL_FALSE)) {
_eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
return NULL;
}
config_id = base.ConfigID;
base.ConfigID = EGL_DONT_CARE;
base.SurfaceType = EGL_DONT_CARE;
num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
(_EGLArrayForEach) dri2_match_config, &base);
if (num_configs == 1) {
conf = (struct dri2_egl_config *) matching_config;
if (!conf->dri_config[double_buffer][srgb])
conf->dri_config[double_buffer][srgb] = dri_config;
else
/* a similar config type is already added (unlikely) => discard */
return NULL;
}
else if (num_configs == 0) {
conf = calloc(1, sizeof *conf);
if (conf == NULL)
return NULL;
conf->dri_config[double_buffer][srgb] = dri_config;
memcpy(&conf->base, &base, sizeof base);
conf->base.SurfaceType = 0;
conf->base.ConfigID = config_id;
_eglLinkConfig(&conf->base);
}
else {
assert(0);
return NULL;
}
if (double_buffer) {
surface_type &= ~EGL_PIXMAP_BIT;
}
/* No support for pbuffer + MSAA for now.
*
* XXX TODO: pbuffer + MSAA does not work and causes crashes.
* See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
*/
if (base.Samples) {
surface_type &= ~EGL_PBUFFER_BIT;
}
conf->base.SurfaceType |= surface_type;
return conf;
}
__DRIimage *
dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
{
_EGLDisplay *disp = data;
struct dri2_egl_image *dri2_img;
_EGLImage *img;
(void) screen;
img = _eglLookupImage(image, disp);
if (img == NULL) {
_eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
return NULL;
}
dri2_img = dri2_egl_image(image);
return dri2_img->dri_image;
}
const __DRIimageLookupExtension image_lookup_extension = {
.base = { __DRI_IMAGE_LOOKUP, 1 },
.lookupEGLImage = dri2_lookup_egl_image
};
struct dri2_extension_match {
const char *name;
int version;
int offset;
};
static const struct dri2_extension_match dri3_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
{ NULL, 0, 0 }
};
static const struct dri2_extension_match dri2_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
{ NULL, 0, 0 }
};
static const struct dri2_extension_match dri2_core_extensions[] = {
{ __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
{ __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
{ __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
{ NULL, 0, 0 }
};
static const struct dri2_extension_match swrast_driver_extensions[] = {
{ __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
{ __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
{ NULL, 0, 0 }
};
static const struct dri2_extension_match swrast_core_extensions[] = {
{ __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
{ NULL, 0, 0 }
};
static const struct dri2_extension_match optional_core_extensions[] = {
{ __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
{ __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
{ __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
{ __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
{ __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
{ __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
{ NULL, 0, 0 }
};
static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
const struct dri2_extension_match *matches,
const __DRIextension **extensions,
bool optional)
{
int ret = EGL_TRUE;
void *field;
for (int i = 0; extensions[i]; i++) {
_eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
for (int j = 0; matches[j].name; j++) {
if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
extensions[i]->version >= matches[j].version) {
field = ((char *) dri2_dpy + matches[j].offset);
*(const __DRIextension **) field = extensions[i];
_eglLog(_EGL_INFO, "found extension %s version %d",
extensions[i]->name, extensions[i]->version);
break;
}
}
}
for (int j = 0; matches[j].name; j++) {
field = ((char *) dri2_dpy + matches[j].offset);
if (*(const __DRIextension **) field == NULL) {
if (optional) {
_eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
matches[j].name, matches[j].version);
} else {
_eglLog(_EGL_WARNING, "did not find extension %s version %d",
matches[j].name, matches[j].version);
ret = EGL_FALSE;
}
}
}
return ret;
}
static const __DRIextension **
dri2_open_driver(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const __DRIextension **extensions = NULL;
char path[PATH_MAX], *search_paths, *next, *end;
char *get_extensions_name;
const __DRIextension **(*get_extensions)(void);
search_paths = NULL;
if (geteuid() == getuid()) {
/* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
search_paths = getenv("LIBGL_DRIVERS_PATH");
}
if (search_paths == NULL)
search_paths = DEFAULT_DRIVER_DIR;
dri2_dpy->driver = NULL;
end = search_paths + strlen(search_paths);
for (char *p = search_paths; p < end; p = next + 1) {
int len;
next = strchr(p, ':');
if (next == NULL)
next = end;
len = next - p;
#if GLX_USE_TLS
snprintf(path, sizeof path,
"%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
#endif
if (dri2_dpy->driver == NULL) {
snprintf(path, sizeof path,
"%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
if (dri2_dpy->driver == NULL)
_eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
}
/* not need continue to loop all paths once the driver is found */
if (dri2_dpy->driver != NULL)
break;
}
if (dri2_dpy->driver == NULL) {
_eglLog(_EGL_WARNING,
"DRI2: failed to open %s (search paths %s)",
dri2_dpy->driver_name, search_paths);
return NULL;
}
_eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
if (get_extensions_name) {
get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
if (get_extensions) {
extensions = get_extensions();
} else {
_eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
get_extensions_name, dlerror());
}
free(get_extensions_name);
}
if (!extensions)
extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
if (extensions == NULL) {
_eglLog(_EGL_WARNING,
"DRI2: driver exports no extensions (%s)", dlerror());
dlclose(dri2_dpy->driver);
}
return extensions;
}
EGLBoolean
dri2_load_driver_dri3(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const __DRIextension **extensions;
extensions = dri2_open_driver(disp);
if (!extensions)
return EGL_FALSE;
if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
dlclose(dri2_dpy->driver);
return EGL_FALSE;
}
dri2_dpy->driver_extensions = extensions;
return EGL_TRUE;
}
EGLBoolean
dri2_load_driver(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const __DRIextension **extensions;
extensions = dri2_open_driver(disp);
if (!extensions)
return EGL_FALSE;
if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
dlclose(dri2_dpy->driver);
return EGL_FALSE;
}
dri2_dpy->driver_extensions = extensions;
return EGL_TRUE;
}
EGLBoolean
dri2_load_driver_swrast(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const __DRIextension **extensions;
extensions = dri2_open_driver(disp);
if (!extensions)
return EGL_FALSE;
if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
dlclose(dri2_dpy->driver);
return EGL_FALSE;
}
dri2_dpy->driver_extensions = extensions;
return EGL_TRUE;
}
static unsigned
dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
{
const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
unsigned int value = 0;
if (!rendererQuery ||
rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
return 0;
return value;
}
void
dri2_setup_screen(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
unsigned int api_mask;
/*
* EGL 1.5 specification defines the default value to 1. Moreover,
* eglSwapInterval() is required to clamp requested value to the supported
* range. Since the default value is implicitly assumed to be supported,
* use it as both minimum and maximum for the platforms that do not allow
* changing the interval. Platforms, which allow it (e.g. x11, wayland)
* override these values already.
*/
dri2_dpy->min_swap_interval = 1;
dri2_dpy->max_swap_interval = 1;
dri2_dpy->default_swap_interval = 1;
if (dri2_dpy->image_driver) {
api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
} else if (dri2_dpy->dri2) {
api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
} else {
assert(dri2_dpy->swrast);
api_mask = 1 << __DRI_API_OPENGL |
1 << __DRI_API_GLES |
1 << __DRI_API_GLES2 |
1 << __DRI_API_GLES3;
}
disp->ClientAPIs = 0;
if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
disp->ClientAPIs |= EGL_OPENGL_BIT;
if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
disp->Extensions.KHR_no_config_context = EGL_TRUE;
disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
if (dri2_renderer_query_integer(dri2_dpy,
__DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
if (dri2_dpy->image_driver ||
(dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
(dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
disp->Extensions.KHR_create_context = EGL_TRUE;
if (dri2_dpy->robustness)
disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
}
if (dri2_dpy->no_error)
disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
if (dri2_dpy->fence) {
disp->Extensions.KHR_fence_sync = EGL_TRUE;
disp->Extensions.KHR_wait_sync = EGL_TRUE;
if (dri2_dpy->fence->get_fence_from_cl_event)
disp->Extensions.KHR_cl_event2 = EGL_TRUE;
if (dri2_dpy->fence->base.version >= 2) {
unsigned capabilities =
dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
disp->Extensions.ANDROID_native_fence_sync =
(capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
}
}
disp->Extensions.KHR_reusable_sync = EGL_TRUE;
if (dri2_dpy->image) {
if (dri2_dpy->image->base.version >= 10 &&
dri2_dpy->image->getCapabilities != NULL) {
int capabilities;
capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
if (dri2_dpy->image->base.version >= 11)
disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
} else {
disp->Extensions.MESA_drm_image = EGL_TRUE;
if (dri2_dpy->image->base.version >= 11)
disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
}
disp->Extensions.KHR_image_base = EGL_TRUE;
disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
if (dri2_dpy->image->base.version >= 5 &&
dri2_dpy->image->createImageFromTexture) {
disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
if (dri2_renderer_query_integer(dri2_dpy,
__DRI2_RENDERER_HAS_TEXTURE_3D))
disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
}
#ifdef HAVE_LIBDRM
if (dri2_dpy->image->base.version >= 8 &&
dri2_dpy->image->createImageFromDmaBufs) {
disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
}
if (dri2_dpy->image->base.version >= 15 &&
dri2_dpy->image->createImageFromDmaBufs2 &&
dri2_dpy->image->queryDmaBufFormats &&
dri2_dpy->image->queryDmaBufModifiers) {
disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
}
#endif
}
}
/* All platforms but DRM call this function to create the screen and populate
* the driver_configs. DRM inherits that information from its display - GBM.
*/
EGLBoolean
dri2_create_screen(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (dri2_dpy->image_driver) {
dri2_dpy->dri_screen =
dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
dri2_dpy->loader_extensions,
dri2_dpy->driver_extensions,
&dri2_dpy->driver_configs,
disp);
} else if (dri2_dpy->dri2) {
if (dri2_dpy->dri2->base.version >= 4) {
dri2_dpy->dri_screen =
dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
dri2_dpy->loader_extensions,
dri2_dpy->driver_extensions,
&dri2_dpy->driver_configs, disp);
} else {
dri2_dpy->dri_screen =
dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
dri2_dpy->loader_extensions,
&dri2_dpy->driver_configs, disp);
}
} else {
assert(dri2_dpy->swrast);
if (dri2_dpy->swrast->base.version >= 4) {
dri2_dpy->dri_screen =
dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
dri2_dpy->driver_extensions,
&dri2_dpy->driver_configs, disp);
} else {
dri2_dpy->dri_screen =
dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
&dri2_dpy->driver_configs, disp);
}
}
if (dri2_dpy->dri_screen == NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
return EGL_FALSE;
}
dri2_dpy->own_dri_screen = true;
return EGL_TRUE;
}
EGLBoolean
dri2_setup_extensions(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const struct dri2_extension_match *mandatory_core_extensions;
const __DRIextension **extensions;
extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
if (dri2_dpy->image_driver || dri2_dpy->dri2)
mandatory_core_extensions = dri2_core_extensions;
else
mandatory_core_extensions = swrast_core_extensions;
if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
return EGL_FALSE;
dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
return EGL_TRUE;
}
/**
* Called via eglInitialize(), GLX_drv->API.Initialize().
*
* This must be guaranteed to be called exactly once, even if eglInitialize is
* called many times (without a eglTerminate in between).
*/
static EGLBoolean
dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
{
EGLBoolean ret = EGL_FALSE;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
/* In the case where the application calls eglMakeCurrent(context1),
* eglTerminate, then eglInitialize again (without a call to eglReleaseThread
* or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
* initialized, as we need it to be able to free context1 correctly.
*
* It would probably be safest to forcibly release the display with
* dri2_display_release, to make sure the display is reinitialized correctly.
* However, the EGL spec states that we need to keep a reference to the
* current context (so we cannot call dri2_make_current(NULL)), and therefore
* we would leak context1 as we would be missing the old display connection
* to free it up correctly.
*/
if (dri2_dpy) {
dri2_dpy->ref_count++;
return EGL_TRUE;
}
/* not until swrast_dri is supported */
if (disp->Options.UseFallback)
return EGL_FALSE;
/* Nothing to initialize for a test only display */
if (disp->Options.TestOnly)
return EGL_TRUE;
switch (disp->Platform) {
#ifdef HAVE_SURFACELESS_PLATFORM
case _EGL_PLATFORM_SURFACELESS:
ret = dri2_initialize_surfaceless(drv, disp);
break;
#endif
#ifdef HAVE_X11_PLATFORM
case _EGL_PLATFORM_X11:
ret = dri2_initialize_x11(drv, disp);
break;
#endif
#ifdef HAVE_DRM_PLATFORM
case _EGL_PLATFORM_DRM:
ret = dri2_initialize_drm(drv, disp);
break;
#endif
#ifdef HAVE_WAYLAND_PLATFORM
case _EGL_PLATFORM_WAYLAND:
ret = dri2_initialize_wayland(drv, disp);
break;
#endif
#ifdef HAVE_ANDROID_PLATFORM
case _EGL_PLATFORM_ANDROID:
ret = dri2_initialize_android(drv, disp);
break;
#endif
default:
_eglLog(_EGL_WARNING, "No EGL platform enabled.");
return EGL_FALSE;
}
if (ret) {
dri2_dpy = dri2_egl_display(disp);
if (!dri2_dpy) {
return EGL_FALSE;
}
dri2_dpy->ref_count++;
}
return ret;
}
/**
* Decrement display reference count, and free up display if necessary.
*/
static void
dri2_display_release(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy;
if (!disp)
return;
dri2_dpy = dri2_egl_display(disp);
assert(dri2_dpy->ref_count > 0);
dri2_dpy->ref_count--;
if (dri2_dpy->ref_count > 0)
return;
_eglCleanupDisplay(disp);
dri2_display_destroy(disp);
}
void
dri2_display_destroy(_EGLDisplay *disp)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (dri2_dpy->own_dri_screen)
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
if (dri2_dpy->fd >= 0)
close(dri2_dpy->fd);
if (dri2_dpy->driver)
dlclose(dri2_dpy->driver);
free(dri2_dpy->driver_name);
#ifdef HAVE_WAYLAND_PLATFORM
free(dri2_dpy->device_name);
#endif
switch (disp->Platform) {
#ifdef HAVE_X11_PLATFORM
case _EGL_PLATFORM_X11:
if (dri2_dpy->own_device) {
xcb_disconnect(dri2_dpy->conn);
}
break;
#endif
#ifdef HAVE_DRM_PLATFORM
case _EGL_PLATFORM_DRM:
if (dri2_dpy->own_device) {
gbm_device_destroy(&dri2_dpy->gbm_dri->base);
}
break;
#endif
#ifdef HAVE_WAYLAND_PLATFORM
case _EGL_PLATFORM_WAYLAND:
if (dri2_dpy->wl_drm)
wl_drm_destroy(dri2_dpy->wl_drm);
if (dri2_dpy->wl_dmabuf)
zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
if (dri2_dpy->wl_shm)
wl_shm_destroy(dri2_dpy->wl_shm);
wl_registry_destroy(dri2_dpy->wl_registry);
wl_event_queue_destroy(dri2_dpy->wl_queue);
wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
if (dri2_dpy->own_device) {
wl_display_disconnect(dri2_dpy->wl_dpy);
}
break;
#endif
default:
break;
}
/* The drm platform does not create the screen/driver_configs but reuses
* the ones from the gbm device. As such the gbm itself is responsible
* for the cleanup.
*/
if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
free((__DRIconfig *) dri2_dpy->driver_configs[i]);
free(dri2_dpy->driver_configs);
}
free(dri2_dpy);
disp->DriverData = NULL;
}
/**
* Called via eglTerminate(), drv->API.Terminate().
*
* This must be guaranteed to be called exactly once, even if eglTerminate is
* called many times (without a eglInitialize in between).
*/
static EGLBoolean
dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
{
/* Release all non-current Context/Surfaces. */
_eglReleaseDisplayResources(drv, disp);
dri2_display_release(disp);
return EGL_TRUE;
}
/**
* Set the error code after a call to
* dri2_egl_display::dri2::createContextAttribs.
*/
static void
dri2_create_context_attribs_error(int dri_error)
{
EGLint egl_error;
switch (dri_error) {
case __DRI_CTX_ERROR_SUCCESS:
return;
case __DRI_CTX_ERROR_NO_MEMORY:
egl_error = EGL_BAD_ALLOC;
break;
/* From the EGL_KHR_create_context spec, section "Errors":
*
* * If <config> does not support a client API context compatible
* with the requested API major and minor version, [...] context flags,
* and context reset notification behavior (for client API types where
* these attributes are supported), then an EGL_BAD_MATCH error is
* generated.
*
* * If an OpenGL ES context is requested and the values for
* attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
* EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
* is not defined, than an EGL_BAD_MATCH error is generated.
*
* * If an OpenGL context is requested, the requested version is
* greater than 3.2, and the value for attribute
* EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
* bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
* EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
* one of these bits set; or if the implementation does not support
* the requested profile, then an EGL_BAD_MATCH error is generated.
*/
case __DRI_CTX_ERROR_BAD_API:
case __DRI_CTX_ERROR_BAD_VERSION:
case __DRI_CTX_ERROR_BAD_FLAG:
egl_error = EGL_BAD_MATCH;
break;
/* From the EGL_KHR_create_context spec, section "Errors":
*
* * If an attribute name or attribute value in <attrib_list> is not
* recognized (including unrecognized bits in bitmask attributes),
* then an EGL_BAD_ATTRIBUTE error is generated."
*/
case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
case __DRI_CTX_ERROR_UNKNOWN_FLAG:
egl_error = EGL_BAD_ATTRIBUTE;
break;
default:
assert(0);
egl_error = EGL_BAD_MATCH;
break;
}
_eglError(egl_error, "dri2_create_context");
}
static bool
dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
struct dri2_egl_display *dri2_dpy,
uint32_t *ctx_attribs,
unsigned *num_attribs)
{
int pos = 0;
assert(*num_attribs >= 8);
ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
/* If the implementation doesn't support the __DRI2_ROBUSTNESS
* extension, don't even try to send it the robust-access flag.
* It may explode. Instead, generate the required EGL error here.
*/
if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
&& !dri2_dpy->robustness) {
_eglError(EGL_BAD_MATCH, "eglCreateContext");
return false;
}
ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
ctx_attribs[pos++] = dri2_ctx->base.Flags |
(dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
}
if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
/* If the implementation doesn't support the __DRI2_ROBUSTNESS
* extension, don't even try to send it a reset strategy. It may
* explode. Instead, generate the required EGL error here.
*/
if (!dri2_dpy->robustness) {
_eglError(EGL_BAD_CONFIG, "eglCreateContext");
return false;
}
ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
}
*num_attribs = pos;
return true;
}
/**
* Called via eglCreateContext(), drv->API.CreateContext().
*/
static _EGLContext *
dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
_EGLContext *share_list, const EGLint *attrib_list)
{
struct dri2_egl_context *dri2_ctx;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
__DRIcontext *shared =
dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
const __DRIconfig *dri_config;
int api;
(void) drv;
dri2_ctx = malloc(sizeof *dri2_ctx);
if (!dri2_ctx) {
_eglError(EGL_BAD_ALLOC, "eglCreateContext");
return NULL;
}
if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
goto cleanup;
/* The EGL_EXT_create_context_robustness spec says:
*
* "Add to the eglCreateContext context creation errors: [...]
*
* * If the reset notification behavior of <share_context> and the
* newly created context are different then an EGL_BAD_MATCH error is
* generated."
*/
if (share_list && share_list->ResetNotificationStrategy !=
dri2_ctx->base.ResetNotificationStrategy) {
_eglError(EGL_BAD_MATCH, "eglCreateContext");
goto cleanup;
}
/* The EGL_KHR_create_context_no_error spec says:
*
* "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
* used to create <share_context> does not match the value of
* EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
*/
if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
_eglError(EGL_BAD_MATCH, "eglCreateContext");
goto cleanup;
}
switch (dri2_ctx->base.ClientAPI) {
case EGL_OPENGL_ES_API:
switch (dri2_ctx->base.ClientMajorVersion) {
case 1:
api = __DRI_API_GLES;
break;
case 2:
api = __DRI_API_GLES2;
break;
case 3:
api = __DRI_API_GLES3;
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglCreateContext");
free(dri2_ctx);
return NULL;
}
break;
case EGL_OPENGL_API:
if ((dri2_ctx->base.ClientMajorVersion >= 4
|| (dri2_ctx->base.ClientMajorVersion == 3
&& dri2_ctx->base.ClientMinorVersion >= 2))
&& dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
api = __DRI_API_OPENGL_CORE;
else
api = __DRI_API_OPENGL;
break;
default:
_eglError(EGL_BAD_PARAMETER, "eglCreateContext");
free(dri2_ctx);
return NULL;
}
if (conf != NULL) {
/* The config chosen here isn't necessarily
* used for surfaces later.
* A pixmap surface will use the single config.
* This opportunity depends on disabling the
* doubleBufferMode check in
* src/mesa/main/context.c:check_compatible()
*/
if (dri2_config->dri_config[1][0])
dri_config = dri2_config->dri_config[1][0];
else
dri_config = dri2_config->dri_config[0][0];
/* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
* This makes sure the back buffer will always be used.
*/
if (conf->SurfaceType & EGL_WINDOW_BIT)
dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
}
else
dri_config = NULL;
if (dri2_dpy->image_driver) {
unsigned error;
unsigned num_attribs = 8;
uint32_t ctx_attribs[8];
if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
&num_attribs))
goto cleanup;
dri2_ctx->dri_context =
dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
api,
dri_config,
shared,
num_attribs / 2,
ctx_attribs,
& error,
dri2_ctx);
dri2_create_context_attribs_error(error);
} else if (dri2_dpy->dri2) {
if (dri2_dpy->dri2->base.version >= 3) {
unsigned error;
unsigned num_attribs = 8;
uint32_t ctx_attribs[8];
if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
&num_attribs))
goto cleanup;
dri2_ctx->dri_context =
dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
api,
dri_config,
shared,
num_attribs / 2,
ctx_attribs,
& error,
dri2_ctx);
dri2_create_context_attribs_error(error);
} else {
dri2_ctx->dri_context =
dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
api,
dri_config,
shared,
dri2_ctx);
}
} else {
assert(dri2_dpy->swrast);
if (dri2_dpy->swrast->base.version >= 3) {
unsigned error;
unsigned num_attribs = 8;
uint32_t ctx_attribs[8];
if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
&num_attribs))
goto cleanup;
dri2_ctx->dri_context =
dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
api,
dri_config,
shared,
num_attribs / 2,
ctx_attribs,
& error,
dri2_ctx);
dri2_create_context_attribs_error(error);
} else {
dri2_ctx->dri_context =
dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
api,
dri_config,
shared,
dri2_ctx);
}
}
if (!dri2_ctx->dri_context)
goto cleanup;
return &dri2_ctx->base;
cleanup:
free(dri2_ctx);
return NULL;
}
/**
* Called via eglDestroyContext(), drv->API.DestroyContext().
*/
static EGLBoolean
dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
{
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (_eglPutContext(ctx)) {
dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
free(dri2_ctx);
}
return EGL_TRUE;
}
static EGLBoolean
dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
if (!_eglPutSurface(surf))
return EGL_TRUE;
return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
}
/**
* Called via eglMakeCurrent(), drv->API.MakeCurrent().
*/
static EGLBoolean
dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
_EGLSurface *rsurf, _EGLContext *ctx)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
_EGLContext *old_ctx;
_EGLSurface *old_dsurf, *old_rsurf;
_EGLSurface *tmp_dsurf, *tmp_rsurf;
__DRIdrawable *ddraw, *rdraw;
__DRIcontext *cctx;
EGLBoolean unbind;
if (!dri2_dpy)
return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
/* make new bindings */
if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
/* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
return EGL_FALSE;
}
/* flush before context switch */
if (old_ctx)
dri2_drv->glFlush();
ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
if (old_ctx) {
__DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
dri2_dpy->core->unbindContext(old_cctx);
}
unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
dri2_destroy_surface(drv, disp, old_dsurf);
dri2_destroy_surface(drv, disp, old_rsurf);
if (!unbind)
dri2_dpy->ref_count++;
if (old_ctx) {
EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
dri2_destroy_context(drv, disp, old_ctx);
dri2_display_release(old_disp);
}
return EGL_TRUE;
} else {
/* undo the previous _eglBindContext */
_eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
assert(&dri2_ctx->base == ctx &&
tmp_dsurf == dsurf &&
tmp_rsurf == rsurf);
_eglPutSurface(dsurf);
_eglPutSurface(rsurf);
_eglPutContext(ctx);
_eglPutSurface(old_dsurf);
_eglPutSurface(old_rsurf);
_eglPutContext(old_ctx);
/* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
* setting the error to EGL_BAD_MATCH is surely better than leaving it
* as EGL_SUCCESS.
*/
return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
}
}
__DRIdrawable *
dri2_surface_get_dri_drawable(_EGLSurface *surf)
{
struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
return dri2_surf->dri_drawable;
}
/*
* Called from eglGetProcAddress() via drv->API.GetProcAddress().
*/
static _EGLProc
dri2_get_proc_address(_EGLDriver *drv, const char *procname)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
return dri2_drv->get_proc_address(procname);
}
static _EGLSurface*
dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLConfig *conf, void *native_window,
const EGLint *attrib_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
attrib_list);
}
static _EGLSurface*
dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLConfig *conf, void *native_pixmap,
const EGLint *attrib_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
attrib_list);
}
static _EGLSurface*
dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLConfig *conf, const EGLint *attrib_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
}
static EGLBoolean
dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLint interval)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
}
/**
* Asks the client API to flush any rendering to the drawable so that we can
* do our swapbuffers.
*/
void
dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
__DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
if (dri2_dpy->flush) {
if (dri2_dpy->flush->base.version >= 4) {
/* We know there's a current context because:
*
* "If surface is not bound to the calling thread’s current
* context, an EGL_BAD_SURFACE error is generated."
*/
_EGLContext *ctx = _eglGetCurrentContext();
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
/* From the EGL 1.4 spec (page 52):
*
* "The contents of ancillary buffers are always undefined
* after calling eglSwapBuffers."
*/
dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
dri_drawable,
__DRI2_FLUSH_DRAWABLE |
__DRI2_FLUSH_INVALIDATE_ANCILLARY,
__DRI2_THROTTLE_SWAPBUFFER);
} else {
dri2_dpy->flush->flush(dri_drawable);
}
}
}
static EGLBoolean
dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
}
static EGLBoolean
dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLSurface *surf,
const EGLint *rects, EGLint n_rects)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
rects, n_rects);
}
static EGLBoolean
dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLint numRects, const EGLint *rects)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
}
static EGLBoolean
dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLint *rects, EGLint n_rects)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
}
static EGLBoolean
dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLint x, EGLint y, EGLint width, EGLint height)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
}
static EGLBoolean
dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
void *native_pixmap_target)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
}
static EGLint
dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
}
static EGLBoolean
dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_EGLSurface *surf = ctx->DrawSurface;
__DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
(void) drv;
/* FIXME: If EGL allows frontbuffer rendering for window surfaces,
* we need to copy fake to real here.*/
if (dri2_dpy->flush != NULL)
dri2_dpy->flush->flush(dri_drawable);
return EGL_TRUE;
}
static EGLBoolean
dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
{
(void) drv;
(void) disp;
if (engine != EGL_CORE_NATIVE_ENGINE)
return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
/* glXWaitX(); */
return EGL_TRUE;
}
static EGLBoolean
dri2_bind_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
GLint format, target;
__DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
if (!_eglBindTexImage(drv, disp, surf, buffer))
return EGL_FALSE;
switch (surf->TextureFormat) {
case EGL_TEXTURE_RGB:
format = __DRI_TEXTURE_FORMAT_RGB;
break;
case EGL_TEXTURE_RGBA:
format = __DRI_TEXTURE_FORMAT_RGBA;
break;
default:
assert(!"Unexpected texture format in dri2_bind_tex_image()");
format = __DRI_TEXTURE_FORMAT_RGBA;
}
switch (surf->TextureTarget) {
case EGL_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
default:
target = GL_TEXTURE_2D;
assert(!"Unexpected texture target in dri2_bind_tex_image()");
}
dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
target, format,
dri_drawable);
return EGL_TRUE;
}
static EGLBoolean
dri2_release_tex_image(_EGLDriver *drv,
_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx;
_EGLContext *ctx;
GLint target;
__DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
ctx = _eglGetCurrentContext();
dri2_ctx = dri2_egl_context(ctx);
if (!_eglReleaseTexImage(drv, disp, surf, buffer))
return EGL_FALSE;
switch (surf->TextureTarget) {
case EGL_TEXTURE_2D:
target = GL_TEXTURE_2D;
break;
default:
assert(0);
}
if (dri2_dpy->tex_buffer->base.version >= 3 &&
dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
target, dri_drawable);
}
return EGL_TRUE;
}
static _EGLImage*
dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
EGLenum target, EGLClientBuffer buffer,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
attr_list);
}
static _EGLImage *
dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
{
struct dri2_egl_image *dri2_img;
if (dri_image == NULL) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image");
return NULL;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image");
return NULL;
}
_eglInitImage(&dri2_img->base, disp);
dri2_img->dri_image = dri_image;
return &dri2_img->base;
}
static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
__DRIimage *dri_image;
if (renderbuffer == 0) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
if (!disp->Extensions.KHR_gl_renderbuffer_image) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
dri_image =
dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
renderbuffer, NULL);
return dri2_create_image_from_dri(disp, dri_image);
}
#ifdef HAVE_WAYLAND_PLATFORM
/* This structure describes how a wl_buffer maps to one or more
* __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
* offsets and strides of the planes in the buffer. This table maps a
* wl_drm format code to a description of the planes in the buffer
* that lets us create a __DRIimage for each of the planes. */
static const struct wl_drm_components_descriptor {
uint32_t dri_components;
EGLint components;
int nplanes;
} wl_drm_components[] = {
{ __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
{ __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
{ __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
{ __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
{ __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
};
static _EGLImage *
dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer _buffer,
const EGLint *attr_list)
{
struct wl_drm_buffer *buffer;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
const struct wl_drm_components_descriptor *f;
__DRIimage *dri_image;
_EGLImageAttribs attrs;
int32_t plane;
buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
(struct wl_resource *) _buffer);
if (!buffer)
return NULL;
if (!_eglParseImageAttribList(&attrs, disp, attr_list))
return NULL;
plane = attrs.PlaneWL;
f = buffer->driver_format;
if (plane < 0 || plane >= f->nplanes) {
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_wayland_wl_buffer (plane out of bounds)");
return NULL;
}
dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
if (dri_image == NULL) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
return NULL;
}
return dri2_create_image_from_dri(disp, dri_image);
}
#endif
static EGLBoolean
dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
EGLuint64KHR *ust, EGLuint64KHR *msc,
EGLuint64KHR *sbc)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
}
/**
* Set the error code after a call to
* dri2_egl_image::dri_image::createImageFromTexture.
*/
static void
dri2_create_image_khr_texture_error(int dri_error)
{
EGLint egl_error;
switch (dri_error) {
case __DRI_IMAGE_ERROR_SUCCESS:
return;
case __DRI_IMAGE_ERROR_BAD_ALLOC:
egl_error = EGL_BAD_ALLOC;
break;
case __DRI_IMAGE_ERROR_BAD_MATCH:
egl_error = EGL_BAD_MATCH;
break;
case __DRI_IMAGE_ERROR_BAD_PARAMETER:
egl_error = EGL_BAD_PARAMETER;
break;
case __DRI_IMAGE_ERROR_BAD_ACCESS:
egl_error = EGL_BAD_ACCESS;
break;
default:
assert(0);
egl_error = EGL_BAD_MATCH;
break;
}
_eglError(egl_error, "dri2_create_image_khr_texture");
}
static _EGLImage *
dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
EGLenum target,
EGLClientBuffer buffer,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_image *dri2_img;
GLuint texture = (GLuint) (uintptr_t) buffer;
_EGLImageAttribs attrs;
GLuint depth;
GLenum gl_target;
unsigned error;
if (texture == 0) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
if (!_eglParseImageAttribList(&attrs, disp, attr_list))
return EGL_NO_IMAGE_KHR;
switch (target) {
case EGL_GL_TEXTURE_2D_KHR:
if (!disp->Extensions.KHR_gl_texture_2D_image) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
depth = 0;
gl_target = GL_TEXTURE_2D;
break;
case EGL_GL_TEXTURE_3D_KHR:
if (!disp->Extensions.KHR_gl_texture_3D_image) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
depth = attrs.GLTextureZOffset;
gl_target = GL_TEXTURE_3D;
break;
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
gl_target = GL_TEXTURE_CUBE_MAP;
break;
default:
unreachable("Unexpected target in dri2_create_image_khr_texture()");
return EGL_NO_IMAGE_KHR;
}
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
_eglInitImage(&dri2_img->base, disp);
dri2_img->dri_image =
dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
gl_target,
texture,
depth,
attrs.GLTextureLevel,
&error,
dri2_img);
dri2_create_image_khr_texture_error(error);
if (!dri2_img->dri_image) {
free(dri2_img);
return EGL_NO_IMAGE_KHR;
}
return &dri2_img->base;
}
static EGLBoolean
dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLint attribute, EGLint *value)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
if (!dri2_dpy->vtbl->query_surface)
return _eglQuerySurface(drv, dpy, surf, attribute, value);
return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
}
static struct wl_buffer*
dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
_EGLImage *img)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
}
#ifdef HAVE_LIBDRM
static _EGLImage *
dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer, const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
EGLint format, name, pitch;
_EGLImageAttribs attrs;
__DRIimage *dri_image;
name = (EGLint) (uintptr_t) buffer;
if (!_eglParseImageAttribList(&attrs, disp, attr_list))
return NULL;
if (attrs.Width <= 0 || attrs.Height <= 0 ||
attrs.DRMBufferStrideMESA <= 0) {
_eglError(EGL_BAD_PARAMETER,
"bad width, height or stride");
return NULL;
}
switch (attrs.DRMBufferFormatMESA) {
case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
format = __DRI_IMAGE_FORMAT_ARGB8888;
pitch = attrs.DRMBufferStrideMESA;
break;
default:
_eglError(EGL_BAD_PARAMETER,
"dri2_create_image_khr: unsupported pixmap depth");
return NULL;
}
dri_image =
dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
attrs.Width,
attrs.Height,
format,
name,
pitch,
NULL);
return dri2_create_image_from_dri(disp, dri_image);
}
static EGLBoolean
dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
{
/**
* The spec says:
*
* "Required attributes and their values are as follows:
*
* * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
*
* * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
* by drm_fourcc.h and used as the pixel_format parameter of the
* drm_mode_fb_cmd2 ioctl."
*
* and
*
* "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
* incomplete, EGL_BAD_PARAMETER is generated."
*/
if (attrs->Width <= 0 || attrs->Height <= 0 ||
!attrs->DMABufFourCC.IsPresent)
return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
/**
* Also:
*
* "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
* specified for a plane's pitch or offset isn't supported by EGL,
* EGL_BAD_ACCESS is generated."
*/
for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
if (attrs->DMABufPlanePitches[i].IsPresent &&
attrs->DMABufPlanePitches[i].Value <= 0)
return _eglError(EGL_BAD_ACCESS, "invalid pitch");
}
/**
* If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
* attribute values may be given.
*
* This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
* EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
*/
for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
attrs->DMABufPlaneModifiersHi[i].IsPresent)
return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
}
/* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
* mandate it, we only accept the same modifier across all planes. */
for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
if (attrs->DMABufPlaneFds[i].IsPresent) {
if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
(attrs->DMABufPlaneModifiersLo[0].Value !=
attrs->DMABufPlaneModifiersLo[i].Value) ||
(attrs->DMABufPlaneModifiersHi[0].Value !=
attrs->DMABufPlaneModifiersHi[i].Value))
return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
}
}
return EGL_TRUE;
}
/* Returns the total number of file descriptors. Zero indicates an error. */
static unsigned
dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
{
unsigned plane_n;
switch (attrs->DMABufFourCC.Value) {
case DRM_FORMAT_R8:
case DRM_FORMAT_RG88:
case DRM_FORMAT_GR88:
case DRM_FORMAT_R16:
case DRM_FORMAT_GR1616:
case DRM_FORMAT_RGB332:
case DRM_FORMAT_BGR233:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_XBGR4444:
case DRM_FORMAT_RGBX4444:
case DRM_FORMAT_BGRX4444:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_ABGR4444:
case DRM_FORMAT_RGBA4444:
case DRM_FORMAT_BGRA4444:
case DRM_FORMAT_XRGB1555:
case DRM_FORMAT_XBGR1555:
case DRM_FORMAT_RGBX5551:
case DRM_FORMAT_BGRX5551:
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_RGB565:
case DRM_FORMAT_BGR565:
case DRM_FORMAT_RGB888:
case DRM_FORMAT_BGR888:
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_RGBX8888:
case DRM_FORMAT_BGRX8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_XBGR2101010:
case DRM_FORMAT_RGBX1010102:
case DRM_FORMAT_BGRX1010102:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_RGBA1010102:
case DRM_FORMAT_BGRA1010102:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
plane_n = 1;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV61:
plane_n = 2;
break;
case DRM_FORMAT_YUV410:
case DRM_FORMAT_YVU410:
case DRM_FORMAT_YUV411:
case DRM_FORMAT_YVU411:
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
plane_n = 3;
break;
default:
_eglError(EGL_BAD_ATTRIBUTE, "invalid format");
return 0;
}
/**
* The spec says:
*
* "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
* incomplete, EGL_BAD_PARAMETER is generated."
*/
for (unsigned i = 0; i < plane_n; ++i) {
if (!attrs->DMABufPlaneFds[i].IsPresent ||
!attrs->DMABufPlaneOffsets[i].IsPresent ||
!attrs->DMABufPlanePitches[i].IsPresent) {
_eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
return 0;
}
}
/**
* The spec also says:
*
* "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
* attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
* generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
* or EGL_DMA_BUF_PLANE3_* attributes are specified."
*/
for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
if (attrs->DMABufPlaneFds[i].IsPresent ||
attrs->DMABufPlaneOffsets[i].IsPresent ||
attrs->DMABufPlanePitches[i].IsPresent ||
attrs->DMABufPlaneModifiersLo[i].IsPresent ||
attrs->DMABufPlaneModifiersHi[i].IsPresent) {
/**
* The modifiers extension spec says:
*
* "Modifiers may modify any attribute of a buffer import, including
* but not limited to adding extra planes to a format which
* otherwise does not have those planes. As an example, a modifier
* may add a plane for an external compression buffer to a
* single-plane format. The exact meaning and effect of any
* modifier is canonically defined by drm_fourcc.h, not as part of
* this extension."
*/
if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
attrs->DMABufPlaneModifiersHi[i].IsPresent)
continue;
_eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
return 0;
}
}
return plane_n;
}
static EGLBoolean
dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
EGLint max, EGLint *formats, EGLint *count)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (max < 0 || (max > 0 && formats == NULL))
return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
if (dri2_dpy->image->base.version < 15 ||
dri2_dpy->image->queryDmaBufFormats == NULL)
return EGL_FALSE;
if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
formats, count))
return EGL_FALSE;
return EGL_TRUE;
}
static EGLBoolean
dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
EGLint max, EGLuint64KHR *modifiers,
EGLBoolean *external_only, EGLint *count)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
if (max < 0)
return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
if (max > 0 && modifiers == NULL)
return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
if (dri2_dpy->image->base.version < 15 ||
dri2_dpy->image->queryDmaBufModifiers == NULL)
return EGL_FALSE;
if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
max, modifiers,
(unsigned int *) external_only,
count) == false)
return _eglError(EGL_BAD_PARAMETER, "invalid format");
return EGL_TRUE;
}
/**
* The spec says:
*
* "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
* EGL will take a reference to the dma_buf(s) which it will release at any
* time while the EGLDisplay is initialized. It is the responsibility of the
* application to close the dma_buf file descriptors."
*
* Therefore we must never close or otherwise modify the file descriptors.
*/
_EGLImage *
dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
EGLClientBuffer buffer, const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
_EGLImage *res;
_EGLImageAttribs attrs;
__DRIimage *dri_image;
unsigned num_fds;
int fds[DMA_BUF_MAX_PLANES];
int pitches[DMA_BUF_MAX_PLANES];
int offsets[DMA_BUF_MAX_PLANES];
uint64_t modifier;
bool has_modifier = false;
unsigned error;
/**
* The spec says:
*
* ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
* error EGL_BAD_PARAMETER is generated."
*/
if (buffer != NULL) {
_eglError(EGL_BAD_PARAMETER, "buffer not NULL");
return NULL;
}
if (!_eglParseImageAttribList(&attrs, disp, attr_list))
return NULL;
if (!dri2_check_dma_buf_attribs(&attrs))
return NULL;
num_fds = dri2_check_dma_buf_format(&attrs);
if (!num_fds)
return NULL;
for (unsigned i = 0; i < num_fds; ++i) {
fds[i] = attrs.DMABufPlaneFds[i].Value;
pitches[i] = attrs.DMABufPlanePitches[i].Value;
offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
}
/* dri2_check_dma_buf_attribs ensures that the modifier, if available,
* will be present in attrs.DMABufPlaneModifiersLo[0] and
* attrs.DMABufPlaneModifiersHi[0] */
if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
has_modifier = true;
}
if (has_modifier) {
if (dri2_dpy->image->base.version < 15 ||
dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
_eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
return EGL_NO_IMAGE_KHR;
}
dri_image =
dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
modifier, fds, num_fds, pitches, offsets,
attrs.DMABufYuvColorSpaceHint.Value,
attrs.DMABufSampleRangeHint.Value,
attrs.DMABufChromaHorizontalSiting.Value,
attrs.DMABufChromaVerticalSiting.Value,
&error,
NULL);
}
else {
dri_image =
dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
fds, num_fds, pitches, offsets,
attrs.DMABufYuvColorSpaceHint.Value,
attrs.DMABufSampleRangeHint.Value,
attrs.DMABufChromaHorizontalSiting.Value,
attrs.DMABufChromaVerticalSiting.Value,
&error,
NULL);
}
dri2_create_image_khr_texture_error(error);
if (!dri_image)
return EGL_NO_IMAGE_KHR;
res = dri2_create_image_from_dri(disp, dri_image);
return res;
}
static _EGLImage *
dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
const EGLint *attr_list)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img;
_EGLImageAttribs attrs;
unsigned int dri_use, valid_mask;
int format;
(void) drv;
if (!attr_list) {
_eglError(EGL_BAD_PARAMETER, __func__);
return EGL_NO_IMAGE_KHR;
}
if (!_eglParseImageAttribList(&attrs, disp, attr_list))
return EGL_NO_IMAGE_KHR;
if (attrs.Width <= 0 || attrs.Height <= 0) {
_eglError(EGL_BAD_PARAMETER, __func__);
return EGL_NO_IMAGE_KHR;
}
switch (attrs.DRMBufferFormatMESA) {
case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
format = __DRI_IMAGE_FORMAT_ARGB8888;
break;
default:
_eglError(EGL_BAD_PARAMETER, __func__);
return EGL_NO_IMAGE_KHR;
}
valid_mask =
EGL_DRM_BUFFER_USE_SCANOUT_MESA |
EGL_DRM_BUFFER_USE_SHARE_MESA |
EGL_DRM_BUFFER_USE_CURSOR_MESA;
if (attrs.DRMBufferUseMESA & ~valid_mask) {
_eglError(EGL_BAD_PARAMETER, __func__);
return EGL_NO_IMAGE_KHR;
}
dri_use = 0;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
dri_use |= __DRI_IMAGE_USE_SHARE;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
dri_use |= __DRI_IMAGE_USE_SCANOUT;
if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
dri_use |= __DRI_IMAGE_USE_CURSOR;
dri2_img = malloc(sizeof *dri2_img);
if (!dri2_img) {
_eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
_eglInitImage(&dri2_img->base, disp);
dri2_img->dri_image =
dri2_dpy->image->createImage(dri2_dpy->dri_screen,
attrs.Width, attrs.Height,
format, dri_use, dri2_img);
if (dri2_img->dri_image == NULL) {
free(dri2_img);
_eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
return EGL_NO_IMAGE_KHR;
}
return &dri2_img->base;
}
static EGLBoolean
dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
EGLint *name, EGLint *handle, EGLint *stride)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(img);
(void) drv;
if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_NAME, name))
return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
if (handle)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_HANDLE, handle);
if (stride)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, stride);
return EGL_TRUE;
}
static EGLBoolean
dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
_EGLImage *img,
EGLint *fourcc, EGLint *nplanes,
EGLuint64KHR *modifiers)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(img);
(void) drv;
if (nplanes)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
if (fourcc)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_FOURCC, fourcc);
if (modifiers)
*modifiers = 0;
return EGL_TRUE;
}
static EGLBoolean
dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
int *fds, EGLint *strides, EGLint *offsets)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(img);
(void) drv;
/* rework later to provide multiple fds/strides/offsets */
if (fds)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_FD, fds);
if (strides)
dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_STRIDE, strides);
if (offsets) {
int img_offset;
bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
__DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
if (ret)
offsets[0] = img_offset;
else
offsets[0] = 0;
}
return EGL_TRUE;
}
#endif
_EGLImage *
dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
_EGLContext *ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attr_list)
{
(void) drv;
switch (target) {
case EGL_GL_TEXTURE_2D_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
case EGL_GL_TEXTURE_3D_KHR:
return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
case EGL_GL_RENDERBUFFER_KHR:
return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
#ifdef HAVE_LIBDRM
case EGL_DRM_BUFFER_MESA:
return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
case EGL_LINUX_DMA_BUF_EXT:
return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
#endif
#ifdef HAVE_WAYLAND_PLATFORM
case EGL_WAYLAND_BUFFER_WL:
return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
#endif
default:
_eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
return EGL_NO_IMAGE_KHR;
}
}
static EGLBoolean
dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct dri2_egl_image *dri2_img = dri2_egl_image(image);
(void) drv;
dri2_dpy->image->destroyImage(dri2_img->dri_image);
free(dri2_img);
return EGL_TRUE;
}
#ifdef HAVE_WAYLAND_PLATFORM
static void
dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
struct wl_drm_buffer *buffer)
{
_EGLDisplay *disp = user_data;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
__DRIimage *img;
int dri_components = 0;
if (fd == -1)
img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
buffer->width,
buffer->height,
buffer->format,
(int*)&name, 1,
buffer->stride,
buffer->offset,
NULL);
else
img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
buffer->width,
buffer->height,
buffer->format,
&fd, 1,
buffer->stride,
buffer->offset,
NULL);
if (img == NULL)
return;
dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
buffer->driver_format = NULL;
for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
if (wl_drm_components[i].dri_components == dri_components)
buffer->driver_format = &wl_drm_components[i];
if (buffer->driver_format == NULL)
dri2_dpy->image->destroyImage(img);
else
buffer->driver_buffer = img;
}
static void
dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
{
_EGLDisplay *disp = user_data;
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
dri2_dpy->image->destroyImage(buffer->driver_buffer);
}
static struct wayland_drm_callbacks wl_drm_callbacks = {
.authenticate = NULL,
.reference_buffer = dri2_wl_reference_buffer,
.release_buffer = dri2_wl_release_buffer
};
static EGLBoolean
dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_display *wl_dpy)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
int flags = 0;
uint64_t cap;
(void) drv;
if (dri2_dpy->wl_server_drm)
return EGL_FALSE;
wl_drm_callbacks.authenticate =
(int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
dri2_dpy->image->base.version >= 7 &&
dri2_dpy->image->createImageFromFds != NULL)
flags |= WAYLAND_DRM_PRIME;
dri2_dpy->wl_server_drm =
wayland_drm_init(wl_dpy, dri2_dpy->device_name,
&wl_drm_callbacks, disp, flags);
if (!dri2_dpy->wl_server_drm)
return EGL_FALSE;
#ifdef HAVE_DRM_PLATFORM
/* We have to share the wl_drm instance with gbm, so gbm can convert
* wl_buffers to gbm bos. */
if (dri2_dpy->gbm_dri)
dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
#endif
return EGL_TRUE;
}
static EGLBoolean
dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_display *wl_dpy)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
(void) drv;
if (!dri2_dpy->wl_server_drm)
return EGL_FALSE;
wayland_drm_uninit(dri2_dpy->wl_server_drm);
dri2_dpy->wl_server_drm = NULL;
return EGL_TRUE;
}
static EGLBoolean
dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
struct wl_resource *buffer_resource,
EGLint attribute, EGLint *value)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
struct wl_drm_buffer *buffer;
const struct wl_drm_components_descriptor *format;
buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
if (!buffer)
return EGL_FALSE;
format = buffer->driver_format;
switch (attribute) {
case EGL_TEXTURE_FORMAT:
*value = format->components;
return EGL_TRUE;
case EGL_WIDTH:
*value = buffer->width;
return EGL_TRUE;
case EGL_HEIGHT:
*value = buffer->height;
return EGL_TRUE;
}
return EGL_FALSE;
}
#endif
static void
dri2_egl_ref_sync(struct dri2_egl_sync *sync)
{
p_atomic_inc(&sync->refcount);
}
static void
dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
struct dri2_egl_sync *dri2_sync)
{
if (p_atomic_dec_zero(&dri2_sync->refcount)) {
switch (dri2_sync->base.Type) {
case EGL_SYNC_REUSABLE_KHR:
cnd_destroy(&dri2_sync->cond);
break;
case EGL_SYNC_NATIVE_FENCE_ANDROID:
if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
close(dri2_sync->base.SyncFd);
break;
default:
break;
}
if (dri2_sync->fence)
dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
free(dri2_sync);
}
}
static _EGLSync *
dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
EGLenum type, const EGLAttrib *attrib_list)
{
_EGLContext *ctx = _eglGetCurrentContext();
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_sync *dri2_sync;
EGLint ret;
pthread_condattr_t attr;
dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
if (!dri2_sync) {
_eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
return NULL;
}
if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
free(dri2_sync);
return NULL;
}
switch (type) {
case EGL_SYNC_FENCE_KHR:
dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
if (!dri2_sync->fence) {
/* Why did it fail? DRI doesn't return an error code, so we emit
* a generic EGL error that doesn't communicate user error.
*/
_eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
break;
case EGL_SYNC_CL_EVENT_KHR:
dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
dri2_dpy->dri_screen,
dri2_sync->base.CLEvent);
/* this can only happen if the cl_event passed in is invalid. */
if (!dri2_sync->fence) {
_eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
/* the initial status must be "signaled" if the cl_event is signaled */
if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
dri2_sync->fence, 0, 0))
dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
break;
case EGL_SYNC_REUSABLE_KHR:
/* intialize attr */
ret = pthread_condattr_init(&attr);
if (ret) {
_eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
/* change clock attribute to CLOCK_MONOTONIC */
ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
if (ret) {
_eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
ret = pthread_cond_init(&dri2_sync->cond, &attr);
if (ret) {
_eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
/* initial status of reusable sync must be "unsignaled" */
dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
break;
case EGL_SYNC_NATIVE_FENCE_ANDROID:
if (dri2_dpy->fence->create_fence_fd) {
dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
dri2_ctx->dri_context,
dri2_sync->base.SyncFd);
}
if (!dri2_sync->fence) {
_eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
free(dri2_sync);
return NULL;
}
break;
}
p_atomic_set(&dri2_sync->refcount, 1);
return &dri2_sync->base;
}
static EGLBoolean
dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
EGLint ret = EGL_TRUE;
EGLint err;
/* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
* then unlock all threads possibly blocked by the reusable sync before
* destroying it.
*/
if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
/* unblock all threads currently blocked by sync */
err = cnd_broadcast(&dri2_sync->cond);
if (err) {
_eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
ret = EGL_FALSE;
}
}
dri2_egl_unref_sync(dri2_dpy, dri2_sync);
return ret;
}
static EGLint
dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
/* try to retrieve the actual native fence fd.. if rendering is
* not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
*/
sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
dri2_sync->fence);
}
if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
/* if native fence fd still not created, return an error: */
_eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
return EGL_NO_NATIVE_FENCE_FD_ANDROID;
}
return dup(sync->SyncFd);
}
static EGLint
dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
EGLint flags, EGLTime timeout)
{
_EGLContext *ctx = _eglGetCurrentContext();
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
unsigned wait_flags = 0;
/* timespecs for cnd_timedwait */
struct timespec current;
xtime expire;
EGLint ret = EGL_CONDITION_SATISFIED_KHR;
/* The EGL_KHR_fence_sync spec states:
*
* "If no context is current for the bound API,
* the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
*/
if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
/* the sync object should take a reference while waiting */
dri2_egl_ref_sync(dri2_sync);
switch (sync->Type) {
case EGL_SYNC_FENCE_KHR:
case EGL_SYNC_NATIVE_FENCE_ANDROID:
case EGL_SYNC_CL_EVENT_KHR:
if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
dri2_sync->fence, wait_flags,
timeout))
dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
else
ret = EGL_TIMEOUT_EXPIRED_KHR;
break;
case EGL_SYNC_REUSABLE_KHR:
if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
(flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
/* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
dri2_drv->glFlush();
}
/* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
if (timeout == EGL_FOREVER_KHR) {
mtx_lock(&dri2_sync->mutex);
cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
mtx_unlock(&dri2_sync->mutex);
} else {
/* if reusable sync has not been yet signaled */
if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
clock_gettime(CLOCK_MONOTONIC, &current);
/* calculating when to expire */
expire.nsec = timeout % 1000000000L;
expire.sec = timeout / 1000000000L;
expire.nsec += current.tv_nsec;
expire.sec += current.tv_sec;
/* expire.nsec now is a number between 0 and 1999999998 */
if (expire.nsec > 999999999L) {
expire.sec++;
expire.nsec -= 1000000000L;
}
mtx_lock(&dri2_sync->mutex);
ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
mtx_unlock(&dri2_sync->mutex);
if (ret == thrd_busy) {
if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
ret = EGL_TIMEOUT_EXPIRED_KHR;
} else {
_eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
ret = EGL_FALSE;
}
}
}
}
break;
}
dri2_egl_unref_sync(dri2_dpy, dri2_sync);
return ret;
}
static EGLBoolean
dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
EGLenum mode)
{
struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
EGLint ret;
if (sync->Type != EGL_SYNC_REUSABLE_KHR)
return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
dri2_sync->base.SyncStatus = mode;
if (mode == EGL_SIGNALED_KHR) {
ret = cnd_broadcast(&dri2_sync->cond);
/* fail to broadcast */
if (ret)
return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
}
return EGL_TRUE;
}
static EGLint
dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
{
_EGLContext *ctx = _eglGetCurrentContext();
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
dri2_sync->fence, 0);
return EGL_TRUE;
}
static int
dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
struct mesa_glinterop_device_info *out)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
if (!dri2_dpy->interop)
return MESA_GLINTEROP_UNSUPPORTED;
return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
}
static int
dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
struct mesa_glinterop_export_in *in,
struct mesa_glinterop_export_out *out)
{
struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
if (!dri2_dpy->interop)
return MESA_GLINTEROP_UNSUPPORTED;
return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
}
static void
dri2_unload(_EGLDriver *drv)
{
struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
dlclose(dri2_drv->handle);
free(dri2_drv);
}
static EGLBoolean
dri2_load(_EGLDriver *drv)
{<