wlroots-hyprland/render/egl.c
Simon Ser af2f69e6c1 render/egl: unset current context after swapping buffers
After swapping buffers, it doesn't make sense to perform more rendering
operations. Unset the context to reflect this.

This commit makes it so the context is always only current between
wlr_egl_make_current and wlr_egl_swap_buffers.

This is an alternative to [1].

[1]: https://github.com/swaywm/wlroots/pull/2212
2020-05-20 17:39:34 +02:00

707 lines
20 KiB
C

#include <assert.h>
#include <drm_fourcc.h>
#include <stdio.h>
#include <stdlib.h>
#include <wlr/render/egl.h>
#include <wlr/util/log.h>
#include <wlr/util/region.h>
static bool egl_get_config(EGLDisplay disp, const EGLint *attribs,
EGLConfig *out, EGLint visual_id) {
EGLint count = 0, matched = 0, ret;
ret = eglGetConfigs(disp, NULL, 0, &count);
if (ret == EGL_FALSE || count == 0) {
wlr_log(WLR_ERROR, "eglGetConfigs returned no configs");
return false;
}
EGLConfig configs[count];
ret = eglChooseConfig(disp, attribs, configs, count, &matched);
if (ret == EGL_FALSE) {
wlr_log(WLR_ERROR, "eglChooseConfig failed");
return false;
}
for (int i = 0; i < matched; ++i) {
EGLint visual;
if (!eglGetConfigAttrib(disp, configs[i],
EGL_NATIVE_VISUAL_ID, &visual)) {
continue;
}
if (!visual_id || visual == visual_id) {
*out = configs[i];
return true;
}
}
wlr_log(WLR_ERROR, "no valid egl config found");
return false;
}
static enum wlr_log_importance egl_log_importance_to_wlr(EGLint type) {
switch (type) {
case EGL_DEBUG_MSG_CRITICAL_KHR: return WLR_ERROR;
case EGL_DEBUG_MSG_ERROR_KHR: return WLR_ERROR;
case EGL_DEBUG_MSG_WARN_KHR: return WLR_ERROR;
case EGL_DEBUG_MSG_INFO_KHR: return WLR_INFO;
default: return WLR_INFO;
}
}
static void egl_log(EGLenum error, const char *command, EGLint msg_type,
EGLLabelKHR thread, EGLLabelKHR obj, const char *msg) {
_wlr_log(egl_log_importance_to_wlr(msg_type),
"[EGL] command: %s, error: 0x%x, message: \"%s\"",
command, error, msg);
}
static bool check_egl_ext(const char *exts, const char *ext) {
size_t extlen = strlen(ext);
const char *end = exts + strlen(exts);
while (exts < end) {
if (*exts == ' ') {
exts++;
continue;
}
size_t n = strcspn(exts, " ");
if (n == extlen && strncmp(ext, exts, n) == 0) {
return true;
}
exts += n;
}
return false;
}
static void load_egl_proc(void *proc_ptr, const char *name) {
void *proc = (void *)eglGetProcAddress(name);
if (proc == NULL) {
wlr_log(WLR_ERROR, "eglGetProcAddress(%s) failed", name);
abort();
}
*(void **)proc_ptr = proc;
}
static int get_egl_dmabuf_formats(struct wlr_egl *egl, int **formats);
static int get_egl_dmabuf_modifiers(struct wlr_egl *egl, int format,
uint64_t **modifiers);
static void init_dmabuf_formats(struct wlr_egl *egl) {
int *formats;
int formats_len = get_egl_dmabuf_formats(egl, &formats);
if (formats_len < 0) {
return;
}
for (int i = 0; i < formats_len; i++) {
uint32_t fmt = formats[i];
uint64_t *modifiers;
int modifiers_len = get_egl_dmabuf_modifiers(egl, fmt, &modifiers);
if (modifiers_len < 0) {
continue;
}
if (modifiers_len == 0) {
wlr_drm_format_set_add(&egl->dmabuf_formats, fmt, DRM_FORMAT_MOD_INVALID);
}
for (int j = 0; j < modifiers_len; j++) {
wlr_drm_format_set_add(&egl->dmabuf_formats, fmt, modifiers[j]);
}
free(modifiers);
}
char *str_formats = malloc(formats_len * 5 + 1);
if (str_formats == NULL) {
goto out;
}
for (int i = 0; i < formats_len; i++) {
snprintf(&str_formats[i*5], (formats_len - i) * 5 + 1, "%.4s ",
(char*)&formats[i]);
}
wlr_log(WLR_DEBUG, "Supported dmabuf buffer formats: %s", str_formats);
free(str_formats);
out:
free(formats);
}
bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
const EGLint *config_attribs, EGLint visual_id) {
// Check for EGL_EXT_platform_base before creating a display, because we
// actually use this extension to create displays. Check for EGL_KHR_debug
// before creating display to get EGL logs as soon as possible.
const char *exts_str = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
if (exts_str == NULL) {
wlr_log(WLR_ERROR, "Failed to query EGL extensions");
return false;
}
if (!check_egl_ext(exts_str, "EGL_EXT_platform_base")) {
wlr_log(WLR_ERROR, "EGL_EXT_platform_base not supported");
return false;
}
load_egl_proc(&egl->procs.eglGetPlatformDisplayEXT,
"eglGetPlatformDisplayEXT");
load_egl_proc(&egl->procs.eglCreatePlatformWindowSurfaceEXT,
"eglCreatePlatformWindowSurfaceEXT");
if (check_egl_ext(exts_str, "EGL_KHR_debug")) {
load_egl_proc(&egl->procs.eglDebugMessageControlKHR,
"eglDebugMessageControlKHR");
static const EGLAttrib debug_attribs[] = {
EGL_DEBUG_MSG_CRITICAL_KHR, EGL_TRUE,
EGL_DEBUG_MSG_ERROR_KHR, EGL_TRUE,
EGL_DEBUG_MSG_WARN_KHR, EGL_TRUE,
EGL_DEBUG_MSG_INFO_KHR, EGL_TRUE,
EGL_NONE,
};
egl->procs.eglDebugMessageControlKHR(egl_log, debug_attribs);
}
if (eglBindAPI(EGL_OPENGL_ES_API) == EGL_FALSE) {
wlr_log(WLR_ERROR, "Failed to bind to the OpenGL ES API");
goto error;
}
egl->display = egl->procs.eglGetPlatformDisplayEXT(platform,
remote_display, NULL);
if (egl->display == EGL_NO_DISPLAY) {
wlr_log(WLR_ERROR, "Failed to create EGL display");
goto error;
}
egl->platform = platform;
EGLint major, minor;
if (eglInitialize(egl->display, &major, &minor) == EGL_FALSE) {
wlr_log(WLR_ERROR, "Failed to initialize EGL");
goto error;
}
exts_str = eglQueryString(egl->display, EGL_EXTENSIONS);
if (exts_str == NULL) {
wlr_log(WLR_ERROR, "Failed to query EGL extensions");
return false;
}
if (check_egl_ext(exts_str, "EGL_KHR_image_base")) {
egl->exts.image_base_khr = true;
load_egl_proc(&egl->procs.eglCreateImageKHR, "eglCreateImageKHR");
load_egl_proc(&egl->procs.eglDestroyImageKHR, "eglDestroyImageKHR");
}
egl->exts.buffer_age_ext =
check_egl_ext(exts_str, "EGL_EXT_buffer_age");
if (check_egl_ext(exts_str, "EGL_KHR_swap_buffers_with_damage")) {
egl->exts.swap_buffers_with_damage = true;
load_egl_proc(&egl->procs.eglSwapBuffersWithDamage,
"eglSwapBuffersWithDamageKHR");
} else if (check_egl_ext(exts_str, "EGL_EXT_swap_buffers_with_damage")) {
egl->exts.swap_buffers_with_damage = true;
load_egl_proc(&egl->procs.eglSwapBuffersWithDamage,
"eglSwapBuffersWithDamageEXT");
}
egl->exts.image_dmabuf_import_ext =
check_egl_ext(exts_str, "EGL_EXT_image_dma_buf_import");
if (check_egl_ext(exts_str, "EGL_EXT_image_dma_buf_import_modifiers")) {
egl->exts.image_dmabuf_import_modifiers_ext = true;
load_egl_proc(&egl->procs.eglQueryDmaBufFormatsEXT,
"eglQueryDmaBufFormatsEXT");
load_egl_proc(&egl->procs.eglQueryDmaBufModifiersEXT,
"eglQueryDmaBufModifiersEXT");
}
if (check_egl_ext(exts_str, "EGL_MESA_image_dma_buf_export")) {
egl->exts.image_dma_buf_export_mesa = true;
load_egl_proc(&egl->procs.eglExportDMABUFImageQueryMESA,
"eglExportDMABUFImageQueryMESA");
load_egl_proc(&egl->procs.eglExportDMABUFImageMESA,
"eglExportDMABUFImageMESA");
}
if (check_egl_ext(exts_str, "EGL_WL_bind_wayland_display")) {
egl->exts.bind_wayland_display_wl = true;
load_egl_proc(&egl->procs.eglBindWaylandDisplayWL,
"eglBindWaylandDisplayWL");
load_egl_proc(&egl->procs.eglUnbindWaylandDisplayWL,
"eglUnbindWaylandDisplayWL");
load_egl_proc(&egl->procs.eglQueryWaylandBufferWL,
"eglQueryWaylandBufferWL");
}
if (!egl_get_config(egl->display, config_attribs, &egl->config, visual_id)) {
wlr_log(WLR_ERROR, "Failed to get EGL config");
goto error;
}
wlr_log(WLR_INFO, "Using EGL %d.%d", (int)major, (int)minor);
wlr_log(WLR_INFO, "Supported EGL extensions: %s", exts_str);
wlr_log(WLR_INFO, "EGL vendor: %s", eglQueryString(egl->display, EGL_VENDOR));
init_dmabuf_formats(egl);
bool ext_context_priority =
check_egl_ext(exts_str, "EGL_IMG_context_priority");
size_t atti = 0;
EGLint attribs[5];
attribs[atti++] = EGL_CONTEXT_CLIENT_VERSION;
attribs[atti++] = 2;
// On DRM, request a high priority context if possible
bool request_high_priority = ext_context_priority &&
platform == EGL_PLATFORM_GBM_MESA;
// Try to reschedule all of our rendering to be completed first. If it
// fails, it will fallback to the default priority (MEDIUM).
if (request_high_priority) {
attribs[atti++] = EGL_CONTEXT_PRIORITY_LEVEL_IMG;
attribs[atti++] = EGL_CONTEXT_PRIORITY_HIGH_IMG;
}
attribs[atti++] = EGL_NONE;
assert(atti <= sizeof(attribs)/sizeof(attribs[0]));
egl->context = eglCreateContext(egl->display, egl->config,
EGL_NO_CONTEXT, attribs);
if (egl->context == EGL_NO_CONTEXT) {
wlr_log(WLR_ERROR, "Failed to create EGL context");
goto error;
}
if (request_high_priority) {
EGLint priority = EGL_CONTEXT_PRIORITY_MEDIUM_IMG;
eglQueryContext(egl->display, egl->context,
EGL_CONTEXT_PRIORITY_LEVEL_IMG, &priority);
if (priority != EGL_CONTEXT_PRIORITY_HIGH_IMG) {
wlr_log(WLR_INFO, "Failed to obtain a high priority context");
} else {
wlr_log(WLR_DEBUG, "Obtained high priority context");
}
}
if (!eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
egl->context)) {
wlr_log(WLR_ERROR, "Failed to make EGL context current");
goto error;
}
return true;
error:
eglMakeCurrent(EGL_NO_DISPLAY, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (egl->display) {
eglTerminate(egl->display);
}
eglReleaseThread();
return false;
}
void wlr_egl_finish(struct wlr_egl *egl) {
if (egl == NULL) {
return;
}
wlr_drm_format_set_finish(&egl->dmabuf_formats);
eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (egl->wl_display) {
assert(egl->exts.bind_wayland_display_wl);
egl->procs.eglUnbindWaylandDisplayWL(egl->display, egl->wl_display);
}
eglDestroyContext(egl->display, egl->context);
eglTerminate(egl->display);
eglReleaseThread();
}
bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
if (!egl->exts.bind_wayland_display_wl) {
return false;
}
if (egl->procs.eglBindWaylandDisplayWL(egl->display, local_display)) {
egl->wl_display = local_display;
return true;
}
return false;
}
bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImage image) {
if (!egl->exts.image_base_khr) {
return false;
}
if (!image) {
return true;
}
return egl->procs.eglDestroyImageKHR(egl->display, image);
}
EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) {
assert(egl->procs.eglCreatePlatformWindowSurfaceEXT);
EGLSurface surf = egl->procs.eglCreatePlatformWindowSurfaceEXT(
egl->display, egl->config, window, NULL);
if (surf == EGL_NO_SURFACE) {
wlr_log(WLR_ERROR, "Failed to create EGL surface");
return EGL_NO_SURFACE;
}
return surf;
}
static int egl_get_buffer_age(struct wlr_egl *egl, EGLSurface surface) {
if (!egl->exts.buffer_age_ext) {
return -1;
}
EGLint buffer_age;
EGLBoolean ok = eglQuerySurface(egl->display, surface,
EGL_BUFFER_AGE_EXT, &buffer_age);
if (!ok) {
wlr_log(WLR_ERROR, "Failed to get EGL surface buffer age");
return -1;
}
return buffer_age;
}
bool wlr_egl_make_current(struct wlr_egl *egl, EGLSurface surface,
int *buffer_age) {
if (!eglMakeCurrent(egl->display, surface, surface, egl->context)) {
wlr_log(WLR_ERROR, "eglMakeCurrent failed");
return false;
}
if (buffer_age != NULL) {
*buffer_age = egl_get_buffer_age(egl, surface);
}
return true;
}
bool wlr_egl_unset_current(struct wlr_egl *egl) {
if (!eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT)) {
wlr_log(WLR_ERROR, "eglMakeCurrent failed");
return false;
}
return true;
}
bool wlr_egl_is_current(struct wlr_egl *egl) {
return eglGetCurrentContext() == egl->context;
}
bool wlr_egl_swap_buffers(struct wlr_egl *egl, EGLSurface surface,
pixman_region32_t *damage) {
// Never block when swapping buffers on Wayland
if (egl->platform == EGL_PLATFORM_WAYLAND_EXT) {
eglSwapInterval(egl->display, 0);
}
EGLBoolean ret;
if (damage != NULL && egl->exts.swap_buffers_with_damage) {
EGLint width = 0, height = 0;
eglQuerySurface(egl->display, surface, EGL_WIDTH, &width);
eglQuerySurface(egl->display, surface, EGL_HEIGHT, &height);
pixman_region32_t flipped_damage;
pixman_region32_init(&flipped_damage);
wlr_region_transform(&flipped_damage, damage,
WL_OUTPUT_TRANSFORM_FLIPPED_180, width, height);
int nrects;
pixman_box32_t *rects =
pixman_region32_rectangles(&flipped_damage, &nrects);
EGLint egl_damage[4 * nrects + 1];
for (int i = 0; i < nrects; ++i) {
egl_damage[4*i] = rects[i].x1;
egl_damage[4*i + 1] = rects[i].y1;
egl_damage[4*i + 2] = rects[i].x2 - rects[i].x1;
egl_damage[4*i + 3] = rects[i].y2 - rects[i].y1;
}
pixman_region32_fini(&flipped_damage);
if (nrects == 0) {
// Swapping with no rects is the same as swapping with the entire
// surface damaged. To swap with no damage, we set the damage region
// to a single empty rectangle.
nrects = 1;
memset(egl_damage, 0, sizeof(egl_damage));
}
ret = egl->procs.eglSwapBuffersWithDamage(egl->display, surface,
egl_damage, nrects);
} else {
ret = eglSwapBuffers(egl->display, surface);
}
if (!ret) {
wlr_log(WLR_ERROR, "eglSwapBuffers failed");
return false;
}
wlr_egl_unset_current(egl);
return true;
}
EGLImageKHR wlr_egl_create_image_from_wl_drm(struct wlr_egl *egl,
struct wl_resource *data, EGLint *fmt, int *width, int *height,
bool *inverted_y) {
if (!egl->exts.bind_wayland_display_wl || !egl->exts.image_base_khr) {
return NULL;
}
if (!egl->procs.eglQueryWaylandBufferWL(egl->display, data,
EGL_TEXTURE_FORMAT, fmt)) {
return NULL;
}
egl->procs.eglQueryWaylandBufferWL(egl->display, data, EGL_WIDTH, width);
egl->procs.eglQueryWaylandBufferWL(egl->display, data, EGL_HEIGHT, height);
EGLint _inverted_y;
if (egl->procs.eglQueryWaylandBufferWL(egl->display, data,
EGL_WAYLAND_Y_INVERTED_WL, &_inverted_y)) {
*inverted_y = !!_inverted_y;
} else {
*inverted_y = false;
}
const EGLint attribs[] = {
EGL_WAYLAND_PLANE_WL, 0,
EGL_NONE,
};
return egl->procs.eglCreateImageKHR(egl->display, egl->context,
EGL_WAYLAND_BUFFER_WL, data, attribs);
}
EGLImageKHR wlr_egl_create_image_from_dmabuf(struct wlr_egl *egl,
struct wlr_dmabuf_attributes *attributes) {
if (!egl->exts.image_base_khr || !egl->exts.image_dmabuf_import_ext) {
wlr_log(WLR_ERROR, "dmabuf import extension not present");
return NULL;
}
bool has_modifier = false;
// we assume the same way we assumed formats without the import_modifiers
// extension that mod_linear is supported. The special mod mod_invalid
// is sometimes used to signal modifier unawareness which is what we
// have here
if (attributes->modifier != DRM_FORMAT_MOD_INVALID &&
attributes->modifier != DRM_FORMAT_MOD_LINEAR) {
if (!egl->exts.image_dmabuf_import_modifiers_ext) {
wlr_log(WLR_ERROR, "dmabuf modifiers extension not present");
return NULL;
}
has_modifier = true;
}
unsigned int atti = 0;
EGLint attribs[50];
attribs[atti++] = EGL_WIDTH;
attribs[atti++] = attributes->width;
attribs[atti++] = EGL_HEIGHT;
attribs[atti++] = attributes->height;
attribs[atti++] = EGL_LINUX_DRM_FOURCC_EXT;
attribs[atti++] = attributes->format;
struct {
EGLint fd;
EGLint offset;
EGLint pitch;
EGLint mod_lo;
EGLint mod_hi;
} attr_names[WLR_DMABUF_MAX_PLANES] = {
{
EGL_DMA_BUF_PLANE0_FD_EXT,
EGL_DMA_BUF_PLANE0_OFFSET_EXT,
EGL_DMA_BUF_PLANE0_PITCH_EXT,
EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT,
EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT
}, {
EGL_DMA_BUF_PLANE1_FD_EXT,
EGL_DMA_BUF_PLANE1_OFFSET_EXT,
EGL_DMA_BUF_PLANE1_PITCH_EXT,
EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT,
EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT
}, {
EGL_DMA_BUF_PLANE2_FD_EXT,
EGL_DMA_BUF_PLANE2_OFFSET_EXT,
EGL_DMA_BUF_PLANE2_PITCH_EXT,
EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT,
EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT
}, {
EGL_DMA_BUF_PLANE3_FD_EXT,
EGL_DMA_BUF_PLANE3_OFFSET_EXT,
EGL_DMA_BUF_PLANE3_PITCH_EXT,
EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT,
EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT
}
};
for (int i=0; i < attributes->n_planes; i++) {
attribs[atti++] = attr_names[i].fd;
attribs[atti++] = attributes->fd[i];
attribs[atti++] = attr_names[i].offset;
attribs[atti++] = attributes->offset[i];
attribs[atti++] = attr_names[i].pitch;
attribs[atti++] = attributes->stride[i];
if (has_modifier) {
attribs[atti++] = attr_names[i].mod_lo;
attribs[atti++] = attributes->modifier & 0xFFFFFFFF;
attribs[atti++] = attr_names[i].mod_hi;
attribs[atti++] = attributes->modifier >> 32;
}
}
attribs[atti++] = EGL_NONE;
assert(atti < sizeof(attribs)/sizeof(attribs[0]));
return egl->procs.eglCreateImageKHR(egl->display, EGL_NO_CONTEXT,
EGL_LINUX_DMA_BUF_EXT, NULL, attribs);
}
static int get_egl_dmabuf_formats(struct wlr_egl *egl, int **formats) {
if (!egl->exts.image_dmabuf_import_ext) {
wlr_log(WLR_DEBUG, "DMA-BUF import extension not present");
return -1;
}
// when we only have the image_dmabuf_import extension we can't query
// which formats are supported. These two are on almost always
// supported; it's the intended way to just try to create buffers.
// Just a guess but better than not supporting dmabufs at all,
// given that the modifiers extension isn't supported everywhere.
if (!egl->exts.image_dmabuf_import_modifiers_ext) {
static const int fallback_formats[] = {
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB8888,
};
static unsigned num = sizeof(fallback_formats) /
sizeof(fallback_formats[0]);
*formats = calloc(num, sizeof(int));
if (!*formats) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return -1;
}
memcpy(*formats, fallback_formats, num * sizeof(**formats));
return num;
}
EGLint num;
if (!egl->procs.eglQueryDmaBufFormatsEXT(egl->display, 0, NULL, &num)) {
wlr_log(WLR_ERROR, "Failed to query number of dmabuf formats");
return -1;
}
*formats = calloc(num, sizeof(int));
if (*formats == NULL) {
wlr_log(WLR_ERROR, "Allocation failed: %s", strerror(errno));
return -1;
}
if (!egl->procs.eglQueryDmaBufFormatsEXT(egl->display, num, *formats, &num)) {
wlr_log(WLR_ERROR, "Failed to query dmabuf format");
free(*formats);
return -1;
}
return num;
}
static int get_egl_dmabuf_modifiers(struct wlr_egl *egl, int format,
uint64_t **modifiers) {
if (!egl->exts.image_dmabuf_import_ext) {
wlr_log(WLR_DEBUG, "DMA-BUF extension not present");
return -1;
}
if (!egl->exts.image_dmabuf_import_modifiers_ext) {
*modifiers = NULL;
return 0;
}
EGLint num;
if (!egl->procs.eglQueryDmaBufModifiersEXT(egl->display, format, 0,
NULL, NULL, &num)) {
wlr_log(WLR_ERROR, "Failed to query dmabuf number of modifiers");
return -1;
}
if (num == 0) {
*modifiers = NULL;
return 0;
}
*modifiers = calloc(num, sizeof(uint64_t));
if (*modifiers == NULL) {
wlr_log(WLR_ERROR, "Allocation failed: %s", strerror(errno));
return -1;
}
if (!egl->procs.eglQueryDmaBufModifiersEXT(egl->display, format, num,
*modifiers, NULL, &num)) {
wlr_log(WLR_ERROR, "Failed to query dmabuf modifiers");
free(*modifiers);
return -1;
}
return num;
}
const struct wlr_drm_format_set *wlr_egl_get_dmabuf_formats(struct wlr_egl *egl) {
return &egl->dmabuf_formats;
}
bool wlr_egl_export_image_to_dmabuf(struct wlr_egl *egl, EGLImageKHR image,
int32_t width, int32_t height, uint32_t flags,
struct wlr_dmabuf_attributes *attribs) {
memset(attribs, 0, sizeof(struct wlr_dmabuf_attributes));
if (!egl->exts.image_dma_buf_export_mesa) {
return false;
}
// Only one set of modifiers is returned for all planes
if (!egl->procs.eglExportDMABUFImageQueryMESA(egl->display, image,
(int *)&attribs->format, &attribs->n_planes, &attribs->modifier)) {
return false;
}
if (attribs->n_planes > WLR_DMABUF_MAX_PLANES) {
wlr_log(WLR_ERROR, "EGL returned %d planes, but only %d are supported",
attribs->n_planes, WLR_DMABUF_MAX_PLANES);
return false;
}
if (!egl->procs.eglExportDMABUFImageMESA(egl->display, image, attribs->fd,
(EGLint *)attribs->stride, (EGLint *)attribs->offset)) {
return false;
}
attribs->width = width;
attribs->height = height;
attribs->flags = flags;
return true;
}
bool wlr_egl_destroy_surface(struct wlr_egl *egl, EGLSurface surface) {
if (!surface) {
return true;
}
if (eglGetCurrentContext() == egl->context &&
eglGetCurrentSurface(EGL_DRAW) == surface) {
// Reset the current EGL surface in case it's the one we're destroying,
// otherwise the next wlr_egl_make_current call will result in a
// use-after-free.
wlr_egl_make_current(egl, EGL_NO_SURFACE, NULL);
}
return eglDestroySurface(egl->display, surface);
}