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render/egl: add save_context parameter to wlr_egl_make_current()

Browse source 
Saving the old context and immediately making our own context
current is a common pattern. Let's make it easier to do.

No functional change, just refactoring.
This commit is contained in:
Simon Ser 2024-02-22 19:26:06 +01:00
parent 2521fba37c
commit d5556ec78f
4 changed files with 24 additions and 33 deletions
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6
include/render/egl.h
View file

@ -105,10 +105,10 @@ bool wlr_egl_restore_context(struct wlr_egl_context *context);
/**
* Make the EGL context current.
*
* Callers are expected to clear the current context when they are done by
* calling wlr_egl_unset_current().
* The old EGL context is saved. Callers are expected to clear the current
* context when they are done by calling wlr_egl_restore_context().
*/
bool wlr_egl_make_current(struct wlr_egl *egl);
bool wlr_egl_make_current(struct wlr_egl *egl, struct wlr_egl_context *save_context);
bool wlr_egl_unset_current(struct wlr_egl *egl);

6
render/egl.c
View file

@ -649,7 +649,11 @@ bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImage image) {
return egl->procs.eglDestroyImageKHR(egl->display, image);
}
bool wlr_egl_make_current(struct wlr_egl *egl) {
bool wlr_egl_make_current(struct wlr_egl *egl,
struct wlr_egl_context *save_context) {
if (save_context != NULL) {
wlr_egl_save_context(save_context);
}
if (!eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
egl->context)) {
wlr_log(WLR_ERROR, "eglMakeCurrent failed");

22
render/gles2/renderer.c
View file

@ -56,8 +56,7 @@ static void destroy_buffer(struct wlr_gles2_buffer *buffer) {
wlr_addon_finish(&buffer->addon);
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(buffer->renderer->egl);
wlr_egl_make_current(buffer->renderer->egl, &prev_ctx);
push_gles2_debug(buffer->renderer);
@ -208,7 +207,7 @@ struct wlr_egl *wlr_gles2_renderer_get_egl(struct wlr_renderer *wlr_renderer) {
static void gles2_destroy(struct wlr_renderer *wlr_renderer) {
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, NULL);
struct wlr_gles2_texture *tex, *tex_tmp;
wl_list_for_each_safe(tex, tex_tmp, &renderer->textures, link) {
@ -247,8 +246,7 @@ static struct wlr_render_pass *gles2_begin_buffer_pass(struct wlr_renderer *wlr_
struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer);
struct wlr_egl_context prev_ctx = {0};
wlr_egl_save_context(&prev_ctx);
if (!wlr_egl_make_current(renderer->egl)) {
if (!wlr_egl_make_current(renderer->egl, &prev_ctx)) {
return NULL;
}
@ -276,8 +274,7 @@ GLuint wlr_gles2_renderer_get_buffer_fbo(struct wlr_renderer *wlr_renderer,
GLuint fbo = 0;
struct wlr_egl_context prev_ctx = {0};
wlr_egl_save_context(&prev_ctx);
if (!wlr_egl_make_current(renderer->egl)) {
if (!wlr_egl_make_current(renderer->egl, &prev_ctx)) {
return 0;
}
@ -305,8 +302,7 @@ static struct wlr_render_timer *gles2_render_timer_create(struct wlr_renderer *w
timer->renderer = renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, &prev_ctx);
renderer->procs.glGenQueriesEXT(1, &timer->id);
wlr_egl_restore_context(&prev_ctx);
@ -318,8 +314,7 @@ static int gles2_get_render_time(struct wlr_render_timer *wlr_timer) {
struct wlr_gles2_renderer *renderer = timer->renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, &prev_ctx);
GLint64 disjoint;
renderer->procs.glGetInteger64vEXT(GL_GPU_DISJOINT_EXT, &disjoint);
@ -353,8 +348,7 @@ static void gles2_render_timer_destroy(struct wlr_render_timer *wlr_timer) {
struct wlr_gles2_renderer *renderer = timer->renderer;
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, &prev_ctx);
renderer->procs.glDeleteQueriesEXT(1, &timer->id);
wlr_egl_restore_context(&prev_ctx);
free(timer);
@ -521,7 +515,7 @@ struct wlr_renderer *wlr_gles2_renderer_create_with_drm_fd(int drm_fd) {
}
struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_egl *egl) {
if (!wlr_egl_make_current(egl)) {
if (!wlr_egl_make_current(egl, NULL)) {
return NULL;
}

23
render/gles2/texture.c
View file

@ -68,8 +68,7 @@ static bool gles2_texture_update_from_buffer(struct wlr_texture *wlr_texture,
}
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(texture->renderer->egl);
wlr_egl_make_current(texture->renderer->egl, &prev_ctx);
push_gles2_debug(texture->renderer);
@ -112,8 +111,7 @@ void gles2_texture_destroy(struct wlr_gles2_texture *texture) {
wlr_buffer_unlock(texture->buffer->buffer);
} else {
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(texture->renderer->egl);
wlr_egl_make_current(texture->renderer->egl, &prev_ctx);
push_gles2_debug(texture->renderer);
@ -196,9 +194,7 @@ static bool gles2_texture_read_pixels(struct wlr_texture *wlr_texture,
push_gles2_debug(texture->renderer);
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
if (!wlr_egl_make_current(texture->renderer->egl)) {
if (!wlr_egl_make_current(texture->renderer->egl, &prev_ctx)) {
return false;
}
@ -240,13 +236,12 @@ static uint32_t gles2_texture_preferred_read_format(struct wlr_texture *wlr_text
struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
push_gles2_debug(texture->renderer);
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
uint32_t fmt = DRM_FORMAT_INVALID;
if (!wlr_egl_make_current(texture->renderer->egl)) {
goto out;
struct wlr_egl_context prev_ctx;
if (!wlr_egl_make_current(texture->renderer->egl, &prev_ctx)) {
return fmt;
}
if (!gles2_texture_bind(texture)) {
@ -339,8 +334,7 @@ static struct wlr_texture *gles2_texture_from_pixels(
}
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, &prev_ctx);
push_gles2_debug(renderer);
@ -387,8 +381,7 @@ static struct wlr_texture *gles2_texture_from_dmabuf(
texture->has_alpha = pixel_format_has_alpha(attribs->format);
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
wlr_egl_make_current(renderer->egl, &prev_ctx);
push_gles2_debug(texture->renderer);
bool invalid;