From e8b187cc92b9b039dcbb6715665ee8ba5d065c6b Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Thu, 30 Nov 2023 17:47:11 +0100 Subject: render/gles2: save/restore context when creating/submitting a render pass This is useful for e.g. lazily blitting a texture for readback purposes while rendering. --- render/gles2/pass.c | 4 +++- render/gles2/renderer.c | 5 ++++- 2 files changed, 7 insertions(+), 2 deletions(-) (limited to 'render') diff --git a/render/gles2/pass.c b/render/gles2/pass.c index f8a0f3e8..4c9f9e28 100644 --- a/render/gles2/pass.c +++ b/render/gles2/pass.c @@ -41,6 +41,7 @@ static bool render_pass_submit(struct wlr_render_pass *wlr_pass) { glBindFramebuffer(GL_FRAMEBUFFER, 0); pop_gles2_debug(renderer); + wlr_egl_restore_context(&pass->prev_ctx); wlr_buffer_unlock(pass->buffer->buffer); free(pass); @@ -247,7 +248,7 @@ static const char *reset_status_str(GLenum status) { } struct wlr_gles2_render_pass *begin_gles2_buffer_pass(struct wlr_gles2_buffer *buffer, - struct wlr_gles2_render_timer *timer) { + struct wlr_egl_context *prev_ctx, struct wlr_gles2_render_timer *timer) { struct wlr_gles2_renderer *renderer = buffer->renderer; struct wlr_buffer *wlr_buffer = buffer->buffer; @@ -274,6 +275,7 @@ struct wlr_gles2_render_pass *begin_gles2_buffer_pass(struct wlr_gles2_buffer *b wlr_buffer_lock(wlr_buffer); pass->buffer = buffer; pass->timer = timer; + pass->prev_ctx = *prev_ctx; matrix_projection(pass->projection_matrix, wlr_buffer->width, wlr_buffer->height, WL_OUTPUT_TRANSFORM_FLIPPED_180); diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 327d197e..1b106af5 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -433,6 +433,9 @@ static void gles2_destroy(struct wlr_renderer *wlr_renderer) { static struct wlr_render_pass *gles2_begin_buffer_pass(struct wlr_renderer *wlr_renderer, struct wlr_buffer *wlr_buffer, const struct wlr_buffer_pass_options *options) { 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)) { return NULL; } @@ -448,7 +451,7 @@ static struct wlr_render_pass *gles2_begin_buffer_pass(struct wlr_renderer *wlr_ return NULL; } - struct wlr_gles2_render_pass *pass = begin_gles2_buffer_pass(buffer, timer); + struct wlr_gles2_render_pass *pass = begin_gles2_buffer_pass(buffer, &prev_ctx, timer); if (!pass) { return NULL; } -- cgit v1.2.3