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Merge branch 'cleanup-cairo' into 'develop'

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Clean up cairo error handling

See merge request pwmt/zathura!77
This commit is contained in:
Sebastian Ramacher 2023-07-27 18:33:50 +02:00
commit a1b93ff180
3 changed files with 15 additions and 25 deletions
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21
zathura/page-widget.c
View file

@ -733,23 +733,24 @@ draw_thumbnail_image(cairo_surface_t* surface, size_t max_size)
const unsigned int unscaled_height = height / device.y;
/* create thumbnail surface, taking width and height as _unscaled_ device units */
cairo_surface_t *thumbnail;
cairo_surface_t* thumbnail;
thumbnail = cairo_surface_create_similar(surface, CAIRO_CONTENT_COLOR, unscaled_width, unscaled_height);
if (thumbnail == NULL) {
if (cairo_surface_status(thumbnail) != CAIRO_STATUS_SUCCESS) {
return NULL;
}
cairo_t *cr = cairo_create(thumbnail);
if (cr == NULL) {
cairo_t* cairo = cairo_create(thumbnail);
if (cairo_status(cairo) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(thumbnail);
return NULL;
}
cairo_scale(cr, scale, scale);
cairo_set_source_surface(cr, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
cairo_paint(cr);
cairo_destroy(cr);
cairo_scale(cairo, scale, scale);
cairo_set_source_surface(cairo, surface, 0, 0);
cairo_pattern_set_filter(cairo_get_source(cairo), CAIRO_FILTER_BILINEAR);
cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
cairo_paint(cairo);
cairo_destroy(cairo);
return thumbnail;
}

10
zathura/print.c
View file

@ -52,16 +52,12 @@ draw_page_image(cairo_t* cairo, GtkPrintContext* context, zathura_t* zathura,
const double page_height = zathura_page_get_height(page) * scale_height;
const double page_width = zathura_page_get_width(page) * scale_width;
cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, page_width, page_height);
if (surface == NULL) {
return false;
}
if (cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(surface);
return false;
}
cairo_t* temp_cairo = cairo_create(surface);
if (cairo == NULL) {
if (cairo_status(temp_cairo) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(surface);
return false;
}
@ -113,9 +109,9 @@ cb_print_draw_page(GtkPrintOperation* print_operation, GtkPrintContext*
g_free(tmp);
/* Get the page and cairo handle. */
cairo_t* cairo = gtk_print_context_get_cairo_context(context);
zathura_page_t* page = zathura_document_get_page(zathura->document, page_number);
if (cairo == NULL || page == NULL) {
cairo_t* cairo = gtk_print_context_get_cairo_context(context);
if (cairo_status(cairo) != CAIRO_STATUS_SUCCESS || page == NULL) {
gtk_print_operation_cancel(print_operation);
return;
}

9
zathura/render.c
View file

@ -767,7 +767,7 @@ static bool
render_to_cairo_surface(cairo_surface_t* surface, zathura_page_t* page, ZathuraRenderer* renderer, double real_scale)
{
cairo_t* cairo = cairo_create(surface);
if (cairo == NULL) {
if (cairo_status(cairo) != CAIRO_STATUS_SUCCESS) {
return false;
}
@ -775,7 +775,6 @@ render_to_cairo_surface(cairo_surface_t* surface, zathura_page_t* page, ZathuraR
cairo_set_source_rgb(cairo, 1, 1, 1);
cairo_paint(cairo);
cairo_restore(cairo);
cairo_save(cairo);
/* apply scale (used by e.g. Poppler as pixels per point) */
if (fabs(real_scale - 1.0f) > FLT_EPSILON) {
@ -785,7 +784,6 @@ render_to_cairo_surface(cairo_surface_t* surface, zathura_page_t* page, ZathuraR
zathura_renderer_lock(renderer);
const int err = zathura_page_render(page, cairo, false);
zathura_renderer_unlock(renderer);
cairo_restore(cairo);
cairo_destroy(cairo);
return err == ZATHURA_ERROR_OK;
@ -833,11 +831,6 @@ render(render_job_t* job, ZathuraRenderRequest* request, ZathuraRenderer* render
}
cairo_surface_t* surface = cairo_image_surface_create(format,
page_width, page_height);
if (surface == NULL) {
return false;
}
if (request_priv->render_plain == false) {
cairo_surface_set_device_scale(surface, device_factors.x, device_factors.y);
}