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wlr_texture: Introduce wlr_texture_read_pixels_options helpers
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2 changed files with 32 additions and 0 deletions
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@ -93,4 +93,10 @@ float wlr_render_texture_options_get_alpha(const struct wlr_render_texture_optio
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void wlr_render_rect_options_get_box(const struct wlr_render_rect_options *options,
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const struct wlr_buffer *buffer, struct wlr_box *box);
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void wlr_texture_read_pixels_options_get_src_box(
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const struct wlr_texture_read_pixels_options *options,
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const struct wlr_texture *texture, struct wlr_box *box);
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void *wlr_texture_read_pixel_options_get_data(
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const struct wlr_texture_read_pixels_options *options);
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#endif
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@ -4,6 +4,7 @@
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#include <string.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/wlr_texture.h>
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#include "render/pixel_format.h"
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#include "types/wlr_buffer.h"
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void wlr_texture_init(struct wlr_texture *texture, struct wlr_renderer *renderer,
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@ -26,6 +27,31 @@ void wlr_texture_destroy(struct wlr_texture *texture) {
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}
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}
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void wlr_texture_read_pixels_options_get_src_box(
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const struct wlr_texture_read_pixels_options *options,
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const struct wlr_texture *texture, struct wlr_box *box) {
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if (wlr_box_empty(&options->src_box)) {
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*box = (struct wlr_box){
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.x = 0,
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.y = 0,
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.width = texture->width,
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.height = texture->height,
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};
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return;
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}
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*box = options->src_box;
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}
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void *wlr_texture_read_pixel_options_get_data(
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const struct wlr_texture_read_pixels_options *options) {
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const struct wlr_pixel_format_info *fmt = drm_get_pixel_format_info(options->format);
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return (char *)options->data +
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pixel_format_info_min_stride(fmt, options->dst_x) +
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options->dst_y * options->stride;
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}
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bool wlr_texture_read_pixels(struct wlr_texture *texture,
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const struct wlr_texture_read_pixels_options *options) {
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if (!texture->impl->read_pixels) {
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