render/pixman: implement preferred_read_format
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0411dc0663
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30706b71fb
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@ -46,6 +46,7 @@ struct wlr_pixman_texture {
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};
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pixman_format_code_t get_pixman_format_from_drm(uint32_t fmt);
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uint32_t get_drm_format_from_pixman(pixman_format_code_t fmt);
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const uint32_t *get_pixman_drm_formats(size_t *len);
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#endif
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@ -49,6 +49,17 @@ pixman_format_code_t get_pixman_format_from_drm(uint32_t fmt) {
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return 0;
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}
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uint32_t get_drm_format_from_pixman(pixman_format_code_t fmt) {
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for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) {
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if (formats[i].pixman_format == fmt) {
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return formats[i].drm_format;
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}
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}
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wlr_log(WLR_ERROR, "pixman format 0x%"PRIX32" has no drm equivalent", fmt);
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return DRM_FORMAT_INVALID;
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}
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const uint32_t *get_pixman_drm_formats(size_t *len) {
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static uint32_t drm_formats[sizeof(formats) / sizeof(formats[0])];
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*len = sizeof(formats) / sizeof(formats[0]);
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@ -369,6 +369,17 @@ static void pixman_destroy(struct wlr_renderer *wlr_renderer) {
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free(renderer);
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}
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static uint32_t pixman_preferred_read_format(
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struct wlr_renderer *wlr_renderer) {
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struct wlr_pixman_renderer *renderer = get_renderer(wlr_renderer);
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struct wlr_pixman_buffer *buffer = renderer->current_buffer;
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pixman_format_code_t pixman_format = pixman_image_get_format(
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buffer->image);
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return get_drm_format_from_pixman(pixman_format);
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}
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static const struct wlr_renderer_impl renderer_impl = {
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.begin = pixman_begin,
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.clear = pixman_clear,
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@ -380,6 +391,7 @@ static const struct wlr_renderer_impl renderer_impl = {
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.texture_from_pixels = pixman_texture_from_pixels,
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.bind_buffer = pixman_bind_buffer,
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.destroy = pixman_destroy,
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.preferred_read_format = pixman_preferred_read_format,
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};
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struct wlr_renderer *wlr_pixman_renderer_create(void) {
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