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#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_texture.h>
#include "types/wlr_buffer.h"
void wlr_texture_init(struct wlr_texture *texture,
const struct wlr_texture_impl *impl, uint32_t width, uint32_t height) {
memset(texture, 0, sizeof(*texture));
texture->impl = impl;
texture->width = width;
texture->height = height;
}
void wlr_texture_destroy(struct wlr_texture *texture) {
if (texture && texture->impl && texture->impl->destroy) {
texture->impl->destroy(texture);
} else {
free(texture);
}
}
struct wlr_texture *wlr_texture_from_pixels(struct wlr_renderer *renderer,
uint32_t fmt, uint32_t stride, uint32_t width, uint32_t height,
const void *data) {
assert(width > 0);
assert(height > 0);
assert(stride > 0);
assert(data);
struct wlr_readonly_data_buffer *buffer =
readonly_data_buffer_create(fmt, stride, width, height, data);
if (buffer == NULL) {
return NULL;
}
struct wlr_texture *texture =
wlr_texture_from_buffer(renderer, &buffer->base);
// By this point, the renderer should have locked the buffer if it still
// needs to access it in the future.
readonly_data_buffer_drop(buffer);
return texture;
}
struct wlr_texture *wlr_texture_from_dmabuf(struct wlr_renderer *renderer,
struct wlr_dmabuf_attributes *attribs) {
struct wlr_dmabuf_buffer *buffer = dmabuf_buffer_create(attribs);
if (buffer == NULL) {
return NULL;
}
struct wlr_texture *texture =
wlr_texture_from_buffer(renderer, &buffer->base);
// By this point, the renderer should have locked the buffer if it still
// needs to access it in the future.
dmabuf_buffer_drop(buffer);
return texture;
}
struct wlr_texture *wlr_texture_from_buffer(struct wlr_renderer *renderer,
struct wlr_buffer *buffer) {
if (!renderer->impl->texture_from_buffer) {
return NULL;
}
return renderer->impl->texture_from_buffer(renderer, buffer);
}
bool wlr_texture_update_from_buffer(struct wlr_texture *texture,
struct wlr_buffer *buffer, pixman_region32_t *damage) {
if (!texture->impl->update_from_buffer) {
return false;
}
if (texture->width != (uint32_t)buffer->width ||
texture->height != (uint32_t)buffer->height) {
return false;
}
const pixman_box32_t *extents = pixman_region32_extents(damage);
if (extents->x1 < 0 || extents->y1 < 0 || extents->x2 > buffer->width ||
extents->y2 > buffer->height) {
return false;
}
return texture->impl->update_from_buffer(texture, buffer, damage);
}
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