wlroots-hyprland/render/wlr_renderer.c

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#include <assert.h>
#include <stdbool.h>
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#include <stdlib.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_matrix.h>
#include <wlr/render/gles2.h>
#include <wlr/util/log.h>
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#include "util/signal.h"
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void wlr_renderer_init(struct wlr_renderer *renderer,
const struct wlr_renderer_impl *impl) {
assert(impl->begin);
assert(impl->clear);
assert(impl->scissor);
assert(impl->render_texture_with_matrix);
assert(impl->render_quad_with_matrix);
assert(impl->render_ellipse_with_matrix);
assert(impl->formats);
assert(impl->format_supported);
assert(impl->texture_from_pixels);
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renderer->impl = impl;
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wl_signal_init(&renderer->events.destroy);
}
void wlr_renderer_destroy(struct wlr_renderer *r) {
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wlr_signal_emit_safe(&r->events.destroy, r);
if (r && r->impl && r->impl->destroy) {
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r->impl->destroy(r);
} else {
free(r);
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}
}
void wlr_renderer_begin(struct wlr_renderer *r, int width, int height) {
r->impl->begin(r, width, height);
}
void wlr_renderer_end(struct wlr_renderer *r) {
if (r->impl->end) {
r->impl->end(r);
}
}
void wlr_renderer_clear(struct wlr_renderer *r, const float color[static 4]) {
r->impl->clear(r, color);
}
void wlr_renderer_scissor(struct wlr_renderer *r, struct wlr_box *box) {
r->impl->scissor(r, box);
}
bool wlr_render_texture(struct wlr_renderer *r, struct wlr_texture *texture,
const float projection[static 9], int x, int y, float alpha) {
struct wlr_box box = { .x = x, .y = y };
wlr_texture_get_size(texture, &box.width, &box.height);
float matrix[9];
wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
return wlr_render_texture_with_matrix(r, texture, matrix, alpha);
}
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bool wlr_render_texture_with_matrix(struct wlr_renderer *r,
struct wlr_texture *texture, const float matrix[static 9],
float alpha) {
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return r->impl->render_texture_with_matrix(r, texture, matrix, alpha);
}
void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
wlr_render_quad_with_matrix(r, color, matrix);
}
void wlr_render_quad_with_matrix(struct wlr_renderer *r,
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const float color[static 4], const float matrix[static 9]) {
r->impl->render_quad_with_matrix(r, color, matrix);
}
void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box,
const float color[static 4], const float projection[static 9]) {
float matrix[9];
wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
projection);
wlr_render_ellipse_with_matrix(r, color, matrix);
}
void wlr_render_ellipse_with_matrix(struct wlr_renderer *r,
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const float color[static 4], const float matrix[static 9]) {
r->impl->render_ellipse_with_matrix(r, color, matrix);
}
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const enum wl_shm_format *wlr_renderer_get_formats(
struct wlr_renderer *r, size_t *len) {
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return r->impl->formats(r, len);
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}
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bool wlr_renderer_resource_is_wl_drm_buffer(struct wlr_renderer *r,
struct wl_resource *resource) {
if (!r->impl->resource_is_wl_drm_buffer) {
return false;
}
return r->impl->resource_is_wl_drm_buffer(r, resource);
}
void wlr_renderer_wl_drm_buffer_get_size(struct wlr_renderer *r,
struct wl_resource *buffer, int *width, int *height) {
if (!r->impl->wl_drm_buffer_get_size) {
return;
}
return r->impl->wl_drm_buffer_get_size(r, buffer, width, height);
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}
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int wlr_renderer_get_dmabuf_formats(struct wlr_renderer *r,
int **formats) {
if (!r->impl->get_dmabuf_formats) {
return -1;
}
return r->impl->get_dmabuf_formats(r, formats);
}
int wlr_renderer_get_dmabuf_modifiers(struct wlr_renderer *r, int format,
uint64_t **modifiers) {
if (!r->impl->get_dmabuf_modifiers) {
return -1;
}
return r->impl->get_dmabuf_modifiers(r, format, modifiers);
}
bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format fmt,
uint32_t stride, uint32_t width, uint32_t height,
uint32_t src_x, uint32_t src_y, uint32_t dst_x, uint32_t dst_y,
void *data) {
if (!r->impl->read_pixels) {
return false;
}
return r->impl->read_pixels(r, fmt, stride, width, height, src_x, src_y,
dst_x, dst_y, data);
}
bool wlr_renderer_format_supported(struct wlr_renderer *r,
enum wl_shm_format fmt) {
return r->impl->format_supported(r, fmt);
}
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void wlr_renderer_init_wl_display(struct wlr_renderer *r,
struct wl_display *wl_display) {
if (wl_display_init_shm(wl_display)) {
wlr_log(L_ERROR, "Failed to initialize shm");
return;
}
size_t len;
const enum wl_shm_format *formats = wlr_renderer_get_formats(r, &len);
if (formats == NULL) {
wlr_log(L_ERROR, "Failed to initialize shm: cannot get formats");
return;
}
for (size_t i = 0; i < len; ++i) {
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// These formats are already added by default
if (formats[i] != WL_SHM_FORMAT_ARGB8888 &&
formats[i] != WL_SHM_FORMAT_XRGB8888) {
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wl_display_add_shm_format(wl_display, formats[i]);
}
}
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if (r->impl->init_wl_display) {
r->impl->init_wl_display(r, wl_display);
}
}
struct wlr_renderer *wlr_renderer_autocreate(struct wlr_egl *egl,
EGLenum platform, void *remote_display, EGLint *config_attribs,
EGLint visual_id) {
if (!wlr_egl_init(egl, platform, remote_display, config_attribs, visual_id)) {
wlr_log(L_ERROR, "Could not initialize EGL");
return NULL;
}
struct wlr_renderer *renderer = wlr_gles2_renderer_create(egl);
if (!renderer) {
wlr_egl_finish(egl);
}
return renderer;
}