73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <GLES2/gl2.h>
|
|
#include <wayland-util.h>
|
|
#include <wayland-server-protocol.h>
|
|
#include <wlr/render.h>
|
|
#include <wlr/render/interface.h>
|
|
#include <wlr/render/matrix.h>
|
|
#include <wlr/util/log.h>
|
|
#include "render/gles2.h"
|
|
|
|
static bool gles2_surface_attach_pixels(struct wlr_surface_state *surface,
|
|
enum wl_shm_format format, int width, int height,
|
|
const unsigned char *pixels) {
|
|
assert(surface);
|
|
const struct pixel_format *fmt = gl_format_for_wl_format(format);
|
|
if (!fmt || !fmt->gl_format) {
|
|
wlr_log(L_ERROR, "No supported pixel format for this surface");
|
|
return false;
|
|
}
|
|
surface->wlr_surface->width = width;
|
|
surface->wlr_surface->height = height;
|
|
surface->wlr_surface->format = format;
|
|
surface->pixel_format = fmt;
|
|
GL_CALL(glGenTextures(1, &surface->tex_id));
|
|
GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->tex_id));
|
|
GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, fmt->gl_format, width, height, 0,
|
|
fmt->gl_format, fmt->gl_type, pixels));
|
|
surface->wlr_surface->valid = true;
|
|
return true;
|
|
}
|
|
|
|
static void gles2_surface_get_matrix(struct wlr_surface_state *surface,
|
|
float (*matrix)[16], const float (*projection)[16], int x, int y) {
|
|
struct wlr_surface *_surface = surface->wlr_surface;
|
|
float world[16];
|
|
wlr_matrix_identity(matrix);
|
|
wlr_matrix_translate(&world, x, y, 0);
|
|
wlr_matrix_mul(matrix, &world, matrix);
|
|
wlr_matrix_scale(&world, _surface->width, _surface->height, 1);
|
|
wlr_matrix_mul(matrix, &world, matrix);
|
|
wlr_matrix_mul(projection, matrix, matrix);
|
|
}
|
|
|
|
static void gles2_surface_bind(struct wlr_surface_state *surface) {
|
|
GL_CALL(glActiveTexture(GL_TEXTURE0 + 1));
|
|
GL_CALL(glBindTexture(GL_TEXTURE_2D, surface->tex_id));
|
|
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
|
|
GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
|
|
GL_CALL(glUseProgram(*surface->pixel_format->shader));
|
|
}
|
|
|
|
static void gles2_surface_destroy(struct wlr_surface_state *surface) {
|
|
GL_CALL(glDeleteTextures(1, &surface->tex_id));
|
|
free(surface);
|
|
}
|
|
|
|
static struct wlr_surface_impl wlr_surface_impl = {
|
|
.attach_pixels = gles2_surface_attach_pixels,
|
|
// .attach_shm = TODO
|
|
.get_matrix = gles2_surface_get_matrix,
|
|
.bind = gles2_surface_bind,
|
|
.destroy = gles2_surface_destroy,
|
|
};
|
|
|
|
struct wlr_surface *gles2_surface_init() {
|
|
struct wlr_surface_state *state = calloc(sizeof(struct wlr_surface_state), 1);
|
|
struct wlr_surface *surface = wlr_surface_init(state, &wlr_surface_impl);
|
|
state->wlr_surface = surface;
|
|
return surface;
|
|
}
|