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#include "gl.h"
#include "surface.h"
#undef MAX
#define MAX(a, b) ((a) > (b) ? (a) : (b))
void surface_initialise(
struct surface *surface,
struct wl_display *wl_display,
struct image *texture)
{
egl_create_window(
&surface->egl,
surface->wl_surface,
surface->width,
surface->height);
egl_create_context(&surface->egl, wl_display);
gl_initialise(&surface->gl, texture);
}
void surface_destroy(struct surface *surface)
{
egl_make_current(&surface->egl);
gl_destroy(&surface->gl);
egl_destroy(&surface->egl);
}
void surface_draw(
struct surface *surface,
struct color *color,
struct image *texture)
{
wl_egl_window_resize(
surface->egl.window,
surface->width,
surface->height,
0,
0);
egl_make_current(&surface->egl);
gl_clear(&surface->gl, color);
if (texture != NULL && texture->buffer != NULL) {
double scale = MAX(
(double)surface->width / texture->width,
(double)surface->height / texture->height
);
uint32_t width = (uint32_t)(scale * texture->width);
uint32_t height = (uint32_t)(scale * texture->height);
int32_t x = -((int32_t)width - (int32_t)surface->width) / 2;
int32_t y = -((int32_t)height - (int32_t)surface->height) / 2;
gl_draw_texture(&surface->gl, texture, x, y, width, height);
}
wl_surface_damage_buffer(surface->wl_surface, 0, 0, INT32_MAX, INT32_MAX);
egl_swap_buffers(&surface->egl);
}
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