void uterm_drm3d_deinit_shaders(struct uterm_video *video)
{
struct uterm_drm3d_video *v3d = uterm_drm_video_get_data(video);
if (v3d->sinit == 0)
return;
v3d->sinit = 0;
gl_tex_free(&v3d->tex, 1);
gl_shader_unref(v3d->blit_shader);
gl_shader_unref(v3d->blend_shader);
gl_shader_unref(v3d->fill_shader);
}
static void gltex_unset(struct kmscon_text *txt)
{
struct gltex *gt = txt->data;
int ret;
struct shl_dlist *iter;
struct atlas *atlas;
bool gl = true;
ret = uterm_display_use(txt->disp, NULL);
if (ret) {
gl = false;
log_warning("cannot activate OpenGL-CTX during destruction");
}
shl_hashtable_free(gt->bold_glyphs);
shl_hashtable_free(gt->glyphs);
while (!shl_dlist_empty(>->atlases)) {
iter = gt->atlases.next;
shl_dlist_unlink(iter);
atlas = shl_dlist_entry(iter, struct atlas, list);
free(atlas->cache_pos);
free(atlas->cache_texpos);
free(atlas->cache_fgcol);
free(atlas->cache_bgcol);
if (gl)
gl_tex_free(&atlas->tex, 1);
free(atlas);
}
if (gl) {
gl_shader_unref(gt->shader);
gl_clear_error();
}
}
static int gltex_set(struct kmscon_text *txt)
{
struct gltex *gt = txt->data;
int ret;
static char *attr[] = { "position", "texture_position",
"fgcolor", "bgcolor" };
GLint s;
const char *ext;
struct uterm_mode *mode;
bool opengl;
memset(gt, 0, sizeof(*gt));
shl_dlist_init(>->atlases);
ret = shl_hashtable_new(>->glyphs, shl_direct_hash,
shl_direct_equal, NULL,
free_glyph);
if (ret)
return ret;
ret = shl_hashtable_new(>->bold_glyphs, shl_direct_hash,
shl_direct_equal, NULL,
free_glyph);
if (ret)
goto err_htable;
ret = uterm_display_use(txt->disp, &opengl);
if (ret < 0 || !opengl) {
if (ret == -EOPNOTSUPP)
log_error("display doesn't support hardware-acceleration");
goto err_bold_htable;
}
gl_clear_error();
ret = gl_shader_new(>->shader, gl_static_gltex_vert,
gl_static_gltex_frag, attr, 4, log_llog, NULL);
if (ret)
goto err_bold_htable;
gt->uni_proj = gl_shader_get_uniform(gt->shader, "projection");
gt->uni_atlas = gl_shader_get_uniform(gt->shader, "atlas");
gt->uni_advance_htex = gl_shader_get_uniform(gt->shader,
"advance_htex");
gt->uni_advance_vtex = gl_shader_get_uniform(gt->shader,
"advance_vtex");
if (gl_has_error(gt->shader)) {
log_warning("cannot create shader");
goto err_shader;
}
mode = uterm_display_get_current(txt->disp);
gt->sw = uterm_mode_get_width(mode);
gt->sh = uterm_mode_get_height(mode);
txt->cols = gt->sw / FONT_WIDTH(txt);
txt->rows = gt->sh / FONT_HEIGHT(txt);
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &s);
if (s <= 0)
s = 64;
else if (s > 2048)
s = 2048;
gt->max_tex_size = s;
gl_clear_error();
ext = (const char*)glGetString(GL_EXTENSIONS);
if (ext && strstr((const char*)ext, "GL_EXT_unpack_subimage")) {
gt->supports_rowlen = true;
} else {
log_warning("your GL implementation does not support GL_EXT_unpack_subimage, glyph-rendering may be slower than usual");
}
return 0;
err_shader:
gl_shader_unref(gt->shader);
err_bold_htable:
shl_hashtable_free(gt->bold_glyphs);
err_htable:
shl_hashtable_free(gt->glyphs);
return ret;
}
static int set_outputs(struct uterm_video *video)
{
struct uterm_display *iter;
int j, ret;
struct gl_shader *shader;
struct uterm_screen *screen;
ret = gl_shader_new(&shader);
if (ret) {
log_err("Cannot create shader: %d", ret);
return ret;
}
j = 0;
iter = uterm_video_get_displays(video);
for ( ; iter; iter = uterm_display_next(iter)) {
log_notice("Activating display %d %p...", j, iter);
ret = uterm_display_activate(iter, NULL);
if (ret)
log_err("Cannot activate display %d: %d", j, ret);
else
log_notice("Successfully activated display %d", j);
ret = uterm_display_set_dpms(iter, UTERM_DPMS_ON);
if (ret)
log_err("Cannot set DPMS to ON: %d", ret);
++j;
}
iter = uterm_video_get_displays(video);
for ( ; iter; iter = uterm_display_next(iter)) {
if (uterm_display_get_state(iter) != UTERM_DISPLAY_ACTIVE)
continue;
ret = uterm_screen_new_single(&screen, iter);
if (ret) {
log_err("Cannot create temp-screen object: %d", ret);
continue;
}
ret = uterm_screen_use(screen);
if (ret) {
log_err("Cannot use screen: %d", ret);
uterm_screen_unref(screen);
continue;
}
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(0, 0,
uterm_screen_width(screen),
uterm_screen_height(screen));
gl_shader_draw_def(shader, d_vert, d_col, 6);
if (gl_has_error())
log_err("GL error occurred");
ret = uterm_screen_swap(screen);
if (ret) {
log_err("Cannot swap screen: %d", ret);
uterm_screen_unref(screen);
continue;
}
log_notice("Successfully set screen on display %p", iter);
uterm_screen_unref(screen);
}
log_notice("Waiting 5 seconds...");
ev_eloop_run(eloop, 5000);
log_notice("Exiting...");
gl_shader_unref(shader);
return 0;
}