SDL_Surface* Mir_SetVideoMode(_THIS, SDL_Surface* current,
int width, int height, int bpp, Uint32 flags)
{
if (this->hidden->surface && mir_surface_is_valid(this->hidden->surface))
{
mir_surface_release_sync(this->hidden->surface);
this->hidden->surface = NULL;
}
Uint32 output_id = mir_display_output_id_invalid;
if (flags & SDL_FULLSCREEN)
{
MirDisplayConfiguration* display_config =
mir_connection_create_display_config(this->hidden->connection);
Uint32 fallback_output_id = mir_display_output_id_invalid;
Uint32 d;
Uint32 m;
this->hidden->mode_changed = SDL_FALSE;
for (d = 0; d < display_config->num_outputs; ++d)
{
MirDisplayOutput const* out = display_config->outputs + d;
if (out->used && out->connected)
{
if (out->modes[out->current_mode].horizontal_resolution == width &&
out->modes[out->current_mode].vertical_resolution == height)
{
output_id = out->output_id;
break;
}
if (fallback_output_id == mir_display_output_id_invalid &&
out->modes[out->current_mode].horizontal_resolution >= width &&
out->modes[out->current_mode].vertical_resolution >= height)
{
fallback_output_id = out->output_id;
}
}
}
if (output_id == mir_display_output_id_invalid)
{
for (d = 0; d < display_config->num_outputs; ++d)
{
MirDisplayOutput* out = display_config->outputs + d;
if (out->used && out->connected)
{
for (m = 0; m < out->num_modes; ++m)
{
if (out->modes[m].horizontal_resolution == width &&
out->modes[m].vertical_resolution == height)
{
this->hidden->mode_changed = SDL_TRUE;
output_id = out->output_id;
out->current_mode = m;
mir_wait_for(
mir_connection_apply_display_config(this->hidden->connection,
display_config)
);
break;
}
}
}
}
}
if (fallback_output_id == mir_display_output_id_invalid)
{
/* There's no native resolution for the requested format, so let's
* just ensure we've an output large enough to show it */
for (d = 0; d < display_config->num_outputs; ++d)
{
MirDisplayOutput* out = display_config->outputs + d;
if (out->used && out->connected)
{
for (m = 0; m < out->num_modes; ++m)
{
if (out->modes[m].horizontal_resolution >= width &&
out->modes[m].vertical_resolution >= height)
{
this->hidden->mode_changed = SDL_TRUE;
fallback_output_id = out->output_id;
out->current_mode = m;
mir_wait_for(
mir_connection_apply_display_config(this->hidden->connection,
display_config)
);
break;
}
}
}
}
/* Setting output_id = fallback_output_id here seems to cause
* troubles to mir in creating a new surface */
}
mir_display_config_destroy(display_config);
if (output_id == mir_display_output_id_invalid &&
fallback_output_id == mir_display_output_id_invalid)
{
SDL_SetError("Impossible to find a valid output for mode %dx%d",
width, height);
return NULL;
}
}
else if (this->hidden->mode_changed)
{
Uint32 d;
SDL_bool any_changed = SDL_FALSE;
MirDisplayConfiguration* display_config =
mir_connection_create_display_config(this->hidden->connection);
for (d = 0; d < display_config->num_outputs; ++d)
{
MirDisplayOutput* out = display_config->outputs + d;
if (out->used && out->connected)
{
if (out->current_mode != out->preferred_mode)
{
out->current_mode = out->preferred_mode;
any_changed = SDL_TRUE;
}
}
}
if (any_changed)
{
mir_wait_for(
mir_connection_apply_display_config(this->hidden->connection,
display_config)
);
}
this->hidden->mode_changed = SDL_FALSE;
mir_display_config_destroy(display_config);
}
MirSurfaceParameters surfaceparm =
{
.name = "MirSurface",
.width = width,
.height = height,
.pixel_format = this->hidden->pixel_format,
.output_id = output_id,
.buffer_usage = (flags & SDL_OPENGL) ? mir_buffer_usage_hardware :
mir_buffer_usage_software,
};
this->hidden->surface =
mir_connection_create_surface_sync(this->hidden->connection, &surfaceparm);
if (!mir_surface_is_valid(this->hidden->surface))
{
const char* error = mir_surface_get_error_message(this->hidden->surface);
SDL_SetError("Failed to created a mir surface: %s", error);
mir_surface_release_sync(this->hidden->surface);
return NULL;
}
MirEventDelegate delegate = {
Mir_HandleSurfaceEvent,
NULL
};
mir_surface_set_event_handler(this->hidden->surface, &delegate);
if (flags & SDL_OPENGL)
{
current->flags |= SDL_OPENGL;
if (Mir_GL_CreateESurface(this) < 0)
{
SDL_SetError("Could not Create EGL Surface");
return NULL;
}
if (Mir_GL_CreateContext(this) < 0)
{
SDL_SetError("Could not Create GL Context");
return NULL;
}
}
else
{
if ((current->w != width || current->h != height))
{
current->pixels = NULL;
current->w = width;
current->h = height;
current->pitch = SDL_CalculatePitch(current);
current->pixels = SDL_calloc(1, current->h * current->pitch);
if (!current->pixels)
{
SDL_OutOfMemory();
return NULL;
}
this->UpdateRects = Mir_UpdateRects;
}
}
return current;
}
static void Mir_ModeListFree(_THIS)
{
if (this->hidden->modelist)
{
int i = 0;
while (this->hidden->modelist[i] != NULL)
{
SDL_free(this->hidden->modelist[i]);
++i;
}
SDL_free(this->hidden->modelist);
this->hidden->modelist = NULL;
}
}
static void Mir_ModeListUpdate(_THIS)
{
Uint32 d, m;
Uint32 valid_outputs = 0;
Mir_ModeListFree(this);
MirDisplayConfiguration* display_config =
mir_connection_create_display_config(this->hidden->connection);
for (d = 0; d < display_config->num_outputs; d++)
{
MirDisplayOutput const* out = display_config->outputs + d;
if (out->used && out->connected)
valid_outputs += out->num_modes;
}
this->hidden->modelist = SDL_calloc(valid_outputs + 1, sizeof(SDL_Rect*));
valid_outputs = 0;
for (d = 0; d < display_config->num_outputs; ++d)
{
MirDisplayOutput const* out = display_config->outputs + d;
if (out->used && out->connected)
{
for (m = 0; m < out->num_modes; ++m)
{
SDL_Rect* sdl_output = SDL_calloc(1, sizeof(SDL_Rect));
sdl_output->x = out->position_x;
sdl_output->y = out->position_y;
sdl_output->w = out->modes[m].horizontal_resolution;
sdl_output->h = out->modes[m].vertical_resolution;
this->hidden->modelist[valid_outputs] = sdl_output;
++valid_outputs;
}
}
}
this->hidden->modelist[valid_outputs] = NULL;
mir_display_config_destroy(display_config);
}
bool
NativeStateMir::create_window(WindowProperties const& properties)
{
static const char *win_name("glmark2 "GLMARK_VERSION);
if (!mir_connection_is_valid(mir_connection_)) {
Log::error("Cannot create a Mir surface without a valid connection "
"to the Mir display server!\n");
return false;
}
/* Recreate an existing window only if it has actually been resized */
if (mir_surface_) {
if (properties_.fullscreen != properties.fullscreen ||
(properties.fullscreen == false &&
(properties_.width != properties.width ||
properties_.height != properties.height)))
{
mir_surface_release_sync(mir_surface_);
mir_surface_ = 0;
}
else
{
return true;
}
}
uint32_t output_id = mir_display_output_id_invalid;
properties_ = properties;
if (properties_.fullscreen) {
DisplayConfiguration display_config(mir_connection_);
if (!display_config.is_valid()) {
Log::error("Couldn't get display configuration from the Mir display server!\n");
return false;
}
const MirDisplayOutput* active_output = find_active_output(display_config);
if (active_output == NULL) {
Log::error("Couldn't find an active output in the Mir display server!\n");
return false;
}
const MirDisplayMode* current_mode =
&active_output->modes[active_output->current_mode];
properties_.width = current_mode->horizontal_resolution;
properties_.height = current_mode->vertical_resolution;
output_id = active_output->output_id;
Log::debug("Making Mir surface fullscreen on output %u (%ux%u)\n",
output_id, properties_.width, properties_.height);
}
MirPixelFormat surface_format = find_best_surface_format(mir_connection_);
if (surface_format == mir_pixel_format_invalid) {
Log::error("Couldn't find a pixel format to use for the Mir surface!\n");
return false;
}
Log::debug("Using pixel format %u for the Mir surface\n", surface_format);
MirSurfaceParameters surface_parameters = {
win_name,
properties_.width, properties_.height,
surface_format,
mir_buffer_usage_hardware,
output_id
};
mir_surface_ = mir_connection_create_surface_sync(mir_connection_,
&surface_parameters);
if (!mir_surface_ || !mir_surface_is_valid(mir_surface_)) {
Log::error("Failed to create Mir surface!\n");
return false;
}
return true;
}