/**
* Return the pipe_resource that correspond to given buffer.
*/
struct pipe_resource *
stw_get_framebuffer_resource(struct st_framebuffer_iface *stfb,
enum st_attachment_type att)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
return stwfb->textures[att];
}
static boolean
stw_st_framebuffer_validate(struct st_framebuffer_iface *stfb,
const enum st_attachment_type *statts,
unsigned count,
struct pipe_resource **out)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
unsigned statt_mask, i;
statt_mask = 0x0;
for (i = 0; i < count; i++)
statt_mask |= 1 << statts[i];
pipe_mutex_lock(stwfb->fb->mutex);
if (stwfb->fb->must_resize || (statt_mask & ~stwfb->texture_mask)) {
stw_st_framebuffer_validate_locked(&stwfb->base,
stwfb->fb->width, stwfb->fb->height, statt_mask);
stwfb->fb->must_resize = FALSE;
}
for (i = 0; i < count; i++) {
out[i] = NULL;
pipe_resource_reference(&out[i], stwfb->textures[statts[i]]);
}
stw_framebuffer_release(stwfb->fb);
return TRUE;
}
/**
* Swap the buffers of the given framebuffer.
*/
boolean
stw_st_swap_framebuffer_locked(HDC hdc, struct st_framebuffer_iface *stfb)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
unsigned front = ST_ATTACHMENT_FRONT_LEFT, back = ST_ATTACHMENT_BACK_LEFT;
struct pipe_resource *ptex;
unsigned mask;
/* swap the textures */
ptex = stwfb->textures[front];
stwfb->textures[front] = stwfb->textures[back];
stwfb->textures[back] = ptex;
/* convert to mask */
front = 1 << front;
back = 1 << back;
/* swap the bits in mask */
mask = stwfb->texture_mask & ~(front | back);
if (stwfb->texture_mask & front)
mask |= back;
if (stwfb->texture_mask & back)
mask |= front;
stwfb->texture_mask = mask;
front = ST_ATTACHMENT_FRONT_LEFT;
return stw_st_framebuffer_present_locked(hdc, &stwfb->base, front);
}
static boolean
stw_st_framebuffer_flush_front(struct st_framebuffer_iface *stfb,
enum st_attachment_type statt)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
pipe_mutex_lock(stwfb->fb->mutex);
return stw_st_framebuffer_present_locked(&stwfb->base, statt);
}
/**
* Destroy a framebuffer interface.
*/
void
stw_st_destroy_framebuffer_locked(struct st_framebuffer_iface *stfb)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
int i;
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&stwfb->textures[i], NULL);
FREE(stwfb);
}
/**
* Present an attachment of the framebuffer.
*/
static boolean
stw_st_framebuffer_present_locked(struct st_framebuffer_iface *stfb,
enum st_attachment_type statt)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
struct pipe_resource *resource;
resource = stwfb->textures[statt];
if (resource) {
stw_framebuffer_present_locked(stwfb->fb->hDC, stwfb->fb, resource);
}
return TRUE;
}
static boolean
stw_st_framebuffer_flush_front(struct st_framebuffer_iface *stfb,
enum st_attachment_type statt)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
boolean ret;
HDC hDC;
pipe_mutex_lock(stwfb->fb->mutex);
/* We must not cache HDCs anywhere, as they can be invalidated by the
* application, or screen resolution changes. */
hDC = GetDC(stwfb->fb->hWnd);
ret = stw_st_framebuffer_present_locked(hDC, &stwfb->base, statt);
ReleaseDC(stwfb->fb->hWnd, hDC);
return ret;
}
static boolean
hgl_st_framebuffer_flush_front(struct st_context_iface *stctx,
struct st_framebuffer_iface* stfb, enum st_attachment_type statt)
{
CALLED();
struct hgl_context* context = (struct hgl_context*)stfb->st_manager_private;
if (!context) {
ERROR("%s: Couldn't obtain valid hgl_context!\n", __func__);
return FALSE;
}
#if 0
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
pipe_mutex_lock(stwfb->fb->mutex);
struct pipe_resource* resource = textures[statt];
if (resource)
stw_framebuffer_present_locked(...);
#endif
return TRUE;
}
/**
* Remove outdated textures and create the requested ones.
*/
static void
stw_st_framebuffer_validate_locked(struct st_framebuffer_iface *stfb,
unsigned width, unsigned height,
unsigned mask)
{
struct stw_st_framebuffer *stwfb = stw_st_framebuffer(stfb);
struct pipe_resource templ;
unsigned i;
/* remove outdated textures */
if (stwfb->texture_width != width || stwfb->texture_height != height) {
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&stwfb->textures[i], NULL);
}
memset(&templ, 0, sizeof(templ));
templ.target = PIPE_TEXTURE_2D;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
templ.last_level = 0;
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
enum pipe_format format;
unsigned bind;
/* the texture already exists or not requested */
if (stwfb->textures[i] || !(mask & (1 << i))) {
/* remember the texture */
if (stwfb->textures[i])
mask |= (1 << i);
continue;
}
switch (i) {
case ST_ATTACHMENT_FRONT_LEFT:
case ST_ATTACHMENT_BACK_LEFT:
format = stwfb->stvis.color_format;
bind = PIPE_BIND_DISPLAY_TARGET |
PIPE_BIND_RENDER_TARGET;
break;
case ST_ATTACHMENT_DEPTH_STENCIL:
format = stwfb->stvis.depth_stencil_format;
bind = PIPE_BIND_DEPTH_STENCIL;
break;
default:
format = PIPE_FORMAT_NONE;
break;
}
if (format != PIPE_FORMAT_NONE) {
templ.format = format;
templ.bind = bind;
stwfb->textures[i] =
stw_dev->screen->resource_create(stw_dev->screen, &templ);
}
}
stwfb->texture_width = width;
stwfb->texture_height = height;
stwfb->texture_mask = mask;
}