/**
* Process __DRIbuffer and convert them into pipe_resources.
*/
static void
dri2_drawable_process_buffers(struct dri_context *ctx,
struct dri_drawable *drawable,
__DRIbuffer *buffers, unsigned buffer_count,
const enum st_attachment_type *atts,
unsigned att_count)
{
struct dri_screen *screen = dri_screen(drawable->sPriv);
__DRIdrawable *dri_drawable = drawable->dPriv;
struct pipe_resource templ;
struct winsys_handle whandle;
boolean alloc_depthstencil = FALSE;
unsigned i, j, bind;
if (drawable->old_num == buffer_count &&
drawable->old_w == dri_drawable->w &&
drawable->old_h == dri_drawable->h &&
memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * buffer_count) == 0)
return;
/* See if we need a depth-stencil buffer. */
for (i = 0; i < att_count; i++) {
if (atts[i] == ST_ATTACHMENT_DEPTH_STENCIL) {
alloc_depthstencil = TRUE;
break;
}
}
/* Delete the resources we won't need. */
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
/* Don't delete the depth-stencil buffer, we can reuse it. */
if (i == ST_ATTACHMENT_DEPTH_STENCIL && alloc_depthstencil)
continue;
/* Flush the texture before unreferencing, so that other clients can
* see what the driver has rendered.
*/
if (i != ST_ATTACHMENT_DEPTH_STENCIL && drawable->textures[i]) {
struct pipe_context *pipe = ctx->st->pipe;
pipe->flush_resource(pipe, drawable->textures[i]);
}
pipe_resource_reference(&drawable->textures[i], NULL);
}
if (drawable->stvis.samples > 1) {
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
boolean del = TRUE;
/* Don't delete MSAA resources for the attachments which are enabled,
* we can reuse them. */
for (j = 0; j < att_count; j++) {
if (i == atts[j]) {
del = FALSE;
break;
}
}
if (del) {
pipe_resource_reference(&drawable->msaa_textures[i], NULL);
}
}
}
memset(&templ, 0, sizeof(templ));
templ.target = screen->target;
templ.last_level = 0;
templ.width0 = dri_drawable->w;
templ.height0 = dri_drawable->h;
templ.depth0 = 1;
templ.array_size = 1;
memset(&whandle, 0, sizeof(whandle));
/* Process DRI-provided buffers and get pipe_resources. */
for (i = 0; i < buffer_count; i++) {
__DRIbuffer *buf = &buffers[i];
enum st_attachment_type statt;
enum pipe_format format;
switch (buf->attachment) {
case __DRI_BUFFER_FRONT_LEFT:
if (!screen->auto_fake_front) {
continue; /* invalid attachment */
}
/* fallthrough */
case __DRI_BUFFER_FAKE_FRONT_LEFT:
statt = ST_ATTACHMENT_FRONT_LEFT;
break;
case __DRI_BUFFER_BACK_LEFT:
statt = ST_ATTACHMENT_BACK_LEFT;
break;
default:
continue; /* invalid attachment */
}
dri_drawable_get_format(drawable, statt, &format, &bind);
if (format == PIPE_FORMAT_NONE)
continue;
templ.format = format;
templ.bind = bind;
whandle.type = DRM_API_HANDLE_TYPE_SHARED;
whandle.handle = buf->name;
whandle.stride = buf->pitch;
drawable->textures[statt] =
screen->base.screen->resource_from_handle(screen->base.screen,
&templ, &whandle);
assert(drawable->textures[statt]);
}
/* Allocate private MSAA colorbuffers. */
if (drawable->stvis.samples > 1) {
for (i = 0; i < att_count; i++) {
enum st_attachment_type att = atts[i];
if (att == ST_ATTACHMENT_DEPTH_STENCIL)
continue;
if (drawable->textures[att]) {
templ.format = drawable->textures[att]->format;
templ.bind = drawable->textures[att]->bind;
templ.nr_samples = drawable->stvis.samples;
/* Try to reuse the resource.
* (the other resource parameters should be constant)
*/
if (!drawable->msaa_textures[att] ||
drawable->msaa_textures[att]->width0 != templ.width0 ||
drawable->msaa_textures[att]->height0 != templ.height0) {
/* Allocate a new one. */
pipe_resource_reference(&drawable->msaa_textures[att], NULL);
drawable->msaa_textures[att] =
screen->base.screen->resource_create(screen->base.screen,
&templ);
assert(drawable->msaa_textures[att]);
/* If there are any MSAA resources, we should initialize them
* such that they contain the same data as the single-sample
* resources we just got from the X server.
*
* The reason for this is that the state tracker (and
* therefore the app) can access the MSAA resources only.
* The single-sample resources are not exposed
* to the state tracker.
*
*/
dri_pipe_blit(ctx->st->pipe,
drawable->msaa_textures[att],
drawable->textures[att]);
}
}
else {
pipe_resource_reference(&drawable->msaa_textures[att], NULL);
}
}
}
/* Allocate a private depth-stencil buffer. */
if (alloc_depthstencil) {
enum st_attachment_type att = ST_ATTACHMENT_DEPTH_STENCIL;
struct pipe_resource **zsbuf;
enum pipe_format format;
unsigned bind;
dri_drawable_get_format(drawable, att, &format, &bind);
if (format) {
templ.format = format;
templ.bind = bind;
if (drawable->stvis.samples > 1) {
templ.nr_samples = drawable->stvis.samples;
zsbuf = &drawable->msaa_textures[att];
}
else {
templ.nr_samples = 0;
zsbuf = &drawable->textures[att];
}
/* Try to reuse the resource.
* (the other resource parameters should be constant)
*/
if (!*zsbuf ||
(*zsbuf)->width0 != templ.width0 ||
(*zsbuf)->height0 != templ.height0) {
/* Allocate a new one. */
pipe_resource_reference(zsbuf, NULL);
*zsbuf = screen->base.screen->resource_create(screen->base.screen,
&templ);
assert(*zsbuf);
}
}
else {
pipe_resource_reference(&drawable->msaa_textures[att], NULL);
pipe_resource_reference(&drawable->textures[att], NULL);
}
}
drawable->old_num = buffer_count;
drawable->old_w = dri_drawable->w;
drawable->old_h = dri_drawable->h;
memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * buffer_count);
}
static __DRIimage *
dri2_create_image_from_winsys(__DRIscreen *_screen,
int width, int height, int format,
struct winsys_handle *whandle, int pitch,
void *loaderPrivate)
{
struct dri_screen *screen = dri_screen(_screen);
__DRIimage *img;
struct pipe_resource templ;
unsigned tex_usage;
enum pipe_format pf;
tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
switch (format) {
case __DRI_IMAGE_FORMAT_RGB565:
pf = PIPE_FORMAT_B5G6R5_UNORM;
break;
case __DRI_IMAGE_FORMAT_XRGB8888:
pf = PIPE_FORMAT_B8G8R8X8_UNORM;
break;
case __DRI_IMAGE_FORMAT_ARGB8888:
pf = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case __DRI_IMAGE_FORMAT_ABGR8888:
pf = PIPE_FORMAT_R8G8B8A8_UNORM;
break;
default:
pf = PIPE_FORMAT_NONE;
break;
}
if (pf == PIPE_FORMAT_NONE)
return NULL;
img = CALLOC_STRUCT(__DRIimageRec);
if (!img)
return NULL;
memset(&templ, 0, sizeof(templ));
templ.bind = tex_usage;
templ.format = pf;
templ.target = screen->target;
templ.last_level = 0;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
whandle->stride = pitch * util_format_get_blocksize(pf);
img->texture = screen->base.screen->resource_from_handle(screen->base.screen,
&templ, whandle);
if (!img->texture) {
FREE(img);
return NULL;
}
img->level = 0;
img->layer = 0;
img->dri_format = format;
img->loader_private = loaderPrivate;
return img;
}
static __DRIimage *
dri2_create_image(__DRIscreen *_screen,
int width, int height, int format,
unsigned int use, void *loaderPrivate)
{
struct dri_screen *screen = dri_screen(_screen);
__DRIimage *img;
struct pipe_resource templ;
unsigned tex_usage;
enum pipe_format pf;
tex_usage = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
if (use & __DRI_IMAGE_USE_SCANOUT)
tex_usage |= PIPE_BIND_SCANOUT;
if (use & __DRI_IMAGE_USE_SHARE)
tex_usage |= PIPE_BIND_SHARED;
if (use & __DRI_IMAGE_USE_LINEAR)
tex_usage |= PIPE_BIND_LINEAR;
if (use & __DRI_IMAGE_USE_CURSOR) {
if (width != 64 || height != 64)
return NULL;
tex_usage |= PIPE_BIND_CURSOR;
}
switch (format) {
case __DRI_IMAGE_FORMAT_RGB565:
pf = PIPE_FORMAT_B5G6R5_UNORM;
break;
case __DRI_IMAGE_FORMAT_XRGB8888:
pf = PIPE_FORMAT_B8G8R8X8_UNORM;
break;
case __DRI_IMAGE_FORMAT_ARGB8888:
pf = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case __DRI_IMAGE_FORMAT_ABGR8888:
pf = PIPE_FORMAT_R8G8B8A8_UNORM;
break;
default:
pf = PIPE_FORMAT_NONE;
break;
}
if (pf == PIPE_FORMAT_NONE)
return NULL;
img = CALLOC_STRUCT(__DRIimageRec);
if (!img)
return NULL;
memset(&templ, 0, sizeof(templ));
templ.bind = tex_usage;
templ.format = pf;
templ.target = PIPE_TEXTURE_2D;
templ.last_level = 0;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
img->texture = screen->base.screen->resource_create(screen->base.screen, &templ);
if (!img->texture) {
FREE(img);
return NULL;
}
img->level = 0;
img->layer = 0;
img->dri_format = format;
img->dri_components = 0;
img->loader_private = loaderPrivate;
return img;
}
static __DRIbuffer *
dri2_allocate_buffer(__DRIscreen *sPriv,
unsigned attachment, unsigned format,
int width, int height)
{
struct dri_screen *screen = dri_screen(sPriv);
struct dri2_buffer *buffer;
struct pipe_resource templ;
enum pipe_format pf;
unsigned bind = 0;
struct winsys_handle whandle;
switch (attachment) {
case __DRI_BUFFER_FRONT_LEFT:
case __DRI_BUFFER_FAKE_FRONT_LEFT:
bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
break;
case __DRI_BUFFER_BACK_LEFT:
bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
break;
case __DRI_BUFFER_DEPTH:
case __DRI_BUFFER_DEPTH_STENCIL:
case __DRI_BUFFER_STENCIL:
bind = PIPE_BIND_DEPTH_STENCIL; /* XXX sampler? */
break;
}
/* because we get the handle and stride */
bind |= PIPE_BIND_SHARED;
switch (format) {
case 32:
pf = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case 24:
pf = PIPE_FORMAT_B8G8R8X8_UNORM;
break;
case 16:
pf = PIPE_FORMAT_Z16_UNORM;
break;
default:
return NULL;
}
buffer = CALLOC_STRUCT(dri2_buffer);
if (!buffer)
return NULL;
memset(&templ, 0, sizeof(templ));
templ.bind = bind;
templ.format = pf;
templ.target = PIPE_TEXTURE_2D;
templ.last_level = 0;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
buffer->resource =
screen->base.screen->resource_create(screen->base.screen, &templ);
if (!buffer->resource) {
FREE(buffer);
return NULL;
}
memset(&whandle, 0, sizeof(whandle));
if (screen->can_share_buffer)
whandle.type = DRM_API_HANDLE_TYPE_SHARED;
else
whandle.type = DRM_API_HANDLE_TYPE_KMS;
screen->base.screen->resource_get_handle(screen->base.screen,
buffer->resource, &whandle);
buffer->base.attachment = attachment;
buffer->base.name = whandle.handle;
buffer->base.cpp = util_format_get_blocksize(pf);
buffer->base.pitch = whandle.stride;
return &buffer->base;
}
static void
dri2_allocate_textures(struct dri_context *ctx,
struct dri_drawable *drawable,
const enum st_attachment_type *statts,
unsigned statts_count)
{
__DRIscreen *sPriv = drawable->sPriv;
__DRIdrawable *dri_drawable = drawable->dPriv;
struct dri_screen *screen = dri_screen(sPriv);
struct pipe_resource templ;
boolean alloc_depthstencil = FALSE;
unsigned i, j, bind;
const __DRIimageLoaderExtension *image = sPriv->image.loader;
/* Image specific variables */
struct __DRIimageList images;
/* Dri2 specific variables */
__DRIbuffer *buffers;
struct winsys_handle whandle;
unsigned num_buffers = statts_count;
/* First get the buffers from the loader */
if (image) {
if (!dri_image_drawable_get_buffers(drawable, &images,
statts, statts_count))
return;
}
else {
buffers = dri2_drawable_get_buffers(drawable, statts, &num_buffers);
if (!buffers || (drawable->old_num == num_buffers &&
drawable->old_w == dri_drawable->w &&
drawable->old_h == dri_drawable->h &&
memcmp(drawable->old, buffers,
sizeof(__DRIbuffer) * num_buffers) == 0))
return;
}
/* Second clean useless resources*/
/* See if we need a depth-stencil buffer. */
for (i = 0; i < statts_count; i++) {
if (statts[i] == ST_ATTACHMENT_DEPTH_STENCIL) {
alloc_depthstencil = TRUE;
break;
}
}
/* Delete the resources we won't need. */
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
/* Don't delete the depth-stencil buffer, we can reuse it. */
if (i == ST_ATTACHMENT_DEPTH_STENCIL && alloc_depthstencil)
continue;
/* Flush the texture before unreferencing, so that other clients can
* see what the driver has rendered.
*/
if (i != ST_ATTACHMENT_DEPTH_STENCIL && drawable->textures[i]) {
struct pipe_context *pipe = ctx->st->pipe;
pipe->flush_resource(pipe, drawable->textures[i]);
}
pipe_resource_reference(&drawable->textures[i], NULL);
}
if (drawable->stvis.samples > 1) {
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
boolean del = TRUE;
/* Don't delete MSAA resources for the attachments which are enabled,
* we can reuse them. */
for (j = 0; j < statts_count; j++) {
if (i == statts[j]) {
del = FALSE;
break;
}
}
if (del) {
pipe_resource_reference(&drawable->msaa_textures[i], NULL);
}
}
}
/* Third use the buffers retrieved to fill the drawable info */
memset(&templ, 0, sizeof(templ));
templ.target = screen->target;
templ.last_level = 0;
templ.depth0 = 1;
templ.array_size = 1;
if (image) {
if (images.image_mask & __DRI_IMAGE_BUFFER_FRONT) {
struct pipe_resource **buf =
&drawable->textures[ST_ATTACHMENT_FRONT_LEFT];
struct pipe_resource *texture = images.front->texture;
dri_drawable->w = texture->width0;
dri_drawable->h = texture->height0;
pipe_resource_reference(buf, texture);
}
if (images.image_mask & __DRI_IMAGE_BUFFER_BACK) {
struct pipe_resource **buf =
&drawable->textures[ST_ATTACHMENT_BACK_LEFT];
struct pipe_resource *texture = images.back->texture;
dri_drawable->w = texture->width0;
dri_drawable->h = texture->height0;
pipe_resource_reference(buf, texture);
}
/* Note: if there is both a back and a front buffer,
* then they have the same size.
*/
templ.width0 = dri_drawable->w;
templ.height0 = dri_drawable->h;
}
else {
memset(&whandle, 0, sizeof(whandle));
/* Process DRI-provided buffers and get pipe_resources. */
for (i = 0; i < num_buffers; i++) {
__DRIbuffer *buf = &buffers[i];
enum st_attachment_type statt;
enum pipe_format format;
switch (buf->attachment) {
case __DRI_BUFFER_FRONT_LEFT:
if (!screen->auto_fake_front) {
continue; /* invalid attachment */
}
/* fallthrough */
case __DRI_BUFFER_FAKE_FRONT_LEFT:
statt = ST_ATTACHMENT_FRONT_LEFT;
break;
case __DRI_BUFFER_BACK_LEFT:
statt = ST_ATTACHMENT_BACK_LEFT;
break;
default:
continue; /* invalid attachment */
}
dri_drawable_get_format(drawable, statt, &format, &bind);
if (format == PIPE_FORMAT_NONE)
continue;
/* dri2_drawable_get_buffers has already filled dri_drawable->w
* and dri_drawable->h */
templ.width0 = dri_drawable->w;
templ.height0 = dri_drawable->h;
templ.format = format;
templ.bind = bind;
whandle.handle = buf->name;
whandle.stride = buf->pitch;
if (screen->can_share_buffer)
whandle.type = DRM_API_HANDLE_TYPE_SHARED;
else
whandle.type = DRM_API_HANDLE_TYPE_KMS;
drawable->textures[statt] =
screen->base.screen->resource_from_handle(screen->base.screen,
&templ, &whandle);
assert(drawable->textures[statt]);
}
}
/* Allocate private MSAA colorbuffers. */
if (drawable->stvis.samples > 1) {
for (i = 0; i < statts_count; i++) {
enum st_attachment_type statt = statts[i];
if (statt == ST_ATTACHMENT_DEPTH_STENCIL)
continue;
if (drawable->textures[statt]) {
templ.format = drawable->textures[statt]->format;
templ.bind = drawable->textures[statt]->bind;
templ.nr_samples = drawable->stvis.samples;
/* Try to reuse the resource.
* (the other resource parameters should be constant)
*/
if (!drawable->msaa_textures[statt] ||
drawable->msaa_textures[statt]->width0 != templ.width0 ||
drawable->msaa_textures[statt]->height0 != templ.height0) {
/* Allocate a new one. */
pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
drawable->msaa_textures[statt] =
screen->base.screen->resource_create(screen->base.screen,
&templ);
assert(drawable->msaa_textures[statt]);
/* If there are any MSAA resources, we should initialize them
* such that they contain the same data as the single-sample
* resources we just got from the X server.
*
* The reason for this is that the state tracker (and
* therefore the app) can access the MSAA resources only.
* The single-sample resources are not exposed
* to the state tracker.
*
*/
dri_pipe_blit(ctx->st->pipe,
drawable->msaa_textures[statt],
drawable->textures[statt]);
}
}
else {
pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
}
}
}
/* Allocate a private depth-stencil buffer. */
if (alloc_depthstencil) {
enum st_attachment_type statt = ST_ATTACHMENT_DEPTH_STENCIL;
struct pipe_resource **zsbuf;
enum pipe_format format;
unsigned bind;
dri_drawable_get_format(drawable, statt, &format, &bind);
if (format) {
templ.format = format;
templ.bind = bind;
if (drawable->stvis.samples > 1) {
templ.nr_samples = drawable->stvis.samples;
zsbuf = &drawable->msaa_textures[statt];
}
else {
templ.nr_samples = 0;
zsbuf = &drawable->textures[statt];
}
/* Try to reuse the resource.
* (the other resource parameters should be constant)
*/
if (!*zsbuf ||
(*zsbuf)->width0 != templ.width0 ||
(*zsbuf)->height0 != templ.height0) {
/* Allocate a new one. */
pipe_resource_reference(zsbuf, NULL);
*zsbuf = screen->base.screen->resource_create(screen->base.screen,
&templ);
assert(*zsbuf);
}
}
else {
pipe_resource_reference(&drawable->msaa_textures[statt], NULL);
pipe_resource_reference(&drawable->textures[statt], NULL);
}
}
/* For DRI2, we may get the same buffers again from the server.
* To prevent useless imports of gem names, drawable->old* is used
* to bypass the import if we get the same buffers. This doesn't apply
* to DRI3/Wayland, users of image.loader, since the buffer is managed
* by the client (no import), and the back buffer is going to change
* at every redraw.
*/
if (!image) {
drawable->old_num = num_buffers;
drawable->old_w = dri_drawable->w;
drawable->old_h = dri_drawable->h;
memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * num_buffers);
}
}
/**
* Process __DRIbuffer and convert them into pipe_resources.
*/
static void
dri2_drawable_process_buffers(struct dri_drawable *drawable,
__DRIbuffer *buffers, unsigned count)
{
struct dri_screen *screen = dri_screen(drawable->sPriv);
__DRIdrawable *dri_drawable = drawable->dPriv;
struct pipe_resource templ;
struct winsys_handle whandle;
boolean have_depth = FALSE;
unsigned i, bind;
if (drawable->old_num == count &&
drawable->old_w == dri_drawable->w &&
drawable->old_h == dri_drawable->h &&
memcmp(drawable->old, buffers, sizeof(__DRIbuffer) * count) == 0)
return;
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&drawable->textures[i], NULL);
memset(&templ, 0, sizeof(templ));
templ.target = screen->target;
templ.last_level = 0;
templ.width0 = dri_drawable->w;
templ.height0 = dri_drawable->h;
templ.depth0 = 1;
templ.array_size = 1;
memset(&whandle, 0, sizeof(whandle));
for (i = 0; i < count; i++) {
__DRIbuffer *buf = &buffers[i];
enum st_attachment_type statt;
enum pipe_format format;
switch (buf->attachment) {
case __DRI_BUFFER_FRONT_LEFT:
if (!screen->auto_fake_front) {
statt = ST_ATTACHMENT_INVALID;
break;
}
/* fallthrough */
case __DRI_BUFFER_FAKE_FRONT_LEFT:
statt = ST_ATTACHMENT_FRONT_LEFT;
break;
case __DRI_BUFFER_BACK_LEFT:
statt = ST_ATTACHMENT_BACK_LEFT;
break;
case __DRI_BUFFER_DEPTH:
case __DRI_BUFFER_DEPTH_STENCIL:
case __DRI_BUFFER_STENCIL:
/* use only the first depth/stencil buffer */
if (!have_depth) {
have_depth = TRUE;
statt = ST_ATTACHMENT_DEPTH_STENCIL;
}
else {
statt = ST_ATTACHMENT_INVALID;
}
break;
default:
statt = ST_ATTACHMENT_INVALID;
break;
}
dri_drawable_get_format(drawable, statt, &format, &bind);
if (statt == ST_ATTACHMENT_INVALID || format == PIPE_FORMAT_NONE)
continue;
templ.format = format;
templ.bind = bind;
whandle.handle = buf->name;
whandle.stride = buf->pitch;
drawable->textures[statt] =
screen->base.screen->resource_from_handle(screen->base.screen,
&templ, &whandle);
}
drawable->old_num = count;
drawable->old_w = dri_drawable->w;
drawable->old_h = dri_drawable->h;
memcpy(drawable->old, buffers, sizeof(__DRIbuffer) * count);
}
/**
* DRI2 flush extension, the flush_with_flags function.
*
* \param context the context
* \param drawable the drawable to flush
* \param flags a combination of _DRI2_FLUSH_xxx flags
* \param throttle_reason the reason for throttling, 0 = no throttling
*/
void
dri_flush(__DRIcontext *cPriv,
__DRIdrawable *dPriv,
unsigned flags,
enum __DRI2throttleReason reason)
{
struct dri_context *ctx = dri_context(cPriv);
struct dri_drawable *drawable = dri_drawable(dPriv);
struct st_context_iface *st;
unsigned flush_flags;
boolean swap_msaa_buffers = FALSE;
if (!ctx) {
assert(0);
return;
}
st = ctx->st;
if (st->thread_finish)
st->thread_finish(st);
if (drawable) {
/* prevent recursion */
if (drawable->flushing)
return;
drawable->flushing = TRUE;
}
else {
flags &= ~__DRI2_FLUSH_DRAWABLE;
}
/* Flush the drawable. */
if ((flags & __DRI2_FLUSH_DRAWABLE) &&
drawable->textures[ST_ATTACHMENT_BACK_LEFT]) {
struct pipe_context *pipe = st->pipe;
if (drawable->stvis.samples > 1 &&
reason == __DRI2_THROTTLE_SWAPBUFFER) {
/* Resolve the MSAA back buffer. */
dri_pipe_blit(st->pipe,
drawable->textures[ST_ATTACHMENT_BACK_LEFT],
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]);
if (drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] &&
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT]) {
swap_msaa_buffers = TRUE;
}
/* FRONT_LEFT is resolved in drawable->flush_frontbuffer. */
}
dri_postprocessing(ctx, drawable, ST_ATTACHMENT_BACK_LEFT);
if (ctx->hud) {
hud_draw(ctx->hud, drawable->textures[ST_ATTACHMENT_BACK_LEFT]);
}
pipe->flush_resource(pipe, drawable->textures[ST_ATTACHMENT_BACK_LEFT]);
if (pipe->invalidate_resource &&
(flags & __DRI2_FLUSH_INVALIDATE_ANCILLARY)) {
if (drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
pipe->invalidate_resource(pipe, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
if (drawable->msaa_textures[ST_ATTACHMENT_DEPTH_STENCIL])
pipe->invalidate_resource(pipe, drawable->msaa_textures[ST_ATTACHMENT_DEPTH_STENCIL]);
}
}
flush_flags = 0;
if (flags & __DRI2_FLUSH_CONTEXT)
flush_flags |= ST_FLUSH_FRONT;
if (reason == __DRI2_THROTTLE_SWAPBUFFER)
flush_flags |= ST_FLUSH_END_OF_FRAME;
/* Flush the context and throttle if needed. */
if (dri_screen(ctx->sPriv)->throttling_enabled &&
drawable &&
(reason == __DRI2_THROTTLE_SWAPBUFFER ||
reason == __DRI2_THROTTLE_FLUSHFRONT)) {
/* Throttle.
*
* This pulls a fence off the throttling queue and waits for it if the
* number of fences on the throttling queue has reached the desired
* number.
*
* Then flushes to insert a fence at the current rendering position, and
* pushes that fence on the queue. This requires that the st_context_iface
* flush method returns a fence even if there are no commands to flush.
*/
struct pipe_screen *screen = drawable->screen->base.screen;
struct pipe_fence_handle *fence;
fence = swap_fences_pop_front(drawable);
if (fence) {
(void) screen->fence_finish(screen, NULL, fence, PIPE_TIMEOUT_INFINITE);
screen->fence_reference(screen, &fence, NULL);
}
st->flush(st, flush_flags, &fence);
if (fence) {
swap_fences_push_back(drawable, fence);
screen->fence_reference(screen, &fence, NULL);
}
}
else if (flags & (__DRI2_FLUSH_DRAWABLE | __DRI2_FLUSH_CONTEXT)) {
st->flush(st, flush_flags, NULL);
}
if (drawable) {
drawable->flushing = FALSE;
}
/* Swap the MSAA front and back buffers, so that reading
* from the front buffer after SwapBuffers returns what was
* in the back buffer.
*/
if (swap_msaa_buffers) {
struct pipe_resource *tmp =
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT];
drawable->msaa_textures[ST_ATTACHMENT_FRONT_LEFT] =
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT];
drawable->msaa_textures[ST_ATTACHMENT_BACK_LEFT] = tmp;
/* Now that we have swapped the buffers, this tells the state
* tracker to revalidate the framebuffer.
*/
p_atomic_inc(&drawable->base.stamp);
}
}
static boolean
dri_st_framebuffer_validate(struct st_context_iface *stctx,
struct st_framebuffer_iface *stfbi,
const enum st_attachment_type *statts,
unsigned count,
struct pipe_resource **out)
{
struct dri_context *ctx = (struct dri_context *)stctx->st_manager_private;
struct dri_drawable *drawable =
(struct dri_drawable *) stfbi->st_manager_private;
struct dri_screen *screen = dri_screen(drawable->sPriv);
unsigned statt_mask, new_mask;
boolean new_stamp;
int i;
unsigned int lastStamp;
struct pipe_resource **textures =
drawable->stvis.samples > 1 ? drawable->msaa_textures
: drawable->textures;
statt_mask = 0x0;
for (i = 0; i < count; i++)
statt_mask |= (1 << statts[i]);
/* record newly allocated textures */
new_mask = (statt_mask & ~drawable->texture_mask);
/*
* dPriv->dri2.stamp is the server stamp. dPriv->lastStamp is the
* client stamp. It has the value of the server stamp when last
* checked.
*/
do {
lastStamp = drawable->dPriv->lastStamp;
new_stamp = (drawable->texture_stamp != lastStamp);
if (new_stamp || new_mask || screen->broken_invalidate) {
if (new_stamp && drawable->update_drawable_info)
drawable->update_drawable_info(drawable);
drawable->allocate_textures(ctx, drawable, statts, count);
/* add existing textures */
for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
if (textures[i])
statt_mask |= (1 << i);
}
drawable->texture_stamp = lastStamp;
drawable->texture_mask = statt_mask;
}
} while (lastStamp != drawable->dPriv->lastStamp);
if (!out)
return TRUE;
/* Set the window-system buffers for the state tracker. */
for (i = 0; i < count; i++) {
out[i] = NULL;
pipe_resource_reference(&out[i], textures[statts[i]]);
}
return TRUE;
}
/**
* Allocate framebuffer attachments.
*
* During fixed-size operation, the function keeps allocating new attachments
* as they are requested. Unused attachments are not removed, not until the
* framebuffer is resized or destroyed.
*/
static void
drisw_allocate_textures(struct dri_context *stctx,
struct dri_drawable *drawable,
const enum st_attachment_type *statts,
unsigned count)
{
struct dri_screen *screen = dri_screen(drawable->sPriv);
const __DRIswrastLoaderExtension *loader = drawable->dPriv->driScreenPriv->swrast_loader;
struct pipe_resource templ;
unsigned width, height;
boolean resized;
unsigned i;
width = drawable->dPriv->w;
height = drawable->dPriv->h;
resized = (drawable->old_w != width ||
drawable->old_h != height);
/* remove outdated textures */
if (resized) {
for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
pipe_resource_reference(&drawable->textures[i], NULL);
}
memset(&templ, 0, sizeof(templ));
templ.target = screen->target;
templ.width0 = width;
templ.height0 = height;
templ.depth0 = 1;
templ.array_size = 1;
templ.last_level = 0;
for (i = 0; i < count; i++) {
enum pipe_format format;
unsigned bind;
/* the texture already exists or not requested */
if (drawable->textures[statts[i]])
continue;
dri_drawable_get_format(drawable, statts[i], &format, &bind);
/* if we don't do any present, no need for display targets */
if (statts[i] != ST_ATTACHMENT_DEPTH_STENCIL && !swrast_no_present)
bind |= PIPE_BIND_DISPLAY_TARGET;
if (format == PIPE_FORMAT_NONE)
continue;
templ.format = format;
templ.bind = bind;
if (statts[i] == ST_ATTACHMENT_FRONT_LEFT &&
screen->base.screen->resource_create_front &&
loader->base.version >= 3) {
drawable->textures[statts[i]] =
screen->base.screen->resource_create_front(screen->base.screen, &templ, (const void *)drawable);
} else
drawable->textures[statts[i]] =
screen->base.screen->resource_create(screen->base.screen, &templ);
}
drawable->old_w = width;
drawable->old_h = height;
}
GLboolean
dri_create_context(gl_api api, const struct gl_config * visual,
__DRIcontext * cPriv,
unsigned major_version,
unsigned minor_version,
uint32_t flags,
unsigned *error,
void *sharedContextPrivate)
{
__DRIscreen *sPriv = cPriv->driScreenPriv;
struct dri_screen *screen = dri_screen(sPriv);
struct st_api *stapi = screen->st_api;
struct dri_context *ctx = NULL;
struct st_context_iface *st_share = NULL;
struct st_context_attribs attribs;
enum st_context_error ctx_err = 0;
memset(&attribs, 0, sizeof(attribs));
switch (api) {
case API_OPENGLES:
attribs.profile = ST_PROFILE_OPENGL_ES1;
break;
case API_OPENGLES2:
attribs.profile = ST_PROFILE_OPENGL_ES2;
break;
case API_OPENGL:
attribs.profile = ST_PROFILE_DEFAULT;
attribs.major = major_version;
attribs.minor = minor_version;
if ((flags & __DRI_CTX_FLAG_DEBUG) != 0)
attribs.flags |= ST_CONTEXT_FLAG_DEBUG;
if ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0)
attribs.flags |= ST_CONTEXT_FLAG_FORWARD_COMPATIBLE;
break;
default:
*error = __DRI_CTX_ERROR_BAD_API;
goto fail;
}
if (sharedContextPrivate) {
st_share = ((struct dri_context *)sharedContextPrivate)->st;
}
ctx = CALLOC_STRUCT(dri_context);
if (ctx == NULL) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
goto fail;
}
cPriv->driverPrivate = ctx;
ctx->cPriv = cPriv;
ctx->sPriv = sPriv;
driParseConfigFiles(&ctx->optionCache,
&screen->optionCache, sPriv->myNum, driver_descriptor.name);
dri_fill_st_options(&attribs.options, &ctx->optionCache);
dri_fill_st_visual(&attribs.visual, screen, visual);
ctx->st = stapi->create_context(stapi, &screen->base, &attribs, &ctx_err,
st_share);
if (ctx->st == NULL) {
switch (ctx_err) {
case ST_CONTEXT_SUCCESS:
*error = __DRI_CTX_ERROR_SUCCESS;
break;
case ST_CONTEXT_ERROR_NO_MEMORY:
*error = __DRI_CTX_ERROR_NO_MEMORY;
break;
case ST_CONTEXT_ERROR_BAD_API:
*error = __DRI_CTX_ERROR_BAD_API;
break;
case ST_CONTEXT_ERROR_BAD_VERSION:
*error = __DRI_CTX_ERROR_BAD_VERSION;
break;
case ST_CONTEXT_ERROR_BAD_FLAG:
*error = __DRI_CTX_ERROR_BAD_FLAG;
break;
case ST_CONTEXT_ERROR_UNKNOWN_ATTRIBUTE:
*error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
break;
case ST_CONTEXT_ERROR_UNKNOWN_FLAG:
*error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
break;
}
goto fail;
}
ctx->st->st_manager_private = (void *) ctx;
ctx->stapi = stapi;
// Context successfully created. See if post-processing is requested.
dri_pp_query(ctx);
ctx->pp = pp_init(screen->base.screen, ctx->pp_enabled);
*error = __DRI_CTX_ERROR_SUCCESS;
return GL_TRUE;
fail:
if (ctx && ctx->st)
ctx->st->destroy(ctx->st);
FREE(ctx);
return GL_FALSE;
}