if (!stw_dev)
return FALSE;
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
src = stw_lookup_context_locked( dhrcSource );
dst = stw_lookup_context_locked( dhrcDest );
(void) fuMask;
}
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
return ret;
}
if (!stw_dev)
return FALSE;
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
ctx1 = stw_lookup_context_locked( dhglrc1 );
ctx2 = stw_lookup_context_locked( dhglrc2 );
- if (ctx1 && ctx2 && ctx2->st->share)
+ if (ctx1 && ctx2 && ctx2->st->share) {
ret = ctx2->st->share(ctx2->st, ctx1->st);
+ ctx1->shared = TRUE;
+ ctx2->shared = TRUE;
+ }
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
return ret;
}
}
+/**
+ * Return the stw pixel format that most closely matches the pixel format
+ * on HDC.
+ * Used to get a pixel format when SetPixelFormat() hasn't been called before.
+ */
+static int
+get_matching_pixel_format(HDC hdc)
+{
+ int iPixelFormat = GetPixelFormat(hdc);
+ PIXELFORMATDESCRIPTOR pfd;
+
+ if (!iPixelFormat)
+ return 0;
+ if (!DescribePixelFormat(hdc, iPixelFormat, sizeof(pfd), &pfd))
+ return 0;
+ return stw_pixelformat_choose(hdc, &pfd);
+}
+
+
/**
* Called via DrvCreateContext(), DrvCreateLayerContext() and
* wglCreateContextAttribsARB() to actually create a rendering context.
fb = stw_framebuffer_from_hdc( hdc );
if (fb) {
iPixelFormat = fb->iPixelFormat;
- stw_framebuffer_release(fb);
+ stw_framebuffer_unlock(fb);
} else {
- return 0;
+ /* Applications should call SetPixelFormat before creating a context,
+ * but not all do, and the opengl32 runtime seems to use a default
+ * pixel format in some cases, so use that.
+ */
+ iPixelFormat = get_matching_pixel_format(hdc);
+ if (!iPixelFormat)
+ return 0;
}
pfi = stw_pixelformat_get_info( iPixelFormat );
if (hShareContext != 0) {
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
shareCtx = stw_lookup_context_locked( hShareContext );
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ shareCtx->shared = TRUE;
+ stw_unlock_contexts(stw_dev);
}
ctx = CALLOC_STRUCT( stw_context );
if (ctx == NULL)
goto no_ctx;
- ctx->hdc = hdc;
+ ctx->hDrawDC = hdc;
+ ctx->hReadDC = hdc;
ctx->iPixelFormat = iPixelFormat;
+ ctx->shared = shareCtx != NULL;
memset(&attribs, 0, sizeof(attribs));
attribs.visual = pfi->stvis;
ctx->st->st_manager_private = (void *) ctx;
if (ctx->st->cso_context) {
- ctx->hud = hud_create(ctx->st->pipe, ctx->st->cso_context);
+ ctx->hud = hud_create(ctx->st->cso_context, NULL);
}
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
if (handle) {
/* We're replacing the context data for this handle. See the
* wglCreateContextAttribsARB() function.
if (old_ctx) {
/* free the old context data associated with this handle */
if (old_ctx->hud) {
- hud_destroy(old_ctx->hud);
+ hud_destroy(old_ctx->hud, NULL);
}
ctx->st->destroy(old_ctx->st);
FREE(old_ctx);
ctx->dhglrc = handle;
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
+
if (!ctx->dhglrc)
goto no_hglrc;
no_hglrc:
if (ctx->hud) {
- hud_destroy(ctx->hud);
+ hud_destroy(ctx->hud, NULL);
}
ctx->st->destroy(ctx->st);
no_st_ctx:
if (!stw_dev)
return FALSE;
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
ctx = stw_lookup_context_locked(dhglrc);
handle_table_remove(stw_dev->ctx_table, dhglrc);
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
if (ctx) {
struct stw_context *curctx = stw_current_context();
stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
if (ctx->hud) {
- hud_destroy(ctx->hud);
+ hud_destroy(ctx->hud, NULL);
}
ctx->st->destroy(ctx->st);
if (!stw_dev)
return FALSE;
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ stw_lock_contexts(stw_dev);
ctx = stw_lookup_context_locked( dhglrc );
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
if (!ctx)
return FALSE;
if (ctx != stw_current_context())
return FALSE;
- if (stw_make_current( NULL, 0 ) == FALSE)
+ if (stw_make_current( NULL, NULL, 0 ) == FALSE)
return FALSE;
return TRUE;
if (!ctx)
return NULL;
- return ctx->hdc;
+ return ctx->hDrawDC;
}
+HDC
+stw_get_current_read_dc( void )
+{
+ struct stw_context *ctx;
+
+ ctx = stw_current_context();
+ if (!ctx)
+ return NULL;
+
+ return ctx->hReadDC;
+}
BOOL
-stw_make_current(HDC hdc, DHGLRC dhglrc)
+stw_make_current(HDC hDrawDC, HDC hReadDC, DHGLRC dhglrc)
{
- struct stw_context *curctx = NULL;
+ struct stw_context *old_ctx = NULL;
struct stw_context *ctx = NULL;
- struct stw_framebuffer *fb = NULL;
BOOL ret = FALSE;
if (!stw_dev)
return FALSE;
- curctx = stw_current_context();
- if (curctx != NULL) {
- if (curctx->dhglrc == dhglrc) {
- if (curctx->hdc == hdc) {
+ old_ctx = stw_current_context();
+ if (old_ctx != NULL) {
+ if (old_ctx->dhglrc == dhglrc) {
+ if (old_ctx->hDrawDC == hDrawDC && old_ctx->hReadDC == hReadDC) {
/* Return if already current. */
return TRUE;
}
} else {
- curctx->st->flush(curctx->st, ST_FLUSH_FRONT, NULL);
+ if (old_ctx->shared) {
+ struct pipe_fence_handle *fence = NULL;
+ old_ctx->st->flush(old_ctx->st,
+ ST_FLUSH_FRONT | ST_FLUSH_WAIT, &fence);
+ }
+ else {
+ old_ctx->st->flush(old_ctx->st, ST_FLUSH_FRONT, NULL);
+ }
}
}
if (dhglrc) {
- pipe_mutex_lock( stw_dev->ctx_mutex );
+ struct stw_framebuffer *fb = NULL;
+ struct stw_framebuffer *fbRead = NULL;
+ stw_lock_contexts(stw_dev);
ctx = stw_lookup_context_locked( dhglrc );
- pipe_mutex_unlock( stw_dev->ctx_mutex );
+ stw_unlock_contexts(stw_dev);
if (!ctx) {
goto fail;
}
- fb = stw_framebuffer_from_hdc( hdc );
+ /* This call locks fb's mutex */
+ fb = stw_framebuffer_from_hdc( hDrawDC );
if (fb) {
stw_framebuffer_update(fb);
}
* pixel format in some cases, so we must create a framebuffer for
* those here.
*/
- int iPixelFormat = GetPixelFormat(hdc);
+ int iPixelFormat = get_matching_pixel_format(hDrawDC);
if (iPixelFormat)
- fb = stw_framebuffer_create( hdc, iPixelFormat );
+ fb = stw_framebuffer_create( hDrawDC, iPixelFormat );
if (!fb)
goto fail;
}
if (fb->iPixelFormat != ctx->iPixelFormat) {
+ stw_framebuffer_unlock(fb);
SetLastError(ERROR_INVALID_PIXEL_FORMAT);
goto fail;
}
/* Bind the new framebuffer */
- ctx->hdc = hdc;
+ ctx->hDrawDC = hDrawDC;
+ ctx->hReadDC = hReadDC;
- ret = stw_dev->stapi->make_current(stw_dev->stapi, ctx->st,
- fb->stfb, fb->stfb);
- stw_framebuffer_reference(&ctx->current_framebuffer, fb);
- } else {
- ret = stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
- }
+ struct stw_framebuffer *old_fb = ctx->current_framebuffer;
+ if (old_fb != fb) {
+ stw_framebuffer_reference_locked(fb);
+ ctx->current_framebuffer = fb;
+ }
+ stw_framebuffer_unlock(fb);
-fail:
+ if (hReadDC) {
+ if (hReadDC == hDrawDC) {
+ fbRead = fb;
+ }
+ else {
+ fbRead = stw_framebuffer_from_hdc( hReadDC );
+
+ if (fbRead) {
+ stw_framebuffer_update(fbRead);
+ }
+ else {
+ /* Applications should call SetPixelFormat before creating a
+ * context, but not all do, and the opengl32 runtime seems to
+ * use a default pixel format in some cases, so we must create
+ * a framebuffer for those here.
+ */
+ int iPixelFormat = GetPixelFormat(hReadDC);
+ if (iPixelFormat)
+ fbRead = stw_framebuffer_create( hReadDC, iPixelFormat );
+ if (!fbRead)
+ goto fail;
+ }
+
+ if (fbRead->iPixelFormat != ctx->iPixelFormat) {
+ stw_framebuffer_unlock(fbRead);
+ SetLastError(ERROR_INVALID_PIXEL_FORMAT);
+ goto fail;
+ }
+ stw_framebuffer_unlock(fbRead);
+ }
+ ret = stw_dev->stapi->make_current(stw_dev->stapi, ctx->st,
+ fb->stfb, fbRead->stfb);
+ }
+ else {
+ /* Note: when we call this function we will wind up in the
+ * stw_st_framebuffer_validate_locked() function which will incur
+ * a recursive fb->mutex lock.
+ */
+ ret = stw_dev->stapi->make_current(stw_dev->stapi, ctx->st,
+ fb->stfb, fb->stfb);
+ }
- if (fb) {
- stw_framebuffer_release(fb);
- }
+ if (old_fb && old_fb != fb) {
+ stw_lock_framebuffers(stw_dev);
+ stw_framebuffer_lock(old_fb);
+ stw_framebuffer_release_locked(old_fb);
+ stw_unlock_framebuffers(stw_dev);
+ }
- /* On failure, make the thread's current rendering context not current
- * before returning.
- */
- if (!ret) {
- stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
- ctx = NULL;
+fail:
+ if (fb) {
+ /* fb must be unlocked at this point. */
+ assert(!stw_own_mutex(&fb->mutex));
+ }
+
+ /* On failure, make the thread's current rendering context not current
+ * before returning.
+ */
+ if (!ret) {
+ stw_make_current(NULL, NULL, 0);
+ }
+ } else {
+ ret = stw_dev->stapi->make_current(stw_dev->stapi, NULL, NULL, NULL);
}
/* Unreference the previous framebuffer if any. It must be done after
* make_current, as it can be referenced inside.
*/
- if (curctx && curctx != ctx) {
- stw_framebuffer_reference(&curctx->current_framebuffer, NULL);
+ if (old_ctx && old_ctx != ctx) {
+ struct stw_framebuffer *old_fb = old_ctx->current_framebuffer;
+ if (old_fb) {
+ old_ctx->current_framebuffer = NULL;
+ stw_lock_framebuffers(stw_dev);
+ stw_framebuffer_lock(old_fb);
+ stw_framebuffer_release_locked(old_fb);
+ stw_unlock_framebuffers(stw_dev);
+ }
}
return ret;
{
PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
- if (!stw_make_current(hdc, dhglrc))
+ if (!stw_make_current(hdc, hdc, dhglrc))
r = NULL;
return r;
projects / mesa.git / blobdiff