/**
* We should call this periodically from a function such as glXMakeCurrent
* in order to test if multiple threads are being used.
*/
void
_glapi_check_multithread(void)
{
#if defined(THREADS) && !defined(GLX_USE_TLS)
static unsigned long knownID;
static GLboolean firstCall = GL_TRUE;
if (ThreadSafe)
return;
CHECK_MULTITHREAD_LOCK();
if (firstCall) {
/* initialize TSDs */
(void) _glthread_GetTSD(&ContextTSD);
(void) _glthread_GetTSD(&_gl_DispatchTSD);
knownID = _glthread_GetID();
firstCall = GL_FALSE;
}
else if (knownID != _glthread_GetID()) {
ThreadSafe = GL_TRUE;
_glapi_set_dispatch(NULL);
_glapi_set_context(NULL);
}
CHECK_MULTITHREAD_UNLOCK();
#endif
}
/**
* Called via glBegin.
*/
static void GLAPIENTRY vbo_exec_Begin( GLenum mode )
{
GET_CURRENT_CONTEXT( ctx );
struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
int i;
if (_mesa_inside_begin_end(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glBegin");
return;
}
if (!_mesa_valid_prim_mode(ctx, mode, "glBegin")) {
return;
}
vbo_draw_method(vbo_context(ctx), DRAW_BEGIN_END);
if (ctx->NewState) {
_mesa_update_state( ctx );
CALL_Begin(ctx->Exec, (mode));
return;
}
if (!_mesa_valid_to_render(ctx, "glBegin")) {
return;
}
/* Heuristic: attempt to isolate attributes occurring outside
* begin/end pairs.
*/
if (exec->vtx.vertex_size && !exec->vtx.attrsz[0])
vbo_exec_FlushVertices_internal(exec, GL_FALSE);
i = exec->vtx.prim_count++;
exec->vtx.prim[i].mode = mode;
exec->vtx.prim[i].begin = 1;
exec->vtx.prim[i].end = 0;
exec->vtx.prim[i].indexed = 0;
exec->vtx.prim[i].weak = 0;
exec->vtx.prim[i].pad = 0;
exec->vtx.prim[i].start = exec->vtx.vert_count;
exec->vtx.prim[i].count = 0;
exec->vtx.prim[i].num_instances = 1;
exec->vtx.prim[i].base_instance = 0;
exec->vtx.prim[i].is_indirect = 0;
ctx->Driver.CurrentExecPrimitive = mode;
ctx->Exec = ctx->BeginEnd;
/* We may have been called from a display list, in which case we should
* leave dlist.c's dispatch table in place.
*/
if (ctx->CurrentDispatch == ctx->OutsideBeginEnd) {
ctx->CurrentDispatch = ctx->BeginEnd;
_glapi_set_dispatch(ctx->CurrentDispatch);
} else {
assert(ctx->CurrentDispatch == ctx->Save);
}
}
static int
indirect_bind_context(struct glx_context *gc, struct glx_context *old,
GLXDrawable draw, GLXDrawable read)
{
GLXContextTag tag;
__GLXattribute *state;
Display *dpy = gc->psc->dpy;
int opcode = __glXSetupForCommand(dpy);
Bool sent;
if (old != &dummyContext && !old->isDirect && old->psc->dpy == dpy) {
tag = old->currentContextTag;
old->currentContextTag = 0;
} else {
tag = 0;
}
sent = SendMakeCurrentRequest(dpy, opcode, gc->xid, tag, draw, read,
&gc->currentContextTag);
if (!IndirectAPI)
IndirectAPI = __glXNewIndirectAPI();
_glapi_set_dispatch(IndirectAPI);
state = gc->client_state_private;
if (state->array_state == NULL) {
glGetString(GL_EXTENSIONS);
glGetString(GL_VERSION);
__glXInitVertexArrayState(gc);
}
return !sent;
}
/**
* Called via glEnd.
*/
static void GLAPIENTRY
vbo_exec_End(void)
{
GET_CURRENT_CONTEXT(ctx);
struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
if (!_mesa_inside_begin_end(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glEnd");
return;
}
ctx->Exec = ctx->OutsideBeginEnd;
if (ctx->CurrentClientDispatch == ctx->BeginEnd) {
ctx->CurrentClientDispatch = ctx->OutsideBeginEnd;
_glapi_set_dispatch(ctx->CurrentClientDispatch);
}
if (exec->vtx.prim_count > 0) {
/* close off current primitive */
struct _mesa_prim *last_prim = &exec->vtx.prim[exec->vtx.prim_count - 1];
last_prim->end = 1;
last_prim->count = exec->vtx.vert_count - last_prim->start;
/* Special handling for GL_LINE_LOOP */
if (last_prim->mode == GL_LINE_LOOP && last_prim->begin == 0) {
/* We're finishing drawing a line loop. Append 0th vertex onto
* end of vertex buffer so we can draw it as a line strip.
*/
const fi_type *src = exec->vtx.buffer_map +
last_prim->start * exec->vtx.vertex_size;
fi_type *dst = exec->vtx.buffer_map +
exec->vtx.vert_count * exec->vtx.vertex_size;
/* copy 0th vertex to end of buffer */
memcpy(dst, src, exec->vtx.vertex_size * sizeof(fi_type));
last_prim->start++; /* skip vertex0 */
/* note that last_prim->count stays unchanged */
last_prim->mode = GL_LINE_STRIP;
/* Increment the vertex count so the next primitive doesn't
* overwrite the last vertex which we just added.
*/
exec->vtx.vert_count++;
exec->vtx.buffer_ptr += exec->vtx.vertex_size;
}
try_vbo_merge(exec);
}
ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
if (exec->vtx.prim_count == VBO_MAX_PRIM)
vbo_exec_vtx_flush(exec, GL_FALSE);
if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
_mesa_flush(ctx);
}
}
_X_HIDDEN void
__glXSetCurrentContextNull(void)
{
__glXSetCurrentContext(&dummyContext);
#if defined(GLX_DIRECT_RENDERING)
_glapi_set_dispatch(NULL); /* no-op functions */
_glapi_set_context(NULL);
#endif
}
_X_HIDDEN void
__glXSetCurrentContextNull(void)
{
__glXSetCurrentContext(&dummyContext);
#ifndef GLX_USE_APPLEGL
#ifdef GLX_DIRECT_RENDERING
_glapi_set_dispatch(NULL); /* no-op functions */
#endif
#endif
}
void apple_glapi_set_dispatch(void) {
if(__applegl_api) {
_glapi_set_dispatch(__applegl_api);
return;
}
__ogl_framework_api = _glapi_create_table_from_handle(apple_cgl_get_dl_handle(), "gl");
assert(__ogl_framework_api);
__applegl_api = malloc(sizeof(struct _glapi_table));
assert(__applegl_api);
memcpy(__applegl_api, __ogl_framework_api, sizeof(struct _glapi_table));
SET_ReadPixels(__applegl_api, __applegl_glReadPixels);
SET_CopyPixels(__applegl_api, __applegl_glCopyPixels);
SET_CopyColorTable(__applegl_api, __applegl_glCopyColorTable);
SET_DrawBuffer(__applegl_api, __applegl_glDrawBuffer);
SET_DrawBuffersARB(__applegl_api, __applegl_glDrawBuffersARB);
SET_Viewport(__applegl_api, __applegl_glViewport);
_glapi_set_dispatch(__applegl_api);
}
/**
* We should call this periodically from a function such as glXMakeCurrent
* in order to test if multiple threads are being used.
*/
void
_glapi_check_multithread(void)
{
#if defined(THREADS) && !defined(GLX_USE_TLS)
if (!ThreadSafe) {
static unsigned long knownID;
static GLboolean firstCall = GL_TRUE;
if (firstCall) {
knownID = _glthread_GetID();
firstCall = GL_FALSE;
}
else if (knownID != _glthread_GetID()) {
ThreadSafe = GL_TRUE;
_glapi_set_dispatch(NULL);
_glapi_set_context(NULL);
}
}
else if (!_glapi_get_dispatch()) {
/* make sure that this thread's dispatch pointer isn't null */
_glapi_set_dispatch(NULL);
}
#endif
}
static void
vboxPatchMesaGLAPITable()
{
void *pGLTable;
pGLTable = (void *)_glapi_get_dispatch();
vbox_glapi_table = crAlloc(_glapi_get_dispatch_table_size() * sizeof (void *));
if (!vbox_glapi_table)
{
crError("Not enough memory to allocate dispatch table");
}
crMemcpy(vbox_glapi_table, pGLTable, _glapi_get_dispatch_table_size() * sizeof (void *));
#include "fakedri_glfuncsList.h"
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glBlendEquationSeparateEXT", cr_glBlendEquationSeparate);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glSampleMaskSGIS", cr_glSampleMaskEXT);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glSamplePatternSGIS", cr_glSamplePatternEXT);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2dMESA", cr_glWindowPos2d);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2dvMESA", cr_glWindowPos2dv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2fMESA", cr_glWindowPos2f);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2fvMESA", cr_glWindowPos2fv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2iMESA", cr_glWindowPos2i);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2ivMESA", cr_glWindowPos2iv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2sMESA", cr_glWindowPos2s);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos2svMESA", cr_glWindowPos2sv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3dMESA", cr_glWindowPos3d);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3dvMESA", cr_glWindowPos3dv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3fMESA", cr_glWindowPos3f);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3fvMESA", cr_glWindowPos3fv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3iMESA", cr_glWindowPos3i);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3ivMESA", cr_glWindowPos3iv);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3sMESA", cr_glWindowPos3s);
VBOX_SET_MESA_FUNC(vbox_glapi_table, "glWindowPos3svMESA", cr_glWindowPos3sv);
_glapi_set_dispatch(vbox_glapi_table);
};
static int
indirect_bind_context(struct glx_context *gc, struct glx_context *old,
GLXDrawable draw, GLXDrawable read)
{
GLXContextTag tag;
Display *dpy = gc->psc->dpy;
Bool sent;
if (old != &dummyContext && !old->isDirect && old->psc->dpy == dpy) {
tag = old->currentContextTag;
old->currentContextTag = 0;
} else {
tag = 0;
}
sent = SendMakeCurrentRequest(dpy, gc->xid, tag, draw, read,
&gc->currentContextTag);
if (!IndirectAPI)
IndirectAPI = __glXNewIndirectAPI();
_glapi_set_dispatch(IndirectAPI);
return !sent;
}
/**
* Called via glEnd.
*/
static void GLAPIENTRY vbo_exec_End( void )
{
GET_CURRENT_CONTEXT( ctx );
struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
if (!_mesa_inside_begin_end(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glEnd");
return;
}
ctx->Exec = ctx->OutsideBeginEnd;
if (ctx->CurrentDispatch == ctx->BeginEnd) {
ctx->CurrentDispatch = ctx->OutsideBeginEnd;
_glapi_set_dispatch(ctx->CurrentDispatch);
}
if (exec->vtx.prim_count > 0) {
/* close off current primitive */
int idx = exec->vtx.vert_count;
int i = exec->vtx.prim_count - 1;
exec->vtx.prim[i].end = 1;
exec->vtx.prim[i].count = idx - exec->vtx.prim[i].start;
try_vbo_merge(exec);
}
ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;
if (exec->vtx.prim_count == VBO_MAX_PRIM)
vbo_exec_vtx_flush( exec, GL_FALSE );
if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) {
_mesa_flush(ctx);
}
}
void apple_glapi_set_dispatch(void) {
_apple_glapi_create_table();
_glapi_set_dispatch(__applegl_api);
}
status_t
BGLDispatcher::SetTable(struct _glapi_table* table)
{
_glapi_set_dispatch(table);
return B_OK;
}
/**
* Insert the active immediate struct onto the display list currently
* being built.
*/
static void
_save_compile_vertex_list(struct gl_context *ctx)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
struct vbo_save_vertex_list *node;
/* Allocate space for this structure in the display list currently
* being compiled.
*/
node = (struct vbo_save_vertex_list *)
_mesa_dlist_alloc(ctx, save->opcode_vertex_list, sizeof(*node));
if (!node)
return;
/* Duplicate our template, increment refcounts to the storage structs:
*/
memcpy(node->attrsz, save->attrsz, sizeof(node->attrsz));
node->vertex_size = save->vertex_size;
node->buffer_offset =
(save->buffer - save->vertex_store->buffer) * sizeof(GLfloat);
node->count = save->vert_count;
node->wrap_count = save->copied.nr;
node->dangling_attr_ref = save->dangling_attr_ref;
node->prim = save->prim;
node->prim_count = save->prim_count;
node->vertex_store = save->vertex_store;
node->prim_store = save->prim_store;
node->vertex_store->refcount++;
node->prim_store->refcount++;
if (node->prim[0].no_current_update) {
node->current_size = 0;
node->current_data = NULL;
}
else {
node->current_size = node->vertex_size - node->attrsz[0];
node->current_data = NULL;
if (node->current_size) {
/* If the malloc fails, we just pull the data out of the VBO
* later instead.
*/
node->current_data = MALLOC(node->current_size * sizeof(GLfloat));
if (node->current_data) {
const char *buffer = (const char *) save->vertex_store->buffer;
unsigned attr_offset = node->attrsz[0] * sizeof(GLfloat);
unsigned vertex_offset = 0;
if (node->count)
vertex_offset =
(node->count - 1) * node->vertex_size * sizeof(GLfloat);
memcpy(node->current_data,
buffer + node->buffer_offset + vertex_offset + attr_offset,
node->current_size * sizeof(GLfloat));
}
}
}
assert(node->attrsz[VBO_ATTRIB_POS] != 0 || node->count == 0);
if (save->dangling_attr_ref)
ctx->ListState.CurrentList->Flags |= DLIST_DANGLING_REFS;
save->vertex_store->used += save->vertex_size * node->count;
save->prim_store->used += node->prim_count;
/* Copy duplicated vertices
*/
save->copied.nr = _save_copy_vertices(ctx, node, save->buffer);
/* Deal with GL_COMPILE_AND_EXECUTE:
*/
if (ctx->ExecuteFlag) {
struct _glapi_table *dispatch = GET_DISPATCH();
_glapi_set_dispatch(ctx->Exec);
vbo_loopback_vertex_list(ctx,
(const GLfloat *) ((const char *) save->
vertex_store->buffer +
node->buffer_offset),
node->attrsz, node->prim, node->prim_count,
node->wrap_count, node->vertex_size);
_glapi_set_dispatch(dispatch);
}
/* Decide whether the storage structs are full, or can be used for
* the next vertex lists as well.
*/
if (save->vertex_store->used >
VBO_SAVE_BUFFER_SIZE - 16 * (save->vertex_size + 4)) {
/* Unmap old store:
*/
vbo_save_unmap_vertex_store(ctx, save->vertex_store);
/* Release old reference:
*/
save->vertex_store->refcount--;
assert(save->vertex_store->refcount != 0);
save->vertex_store = NULL;
/* Allocate and map new store:
*/
save->vertex_store = alloc_vertex_store(ctx);
save->buffer_ptr = vbo_save_map_vertex_store(ctx, save->vertex_store);
save->out_of_memory = save->buffer_ptr == NULL;
}
if (save->prim_store->used > VBO_SAVE_PRIM_SIZE - 6) {
save->prim_store->refcount--;
assert(save->prim_store->refcount != 0);
save->prim_store = alloc_prim_store(ctx);
}
/* Reset our structures for the next run of vertices:
*/
_save_reset_counters(ctx);
}
/**
* Bind the given context to the given drawBuffer and readBuffer and
* make it the current context for the calling thread.
* We'll render into the drawBuffer and read pixels from the
* readBuffer (i.e. glRead/CopyPixels, glCopyTexImage, etc).
*
* We check that the context's and framebuffer's visuals are compatible
* and return immediately if they're not.
*
* \param newCtx the new GL context. If NULL then there will be no current GL
* context.
* \param drawBuffer the drawing framebuffer
* \param readBuffer the reading framebuffer
*/
GLboolean
_mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
GLframebuffer *readBuffer )
{
if (MESA_VERBOSE & VERBOSE_API)
_mesa_debug(newCtx, "_mesa_make_current()\n");
/* Check that the context's and framebuffer's visuals are compatible.
*/
if (newCtx && drawBuffer && newCtx->WinSysDrawBuffer != drawBuffer) {
if (!check_compatible(newCtx, drawBuffer)) {
_mesa_warning(newCtx,
"MakeCurrent: incompatible visuals for context and drawbuffer");
return GL_FALSE;
}
}
if (newCtx && readBuffer && newCtx->WinSysReadBuffer != readBuffer) {
if (!check_compatible(newCtx, readBuffer)) {
_mesa_warning(newCtx,
"MakeCurrent: incompatible visuals for context and readbuffer");
return GL_FALSE;
}
}
/* We used to call _glapi_check_multithread() here. Now do it in drivers */
_glapi_set_context((void *) newCtx);
ASSERT(_mesa_get_current_context() == newCtx);
if (!newCtx) {
_glapi_set_dispatch(NULL); /* none current */
}
else {
_glapi_set_dispatch(newCtx->CurrentDispatch);
if (drawBuffer && readBuffer) {
/* TODO: check if newCtx and buffer's visual match??? */
ASSERT(drawBuffer->Name == 0);
ASSERT(readBuffer->Name == 0);
_mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer);
_mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer);
/*
* Only set the context's Draw/ReadBuffer fields if they're NULL
* or not bound to a user-created FBO.
*/
if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
/* KW: merge conflict here, revisit.
*/
/* fix up the fb fields - these will end up wrong otherwise
* if the DRIdrawable changes, and everything relies on them.
* This is a bit messy (same as needed in _mesa_BindFramebufferEXT)
*/
unsigned int i;
GLenum buffers[MAX_DRAW_BUFFERS];
_mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {
buffers[i] = newCtx->Color.DrawBuffer[i];
}
_mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, buffers, NULL);
}
if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
_mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
}
/* XXX only set this flag if we're really changing the draw/read
* framebuffer bindings.
*/
newCtx->NewState |= _NEW_BUFFERS;
#if 1
/* We want to get rid of these lines: */
#if _HAVE_FULL_GL
if (!drawBuffer->Initialized) {
initialize_framebuffer_size(newCtx, drawBuffer);
}
if (readBuffer != drawBuffer && !readBuffer->Initialized) {
initialize_framebuffer_size(newCtx, readBuffer);
}
_mesa_resizebuffers(newCtx);
#endif
#else
/* We want the drawBuffer and readBuffer to be initialized by
* the driver.
* This generally means the Width and Height match the actual
* window size and the renderbuffers (both hardware and software
* based) are allocated to match. The later can generally be
* done with a call to _mesa_resize_framebuffer().
*
* It's theoretically possible for a buffer to have zero width
* or height, but for now, assert check that the driver did what's
* expected of it.
*/
ASSERT(drawBuffer->Width > 0);
ASSERT(drawBuffer->Height > 0);
#endif
if (drawBuffer) {
_mesa_check_init_viewport(newCtx,
drawBuffer->Width, drawBuffer->Height);
}
}
if (newCtx->FirstTimeCurrent) {
check_context_limits(newCtx);
/* We can use this to help debug user's problems. Tell them to set
* the MESA_INFO env variable before running their app. Then the
* first time each context is made current we'll print some useful
* information.
*/
if (_mesa_getenv("MESA_INFO")) {
_mesa_print_info();
}
newCtx->FirstTimeCurrent = GL_FALSE;
}
}
return GL_TRUE;
}
/* Insert the active immediate struct onto the display list currently
* being built.
*/
static void _save_compile_vertex_list( GLcontext *ctx )
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
struct vbo_save_vertex_list *node;
/* Allocate space for this structure in the display list currently
* being compiled.
*/
node = (struct vbo_save_vertex_list *)
_mesa_alloc_instruction(ctx, save->opcode_vertex_list, sizeof(*node));
if (!node)
return;
/* Duplicate our template, increment refcounts to the storage structs:
*/
_mesa_memcpy(node->attrsz, save->attrsz, sizeof(node->attrsz));
node->vertex_size = save->vertex_size;
node->buffer_offset = (save->buffer - save->vertex_store->buffer) * sizeof(GLfloat);
node->count = save->vert_count;
node->wrap_count = save->copied.nr;
node->dangling_attr_ref = save->dangling_attr_ref;
node->prim = save->prim;
node->prim_count = save->prim_count;
node->vertex_store = save->vertex_store;
node->prim_store = save->prim_store;
node->vertex_store->refcount++;
node->prim_store->refcount++;
assert(node->attrsz[VBO_ATTRIB_POS] != 0 ||
node->count == 0);
if (save->dangling_attr_ref)
ctx->ListState.CurrentList->flags |= MESA_DLIST_DANGLING_REFS;
save->vertex_store->used += save->vertex_size * node->count;
save->prim_store->used += node->prim_count;
/* Copy duplicated vertices
*/
save->copied.nr = _save_copy_vertices( ctx, node, save->buffer );
/* Deal with GL_COMPILE_AND_EXECUTE:
*/
if (ctx->ExecuteFlag) {
struct _glapi_table *dispatch = GET_DISPATCH();
_glapi_set_dispatch(ctx->Exec);
vbo_loopback_vertex_list( ctx,
(const GLfloat *)((const char *)save->vertex_store->buffer +
node->buffer_offset),
node->attrsz,
node->prim,
node->prim_count,
node->wrap_count,
node->vertex_size);
_glapi_set_dispatch(dispatch);
}
/* Decide whether the storage structs are full, or can be used for
* the next vertex lists as well.
*/
if (save->vertex_store->used >
VBO_SAVE_BUFFER_SIZE - 16 * (save->vertex_size + 4)) {
/* Unmap old store:
*/
unmap_vertex_store( ctx, save->vertex_store );
/* Release old reference:
*/
save->vertex_store->refcount--;
assert(save->vertex_store->refcount != 0);
save->vertex_store = NULL;
/* Allocate and map new store:
*/
save->vertex_store = alloc_vertex_store( ctx );
save->vbptr = map_vertex_store( ctx, save->vertex_store );
}
if (save->prim_store->used > VBO_SAVE_PRIM_SIZE - 6) {
save->prim_store->refcount--;
assert(save->prim_store->refcount != 0);
save->prim_store = alloc_prim_store( ctx );
}
/* Reset our structures for the next run of vertices:
*/
_save_reset_counters( ctx );
}
/**
* Make a particular context current.
*
* \note This is in this file so that it can access dummyContext.
*/
static Bool
MakeContextCurrent(Display * dpy, GLXDrawable draw,
GLXDrawable read, GLXContext gc)
{
const GLXContext oldGC = __glXGetCurrentContext();
#ifdef GLX_USE_APPLEGL
bool error = apple_glx_make_current_context(dpy,
(oldGC && oldGC != &dummyContext) ? oldGC->apple : NULL,
gc ? gc->apple : NULL, draw);
apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
if(error)
return GL_FALSE;
#else
xGLXMakeCurrentReply reply;
const CARD8 opcode = __glXSetupForCommand(dpy);
const CARD8 oldOpcode = ((gc == oldGC) || (oldGC == &dummyContext))
? opcode : __glXSetupForCommand(oldGC->currentDpy);
Bool bindReturnValue;
__GLXattribute *state;
if (!opcode || !oldOpcode) {
return GL_FALSE;
}
/* Make sure that the new context has a nonzero ID. In the request,
* a zero context ID is used only to mean that we bind to no current
* context.
*/
if ((gc != NULL) && (gc->xid == None)) {
return GL_FALSE;
}
if (gc == NULL && (draw != None || read != None)) {
__glXGenerateError(dpy, gc, (draw != None) ? draw : read,
BadMatch, X_GLXMakeContextCurrent);
return False;
}
if (gc != NULL && (draw == None || read == None)) {
__glXGenerateError(dpy, gc, None, BadMatch, X_GLXMakeContextCurrent);
return False;
}
_glapi_check_multithread();
if (gc != NULL && gc->thread_id != 0 && gc->thread_id != _glthread_GetID()) {
__glXGenerateError(dpy, gc, gc->xid,
BadAccess, X_GLXMakeContextCurrent);
return False;
}
#ifdef GLX_DIRECT_RENDERING
/* Bind the direct rendering context to the drawable */
if (gc && gc->driContext) {
__GLXDRIdrawable *pdraw = FetchDRIDrawable(dpy, draw, gc);
__GLXDRIdrawable *pread = FetchDRIDrawable(dpy, read, gc);
if ((pdraw == NULL) || (pread == NULL)) {
__glXGenerateError(dpy, gc, (pdraw == NULL) ? draw : read,
GLXBadDrawable, X_GLXMakeContextCurrent);
return False;
}
bindReturnValue =
(gc->driContext->bindContext) (gc->driContext, pdraw, pread);
}
else if (!gc && oldGC && oldGC->driContext) {
bindReturnValue = True;
}
else
#endif
{
/* Send a glXMakeCurrent request to bind the new context. */
bindReturnValue =
SendMakeCurrentRequest(dpy, opcode, gc ? gc->xid : None,
((dpy != oldGC->currentDpy)
|| oldGC->isDirect)
? None : oldGC->currentContextTag, draw, read,
&reply);
}
if (!bindReturnValue) {
return False;
}
#ifdef GLX_DIRECT_RENDERING
if ((dpy != oldGC->currentDpy || (gc && gc->driContext)) &&
!oldGC->isDirect && oldGC != &dummyContext) {
#else
if ((dpy != oldGC->currentDpy) && oldGC != &dummyContext) {
#endif
xGLXMakeCurrentReply dummy_reply;
/* We are either switching from one dpy to another and have to
* send a request to the previous dpy to unbind the previous
* context, or we are switching away from a indirect context to
* a direct context and have to send a request to the dpy to
* unbind the previous context.
*/
(void) SendMakeCurrentRequest(oldGC->currentDpy, oldOpcode, None,
oldGC->currentContextTag, None, None,
&dummy_reply);
}
#ifdef GLX_DIRECT_RENDERING
else if (oldGC->driContext && oldGC != gc) {
oldGC->driContext->unbindContext(oldGC->driContext);
}
#endif
#endif /* GLX_USE_APPLEGL */
/* Update our notion of what is current */
__glXLock();
if (gc == oldGC) {
/* Even though the contexts are the same the drawable might have
* changed. Note that gc cannot be the dummy, and that oldGC
* cannot be NULL, therefore if they are the same, gc is not
* NULL and not the dummy.
*/
if(gc) {
gc->currentDrawable = draw;
gc->currentReadable = read;
}
}
else {
if (oldGC != &dummyContext) {
/* Old current context is no longer current to anybody */
oldGC->currentDpy = 0;
oldGC->currentDrawable = None;
oldGC->currentReadable = None;
oldGC->currentContextTag = 0;
oldGC->thread_id = 0;
#ifdef GLX_USE_APPLEGL
/*
* At this point we should check if the context has been
* through glXDestroyContext, and redestroy it if so.
*/
if(oldGC->do_destroy) {
__glXUnlock();
/* glXDestroyContext uses the same global lock. */
glXDestroyContext(dpy, oldGC);
__glXLock();
#else
if (oldGC->xid == None) {
/* We are switching away from a context that was
* previously destroyed, so we need to free the memory
* for the old handle.
*/
#ifdef GLX_DIRECT_RENDERING
/* Destroy the old direct rendering context */
if (oldGC->driContext) {
oldGC->driContext->destroyContext(oldGC->driContext,
oldGC->psc,
oldGC->createDpy);
oldGC->driContext = NULL;
}
#endif
__glXFreeContext(oldGC);
#endif /* GLX_USE_APPLEGL */
}
}
if (gc) {
__glXSetCurrentContext(gc);
gc->currentDpy = dpy;
gc->currentDrawable = draw;
gc->currentReadable = read;
#ifndef GLX_USE_APPLEGL
gc->thread_id = _glthread_GetID();
#ifdef GLX_DIRECT_RENDERING
if (!gc->driContext) {
#endif
if (!IndirectAPI)
IndirectAPI = __glXNewIndirectAPI();
_glapi_set_dispatch(IndirectAPI);
#ifdef GLX_USE_APPLEGL
do {
extern void XAppleDRIUseIndirectDispatch(void);
XAppleDRIUseIndirectDispatch();
} while (0);
#endif
state = (__GLXattribute *) (gc->client_state_private);
gc->currentContextTag = reply.contextTag;
if (state->array_state == NULL) {
(void) glGetString(GL_EXTENSIONS);
(void) glGetString(GL_VERSION);
__glXInitVertexArrayState(gc);
}
#ifdef GLX_DIRECT_RENDERING
}
else {
gc->currentContextTag = -1;
}
#endif
#endif /* GLX_USE_APPLEGL */
}
else {
__glXSetCurrentContextNull();
}
}
__glXUnlock();
return GL_TRUE;
}
PUBLIC Bool
glXMakeCurrent(Display * dpy, GLXDrawable draw, GLXContext gc)
{
return MakeContextCurrent(dpy, draw, draw, gc);
}
PUBLIC
GLX_ALIAS(Bool, glXMakeCurrentReadSGI,
(Display * dpy, GLXDrawable d, GLXDrawable r, GLXContext ctx),
(dpy, d, r, ctx), MakeContextCurrent)
PUBLIC
GLX_ALIAS(Bool, glXMakeContextCurrent,
(Display * dpy, GLXDrawable d, GLXDrawable r,
GLXContext ctx), (dpy, d, r, ctx), MakeContextCurrent)
