static void GLAPIENTRY
_save_End(void)
{
GET_CURRENT_CONTEXT(ctx);
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLint i = save->prim_count - 1;
ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
save->prim[i].end = 1;
save->prim[i].count = (save->vert_count - save->prim[i].start);
if (i == (GLint) save->prim_max - 1) {
_save_compile_vertex_list(ctx);
assert(save->copied.nr == 0);
}
/* Swap out this vertex format while outside begin/end. Any color,
* etc. received between here and the next begin will be compiled
* as opcodes.
*/
if (save->out_of_memory) {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
}
else {
_mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
}
}
/* Cope with EvalCoord/CallList called within a begin/end object:
* -- Flush current buffer
* -- Fallback to opcodes for the rest of the begin/end object.
*/
static void
dlist_fallback(struct gl_context *ctx)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
if (save->vert_count || save->prim_count) {
if (save->prim_count > 0) {
/* Close off in-progress primitive. */
GLint i = save->prim_count - 1;
save->prim[i].count = save->vert_count - save->prim[i].start;
}
/* Need to replay this display list with loopback,
* unfortunately, otherwise this primitive won't be handled
* properly:
*/
save->dangling_attr_ref = 1;
_save_compile_vertex_list(ctx);
}
_save_copy_to_current(ctx);
_save_reset_vertex(ctx);
_save_reset_counters(ctx);
if (save->out_of_memory) {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
}
else {
_mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
}
ctx->Driver.SaveNeedFlush = 0;
}
/* This begin is hooked into ... Updating of
* ctx->Driver.CurrentSavePrimitive is already taken care of.
*/
GLboolean
vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLuint i = save->prim_count++;
assert(i < save->prim_max);
save->prim[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
save->prim[i].begin = 1;
save->prim[i].end = 0;
save->prim[i].weak = (mode & VBO_SAVE_PRIM_WEAK) ? 1 : 0;
save->prim[i].no_current_update =
(mode & VBO_SAVE_PRIM_NO_CURRENT_UPDATE) ? 1 : 0;
save->prim[i].pad = 0;
save->prim[i].start = save->vert_count;
save->prim[i].count = 0;
save->prim[i].num_instances = 1;
if (save->out_of_memory) {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
}
else {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
}
ctx->Driver.SaveNeedFlush = 1;
return GL_TRUE;
}
/**
* Called via ctx->Driver.NotifySaveBegin() when a glBegin is getting
* compiled into a display list.
* Updating of ctx->Driver.CurrentSavePrimitive is already taken care of.
*/
GLboolean
vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
const GLuint i = save->prim_count++;
assert(i < save->prim_max);
save->prim[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
save->prim[i].begin = 1;
save->prim[i].end = 0;
save->prim[i].weak = (mode & VBO_SAVE_PRIM_WEAK) ? 1 : 0;
save->prim[i].no_current_update =
(mode & VBO_SAVE_PRIM_NO_CURRENT_UPDATE) ? 1 : 0;
save->prim[i].pad = 0;
save->prim[i].start = save->vert_count;
save->prim[i].count = 0;
save->prim[i].num_instances = 1;
save->prim[i].base_instance = 0;
if (save->out_of_memory) {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
}
else {
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt);
}
/* We need to call SaveFlushVertices() if there's state change */
ctx->Driver.SaveNeedFlush = GL_TRUE;
/* GL_TRUE means we've handled this glBegin here; don't compile a BEGIN
* opcode into the display list.
*/
return GL_TRUE;
}
/**
* Initialize the display list compiler
*/
void vbo_save_api_init( struct vbo_save_context *save )
{
GLcontext *ctx = save->ctx;
GLuint i;
save->opcode_vertex_list =
_mesa_alloc_opcode( ctx,
sizeof(struct vbo_save_vertex_list),
vbo_save_playback_vertex_list,
vbo_destroy_vertex_list,
vbo_print_vertex_list );
ctx->Driver.NotifySaveBegin = vbo_save_NotifyBegin;
_save_vtxfmt_init( ctx );
_save_current_init( ctx );
/* These will actually get set again when binding/drawing */
for (i = 0; i < VBO_ATTRIB_MAX; i++)
save->inputs[i] = &save->arrays[i];
/* Hook our array functions into the outside-begin-end vtxfmt in
* ctx->ListState.
*/
ctx->ListState.ListVtxfmt.Rectf = _save_OBE_Rectf;
ctx->ListState.ListVtxfmt.DrawArrays = _save_OBE_DrawArrays;
ctx->ListState.ListVtxfmt.DrawElements = _save_OBE_DrawElements;
ctx->ListState.ListVtxfmt.DrawRangeElements = _save_OBE_DrawRangeElements;
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
}
void vbo_save_EndList( GLcontext *ctx )
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
/* EndList called inside a (saved) Begin/End pair?
*/
if (ctx->Driver.CurrentSavePrimitive != PRIM_OUTSIDE_BEGIN_END) {
if (save->prim_count > 0) {
GLint i = save->prim_count - 1;
ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
save->prim[i].end = 0;
save->prim[i].count = (save->vert_count -
save->prim[i].start);
}
/* Make sure this vertex list gets replayed by the "loopback"
* mechanism:
*/
save->dangling_attr_ref = 1;
vbo_save_SaveFlushVertices( ctx );
/* Swap out this vertex format while outside begin/end. Any color,
* etc. received between here and the next begin will be compiled
* as opcodes.
*/
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
}
unmap_vertex_store( ctx, save->vertex_store );
assert(save->vertex_size == 0);
}
/**
* Initialize the display list compiler
*/
void _tnl_save_init( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct tnl_vertex_arrays *tmp = &tnl->save_inputs;
GLuint i;
for (i = 0; i < _TNL_ATTRIB_MAX; i++)
_mesa_vector4f_init( &tmp->Attribs[i], 0, 0);
tnl->save.opcode_vertex_list =
_mesa_alloc_opcode( ctx,
sizeof(struct tnl_vertex_list),
_tnl_playback_vertex_list,
_tnl_destroy_vertex_list,
_tnl_print_vertex_list );
ctx->Driver.NotifySaveBegin = _save_NotifyBegin;
_save_vtxfmt_init( ctx );
_save_current_init( ctx );
/* Hook our array functions into the outside-begin-end vtxfmt in
* ctx->ListState.
*/
ctx->ListState.ListVtxfmt.Rectf = _save_OBE_Rectf;
ctx->ListState.ListVtxfmt.DrawArrays = _save_OBE_DrawArrays;
ctx->ListState.ListVtxfmt.DrawElements = _save_OBE_DrawElements;
ctx->ListState.ListVtxfmt.DrawRangeElements = _save_OBE_DrawRangeElements;
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
}
/* Cope with EvalCoord/CallList called within a begin/end object:
* -- Flush current buffer
* -- Fallback to opcodes for the rest of the begin/end object.
*/
static void DO_FALLBACK( GLcontext *ctx )
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
if (save->vert_count || save->prim_count) {
GLint i = save->prim_count - 1;
/* Close off in-progress primitive.
*/
save->prim[i].count = (save->vert_count -
save->prim[i].start);
/* Need to replay this display list with loopback,
* unfortunately, otherwise this primitive won't be handled
* properly:
*/
save->dangling_attr_ref = 1;
_save_compile_vertex_list( ctx );
}
_save_copy_to_current( ctx );
_save_reset_vertex( ctx );
_save_reset_counters( ctx );
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
ctx->Driver.SaveNeedFlush = 0;
}
void
_tnl_wakeup_save_exec( GLcontext *ctx )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
_tnl_wakeup_exec( ctx );
_mesa_install_save_vtxfmt( ctx, &tnl->save_vtxfmt );
}
/**
* Install VBO vtxfmt functions.
*
* This function depends on ctx->Version.
*/
void
_mesa_initialize_vbo_vtxfmt(struct gl_context *ctx)
{
struct vbo_exec_context *exec = &vbo_context(ctx)->exec;
_mesa_install_exec_vtxfmt(ctx, &exec->vtxfmt);
if (ctx->API == API_OPENGL_COMPAT) {
_mesa_install_save_vtxfmt(ctx, &ctx->ListState.ListVtxfmt);
}
}
/* This begin is hooked into ... Updating of
* ctx->Driver.CurrentSavePrimitive is already taken care of.
*/
GLboolean vbo_save_NotifyBegin( GLcontext *ctx, GLenum mode )
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLuint i = save->prim_count++;
assert(i < save->prim_max);
save->prim[i].mode = mode & ~VBO_SAVE_PRIM_WEAK;
save->prim[i].begin = 1;
save->prim[i].end = 0;
save->prim[i].weak = (mode & VBO_SAVE_PRIM_WEAK) ? 1 : 0;
save->prim[i].pad = 0;
save->prim[i].start = save->vert_count;
save->prim[i].count = 0;
_mesa_install_save_vtxfmt( ctx, &save->vtxfmt );
ctx->Driver.SaveNeedFlush = 1;
return GL_TRUE;
}
/* This begin is hooked into ... Updating of
* ctx->Driver.CurrentSavePrimitive is already taken care of.
*/
static GLboolean _save_NotifyBegin( GLcontext *ctx, GLenum mode )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
if (1) {
GLuint i = tnl->save.prim_count++;
assert(i < tnl->save.prim_max);
tnl->save.prim[i].mode = mode | PRIM_BEGIN;
tnl->save.prim[i].start = tnl->save.initial_counter - tnl->save.counter;
tnl->save.prim[i].count = 0;
_mesa_install_save_vtxfmt( ctx, &tnl->save_vtxfmt );
ctx->Driver.SaveNeedFlush = 1;
return GL_TRUE;
}
else
return GL_FALSE;
}
static void GLAPIENTRY _save_End( void )
{
GET_CURRENT_CONTEXT( ctx );
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLint i = tnl->save.prim_count - 1;
ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
tnl->save.prim[i].mode |= PRIM_END;
tnl->save.prim[i].count = ((tnl->save.initial_counter - tnl->save.counter) -
tnl->save.prim[i].start);
if (i == (GLint) tnl->save.prim_max - 1) {
_save_compile_vertex_list( ctx );
assert(tnl->save.copied.nr == 0);
}
/* Swap out this vertex format while outside begin/end. Any color,
* etc. received between here and the next begin will be compiled
* as opcodes.
*/
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
}
static struct vbo_save_vertex_store *
alloc_vertex_store(struct gl_context *ctx)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
struct vbo_save_vertex_store *vertex_store =
CALLOC_STRUCT(vbo_save_vertex_store);
/* obj->Name needs to be non-zero, but won't ever be examined more
* closely than that. In particular these buffers won't be entered
* into the hash and can never be confused with ones visible to the
* user. Perhaps there could be a special number for internal
* buffers:
*/
vertex_store->bufferobj = ctx->Driver.NewBufferObject(ctx,
VBO_BUF_ID,
GL_ARRAY_BUFFER_ARB);
if (vertex_store->bufferobj) {
save->out_of_memory =
!ctx->Driver.BufferData(ctx,
GL_ARRAY_BUFFER_ARB,
VBO_SAVE_BUFFER_SIZE * sizeof(GLfloat),
NULL, GL_STATIC_DRAW_ARB,
vertex_store->bufferobj);
}
else {
save->out_of_memory = GL_TRUE;
}
if (save->out_of_memory) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "internal VBO allocation");
_mesa_install_save_vtxfmt(ctx, &save->vtxfmt_noop);
}
vertex_store->buffer = NULL;
vertex_store->used = 0;
vertex_store->refcount = 1;
return vertex_store;
}
/**
* Initialize a GLcontext struct (rendering context).
*
* This includes allocating all the other structs and arrays which hang off of
* the context by pointers.
* Note that the driver needs to pass in its dd_function_table here since
* we need to at least call driverFunctions->NewTextureObject to create the
* default texture objects.
*
* Called by _mesa_create_context().
*
* Performs the imports and exports callback tables initialization, and
* miscellaneous one-time initializations. If no shared context is supplied one
* is allocated, and increase its reference count. Setups the GL API dispatch
* tables. Initialize the TNL module. Sets the maximum Z buffer depth.
* Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables
* for debug flags.
*
* \param ctx the context to initialize
* \param visual describes the visual attributes for this context
* \param share_list points to context to share textures, display lists,
* etc with, or NULL
* \param driverFunctions table of device driver functions for this context
* to use
* \param driverContext pointer to driver-specific context data
*/
GLboolean
_mesa_initialize_context(GLcontext *ctx,
const GLvisual *visual,
GLcontext *share_list,
const struct dd_function_table *driverFunctions,
void *driverContext)
{
struct gl_shared_state *shared;
/*ASSERT(driverContext);*/
assert(driverFunctions->NewTextureObject);
assert(driverFunctions->FreeTexImageData);
/* misc one-time initializations */
one_time_init(ctx);
ctx->Visual = *visual;
ctx->DrawBuffer = NULL;
ctx->ReadBuffer = NULL;
ctx->WinSysDrawBuffer = NULL;
ctx->WinSysReadBuffer = NULL;
/* Plug in driver functions and context pointer here.
* This is important because when we call alloc_shared_state() below
* we'll call ctx->Driver.NewTextureObject() to create the default
* textures.
*/
ctx->Driver = *driverFunctions;
ctx->DriverCtx = driverContext;
if (share_list) {
/* share state with another context */
shared = share_list->Shared;
}
else {
/* allocate new, unshared state */
shared = _mesa_alloc_shared_state(ctx);
if (!shared)
return GL_FALSE;
}
_glthread_LOCK_MUTEX(shared->Mutex);
ctx->Shared = shared;
shared->RefCount++;
_glthread_UNLOCK_MUTEX(shared->Mutex);
if (!init_attrib_groups( ctx )) {
_mesa_free_shared_state(ctx, ctx->Shared);
return GL_FALSE;
}
/* setup the API dispatch tables */
ctx->Exec = alloc_dispatch_table();
ctx->Save = alloc_dispatch_table();
if (!ctx->Exec || !ctx->Save) {
_mesa_free_shared_state(ctx, ctx->Shared);
if (ctx->Exec)
_mesa_free(ctx->Exec);
return GL_FALSE;
}
#if FEATURE_dispatch
_mesa_init_exec_table(ctx->Exec);
#endif
ctx->CurrentDispatch = ctx->Exec;
#if FEATURE_dlist
_mesa_init_save_table(ctx->Save);
_mesa_install_save_vtxfmt( ctx, &ctx->ListState.ListVtxfmt );
#endif
/* Neutral tnl module stuff */
_mesa_init_exec_vtxfmt( ctx );
ctx->TnlModule.Current = NULL;
ctx->TnlModule.SwapCount = 0;
ctx->FragmentProgram._MaintainTexEnvProgram
= (_mesa_getenv("MESA_TEX_PROG") != NULL);
ctx->VertexProgram._MaintainTnlProgram
= (_mesa_getenv("MESA_TNL_PROG") != NULL);
if (ctx->VertexProgram._MaintainTnlProgram) {
/* this is required... */
ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
}
#ifdef FEATURE_extra_context_init
_mesa_initialize_context_extra(ctx);
#endif
ctx->FirstTimeCurrent = GL_TRUE;
return GL_TRUE;
}