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-rw-r--r--src/mesa/main/context.c210
1 files changed, 176 insertions, 34 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 420bfa4691..bb43659063 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,4 +1,4 @@
-/* $Id: context.c,v 1.163 2002/05/27 17:04:52 brianp Exp $ */
+/* $Id: context.c,v 1.164 2002/06/13 04:28:29 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -41,7 +41,6 @@
#include "get.h"
#include "glthread.h"
#include "hash.h"
-#include "imports.h"
#include "light.h"
#include "macros.h"
#include "mem.h"
@@ -78,13 +77,19 @@ int MESA_DEBUG_FLAGS = 0;
#endif
+static void
+free_shared_state( GLcontext *ctx, struct gl_shared_state *ss );
+
/**********************************************************************/
/***** OpenGL SI-style interface (new in Mesa 3.5) *****/
/**********************************************************************/
-static GLboolean
-_mesa_DestroyContext(__GLcontext *gc)
+/* Called by window system/device driver (via gc->exports.destroyCurrent())
+ * when the rendering context is to be destroyed.
+ */
+GLboolean
+_mesa_destroyContext(__GLcontext *gc)
{
if (gc) {
_mesa_free_context_data(gc);
@@ -93,6 +98,133 @@ _mesa_DestroyContext(__GLcontext *gc)
return GL_TRUE;
}
+/* Called by window system/device driver (via gc->exports.loseCurrent())
+ * when the rendering context is made non-current.
+ */
+GLboolean
+_mesa_loseCurrent(__GLcontext *gc)
+{
+ /* XXX unbind context from thread */
+ return GL_TRUE;
+}
+
+/* Called by window system/device driver (via gc->exports.makeCurrent())
+ * when the rendering context is made current.
+ */
+GLboolean
+_mesa_makeCurrent(__GLcontext *gc)
+{
+ /* XXX bind context to thread */
+ return GL_TRUE;
+}
+
+/* Called by window system/device driver - yadda, yadda, yadda.
+ * See above comments.
+ */
+GLboolean
+_mesa_shareContext(__GLcontext *gc, __GLcontext *gcShare)
+{
+ if (gc && gcShare && gc->Shared && gcShare->Shared) {
+ gc->Shared->RefCount--;
+ if (gc->Shared->RefCount == 0) {
+ free_shared_state(gc, gc->Shared);
+ }
+ gc->Shared = gcShare->Shared;
+ gc->Shared->RefCount++;
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+}
+
+GLboolean
+_mesa_copyContext(__GLcontext *dst, const __GLcontext *src, GLuint mask)
+{
+ if (dst && src) {
+ _mesa_copy_context( src, dst, mask );
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+}
+
+GLboolean
+_mesa_forceCurrent(__GLcontext *gc)
+{
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_notifyResize(__GLcontext *gc)
+{
+ GLint x, y;
+ GLuint width, height;
+ __GLdrawablePrivate *d = gc->imports.getDrawablePrivate(gc);
+ if (!d || !d->getDrawableSize)
+ return GL_FALSE;
+ d->getDrawableSize( d, &x, &y, &width, &height );
+ /* update viewport, resize software buffers, etc. */
+ return GL_TRUE;
+}
+
+void
+_mesa_notifyDestroy(__GLcontext *gc)
+{
+}
+
+/* Called by window system just before swapping buffers.
+ * We have to finish any pending rendering.
+ */
+void
+_mesa_notifySwapBuffers(__GLcontext *gc)
+{
+ FLUSH_VERTICES( gc, 0 );
+}
+
+struct __GLdispatchStateRec *
+_mesa_dispatchExec(__GLcontext *gc)
+{
+ return NULL;
+}
+
+void
+_mesa_beginDispatchOverride(__GLcontext *gc)
+{
+}
+
+void
+_mesa_endDispatchOverride(__GLcontext *gc)
+{
+}
+
+/* Setup the exports. The window system will call these functions
+ * when it needs Mesa to do something.
+ * NOTE: Device drivers should override these functions! For example,
+ * the Xlib driver should plug in the XMesa*-style functions into this
+ * structure. The XMesa-style functions should then call the _mesa_*
+ * version of these functions. This is an approximation to OO design
+ * (inheritance and virtual functions).
+ */
+static void
+_mesa_init_default_exports(__GLexports *exports)
+{
+ exports->destroyContext = _mesa_destroyContext;
+ exports->loseCurrent = _mesa_loseCurrent;
+ exports->makeCurrent = _mesa_makeCurrent;
+ exports->shareContext = _mesa_shareContext;
+ exports->copyContext = _mesa_copyContext;
+ exports->forceCurrent = _mesa_forceCurrent;
+ exports->notifyResize = _mesa_notifyResize;
+ exports->notifyDestroy = _mesa_notifyCestroy;
+ exports->notifySwapBuffers = _mesa_notifySwapBuffers;
+ exports->dispatchExec = _mesa_dispatchExec;
+ exports->beginDispatchOverride = _mesa_beginDispatchOverride;
+ exports->endDispatchOverride = _mesa_endDispatchOverride;
+}
+
+
/* exported OpenGL SI interface */
__GLcontext *
@@ -104,7 +236,7 @@ __glCoreCreateContext(__GLimports *imports, __GLcontextModes *modes)
if (ctx == NULL) {
return NULL;
}
- ctx->Driver.CurrentExecPrimitive=0;
+ ctx->Driver.CurrentExecPrimitive=0; /* XXX why is this here??? */
ctx->imports = *imports;
_mesa_initialize_visual(&ctx->Visual,
@@ -124,10 +256,7 @@ __glCoreCreateContext(__GLimports *imports, __GLcontextModes *modes)
modes->accumAlphaBits,
0);
- /* KW: was imports->wscx */
- _mesa_initialize_context(ctx, &ctx->Visual, NULL, imports->other, GL_FALSE);
-
- ctx->exports.destroyContext = _mesa_DestroyContext;
+ _mesa_initialize_context(ctx, &ctx->Visual, NULL, imports);
return ctx;
}
@@ -148,12 +277,6 @@ __glCoreNopDispatch(void)
/**********************************************************************/
-/***** Context and Thread management *****/
-/**********************************************************************/
-
-
-
-/**********************************************************************/
/***** GL Visual allocation/destruction *****/
/**********************************************************************/
@@ -1472,25 +1595,30 @@ GLboolean
_mesa_initialize_context( GLcontext *ctx,
const GLvisual *visual,
GLcontext *share_list,
- void *driver_ctx,
- GLboolean direct )
+ const __GLimports *imports )
{
GLuint dispatchSize;
- (void) direct; /* not used */
+ ASSERT(imports);
+ ASSERT(imports->other); /* other points to the device driver's context */
/* misc one-time initializations */
one_time_init();
+ /* initialize the exports (Mesa functions called by the window system) */
+ _mesa_init_default_exports( &(ctx->exports) );
+
+#if 0
/**
** OpenGL SI stuff
**/
if (!ctx->imports.malloc) {
- _mesa_InitDefaultImports(&ctx->imports, driver_ctx, NULL);
+ _mesa_init_default_imports(&ctx->imports, driver_ctx);
}
/* exports are setup by the device driver */
+#endif
- ctx->DriverCtx = driver_ctx;
+ ctx->DriverCtx = imports->other;
ctx->Visual = *visual;
ctx->DrawBuffer = NULL;
ctx->ReadBuffer = NULL;
@@ -1643,21 +1771,20 @@ _mesa_initialize_context( GLcontext *ctx,
* Allocate and initialize a GLcontext structure.
* Input: visual - a GLvisual pointer (we copy the struct contents)
* sharelist - another context to share display lists with or NULL
- * driver_ctx - pointer to device driver's context state struct
+ * imports - points to a fully-initialized __GLimports object.
* Return: pointer to a new __GLcontextRec or NULL if error.
*/
GLcontext *
_mesa_create_context( const GLvisual *visual,
GLcontext *share_list,
- void *driver_ctx,
- GLboolean direct )
+ const __GLimports *imports )
{
GLcontext *ctx = (GLcontext *) CALLOC( sizeof(GLcontext) );
if (!ctx) {
return NULL;
}
- ctx->Driver.CurrentExecPrimitive = 0;
- if (_mesa_initialize_context(ctx, visual, share_list, driver_ctx, direct)) {
+ ctx->Driver.CurrentExecPrimitive = 0; /* XXX why is this here??? */
+ if (_mesa_initialize_context(ctx, visual, share_list, imports)) {
return ctx;
}
else {
@@ -1879,15 +2006,6 @@ _mesa_copy_context( const GLcontext *src, GLcontext *dst, GLuint mask )
}
-/*
- * Set the current context, binding the given frame buffer to the context.
- */
-void
-_mesa_make_current( GLcontext *newCtx, GLframebuffer *buffer )
-{
- _mesa_make_current2( newCtx, buffer, buffer );
-}
-
static void print_info( void )
{
@@ -1918,6 +2036,16 @@ static void print_info( void )
/*
+ * Set the current context, binding the given frame buffer to the context.
+ */
+void
+_mesa_make_current( GLcontext *newCtx, GLframebuffer *buffer )
+{
+ _mesa_make_current2( newCtx, buffer, buffer );
+}
+
+
+/*
* Bind the given context to the given draw-buffer and read-buffer
* and make it the current context for this thread.
*/
@@ -2133,6 +2261,20 @@ _mesa_error( GLcontext *ctx, GLenum error, const char *where )
}
+/*
+ * Call this to report debug information.
+ */
+#ifdef DEBUG
+void
+_mesa_debug( const char *fmtString, ... )
+{
+ va_list args;
+ va_start( args, fmtString );
+ (void) vfprintf( stderr, fmtString, args );
+ va_end( args );
+}
+#endif
+
void
_mesa_Finish( void )
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-22 17:24:12 +0000