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/*
* GLX implementation that uses Apple's OpenGL.framework
* (Indirect rendering path)
*/
/*
* Copyright (c) 2002 Greg Parker. All Rights Reserved.
* Copyright (c) 2002 Apple Computer, Inc.
*
* Portions of this file are copied from xf86glx.c,
* which contains the following copyright:
*
* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the sale,
* use or other dealings in this Software without prior written authorization.
*/
/* $XFree86: xc/programs/Xserver/GL/apple/indirect.c,v 1.3 2003/10/13 00:30:54 torrey Exp $ */
#include "dri.h"
#include "quartz.h"
#include <CoreGraphics/CoreGraphics.h>
#include <OpenGL/OpenGL.h>
#include <OpenGL/CGLContext.h>
// X11 and X11's glx
#include <miscstruct.h>
#include <windowstr.h>
#include <resource.h>
#include <GL/glxint.h>
#include <GL/glxtokens.h>
#include <scrnintstr.h>
#include <glxserver.h>
#include <glxscreens.h>
#include <glxdrawable.h>
#include <glxcontext.h>
#include <glxext.h>
#include <glxutil.h>
#include <glxscreens.h>
#include <GL/internal/glcore.h>
#include "x-hash.h"
#include "x-list.h"
// ggs: needed to call back to glx with visual configs
extern void GlxSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs, void **configprivs);
// Write debugging output, or not
#ifdef GLAQUA_DEBUG
#define GLAQUA_DEBUG_MSG ErrorF
#else
#define GLAQUA_DEBUG_MSG(a, ...)
#endif
// The following GL functions don't have an EXT suffix in OpenGL.framework.
GLboolean glAreTexturesResidentEXT(GLsizei a, const GLuint *b, GLboolean *c) {
return glAreTexturesResident(a, b, c);
}
void glDeleteTexturesEXT(GLsizei d, const GLuint *e) {
glDeleteTextures(d, e);
}
void glGenTexturesEXT(GLsizei f, GLuint *g) {
glGenTextures(f, g);
}
GLboolean glIsTextureEXT(GLuint h) {
return glIsTexture(h);
}
// some prototypes
static Bool glAquaScreenProbe(int screen);
static Bool glAquaInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
int *nvisualp, int *ndepthp,
int *rootDepthp, VisualID *defaultVisp,
unsigned long sizes, int bitsPerRGB);
static void glAquaSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
void **privates);
static __GLinterface *glAquaCreateContext(__GLimports *imports,
__GLcontextModes *mode,
__GLinterface *shareGC);
static void glAquaCreateBuffer(__GLXdrawablePrivate *glxPriv);
static void glAquaResetExtension(void);
/*
* This structure is statically allocated in the __glXScreens[]
* structure. This struct is not used anywhere other than in
* __glXScreenInit to initialize each of the active screens
* (__glXActiveScreens[]). Several of the fields must be initialized by
* the screenProbe routine before they are copied to the active screens
* struct. In particular, the contextCreate, pGlxVisual, numVisuals,
* and numUsableVisuals fields must be initialized.
*/
__GLXscreenInfo __glDDXScreenInfo = {
glAquaScreenProbe, /* Must be generic and handle all screens */
glAquaCreateContext, /* Substitute screen's createContext routine */
glAquaCreateBuffer, /* Substitute screen's createBuffer routine */
NULL, /* Set up pGlxVisual in probe */
NULL, /* Set up pVisualPriv in probe */
0, /* Set up numVisuals in probe */
0, /* Set up numUsableVisuals in probe */
"Vendor String", /* GLXvendor is overwritten by __glXScreenInit */
"Version String", /* GLXversion is overwritten by __glXScreenInit */
"Extensions String", /* GLXextensions is overwritten by __glXScreenInit */
NULL /* WrappedPositionWindow is overwritten */
};
__GLXextensionInfo __glDDXExtensionInfo = {
GL_CORE_APPLE,
glAquaResetExtension,
glAquaInitVisuals,
glAquaSetVisualConfigs
};
// prototypes
static GLboolean glAquaDestroyContext(__GLcontext *gc);
static GLboolean glAquaLoseCurrent(__GLcontext *gc);
static GLboolean glAquaMakeCurrent(__GLcontext *gc);
static GLboolean glAquaShareContext(__GLcontext *gc, __GLcontext *gcShare);
static GLboolean glAquaCopyContext(__GLcontext *dst, const __GLcontext *src,
GLuint mask);
static GLboolean glAquaForceCurrent(__GLcontext *gc);
/* Drawing surface notification callbacks */
static GLboolean glAquaNotifyResize(__GLcontext *gc);
static void glAquaNotifyDestroy(__GLcontext *gc);
static void glAquaNotifySwapBuffers(__GLcontext *gc);
/* Dispatch table override control for external agents like libGLS */
static struct __GLdispatchStateRec* glAquaDispatchExec(__GLcontext *gc);
static void glAquaBeginDispatchOverride(__GLcontext *gc);
static void glAquaEndDispatchOverride(__GLcontext *gc);
static __GLexports glAquaExports = {
glAquaDestroyContext,
glAquaLoseCurrent,
glAquaMakeCurrent,
glAquaShareContext,
glAquaCopyContext,
glAquaForceCurrent,
glAquaNotifyResize,
glAquaNotifyDestroy,
glAquaNotifySwapBuffers,
glAquaDispatchExec,
glAquaBeginDispatchOverride,
glAquaEndDispatchOverride
};
typedef struct {
int num_vis;
__GLXvisualConfig *glx_vis;
void **priv;
// wrapped screen functions
RealizeWindowProcPtr RealizeWindow;
UnrealizeWindowProcPtr UnrealizeWindow;
} glAquaScreenRec;
static glAquaScreenRec glAquaScreens[MAXSCREENS];
// __GLdrawablePrivate->private
typedef struct {
DrawablePtr pDraw;
xp_surface_id sid;
} GLAquaDrawableRec;
struct __GLcontextRec {
struct __GLinterfaceRec interface; // required to be first
CGLContextObj ctx;
CGLPixelFormatObj pixelFormat;
/* set when attached */
xp_surface_id sid;
unsigned isAttached :1;
};
/* maps from surface id -> list of __GLcontext */
static x_hash_table *surface_hash;
// Context manipulation; return GL_FALSE on failure
static GLboolean glAquaDestroyContext(__GLcontext *gc)
{
x_list *lst;
GLAQUA_DEBUG_MSG("glAquaDestroyContext (ctx 0x%x)\n", gc->ctx);
if (gc != NULL)
{
if (gc->sid != 0 && surface_hash != NULL)
{
lst = x_hash_table_lookup(surface_hash, (void *) gc->sid, NULL);
lst = x_list_remove(lst, gc);
x_hash_table_insert(surface_hash, (void *) gc->sid, lst);
}
if (gc->ctx != NULL)
CGLDestroyContext(gc->ctx);
if (gc->pixelFormat != NULL)
CGLDestroyPixelFormat(gc->pixelFormat);
free(gc);
}
return GL_TRUE;
}
static GLboolean glAquaLoseCurrent(__GLcontext *gc)
{
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaLoseCurrent (ctx 0x%x)\n", gc->ctx);
gl_err = CGLSetCurrentContext(NULL);
if (gl_err != 0)
ErrorF("CGLSetCurrentContext error: %s\n", CGLErrorString(gl_err));
__glXLastContext = NULL; // Mesa does this; why?
return GL_TRUE;
}
/* Called when a surface is destroyed as a side effect of destroying
the window it's attached to. */
static void surface_notify(void *_arg, void *data)
{
DRISurfaceNotifyArg *arg = _arg;
GLAquaDrawableRec *aquaPriv = data;
__GLcontext *gc;
x_list *lst;
switch (arg->kind)
{
case AppleDRISurfaceNotifyDestroyed:
if (surface_hash != NULL)
x_hash_table_remove(surface_hash, (void *) arg->id);
aquaPriv->pDraw = NULL;
aquaPriv->sid = 0;
break;
case AppleDRISurfaceNotifyChanged:
if (surface_hash != NULL)
{
lst = x_hash_table_lookup(surface_hash, (void *) arg->id, NULL);
for (; lst != NULL; lst = lst->next)
{
gc = lst->data;
xp_update_gl_context(gc->ctx);
}
}
break;
}
}
static void unattach(__GLcontext *gc)
{
x_list *lst;
if (gc->isAttached)
{
GLAQUA_DEBUG_MSG("unattaching\n");
if (surface_hash != NULL)
{
lst = x_hash_table_lookup(surface_hash, (void *) gc->sid, NULL);
lst = x_list_remove(lst, gc);
x_hash_table_insert(surface_hash, (void *) gc->sid, lst);
}
CGLClearDrawable(gc->ctx);
gc->isAttached = FALSE;
gc->sid = 0;
}
}
static void attach(__GLcontext *gc, __GLdrawablePrivate *glPriv)
{
__GLXdrawablePrivate *glxPriv;
glxPriv = (__GLXdrawablePrivate *)glPriv->other;
if (glxPriv->type == DRAWABLE_WINDOW)
{
WindowPtr pWin = (WindowPtr) glxPriv->pDraw;
GLAquaDrawableRec *aquaPriv = (GLAquaDrawableRec *)glPriv->private;
x_list *lst;
if (aquaPriv->sid == 0)
{
if (!quartzProcs->CreateSurface(pWin->drawable.pScreen,
pWin->drawable.id, &pWin->drawable,
0, &aquaPriv->sid, NULL,
surface_notify, aquaPriv))
{
return;
}
aquaPriv->pDraw = &pWin->drawable;
}
if (!gc->isAttached || gc->sid != aquaPriv->sid)
{
if (xp_attach_gl_context(gc->ctx, aquaPriv->sid) != Success)
{
quartzProcs->DestroySurface(pWin->drawable.pScreen,
pWin->drawable.id, &pWin->drawable,
surface_notify, aquaPriv);
if (surface_hash != NULL)
x_hash_table_remove(surface_hash, (void *) aquaPriv->sid);
aquaPriv->sid = 0;
return;
}
gc->isAttached = TRUE;
gc->sid = aquaPriv->sid;
if (surface_hash == NULL)
surface_hash = x_hash_table_new(NULL, NULL, NULL, NULL);
lst = x_hash_table_lookup(surface_hash, (void *) gc->sid, NULL);
if (x_list_find(lst, gc) == NULL)
{
lst = x_list_prepend(lst, gc);
x_hash_table_insert(surface_hash, (void *) gc->sid, lst);
}
GLAQUA_DEBUG_MSG("attached 0x%x to 0x%x\n", pWin->drawable.id,
aquaPriv->sid);
}
} else {
GLAQUA_DEBUG_MSG("attach: attach to non-window unimplemented\n");
CGLClearDrawable(gc->ctx);
gc->isAttached = FALSE;
}
}
static GLboolean glAquaMakeCurrent(__GLcontext *gc)
{
__GLdrawablePrivate *glPriv = gc->interface.imports.getDrawablePrivate(gc);
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaMakeCurrent (ctx 0x%x)\n", gc->ctx);
attach(gc, glPriv);
gl_err = CGLSetCurrentContext(gc->ctx);
if (gl_err != 0)
ErrorF("CGLSetCurrentContext error: %s\n", CGLErrorString(gl_err));
return gl_err == 0;
}
static GLboolean glAquaShareContext(__GLcontext *gc, __GLcontext *gcShare)
{
GLAQUA_DEBUG_MSG("glAquaShareContext unimplemented\n");
return GL_TRUE;
}
static GLboolean glAquaCopyContext(__GLcontext *dst, const __GLcontext *src,
GLuint mask)
{
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaCopyContext\n");
gl_err = CGLCopyContext(src->ctx, dst->ctx, mask);
if (gl_err != 0)
ErrorF("CGLCopyContext error: %s\n", CGLErrorString(gl_err));
return gl_err == 0;
}
static GLboolean glAquaForceCurrent(__GLcontext *gc)
{
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaForceCurrent (ctx 0x%x)\n", gc->ctx);
gl_err = CGLSetCurrentContext(gc->ctx);
if (gl_err != 0)
ErrorF("CGLSetCurrentContext error: %s\n", CGLErrorString(gl_err));
return gl_err == 0;
}
/* Drawing surface notification callbacks */
static GLboolean glAquaNotifyResize(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaNotifyResize");
return GL_TRUE;
}
static void glAquaNotifyDestroy(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaNotifyDestroy");
}
static void glAquaNotifySwapBuffers(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaNotifySwapBuffers");
}
/* Dispatch table override control for external agents like libGLS */
static struct __GLdispatchStateRec* glAquaDispatchExec(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaDispatchExec");
return NULL;
}
static void glAquaBeginDispatchOverride(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaBeginDispatchOverride");
}
static void glAquaEndDispatchOverride(__GLcontext *gc)
{
GLAQUA_DEBUG_MSG("unimplemented glAquaEndDispatchOverride");
}
static CGLPixelFormatObj makeFormat(__GLcontextModes *mode)
{
int i;
CGLPixelFormatAttribute attr[64]; // currently uses max of 30
CGLPixelFormatObj result;
long n_formats;
CGLError gl_err;
GLAQUA_DEBUG_MSG("makeFormat\n");
if (!mode->rgbMode)
return NULL;
i = 0;
// attr [i++] = kCGLPFAAcelerated; // require hwaccel - BAD for multiscreen
// attr [i++] = kCGLPFANoRecovery; // disable fallback renderers - BAD
if (mode->stereoMode) {
attr[i++] = kCGLPFAStereo;
}
if (mode->doubleBufferMode) {
attr[i++] = kCGLPFADoubleBuffer;
}
if (mode->colorIndexMode) {
/* ignored */
}
if (mode->rgbMode) {
attr[i++] = kCGLPFAColorSize;
attr[i++] = mode->redBits + mode->greenBits + mode->blueBits;
attr[i++] = kCGLPFAAlphaSize;
attr[i++] = 1; /* FIXME: ignoring mode->alphaBits which is always 0 */
}
if (mode->haveAccumBuffer) {
attr[i++] = kCGLPFAAccumSize;
attr[i++] = mode->accumRedBits + mode->accumGreenBits
+ mode->accumBlueBits + mode->accumAlphaBits;
}
if (mode->haveDepthBuffer) {
attr[i++] = kCGLPFADepthSize;
attr[i++] = mode->depthBits;
}
if (mode->haveStencilBuffer) {
attr[i++] = kCGLPFAStencilSize;
attr[i++] = mode->stencilBits;
}
attr[i++] = kCGLPFAAuxBuffers;
attr[i++] = mode->numAuxBuffers;
/* mode->level ignored */
/* mode->pixmapMode ? */
attr[i++] = 0;
GLAQUA_DEBUG_MSG("makeFormat almost done\n");
result = NULL;
gl_err = CGLChoosePixelFormat(attr, &result, &n_formats);
if (gl_err != 0)
ErrorF("CGLChoosePixelFormat error: %s\n", CGLErrorString(gl_err));
GLAQUA_DEBUG_MSG("makeFormat done (0x%x)\n", result);
return result;
}
static __GLinterface *glAquaCreateContext(__GLimports *imports,
__GLcontextModes *mode,
__GLinterface *shareGC)
{
__GLcontext *result;
__GLcontext *sharectx = (__GLcontext *)shareGC;
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaCreateContext\n");
result = (__GLcontext *)calloc(1, sizeof(__GLcontext));
if (!result) return NULL;
result->interface.imports = *imports;
result->interface.exports = glAquaExports;
result->pixelFormat = makeFormat(mode);
if (!result->pixelFormat) {
free(result);
return NULL;
}
result->ctx = NULL;
gl_err = CGLCreateContext(result->pixelFormat,
sharectx ? sharectx->ctx : NULL,
&result->ctx);
if (gl_err != 0) {
ErrorF("CGLCreateContext error: %s\n", CGLErrorString(gl_err));
CGLDestroyPixelFormat(result->pixelFormat);
free(result);
return NULL;
}
GLAQUA_DEBUG_MSG("glAquaCreateContext done\n");
return (__GLinterface *)result;
}
Bool
glAquaRealizeWindow(WindowPtr pWin)
{
// If this window has GL contexts, tell them to reattach
Bool result;
ScreenPtr pScreen = pWin->drawable.pScreen;
glAquaScreenRec *screenPriv = &glAquaScreens[pScreen->myNum];
__GLXdrawablePrivate *glxPriv;
GLAQUA_DEBUG_MSG("glAquaRealizeWindow\n");
// Allow the window to be created (RootlessRealizeWindow is inside our wrap)
pScreen->RealizeWindow = screenPriv->RealizeWindow;
result = pScreen->RealizeWindow(pWin);
pScreen->RealizeWindow = glAquaRealizeWindow;
// The Aqua window will already have been created (windows are
// realized from top down)
// Re-attach this window's GL contexts, if any.
glxPriv = __glXFindDrawablePrivate(pWin->drawable.id);
if (glxPriv) {
__GLXcontext *gx;
__GLcontext *gc;
__GLdrawablePrivate *glPriv = &glxPriv->glPriv;
GLAQUA_DEBUG_MSG("glAquaRealizeWindow is GL drawable!\n");
// GL contexts bound to this window for drawing
for (gx = glxPriv->drawGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
attach(gc, glPriv);
}
// GL contexts bound to this window for reading
for (gx = glxPriv->readGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
attach(gc, glPriv);
}
}
return result;
}
Bool
glAquaUnrealizeWindow(WindowPtr pWin)
{
// If this window has GL contexts, tell them to unattach
Bool result;
ScreenPtr pScreen = pWin->drawable.pScreen;
glAquaScreenRec *screenPriv = &glAquaScreens[pScreen->myNum];
__GLXdrawablePrivate *glxPriv;
GLAQUA_DEBUG_MSG("glAquaUnrealizeWindow\n");
// The Aqua window may have already been destroyed (windows
// are unrealized from top down)
// Unattach this window's GL contexts, if any.
glxPriv = __glXFindDrawablePrivate(pWin->drawable.id);
if (glxPriv) {
__GLXcontext *gx;
__GLcontext *gc;
GLAQUA_DEBUG_MSG("glAquaUnealizeWindow is GL drawable!\n");
// GL contexts bound to this window for drawing
for (gx = glxPriv->drawGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
unattach(gc);
}
// GL contexts bound to this window for reading
for (gx = glxPriv->readGlxc; gx != NULL; gx = gx->next) {
gc = (__GLcontext *)gx->gc;
unattach(gc);
}
}
pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow;
result = pScreen->UnrealizeWindow(pWin);
pScreen->UnrealizeWindow = glAquaUnrealizeWindow;
return result;
}
/*
* In the case the driver has no GLX visuals we'll use these.
* [0] = RGB, double buffered
* [1] = RGB, double buffered, stencil, accum
*/
// Originally copied from Mesa
static int numConfigs = 0;
static __GLXvisualConfig *visualConfigs = NULL;
static void **visualPrivates = NULL;
#define NUM_FALLBACK_CONFIGS 2
static __GLXvisualConfig FallbackConfigs[NUM_FALLBACK_CONFIGS] = {
{
-1, /* vid */
-1, /* class */
True, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
0, 0, 0, 0, /* rgba accum sizes */
True, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
0, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
},
{
-1, /* vid */
-1, /* class */
True, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
16, 16, 16, 0, /* rgba accum sizes */
True, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
8, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
}
};
static __GLXvisualConfig NullConfig = {
-1, /* vid */
-1, /* class */
False, /* rgba */
-1, -1, -1, 0, /* rgba sizes */
-1, -1, -1, 0, /* rgba masks */
0, 0, 0, 0, /* rgba accum sizes */
False, /* doubleBuffer */
False, /* stereo */
-1, /* bufferSize */
16, /* depthSize */
0, /* stencilSize */
0, /* auxBuffers */
0, /* level */
GLX_NONE_EXT, /* visualRating */
0, /* transparentPixel */
0, 0, 0, 0, /* transparent rgba color (floats scaled to ints) */
0 /* transparentIndex */
};
static inline int count_bits(uint32_t x)
{
x = x - ((x >> 1) & 0x55555555);
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
x = (x + (x >> 4)) & 0x0f0f0f0f;
x = x + (x >> 8);
x = x + (x >> 16);
return x & 63;
}
// Mostly copied from Mesa's xf86glx.c
static Bool init_visuals(int *nvisualp, VisualPtr *visualp,
VisualID *defaultVisp,
int ndepth, DepthPtr pdepth,
int rootDepth)
{
int numRGBconfigs;
int numCIconfigs;
int numVisuals = *nvisualp;
int numNewVisuals;
int numNewConfigs;
VisualPtr pVisual = *visualp;
VisualPtr pVisualNew = NULL;
VisualID *orig_vid = NULL;
__GLXvisualConfig *glXVisualPtr = NULL;
__GLXvisualConfig *pNewVisualConfigs = NULL;
void **glXVisualPriv;
void **pNewVisualPriv;
int found_default;
int i, j, k;
GLAQUA_DEBUG_MSG("init_visuals\n");
if (numConfigs > 0)
numNewConfigs = numConfigs;
else
numNewConfigs = NUM_FALLBACK_CONFIGS;
/* Alloc space for the list of new GLX visuals */
pNewVisualConfigs = (__GLXvisualConfig *)
__glXMalloc(numNewConfigs * sizeof(__GLXvisualConfig));
if (!pNewVisualConfigs) {
return FALSE;
}
/* Alloc space for the list of new GLX visual privates */
pNewVisualPriv = (void **) __glXMalloc(numNewConfigs * sizeof(void *));
if (!pNewVisualPriv) {
__glXFree(pNewVisualConfigs);
return FALSE;
}
/*
** If SetVisualConfigs was not called, then use default GLX
** visual configs.
*/
if (numConfigs == 0) {
memcpy(pNewVisualConfigs, FallbackConfigs,
NUM_FALLBACK_CONFIGS * sizeof(__GLXvisualConfig));
memset(pNewVisualPriv, 0, NUM_FALLBACK_CONFIGS * sizeof(void *));
}
else {
/* copy driver's visual config info */
for (i = 0; i < numConfigs; i++) {
pNewVisualConfigs[i] = visualConfigs[i];
pNewVisualPriv[i] = visualPrivates[i];
}
}
/* Count the number of RGB and CI visual configs */
numRGBconfigs = 0;
numCIconfigs = 0;
for (i = 0; i < numNewConfigs; i++) {
if (pNewVisualConfigs[i].rgba)
numRGBconfigs++;
else
numCIconfigs++;
}
/* Count the total number of visuals to compute */
numNewVisuals = 0;
for (i = 0; i < numVisuals; i++) {
int count;
count = ((pVisual[i].class == TrueColor
|| pVisual[i].class == DirectColor)
? numRGBconfigs : numCIconfigs);
if (count == 0)
count = 1; /* preserve the existing visual */
numNewVisuals += count;
}
/* Reset variables for use with the next screen/driver's visual configs */
visualConfigs = NULL;
numConfigs = 0;
/* Alloc temp space for the list of orig VisualIDs for each new visual */
orig_vid = (VisualID *)__glXMalloc(numNewVisuals * sizeof(VisualID));
if (!orig_vid) {
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the list of glXVisuals */
glXVisualPtr = (__GLXvisualConfig *)__glXMalloc(numNewVisuals *
sizeof(__GLXvisualConfig));
if (!glXVisualPtr) {
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the list of glXVisualPrivates */
glXVisualPriv = (void **)__glXMalloc(numNewVisuals * sizeof(void *));
if (!glXVisualPriv) {
__glXFree(glXVisualPtr);
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Alloc space for the new list of the X server's visuals */
pVisualNew = (VisualPtr)__glXMalloc(numNewVisuals * sizeof(VisualRec));
if (!pVisualNew) {
__glXFree(glXVisualPriv);
__glXFree(glXVisualPtr);
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
return FALSE;
}
/* Initialize the new visuals */
found_default = FALSE;
for (i = j = 0; i < numVisuals; i++) {
int is_rgb = (pVisual[i].class == TrueColor ||
pVisual[i].class == DirectColor);
if (!is_rgb)
{
/* We don't support non-rgb visuals for GL. But we don't
want to remove them either, so just pass them through
with null glX configs */
pVisualNew[j] = pVisual[i];
pVisualNew[j].vid = FakeClientID(0);
/* Check for the default visual */
if (!found_default && pVisual[i].vid == *defaultVisp) {
*defaultVisp = pVisualNew[j].vid;
found_default = TRUE;
}
/* Save the old VisualID */
orig_vid[j] = pVisual[i].vid;
/* Initialize the glXVisual */
glXVisualPtr[j] = NullConfig;
glXVisualPriv[j] = NULL;
j++;
continue;
}
for (k = 0; k < numNewConfigs; k++) {
if (pNewVisualConfigs[k].rgba != is_rgb)
continue;
/* Initialize the new visual */
pVisualNew[j] = pVisual[i];
pVisualNew[j].vid = FakeClientID(0);
/* Check for the default visual */
if (!found_default && pVisual[i].vid == *defaultVisp) {
*defaultVisp = pVisualNew[j].vid;
found_default = TRUE;
}
/* Save the old VisualID */
orig_vid[j] = pVisual[i].vid;
/* Initialize the glXVisual */
glXVisualPtr[j] = pNewVisualConfigs[k];
glXVisualPtr[j].vid = pVisualNew[j].vid;
/*
* If the class is -1, then assume the X visual information
* is identical to what GLX needs, and take them from the X
* visual. NOTE: if class != -1, then all other fields MUST
* be initialized.
*/
if (glXVisualPtr[j].class == -1) {
glXVisualPtr[j].class = pVisual[i].class;
glXVisualPtr[j].redSize = count_bits(pVisual[i].redMask);
glXVisualPtr[j].greenSize = count_bits(pVisual[i].greenMask);
glXVisualPtr[j].blueSize = count_bits(pVisual[i].blueMask);
glXVisualPtr[j].alphaSize = glXVisualPtr[j].alphaSize;
glXVisualPtr[j].redMask = pVisual[i].redMask;
glXVisualPtr[j].greenMask = pVisual[i].greenMask;
glXVisualPtr[j].blueMask = pVisual[i].blueMask;
glXVisualPtr[j].alphaMask = glXVisualPtr[j].alphaMask;
glXVisualPtr[j].bufferSize = rootDepth;
}
/* Save the device-dependent private for this visual */
glXVisualPriv[j] = pNewVisualPriv[k];
j++;
}
}
assert(j <= numNewVisuals);
/* Save the GLX visuals in the screen structure */
glAquaScreens[screenInfo.numScreens-1].num_vis = numNewVisuals;
glAquaScreens[screenInfo.numScreens-1].glx_vis = glXVisualPtr;
glAquaScreens[screenInfo.numScreens-1].priv = glXVisualPriv;
/* Set up depth's VisualIDs */
for (i = 0; i < ndepth; i++) {
int numVids = 0;
VisualID *pVids = NULL;
int k, n = 0;
/* Count the new number of VisualIDs at this depth */
for (j = 0; j < pdepth[i].numVids; j++)
for (k = 0; k < numNewVisuals; k++)
if (pdepth[i].vids[j] == orig_vid[k])
numVids++;
/* Allocate a new list of VisualIDs for this depth */
pVids = (VisualID *)__glXMalloc(numVids * sizeof(VisualID));
/* Initialize the new list of VisualIDs for this depth */
for (j = 0; j < pdepth[i].numVids; j++)
for (k = 0; k < numNewVisuals; k++)
if (pdepth[i].vids[j] == orig_vid[k])
pVids[n++] = pVisualNew[k].vid;
/* Update this depth's list of VisualIDs */
__glXFree(pdepth[i].vids);
pdepth[i].vids = pVids;
pdepth[i].numVids = numVids;
}
/* Update the X server's visuals */
*nvisualp = numNewVisuals;
*visualp = pVisualNew;
/* Free the old list of the X server's visuals */
__glXFree(pVisual);
/* Clean up temporary allocations */
__glXFree(orig_vid);
__glXFree(pNewVisualPriv);
__glXFree(pNewVisualConfigs);
/* Free the private list created by DDX HW driver */
if (visualPrivates)
xfree(visualPrivates);
visualPrivates = NULL;
return TRUE;
}
/* based on code in i830_dri.c
This ends calling glAquaSetVisualConfigs to set the static
numconfigs, etc. */
static void
glAquaInitVisualConfigs(void)
{
int lclNumConfigs = 0;
__GLXvisualConfig *lclVisualConfigs = NULL;
void **lclVisualPrivates = NULL;
int depth, aux, buffers, stencil, accum;
int i = 0;
GLAQUA_DEBUG_MSG("glAquaInitVisualConfigs ");
/* count num configs:
2 Z buffer (0, 24 bit)
2 AUX buffer (0, 2)
2 buffers (single, double)
2 stencil (0, 8 bit)
2 accum (0, 64 bit)
= 32 configs */
lclNumConfigs = 2 * 2 * 2 * 2 * 2; /* 32 */
/* alloc */
lclVisualConfigs = xcalloc(sizeof(__GLXvisualConfig), lclNumConfigs);
lclVisualPrivates = xcalloc(sizeof(void *), lclNumConfigs);
/* fill in configs */
if (NULL != lclVisualConfigs) {
i = 0; /* current buffer */
for (depth = 0; depth < 2; depth++) {
for (aux = 0; aux < 2; aux++) {
for (buffers = 0; buffers < 2; buffers++) {
for (stencil = 0; stencil < 2; stencil++) {
for (accum = 0; accum < 2; accum++) {
lclVisualConfigs[i].vid = -1;
lclVisualConfigs[i].class = -1;
lclVisualConfigs[i].rgba = TRUE;
lclVisualConfigs[i].redSize = -1;
lclVisualConfigs[i].greenSize = -1;
lclVisualConfigs[i].blueSize = -1;
lclVisualConfigs[i].redMask = -1;
lclVisualConfigs[i].greenMask = -1;
lclVisualConfigs[i].blueMask = -1;
lclVisualConfigs[i].alphaMask = 0;
if (accum) {
lclVisualConfigs[i].accumRedSize = 16;
lclVisualConfigs[i].accumGreenSize = 16;
lclVisualConfigs[i].accumBlueSize = 16;
lclVisualConfigs[i].accumAlphaSize = 16;
}
else {
lclVisualConfigs[i].accumRedSize = 0;
lclVisualConfigs[i].accumGreenSize = 0;
lclVisualConfigs[i].accumBlueSize = 0;
lclVisualConfigs[i].accumAlphaSize = 0;
}
lclVisualConfigs[i].doubleBuffer = buffers ? TRUE : FALSE;
lclVisualConfigs[i].stereo = FALSE;
lclVisualConfigs[i].bufferSize = -1;
lclVisualConfigs[i].depthSize = depth? 24 : 0;
lclVisualConfigs[i].stencilSize = stencil ? 8 : 0;
lclVisualConfigs[i].auxBuffers = aux ? 2 : 0;
lclVisualConfigs[i].level = 0;
lclVisualConfigs[i].visualRating = GLX_NONE_EXT;
lclVisualConfigs[i].transparentPixel = 0;
lclVisualConfigs[i].transparentRed = 0;
lclVisualConfigs[i].transparentGreen = 0;
lclVisualConfigs[i].transparentBlue = 0;
lclVisualConfigs[i].transparentAlpha = 0;
lclVisualConfigs[i].transparentIndex = 0;
i++;
}
}
}
}
}
}
if (i != lclNumConfigs)
GLAQUA_DEBUG_MSG("glAquaInitVisualConfigs failed to alloc visual configs");
GlxSetVisualConfigs(lclNumConfigs, lclVisualConfigs, lclVisualPrivates);
}
// Copied from Mesa
static void glAquaSetVisualConfigs(int nconfigs, __GLXvisualConfig *configs,
void **privates)
{
GLAQUA_DEBUG_MSG("glAquaSetVisualConfigs\n");
numConfigs = nconfigs;
visualConfigs = configs;
visualPrivates = privates;
}
// Copied from Mesa
static Bool glAquaInitVisuals(VisualPtr *visualp, DepthPtr *depthp,
int *nvisualp, int *ndepthp,
int *rootDepthp, VisualID *defaultVisp,
unsigned long sizes, int bitsPerRGB)
{
GLAQUA_DEBUG_MSG("glAquaInitVisuals\n");
if (0 == numConfigs) /* if no configs */
glAquaInitVisualConfigs(); /* ensure the visula configs are setup */
/*
* Setup the visuals supported by this particular screen.
*/
return init_visuals(nvisualp, visualp, defaultVisp,
*ndepthp, *depthp, *rootDepthp);
}
static void fixup_visuals(int screen)
{
ScreenPtr pScreen = screenInfo.screens[screen];
glAquaScreenRec *pScr = &glAquaScreens[screen];
__GLXvisualConfig *pGLXVis = pScr->glx_vis;
VisualPtr pVis;
int i, j;
GLAQUA_DEBUG_MSG("fixup_visuals\n");
for (i = 0; i < pScr->num_vis; i++, pGLXVis++) {
pVis = pScreen->visuals;
/* Find a visual that matches the GLX visual's class and size */
for (j = 0; j < pScreen->numVisuals; j++, pVis++) {
if (pVis->class == pGLXVis->class &&
pVis->nplanes == pGLXVis->bufferSize) {
/* Fixup the masks */
pGLXVis->redMask = pVis->redMask;
pGLXVis->greenMask = pVis->greenMask;
pGLXVis->blueMask = pVis->blueMask;
/* Recalc the sizes */
pGLXVis->redSize = count_bits(pGLXVis->redMask);
pGLXVis->greenSize = count_bits(pGLXVis->greenMask);
pGLXVis->blueSize = count_bits(pGLXVis->blueMask);
}
}
}
}
static void init_screen_visuals(int screen)
{
ScreenPtr pScreen = screenInfo.screens[screen];
__GLXvisualConfig *pGLXVis = glAquaScreens[screen].glx_vis;
// XMesaVisual *pXMesaVisual;
VisualPtr pVis;
int *used;
int i, j;
GLAQUA_DEBUG_MSG("init_screen_visuals\n");
/* Alloc space for the list of XMesa visuals */
// pXMesaVisual = (XMesaVisual *)__glXMalloc(MESAScreens[screen].num_vis *
// sizeof(XMesaVisual));
// __glXMemset(pXMesaVisual, 0,
// MESAScreens[screen].num_vis * sizeof(XMesaVisual));
used = (int *)__glXMalloc(pScreen->numVisuals * sizeof(int));
__glXMemset(used, 0, pScreen->numVisuals * sizeof(int));
for (i = 0; i < glAquaScreens[screen].num_vis; i++, pGLXVis++) {
pVis = pScreen->visuals;
for (j = 0; j < pScreen->numVisuals; j++, pVis++) {
if (pVis->class == pGLXVis->class &&
pVis->nplanes == pGLXVis->bufferSize &&
!used[j]) {
if (pVis->redMask == pGLXVis->redMask &&
pVis->greenMask == pGLXVis->greenMask &&
pVis->blueMask == pGLXVis->blueMask) {
/* Create the XMesa visual */
/*
pXMesaVisual[i] =
XMesaCreateVisual(pScreen,
pVis,
pGLXVis->rgba,
(pGLXVis->alphaSize > 0),
pGLXVis->doubleBuffer,
pGLXVis->stereo,
GL_TRUE, // ximage_flag
pGLXVis->depthSize,
pGLXVis->stencilSize,
pGLXVis->accumRedSize,
pGLXVis->accumGreenSize,
pGLXVis->accumBlueSize,
pGLXVis->accumAlphaSize,
0, // numSamples
pGLXVis->level,
pGLXVis->visualRating );
*/
/* Set the VisualID */
pGLXVis->vid = pVis->vid;
/* Mark this visual used */
used[j] = 1;
break;
}
}
}
}
__glXFree(used);
// glAquaScreens[screen].xm_vis = pXMesaVisual;
}
static Bool glAquaScreenProbe(int screen)
{
ScreenPtr pScreen;
glAquaScreenRec *screenPriv;
GLAQUA_DEBUG_MSG("glAquaScreenProbe\n");
/*
* Set up the current screen's visuals.
*/
__glDDXScreenInfo.pGlxVisual = glAquaScreens[screen].glx_vis;
__glDDXScreenInfo.pVisualPriv = glAquaScreens[screen].priv;
__glDDXScreenInfo.numVisuals =
__glDDXScreenInfo.numUsableVisuals = glAquaScreens[screen].num_vis;
/*
* Set the current screen's createContext routine. This could be
* wrapped by a DDX GLX context creation routine.
*/
__glDDXScreenInfo.createContext = glAquaCreateContext;
/*
* The ordering of the rgb compenents might have been changed by the
* driver after mi initialized them.
*/
fixup_visuals(screen);
/*
* Find the GLX visuals that are supported by this screen and create
* XMesa's visuals.
*/
init_screen_visuals(screen);
// Wrap RealizeWindow and UnrealizeWindow on this screen
pScreen = screenInfo.screens[screen];
screenPriv = &glAquaScreens[screen];
screenPriv->RealizeWindow = pScreen->RealizeWindow;
pScreen->RealizeWindow = glAquaRealizeWindow;
screenPriv->UnrealizeWindow = pScreen->UnrealizeWindow;
pScreen->UnrealizeWindow = glAquaUnrealizeWindow;
return TRUE;
}
static GLboolean glAquaSwapBuffers(__GLXdrawablePrivate *glxPriv)
{
// swap buffers on only *one* of the contexts
// (e.g. the last one for drawing)
__GLcontext *gc = (__GLcontext *)glxPriv->drawGlxc->gc;
CGLError gl_err;
GLAQUA_DEBUG_MSG("glAquaSwapBuffers\n");
if (gc != NULL && gc->ctx != NULL)
{
gl_err = CGLFlushDrawable(gc->ctx);
if (gl_err != 0)
ErrorF("CGLFlushDrawable error: %s\n", CGLErrorString(gl_err));
}
return GL_TRUE;
}
static void glAquaDestroyDrawablePrivate(__GLdrawablePrivate *glPriv)
{
GLAQUA_DEBUG_MSG("glAquaDestroyDrawablePrivate\n");
/* It doesn't work to call DRIDestroySurface here, the drawable's
already gone.. But dri.c notices the window destruction and
frees the surface itself. */
free(glPriv->private);
glPriv->private = NULL;
}
static void glAquaCreateBuffer(__GLXdrawablePrivate *glxPriv)
{
GLAquaDrawableRec *aquaPriv = malloc(sizeof(GLAquaDrawableRec));
__GLdrawablePrivate *glPriv = &glxPriv->glPriv;
aquaPriv->sid = 0;
aquaPriv->pDraw = NULL;
GLAQUA_DEBUG_MSG("glAquaCreateBuffer\n");
// replace swapBuffers (original is never called)
glxPriv->swapBuffers = glAquaSwapBuffers;
// stash private data
glPriv->private = aquaPriv;
glPriv->freePrivate = glAquaDestroyDrawablePrivate;
}
static void glAquaResetExtension(void)
{
GLAQUA_DEBUG_MSG("glAquaResetExtension\n");
CGLSetOption(kCGLGOResetLibrary, GL_TRUE);
}
// Extra goodies for glx
GLint __glEvalComputeK(GLenum target)
{
switch (target) {
case GL_MAP1_VERTEX_4:
case GL_MAP1_COLOR_4:
case GL_MAP1_TEXTURE_COORD_4:
case GL_MAP2_VERTEX_4:
case GL_MAP2_COLOR_4:
case GL_MAP2_TEXTURE_COORD_4:
return 4;
case GL_MAP1_VERTEX_3:
case GL_MAP1_TEXTURE_COORD_3:
case GL_MAP1_NORMAL:
case GL_MAP2_VERTEX_3:
case GL_MAP2_TEXTURE_COORD_3:
case GL_MAP2_NORMAL:
return 3;
case GL_MAP1_TEXTURE_COORD_2:
case GL_MAP2_TEXTURE_COORD_2:
return 2;
case GL_MAP1_TEXTURE_COORD_1:
case GL_MAP2_TEXTURE_COORD_1:
case GL_MAP1_INDEX:
case GL_MAP2_INDEX:
return 1;
default:
return 0;
}
}
GLuint __glFloorLog2(GLuint val)
{
int c = 0;
while (val > 1) {
c++;
val >>= 1;
}
return c;
}
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