/*
* Mesa 3-D graphics library
- * Version: 7.6
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
* 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
- * BRIAN PAUL 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#define GLX_GLXEXT_PROTOTYPES
#include "GL/glx.h"
+#include <X11/Xmd.h>
+#include <GL/glxproto.h>
+
#include "xm_api.h"
"GLX_ARB_create_context " \
"GLX_ARB_create_context_profile " \
"GLX_ARB_get_proc_address " \
+ "GLX_EXT_create_context_es_profile " \
+ "GLX_EXT_create_context_es2_profile " \
"GLX_EXT_texture_from_pixmap " \
"GLX_EXT_visual_info " \
"GLX_EXT_visual_rating " \
#define DEFAULT_DIRECT GL_TRUE
+/** XXX this could be based on gallium's max texture size */
+#define PBUFFER_MAX_SIZE 16384
+
/**
* The GLXContext typedef is defined as a pointer to this structure.
if (dbFlag) {
/* Check if the MESA_BACK_BUFFER env var is set */
- char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER");
+ char *backbuffer = getenv("MESA_BACK_BUFFER");
if (backbuffer) {
if (backbuffer[0]=='p' || backbuffer[0]=='P') {
ximageFlag = GL_FALSE;
/* Comparing IDs uses less memory but sometimes fails. */
/* XXX revisit this after 3.0 is finished. */
- if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
+ if (getenv("MESA_GLX_VISUAL_HACK"))
comparePointers = GL_TRUE;
else
comparePointers = GL_FALSE;
/* Force the visual to have an alpha channel */
- if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
+ if (rgbFlag && getenv("MESA_GLX_FORCE_ALPHA"))
alphaFlag = GL_TRUE;
/* First check if a matching visual is already in the list */
*/
xmvis->vishandle = vinfo;
/* Allocate more space for additional visual */
- VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable,
- sizeof(XMesaVisual) * NumVisuals,
+ VisualTable = (XMesaVisual *) realloc( VisualTable,
sizeof(XMesaVisual) * (NumVisuals + 1));
/* add xmvis to the list */
VisualTable[NumVisuals] = xmvis;
default_depth_bits(void)
{
int zBits;
- const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS");
+ const char *zEnv = getenv("MESA_GLX_DEPTH_BITS");
if (zEnv)
zBits = atoi(zEnv);
else
- zBits = DEFAULT_SOFTWARE_DEPTH_BITS;
+ zBits = 24;
return zBits;
}
default_alpha_bits(void)
{
int aBits;
- const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS");
+ const char *aEnv = getenv("MESA_GLX_ALPHA_BITS");
if (aEnv)
aBits = atoi(aEnv);
else
GL_TRUE, /* double */
GL_FALSE, /* stereo */
zBits,
- STENCIL_BITS,
+ 8, /* stencil bits */
accBits, /* r */
accBits, /* g */
accBits, /* b */
return vis;
}
else {
- XFree((void *) vis);
+ free((void *) vis);
return NULL;
}
}
int depth, xclass = -1;
XVisualInfo *vis;
- if (!_mesa_getenv( varname )) {
+ if (!getenv( varname )) {
return NULL;
}
- strncpy( value, _mesa_getenv(varname), 100 );
+ strncpy( value, getenv(varname), 100 );
value[99] = 0;
sscanf( value, "%s %d", type, &depth );
}
+/**
+ * Fake an error.
+ */
+static int
+generate_error(Display *dpy,
+ unsigned char error_code,
+ XID resourceid,
+ unsigned char minor_code,
+ Bool core)
+{
+ XErrorHandler handler;
+ int major_opcode;
+ int first_event;
+ int first_error;
+ XEvent event;
+
+ handler = XSetErrorHandler(NULL);
+ XSetErrorHandler(handler);
+ if (!handler) {
+ return 0;
+ }
+
+ if (!XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_opcode, &first_event, &first_error)) {
+ major_opcode = 0;
+ first_event = 0;
+ first_error = 0;
+ }
+
+ if (!core) {
+ error_code += first_error;
+ }
+
+ memset(&event, 0, sizeof event);
+
+ event.xerror.type = X_Error;
+ event.xerror.display = dpy;
+ event.xerror.resourceid = resourceid;
+ event.xerror.serial = NextRequest(dpy) - 1;
+ event.xerror.error_code = error_code;
+ event.xerror.request_code = major_opcode;
+ event.xerror.minor_code = minor_code;
+
+ return handler(dpy, &event.xerror);
+}
+
+
/**********************************************************************/
/*** Begin Fake GLX API Functions ***/
/**********************************************************************/
while (*parselist) {
+ if (fbConfig &&
+ parselist[1] == GLX_DONT_CARE &&
+ parselist[0] != GLX_LEVEL) {
+ /* For glXChooseFBConfig(), skip attributes whose value is
+ * GLX_DONT_CARE, unless it's GLX_LEVEL (which can legitimately be
+ * a negative value).
+ *
+ * From page 17 (23 of the pdf) of the GLX 1.4 spec:
+ * GLX DONT CARE may be specified for all attributes except GLX LEVEL.
+ */
+ parselist += 2;
+ continue;
+ }
+
switch (*parselist) {
case GLX_USE_GL:
if (fbConfig) {
* GLX_ARB_multisample
*/
case GLX_SAMPLE_BUFFERS_ARB:
- /* ms not supported */
- return NULL;
case GLX_SAMPLES_ARB:
- /* ms not supported */
- return NULL;
+ parselist++;
+ if (*parselist++ != 0) {
+ /* ms not supported */
+ return NULL;
+ }
+ break;
/*
* FBConfig attribs.
/* we only support one size of stencil and accum buffers. */
if (stencil_size > 0)
- stencil_size = STENCIL_BITS;
+ stencil_size = 8;
if (accumRedSize > 0 ||
accumGreenSize > 0 ||
if (b) {
XMesaDestroyBuffer(b);
}
- else if (_mesa_getenv("MESA_DEBUG")) {
+ else if (getenv("MESA_DEBUG")) {
_mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
}
}
PUBLIC void
glXDestroyContext( Display *dpy, GLXContext ctx )
{
- GLXContext glxCtx = ctx;
- (void) dpy;
- MakeCurrent_PrevContext = 0;
- MakeCurrent_PrevDrawable = 0;
- MakeCurrent_PrevReadable = 0;
- MakeCurrent_PrevDrawBuffer = 0;
- MakeCurrent_PrevReadBuffer = 0;
- XMesaDestroyContext( glxCtx->xmesaContext );
- XMesaGarbageCollect();
- free(glxCtx);
+ if (ctx) {
+ GLXContext glxCtx = ctx;
+ (void) dpy;
+ MakeCurrent_PrevContext = 0;
+ MakeCurrent_PrevDrawable = 0;
+ MakeCurrent_PrevReadable = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
+ MakeCurrent_PrevReadBuffer = 0;
+ XMesaDestroyContext( glxCtx->xmesaContext );
+ XMesaGarbageCollect();
+ free(glxCtx);
+ }
}
PUBLIC Bool
glXIsDirect( Display *dpy, GLXContext ctx )
{
- GLXContext glxCtx = ctx;
- (void) ctx;
- return glxCtx->isDirect;
+ return ctx ? ctx->isDirect : False;
}
if (buffer) {
XMesaSwapBuffers(buffer);
}
- else if (_mesa_getenv("MESA_DEBUG")) {
+ else if (getenv("MESA_DEBUG")) {
_mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
(int) drawable);
}
if (buffer) {
XMesaCopySubBuffer(buffer, x, y, width, height);
}
- else if (_mesa_getenv("MESA_DEBUG")) {
+ else if (getenv("MESA_DEBUG")) {
_mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
}
}
if (width == 0 || height == 0)
return 0;
- if (width > MAX_WIDTH || height > MAX_HEIGHT) {
+ if (width > PBUFFER_MAX_SIZE || height > PBUFFER_MAX_SIZE) {
/* If allocation would have failed and GLX_LARGEST_PBUFFER is set,
* allocate the largest possible buffer.
*/
if (useLargest) {
- width = MAX_WIDTH;
- height = MAX_HEIGHT;
+ width = PBUFFER_MAX_SIZE;
+ height = PBUFFER_MAX_SIZE;
}
}
{
GLuint width, height;
XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
- if (!xmbuf)
+ if (!xmbuf) {
+ generate_error(dpy, GLXBadDrawable, draw, X_GLXGetDrawableAttributes, False);
return;
+ }
/* make sure buffer's dimensions are up to date */
xmesa_get_window_size(dpy, xmbuf, &width, &height);
#endif
default:
- return; /* raise BadValue error */
+ generate_error(dpy, BadValue, 0, X_GLXCreateContextAtrribsARB, true);
+ return;
}
}
/*** GLX_ARB_create_context ***/
+
GLXContext
glXCreateContextAttribsARB(Display *dpy, GLXFBConfig config,
GLXContext shareCtx, Bool direct,
Bool done = False;
const int contextFlagsAll = (GLX_CONTEXT_DEBUG_BIT_ARB |
GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB);
+ GLXContext ctx;
/* parse attrib_list */
for (i = 0; !done && attrib_list && attrib_list[i]; i++) {
break;
default:
/* bad attribute */
- /* XXX generate BadValue X Error */
+ generate_error(dpy, BadValue, 0, X_GLXCreateContextAtrribsARB, True);
return NULL;
}
}
/* check contextFlags */
if (contextFlags & ~contextFlagsAll) {
- return NULL; /* generate BadValue X Error */
+ generate_error(dpy, BadValue, 0, X_GLXCreateContextAtrribsARB, True);
+ return NULL;
}
/* check profileMask */
if (profileMask != GLX_CONTEXT_CORE_PROFILE_BIT_ARB &&
- profileMask != GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB) {
- return NULL; /* generate BadValue X Error */
+ profileMask != GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB &&
+ profileMask != GLX_CONTEXT_ES_PROFILE_BIT_EXT) {
+ generate_error(dpy, GLXBadProfileARB, 0, X_GLXCreateContextAtrribsARB, False);
+ return NULL;
}
- /* check version (generate BadMatch if bad) */
- switch (majorVersion) {
- case 1:
- if (minorVersion < 0 || minorVersion > 5)
- return NULL;
- break;
- case 2:
- if (minorVersion < 0 || minorVersion > 1)
- return NULL;
- break;
- case 3:
- if (minorVersion < 0 || minorVersion > 2)
- return NULL;
- break;
- case 4:
- if (minorVersion < 0 || minorVersion > 0)
- return NULL;
- break;
- default:
+ /* check renderType */
+ if (renderType != GLX_RGBA_TYPE &&
+ renderType != GLX_COLOR_INDEX_TYPE) {
+ generate_error(dpy, BadValue, 0, X_GLXCreateContextAtrribsARB, True);
+ return NULL;
+ }
+
+ /* check version */
+ if (majorVersion <= 0 ||
+ minorVersion < 0 ||
+ (profileMask != GLX_CONTEXT_ES_PROFILE_BIT_EXT &&
+ ((majorVersion == 1 && minorVersion > 5) ||
+ (majorVersion == 2 && minorVersion > 1) ||
+ (majorVersion == 3 && minorVersion > 3) ||
+ (majorVersion == 4 && minorVersion > 5) ||
+ majorVersion > 4))) {
+ generate_error(dpy, BadMatch, 0, X_GLXCreateContextAtrribsARB, True);
+ return NULL;
+ }
+ if (profileMask == GLX_CONTEXT_ES_PROFILE_BIT_EXT &&
+ ((majorVersion == 1 && minorVersion > 1) ||
+ (majorVersion == 2 && minorVersion > 0) ||
+ (majorVersion == 3 && minorVersion > 1) ||
+ majorVersion > 3)) {
+ /* GLX_EXT_create_context_es2_profile says nothing to justifying a
+ * different error code for invalid ES versions, but this is what NVIDIA
+ * does and piglit expects.
+ */
+ generate_error(dpy, GLXBadProfileARB, 0, X_GLXCreateContextAtrribsARB, False);
return NULL;
}
if ((contextFlags & GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB) &&
- majorVersion < 3)
- return NULL; /* generate GLXBadProfileARB */
+ majorVersion < 3) {
+ generate_error(dpy, BadMatch, 0, X_GLXCreateContextAtrribsARB, True);
+ return NULL;
+ }
- if (renderType == GLX_COLOR_INDEX_TYPE && majorVersion >= 3)
- return NULL; /* generate BadMatch */
+ if (renderType == GLX_COLOR_INDEX_TYPE && majorVersion >= 3) {
+ generate_error(dpy, BadMatch, 0, X_GLXCreateContextAtrribsARB, True);
+ return NULL;
+ }
- return create_context(dpy, xmvis,
- shareCtx ? shareCtx->xmesaContext : NULL,
- direct,
- majorVersion, minorVersion,
- profileMask, contextFlags);
+ ctx = create_context(dpy, xmvis,
+ shareCtx ? shareCtx->xmesaContext : NULL,
+ direct,
+ majorVersion, minorVersion,
+ profileMask, contextFlags);
+ if (!ctx) {
+ generate_error(dpy, GLXBadFBConfig, 0, X_GLXCreateContextAtrribsARB, False);
+ }
+
+ return ctx;
}
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