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glx: Optionally call DRI2 createContextAttribs from __glXDRIscreenCreateContext

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Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
This commit is contained in:
Ian Romanick 2011-12-05 13:52:01 -08:00
parent 0a9226376c
commit 8b8cd6f6f4
1 changed files with 151 additions and 5 deletions
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156
glx/glxdri2.c
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@ -47,6 +47,7 @@
#include "glxserver.h"
#include "glxutil.h"
#include "glxdricommon.h"
#include <GL/glxtokens.h>
#include "glapitable.h"
#include "glapi.h"
@ -377,6 +378,143 @@ __glXDRIscreenDestroy(__GLXscreen * baseScreen)
free(screen);
}
static Bool
dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
unsigned *major_ver, unsigned *minor_ver,
uint32_t *flags, unsigned *error)
{
unsigned i;
if (num_attribs == 0)
return True;
if (attribs == NULL) {
*error = BadImplementation;
return False;
}
*major_ver = 1;
*minor_ver = 0;
for (i = 0; i < num_attribs; i++) {
switch (attribs[i * 2]) {
case GLX_CONTEXT_MAJOR_VERSION_ARB:
*major_ver = attribs[i * 2 + 1];
break;
case GLX_CONTEXT_MINOR_VERSION_ARB:
*minor_ver = attribs[i * 2 + 1];
break;
case GLX_CONTEXT_FLAGS_ARB:
*flags = attribs[i * 2 + 1];
break;
case GLX_RENDER_TYPE:
break;
default:
/* If an unknown attribute is received, fail.
*/
*error = BadValue;
return False;
}
}
/* Unknown flag value.
*/
if (*flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE)) {
*error = BadValue;
return False;
}
*error = Success;
return True;
}
static void
create_driver_context(__GLXDRIcontext * context,
__GLXDRIscreen * screen,
__GLXDRIconfig * config,
__DRIcontext * driShare,
unsigned num_attribs,
const uint32_t *attribs,
int *error)
{
context->driContext = NULL;
#if __DRI_DRI2_VERSION >= 3
if (screen->dri2->base.version >= 3) {
uint32_t ctx_attribs[3 * 2];
unsigned num_ctx_attribs = 0;
unsigned dri_err = 0;
unsigned major_ver;
unsigned minor_ver;
uint32_t flags;
if (num_attribs != 0) {
if (!dri2_convert_glx_attribs(num_attribs, attribs,
&major_ver, &minor_ver,
&flags, (unsigned *) error))
return NULL;
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
ctx_attribs[num_ctx_attribs++] = major_ver;
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
ctx_attribs[num_ctx_attribs++] = minor_ver;
if (flags != 0) {
ctx_attribs[num_ctx_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
/* The current __DRI_CTX_FLAG_* values are identical to the
* GLX_CONTEXT_*_BIT values.
*/
ctx_attribs[num_ctx_attribs++] = flags;
}
}
context->driContext =
(*screen->dri2->createContextAttribs)(screen->driScreen,
__DRI_API_OPENGL,
config->driConfig,
driShare,
num_ctx_attribs / 2,
ctx_attribs,
&dri_err,
context);
switch (dri_err) {
case __DRI_CTX_ERROR_SUCCESS:
*error = Success;
break;
case __DRI_CTX_ERROR_NO_MEMORY:
*error = BadAlloc;
break;
case __DRI_CTX_ERROR_BAD_API:
*error = __glXError(GLXBadProfileARB);
break;
case __DRI_CTX_ERROR_BAD_VERSION:
case __DRI_CTX_ERROR_BAD_FLAG:
*error = __glXError(GLXBadFBConfig);
break;
case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
case __DRI_CTX_ERROR_UNKNOWN_FLAG:
default:
*error = BadValue;
break;
}
return;
}
#endif
if (num_attribs != 0) {
*error = BadValue;
return;
}
context->driContext =
(*screen->dri2->createNewContext) (screen->driScreen,
config->driConfig,
driShare, context);
}
static __GLXcontext *
__glXDRIscreenCreateContext(__GLXscreen * baseScreen,
__GLXconfig * glxConfig,
@ -397,8 +535,10 @@ __glXDRIscreenCreateContext(__GLXscreen * baseScreen,
driShare = NULL;
context = calloc(1, sizeof *context);
if (context == NULL)
if (context == NULL) {
*error = BadAlloc;
return NULL;
}
context->base.destroy = __glXDRIcontextDestroy;
context->base.makeCurrent = __glXDRIcontextMakeCurrent;
@ -407,10 +547,8 @@ __glXDRIscreenCreateContext(__GLXscreen * baseScreen,
context->base.textureFromPixmap = &__glXDRItextureFromPixmap;
context->base.wait = __glXDRIcontextWait;
context->driContext =
(*screen->dri2->createNewContext) (screen->driScreen,
config->driConfig,
driShare, context);
create_driver_context(context, screen, config, driShare, num_attribs,
attribs, error);
if (context->driContext == NULL) {
free(context);
return NULL;
@ -646,6 +784,14 @@ initializeExtensions(__GLXDRIscreen * screen)
__glXEnableExtension(screen->glx_enable_bits, "GLX_INTEL_swap_event");
LogMessage(X_INFO, "AIGLX: enabled GLX_INTEL_swap_event\n");
#if __DRI_DRI2_VERSION >= 3
if (screen->dri2->base.version >= 3) {
__glXEnableExtension(screen->glx_enable_bits,
"GLX_ARB_create_context");
LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_create_context\n");
}
#endif
if (DRI2HasSwapControl(pScreen)) {
__glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control");
__glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control");