fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-01 09:40:08 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

dri_util: Mostly stub implementation of dri2CreateContextAttribs

Browse source 
This adds the function and modifies dri2CreateNewContextForAPI to call
it.  At this point only version 2 of the DRI2 API is advertised to the
loader.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Ian Romanick 2011-11-30 18:05:36 -08:00
parent c9d25cf73f
commit d9de33c304
1 changed files with 79 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

91
src/mesa/drivers/dri/common/dri_util.c
View file

@ -134,35 +134,91 @@ static const __DRIextension **driGetExtensions(__DRIscreen *psp)
/*@{*/
static __DRIcontext *
dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
const __DRIconfig *config,
__DRIcontext *shared, void *data)
dri2CreateContextAttribs(__DRIscreen *screen, int api,
const __DRIconfig *config,
__DRIcontext *shared,
unsigned num_attribs,
const uint32_t *attribs,
unsigned *error,
void *data)
{
__DRIcontext *context;
const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
void *shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
gl_api mesa_api;
unsigned major_version = 1;
unsigned minor_version = 0;
uint32_t flags = 0;
if (!(screen->api_mask & (1 << api)))
assert((num_attribs == 0) || (attribs != NULL));
if (!(screen->api_mask & (1 << api))) {
*error = __DRI_CTX_ERROR_BAD_API;
return NULL;
}
switch (api) {
case __DRI_API_OPENGL:
mesa_api = API_OPENGL;
break;
mesa_api = API_OPENGL;
break;
case __DRI_API_GLES:
mesa_api = API_OPENGLES;
break;
mesa_api = API_OPENGLES;
break;
case __DRI_API_GLES2:
mesa_api = API_OPENGLES2;
break;
mesa_api = API_OPENGLES2;
break;
case __DRI_API_OPENGL_CORE:
default:
*error = __DRI_CTX_ERROR_BAD_API;
return NULL;
}
if (mesa_api != API_OPENGL && num_attribs != 0) {
*error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
assert(!"Should not get here.");
return NULL;
}
for (unsigned i = 0; i < num_attribs; i++) {
switch (attribs[i * 2]) {
case __DRI_CTX_ATTRIB_MAJOR_VERSION:
major_version = attribs[i * 2 + 1];
break;
case __DRI_CTX_ATTRIB_MINOR_VERSION:
minor_version = attribs[i * 2 + 1];
break;
case __DRI_CTX_ATTRIB_FLAGS:
flags = attribs[i * 2 + 1];
break;
default:
/* We can't create a context that satisfies the requirements of an
* attribute that we don't understand. Return failure.
*/
return NULL;
}
}
/* There are no forward-compatible contexts before OpenGL 3.0. The
* GLX_ARB_create_context spec says:
*
* "Forward-compatible contexts are defined only for OpenGL versions
* 3.0 and later."
*
* Moreover, Mesa can't fulfill the requirements of a forward-looking
* context. Return failure if a forward-looking context is requested.
*
* In Mesa, a debug context is the same as a regular context.
*/
if (major_version >= 3) {
if ((flags & ~__DRI_CTX_FLAG_DEBUG) != 0)
return NULL;
}
context = malloc(sizeof *context);
if (!context)
if (!context) {
*error = __DRI_CTX_ERROR_NO_MEMORY;
return NULL;
}
context->loaderPrivate = data;
@ -175,9 +231,20 @@ dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
return NULL;
}
*error = __DRI_CTX_ERROR_SUCCESS;
return context;
}
static __DRIcontext *
dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
const __DRIconfig *config,
__DRIcontext *shared, void *data)
{
unsigned error;
return dri2CreateContextAttribs(screen, api, config, shared, 0, NULL,
data, &error);
}
static __DRIcontext *
dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
@ -465,7 +532,7 @@ const __DRIdri2Extension driDRI2Extension = {
dri2CreateNewContextForAPI,
dri2AllocateBuffer,
dri2ReleaseBuffer,
NULL
dri2CreateContextAttribs
};
const __DRI2configQueryExtension dri2ConfigQueryExtension = {