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-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.c107
-rw-r--r--mesalib/src/mesa/drivers/dri/common/dri_util.h4
-rw-r--r--mesalib/src/mesa/drivers/dri/common/drisw_util.c76
3 files changed, 161 insertions, 26 deletions
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.c b/mesalib/src/mesa/drivers/dri/common/dri_util.c
index a153d525d..db7322ec4 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.c
@@ -134,35 +134,98 @@ 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.
+ */
+ assert(!"Should not get here.");
+ *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
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 ((flags & __DRI_CTX_FLAG_FORWARD_COMPATIBLE) != 0) {
+ *error = __DRI_CTX_ERROR_BAD_FLAG;
+ return NULL;
+ }
+
+ if ((flags & ~__DRI_CTX_FLAG_DEBUG) != 0) {
+ *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
+ return NULL;
}
context = malloc(sizeof *context);
- if (!context)
+ if (!context) {
+ *error = __DRI_CTX_ERROR_NO_MEMORY;
return NULL;
+ }
context->loaderPrivate = data;
@@ -170,14 +233,27 @@ dri2CreateNewContextForAPI(__DRIscreen *screen, int api,
context->driDrawablePriv = NULL;
context->driReadablePriv = NULL;
- if (!driDriverAPI.CreateContext(mesa_api, modes, context, shareCtx) ) {
+ if (!driDriverAPI.CreateContext(mesa_api, modes, context,
+ major_version, minor_version,
+ flags, error, shareCtx) ) {
free(context);
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,
+ &error, data);
+}
static __DRIcontext *
dri2CreateNewContext(__DRIscreen *screen, const __DRIconfig *config,
@@ -454,10 +530,7 @@ const __DRIcoreExtension driCoreExtension = {
/** DRI2 interface */
const __DRIdri2Extension driDRI2Extension = {
- /* Force the version to 2 because the underlying drivers don't (can't!)
- * support the extra requirements of CreateContextAttribs.
- */
- { __DRI_DRI2, 2 },
+ { __DRI_DRI2, __DRI_DRI2_VERSION },
dri2CreateNewScreen,
dri2CreateNewDrawable,
dri2CreateNewContext,
@@ -465,7 +538,7 @@ const __DRIdri2Extension driDRI2Extension = {
dri2CreateNewContextForAPI,
dri2AllocateBuffer,
dri2ReleaseBuffer,
- NULL
+ dri2CreateContextAttribs
};
const __DRI2configQueryExtension dri2ConfigQueryExtension = {
diff --git a/mesalib/src/mesa/drivers/dri/common/dri_util.h b/mesalib/src/mesa/drivers/dri/common/dri_util.h
index bebb021f6..900f04853 100644
--- a/mesalib/src/mesa/drivers/dri/common/dri_util.h
+++ b/mesalib/src/mesa/drivers/dri/common/dri_util.h
@@ -84,6 +84,10 @@ struct __DriverAPIRec {
GLboolean (*CreateContext)(gl_api api,
const struct gl_config *glVis,
__DRIcontext *driContextPriv,
+ unsigned major_version,
+ unsigned minor_version,
+ uint32_t flags,
+ unsigned *error,
void *sharedContextPrivate);
void (*DestroyContext)(__DRIcontext *driContextPriv);
diff --git a/mesalib/src/mesa/drivers/dri/common/drisw_util.c b/mesalib/src/mesa/drivers/dri/common/drisw_util.c
index 76b41231a..0ec124ae5 100644
--- a/mesalib/src/mesa/drivers/dri/common/drisw_util.c
+++ b/mesalib/src/mesa/drivers/dri/common/drisw_util.c
@@ -94,14 +94,26 @@ static const __DRIextension **driGetExtensions(__DRIscreen *psp)
*/
static __DRIcontext *
-driCreateNewContextForAPI(__DRIscreen *psp, int api,
- const __DRIconfig *config,
- __DRIcontext *shared, void *data)
+driCreateContextAttribs(__DRIscreen *screen, int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared,
+ unsigned num_attribs,
+ const uint32_t *attribs,
+ unsigned *error,
+ void *data)
{
__DRIcontext *pcp;
const struct gl_config *modes = (config != NULL) ? &config->modes : NULL;
void * const shareCtx = (shared != NULL) ? shared->driverPrivate : NULL;
gl_api mesa_api;
+ unsigned major_version = 1;
+ unsigned minor_version = 0;
+ uint32_t flags = 0;
+
+ /* Either num_attribs is zero and attribs is NULL, or num_attribs is not
+ * zero and attribs is not NULL.
+ */
+ assert((num_attribs == 0) == (attribs == NULL));
switch (api) {
case __DRI_API_OPENGL:
@@ -113,21 +125,59 @@ driCreateNewContextForAPI(__DRIscreen *psp, int api,
case __DRI_API_GLES2:
mesa_api = API_OPENGLES2;
break;
+ case __DRI_API_OPENGL_CORE:
default:
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;
+ }
+
pcp = CALLOC_STRUCT(__DRIcontextRec);
if (!pcp)
return NULL;
pcp->loaderPrivate = data;
- pcp->driScreenPriv = psp;
+ pcp->driScreenPriv = screen;
pcp->driDrawablePriv = NULL;
pcp->driReadablePriv = NULL;
- if (!driDriverAPI.CreateContext(mesa_api, modes, pcp, shareCtx)) {
+ if (!driDriverAPI.CreateContext(mesa_api, modes, pcp,
+ major_version, minor_version,
+ flags, error, shareCtx)) {
FREE(pcp);
return NULL;
}
@@ -136,6 +186,17 @@ driCreateNewContextForAPI(__DRIscreen *psp, int api,
}
static __DRIcontext *
+driCreateNewContextForAPI(__DRIscreen *psp, int api,
+ const __DRIconfig *config,
+ __DRIcontext *shared, void *data)
+{
+ unsigned error;
+
+ return driCreateContextAttribs(psp, api, config, shared, 0, NULL,
+ &error, data);
+}
+
+static __DRIcontext *
driCreateNewContext(__DRIscreen *psp, const __DRIconfig *config,
__DRIcontext *shared, void *data)
{
@@ -288,12 +349,9 @@ const __DRIcoreExtension driCoreExtension = {
};
const __DRIswrastExtension driSWRastExtension = {
- /* Force the version to 2 because the underlying driver don't (can't!)
- * support the extra requirements of CreateContextAttribs.
- */
{ __DRI_SWRAST, __DRI_SWRAST_VERSION },
driCreateNewScreen,
driCreateNewDrawable,
driCreateNewContextForAPI,
- NULL
+ driCreateContextAttribs
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 07:15:33 +0000