Mesa (master): glx: add support for GLX_ARB_create_context_no_error (v3)
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Tue Mar 12 23:12:59 UTC 2019
Module: Mesa
Branch: master
Commit: acfd88204e886e671da97b895fd2d1ee39b61256
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=acfd88204e886e671da97b895fd2d1ee39b61256
Author: Grigori Goronzy <greg at chown.ath.cx>
Date: Thu Aug 3 20:07:58 2017 +0200
glx: add support for GLX_ARB_create_context_no_error (v3)
v2: Only reject no-error contexts for too-old GL if we're actually
trying to create a no-error context (Adam Jackson)
v3: Fix share contexts (Adam Jackson)
Reviewed-by: Adam Jackson <ajax at redhat.com>
Reviewed-by: Eric Anholt <eric at anholt.net>
---
src/glx/dri2_glx.c | 15 ++++++++++++++
src/glx/dri3_glx.c | 11 +++++++++++
src/glx/dri_common.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++-
src/glx/dri_common.h | 5 +++++
src/glx/drisw_glx.c | 6 ++++++
src/glx/glxclient.h | 6 ++++++
src/glx/glxextensions.c | 1 +
src/glx/glxextensions.h | 1 +
8 files changed, 96 insertions(+), 1 deletion(-)
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index d8c5ba25f04..d6a543c8da0 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -263,6 +263,10 @@ dri2_create_context_attribs(struct glx_screen *base,
&api, &reset, &release, error))
goto error_exit;
+ if (!dri2_check_no_error(flags, shareList, major_ver, error)) {
+ goto error_exit;
+ }
+
/* Check the renderType value */
if (!validate_renderType_against_config(config_base, renderType))
goto error_exit;
@@ -314,6 +318,9 @@ dri2_create_context_attribs(struct glx_screen *base,
*/
pcp->base.renderType = renderType;
+ if (flags & __DRI_CTX_FLAG_NO_ERROR)
+ pcp->base.noError = GL_TRUE;
+
pcp->driContext =
(*psc->dri2->createContextAttribs) (psc->driScreen,
api,
@@ -1164,6 +1171,14 @@ dri2BindExtensions(struct dri2_screen *psc, struct glx_display * priv,
__glXEnableDirectExtension(&psc->base,
"GLX_ARB_create_context_robustness");
+ /* DRI2 version 3 is also required because
+ * GLX_ARB_create_context_no_error requires GLX_ARB_create_context.
+ */
+ if (psc->dri2->base.version >= 3
+ && strcmp(extensions[i]->name, __DRI2_NO_ERROR) == 0)
+ __glXEnableDirectExtension(&psc->base,
+ "GLX_ARB_create_context_no_error");
+
/* DRI2 version 3 is also required because GLX_MESA_query_renderer
* requires GLX_ARB_create_context_profile.
*/
diff --git a/src/glx/dri3_glx.c b/src/glx/dri3_glx.c
index 298adc80ef1..9d023341e6b 100644
--- a/src/glx/dri3_glx.c
+++ b/src/glx/dri3_glx.c
@@ -259,6 +259,10 @@ dri3_create_context_attribs(struct glx_screen *base,
&reset, &release, error))
goto error_exit;
+ if (!dri2_check_no_error(flags, shareList, major_ver, error)) {
+ goto error_exit;
+ }
+
/* Check the renderType value */
if (!validate_renderType_against_config(config_base, render_type))
goto error_exit;
@@ -303,6 +307,9 @@ dri3_create_context_attribs(struct glx_screen *base,
* GLX_CONTEXT_*_BIT values.
*/
ctx_attribs[num_ctx_attribs++] = flags;
+
+ if (flags & __DRI_CTX_FLAG_NO_ERROR)
+ pcp->base.noError = GL_TRUE;
}
pcp->driContext =
@@ -780,6 +787,10 @@ dri3_bind_extensions(struct dri3_screen *psc, struct glx_display * priv,
__glXEnableDirectExtension(&psc->base,
"GLX_ARB_create_context_robustness");
+ if (strcmp(extensions[i]->name, __DRI2_NO_ERROR) == 0)
+ __glXEnableDirectExtension(&psc->base,
+ "GLX_ARB_create_context_no_error");
+
if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
psc->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
__glXEnableDirectExtension(&psc->base, "GLX_MESA_query_renderer");
diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index fb8a29f0993..2db29fd6abb 100644
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -427,6 +427,7 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
{
unsigned i;
bool got_profile = false;
+ int no_error = 0;
uint32_t profile;
*major_ver = 1;
@@ -459,6 +460,9 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
case GLX_CONTEXT_FLAGS_ARB:
*flags = attribs[i * 2 + 1];
break;
+ case GLX_CONTEXT_OPENGL_NO_ERROR_ARB:
+ no_error = attribs[i * 2 + 1];
+ break;
case GLX_CONTEXT_PROFILE_MASK_ARB:
profile = attribs[i * 2 + 1];
got_profile = true;
@@ -500,6 +504,10 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
}
}
+ if (no_error) {
+ *flags |= __DRI_CTX_FLAG_NO_ERROR;
+ }
+
if (!got_profile) {
if (*major_ver > 3 || (*major_ver == 3 && *minor_ver >= 2))
*api = __DRI_API_OPENGL_CORE;
@@ -540,7 +548,8 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
/* Unknown flag value.
*/
if (*flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_FORWARD_COMPATIBLE
- | __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS)) {
+ | __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS
+ | __DRI_CTX_FLAG_NO_ERROR)) {
*error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
return false;
}
@@ -565,4 +574,45 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
return true;
}
+_X_HIDDEN bool
+dri2_check_no_error(uint32_t flags, struct glx_context *share_context,
+ int major, unsigned *error)
+{
+ Bool noError = flags & __DRI_CTX_FLAG_NO_ERROR;
+
+ /* The KHR_no_error specs say:
+ *
+ * Requires OpenGL ES 2.0 or OpenGL 2.0.
+ */
+ if (noError && major < 2) {
+ *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
+ return false;
+ }
+
+ /* The GLX_ARB_create_context_no_error specs say:
+ *
+ * BadMatch is generated if the value of GLX_CONTEXT_OPENGL_NO_ERROR_ARB
+ * used to create <share_context> does not match the value of
+ * GLX_CONTEXT_OPENGL_NO_ERROR_ARB for the context being created.
+ */
+ if (share_context && !!share_context->noError != !!noError) {
+ *error = __DRI_CTX_ERROR_BAD_FLAG;
+ return false;
+ }
+
+ /* The GLX_ARB_create_context_no_error specs say:
+ *
+ * BadMatch is generated if the GLX_CONTEXT_OPENGL_NO_ERROR_ARB is TRUE at
+ * the same time as a debug or robustness context is specified.
+ *
+ */
+ if (noError && ((flags & __DRI_CTX_FLAG_DEBUG) ||
+ (flags & __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS))) {
+ *error = __DRI_CTX_ERROR_BAD_FLAG;
+ return false;
+ }
+
+ return true;
+}
+
#endif /* GLX_DIRECT_RENDERING */
diff --git a/src/glx/dri_common.h b/src/glx/dri_common.h
index 363f15bf9bb..1b74397063b 100644
--- a/src/glx/dri_common.h
+++ b/src/glx/dri_common.h
@@ -78,4 +78,9 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
uint32_t *render_type, uint32_t *flags, unsigned *api,
int *reset, int *release, unsigned *error);
+extern bool
+dri2_check_no_error(uint32_t flags, struct glx_context *share_context,
+ int major, unsigned *error);
+
+
#endif /* _DRI_COMMON_H */
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index 48c03ca42e0..c63b097a71a 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -599,6 +599,9 @@ drisw_create_context_attribs(struct glx_screen *base,
&api, &reset, &release, error))
return NULL;
+ if (!dri2_check_no_error(flags, shareList, major_ver, error))
+ return NULL;
+
/* Check the renderType value */
if (!validate_renderType_against_config(config_base, renderType)) {
return NULL;
@@ -641,6 +644,9 @@ drisw_create_context_attribs(struct glx_screen *base,
* GLX_CONTEXT_*_BIT values.
*/
ctx_attribs[num_ctx_attribs++] = flags;
+
+ if (flags & __DRI_CTX_FLAG_NO_ERROR)
+ pcp->base.noError = GL_TRUE;
}
pcp->base.renderType = renderType;
diff --git a/src/glx/glxclient.h b/src/glx/glxclient.h
index df51f2b8ce4..3e8274e1c3a 100644
--- a/src/glx/glxclient.h
+++ b/src/glx/glxclient.h
@@ -437,6 +437,12 @@ struct glx_context
*/
unsigned long thread_refcount;
+ /**
+ * GLX_ARB_create_context_no_error setting for this context.
+ * This needs to be kept here to enforce shared context rules.
+ */
+ Bool noError;
+
char gl_extension_bits[__GL_EXT_BYTES];
};
diff --git a/src/glx/glxextensions.c b/src/glx/glxextensions.c
index e85a8c92846..f6a7a31a219 100644
--- a/src/glx/glxextensions.c
+++ b/src/glx/glxextensions.c
@@ -134,6 +134,7 @@ struct extension_info
static const struct extension_info known_glx_extensions[] = {
{ GLX(ARB_context_flush_control), VER(0,0), Y, N, N, N },
{ GLX(ARB_create_context), VER(0,0), Y, N, N, N },
+ { GLX(ARB_create_context_no_error), VER(1,4), Y, N, N, N },
{ GLX(ARB_create_context_profile), VER(0,0), Y, N, N, N },
{ GLX(ARB_create_context_robustness), VER(0,0), Y, N, N, N },
{ GLX(ARB_fbconfig_float), VER(0,0), Y, Y, N, N },
diff --git a/src/glx/glxextensions.h b/src/glx/glxextensions.h
index c6428d46b4d..bbdb00dd631 100644
--- a/src/glx/glxextensions.h
+++ b/src/glx/glxextensions.h
@@ -39,6 +39,7 @@ enum
{
ARB_context_flush_control_bit = 0,
ARB_create_context_bit,
+ ARB_create_context_no_error_bit,
ARB_create_context_profile_bit,
ARB_create_context_robustness_bit,
ARB_fbconfig_float_bit,
More information about the mesa-commit
mailing list