[Mesa-dev] [PATCH 3/3] glx: Allow to create any OpenGL ES version.
jfonseca at vmware.com
jfonseca at vmware.com
Wed Nov 12 04:37:26 PST 2014
From: José Fonseca <jfonseca at vmware.com>
The latest version of GLX_EXT_create_context_es2_profile states:
"If the version requested is a valid and supported OpenGL-ES version,
and the GLX_CONTEXT_ES_PROFILE_BIT_EXT bit is set in the
GLX_CONTEXT_PROFILE_MASK_ARB attribute (see below), then the context
returned will implement the OpenGL ES version requested."
We must also export EXT_create_context_es_profile too, as
EXT_create_context_es2_profile specification is crystal clear:
"NOTE: implementations of this extension must export BOTH extension
strings, for backwards compatibility with applications written
against version 1 of this extension."
Totally untested. (Just happened to noticed this while implementing
GLX_EXT_create_context_es2_profile for st/xlib.)
---
src/glx/dri_common.c | 32 ++++++++++++++++----------------
src/glx/drisw_glx.c | 2 ++
2 files changed, 18 insertions(+), 16 deletions(-)
diff --git a/src/glx/dri_common.c b/src/glx/dri_common.c
index 63c8de3..541abbb 100644
--- a/src/glx/dri_common.c
+++ b/src/glx/dri_common.c
@@ -544,9 +544,22 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
case GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB:
*api = __DRI_API_OPENGL;
break;
- case GLX_CONTEXT_ES2_PROFILE_BIT_EXT:
- *api = __DRI_API_GLES2;
- break;
+ case GLX_CONTEXT_ES_PROFILE_BIT_EXT:
+ switch (*major_ver) {
+ case 3:
+ *api = __DRI_API_GLES3;
+ break;
+ case 2:
+ *api = __DRI_API_GLES2;
+ break;
+ case 1:
+ *api = __DRI_API_GLES;
+ break;
+ default:
+ *error = __DRI_CTX_ERROR_BAD_API;
+ return false;
+ }
+ break;
default:
*error = __DRI_CTX_ERROR_BAD_API;
return false;
@@ -577,19 +590,6 @@ dri2_convert_glx_attribs(unsigned num_attribs, const uint32_t *attribs,
return false;
}
- /* The GLX_EXT_create_context_es2_profile spec says:
- *
- * "... If the version requested is 2.0, and the
- * GLX_CONTEXT_ES2_PROFILE_BIT_EXT bit is set in the
- * GLX_CONTEXT_PROFILE_MASK_ARB attribute (see below), then the context
- * returned will implement OpenGL ES 2.0. This is the only way in which
- * an implementation may request an OpenGL ES 2.0 context."
- */
- if (*api == __DRI_API_GLES2 && (*major_ver != 2 || *minor_ver != 0)) {
- *error = __DRI_CTX_ERROR_BAD_API;
- return false;
- }
-
*error = __DRI_CTX_ERROR_SUCCESS;
return true;
}
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index 749ceb0..b0be5d0 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -617,6 +617,8 @@ driswBindExtensions(struct drisw_screen *psc, const __DRIextension **extensions)
/* DRISW version >= 2 implies support for OpenGL ES 2.0.
*/
__glXEnableDirectExtension(&psc->base,
+ "GLX_EXT_create_context_es_profile");
+ __glXEnableDirectExtension(&psc->base,
"GLX_EXT_create_context_es2_profile");
}
--
2.1.1
More information about the mesa-dev
mailing list