gallium: Add context profile support to st_api.

Add struct st_context_attribs to describe context profiles and
attributes.  Modify st_api::create_context to take the new struct
instead of an st_visual.

st_context_attribs can be used to support GLX_ARB_create_context_profile
and GLX_EXT_create_context_es2_profile in the future.  But the
motivation for doing it now is to be able to replace ST_API_OPENGL_ES1
and ST_API_OPENGL_ES2 by profiles.

Having 3 st_api's to provide OpenGL, OpenGL ES 1.1, and OpenGL ES 2.0 is
not a sane abstraction, since all of them share glapi for current
context/dispatch management.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/wgl/stw_context.c b/src/gallium/state_trackers/wgl/stw_context.c
index a0e14b96016..85878b46730 100644
--- a/src/gallium/state_trackers/wgl/stw_context.c
+++ b/src/gallium/state_trackers/wgl/stw_context.c
@@ -129,6 +129,7 @@ DrvCreateLayerContext(
 {
    int iPixelFormat;
    const struct stw_pixelformat_info *pfi;
+   struct st_context_attribs attribs;
    struct stw_context *ctx = NULL;
    
    if(!stw_dev)
@@ -150,8 +151,12 @@ DrvCreateLayerContext(
    ctx->hdc = hdc;
    ctx->iPixelFormat = iPixelFormat;
 
+   memset(&attribs, 0, sizeof(attribs));
+   attribs.profile = ST_PROFILE_DEFAULT;
+   attribs.visual = pfi->stvis;
+
    ctx->st = stw_dev->stapi->create_context(stw_dev->stapi,
-         stw_dev->smapi, &pfi->stvis, NULL);
+         stw_dev->smapi, &attribs, NULL);
    if (ctx->st == NULL) 
       goto no_st_ctx;