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make COGL_FEATURE_FOUR_CLIP_PLANES a private feature

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Cogl doesn't currently expose public api for clip planes so it
doesn't make much sense to have this feature as part of the public api.
We can't break the api by removing the enum but at least we no longer
ever set the feature flag.

We now have a replacement private feature flag
COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES which cogl now checks for
internally.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Robert Bragg 2011-10-13 09:24:58 +01:00
parent abbd28f484
commit d045bea70e
4 changed files with 6 additions and 4 deletions
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3
cogl/cogl-clip-stack.c
View File

@ -828,7 +828,8 @@ _cogl_clip_stack_flush (CoglClipStack *stack,
modelview_stack =
_cogl_framebuffer_get_modelview_stack (framebuffer);
has_clip_planes = cogl_features_available (COGL_FEATURE_FOUR_CLIP_PLANES);
has_clip_planes =
ctx->private_feature_flags & COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES;
if (has_clip_planes)
disable_clip_planes ();

3
cogl/cogl-internal.h
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@ -130,7 +130,8 @@ typedef enum
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE = 1L<<0,
COGL_PRIVATE_FEATURE_MESA_PACK_INVERT = 1L<<1,
COGL_PRIVATE_FEATURE_STENCIL_BUFFER = 1L<<2,
COGL_PRIVATE_FEATURE_OFFSCREEN_BLIT = 1L<<3
COGL_PRIVATE_FEATURE_OFFSCREEN_BLIT = 1L<<3,
COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES = 1L<<4
} CoglPrivateFeatureFlags;
/* Sometimes when evaluating pipelines, either during comparisons or

2
cogl/driver/gl/cogl-gl.c
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@ -187,7 +187,7 @@ _cogl_gl_update_features (CoglContext *context,
GE( ctx, glGetIntegerv (GL_MAX_CLIP_PLANES, &max_clip_planes) );
if (max_clip_planes >= 4)
flags |= COGL_FEATURE_FOUR_CLIP_PLANES;
private_flags |= COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES;
if (context->glGenRenderbuffers)
flags |= COGL_FEATURE_OFFSCREEN;

2
cogl/driver/gles/cogl-gles.c
View File

@ -78,7 +78,7 @@ _cogl_gles_update_features (CoglContext *context,
int max_clip_planes;
GE( context, glGetIntegerv (GL_MAX_CLIP_PLANES, &max_clip_planes) );
if (max_clip_planes >= 4)
flags |= COGL_FEATURE_FOUR_CLIP_PLANES;
private_flags |= COGL_PRIVATE_FEATURE_FOUR_CLIP_PLANES;
}
#endif