diff options
| author | Ian Romanick <[email protected]> | 2012-08-17 16:03:06 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2012-08-29 15:09:36 -0700 |
| commit | 7e1cab09a155a0f986342323624f460340de355f (patch) | |
| tree | 17ba260a01f1c74bb7bc4ec245f20abbfa2ad21b /src | |
| parent | d638da23d2ec2e9c52655b1ea138249e7f8bcccb (diff) | |
mesa: Only FRONT_AND_BACK is allowed for PolygonMode in core context
Page 407 (page 423 of the PDF) of the OpenGL 3.0 spec says (in the list
of deprecated functionality):
"Separate polygon draw mode - PolygonMode face values of FRONT and
BACK; polygons are always drawn in the same mode, no matter which
face is being rasterized."
Also modify meta to not use FRONT or BACK in a core context.
Signed-off-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/common/meta.c | 10 | ||||
| -rw-r--r-- | src/mesa/main/polygon.c | 8 |
2 files changed, 16 insertions, 2 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index 29f35bfb89f..46cda731e1b 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -851,8 +851,14 @@ _mesa_meta_end(struct gl_context *ctx) } if (state & MESA_META_RASTERIZATION) { - _mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode); - _mesa_PolygonMode(GL_BACK, save->BackPolygonMode); + /* Core context requires that front and back mode be the same. + */ + if (ctx->API == API_OPENGL_CORE) { + _mesa_PolygonMode(GL_FRONT_AND_BACK, save->FrontPolygonMode); + } else { + _mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode); + _mesa_PolygonMode(GL_BACK, save->BackPolygonMode); + } if (ctx->API == API_OPENGL) { _mesa_set_enable(ctx, GL_POLYGON_STIPPLE, save->PolygonStipple); _mesa_set_enable(ctx, GL_POLYGON_SMOOTH, save->PolygonSmooth); diff --git a/src/mesa/main/polygon.c b/src/mesa/main/polygon.c index addca0228d5..d7d52daa89e 100644 --- a/src/mesa/main/polygon.c +++ b/src/mesa/main/polygon.c @@ -143,6 +143,10 @@ _mesa_PolygonMode( GLenum face, GLenum mode ) switch (face) { case GL_FRONT: + if (ctx->API == API_OPENGL_CORE) { + _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" ); + return; + } if (ctx->Polygon.FrontMode == mode) return; FLUSH_VERTICES(ctx, _NEW_POLYGON); @@ -157,6 +161,10 @@ _mesa_PolygonMode( GLenum face, GLenum mode ) ctx->Polygon.BackMode = mode; break; case GL_BACK: + if (ctx->API == API_OPENGL_CORE) { + _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" ); + return; + } if (ctx->Polygon.BackMode == mode) return; FLUSH_VERTICES(ctx, _NEW_POLYGON); |