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meta: remove call to _meta_in_progress(), fix multisample enable/disable 

This partially reverts d638da23d2.

With gallium the meta code is not always built so the call to
_meta_in_progress() was unresolved.  Simply special-case the
GL_MULTISAMPLE case in the meta code.  There might be other special
cases in the future given all the differences between legacy GL,
core GL, GLES, etc.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=54234
and https://bugs.freedesktop.org/show_bug.cgi?id=54239

v2 (Paul Berry <stereotype441@gmail.com>): keep _meta_in_progress
function, since it's needed by the i965 driver, but don't call it from
core mesa.

Signed-off-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Brian Paul 2012-08-30 08:45:13 -06:00 committed by Paul Berry
parent aad7ccd261
commit 055093e33f
2 changed files with 32 additions and 8 deletions
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33
src/mesa/drivers/common/meta.c
View File

@ -437,6 +437,35 @@ _mesa_meta_free(struct gl_context *ctx)
}
/**
* This is an alternative to _mesa_set_enable() to handle some special cases.
* See comments inside.
*/
static void
meta_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
{
switch (cap) {
case GL_MULTISAMPLE:
/* We need to enable/disable multisample when using GLES but this enum
* is not supported there.
*/
if (ctx->Multisample.Enabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
ctx->Multisample.Enabled = state;
break;
default:
_mesa_problem(ctx, "Unexpected cap in _meta_set_enable()");
return;
}
if (ctx->Driver.Enable) {
ctx->Driver.Enable(ctx, cap, state);
}
}
/**
* Enter meta state. This is like a light-weight version of glPushAttrib
* but it also resets most GL state back to default values.
@ -755,7 +784,7 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
if (state & MESA_META_MULTISAMPLE) {
save->MultisampleEnabled = ctx->Multisample.Enabled;
if (ctx->Multisample.Enabled)
_mesa_set_enable(ctx, GL_MULTISAMPLE, GL_FALSE);
meta_set_enable(ctx, GL_MULTISAMPLE, GL_FALSE);
}
/* misc */
@ -1057,7 +1086,7 @@ _mesa_meta_end(struct gl_context *ctx)
if (state & MESA_META_MULTISAMPLE) {
if (ctx->Multisample.Enabled != save->MultisampleEnabled)
_mesa_set_enable(ctx, GL_MULTISAMPLE, save->MultisampleEnabled);
meta_set_enable(ctx, GL_MULTISAMPLE, save->MultisampleEnabled);
}
/* misc */

7
src/mesa/main/enable.c
View File

@ -765,13 +765,8 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
/* GL_ARB_multisample */
case GL_MULTISAMPLE_ARB:
/* Technically speaking, this should not be allowed for OpenGL ES 2.0
* or 3.0. However, meta really needs it.
*/
if (!_mesa_meta_in_progress(ctx) && !_mesa_is_desktop_gl(ctx)
&& ctx->API != API_OPENGLES)
if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
goto invalid_enum_error;
if (ctx->Multisample.Enabled == state)
return;
FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);