sungmg/mutter-performance-source
1
0
Fork 0
Code Activity
mutter-performance-source/cogl/cogl-private.h

45 lines
1.3 KiB
C
Raw Normal View History

cogl: Don't flush the journal when flushing clip state Flushing the clip state no longer does anything that would cause the journal to flush. The clip state is only flushed when flushing the framebuffer state and in all cases this ends up flushing the journal in one way or another anyway. Avoiding flushing the journal will make it easier to log the clip state in the journal. Previously when trying to set up a rectangle clip that can't be scissored or when using a path clip the code would use cogl_rectangle as part of the process to fill the stencil buffer. This is now changed to use a new internal _cogl_rectangle_immediate function which directly uses the vertex array API to draw a triangle strip without affecting the journal. This should be just as efficient as the previous journalled code because these places would end up flushing the journal immediately before and after submitting the single rectangle anyway and flushing the journal always creates a new vbo so it would effectively do the same thing. Similarly there is also a new internal _cogl_clear function that does not flush the journal.
2010-11-02 17:15:06 +00:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2010 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_PRIVATE_H__
#define __COGL_PRIVATE_H__
G_BEGIN_DECLS
void
_cogl_clear (const CoglColor *color, unsigned long buffers);
Add an internal _cogl_read_pixels_with_rowstride This is the same as _cogl_read_pixels except that it takes a rowstride parameter for the destination buffer. Under OpenGL setting the rowstride this will end up calling GL_ROW_LENGTH so that the buffer region can be directly written to. Under GLES GL_ROW_LENGTH is not supported so it will use an intermediate buffer as it does if the format is not GL_RGBA. cogl_read_pixels now just calls the full version of the function with the rowstride set to width*bpp. http://bugzilla.clutter-project.org/show_bug.cgi?id=2414
2010-11-17 15:38:20 +00:00
void
_cogl_read_pixels_with_rowstride (int x,
int y,
int width,
int height,
CoglReadPixelsFlags source,
CoglPixelFormat format,
guint8 *pixels,
int rowstride);
cogl: Don't flush the journal when flushing clip state Flushing the clip state no longer does anything that would cause the journal to flush. The clip state is only flushed when flushing the framebuffer state and in all cases this ends up flushing the journal in one way or another anyway. Avoiding flushing the journal will make it easier to log the clip state in the journal. Previously when trying to set up a rectangle clip that can't be scissored or when using a path clip the code would use cogl_rectangle as part of the process to fill the stencil buffer. This is now changed to use a new internal _cogl_rectangle_immediate function which directly uses the vertex array API to draw a triangle strip without affecting the journal. This should be just as efficient as the previous journalled code because these places would end up flushing the journal immediately before and after submitting the single rectangle anyway and flushing the journal always creates a new vbo so it would effectively do the same thing. Similarly there is also a new internal _cogl_clear function that does not flush the journal.
2010-11-02 17:15:06 +00:00
G_END_DECLS
#endif /* __COGL_PRIVATE_H__ */
Copy permalink