c460786e9e
Update the GLES 2.0 backend to the new COGL API after the breakage introduced by the journal. Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009 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, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __COGL_TEXTURE_H
|
|
#define __COGL_TEXTURE_H
|
|
|
|
#include "cogl-bitmap-private.h"
|
|
#include "cogl-material-private.h"
|
|
#include "cogl-handle.h"
|
|
|
|
typedef struct _CoglTexture CoglTexture;
|
|
typedef struct _CoglTexSliceSpan CoglTexSliceSpan;
|
|
typedef struct _CoglSpanIter CoglSpanIter;
|
|
typedef struct _CoglTexturePixel CoglTexturePixel;
|
|
|
|
struct _CoglTexSliceSpan
|
|
{
|
|
gint start;
|
|
gint size;
|
|
gint waste;
|
|
};
|
|
|
|
struct _CoglSpanIter
|
|
{
|
|
gint index;
|
|
GArray *array;
|
|
CoglTexSliceSpan *span;
|
|
float pos;
|
|
float next_pos;
|
|
float origin;
|
|
float cover_start;
|
|
float cover_end;
|
|
float intersect_start;
|
|
float intersect_end;
|
|
float intersect_start_local;
|
|
float intersect_end_local;
|
|
gboolean intersects;
|
|
};
|
|
|
|
/* This is used to store the first pixel of each slice. This is only
|
|
used when glGenerateMipmap is not available */
|
|
struct _CoglTexturePixel
|
|
{
|
|
/* We need to store the format of the pixel because we store the
|
|
data in the source format which might end up being different for
|
|
each slice if a subregion is updated with a different format */
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
guint8 data[4];
|
|
};
|
|
|
|
struct _CoglTexture
|
|
{
|
|
CoglHandleObject _parent;
|
|
CoglBitmap bitmap;
|
|
gboolean bitmap_owner;
|
|
GLenum gl_target;
|
|
GLenum gl_intformat;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
GArray *slice_x_spans;
|
|
GArray *slice_y_spans;
|
|
GArray *slice_gl_handles;
|
|
gint max_waste;
|
|
GLenum min_filter;
|
|
GLenum mag_filter;
|
|
gboolean is_foreign;
|
|
GLint wrap_mode;
|
|
gboolean auto_mipmap;
|
|
gboolean mipmaps_dirty;
|
|
|
|
/* This holds a copy of the first pixel in each slice. It is only
|
|
used to force an automatic update of the mipmaps when
|
|
glGenerateMipmap is not available. */
|
|
CoglTexturePixel *first_pixels;
|
|
};
|
|
|
|
/* To improve batching of geometry when submitting vertices to OpenGL we
|
|
* log the texture rectangles we want to draw to a journal, so when we
|
|
* later flush the journal we aim to batch data, and gl draw calls. */
|
|
typedef struct _CoglJournalEntry
|
|
{
|
|
CoglHandle material;
|
|
gint n_layers;
|
|
guint32 fallback_mask;
|
|
GLuint layer0_override_texture;
|
|
CoglMatrix model_view;
|
|
CoglMaterialFlushOptions flush_options;
|
|
} CoglJournalEntry;
|
|
|
|
CoglTexture*
|
|
_cogl_texture_pointer_from_handle (CoglHandle handle);
|
|
|
|
void
|
|
_cogl_texture_set_wrap_mode_parameter (CoglTexture *tex,
|
|
GLenum wrap_mode);
|
|
|
|
void
|
|
_cogl_texture_set_filters (CoglHandle handle,
|
|
GLenum min_filter,
|
|
GLenum mag_filter);
|
|
|
|
void
|
|
_cogl_texture_ensure_mipmaps (CoglHandle handle);
|
|
|
|
gboolean
|
|
_cogl_texture_span_has_waste (CoglTexture *tex,
|
|
gint x_span_index,
|
|
gint y_span_index);
|
|
|
|
void
|
|
_cogl_span_iter_begin (CoglSpanIter *iter,
|
|
GArray *array,
|
|
float origin,
|
|
float cover_start,
|
|
float cover_end);
|
|
|
|
gboolean
|
|
_cogl_span_iter_end (CoglSpanIter *iter);
|
|
|
|
void
|
|
_cogl_span_iter_next (CoglSpanIter *iter);
|
|
|
|
#endif /* __COGL_TEXTURE_H */
|