mirror of
https://github.com/brl/mutter.git
synced 2024-09-19 22:15:54 -04:00
af7398788a
Texture allocation is now consistently handled lazily such that the internal format can now be controlled using cogl_texture_set_components() and cogl_texture_set_premultiplied() before allocating the texture with cogl_texture_allocate(). This means that the internal_format arguments to texture constructors are now redundant and since most of the texture constructors now can't ever fail the error arguments are also redundant. This now means we no longer use CoglPixelFormat in the public api for describing the internal format of textures which had been bad solution originally due to how specific CoglPixelFormat is which is missleading when we don't support such explicit control over the internal format. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 99a53c82e9ab0a1e5ee35941bf83dc334b1fbe87) Note: there are numerous API changes for functions currently marked as 'unstable' which we don't think are in use by anyone depending on a stable 1.x api. Compared to the original patch though this avoids changing the cogl_texture_rectangle_new_with_size() api which we know is used by Mutter.
403 lines
13 KiB
C
403 lines
13 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef __COGL_TEXTURE_PRIVATE_H
|
|
#define __COGL_TEXTURE_PRIVATE_H
|
|
|
|
#include "cogl-bitmap-private.h"
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-pipeline-private.h"
|
|
#include "cogl-spans.h"
|
|
#include "cogl-meta-texture.h"
|
|
#include "cogl-framebuffer.h"
|
|
|
|
#ifdef COGL_HAS_EGL_SUPPORT
|
|
#include "cogl-egl-defines.h"
|
|
#endif
|
|
|
|
typedef struct _CoglTextureVtable CoglTextureVtable;
|
|
|
|
/* Encodes three possibiloities result of transforming a quad */
|
|
typedef enum {
|
|
/* quad doesn't cross the boundaries of a texture */
|
|
COGL_TRANSFORM_NO_REPEAT,
|
|
/* quad crosses boundaries, hardware wrap mode can handle */
|
|
COGL_TRANSFORM_HARDWARE_REPEAT,
|
|
/* quad crosses boundaries, needs software fallback;
|
|
* for a sliced texture, this might not actually involve
|
|
* repeating, just a quad crossing multiple slices */
|
|
COGL_TRANSFORM_SOFTWARE_REPEAT,
|
|
} CoglTransformResult;
|
|
|
|
/* Flags given to the pre_paint method */
|
|
typedef enum {
|
|
/* The texture is going to be used with filters that require
|
|
mipmapping. This gives the texture the opportunity to
|
|
automatically update the mipmap tree */
|
|
COGL_TEXTURE_NEEDS_MIPMAP = 1
|
|
} CoglTexturePrePaintFlags;
|
|
|
|
struct _CoglTextureVtable
|
|
{
|
|
/* Virtual functions that must be implemented for a texture
|
|
backend */
|
|
|
|
CoglBool is_primitive;
|
|
|
|
CoglBool (* allocate) (CoglTexture *tex,
|
|
CoglError **error);
|
|
|
|
/* This should update the specified sub region of the texture with a
|
|
sub region of the given bitmap. The bitmap is not converted
|
|
before being set so the caller is expected to have called
|
|
_cogl_bitmap_convert_for_upload with a suitable internal_format
|
|
before passing here */
|
|
CoglBool (* set_region) (CoglTexture *tex,
|
|
int src_x,
|
|
int src_y,
|
|
int dst_x,
|
|
int dst_y,
|
|
int dst_width,
|
|
int dst_height,
|
|
int level,
|
|
CoglBitmap *bitmap,
|
|
CoglError **error);
|
|
|
|
/* This should copy the image data of the texture into @data. The
|
|
requested format will have been first passed through
|
|
ctx->texture_driver->find_best_gl_get_data_format so it should
|
|
always be a format that is valid for GL (ie, no conversion should
|
|
be necessary). */
|
|
CoglBool (* get_data) (CoglTexture *tex,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
uint8_t *data);
|
|
|
|
void (* foreach_sub_texture_in_region) (CoglTexture *tex,
|
|
float virtual_tx_1,
|
|
float virtual_ty_1,
|
|
float virtual_tx_2,
|
|
float virtual_ty_2,
|
|
CoglMetaTextureCallback callback,
|
|
void *user_data);
|
|
|
|
int (* get_max_waste) (CoglTexture *tex);
|
|
|
|
CoglBool (* is_sliced) (CoglTexture *tex);
|
|
|
|
CoglBool (* can_hardware_repeat) (CoglTexture *tex);
|
|
|
|
void (* transform_coords_to_gl) (CoglTexture *tex,
|
|
float *s,
|
|
float *t);
|
|
CoglTransformResult (* transform_quad_coords_to_gl) (CoglTexture *tex,
|
|
float *coords);
|
|
|
|
CoglBool (* get_gl_texture) (CoglTexture *tex,
|
|
GLuint *out_gl_handle,
|
|
GLenum *out_gl_target);
|
|
|
|
/* OpenGL driver specific virtual function */
|
|
void (* gl_flush_legacy_texobj_filters) (CoglTexture *tex,
|
|
GLenum min_filter,
|
|
GLenum mag_filter);
|
|
|
|
void (* pre_paint) (CoglTexture *tex, CoglTexturePrePaintFlags flags);
|
|
void (* ensure_non_quad_rendering) (CoglTexture *tex);
|
|
|
|
/* OpenGL driver specific virtual function */
|
|
void (* gl_flush_legacy_texobj_wrap_modes) (CoglTexture *tex,
|
|
GLenum wrap_mode_s,
|
|
GLenum wrap_mode_t,
|
|
GLenum wrap_mode_p);
|
|
|
|
CoglPixelFormat (* get_format) (CoglTexture *tex);
|
|
GLenum (* get_gl_format) (CoglTexture *tex);
|
|
|
|
CoglTextureType (* get_type) (CoglTexture *tex);
|
|
|
|
CoglBool (* is_foreign) (CoglTexture *tex);
|
|
|
|
/* Only needs to be implemented if is_primitive == TRUE */
|
|
void (* set_auto_mipmap) (CoglTexture *texture,
|
|
CoglBool value);
|
|
};
|
|
|
|
typedef enum _CoglTextureSoureType {
|
|
COGL_TEXTURE_SOURCE_TYPE_SIZED = 1,
|
|
COGL_TEXTURE_SOURCE_TYPE_BITMAP,
|
|
COGL_TEXTURE_SOURCE_TYPE_EGL_IMAGE,
|
|
COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN
|
|
} CoglTextureSourceType;
|
|
|
|
typedef struct _CoglTextureLoader
|
|
{
|
|
CoglTextureSourceType src_type;
|
|
union {
|
|
struct {
|
|
int width;
|
|
int height;
|
|
int depth; /* for 3d textures */
|
|
} sized;
|
|
struct {
|
|
CoglBitmap *bitmap;
|
|
int height; /* for 3d textures */
|
|
int depth; /* for 3d textures */
|
|
CoglBool can_convert_in_place;
|
|
} bitmap;
|
|
#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
|
|
struct {
|
|
EGLImageKHR image;
|
|
int width;
|
|
int height;
|
|
CoglPixelFormat format;
|
|
} egl_image;
|
|
#endif
|
|
struct {
|
|
int width;
|
|
int height;
|
|
unsigned int gl_handle;
|
|
CoglPixelFormat format;
|
|
} gl_foreign;
|
|
} src;
|
|
} CoglTextureLoader;
|
|
|
|
struct _CoglTexture
|
|
{
|
|
CoglObject _parent;
|
|
CoglContext *context;
|
|
CoglTextureLoader *loader;
|
|
GList *framebuffers;
|
|
int max_level;
|
|
int width;
|
|
int height;
|
|
CoglBool allocated;
|
|
|
|
/*
|
|
* Internal format
|
|
*/
|
|
CoglTextureComponents components;
|
|
unsigned int premultiplied:1;
|
|
|
|
const CoglTextureVtable *vtable;
|
|
};
|
|
|
|
typedef enum _CoglTextureChangeFlags
|
|
{
|
|
/* Whenever the internals of a texture are changed such that the
|
|
* underlying GL textures that represent the CoglTexture change then
|
|
* we notify cogl-material.c via
|
|
* _cogl_pipeline_texture_pre_change_notify
|
|
*/
|
|
COGL_TEXTURE_CHANGE_GL_TEXTURES
|
|
|
|
} CoglTextureChangeFlags;
|
|
|
|
typedef struct _CoglTexturePixel CoglTexturePixel;
|
|
|
|
/* This is used by the texture backends to store the first pixel of
|
|
each GL texture. This is only used when glGenerateMipmap is not
|
|
available so that we can temporarily set GL_GENERATE_MIPMAP and
|
|
reupload a pixel */
|
|
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;
|
|
uint8_t data[4];
|
|
};
|
|
|
|
void
|
|
_cogl_texture_init (CoglTexture *texture,
|
|
CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat src_format,
|
|
CoglTextureLoader *loader,
|
|
const CoglTextureVtable *vtable);
|
|
|
|
void
|
|
_cogl_texture_free (CoglTexture *texture);
|
|
|
|
/* This is used to register a type to the list of handle types that
|
|
will be considered a texture in cogl_is_texture() */
|
|
void
|
|
_cogl_texture_register_texture_type (const CoglObjectClass *klass);
|
|
|
|
#define COGL_TEXTURE_DEFINE(TypeName, type_name) \
|
|
COGL_OBJECT_DEFINE_WITH_CODE \
|
|
(TypeName, type_name, \
|
|
_cogl_texture_register_texture_type (&_cogl_##type_name##_class))
|
|
|
|
#define COGL_TEXTURE_INTERNAL_DEFINE(TypeName, type_name) \
|
|
COGL_OBJECT_INTERNAL_DEFINE_WITH_CODE \
|
|
(TypeName, type_name, \
|
|
_cogl_texture_register_texture_type (&_cogl_##type_name##_class))
|
|
|
|
CoglBool
|
|
_cogl_texture_can_hardware_repeat (CoglTexture *texture);
|
|
|
|
void
|
|
_cogl_texture_transform_coords_to_gl (CoglTexture *texture,
|
|
float *s,
|
|
float *t);
|
|
CoglTransformResult
|
|
_cogl_texture_transform_quad_coords_to_gl (CoglTexture *texture,
|
|
float *coords);
|
|
|
|
void
|
|
_cogl_texture_pre_paint (CoglTexture *texture, CoglTexturePrePaintFlags flags);
|
|
|
|
void
|
|
_cogl_texture_ensure_non_quad_rendering (CoglTexture *texture);
|
|
|
|
/*
|
|
* This determines a CoglPixelFormat according to texture::components
|
|
* and texture::premultiplied (i.e. the user required components and
|
|
* whether the texture should be considered premultiplied)
|
|
*
|
|
* A reference/source format can be given (or COGL_PIXEL_FORMAT_ANY)
|
|
* and wherever possible this function tries to simply return the
|
|
* given source format if its compatible with the required components.
|
|
*
|
|
* Texture backends can call this when allocating a texture to know
|
|
* how to convert a source image in preparation for uploading.
|
|
*/
|
|
CoglPixelFormat
|
|
_cogl_texture_determine_internal_format (CoglTexture *texture,
|
|
CoglPixelFormat src_format);
|
|
|
|
/* This is called by texture backends when they have successfully
|
|
* allocated a texture.
|
|
*
|
|
* Most texture backends currently track the internal layout of
|
|
* textures using a CoglPixelFormat which will be finalized when a
|
|
* texture is allocated. At this point we need to update
|
|
* texture::components and texture::premultiplied according to the
|
|
* determined layout.
|
|
*
|
|
* XXX: Going forward we should probably aim to stop using
|
|
* CoglPixelFormat at all for tracking the internal layout of
|
|
* textures.
|
|
*/
|
|
void
|
|
_cogl_texture_set_internal_format (CoglTexture *texture,
|
|
CoglPixelFormat internal_format);
|
|
|
|
CoglBool
|
|
_cogl_texture_is_foreign (CoglTexture *texture);
|
|
|
|
void
|
|
_cogl_texture_associate_framebuffer (CoglTexture *texture,
|
|
CoglFramebuffer *framebuffer);
|
|
|
|
const GList *
|
|
_cogl_texture_get_associated_framebuffers (CoglTexture *texture);
|
|
|
|
void
|
|
_cogl_texture_flush_journal_rendering (CoglTexture *texture);
|
|
|
|
void
|
|
_cogl_texture_spans_foreach_in_region (CoglSpan *x_spans,
|
|
int n_x_spans,
|
|
CoglSpan *y_spans,
|
|
int n_y_spans,
|
|
CoglTexture **textures,
|
|
float *virtual_coords,
|
|
float x_normalize_factor,
|
|
float y_normalize_factor,
|
|
CoglPipelineWrapMode wrap_x,
|
|
CoglPipelineWrapMode wrap_y,
|
|
CoglMetaTextureCallback callback,
|
|
void *user_data);
|
|
|
|
/*
|
|
* _cogl_texture_get_type:
|
|
* @texture: a #CoglTexture pointer
|
|
*
|
|
* Retrieves the texture type of the underlying hardware texture that
|
|
* this #CoglTexture will use.
|
|
*
|
|
* Return value: The type of the hardware texture.
|
|
*/
|
|
CoglTextureType
|
|
_cogl_texture_get_type (CoglTexture *texture);
|
|
|
|
CoglBool
|
|
_cogl_texture_set_region (CoglTexture *texture,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
const uint8_t *data,
|
|
int dst_x,
|
|
int dst_y,
|
|
int level,
|
|
CoglError **error);
|
|
|
|
CoglBool
|
|
_cogl_texture_set_region_from_bitmap (CoglTexture *texture,
|
|
int src_x,
|
|
int src_y,
|
|
int width,
|
|
int height,
|
|
CoglBitmap *bmp,
|
|
int dst_x,
|
|
int dst_y,
|
|
int level,
|
|
CoglError **error);
|
|
|
|
CoglBool
|
|
_cogl_texture_needs_premult_conversion (CoglPixelFormat src_format,
|
|
CoglPixelFormat dst_format);
|
|
|
|
int
|
|
_cogl_texture_get_n_levels (CoglTexture *texture);
|
|
|
|
void
|
|
_cogl_texture_get_level_size (CoglTexture *texture,
|
|
int level,
|
|
int *width,
|
|
int *height,
|
|
int *depth);
|
|
|
|
void
|
|
_cogl_texture_set_allocated (CoglTexture *texture,
|
|
CoglPixelFormat internal_format,
|
|
int width,
|
|
int height);
|
|
|
|
CoglPixelFormat
|
|
_cogl_texture_get_format (CoglTexture *texture);
|
|
|
|
CoglTextureLoader *
|
|
_cogl_texture_create_loader (void);
|
|
|
|
void
|
|
_cogl_texture_copy_internal_format (CoglTexture *src,
|
|
CoglTexture *dest);
|
|
|
|
#endif /* __COGL_TEXTURE_PRIVATE_H */
|