mirror of
https://github.com/brl/mutter.git
synced 2024-12-26 21:02:14 +00:00
d4459e2d42
This splits out the core CoglPipelineLayer support code from cogl-pipeline.c into cogl-pipeline-layer.c; it splits out the debugging code for dumping a pipeline to a .dot file into cogl-pipeline-debug.c and it splits the CoglPipelineNode support which is shared between CoglPipeline and CoglPipelineLayer into cogl-node.c. Note: cogl-pipeline-layer.c only contains the layer code directly relating to CoglPipelineLayer objects; it does not contain any _cogl_pipeline API relating to how CoglPipeline tracks and manipulates layers.
511 lines
17 KiB
C
511 lines
17 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009,2010 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/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_TEXTURE_H__
|
|
#define __COGL_TEXTURE_H__
|
|
|
|
#include <cogl/cogl-types.h>
|
|
#include <cogl/cogl-defines.h>
|
|
#if defined (COGL_ENABLE_EXPERIMENTAL_API)
|
|
#include <cogl/cogl-pixel-buffer.h>
|
|
#endif
|
|
#include <cogl/cogl-bitmap.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-texture
|
|
* @short_description: Fuctions for creating and manipulating textures
|
|
*
|
|
* Cogl allows creating and manipulating textures using a uniform
|
|
* API that tries to hide all the various complexities of creating,
|
|
* loading and manipulating textures.
|
|
*/
|
|
|
|
typedef struct _CoglTexture CoglTexture;
|
|
#define COGL_TEXTURE(X) ((CoglTexture *)X)
|
|
|
|
#define COGL_TEXTURE_MAX_WASTE 127
|
|
|
|
/**
|
|
* COGL_TEXTURE_ERROR:
|
|
*
|
|
* #GError domain for texture errors.
|
|
*
|
|
* Since: 2.0
|
|
* Stability: Unstable
|
|
*/
|
|
#define COGL_TEXTURE_ERROR (cogl_texture_error_quark ())
|
|
|
|
|
|
/**
|
|
* CoglTextureError:
|
|
* @COGL_TEXTURE_ERROR_SIZE: Unsupported size
|
|
*
|
|
* Error codes that can be thrown when allocating textures.
|
|
*
|
|
* Since: 2.0
|
|
* Stability: Unstable
|
|
*/
|
|
typedef enum {
|
|
COGL_TEXTURE_ERROR_SIZE,
|
|
COGL_TEXTURE_ERROR_FORMAT,
|
|
COGL_TEXTURE_ERROR_BAD_PARAMETER
|
|
} CoglTextureError;
|
|
|
|
GQuark cogl_texture_error_quark (void);
|
|
|
|
/**
|
|
* cogl_texture_new_with_size:
|
|
* @width: width of texture in pixels.
|
|
* @height: height of texture in pixels.
|
|
* @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE
|
|
* @internal_format: the #CoglPixelFormat to use for the GPU storage of the
|
|
* texture.
|
|
*
|
|
* Creates a new #CoglTexture with the specified dimensions and pixel format.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_with_size (unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format);
|
|
|
|
/**
|
|
* cogl_texture_new_from_file:
|
|
* @filename: the file to load
|
|
* @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE
|
|
* @internal_format: the #CoglPixelFormat to use for the GPU storage of the
|
|
* texture. If %COGL_PIXEL_FORMAT_ANY is given then a premultiplied
|
|
* format similar to the format of the source data will be used. The
|
|
* default blending equations of Cogl expect premultiplied color data;
|
|
* the main use of passing a non-premultiplied format here is if you
|
|
* have non-premultiplied source data and are going to adjust the blend
|
|
* mode (see cogl_material_set_blend()) or use the data for something
|
|
* other than straight blending.
|
|
* @error: return location for a #GError or %NULL
|
|
*
|
|
* Creates a #CoglTexture from an image file.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_file (const char *filename,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format,
|
|
GError **error);
|
|
|
|
/**
|
|
* cogl_texture_new_from_data:
|
|
* @width: width of texture in pixels
|
|
* @height: height of texture in pixels
|
|
* @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE
|
|
* @format: the #CoglPixelFormat the buffer is stored in in RAM
|
|
* @internal_format: the #CoglPixelFormat that will be used for storing
|
|
* the buffer on the GPU. If COGL_PIXEL_FORMAT_ANY is given then a
|
|
* premultiplied format similar to the format of the source data will
|
|
* be used. The default blending equations of Cogl expect premultiplied
|
|
* color data; the main use of passing a non-premultiplied format here
|
|
* is if you have non-premultiplied source data and are going to adjust
|
|
* the blend mode (see cogl_material_set_blend()) or use the data for
|
|
* something other than straight blending.
|
|
* @rowstride: the memory offset in bytes between the starts of
|
|
* scanlines in @data
|
|
* @data: pointer the memory region where the source buffer resides
|
|
*
|
|
* Creates a new #CoglTexture based on data residing in memory.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_data (unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat format,
|
|
CoglPixelFormat internal_format,
|
|
unsigned int rowstride,
|
|
const guint8 *data);
|
|
|
|
/**
|
|
* cogl_texture_new_from_foreign:
|
|
* @gl_handle: opengl handle of foreign texture.
|
|
* @gl_target: opengl target type of foreign texture
|
|
* @width: width of foreign texture
|
|
* @height: height of foreign texture.
|
|
* @x_pot_waste: horizontal waste on the right hand edge of the texture.
|
|
* @y_pot_waste: vertical waste on the bottom edge of the texture.
|
|
* @format: format of the foreign texture.
|
|
*
|
|
* Creates a #CoglTexture based on an existing OpenGL texture; the
|
|
* width, height and format are passed along since it is not always
|
|
* possible to query these from OpenGL.
|
|
*
|
|
* The waste arguments allow you to create a Cogl texture that maps to
|
|
* a region smaller than the real OpenGL texture. For instance if your
|
|
* hardware only supports power-of-two textures you may load a
|
|
* non-power-of-two image into a larger power-of-two texture and use
|
|
* the waste arguments to tell Cogl which region should be mapped to
|
|
* the texture coordinate range [0:1].
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 0.8
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_foreign (GLuint gl_handle,
|
|
GLenum gl_target,
|
|
GLuint width,
|
|
GLuint height,
|
|
GLuint x_pot_waste,
|
|
GLuint y_pot_waste,
|
|
CoglPixelFormat format);
|
|
|
|
/**
|
|
* cogl_texture_new_from_bitmap:
|
|
* @bitmap: A #CoglBitmap pointer
|
|
* @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE
|
|
* @internal_format: the #CoglPixelFormat to use for the GPU storage of the
|
|
* texture
|
|
*
|
|
* Creates a #CoglTexture from a #CoglBitmap.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 1.0
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_bitmap (CoglBitmap *bitmap,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat internal_format);
|
|
|
|
/**
|
|
* cogl_is_texture:
|
|
* @object: A #CoglObject pointer
|
|
*
|
|
* Gets whether the given object references a texture object.
|
|
*
|
|
* Return value: %TRUE if the handle references a texture, and
|
|
* %FALSE otherwise
|
|
*/
|
|
gboolean
|
|
cogl_is_texture (void *object);
|
|
|
|
/**
|
|
* cogl_texture_get_width:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries the width of a cogl texture.
|
|
*
|
|
* Return value: the width of the GPU side texture in pixels
|
|
*/
|
|
unsigned int
|
|
cogl_texture_get_width (CoglTexture *texture);
|
|
|
|
/**
|
|
* cogl_texture_get_height:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries the height of a cogl texture.
|
|
*
|
|
* Return value: the height of the GPU side texture in pixels
|
|
*/
|
|
unsigned int
|
|
cogl_texture_get_height (CoglTexture *texture);
|
|
|
|
/**
|
|
* cogl_texture_get_format:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries the #CoglPixelFormat of a cogl texture.
|
|
*
|
|
* Return value: the #CoglPixelFormat of the GPU side texture
|
|
*/
|
|
CoglPixelFormat
|
|
cogl_texture_get_format (CoglTexture *texture);
|
|
|
|
|
|
/**
|
|
* cogl_texture_get_rowstride:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries the rowstride of a cogl texture.
|
|
*
|
|
* Return value: the offset in bytes between each consequetive row of pixels
|
|
*/
|
|
unsigned int
|
|
cogl_texture_get_rowstride (CoglTexture *texture);
|
|
|
|
/**
|
|
* cogl_texture_get_max_waste:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries the maximum wasted (unused) pixels in one dimension of a GPU side
|
|
* texture.
|
|
*
|
|
* Return value: the maximum waste
|
|
*/
|
|
int
|
|
cogl_texture_get_max_waste (CoglTexture *texture);
|
|
|
|
/**
|
|
* cogl_texture_is_sliced:
|
|
* @texture a #CoglTexture pointer.
|
|
*
|
|
* Queries if a texture is sliced (stored as multiple GPU side tecture
|
|
* objects).
|
|
*
|
|
* Return value: %TRUE if the texture is sliced, %FALSE if the texture
|
|
* is stored as a single GPU texture
|
|
*/
|
|
gboolean
|
|
cogl_texture_is_sliced (CoglTexture *texture);
|
|
|
|
/**
|
|
* cogl_texture_get_gl_texture:
|
|
* @texture a #CoglTexture pointer.
|
|
* @out_gl_handle: (out) (allow-none): pointer to return location for the
|
|
* textures GL handle, or %NULL.
|
|
* @out_gl_target: (out) (allow-none): pointer to return location for the
|
|
* GL target type, or %NULL.
|
|
*
|
|
* Queries the GL handles for a GPU side texture through its #CoglTexture.
|
|
*
|
|
* If the texture is spliced the data for the first sub texture will be
|
|
* queried.
|
|
*
|
|
* Return value: %TRUE if the handle was successfully retrieved, %FALSE
|
|
* if the handle was invalid
|
|
*/
|
|
gboolean
|
|
cogl_texture_get_gl_texture (CoglTexture *texture,
|
|
GLuint *out_gl_handle,
|
|
GLenum *out_gl_target);
|
|
|
|
/**
|
|
* cogl_texture_get_data:
|
|
* @texture a #CoglTexture pointer.
|
|
* @format: the #CoglPixelFormat to store the texture as.
|
|
* @rowstride: the rowstride of @data or retrieved from texture if none is
|
|
* specified.
|
|
* @data: memory location to write contents of buffer, or %NULL if we're
|
|
* only querying the data size through the return value.
|
|
*
|
|
* Copies the pixel data from a cogl texture to system memory.
|
|
*
|
|
* Return value: the size of the texture data in bytes, or 0 if the texture
|
|
* is not valid
|
|
*/
|
|
int
|
|
cogl_texture_get_data (CoglTexture *texture,
|
|
CoglPixelFormat format,
|
|
unsigned int rowstride,
|
|
guint8 *data);
|
|
|
|
/**
|
|
* cogl_texture_set_region:
|
|
* @texture a #CoglTexture.
|
|
* @src_x: upper left coordinate to use from source data.
|
|
* @src_y: upper left coordinate to use from source data.
|
|
* @dst_x: upper left destination horizontal coordinate.
|
|
* @dst_y: upper left destination vertical coordinate.
|
|
* @dst_width: width of destination region to write.
|
|
* @dst_height: height of destination region to write.
|
|
* @width: width of source data buffer.
|
|
* @height: height of source data buffer.
|
|
* @format: the #CoglPixelFormat used in the source buffer.
|
|
* @rowstride: rowstride of source buffer (computed from width if none
|
|
* specified)
|
|
* @data: the actual pixel data.
|
|
*
|
|
* Sets the pixels in a rectangular subregion of @handle from an in-memory
|
|
* buffer containing pixel data.
|
|
*
|
|
* Return value: %TRUE if the subregion upload was successful, and
|
|
* %FALSE otherwise
|
|
*/
|
|
gboolean
|
|
cogl_texture_set_region (CoglTexture *texture,
|
|
int src_x,
|
|
int src_y,
|
|
int dst_x,
|
|
int dst_y,
|
|
unsigned int dst_width,
|
|
unsigned int dst_height,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format,
|
|
unsigned int rowstride,
|
|
const guint8 *data);
|
|
|
|
#if defined (COGL_ENABLE_EXPERIMENTAL_API)
|
|
|
|
#define cogl_texture_set_region_from_bitmap \
|
|
cogl_texture_set_region_from_bitmap_EXP
|
|
/**
|
|
* cogl_texture_set_region_from_bitmap:
|
|
* @texture a #CoglTexture pointer
|
|
* @src_x: upper left coordinate to use from the source bitmap.
|
|
* @src_y: upper left coordinate to use from the source bitmap
|
|
* @dst_x: upper left destination horizontal coordinate.
|
|
* @dst_y: upper left destination vertical coordinate.
|
|
* @dst_width: width of destination region to write.
|
|
* @dst_height: height of destination region to write.
|
|
* @bitmap: The source bitmap to read from
|
|
*
|
|
* Copies a specified source region from @bitmap to the position
|
|
* (@src_x, @src_y) of the given destination texture @handle.
|
|
*
|
|
* Return value: %TRUE if the subregion upload was successful, and
|
|
* %FALSE otherwise
|
|
*
|
|
* Since: 1.8
|
|
* Stability: unstable
|
|
*/
|
|
gboolean
|
|
cogl_texture_set_region_from_bitmap (CoglTexture *texture,
|
|
int src_x,
|
|
int src_y,
|
|
int dst_x,
|
|
int dst_y,
|
|
unsigned int dst_width,
|
|
unsigned int dst_height,
|
|
CoglBitmap *bitmap);
|
|
#endif
|
|
|
|
/**
|
|
* cogl_texture_new_from_sub_texture:
|
|
* @full_texture: a #CoglTexture pointer
|
|
* @sub_x: X coordinate of the top-left of the subregion
|
|
* @sub_y: Y coordinate of the top-left of the subregion
|
|
* @sub_width: Width in pixels of the subregion
|
|
* @sub_height: Height in pixels of the subregion
|
|
*
|
|
* Creates a new texture which represents a subregion of another
|
|
* texture. The GL resources will be shared so that no new texture
|
|
* data is actually allocated.
|
|
*
|
|
* Sub textures have undefined behaviour texture coordinates outside
|
|
* of the range [0,1] are used. They also do not work with
|
|
* CoglVertexBuffers.
|
|
*
|
|
* The sub texture will keep a reference to the full texture so you do
|
|
* not need to keep one separately if you only want to use the sub
|
|
* texture.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
* Since: 1.2
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_sub_texture (CoglTexture *full_texture,
|
|
int sub_x,
|
|
int sub_y,
|
|
int sub_width,
|
|
int sub_height);
|
|
|
|
#if defined (COGL_ENABLE_EXPERIMENTAL_API)
|
|
|
|
#define cogl_texture_new_from_buffer cogl_texture_new_from_buffer_EXP
|
|
/**
|
|
* cogl_texture_new_from_buffer:
|
|
* @buffer: A #CoglPixelBuffer pointer
|
|
* @width: width of texture in pixels or 0
|
|
* @height: height of texture in pixels or 0
|
|
* @flags: optional flags for the texture, or %COGL_TEXTURE_NONE
|
|
* @format: the #CoglPixelFormat the buffer is stored in in RAM
|
|
* @internal_format: the #CoglPixelFormat that will be used for storing
|
|
* the buffer on the GPU. If %COGL_PIXEL_FORMAT_ANY is given then a
|
|
* premultiplied format similar to the format of the source data will
|
|
* be used. The default blending equations of Cogl expect premultiplied
|
|
* color data; the main use of passing a non-premultiplied format here
|
|
* is if you have non-premultiplied source data and are going to adjust
|
|
* the blend mode (see cogl_material_set_blend()) or use the data for
|
|
* something other than straight blending
|
|
* @rowstride: the memory offset in bytes between the starts of
|
|
* scanlines in @data. If 0 is given the row stride will be deduced from
|
|
* @width and @format or the stride given by cogl_pixel_buffer_new_for_size()
|
|
* @offset: offset in bytes in @buffer from where the texture data starts
|
|
*
|
|
* Creates a new texture using the buffer specified by @handle. If the buffer
|
|
* has been created using cogl_pixel_buffer_new_for_size() it's possible to omit
|
|
* the height and width values already specified at creation time.
|
|
*
|
|
* Return value: A newly created #CoglTexture or %NULL on failure
|
|
*
|
|
* Since: 1.2
|
|
* Stability: Unstable
|
|
*/
|
|
CoglTexture *
|
|
cogl_texture_new_from_buffer (CoglPixelBuffer *buffer,
|
|
unsigned int width,
|
|
unsigned int height,
|
|
CoglTextureFlags flags,
|
|
CoglPixelFormat format,
|
|
CoglPixelFormat internal_format,
|
|
unsigned int rowstride,
|
|
unsigned int offset);
|
|
#endif
|
|
|
|
#ifndef COGL_DISABLE_DEPRECATED
|
|
|
|
/**
|
|
* cogl_texture_ref:
|
|
* @texture: a #CoglTexture.
|
|
*
|
|
* Increment the reference count for a cogl texture.
|
|
*
|
|
* Deprecated: 1.2: Use cogl_object_ref() instead
|
|
*
|
|
* Return value: the @texture pointer.
|
|
*/
|
|
void *
|
|
cogl_texture_ref (void *texture) G_GNUC_DEPRECATED;
|
|
|
|
/**
|
|
* cogl_texture_unref:
|
|
* @texture: a #CoglTexture.
|
|
*
|
|
* Decrement the reference count for a cogl texture.
|
|
*
|
|
* Deprecated: 1.2: Use cogl_object_unref() instead
|
|
*/
|
|
void
|
|
cogl_texture_unref (void *texture) G_GNUC_DEPRECATED;
|
|
|
|
#endif /* COGL_DISABLE_DEPRECATED */
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __COGL_TEXTURE_H__ */
|