mirror of
https://github.com/brl/mutter.git
synced 2024-11-22 08:00:42 -05:00
1b2dd815b4
This adds much more comprehensive support for gobject-introspection based bindings by registering all objects as fundamental types that inherit from CoglObject, and all structs as boxed types. Co-Author: Robert Bragg <robert@linux.intel.com> Reviewed-by: Neil Roberts <neil@linux.intel.com>
782 lines
26 KiB
C
782 lines
26 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2010 Intel Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Neil Roberts <neil@linux.intel.com>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "cogl-private.h"
|
|
#include "cogl-util.h"
|
|
#include "cogl-texture-private.h"
|
|
#include "cogl-texture-rectangle-private.h"
|
|
#include "cogl-texture-driver.h"
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-journal-private.h"
|
|
#include "cogl-pipeline-opengl-private.h"
|
|
#include "cogl-error-private.h"
|
|
#include "cogl-util-gl-private.h"
|
|
#include "cogl-gtype-private.h"
|
|
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
/* These aren't defined under GLES */
|
|
#ifndef GL_TEXTURE_RECTANGLE_ARB
|
|
#define GL_TEXTURE_RECTANGLE_ARB 0x84F5
|
|
#endif
|
|
#ifndef GL_CLAMP
|
|
#define GL_CLAMP 0x2900
|
|
#endif
|
|
#ifndef GL_CLAMP_TO_BORDER
|
|
#define GL_CLAMP_TO_BORDER 0x812D
|
|
#endif
|
|
|
|
static void _cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect);
|
|
|
|
COGL_TEXTURE_DEFINE (TextureRectangle, texture_rectangle);
|
|
COGL_GTYPE_DEFINE_CLASS (TextureRectangle, texture_rectangle,
|
|
COGL_GTYPE_IMPLEMENT_INTERFACE (texture));
|
|
|
|
static const CoglTextureVtable cogl_texture_rectangle_vtable;
|
|
|
|
static CoglBool
|
|
can_use_wrap_mode (GLenum wrap_mode)
|
|
{
|
|
return (wrap_mode == GL_CLAMP ||
|
|
wrap_mode == GL_CLAMP_TO_EDGE ||
|
|
wrap_mode == GL_CLAMP_TO_BORDER);
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_gl_flush_legacy_texobj_wrap_modes (CoglTexture *tex,
|
|
GLenum wrap_mode_s,
|
|
GLenum wrap_mode_t,
|
|
GLenum wrap_mode_p)
|
|
{
|
|
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
|
|
CoglContext *ctx = tex->context;
|
|
|
|
/* Only set the wrap mode if it's different from the current value
|
|
to avoid too many GL calls. Texture rectangle doesn't make use of
|
|
the r coordinate so we can ignore its wrap mode */
|
|
if (tex_rect->gl_legacy_texobj_wrap_mode_s != wrap_mode_s ||
|
|
tex_rect->gl_legacy_texobj_wrap_mode_t != wrap_mode_t)
|
|
{
|
|
g_assert (can_use_wrap_mode (wrap_mode_s));
|
|
g_assert (can_use_wrap_mode (wrap_mode_t));
|
|
|
|
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
|
|
tex_rect->gl_texture,
|
|
tex_rect->is_foreign);
|
|
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
|
|
GL_TEXTURE_WRAP_S, wrap_mode_s) );
|
|
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB,
|
|
GL_TEXTURE_WRAP_T, wrap_mode_t) );
|
|
|
|
tex_rect->gl_legacy_texobj_wrap_mode_s = wrap_mode_s;
|
|
tex_rect->gl_legacy_texobj_wrap_mode_t = wrap_mode_t;
|
|
}
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_free (CoglTextureRectangle *tex_rect)
|
|
{
|
|
if (!tex_rect->is_foreign && tex_rect->gl_texture)
|
|
_cogl_delete_gl_texture (tex_rect->gl_texture);
|
|
|
|
/* Chain up */
|
|
_cogl_texture_free (COGL_TEXTURE (tex_rect));
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_can_create (CoglContext *ctx,
|
|
unsigned int width,
|
|
unsigned int height,
|
|
CoglPixelFormat internal_format,
|
|
CoglError **error)
|
|
{
|
|
GLenum gl_intformat;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
|
|
if (!cogl_has_feature (ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_TEXTURE_ERROR,
|
|
COGL_TEXTURE_ERROR_TYPE,
|
|
"The CoglTextureRectangle feature isn't available");
|
|
return FALSE;
|
|
}
|
|
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
internal_format,
|
|
&gl_intformat,
|
|
&gl_format,
|
|
&gl_type);
|
|
|
|
/* Check that the driver can create a texture with that size */
|
|
if (!ctx->texture_driver->size_supported (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB,
|
|
gl_intformat,
|
|
gl_format,
|
|
gl_type,
|
|
width,
|
|
height))
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_TEXTURE_ERROR,
|
|
COGL_TEXTURE_ERROR_SIZE,
|
|
"The requested texture size + format is unsupported");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_set_auto_mipmap (CoglTexture *tex,
|
|
CoglBool value)
|
|
{
|
|
/* Rectangle textures currently never support mipmapping so there's
|
|
no point in doing anything here */
|
|
}
|
|
|
|
static CoglTextureRectangle *
|
|
_cogl_texture_rectangle_create_base (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat internal_format,
|
|
CoglTextureLoader *loader)
|
|
{
|
|
CoglTextureRectangle *tex_rect = g_new (CoglTextureRectangle, 1);
|
|
CoglTexture *tex = COGL_TEXTURE (tex_rect);
|
|
|
|
_cogl_texture_init (tex, ctx, width, height,
|
|
internal_format, loader,
|
|
&cogl_texture_rectangle_vtable);
|
|
|
|
tex_rect->gl_texture = 0;
|
|
tex_rect->is_foreign = FALSE;
|
|
|
|
/* We default to GL_LINEAR for both filters */
|
|
tex_rect->gl_legacy_texobj_min_filter = GL_LINEAR;
|
|
tex_rect->gl_legacy_texobj_mag_filter = GL_LINEAR;
|
|
|
|
/* Wrap mode not yet set */
|
|
tex_rect->gl_legacy_texobj_wrap_mode_s = GL_FALSE;
|
|
tex_rect->gl_legacy_texobj_wrap_mode_t = GL_FALSE;
|
|
|
|
return _cogl_texture_rectangle_object_new (tex_rect);
|
|
}
|
|
|
|
CoglTextureRectangle *
|
|
cogl_texture_rectangle_new_with_size (CoglContext *ctx,
|
|
int width,
|
|
int height)
|
|
{
|
|
CoglTextureLoader *loader = _cogl_texture_create_loader ();
|
|
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_SIZED;
|
|
loader->src.sized.width = width;
|
|
loader->src.sized.height = height;
|
|
|
|
return _cogl_texture_rectangle_create_base (ctx, width, height,
|
|
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
|
|
loader);
|
|
}
|
|
|
|
static CoglBool
|
|
allocate_with_size (CoglTextureRectangle *tex_rect,
|
|
CoglTextureLoader *loader,
|
|
CoglError **error)
|
|
{
|
|
CoglTexture *tex = COGL_TEXTURE (tex_rect);
|
|
CoglContext *ctx = tex->context;
|
|
CoglPixelFormat internal_format;
|
|
int width = loader->src.sized.width;
|
|
int height = loader->src.sized.height;
|
|
GLenum gl_intformat;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
GLenum gl_error;
|
|
GLenum gl_texture;
|
|
|
|
internal_format =
|
|
_cogl_texture_determine_internal_format (tex, COGL_PIXEL_FORMAT_ANY);
|
|
|
|
if (!_cogl_texture_rectangle_can_create (ctx,
|
|
width,
|
|
height,
|
|
internal_format,
|
|
error))
|
|
return FALSE;
|
|
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
internal_format,
|
|
&gl_intformat,
|
|
&gl_format,
|
|
&gl_type);
|
|
|
|
gl_texture =
|
|
ctx->texture_driver->gen (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB,
|
|
internal_format);
|
|
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
|
|
gl_texture,
|
|
tex_rect->is_foreign);
|
|
|
|
/* Clear any GL errors */
|
|
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
|
|
;
|
|
|
|
ctx->glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, gl_intformat,
|
|
width, height, 0, gl_format, gl_type, NULL);
|
|
|
|
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
|
|
{
|
|
GE( ctx, glDeleteTextures (1, &gl_texture) );
|
|
return FALSE;
|
|
}
|
|
|
|
tex_rect->internal_format = internal_format;
|
|
|
|
tex_rect->gl_texture = gl_texture;
|
|
tex_rect->gl_format = gl_intformat;
|
|
|
|
_cogl_texture_set_allocated (COGL_TEXTURE (tex_rect),
|
|
internal_format, width, height);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static CoglBool
|
|
allocate_from_bitmap (CoglTextureRectangle *tex_rect,
|
|
CoglTextureLoader *loader,
|
|
CoglError **error)
|
|
{
|
|
CoglTexture *tex = COGL_TEXTURE (tex_rect);
|
|
CoglContext *ctx = tex->context;
|
|
CoglPixelFormat internal_format;
|
|
CoglBitmap *bmp = loader->src.bitmap.bitmap;
|
|
int width = cogl_bitmap_get_width (bmp);
|
|
int height = cogl_bitmap_get_height (bmp);
|
|
CoglBool can_convert_in_place = loader->src.bitmap.can_convert_in_place;
|
|
CoglBitmap *upload_bmp;
|
|
GLenum gl_intformat;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
|
|
internal_format =
|
|
_cogl_texture_determine_internal_format (tex, cogl_bitmap_get_format (bmp));
|
|
|
|
if (!_cogl_texture_rectangle_can_create (ctx,
|
|
width,
|
|
height,
|
|
internal_format,
|
|
error))
|
|
return FALSE;
|
|
|
|
upload_bmp = _cogl_bitmap_convert_for_upload (bmp,
|
|
internal_format,
|
|
can_convert_in_place,
|
|
error);
|
|
if (upload_bmp == NULL)
|
|
return FALSE;
|
|
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
cogl_bitmap_get_format (upload_bmp),
|
|
NULL, /* internal format */
|
|
&gl_format,
|
|
&gl_type);
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
internal_format,
|
|
&gl_intformat,
|
|
NULL,
|
|
NULL);
|
|
|
|
tex_rect->gl_texture =
|
|
ctx->texture_driver->gen (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB,
|
|
internal_format);
|
|
if (!ctx->texture_driver->upload_to_gl (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB,
|
|
tex_rect->gl_texture,
|
|
FALSE,
|
|
upload_bmp,
|
|
gl_intformat,
|
|
gl_format,
|
|
gl_type,
|
|
error))
|
|
{
|
|
cogl_object_unref (upload_bmp);
|
|
return FALSE;
|
|
}
|
|
|
|
tex_rect->gl_format = gl_intformat;
|
|
tex_rect->internal_format = internal_format;
|
|
|
|
cogl_object_unref (upload_bmp);
|
|
|
|
_cogl_texture_set_allocated (COGL_TEXTURE (tex_rect),
|
|
internal_format, width, height);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static CoglBool
|
|
allocate_from_gl_foreign (CoglTextureRectangle *tex_rect,
|
|
CoglTextureLoader *loader,
|
|
CoglError **error)
|
|
{
|
|
CoglTexture *tex = COGL_TEXTURE (tex_rect);
|
|
CoglContext *ctx = tex->context;
|
|
CoglPixelFormat format = loader->src.gl_foreign.format;
|
|
GLenum gl_error = 0;
|
|
GLint gl_compressed = GL_FALSE;
|
|
GLenum gl_int_format = 0;
|
|
|
|
if (!ctx->texture_driver->allows_foreign_gl_target (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB))
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Foreign GL_TEXTURE_RECTANGLE textures are not "
|
|
"supported by your system");
|
|
return FALSE;
|
|
}
|
|
|
|
/* Make sure binding succeeds */
|
|
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
|
|
;
|
|
|
|
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
|
|
loader->src.gl_foreign.gl_handle, TRUE);
|
|
if (ctx->glGetError () != GL_NO_ERROR)
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Failed to bind foreign GL_TEXTURE_RECTANGLE texture");
|
|
return FALSE;
|
|
}
|
|
|
|
/* Obtain texture parameters */
|
|
|
|
#ifdef HAVE_COGL_GL
|
|
if (_cogl_has_private_feature
|
|
(ctx, COGL_PRIVATE_FEATURE_QUERY_TEXTURE_PARAMETERS))
|
|
{
|
|
GLint val;
|
|
|
|
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 0,
|
|
GL_TEXTURE_COMPRESSED,
|
|
&gl_compressed) );
|
|
|
|
GE( ctx, glGetTexLevelParameteriv (GL_TEXTURE_RECTANGLE_ARB, 0,
|
|
GL_TEXTURE_INTERNAL_FORMAT,
|
|
&val) );
|
|
|
|
gl_int_format = val;
|
|
|
|
/* If we can query GL for the actual pixel format then we'll ignore
|
|
the passed in format and use that. */
|
|
if (!ctx->driver_vtable->pixel_format_from_gl_internal (ctx,
|
|
gl_int_format,
|
|
&format))
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Unsupported internal format for foreign texture");
|
|
return FALSE;
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
/* Otherwise we'll assume we can derive the GL format from the
|
|
passed in format */
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
format,
|
|
&gl_int_format,
|
|
NULL,
|
|
NULL);
|
|
}
|
|
|
|
/* Compressed texture images not supported */
|
|
if (gl_compressed == GL_TRUE)
|
|
{
|
|
_cogl_set_error (error,
|
|
COGL_SYSTEM_ERROR,
|
|
COGL_SYSTEM_ERROR_UNSUPPORTED,
|
|
"Compressed foreign textures aren't currently supported");
|
|
return FALSE;
|
|
}
|
|
|
|
/* Setup bitmap info */
|
|
tex_rect->is_foreign = TRUE;
|
|
|
|
tex_rect->gl_texture = loader->src.gl_foreign.gl_handle;
|
|
tex_rect->gl_format = gl_int_format;
|
|
|
|
/* Unknown filter */
|
|
tex_rect->gl_legacy_texobj_min_filter = GL_FALSE;
|
|
tex_rect->gl_legacy_texobj_mag_filter = GL_FALSE;
|
|
|
|
tex_rect->internal_format = format;
|
|
|
|
_cogl_texture_set_allocated (COGL_TEXTURE (tex_rect),
|
|
format,
|
|
loader->src.gl_foreign.width,
|
|
loader->src.gl_foreign.height);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_allocate (CoglTexture *tex,
|
|
CoglError **error)
|
|
{
|
|
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
|
|
CoglTextureLoader *loader = tex->loader;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (loader, FALSE);
|
|
|
|
switch (loader->src_type)
|
|
{
|
|
case COGL_TEXTURE_SOURCE_TYPE_SIZED:
|
|
return allocate_with_size (tex_rect, loader, error);
|
|
case COGL_TEXTURE_SOURCE_TYPE_BITMAP:
|
|
return allocate_from_bitmap (tex_rect, loader, error);
|
|
case COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN:
|
|
return allocate_from_gl_foreign (tex_rect, loader, error);
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_return_val_if_reached (FALSE);
|
|
}
|
|
|
|
CoglTextureRectangle *
|
|
cogl_texture_rectangle_new_from_bitmap (CoglBitmap *bmp)
|
|
{
|
|
CoglTextureLoader *loader;
|
|
|
|
_COGL_RETURN_VAL_IF_FAIL (cogl_is_bitmap (bmp), NULL);
|
|
|
|
loader = _cogl_texture_create_loader ();
|
|
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_BITMAP;
|
|
loader->src.bitmap.bitmap = cogl_object_ref (bmp);
|
|
loader->src.bitmap.can_convert_in_place = FALSE; /* TODO add api for this */
|
|
|
|
return _cogl_texture_rectangle_create_base (_cogl_bitmap_get_context (bmp),
|
|
cogl_bitmap_get_width (bmp),
|
|
cogl_bitmap_get_height (bmp),
|
|
cogl_bitmap_get_format (bmp),
|
|
loader);
|
|
}
|
|
|
|
CoglTextureRectangle *
|
|
cogl_texture_rectangle_new_from_foreign (CoglContext *ctx,
|
|
unsigned int gl_handle,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format)
|
|
{
|
|
CoglTextureLoader *loader;
|
|
|
|
/* NOTE: width, height and internal format are not queriable in
|
|
* GLES, hence such a function prototype. Also in the case of full
|
|
* opengl the user may be creating a Cogl texture for a
|
|
* texture_from_pixmap object where glTexImage2D may not have been
|
|
* called and the texture_from_pixmap spec doesn't clarify that it
|
|
* is reliable to query back the size from OpenGL.
|
|
*/
|
|
|
|
/* Assert that it is a valid GL texture object */
|
|
_COGL_RETURN_VAL_IF_FAIL (ctx->glIsTexture (gl_handle), NULL);
|
|
|
|
/* Validate width and height */
|
|
_COGL_RETURN_VAL_IF_FAIL (width > 0 && height > 0, NULL);
|
|
|
|
loader = _cogl_texture_create_loader ();
|
|
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_GL_FOREIGN;
|
|
loader->src.gl_foreign.gl_handle = gl_handle;
|
|
loader->src.gl_foreign.width = width;
|
|
loader->src.gl_foreign.height = height;
|
|
loader->src.gl_foreign.format = format;
|
|
|
|
return _cogl_texture_rectangle_create_base (ctx, width, height,
|
|
format, loader);
|
|
}
|
|
|
|
static int
|
|
_cogl_texture_rectangle_get_max_waste (CoglTexture *tex)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_is_sliced (CoglTexture *tex)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_can_hardware_repeat (CoglTexture *tex)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_transform_coords_to_gl (CoglTexture *tex,
|
|
float *s,
|
|
float *t)
|
|
{
|
|
*s *= tex->width;
|
|
*t *= tex->height;
|
|
}
|
|
|
|
static CoglTransformResult
|
|
_cogl_texture_rectangle_transform_quad_coords_to_gl (CoglTexture *tex,
|
|
float *coords)
|
|
{
|
|
CoglBool need_repeat = FALSE;
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
if (coords[i] < 0.0f || coords[i] > 1.0f)
|
|
need_repeat = TRUE;
|
|
coords[i] *= (i & 1) ? tex->height : tex->width;
|
|
}
|
|
|
|
return (need_repeat ? COGL_TRANSFORM_SOFTWARE_REPEAT
|
|
: COGL_TRANSFORM_NO_REPEAT);
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_get_gl_texture (CoglTexture *tex,
|
|
GLuint *out_gl_handle,
|
|
GLenum *out_gl_target)
|
|
{
|
|
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
|
|
|
|
if (out_gl_handle)
|
|
*out_gl_handle = tex_rect->gl_texture;
|
|
|
|
if (out_gl_target)
|
|
*out_gl_target = GL_TEXTURE_RECTANGLE_ARB;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_gl_flush_legacy_texobj_filters (CoglTexture *tex,
|
|
GLenum min_filter,
|
|
GLenum mag_filter)
|
|
{
|
|
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
|
|
CoglContext *ctx = tex->context;
|
|
|
|
if (min_filter == tex_rect->gl_legacy_texobj_min_filter
|
|
&& mag_filter == tex_rect->gl_legacy_texobj_mag_filter)
|
|
return;
|
|
|
|
/* Rectangle textures don't support mipmapping */
|
|
g_assert (min_filter == GL_LINEAR || min_filter == GL_NEAREST);
|
|
|
|
/* Store new values */
|
|
tex_rect->gl_legacy_texobj_min_filter = min_filter;
|
|
tex_rect->gl_legacy_texobj_mag_filter = mag_filter;
|
|
|
|
/* Apply new filters to the texture */
|
|
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
|
|
tex_rect->gl_texture,
|
|
tex_rect->is_foreign);
|
|
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER,
|
|
mag_filter) );
|
|
GE( ctx, glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER,
|
|
min_filter) );
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_pre_paint (CoglTexture *tex,
|
|
CoglTexturePrePaintFlags flags)
|
|
{
|
|
/* Rectangle textures don't support mipmaps */
|
|
g_assert ((flags & COGL_TEXTURE_NEEDS_MIPMAP) == 0);
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_rectangle_ensure_non_quad_rendering (CoglTexture *tex)
|
|
{
|
|
/* Nothing needs to be done */
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_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 *bmp,
|
|
CoglError **error)
|
|
{
|
|
CoglBitmap *upload_bmp;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
CoglContext *ctx = tex->context;
|
|
CoglBool status;
|
|
|
|
upload_bmp =
|
|
_cogl_bitmap_convert_for_upload (bmp,
|
|
_cogl_texture_get_format (tex),
|
|
FALSE, /* can't convert in place */
|
|
error);
|
|
if (upload_bmp == NULL)
|
|
return FALSE;
|
|
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
cogl_bitmap_get_format (upload_bmp),
|
|
NULL, /* internal format */
|
|
&gl_format,
|
|
&gl_type);
|
|
|
|
/* Send data to GL */
|
|
status =
|
|
ctx->texture_driver->upload_subregion_to_gl (ctx,
|
|
tex,
|
|
FALSE,
|
|
src_x, src_y,
|
|
dst_x, dst_y,
|
|
dst_width, dst_height,
|
|
level,
|
|
upload_bmp,
|
|
gl_format,
|
|
gl_type,
|
|
error);
|
|
|
|
cogl_object_unref (upload_bmp);
|
|
|
|
return status;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_get_data (CoglTexture *tex,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
uint8_t *data)
|
|
{
|
|
CoglTextureRectangle *tex_rect = COGL_TEXTURE_RECTANGLE (tex);
|
|
CoglContext *ctx = tex->context;
|
|
int bpp;
|
|
GLenum gl_format;
|
|
GLenum gl_type;
|
|
|
|
bpp = _cogl_pixel_format_get_bytes_per_pixel (format);
|
|
|
|
ctx->driver_vtable->pixel_format_to_gl (ctx,
|
|
format,
|
|
NULL, /* internal format */
|
|
&gl_format,
|
|
&gl_type);
|
|
|
|
ctx->texture_driver->prep_gl_for_pixels_download (ctx,
|
|
rowstride,
|
|
tex->width,
|
|
bpp);
|
|
|
|
_cogl_bind_gl_texture_transient (GL_TEXTURE_RECTANGLE_ARB,
|
|
tex_rect->gl_texture,
|
|
tex_rect->is_foreign);
|
|
return ctx->texture_driver->gl_get_tex_image (ctx,
|
|
GL_TEXTURE_RECTANGLE_ARB,
|
|
gl_format,
|
|
gl_type,
|
|
data);
|
|
}
|
|
|
|
static CoglPixelFormat
|
|
_cogl_texture_rectangle_get_format (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_RECTANGLE (tex)->internal_format;
|
|
}
|
|
|
|
static GLenum
|
|
_cogl_texture_rectangle_get_gl_format (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_RECTANGLE (tex)->gl_format;
|
|
}
|
|
|
|
static CoglBool
|
|
_cogl_texture_rectangle_is_foreign (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_RECTANGLE (tex)->is_foreign;
|
|
}
|
|
|
|
static CoglTextureType
|
|
_cogl_texture_rectangle_get_type (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_TYPE_RECTANGLE;
|
|
}
|
|
|
|
static const CoglTextureVtable
|
|
cogl_texture_rectangle_vtable =
|
|
{
|
|
TRUE, /* primitive */
|
|
_cogl_texture_rectangle_allocate,
|
|
_cogl_texture_rectangle_set_region,
|
|
_cogl_texture_rectangle_get_data,
|
|
NULL, /* foreach_sub_texture_in_region */
|
|
_cogl_texture_rectangle_get_max_waste,
|
|
_cogl_texture_rectangle_is_sliced,
|
|
_cogl_texture_rectangle_can_hardware_repeat,
|
|
_cogl_texture_rectangle_transform_coords_to_gl,
|
|
_cogl_texture_rectangle_transform_quad_coords_to_gl,
|
|
_cogl_texture_rectangle_get_gl_texture,
|
|
_cogl_texture_rectangle_gl_flush_legacy_texobj_filters,
|
|
_cogl_texture_rectangle_pre_paint,
|
|
_cogl_texture_rectangle_ensure_non_quad_rendering,
|
|
_cogl_texture_rectangle_gl_flush_legacy_texobj_wrap_modes,
|
|
_cogl_texture_rectangle_get_format,
|
|
_cogl_texture_rectangle_get_gl_format,
|
|
_cogl_texture_rectangle_get_type,
|
|
_cogl_texture_rectangle_is_foreign,
|
|
_cogl_texture_rectangle_set_auto_mipmap
|
|
};
|