mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 03:22:04 +00:00
37eda498f2
A texture with no pixels isn't a useful thing to have, and breaks assumptions elsewhere. For example, CoglFramebuffer assumes that after a texture has been allocated, it will have width and height both greater than 0. In particular, this works around a crash when gnome-shell tries to blur a background that hasn't yet had any space allocated for it - which it seems is really an actor layout bug, but more robustness seems good to have. Workaround for <https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2538>. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1172 Signed-off-by: Simon McVittie <smcv@debian.org>
513 lines
15 KiB
C
513 lines
15 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2009 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>
|
|
*/
|
|
|
|
#include "cogl-config.h"
|
|
|
|
#include "cogl-private.h"
|
|
#include "cogl-util.h"
|
|
#include "cogl-texture-private.h"
|
|
#include "cogl-texture-2d-private.h"
|
|
#include "cogl-texture-driver.h"
|
|
#include "cogl-context-private.h"
|
|
#include "cogl-object-private.h"
|
|
#include "cogl-journal-private.h"
|
|
#include "cogl-framebuffer-private.h"
|
|
#include "cogl-gtype-private.h"
|
|
#include "driver/gl/cogl-texture-2d-gl-private.h"
|
|
#ifdef COGL_HAS_EGL_SUPPORT
|
|
#include "winsys/cogl-winsys-egl-private.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
#ifdef COGL_HAS_WAYLAND_EGL_SERVER_SUPPORT
|
|
#include "cogl-wayland-server.h"
|
|
#endif
|
|
|
|
static void _cogl_texture_2d_free (CoglTexture2D *tex_2d);
|
|
|
|
COGL_TEXTURE_DEFINE (Texture2D, texture_2d);
|
|
COGL_GTYPE_DEFINE_CLASS (Texture2D, texture_2d,
|
|
COGL_GTYPE_IMPLEMENT_INTERFACE (texture));
|
|
|
|
static const CoglTextureVtable cogl_texture_2d_vtable;
|
|
|
|
typedef struct _CoglTexture2DManualRepeatData
|
|
{
|
|
CoglTexture2D *tex_2d;
|
|
CoglMetaTextureCallback callback;
|
|
void *user_data;
|
|
} CoglTexture2DManualRepeatData;
|
|
|
|
static void
|
|
_cogl_texture_2d_free (CoglTexture2D *tex_2d)
|
|
{
|
|
CoglContext *ctx = COGL_TEXTURE (tex_2d)->context;
|
|
|
|
ctx->driver_vtable->texture_2d_free (tex_2d);
|
|
|
|
/* Chain up */
|
|
_cogl_texture_free (COGL_TEXTURE (tex_2d));
|
|
}
|
|
|
|
void
|
|
_cogl_texture_2d_set_auto_mipmap (CoglTexture *tex,
|
|
gboolean value)
|
|
{
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
|
|
tex_2d->auto_mipmap = value;
|
|
}
|
|
|
|
CoglTexture2D *
|
|
_cogl_texture_2d_create_base (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat internal_format,
|
|
CoglTextureLoader *loader)
|
|
{
|
|
CoglTexture2D *tex_2d = g_new (CoglTexture2D, 1);
|
|
CoglTexture *tex = COGL_TEXTURE (tex_2d);
|
|
|
|
_cogl_texture_init (tex, ctx, width, height, internal_format, loader,
|
|
&cogl_texture_2d_vtable);
|
|
|
|
tex_2d->mipmaps_dirty = TRUE;
|
|
tex_2d->auto_mipmap = TRUE;
|
|
tex_2d->is_get_data_supported = TRUE;
|
|
|
|
tex_2d->gl_target = GL_TEXTURE_2D;
|
|
|
|
ctx->driver_vtable->texture_2d_init (tex_2d);
|
|
|
|
return _cogl_texture_2d_object_new (tex_2d);
|
|
}
|
|
|
|
CoglTexture2D *
|
|
cogl_texture_2d_new_with_size (CoglContext *ctx,
|
|
int width,
|
|
int height)
|
|
{
|
|
CoglTextureLoader *loader;
|
|
|
|
g_return_val_if_fail (width >= 1, NULL);
|
|
g_return_val_if_fail (height >= 1, NULL);
|
|
|
|
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_2d_create_base (ctx, width, height,
|
|
COGL_PIXEL_FORMAT_RGBA_8888_PRE, loader);
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_allocate (CoglTexture *tex,
|
|
GError **error)
|
|
{
|
|
CoglContext *ctx = tex->context;
|
|
|
|
return ctx->driver_vtable->texture_2d_allocate (tex, error);
|
|
}
|
|
|
|
CoglTexture2D *
|
|
_cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp,
|
|
gboolean can_convert_in_place)
|
|
{
|
|
CoglTextureLoader *loader;
|
|
|
|
g_return_val_if_fail (bmp != NULL, 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 = can_convert_in_place;
|
|
|
|
return _cogl_texture_2d_create_base (_cogl_bitmap_get_context (bmp),
|
|
cogl_bitmap_get_width (bmp),
|
|
cogl_bitmap_get_height (bmp),
|
|
cogl_bitmap_get_format (bmp),
|
|
loader);
|
|
}
|
|
|
|
CoglTexture2D *
|
|
cogl_texture_2d_new_from_bitmap (CoglBitmap *bmp)
|
|
{
|
|
return _cogl_texture_2d_new_from_bitmap (bmp,
|
|
FALSE); /* can't convert in place */
|
|
}
|
|
|
|
CoglTexture2D *
|
|
cogl_texture_2d_new_from_file (CoglContext *ctx,
|
|
const char *filename,
|
|
GError **error)
|
|
{
|
|
CoglBitmap *bmp;
|
|
CoglTexture2D *tex_2d = NULL;
|
|
|
|
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
|
|
|
bmp = _cogl_bitmap_from_file (ctx, filename, error);
|
|
if (bmp == NULL)
|
|
return NULL;
|
|
|
|
tex_2d = _cogl_texture_2d_new_from_bitmap (bmp,
|
|
TRUE); /* can convert in-place */
|
|
|
|
cogl_object_unref (bmp);
|
|
|
|
return tex_2d;
|
|
}
|
|
|
|
CoglTexture2D *
|
|
cogl_texture_2d_new_from_data (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
const uint8_t *data,
|
|
GError **error)
|
|
{
|
|
CoglBitmap *bmp;
|
|
CoglTexture2D *tex_2d;
|
|
|
|
g_return_val_if_fail (format != COGL_PIXEL_FORMAT_ANY, NULL);
|
|
g_return_val_if_fail (cogl_pixel_format_get_n_planes (format) == 1, NULL);
|
|
g_return_val_if_fail (data != NULL, NULL);
|
|
|
|
/* Rowstride from width if not given */
|
|
if (rowstride == 0)
|
|
rowstride = width * cogl_pixel_format_get_bytes_per_pixel (format, 0);
|
|
|
|
/* Wrap the data into a bitmap */
|
|
bmp = cogl_bitmap_new_for_data (ctx,
|
|
width, height,
|
|
format,
|
|
rowstride,
|
|
(uint8_t *) data);
|
|
|
|
tex_2d = cogl_texture_2d_new_from_bitmap (bmp);
|
|
|
|
cogl_object_unref (bmp);
|
|
|
|
if (tex_2d &&
|
|
!cogl_texture_allocate (COGL_TEXTURE (tex_2d), error))
|
|
{
|
|
cogl_object_unref (tex_2d);
|
|
return NULL;
|
|
}
|
|
|
|
return tex_2d;
|
|
}
|
|
|
|
#if defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base)
|
|
/* NB: The reason we require the width, height and format to be passed
|
|
* even though they may seem redundant is because GLES 1/2 don't
|
|
* provide a way to query these properties. */
|
|
CoglTexture2D *
|
|
cogl_egl_texture_2d_new_from_image (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format,
|
|
EGLImageKHR image,
|
|
CoglEglImageFlags flags,
|
|
GError **error)
|
|
{
|
|
CoglTextureLoader *loader;
|
|
CoglTexture2D *tex;
|
|
|
|
g_return_val_if_fail (_cogl_context_get_winsys (ctx)->constraints &
|
|
COGL_RENDERER_CONSTRAINT_USES_EGL,
|
|
NULL);
|
|
|
|
g_return_val_if_fail (_cogl_has_private_feature
|
|
(ctx,
|
|
COGL_PRIVATE_FEATURE_TEXTURE_2D_FROM_EGL_IMAGE),
|
|
NULL);
|
|
|
|
loader = _cogl_texture_create_loader ();
|
|
loader->src_type = COGL_TEXTURE_SOURCE_TYPE_EGL_IMAGE;
|
|
loader->src.egl_image.image = image;
|
|
loader->src.egl_image.width = width;
|
|
loader->src.egl_image.height = height;
|
|
loader->src.egl_image.format = format;
|
|
loader->src.egl_image.flags = flags;
|
|
|
|
tex = _cogl_texture_2d_create_base (ctx, width, height, format, loader);
|
|
|
|
if (!cogl_texture_allocate (COGL_TEXTURE (tex), error))
|
|
{
|
|
cogl_object_unref (tex);
|
|
return NULL;
|
|
}
|
|
|
|
return tex;
|
|
}
|
|
#endif /* defined (COGL_HAS_EGL_SUPPORT) && defined (EGL_KHR_image_base) */
|
|
|
|
void
|
|
_cogl_texture_2d_externally_modified (CoglTexture *texture)
|
|
{
|
|
if (!cogl_is_texture_2d (texture))
|
|
return;
|
|
|
|
COGL_TEXTURE_2D (texture)->mipmaps_dirty = TRUE;
|
|
}
|
|
|
|
void
|
|
_cogl_texture_2d_copy_from_framebuffer (CoglTexture2D *tex_2d,
|
|
int src_x,
|
|
int src_y,
|
|
int width,
|
|
int height,
|
|
CoglFramebuffer *src_fb,
|
|
int dst_x,
|
|
int dst_y,
|
|
int level)
|
|
{
|
|
CoglTexture *tex = COGL_TEXTURE (tex_2d);
|
|
CoglContext *ctx = tex->context;
|
|
|
|
/* Assert that the storage for this texture has been allocated */
|
|
cogl_texture_allocate (tex, NULL); /* (abort on error) */
|
|
|
|
ctx->driver_vtable->texture_2d_copy_from_framebuffer (tex_2d,
|
|
src_x,
|
|
src_y,
|
|
width,
|
|
height,
|
|
src_fb,
|
|
dst_x,
|
|
dst_y,
|
|
level);
|
|
|
|
tex_2d->mipmaps_dirty = TRUE;
|
|
}
|
|
|
|
static int
|
|
_cogl_texture_2d_get_max_waste (CoglTexture *tex)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_is_sliced (CoglTexture *tex)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_can_hardware_repeat (CoglTexture *tex)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_2d_transform_coords_to_gl (CoglTexture *tex,
|
|
float *s,
|
|
float *t)
|
|
{
|
|
/* The texture coordinates map directly so we don't need to do
|
|
anything */
|
|
}
|
|
|
|
static CoglTransformResult
|
|
_cogl_texture_2d_transform_quad_coords_to_gl (CoglTexture *tex,
|
|
float *coords)
|
|
{
|
|
/* The texture coordinates map directly so we don't need to do
|
|
anything other than check for repeats */
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
if (coords[i] < 0.0f || coords[i] > 1.0f)
|
|
{
|
|
/* Repeat is needed */
|
|
return (_cogl_texture_2d_can_hardware_repeat (tex) ?
|
|
COGL_TRANSFORM_HARDWARE_REPEAT :
|
|
COGL_TRANSFORM_SOFTWARE_REPEAT);
|
|
}
|
|
|
|
/* No repeat is needed */
|
|
return COGL_TRANSFORM_NO_REPEAT;
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_get_gl_texture (CoglTexture *tex,
|
|
GLuint *out_gl_handle,
|
|
GLenum *out_gl_target)
|
|
{
|
|
CoglContext *ctx = tex->context;
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
|
|
if (ctx->driver_vtable->texture_2d_get_gl_handle)
|
|
{
|
|
GLuint handle;
|
|
|
|
if (out_gl_target)
|
|
*out_gl_target = tex_2d->gl_target;
|
|
|
|
handle = ctx->driver_vtable->texture_2d_get_gl_handle (tex_2d);
|
|
|
|
if (out_gl_handle)
|
|
*out_gl_handle = handle;
|
|
|
|
return handle ? TRUE : FALSE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_2d_pre_paint (CoglTexture *tex, CoglTexturePrePaintFlags flags)
|
|
{
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
|
|
/* Only update if the mipmaps are dirty */
|
|
if ((flags & COGL_TEXTURE_NEEDS_MIPMAP) &&
|
|
tex_2d->auto_mipmap && tex_2d->mipmaps_dirty)
|
|
{
|
|
CoglContext *ctx = tex->context;
|
|
|
|
ctx->driver_vtable->texture_2d_generate_mipmap (tex_2d);
|
|
|
|
tex_2d->mipmaps_dirty = FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
_cogl_texture_2d_ensure_non_quad_rendering (CoglTexture *tex)
|
|
{
|
|
/* Nothing needs to be done */
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_set_region (CoglTexture *tex,
|
|
int src_x,
|
|
int src_y,
|
|
int dst_x,
|
|
int dst_y,
|
|
int width,
|
|
int height,
|
|
int level,
|
|
CoglBitmap *bmp,
|
|
GError **error)
|
|
{
|
|
CoglContext *ctx = tex->context;
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
|
|
if (!ctx->driver_vtable->texture_2d_copy_from_bitmap (tex_2d,
|
|
src_x,
|
|
src_y,
|
|
width,
|
|
height,
|
|
bmp,
|
|
dst_x,
|
|
dst_y,
|
|
level,
|
|
error))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
tex_2d->mipmaps_dirty = TRUE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_is_get_data_supported (CoglTexture *tex)
|
|
{
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
CoglContext *ctx = tex->context;
|
|
|
|
return ctx->driver_vtable->texture_2d_is_get_data_supported (tex_2d);
|
|
}
|
|
|
|
static gboolean
|
|
_cogl_texture_2d_get_data (CoglTexture *tex,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
uint8_t *data)
|
|
{
|
|
CoglContext *ctx = tex->context;
|
|
|
|
if (ctx->driver_vtable->texture_2d_get_data)
|
|
{
|
|
CoglTexture2D *tex_2d = COGL_TEXTURE_2D (tex);
|
|
ctx->driver_vtable->texture_2d_get_data (tex_2d, format, rowstride, data);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static CoglPixelFormat
|
|
_cogl_texture_2d_get_format (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_2D (tex)->internal_format;
|
|
}
|
|
|
|
static GLenum
|
|
_cogl_texture_2d_get_gl_format (CoglTexture *tex)
|
|
{
|
|
return COGL_TEXTURE_2D (tex)->gl_internal_format;
|
|
}
|
|
|
|
static const CoglTextureVtable
|
|
cogl_texture_2d_vtable =
|
|
{
|
|
TRUE, /* primitive */
|
|
_cogl_texture_2d_allocate,
|
|
_cogl_texture_2d_set_region,
|
|
_cogl_texture_2d_is_get_data_supported,
|
|
_cogl_texture_2d_get_data,
|
|
NULL, /* foreach_sub_texture_in_region */
|
|
_cogl_texture_2d_get_max_waste,
|
|
_cogl_texture_2d_is_sliced,
|
|
_cogl_texture_2d_can_hardware_repeat,
|
|
_cogl_texture_2d_transform_coords_to_gl,
|
|
_cogl_texture_2d_transform_quad_coords_to_gl,
|
|
_cogl_texture_2d_get_gl_texture,
|
|
_cogl_texture_2d_gl_flush_legacy_texobj_filters,
|
|
_cogl_texture_2d_pre_paint,
|
|
_cogl_texture_2d_ensure_non_quad_rendering,
|
|
_cogl_texture_2d_gl_flush_legacy_texobj_wrap_modes,
|
|
_cogl_texture_2d_get_format,
|
|
_cogl_texture_2d_get_gl_format,
|
|
_cogl_texture_2d_set_auto_mipmap
|
|
};
|