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cogl-texture: Share the common code in the set_region virtual

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There was a lot of common code that was copied to all of the backends
to convert the data to a suitable format and wrap it into a CoglBitmap
so that it can be passed to _cogl_texture_driver_upload_subregion_to_gl.
This patch moves the common code to cogl-texture.c so that the virtual
just takes a CoglBitmap that is already in the right format.
This commit is contained in:
Neil Roberts
2010-07-08 15:15:22 +01:00
parent 223317c500
commit 61cbeeacfa
8 changed files with 134 additions and 240 deletions
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74
cogl/cogl-texture.c
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@ -812,6 +812,51 @@ _cogl_texture_ensure_non_quad_rendering (CoglHandle handle)
tex->vtable->ensure_non_quad_rendering (tex);
}
gboolean
_cogl_texture_set_region_from_bitmap (CoglHandle handle,
int src_x,
int src_y,
int dst_x,
int dst_y,
unsigned int dst_width,
unsigned int dst_height,
CoglBitmap *bmp)
{
CoglTexture *tex = COGL_TEXTURE (handle);
CoglBitmap tmp_bmp;
gboolean tmp_bmp_owner = FALSE;
GLenum closest_gl_format;
GLenum closest_gl_type;
gboolean ret;
/* Shortcut out early if the image is empty */
if (dst_width == 0 || dst_height == 0)
return TRUE;
/* Prepare the bitmap so that it will do the premultiplication
conversion */
_cogl_texture_prepare_for_upload (bmp,
cogl_texture_get_format (handle),
NULL,
&tmp_bmp,
&tmp_bmp_owner,
NULL,
&closest_gl_format,
&closest_gl_type);
ret = tex->vtable->set_region (handle,
src_x, src_y,
dst_x, dst_y,
dst_width, dst_height,
&tmp_bmp);
/* Free data if owner */
if (tmp_bmp_owner)
g_free (tmp_bmp.data);
return ret;
}
gboolean
cogl_texture_set_region (CoglHandle handle,
int src_x,
@ -826,21 +871,28 @@ cogl_texture_set_region (CoglHandle handle,
unsigned int rowstride,
const guint8 *data)
{
CoglTexture *tex;
int bpp;
CoglBitmap source_bmp;
if (!cogl_is_texture (handle))
/* Check for valid format */
if (format == COGL_PIXEL_FORMAT_ANY)
return FALSE;
tex = COGL_TEXTURE (handle);
/* Init source bitmap */
source_bmp.width = width;
source_bmp.height = height;
source_bmp.format = format;
source_bmp.data = (guint8 *) data;
return tex->vtable->set_region (tex,
src_x, src_y,
dst_x, dst_y,
dst_width, dst_height,
width, height,
format,
rowstride,
data);
/* Rowstride from width if none specified */
bpp = _cogl_get_format_bpp (format);
source_bmp.rowstride = (rowstride == 0) ? width * bpp : rowstride;
return _cogl_texture_set_region_from_bitmap (handle,
src_x, src_y,
dst_x, dst_y,
dst_width, dst_height,
&source_bmp);
}
/* Reads back the contents of a texture by rendering it to the framebuffer