void
_cogl_texture_driver_upload_to_gl (GLenum gl_target,
GLuint gl_handle,
CoglBitmap *source_bmp,
GLint internal_gl_format,
GLuint source_gl_format,
GLuint source_gl_type)
{
int bpp = _cogl_get_format_bpp (source_bmp->format);
CoglBitmap bmp = *source_bmp;
gboolean bmp_owner = FALSE;
/* If the rowstride can't be specified with just GL_ALIGNMENT alone
then we need to copy the bitmap because there is no GL_ROW_LENGTH */
if (source_bmp->rowstride / bpp != source_bmp->width)
{
bmp.rowstride = bpp * bmp.width;
bmp.data = g_malloc (bmp.rowstride * bmp.height);
bmp_owner = TRUE;
_cogl_bitmap_copy_subregion (source_bmp,
&bmp,
0, 0, 0, 0,
bmp.width,
bmp.height);
}
/* Setup gl alignment to match rowstride and top-left corner */
_cogl_texture_driver_prep_gl_for_pixels_upload (bmp.rowstride,
bpp);
GE( glBindTexture (gl_target, gl_handle) );
GE( glTexImage2D (gl_target, 0,
internal_gl_format,
bmp.width, bmp.height,
0,
source_gl_format,
source_gl_type,
bmp.data) );
if (bmp_owner)
g_free (bmp.data);
}
void
_cogl_texture_driver_upload_to_gl (GLenum gl_target,
GLuint gl_handle,
gboolean is_foreign,
CoglBitmap *source_bmp,
GLint internal_gl_format,
GLuint source_gl_format,
GLuint source_gl_type)
{
int bpp = _cogl_get_format_bpp (_cogl_bitmap_get_format (source_bmp));
int rowstride;
int bmp_width = _cogl_bitmap_get_width (source_bmp);
int bmp_height = _cogl_bitmap_get_height (source_bmp);
CoglBitmap *bmp;
guint8 *data;
bmp = prepare_bitmap_alignment_for_upload (source_bmp);
rowstride = _cogl_bitmap_get_rowstride (bmp);
/* Setup gl alignment to match rowstride and top-left corner */
_cogl_texture_driver_prep_gl_for_pixels_upload (rowstride, bpp);
_cogl_bind_gl_texture_transient (gl_target, gl_handle, is_foreign);
data = _cogl_bitmap_bind (bmp, COGL_BUFFER_ACCESS_READ, 0);
GE( glTexImage2D (gl_target, 0,
internal_gl_format,
bmp_width, bmp_height,
0,
source_gl_format,
source_gl_type,
data) );
_cogl_bitmap_unbind (bmp);
cogl_object_unref (bmp);
}
static CoglBool
_cogl_texture_driver_upload_to_gl_3d (CoglContext *ctx,
GLenum gl_target,
GLuint gl_handle,
CoglBool is_foreign,
GLint height,
GLint depth,
CoglBitmap *source_bmp,
GLint internal_gl_format,
GLuint source_gl_format,
GLuint source_gl_type,
CoglError **error)
{
CoglPixelFormat source_format = cogl_bitmap_get_format (source_bmp);
int bpp = _cogl_pixel_format_get_bytes_per_pixel (source_format);
int rowstride = cogl_bitmap_get_rowstride (source_bmp);
int bmp_width = cogl_bitmap_get_width (source_bmp);
int bmp_height = cogl_bitmap_get_height (source_bmp);
uint8_t *data;
GLenum gl_error;
_cogl_bind_gl_texture_transient (gl_target, gl_handle, is_foreign);
/* If the rowstride or image height can't be specified with just
GL_ALIGNMENT alone then we need to copy the bitmap because there
is no GL_ROW_LENGTH */
if (rowstride / bpp != bmp_width ||
height != bmp_height / depth)
{
CoglBitmap *bmp;
int image_height = bmp_height / depth;
CoglPixelFormat source_bmp_format = cogl_bitmap_get_format (source_bmp);
int i;
_cogl_texture_driver_prep_gl_for_pixels_upload (ctx, bmp_width * bpp, bpp);
/* Initialize the texture with empty data and then upload each
image with a sub-region update */
/* Clear any GL errors */
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
;
ctx->glTexImage3D (gl_target,
0, /* level */
internal_gl_format,
bmp_width,
height,
depth,
0,
source_gl_format,
source_gl_type,
NULL);
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
return FALSE;
bmp = _cogl_bitmap_new_with_malloc_buffer (ctx,
bmp_width,
height,
source_bmp_format,
error);
if (!bmp)
return FALSE;
for (i = 0; i < depth; i++)
{
if (!_cogl_bitmap_copy_subregion (source_bmp,
bmp,
0, image_height * i,
0, 0,
bmp_width,
height,
error))
{
cogl_object_unref (bmp);
return FALSE;
}
data = _cogl_bitmap_gl_bind (bmp,
COGL_BUFFER_ACCESS_READ, 0, error);
if (!data)
{
cogl_object_unref (bmp);
return FALSE;
}
/* Clear any GL errors */
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
;
ctx->glTexSubImage3D (gl_target,
0, /* level */
0, /* xoffset */
0, /* yoffset */
i, /* zoffset */
bmp_width, /* width */
height, /* height */
1, /* depth */
source_gl_format,
source_gl_type,
data);
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
{
cogl_object_unref (bmp);
_cogl_bitmap_gl_unbind (bmp);
return FALSE;
}
_cogl_bitmap_gl_unbind (bmp);
}
cogl_object_unref (bmp);
}
else
{
data = _cogl_bitmap_gl_bind (source_bmp, COGL_BUFFER_ACCESS_READ, 0, error);
if (!data)
return FALSE;
_cogl_texture_driver_prep_gl_for_pixels_upload (ctx, rowstride, bpp);
/* Clear any GL errors */
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
;
ctx->glTexImage3D (gl_target,
0, /* level */
internal_gl_format,
bmp_width,
height,
depth,
0,
source_gl_format,
source_gl_type,
data);
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
{
_cogl_bitmap_gl_unbind (source_bmp);
return FALSE;
}
_cogl_bitmap_gl_unbind (source_bmp);
}
return TRUE;
}
static CoglBool
_cogl_texture_driver_upload_to_gl (CoglContext *ctx,
GLenum gl_target,
GLuint gl_handle,
CoglBool is_foreign,
CoglBitmap *source_bmp,
GLint internal_gl_format,
GLuint source_gl_format,
GLuint source_gl_type,
CoglError **error)
{
CoglPixelFormat source_format = cogl_bitmap_get_format (source_bmp);
int bpp = _cogl_pixel_format_get_bytes_per_pixel (source_format);
int rowstride;
int bmp_width = cogl_bitmap_get_width (source_bmp);
int bmp_height = cogl_bitmap_get_height (source_bmp);
CoglBitmap *bmp;
uint8_t *data;
GLenum gl_error;
CoglError *internal_error = NULL;
CoglBool status = TRUE;
bmp = prepare_bitmap_alignment_for_upload (ctx, source_bmp, error);
if (!bmp)
return FALSE;
rowstride = cogl_bitmap_get_rowstride (bmp);
/* Setup gl alignment to match rowstride and top-left corner */
_cogl_texture_driver_prep_gl_for_pixels_upload (ctx, rowstride, bpp);
_cogl_bind_gl_texture_transient (gl_target, gl_handle, is_foreign);
data = _cogl_bitmap_gl_bind (bmp,
COGL_BUFFER_ACCESS_READ,
0, /* hints */
&internal_error);
/* NB: _cogl_bitmap_gl_bind() may return NULL when successful so we
* have to explicitly check the cogl error pointer to catch
* problems... */
if (internal_error)
{
cogl_object_unref (bmp);
_cogl_propagate_error (error, internal_error);
return FALSE;
}
/* Clear any GL errors */
while ((gl_error = ctx->glGetError ()) != GL_NO_ERROR)
;
ctx->glTexImage2D (gl_target, 0,
internal_gl_format,
bmp_width, bmp_height,
0,
source_gl_format,
source_gl_type,
data);
if (_cogl_gl_util_catch_out_of_memory (ctx, error))
status = FALSE;
_cogl_bitmap_gl_unbind (bmp);
cogl_object_unref (bmp);
return status;
}
void
_cogl_texture_driver_upload_to_gl_3d (GLenum gl_target,
GLuint gl_handle,
gboolean is_foreign,
GLint height,
GLint depth,
CoglBitmap *source_bmp,
GLint internal_gl_format,
GLuint source_gl_format,
GLuint source_gl_type)
{
int bpp = _cogl_get_format_bpp (_cogl_bitmap_get_format (source_bmp));
int rowstride = _cogl_bitmap_get_rowstride (source_bmp);
int bmp_width = _cogl_bitmap_get_width (source_bmp);
int bmp_height = _cogl_bitmap_get_height (source_bmp);
guint8 *data;
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
_cogl_bind_gl_texture_transient (gl_target, gl_handle, is_foreign);
/* If the rowstride or image height can't be specified with just
GL_ALIGNMENT alone then we need to copy the bitmap because there
is no GL_ROW_LENGTH */
if (rowstride / bpp != bmp_width ||
height != bmp_height / depth)
{
CoglBitmap *bmp;
int image_height = bmp_height / depth;
int i;
_cogl_texture_driver_prep_gl_for_pixels_upload (bmp_width * bpp, bpp);
/* Initialize the texture with empty data and then upload each
image with a sub-region update */
GE( glTexImage3D (gl_target,
0, /* level */
internal_gl_format,
bmp_width,
height,
depth,
0,
source_gl_format,
source_gl_type,
NULL) );
bmp = _cogl_bitmap_new_from_data (g_malloc (bpp * bmp_width * height),
_cogl_bitmap_get_format (source_bmp),
bmp_width,
height,
bpp * bmp_width,
(CoglBitmapDestroyNotify) g_free,
NULL);
for (i = 0; i < depth; i++)
{
_cogl_bitmap_copy_subregion (source_bmp,
bmp,
0, image_height * i,
0, 0,
bmp_width,
height);
data = _cogl_bitmap_bind (bmp,
COGL_BUFFER_ACCESS_READ, 0);
GE( glTexSubImage3D (gl_target,
0, /* level */
0, /* xoffset */
0, /* yoffset */
i, /* zoffset */
bmp_width, /* width */
height, /* height */
1, /* depth */
source_gl_format,
source_gl_type,
data) );
_cogl_bitmap_unbind (bmp);
}
cogl_object_unref (bmp);
}
else
{
data = _cogl_bitmap_bind (source_bmp, COGL_BUFFER_ACCESS_READ, 0);
_cogl_texture_driver_prep_gl_for_pixels_upload (rowstride, bpp);
GE( glTexImage3D (gl_target,
0, /* level */
internal_gl_format,
bmp_width,
height,
depth,
0,
source_gl_format,
source_gl_type,
data) );
_cogl_bitmap_unbind (source_bmp);
}
}
void
_cogl_texture_driver_upload_subregion_to_gl (GLenum gl_target,
GLuint gl_handle,
gboolean is_foreign,
int src_x,
int src_y,
int dst_x,
int dst_y,
int width,
int height,
CoglBitmap *source_bmp,
GLuint source_gl_format,
GLuint source_gl_type)
{
guint8 *data;
CoglPixelFormat source_format = _cogl_bitmap_get_format (source_bmp);
int bpp = _cogl_get_format_bpp (source_format);
CoglBitmap *slice_bmp;
int rowstride;
/* If we are copying a sub region of the source bitmap then we need
to copy it because GLES does not support GL_UNPACK_ROW_LENGTH */
if (src_x != 0 || src_y != 0 ||
width != _cogl_bitmap_get_width (source_bmp) ||
height != _cogl_bitmap_get_height (source_bmp))
{
rowstride = bpp * width;
rowstride = (rowstride + 3) & ~3;
slice_bmp =
_cogl_bitmap_new_from_data (g_malloc (height * rowstride),
source_format,
width, height,
rowstride,
(CoglBitmapDestroyNotify) g_free,
NULL);
_cogl_bitmap_copy_subregion (source_bmp,
slice_bmp,
src_x, src_y,
0, 0, /* dst_x/y */
width, height);
}
else
{
slice_bmp = prepare_bitmap_alignment_for_upload (source_bmp);
rowstride = _cogl_bitmap_get_rowstride (slice_bmp);
}
/* Setup gl alignment to match rowstride and top-left corner */
_cogl_texture_driver_prep_gl_for_pixels_upload (rowstride, bpp);
data = _cogl_bitmap_bind (slice_bmp, COGL_BUFFER_ACCESS_READ, 0);
_cogl_bind_gl_texture_transient (gl_target, gl_handle, is_foreign);
GE( glTexSubImage2D (gl_target, 0,
dst_x, dst_y,
width, height,
source_gl_format,
source_gl_type,
data) );
_cogl_bitmap_unbind (slice_bmp);
cogl_object_unref (slice_bmp);
}
