/**
* Binds a region to a texture image, like it was uploaded by glTexImage2D().
*
* Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
*/
static void
intel_set_texture_image_region(struct gl_context *ctx,
struct gl_texture_image *image,
struct intel_region *region,
GLenum target,
GLenum internalFormat,
gl_format format,
uint32_t offset,
GLuint width,
GLuint height,
GLuint tile_x,
GLuint tile_y)
{
struct intel_context *intel = intel_context(ctx);
struct intel_texture_image *intel_image = intel_texture_image(image);
struct gl_texture_object *texobj = image->TexObject;
struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
bool has_surface_tile_offset = false;
uint32_t draw_x, draw_y;
_mesa_init_teximage_fields(&intel->ctx, image,
width, height, 1,
0, internalFormat, format);
ctx->Driver.FreeTextureImageBuffer(ctx, image);
intel_image->mt = intel_miptree_create_layout(intel, target, image->TexFormat,
0, 0,
width, height, 1,
true);
if (intel_image->mt == NULL)
return;
intel_region_reference(&intel_image->mt->region, region);
intel_image->mt->total_width = width;
intel_image->mt->total_height = height;
intel_image->mt->level[0].slice[0].x_offset = tile_x;
intel_image->mt->level[0].slice[0].y_offset = tile_y;
intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
/* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
* for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
* trouble resolving back to destination image due to alignment issues.
*/
if (!has_surface_tile_offset &&
(draw_x != 0 || draw_y != 0)) {
_mesa_error(ctx, GL_INVALID_OPERATION, __func__);
intel_miptree_release(&intel_image->mt);
return;
}
intel_texobj->needs_validate = true;
intel_image->mt->offset = offset;
assert(region->pitch % region->cpp == 0);
intel_image->base.RowStride = region->pitch / region->cpp;
/* Immediately validate the image to the object. */
intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
}
/**
* Binds a BO to a texture image, as if it was uploaded by glTexImage2D().
*
* Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
*/
static struct intel_mipmap_tree *
create_mt_for_dri_image(struct brw_context *brw,
GLenum target, __DRIimage *image)
{
struct intel_mipmap_tree *mt;
uint32_t draw_x, draw_y;
/* Disable creation of the texture's aux buffers because the driver exposes
* no EGL API to manage them. That is, there is no API for resolving the aux
* buffer's content to the main buffer nor for invalidating the aux buffer's
* content.
*/
mt = intel_miptree_create_for_bo(brw, image->bo, image->format,
0, image->width, image->height, 1,
image->pitch,
MIPTREE_LAYOUT_DISABLE_AUX);
if (mt == NULL)
return NULL;
mt->target = target;
mt->total_width = image->width;
mt->total_height = image->height;
mt->level[0].slice[0].x_offset = image->tile_x;
mt->level[0].slice[0].y_offset = image->tile_y;
intel_miptree_get_tile_offsets(mt, 0, 0, &draw_x, &draw_y);
/* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
* for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
* trouble resolving back to destination image due to alignment issues.
*/
if (!brw->has_surface_tile_offset &&
(draw_x != 0 || draw_y != 0)) {
_mesa_error(&brw->ctx, GL_INVALID_OPERATION, __func__);
intel_miptree_release(&mt);
return NULL;
}
mt->offset = image->offset;
return mt;
}
/**
* Sets up a DRIImage structure to point to a slice out of a miptree.
*/
static void
intel_setup_image_from_mipmap_tree(struct brw_context *brw, __DRIimage *image,
struct intel_mipmap_tree *mt, GLuint level,
GLuint zoffset)
{
intel_miptree_make_shareable(brw, mt);
intel_miptree_check_level_layer(mt, level, zoffset);
image->width = minify(mt->physical_width0, level - mt->first_level);
image->height = minify(mt->physical_height0, level - mt->first_level);
image->pitch = mt->pitch;
image->offset = intel_miptree_get_tile_offsets(mt, level, zoffset,
&image->tile_x,
&image->tile_y);
drm_intel_bo_unreference(image->bo);
image->bo = mt->bo;
drm_intel_bo_reference(mt->bo);
}