static void initData(ModifierData *md)
{
UVWarpModifierData *umd = (UVWarpModifierData *) md;
umd->axis_u = 0;
umd->axis_v = 1;
copy_v2_fl(umd->center, 0.5f);
}
/* reads full rect, converts indices */
uint *ED_view3d_select_id_read(int xmin, int ymin, int xmax, int ymax, uint *r_buf_len)
{
if (UNLIKELY((xmin > xmax) || (ymin > ymax))) {
return NULL;
}
const rcti rect = {
.xmin = xmin,
.xmax = xmax + 1,
.ymin = ymin,
.ymax = ymax + 1,
};
uint buf_len;
uint *buf = ED_view3d_select_id_read_rect(&rect, &buf_len);
if (r_buf_len) {
*r_buf_len = buf_len;
}
return buf;
}
/* ************************************************************* */
static void view3d_stereo_bgpic_setup(Scene *scene, View3D *v3d, Image *ima, ImageUser *iuser)
{
if (BKE_image_is_stereo(ima)) {
iuser->flag |= IMA_SHOW_STEREO;
if ((scene->r.scemode & R_MULTIVIEW) == 0) {
iuser->multiview_eye = STEREO_LEFT_ID;
}
else if (v3d->stereo3d_camera != STEREO_3D_ID) {
/* show only left or right camera */
iuser->multiview_eye = v3d->stereo3d_camera;
}
BKE_image_multiview_index(ima, iuser);
}
else {
iuser->flag &= ~IMA_SHOW_STEREO;
}
}
static void view3d_draw_bgpic(Scene *scene,
Depsgraph *depsgraph,
ARegion *ar,
View3D *v3d,
const bool do_foreground,
const bool do_camera_frame)
{
RegionView3D *rv3d = ar->regiondata;
int fg_flag = do_foreground ? CAM_BGIMG_FLAG_FOREGROUND : 0;
if (v3d->camera == NULL || v3d->camera->type != OB_CAMERA) {
return;
}
Camera *cam = v3d->camera->data;
for (CameraBGImage *bgpic = cam->bg_images.first; bgpic; bgpic = bgpic->next) {
if ((bgpic->flag & CAM_BGIMG_FLAG_FOREGROUND) != fg_flag) {
continue;
}
{
float image_aspect[2];
float x1, y1, x2, y2, centx, centy;
void *lock;
Image *ima = NULL;
/* disable individual images */
if ((bgpic->flag & CAM_BGIMG_FLAG_DISABLED)) {
continue;
}
ImBuf *ibuf = NULL;
ImBuf *freeibuf = NULL;
ImBuf *releaseibuf = NULL;
if (bgpic->source == CAM_BGIMG_SOURCE_IMAGE) {
ima = bgpic->ima;
if (ima == NULL) {
continue;
}
ImageUser iuser = bgpic->iuser;
iuser.scene = scene; /* Needed for render results. */
BKE_image_user_frame_calc(&iuser, (int)DEG_get_ctime(depsgraph));
if (ima->source == IMA_SRC_SEQUENCE && !(iuser.flag & IMA_USER_FRAME_IN_RANGE)) {
ibuf = NULL; /* frame is out of range, dont show */
}
else {
view3d_stereo_bgpic_setup(scene, v3d, ima, &iuser);
ibuf = BKE_image_acquire_ibuf(ima, &iuser, &lock);
releaseibuf = ibuf;
}
image_aspect[0] = ima->aspx;
image_aspect[1] = ima->aspy;
}
else if (bgpic->source == CAM_BGIMG_SOURCE_MOVIE) {
/* TODO: skip drawing when out of frame range (as image sequences do above) */
MovieClip *clip = NULL;
if (bgpic->flag & CAM_BGIMG_FLAG_CAMERACLIP) {
if (scene->camera) {
clip = BKE_object_movieclip_get(scene, scene->camera, true);
}
}
else {
clip = bgpic->clip;
}
if (clip == NULL) {
continue;
}
BKE_movieclip_user_set_frame(&bgpic->cuser, (int)DEG_get_ctime(depsgraph));
ibuf = BKE_movieclip_get_ibuf(clip, &bgpic->cuser);
image_aspect[0] = clip->aspx;
image_aspect[1] = clip->aspy;
/* working with ibuf from image and clip has got different workflow now.
* ibuf acquired from clip is referenced by cache system and should
* be dereferenced after usage. */
freeibuf = ibuf;
}
else {
/* perhaps when loading future files... */
BLI_assert(0);
copy_v2_fl(image_aspect, 1.0f);
}
if (ibuf == NULL) {
continue;
}
if ((ibuf->rect == NULL && ibuf->rect_float == NULL) || ibuf->channels != 4) {
/* invalid image format */
if (freeibuf) {
IMB_freeImBuf(freeibuf);
}
if (releaseibuf) {
BKE_image_release_ibuf(ima, releaseibuf, lock);
}
continue;
}
if (ibuf->rect == NULL) {
IMB_rect_from_float(ibuf);
}
BLI_assert(rv3d->persp == RV3D_CAMOB);
{
if (do_camera_frame) {
rctf vb;
ED_view3d_calc_camera_border(scene, depsgraph, ar, v3d, rv3d, &vb, false);
x1 = vb.xmin;
y1 = vb.ymin;
x2 = vb.xmax;
y2 = vb.ymax;
}
else {
x1 = ar->winrct.xmin;
y1 = ar->winrct.ymin;
x2 = ar->winrct.xmax;
y2 = ar->winrct.ymax;
}
/* apply offset last - camera offset is different to offset in blender units */
/* so this has some sane way of working - this matches camera's shift _exactly_ */
{
const float max_dim = max_ff(x2 - x1, y2 - y1);
const float xof_scale = bgpic->offset[0] * max_dim;
const float yof_scale = bgpic->offset[1] * max_dim;
x1 += xof_scale;
y1 += yof_scale;
x2 += xof_scale;
y2 += yof_scale;
}
centx = (x1 + x2) * 0.5f;
centy = (y1 + y2) * 0.5f;
/* aspect correction */
if (bgpic->flag & CAM_BGIMG_FLAG_CAMERA_ASPECT) {
/* apply aspect from clip */
const float w_src = ibuf->x * image_aspect[0];
const float h_src = ibuf->y * image_aspect[1];
/* destination aspect is already applied from the camera frame */
const float w_dst = x1 - x2;
const float h_dst = y1 - y2;
const float asp_src = w_src / h_src;
const float asp_dst = w_dst / h_dst;
if (fabsf(asp_src - asp_dst) >= FLT_EPSILON) {
if ((asp_src > asp_dst) == ((bgpic->flag & CAM_BGIMG_FLAG_CAMERA_CROP) != 0)) {
/* fit X */
const float div = asp_src / asp_dst;
x1 = ((x1 - centx) * div) + centx;
x2 = ((x2 - centx) * div) + centx;
}
else {
/* fit Y */
const float div = asp_dst / asp_src;
y1 = ((y1 - centy) * div) + centy;
y2 = ((y2 - centy) * div) + centy;
}
}
}
}
/* complete clip? */
rctf clip_rect;
BLI_rctf_init(&clip_rect, x1, x2, y1, y2);
if (bgpic->rotation) {
BLI_rctf_rotate_expand(&clip_rect, &clip_rect, bgpic->rotation);
}
if (clip_rect.xmax < 0 || clip_rect.ymax < 0 || clip_rect.xmin > ar->winx ||
clip_rect.ymin > ar->winy) {
if (freeibuf) {
IMB_freeImBuf(freeibuf);
}
if (releaseibuf) {
BKE_image_release_ibuf(ima, releaseibuf, lock);
}
continue;
}
float zoomx = (x2 - x1) / ibuf->x;
float zoomy = (y2 - y1) / ibuf->y;
/* For some reason; zoom-levels down refuses to use GL_ALPHA_SCALE. */
if (zoomx < 1.0f || zoomy < 1.0f) {
float tzoom = min_ff(zoomx, zoomy);
int mip = 0;
if ((ibuf->userflags & IB_MIPMAP_INVALID) != 0) {
IMB_remakemipmap(ibuf, 0);
ibuf->userflags &= ~IB_MIPMAP_INVALID;
}
else if (ibuf->mipmap[0] == NULL) {
IMB_makemipmap(ibuf, 0);
}
while (tzoom < 1.0f && mip < 8 && ibuf->mipmap[mip]) {
tzoom *= 2.0f;
zoomx *= 2.0f;
zoomy *= 2.0f;
mip++;
}
if (mip > 0) {
ibuf = ibuf->mipmap[mip - 1];
}
}
GPU_depth_test(!do_foreground);
glDepthMask(GL_FALSE);
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
GPU_matrix_push_projection();
GPU_matrix_push();
ED_region_pixelspace(ar);
GPU_matrix_translate_2f(centx, centy);
GPU_matrix_scale_1f(bgpic->scale);
GPU_matrix_rotate_2d(RAD2DEGF(-bgpic->rotation));
if (bgpic->flag & CAM_BGIMG_FLAG_FLIP_X) {
zoomx *= -1.0f;
x1 = x2;
}
if (bgpic->flag & CAM_BGIMG_FLAG_FLIP_Y) {
zoomy *= -1.0f;
y1 = y2;
}
float col[4] = {1.0f, 1.0f, 1.0f, bgpic->alpha};
IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
immDrawPixelsTex(&state,
x1 - centx,
y1 - centy,
ibuf->x,
ibuf->y,
GL_RGBA,
GL_UNSIGNED_BYTE,
GL_LINEAR,
ibuf->rect,
zoomx,
zoomy,
col);
GPU_matrix_pop_projection();
GPU_matrix_pop();
GPU_blend(false);
glDepthMask(GL_TRUE);
GPU_depth_test(true);
if (freeibuf) {
IMB_freeImBuf(freeibuf);
}
if (releaseibuf) {
BKE_image_release_ibuf(ima, releaseibuf, lock);
}
}
}
}
