static void wm_draw_region_buffer_create(ARegion *ar, bool stereo, bool use_viewport)
{
if (ar->draw_buffer) {
if (ar->draw_buffer->stereo != stereo) {
/* Free draw buffer on stereo changes. */
wm_draw_region_buffer_free(ar);
}
else {
/* Free offscreen buffer on size changes. Viewport auto resizes. */
GPUOffScreen *offscreen = ar->draw_buffer->offscreen[0];
if (offscreen && (GPU_offscreen_width(offscreen) != ar->winx ||
GPU_offscreen_height(offscreen) != ar->winy)) {
wm_draw_region_buffer_free(ar);
}
}
}
if (!ar->draw_buffer) {
if (use_viewport) {
/* Allocate viewport which includes an offscreen buffer with depth
* multisample, etc. */
ar->draw_buffer = MEM_callocN(sizeof(wmDrawBuffer), "wmDrawBuffer");
ar->draw_buffer->viewport[0] = GPU_viewport_create();
ar->draw_buffer->viewport[1] = (stereo) ? GPU_viewport_create() : NULL;
}
else {
/* Allocate offscreen buffer if it does not exist. This one has no
* depth or multisample buffers. 3D view creates own buffers with
* the data it needs. */
GPUOffScreen *offscreen = GPU_offscreen_create(ar->winx, ar->winy, 0, false, false, NULL);
if (!offscreen) {
return;
}
wm_draw_offscreen_texture_parameters(offscreen);
GPUOffScreen *offscreen_right = NULL;
if (stereo) {
offscreen_right = GPU_offscreen_create(ar->winx, ar->winy, 0, false, false, NULL);
if (!offscreen_right) {
GPU_offscreen_free(offscreen);
return;
}
wm_draw_offscreen_texture_parameters(offscreen_right);
}
ar->draw_buffer = MEM_callocN(sizeof(wmDrawBuffer), "wmDrawBuffer");
ar->draw_buffer->offscreen[0] = offscreen;
ar->draw_buffer->offscreen[1] = offscreen_right;
}
ar->draw_buffer->bound_view = -1;
ar->draw_buffer->stereo = stereo;
}
}
static PyObject *pygpu_offscreen_draw_view3d(BPy_GPUOffScreen *self, PyObject *args, PyObject *kwds)
{
static const char *kwlist[] = {"scene", "view3d", "region", "projection_matrix", "modelview_matrix", NULL};
MatrixObject *py_mat_modelview, *py_mat_projection;
PyObject *py_scene, *py_region, *py_view3d;
Scene *scene;
View3D *v3d;
ARegion *ar;
GPUFX *fx;
GPUFXSettings fx_settings;
void *rv3d_mats;
BPY_GPU_OFFSCREEN_CHECK_OBJ(self);
if (!PyArg_ParseTupleAndKeywords(
args, kwds, "OOOO&O&:draw_view3d", (char **)(kwlist),
&py_scene, &py_view3d, &py_region,
pygpu_offscreen_check_matrix, &py_mat_projection,
pygpu_offscreen_check_matrix, &py_mat_modelview) ||
(!(scene = PyC_RNA_AsPointer(py_scene, "Scene")) ||
!(v3d = PyC_RNA_AsPointer(py_view3d, "SpaceView3D")) ||
!(ar = PyC_RNA_AsPointer(py_region, "Region"))))
{
return NULL;
}
fx = GPU_fx_compositor_create();
fx_settings = v3d->fx_settings; /* full copy */
ED_view3d_draw_offscreen_init(scene, v3d);
rv3d_mats = ED_view3d_mats_rv3d_backup(ar->regiondata);
GPU_offscreen_bind(self->ofs, true); /* bind */
ED_view3d_draw_offscreen(
scene, v3d, ar, GPU_offscreen_width(self->ofs), GPU_offscreen_height(self->ofs),
(float(*)[4])py_mat_modelview->matrix, (float(*)[4])py_mat_projection->matrix,
false, true, true, "",
fx, &fx_settings,
self->ofs);
GPU_fx_compositor_destroy(fx);
GPU_offscreen_unbind(self->ofs, true); /* unbind */
ED_view3d_mats_rv3d_restore(ar->regiondata, rv3d_mats);
MEM_freeN(rv3d_mats);
Py_RETURN_NONE;
}
static PyObject *bpygpu_offscreen_draw_view3d(BPyGPUOffScreen *self,
PyObject *args,
PyObject *kwds)
{
MatrixObject *py_mat_view, *py_mat_projection;
PyObject *py_scene, *py_view_layer, *py_region, *py_view3d;
struct Depsgraph *depsgraph;
struct Scene *scene;
struct ViewLayer *view_layer;
View3D *v3d;
ARegion *ar;
struct RV3DMatrixStore *rv3d_mats;
BPY_GPU_OFFSCREEN_CHECK_OBJ(self);
static const char *_keywords[] = {
"scene", "view_layer", "view3d", "region", "view_matrix", "projection_matrix", NULL};
static _PyArg_Parser _parser = {"OOOOO&O&:draw_view3d", _keywords, 0};
if (!_PyArg_ParseTupleAndKeywordsFast(args,
kwds,
&_parser,
&py_scene,
&py_view_layer,
&py_view3d,
&py_region,
Matrix_Parse4x4,
&py_mat_view,
Matrix_Parse4x4,
&py_mat_projection) ||
(!(scene = PyC_RNA_AsPointer(py_scene, "Scene")) ||
!(view_layer = PyC_RNA_AsPointer(py_view_layer, "ViewLayer")) ||
!(v3d = PyC_RNA_AsPointer(py_view3d, "SpaceView3D")) ||
!(ar = PyC_RNA_AsPointer(py_region, "Region")))) {
return NULL;
}
BLI_assert(BKE_id_is_in_global_main(&scene->id));
depsgraph = BKE_scene_get_depsgraph(scene, view_layer, true);
rv3d_mats = ED_view3d_mats_rv3d_backup(ar->regiondata);
GPU_offscreen_bind(self->ofs, true);
ED_view3d_draw_offscreen(depsgraph,
scene,
v3d->shading.type,
v3d,
ar,
GPU_offscreen_width(self->ofs),
GPU_offscreen_height(self->ofs),
(float(*)[4])py_mat_view->matrix,
(float(*)[4])py_mat_projection->matrix,
false,
true,
"",
true,
self->ofs,
NULL);
GPU_offscreen_unbind(self->ofs, true);
ED_view3d_mats_rv3d_restore(ar->regiondata, rv3d_mats);
MEM_freeN(rv3d_mats);
Py_RETURN_NONE;
}
static PyObject *bpygpu_offscreen_width_get(BPyGPUOffScreen *self, void *UNUSED(type))
{
BPY_GPU_OFFSCREEN_CHECK_OBJ(self);
return PyLong_FromLong(GPU_offscreen_width(self->ofs));
}
