Differential D11858 Diff 39804 source/blender/windowmanager/xr/intern/wm_xr_draw.c

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source/blender/windowmanager/xr/intern/wm_xr_draw.c

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*		*
* \name Window-Manager XR Drawing		* \name Window-Manager XR Drawing
*		*
* Implements Blender specific drawing functionality for use with the Ghost-XR API.		* Implements Blender specific drawing functionality for use with the Ghost-XR API.
*/		*/

#include <string.h>		#include <string.h>

		#include "BLI_listbase.h"
#include "BLI_math.h"		#include "BLI_math.h"

#include "ED_view3d_offscreen.h"		#include "ED_view3d_offscreen.h"

#include "GHOST_C-api.h"		#include "GHOST_C-api.h"

#include "GPU_viewport.h"		#include "GPU_viewport.h"

▲ Show 20 Lines • Show All 49 Lines • ▼ Show 20 Lines	static void wm_xr_draw_matrices_create(const wmXrDrawData *draw_data,
mul_m4_m4m4(r_view_mat, eye_mat, base_mat);		mul_m4_m4m4(r_view_mat, eye_mat, base_mat);
}		}

static void wm_xr_draw_viewport_buffers_to_active_framebuffer(		static void wm_xr_draw_viewport_buffers_to_active_framebuffer(
const wmXrRuntimeData *runtime_data,		const wmXrRuntimeData *runtime_data,
const wmXrSurfaceData *surface_data,		const wmXrSurfaceData *surface_data,
const GHOST_XrDrawViewInfo *draw_view)		const GHOST_XrDrawViewInfo *draw_view)
{		{
		const wmXrViewportPair *vp = BLI_findlink(&surface_data->viewports, draw_view->view_idx);
		BLI_assert(vp && vp->viewport);

const bool is_upside_down = GHOST_XrSessionNeedsUpsideDownDrawing(runtime_data->context);		const bool is_upside_down = GHOST_XrSessionNeedsUpsideDownDrawing(runtime_data->context);
rcti rect = {.xmin = 0, .ymin = 0, .xmax = draw_view->width - 1, .ymax = draw_view->height - 1};		rcti rect = {.xmin = 0, .ymin = 0, .xmax = draw_view->width - 1, .ymax = draw_view->height - 1};

wmViewport(&rect);		wmViewport(&rect);

/* For upside down contexts, draw with inverted y-values. */		/* For upside down contexts, draw with inverted y-values. */
if (is_upside_down) {		if (is_upside_down) {
SWAP(int, rect.ymin, rect.ymax);		SWAP(int, rect.ymin, rect.ymax);
}		}
GPU_viewport_draw_to_screen_ex(		GPU_viewport_draw_to_screen_ex(vp->viewport, 0, &rect, draw_view->expects_srgb_buffer, true);
surface_data->viewport, 0, &rect, draw_view->expects_srgb_buffer, true);
}		}

/**		/**
* \brief Draw a viewport for a single eye.		* \brief Draw a viewport for a single eye.
*		*
* This is the main viewport drawing function for VR sessions. It's assigned to Ghost-XR as a		* This is the main viewport drawing function for VR sessions. It's assigned to Ghost-XR as a
* callback (see GHOST_XrDrawViewFunc()) and executed for each view (read: eye).		* callback (see GHOST_XrDrawViewFunc()) and executed for each view (read: eye).
*/		*/
Show All 14 Lines	void wm_xr_draw_view(const GHOST_XrDrawViewInfo draw_view, void customdata)
wm_xr_session_draw_data_update(session_state, settings, draw_view, draw_data);		wm_xr_session_draw_data_update(session_state, settings, draw_view, draw_data);
wm_xr_draw_matrices_create(draw_data, draw_view, settings, viewmat, winmat);		wm_xr_draw_matrices_create(draw_data, draw_view, settings, viewmat, winmat);
wm_xr_session_state_update(settings, draw_data, draw_view, session_state);		wm_xr_session_state_update(settings, draw_data, draw_view, session_state);

if (!wm_xr_session_surface_offscreen_ensure(surface_data, draw_view)) {		if (!wm_xr_session_surface_offscreen_ensure(surface_data, draw_view)) {
return;		return;
}		}

		const wmXrViewportPair *vp = BLI_findlink(&surface_data->viewports, draw_view->view_idx);
		BLI_assert(vp && vp->viewport && vp->offscreen);

/* In case a framebuffer is still bound from drawing the last eye. */		/* In case a framebuffer is still bound from drawing the last eye. */
GPU_framebuffer_restore();		GPU_framebuffer_restore();
/* Some systems have drawing glitches without this. */		/* Some systems have drawing glitches without this. */
GPU_clear_depth(1.0f);		GPU_clear_depth(1.0f);

/* Draws the view into the surface_data->viewport's frame-buffers. */		/* Draws the view into the surface_data->viewport's frame-buffers. */
ED_view3d_draw_offscreen_simple(draw_data->depsgraph,		ED_view3d_draw_offscreen_simple(draw_data->depsgraph,
draw_data->scene,		draw_data->scene,
&settings->shading,		&settings->shading,
settings->shading.type,		settings->shading.type,
draw_view->width,		draw_view->width,
draw_view->height,		draw_view->height,
display_flags,		display_flags,
viewmat,		viewmat,
winmat,		winmat,
settings->clip_start,		settings->clip_start,
settings->clip_end,		settings->clip_end,
false,		false,
true,		true,
NULL,		NULL,
false,		false,
surface_data->offscreen,		vp->offscreen,
surface_data->viewport);		vp->viewport);

/* The draw-manager uses both GPUOffscreen and GPUViewport to manage frame and texture buffers. A		/* The draw-manager uses both GPUOffscreen and GPUViewport to manage frame and texture buffers. A
* call to GPU_viewport_draw_to_screen() is still needed to get the final result from the		* call to GPU_viewport_draw_to_screen() is still needed to get the final result from the
* viewport buffers composited together and potentially color managed for display on screen.		* viewport buffers composited together and potentially color managed for display on screen.
* It needs a bound frame-buffer to draw into, for which we simply reuse the GPUOffscreen one.		* It needs a bound frame-buffer to draw into, for which we simply reuse the GPUOffscreen one.
*		*
* In a next step, Ghost-XR will use the currently bound frame-buffer to retrieve the image		* In a next step, Ghost-XR will use the currently bound frame-buffer to retrieve the image
* to be submitted to the OpenXR swap-chain. So do not un-bind the off-screen yet! */		* to be submitted to the OpenXR swap-chain. So do not un-bind the off-screen yet! */

GPU_offscreen_bind(surface_data->offscreen, false);		GPU_offscreen_bind(vp->offscreen, false);

wm_xr_draw_viewport_buffers_to_active_framebuffer(xr_data->runtime, surface_data, draw_view);		wm_xr_draw_viewport_buffers_to_active_framebuffer(xr_data->runtime, surface_data, draw_view);
}		}