Exemple #1
0
static unsigned char *get_alpha_clone_image(const bContext *C, Scene *scene, int *width, int *height)
{
	Brush *brush = BKE_paint_brush(&scene->toolsettings->imapaint.paint);
	ImBuf *ibuf;
	unsigned int size, alpha;
	unsigned char *display_buffer;
	unsigned char *rect, *cp;
	void *cache_handle;

	if (!brush || !brush->clone.image)
		return NULL;
	
	ibuf = BKE_image_acquire_ibuf(brush->clone.image, NULL, NULL);

	if (!ibuf)
		return NULL;

	display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, &cache_handle);

	if (!display_buffer) {
		BKE_image_release_ibuf(brush->clone.image, ibuf, NULL);
		IMB_display_buffer_release(cache_handle);

		return NULL;
	}

	rect = MEM_dupallocN(display_buffer);

	IMB_display_buffer_release(cache_handle);

	if (!rect) {
		BKE_image_release_ibuf(brush->clone.image, ibuf, NULL);
		return NULL;
	}

	*width = ibuf->x;
	*height = ibuf->y;

	size = (*width) * (*height);
	alpha = (unsigned char)255 * brush->clone.alpha;
	cp = rect;

	while (size-- > 0) {
		cp[3] = alpha;
		cp += 4;
	}

	BKE_image_release_ibuf(brush->clone.image, ibuf, NULL);

	return rect;
}
Exemple #2
0
static void draw_image_buffer(const bContext *C, SpaceImage *sima, ARegion *ar, Scene *scene, ImBuf *ibuf, float fx, float fy, float zoomx, float zoomy)
{
	int x, y;

	/* set zoom */
	glPixelZoom(zoomx, zoomy);

	/* find window pixel coordinates of origin */
	UI_view2d_to_region_no_clip(&ar->v2d, fx, fy, &x, &y);

	/* this part is generic image display */
	if (sima->flag & SI_SHOW_ALPHA) {
		if (ibuf->rect)
			sima_draw_alpha_pixels(x, y, ibuf->x, ibuf->y, ibuf->rect);
		else if (ibuf->rect_float && ibuf->channels == 4)
			sima_draw_alpha_pixelsf(x, y, ibuf->x, ibuf->y, ibuf->rect_float);
	}
	else if (sima->flag & SI_SHOW_ZBUF && (ibuf->zbuf || ibuf->zbuf_float || (ibuf->channels == 1))) {
		if (ibuf->zbuf)
			sima_draw_zbuf_pixels(x, y, ibuf->x, ibuf->y, ibuf->zbuf);
		else if (ibuf->zbuf_float)
			sima_draw_zbuffloat_pixels(scene, x, y, ibuf->x, ibuf->y, ibuf->zbuf_float);
		else if (ibuf->channels == 1)
			sima_draw_zbuffloat_pixels(scene, x, y, ibuf->x, ibuf->y, ibuf->rect_float);
	}
	else {
		unsigned char *display_buffer;
		void *cache_handle;

		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

		if (sima->flag & SI_USE_ALPHA) {
			fdrawcheckerboard(x, y, x + ibuf->x * zoomx, y + ibuf->y * zoomy);
		}
		else {
			glColor4f(0.0f, 0.0f, 0.0f, 1.0f);
			glRecti(x, y, x + ibuf->x * zoomx, y + ibuf->y * zoomy);
		}

		display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, &cache_handle);

		if (display_buffer)
			glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, display_buffer);
#if 0
		else
			glaDrawPixelsSafe(x, y, ibuf->x, ibuf->y, ibuf->x, GL_RGBA, GL_FLOAT, ibuf->rect_float);
#endif

		IMB_display_buffer_release(cache_handle);

		glDisable(GL_BLEND);
	}

	/* reset zoom */
	glPixelZoom(1.0f, 1.0f);
}
Exemple #3
0
static void draw_image_buffer_tiled(SpaceImage *sima, ARegion *ar, Scene *scene, Image *ima, ImBuf *ibuf, float fx, float fy, float zoomx, float zoomy)
{
	unsigned char *display_buffer;
	unsigned int *rect;
	int dx, dy, sx, sy, x, y;
	void *cache_handle;

	/* verify valid values, just leave this a while */
	if (ima->xrep < 1) return;
	if (ima->yrep < 1) return;

	if (ima->flag & IMA_VIEW_AS_RENDER)
		display_buffer = IMB_display_buffer_acquire(ibuf, &scene->view_settings, &scene->display_settings, &cache_handle);
	else
		display_buffer = IMB_display_buffer_acquire(ibuf, NULL, &scene->display_settings, &cache_handle);

	if (!display_buffer)
		return;

	glPixelZoom(zoomx, zoomy);

	if (sima->curtile >= ima->xrep * ima->yrep)
		sima->curtile = ima->xrep * ima->yrep - 1;
	
	/* retrieve part of image buffer */
	dx = max_ii(ibuf->x / ima->xrep, 1);
	dy = max_ii(ibuf->y / ima->yrep, 1);
	sx = (sima->curtile % ima->xrep) * dx;
	sy = (sima->curtile / ima->xrep) * dy;
	rect = get_part_from_buffer((unsigned int *)display_buffer, ibuf->x, sx, sy, sx + dx, sy + dy);
	
	/* draw repeated */
	for (sy = 0; sy + dy <= ibuf->y; sy += dy) {
		for (sx = 0; sx + dx <= ibuf->x; sx += dx) {
			UI_view2d_view_to_region(&ar->v2d, fx + (float)sx / (float)ibuf->x, fy + (float)sy / (float)ibuf->y, &x, &y);

			glaDrawPixelsSafe(x, y, dx, dy, dx, GL_RGBA, GL_UNSIGNED_BYTE, rect);
		}
	}

	glPixelZoom(1.0f, 1.0f);

	IMB_display_buffer_release(cache_handle);

	MEM_freeN(rect);
}
Exemple #4
0
/* Draw given image buffer on a screen using GLSL for display transform */
void glaDrawImBuf_glsl(ImBuf *ibuf, float x, float y, int zoomfilter,
                       ColorManagedViewSettings *view_settings,
                       ColorManagedDisplaySettings *display_settings)
{
	bool force_fallback = false;
	bool need_fallback = true;

	/* Early out */
	if (ibuf->rect == NULL && ibuf->rect_float == NULL)
		return;

	/* Dithering is not supported on GLSL yet */
	force_fallback |= ibuf->dither != 0.0f;

	/* Single channel images could not be transformed using GLSL yet */
	force_fallback |= ibuf->channels == 1;

	/* If user decided not to use GLSL, fallback to glaDrawPixelsAuto */
	force_fallback |= (U.image_draw_method != IMAGE_DRAW_METHOD_GLSL);

	/* This is actually lots of crap, but currently not sure about
	 * more clear way to bypass partial buffer update crappyness
	 * while rendering.
	 *
	 * The thing is -- render engines are only updating byte and
	 * display buffers for active render result opened in image
	 * editor. This works fine to show render progress without
	 * switching render layers in image editor user, but this is
	 * completely useless for GLSL display, where we need to have
	 * original buffer which we could color manage.
	 *
	 * For the time of rendering, we'll stick back to slower CPU
	 * display buffer update. GLSL could be used as soon as some
	 * fixes (?) are done in render itself, so we'll always have
	 * image buffer with relevant float buffer opened while
	 * rendering.
	 *
	 * On the other hand, when using Cycles, stressing GPU with
	 * GLSL could backfire on a performance.
	 *                                         - sergey -
	 */
	if (G.is_rendering) {
		/* Try to detect whether we're drawing render result,
		 * other images could have both rect and rect_float
		 * but they'll be synchronized
		 */
		if (ibuf->rect_float && ibuf->rect &&
		    ((ibuf->mall & IB_rectfloat) == 0))
		{
			force_fallback = true;
		}
	}

	/* Try to draw buffer using GLSL display transform */
	if (force_fallback == false) {
		int ok;

		if (ibuf->rect_float) {
			if (ibuf->float_colorspace) {
				ok = IMB_colormanagement_setup_glsl_draw_from_space(view_settings, display_settings,
				                                                    ibuf->float_colorspace, TRUE);
			}
			else {
				ok = IMB_colormanagement_setup_glsl_draw(view_settings, display_settings, TRUE);
			}
		}
		else {
			ok = IMB_colormanagement_setup_glsl_draw_from_space(view_settings, display_settings,
			                                                    ibuf->rect_colorspace, FALSE);
		}

		if (ok) {
			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glColor4f(1.0, 1.0, 1.0, 1.0);

			if (ibuf->rect_float) {
				int format = 0;

				if (ibuf->channels == 3)
					format = GL_RGB;
				else if (ibuf->channels == 4)
					format = GL_RGBA;
				else
					BLI_assert(!"Incompatible number of channels for GLSL display");

				if (format != 0) {
					glaDrawPixelsTex(x, y, ibuf->x, ibuf->y, format, GL_FLOAT,
					                 zoomfilter, ibuf->rect_float);
				}
			}
			else if (ibuf->rect) {
				/* ibuf->rect is always RGBA */
				glaDrawPixelsTex(x, y, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE,
				                 zoomfilter, ibuf->rect);
			}

			IMB_colormanagement_finish_glsl_draw();

			need_fallback = false;
		}
	}

	/* In case GLSL failed or not usable, fallback to glaDrawPixelsAuto */
	if (need_fallback) {
		unsigned char *display_buffer;
		void *cache_handle;

		display_buffer = IMB_display_buffer_acquire(ibuf, view_settings, display_settings, &cache_handle);

		if (display_buffer)
			glaDrawPixelsAuto(x, y, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE,
			                  zoomfilter, display_buffer);

		IMB_display_buffer_release(cache_handle);
	}
}
static void draw_plane_marker_image(Scene *scene,
                                    MovieTrackingPlaneTrack *plane_track,
                                    MovieTrackingPlaneMarker *plane_marker)
{
	Image *image = plane_track->image;
	ImBuf *ibuf;
	void *lock;

	if (image == NULL) {
		return;
	}

	ibuf = BKE_image_acquire_ibuf(image, NULL, &lock);

	if (ibuf) {
		unsigned char *display_buffer;
		void *cache_handle;

		if (image->flag & IMA_VIEW_AS_RENDER) {
			display_buffer = IMB_display_buffer_acquire(ibuf,
			                                            &scene->view_settings,
			                                            &scene->display_settings,
			                                            &cache_handle);
		}
		else {
			display_buffer = IMB_display_buffer_acquire(ibuf, NULL,
			                                            &scene->display_settings,
			                                            &cache_handle);
		}

		if (display_buffer) {
			GLuint texid, last_texid;
			float frame_corners[4][2] = {{0.0f, 0.0f},
			                             {1.0f, 0.0f},
			                             {1.0f, 1.0f},
			                             {0.0f, 1.0f}};
			float perspective_matrix[3][3];
			float gl_matrix[4][4];
			bool transparent = false;
			BKE_tracking_homography_between_two_quads(frame_corners,
			                                          plane_marker->corners,
			                                          perspective_matrix);

			homogeneous_2d_to_gl_matrix(perspective_matrix, gl_matrix);

			if (plane_track->image_opacity != 1.0f || ibuf->planes == 32) {
				transparent = true;
				glEnable(GL_BLEND);
				glBlendFunc(GL_SRC_ALPHA,  GL_ONE_MINUS_SRC_ALPHA);
			}

			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glColor4f(1.0, 1.0, 1.0, plane_track->image_opacity);

			last_texid = glaGetOneInteger(GL_TEXTURE_2D);
			glEnable(GL_TEXTURE_2D);
			glGenTextures(1, (GLuint *)&texid);

			glBindTexture(GL_TEXTURE_2D, texid);

			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, ibuf->x, ibuf->y, 0, GL_RGBA,
			             GL_UNSIGNED_BYTE, display_buffer);

			glPushMatrix();
			glMultMatrixf(gl_matrix);

			glBegin(GL_QUADS);
			glTexCoord2f(0.0f, 0.0f); glVertex2f(0.0f, 0.0f);
			glTexCoord2f(1.0f, 0.0f); glVertex2f(1.0f, 0.0f);
			glTexCoord2f(1.0f, 1.0f); glVertex2f(1.0f, 1.0f);
			glTexCoord2f(0.0f, 1.0f); glVertex2f(0.0f, 1.0f);
			glEnd();

			glPopMatrix();

			glBindTexture(GL_TEXTURE_2D, last_texid);
			glDisable(GL_TEXTURE_2D);

			if (transparent) {
				glDisable(GL_BLEND);
			}
		}

		IMB_display_buffer_release(cache_handle);
	}

	BKE_image_release_ibuf(image, ibuf, lock);
}
void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq, int cfra, int frame_ofs, int draw_overlay)
{
	struct Main *bmain = CTX_data_main(C);
	struct ImBuf *ibuf = NULL;
	struct ImBuf *scope = NULL;
	struct View2D *v2d = &ar->v2d;
	/* int rectx, recty; */ /* UNUSED */
	float viewrectx, viewrecty;
	float render_size = 0.0;
	float proxy_size = 100.0;
	float col[3];
	GLuint texid;
	GLuint last_texid;
	void *display_buffer;
	void *cache_handle = NULL;
	const int is_imbuf = ED_space_sequencer_check_show_imbuf(sseq);
	int format, type;
	bool glsl_used = false;

	if (G.is_rendering == FALSE && (scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
		/* stop all running jobs, except screen one. currently previews frustrate Render
		 * needed to make so sequencer's rendering doesn't conflict with compositor
		 */
		WM_jobs_kill_type(CTX_wm_manager(C), WM_JOB_TYPE_COMPOSITE);

		if ((scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
			/* in case of final rendering used for preview, kill all previews,
			 * otherwise threading conflict will happen in rendering module
			 */
			WM_jobs_kill_type(CTX_wm_manager(C), WM_JOB_TYPE_RENDER_PREVIEW);
		}
	}

	render_size = sseq->render_size;
	if (render_size == 0) {
		render_size = scene->r.size;
	}
	else {
		proxy_size = render_size;
	}
	if (render_size < 0) {
		return;
	}

	viewrectx = (render_size * (float)scene->r.xsch) / 100.0f;
	viewrecty = (render_size * (float)scene->r.ysch) / 100.0f;

	/* rectx = viewrectx + 0.5f; */ /* UNUSED */
	/* recty = viewrecty + 0.5f; */ /* UNUSED */

	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
		viewrectx *= scene->r.xasp / scene->r.yasp;
		viewrectx /= proxy_size / 100.0f;
		viewrecty /= proxy_size / 100.0f;
	}

	if (!draw_overlay || sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) {
		UI_GetThemeColor3fv(TH_SEQ_PREVIEW, col);
		glClearColor(col[0], col[1], col[2], 0.0);
		glClear(GL_COLOR_BUFFER_BIT);
	}

	/* without this colors can flicker from previous opengl state */
	glColor4ub(255, 255, 255, 255);

	UI_view2d_totRect_set(v2d, viewrectx + 0.5f, viewrecty + 0.5f);
	UI_view2d_curRect_validate(v2d);

	/* only initialize the preview if a render is in progress */
	if (G.is_rendering)
		return;

	ibuf = sequencer_ibuf_get(bmain, scene, sseq, cfra, frame_ofs);
	
	if (ibuf == NULL)
		return;

	if (ibuf->rect == NULL && ibuf->rect_float == NULL)
		return;

	if (sseq->mainb != SEQ_DRAW_IMG_IMBUF || sseq->zebra != 0) {
		SequencerScopes *scopes = &sseq->scopes;

		sequencer_check_scopes(scopes, ibuf);

		switch (sseq->mainb) {
			case SEQ_DRAW_IMG_IMBUF:
				if (!scopes->zebra_ibuf) {
					ImBuf *display_ibuf = IMB_dupImBuf(ibuf);

					if (display_ibuf->rect_float) {
						IMB_colormanagement_imbuf_make_display_space(display_ibuf, &scene->view_settings,
						                                             &scene->display_settings);
					}
					scopes->zebra_ibuf = make_zebra_view_from_ibuf(display_ibuf, sseq->zebra);
					IMB_freeImBuf(display_ibuf);
				}
				scope = scopes->zebra_ibuf;
				break;
			case SEQ_DRAW_IMG_WAVEFORM:
				if ((sseq->flag & SEQ_DRAW_COLOR_SEPARATED) != 0) {
					if (!scopes->sep_waveform_ibuf)
						scopes->sep_waveform_ibuf = sequencer_make_scope(scene, ibuf, make_sep_waveform_view_from_ibuf);
					scope = scopes->sep_waveform_ibuf;
				}
				else {
					if (!scopes->waveform_ibuf)
						scopes->waveform_ibuf = sequencer_make_scope(scene, ibuf, make_waveform_view_from_ibuf);
					scope = scopes->waveform_ibuf;
				}
				break;
			case SEQ_DRAW_IMG_VECTORSCOPE:
				if (!scopes->vector_ibuf)
					scopes->vector_ibuf = sequencer_make_scope(scene, ibuf, make_vectorscope_view_from_ibuf);
				scope = scopes->vector_ibuf;
				break;
			case SEQ_DRAW_IMG_HISTOGRAM:
				if (!scopes->histogram_ibuf)
					scopes->histogram_ibuf = sequencer_make_scope(scene, ibuf, make_histogram_view_from_ibuf);
				scope = scopes->histogram_ibuf;
				break;
		}

		scopes->reference_ibuf = ibuf;
	}

	/* setting up the view - actual drawing starts here */
	UI_view2d_view_ortho(v2d);

	/* only draw alpha for main buffer */
	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
		if (sseq->flag & SEQ_USE_ALPHA) {
			glEnable(GL_BLEND);
			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

			fdrawcheckerboard(v2d->tot.xmin, v2d->tot.ymin, v2d->tot.xmax, v2d->tot.ymax);
			glColor4f(1.0, 1.0, 1.0, 1.0);
		}
	}

	if (scope) {
		IMB_freeImBuf(ibuf);
		ibuf = scope;

		if (ibuf->rect_float && ibuf->rect == NULL) {
			IMB_rect_from_float(ibuf);
		}

		display_buffer = (unsigned char *)ibuf->rect;
		format = GL_RGBA;
		type = GL_UNSIGNED_BYTE;
	}
	else {
		bool force_fallback = false;

		force_fallback |= (U.image_draw_method != IMAGE_DRAW_METHOD_GLSL);
		force_fallback |= (ibuf->dither != 0.0f);

		if (force_fallback) {
			/* Fallback to CPU based color space conversion */
			glsl_used = false;
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
			display_buffer = NULL;
		}
		else if (ibuf->rect_float) {
			display_buffer = ibuf->rect_float;

			if (ibuf->channels == 4) {
				format = GL_RGBA;
			}
			else if (ibuf->channels == 3) {
				format = GL_RGB;
			}
			else {
				BLI_assert(!"Incompatible number of channels for float buffer in sequencer");
				format = GL_RGBA;
				display_buffer = NULL;
			}

			type = GL_FLOAT;

			if (ibuf->float_colorspace) {
				glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(C, ibuf->float_colorspace, true);
			}
			else {
				glsl_used = IMB_colormanagement_setup_glsl_draw_ctx(C, true);
			}
		}
		else if (ibuf->rect) {
			display_buffer = ibuf->rect;
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;

			glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(C, ibuf->rect_colorspace, false);
		}
		else {
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
			display_buffer = NULL;
		}

		/* there's a data to be displayed, but GLSL is not initialized
		 * properly, in this case we fallback to CPU-based display transform
		 */
		if ((ibuf->rect || ibuf->rect_float) && !glsl_used) {
			display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, &cache_handle);
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
		}
	}

	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glColor4f(1.0, 1.0, 1.0, 1.0);

	last_texid = glaGetOneInteger(GL_TEXTURE_2D);
	glEnable(GL_TEXTURE_2D);
	glGenTextures(1, (GLuint *)&texid);

	glBindTexture(GL_TEXTURE_2D, texid);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

	if (type == GL_FLOAT)
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, ibuf->x, ibuf->y, 0, format, type, display_buffer);
	else
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, ibuf->x, ibuf->y, 0, format, type, display_buffer);

	glBegin(GL_QUADS);

	if (draw_overlay) {
		if (sseq->overlay_type == SEQ_DRAW_OVERLAY_RECT) {
			rctf tot_clip;
			tot_clip.xmin = v2d->tot.xmin + (fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->over_border.xmin);
			tot_clip.ymin = v2d->tot.ymin + (fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->over_border.ymin);
			tot_clip.xmax = v2d->tot.xmin + (fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->over_border.xmax);
			tot_clip.ymax = v2d->tot.ymin + (fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->over_border.ymax);

			glTexCoord2f(scene->ed->over_border.xmin, scene->ed->over_border.ymin); glVertex2f(tot_clip.xmin, tot_clip.ymin);
			glTexCoord2f(scene->ed->over_border.xmin, scene->ed->over_border.ymax); glVertex2f(tot_clip.xmin, tot_clip.ymax);
			glTexCoord2f(scene->ed->over_border.xmax, scene->ed->over_border.ymax); glVertex2f(tot_clip.xmax, tot_clip.ymax);
			glTexCoord2f(scene->ed->over_border.xmax, scene->ed->over_border.ymin); glVertex2f(tot_clip.xmax, tot_clip.ymin);
		}
		else if (sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) {
			glTexCoord2f(0.0f, 0.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymin);
			glTexCoord2f(0.0f, 1.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymax);
			glTexCoord2f(1.0f, 1.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymax);
			glTexCoord2f(1.0f, 0.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymin);
		}
	}
	else {
		glTexCoord2f(0.0f, 0.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymin);
		glTexCoord2f(0.0f, 1.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymax);
		glTexCoord2f(1.0f, 1.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymax);
		glTexCoord2f(1.0f, 0.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymin);
	}
	glEnd();
	glBindTexture(GL_TEXTURE_2D, last_texid);
	glDisable(GL_TEXTURE_2D);
	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA)
		glDisable(GL_BLEND);
	glDeleteTextures(1, &texid);

	if (glsl_used)
		IMB_colormanagement_finish_glsl_draw();

	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {

		float x1 = v2d->tot.xmin;
		float y1 = v2d->tot.ymin;
		float x2 = v2d->tot.xmax;
		float y2 = v2d->tot.ymax;

		/* border */
		setlinestyle(3);

		UI_ThemeColorBlendShade(TH_WIRE, TH_BACK, 1.0, 0);

		glBegin(GL_LINE_LOOP);
		glVertex2f(x1 - 0.5f, y1 - 0.5f);
		glVertex2f(x1 - 0.5f, y2 + 0.5f);
		glVertex2f(x2 + 0.5f, y2 + 0.5f);
		glVertex2f(x2 + 0.5f, y1 - 0.5f);
		glEnd();

		/* safety border */
		if ((sseq->flag & SEQ_DRAW_SAFE_MARGINS) != 0) {
			float fac = 0.1;

			float a = fac * (x2 - x1);
			x1 += a;
			x2 -= a;

			a = fac * (y2 - y1);
			y1 += a;
			y2 -= a;

			glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);

			uiSetRoundBox(UI_CNR_ALL);
			uiDrawBox(GL_LINE_LOOP, x1, y1, x2, y2, 12.0);

			glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

		}

		setlinestyle(0);
	}
	
	if (sseq->flag & SEQ_SHOW_GPENCIL) {
		if (is_imbuf) {
			/* draw grease-pencil (image aligned) */
			draw_gpencil_2dimage(C);
		}
	}

	if (!scope)
		IMB_freeImBuf(ibuf);
	
	/* ortho at pixel level */
	UI_view2d_view_restore(C);
	
	if (sseq->flag & SEQ_SHOW_GPENCIL) {
		if (is_imbuf) {
			/* draw grease-pencil (screen aligned) */
			draw_gpencil_view2d(C, 0);
		}
	}


	/* NOTE: sequencer mask editing isnt finished, the draw code is working but editing not,
	 * for now just disable drawing since the strip frame will likely be offset */

	//if (sc->mode == SC_MODE_MASKEDIT) {
	if (0 && sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
		Mask *mask = BKE_sequencer_mask_get(scene);

		if (mask) {
			int width, height;
			float aspx = 1.0f, aspy = 1.0f;
			// ED_mask_get_size(C, &width, &height);

			//Scene *scene = CTX_data_scene(C);
			width = (scene->r.size * scene->r.xsch) / 100;
			height = (scene->r.size * scene->r.ysch) / 100;

			ED_mask_draw_region(mask, ar,
			                    0, 0,  /* TODO */
			                    width, height,
			                    aspx, aspy,
			                    FALSE, TRUE,
			                    NULL, C);
		}
	}

	if (cache_handle)
		IMB_display_buffer_release(cache_handle);
}
Exemple #7
0
void draw_image_seq(const bContext *C, Scene *scene, ARegion *ar, SpaceSeq *sseq, int cfra, int frame_ofs, bool draw_overlay, bool draw_backdrop)
{
	struct Main *bmain = CTX_data_main(C);
	struct ImBuf *ibuf = NULL;
	struct ImBuf *scope = NULL;
	struct View2D *v2d = &ar->v2d;
	/* int rectx, recty; */ /* UNUSED */
	float viewrect[2];
	float col[3];
	GLuint texid;
	GLuint last_texid;
	void *display_buffer;
	void *cache_handle = NULL;
	const bool is_imbuf = ED_space_sequencer_check_show_imbuf(sseq);
	int format, type;
	bool glsl_used = false;
	const bool draw_gpencil = ((sseq->flag & SEQ_SHOW_GPENCIL) && sseq->gpd);
	const char *names[2] = {STEREO_LEFT_NAME, STEREO_RIGHT_NAME};
	bool draw_metadata = false;

	if (G.is_rendering == false && (scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
		/* stop all running jobs, except screen one. currently previews frustrate Render
		 * needed to make so sequencer's rendering doesn't conflict with compositor
		 */
		WM_jobs_kill_type(CTX_wm_manager(C), NULL, WM_JOB_TYPE_COMPOSITE);

		if ((scene->r.seq_flag & R_SEQ_GL_PREV) == 0) {
			/* in case of final rendering used for preview, kill all previews,
			 * otherwise threading conflict will happen in rendering module
			 */
			WM_jobs_kill_type(CTX_wm_manager(C), NULL, WM_JOB_TYPE_RENDER_PREVIEW);
		}
	}

	if ((!draw_overlay || sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) && !draw_backdrop) {
		UI_GetThemeColor3fv(TH_SEQ_PREVIEW, col);
		glClearColor(col[0], col[1], col[2], 0.0);
		glClear(GL_COLOR_BUFFER_BIT);
	}

	/* without this colors can flicker from previous opengl state */
	glColor4ub(255, 255, 255, 255);

	/* only initialize the preview if a render is in progress */
	if (G.is_rendering)
		return;

	if (sseq->render_size == SEQ_PROXY_RENDER_SIZE_NONE) {
		return;
	}

	/* for now we only support Left/Right */
	ibuf = sequencer_ibuf_get(bmain, scene, sseq, cfra, frame_ofs, names[sseq->multiview_eye]);

	if ((ibuf == NULL) ||
	    (ibuf->rect == NULL && ibuf->rect_float == NULL))
	{
		/* gpencil can also be drawn without a valid imbuf */
		if (draw_gpencil && is_imbuf) {
			sequencer_display_size(scene, sseq, viewrect);

			sequencer_draw_background(sseq, v2d, viewrect);
			sequencer_draw_borders(sseq, v2d, scene);

			sequencer_draw_gpencil(C);
		}
		return;
	}

	sequencer_display_size(scene, sseq, viewrect);

	if (!draw_backdrop && (sseq->mainb != SEQ_DRAW_IMG_IMBUF || sseq->zebra != 0)) {
		SequencerScopes *scopes = &sseq->scopes;

		sequencer_check_scopes(scopes, ibuf);

		switch (sseq->mainb) {
			case SEQ_DRAW_IMG_IMBUF:
				if (!scopes->zebra_ibuf) {
					ImBuf *display_ibuf = IMB_dupImBuf(ibuf);

					if (display_ibuf->rect_float) {
						IMB_colormanagement_imbuf_make_display_space(display_ibuf, &scene->view_settings,
						                                             &scene->display_settings);
					}
					scopes->zebra_ibuf = make_zebra_view_from_ibuf(display_ibuf, sseq->zebra);
					IMB_freeImBuf(display_ibuf);
				}
				scope = scopes->zebra_ibuf;
				break;
			case SEQ_DRAW_IMG_WAVEFORM:
				if ((sseq->flag & SEQ_DRAW_COLOR_SEPARATED) != 0) {
					if (!scopes->sep_waveform_ibuf)
						scopes->sep_waveform_ibuf = sequencer_make_scope(scene, ibuf, make_sep_waveform_view_from_ibuf);
					scope = scopes->sep_waveform_ibuf;
				}
				else {
					if (!scopes->waveform_ibuf)
						scopes->waveform_ibuf = sequencer_make_scope(scene, ibuf, make_waveform_view_from_ibuf);
					scope = scopes->waveform_ibuf;
				}
				break;
			case SEQ_DRAW_IMG_VECTORSCOPE:
				if (!scopes->vector_ibuf)
					scopes->vector_ibuf = sequencer_make_scope(scene, ibuf, make_vectorscope_view_from_ibuf);
				scope = scopes->vector_ibuf;
				break;
			case SEQ_DRAW_IMG_HISTOGRAM:
				if (!scopes->histogram_ibuf)
					scopes->histogram_ibuf = sequencer_make_scope(scene, ibuf, make_histogram_view_from_ibuf);
				scope = scopes->histogram_ibuf;
				break;
		}

		/* future files may have new scopes we don't catch above */
		if (scope) {
			scopes->reference_ibuf = ibuf;
			if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
				/* scopes drawn in image preview use viewrect from orig ibuf - currently that's only zebra */
			}
			else {
				viewrect[0] = scope->x;
				viewrect[1] = scope->y;
			}
		}
		else {
			scopes->reference_ibuf = NULL;
		}
	}

	if (!draw_backdrop) {
		sequencer_draw_background(sseq, v2d, viewrect);
	}

	if (scope) {
		IMB_freeImBuf(ibuf);
		ibuf = scope;

		if (ibuf->rect_float && ibuf->rect == NULL) {
			IMB_rect_from_float(ibuf);
		}

		display_buffer = (unsigned char *)ibuf->rect;
		format = GL_RGBA;
		type = GL_UNSIGNED_BYTE;
	}
	else {
		bool force_fallback = false;

		force_fallback |= (U.image_draw_method != IMAGE_DRAW_METHOD_GLSL);
		force_fallback |= (ibuf->dither != 0.0f);

		if (force_fallback) {
			/* Fallback to CPU based color space conversion */
			glsl_used = false;
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
			display_buffer = NULL;
		}
		else if (ibuf->rect_float) {
			display_buffer = ibuf->rect_float;

			if (ibuf->channels == 4) {
				format = GL_RGBA;
			}
			else if (ibuf->channels == 3) {
				format = GL_RGB;
			}
			else {
				BLI_assert(!"Incompatible number of channels for float buffer in sequencer");
				format = GL_RGBA;
				display_buffer = NULL;
			}

			type = GL_FLOAT;

			if (ibuf->float_colorspace) {
				glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(C, ibuf->float_colorspace, ibuf->dither, true);
			}
			else {
				glsl_used = IMB_colormanagement_setup_glsl_draw_ctx(C, ibuf->dither, true);
			}
		}
		else if (ibuf->rect) {
			display_buffer = ibuf->rect;
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;

			glsl_used = IMB_colormanagement_setup_glsl_draw_from_space_ctx(C, ibuf->rect_colorspace, ibuf->dither, false);
		}
		else {
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
			display_buffer = NULL;
		}

		/* there's a data to be displayed, but GLSL is not initialized
		 * properly, in this case we fallback to CPU-based display transform
		 */
		if ((ibuf->rect || ibuf->rect_float) && !glsl_used) {
			display_buffer = IMB_display_buffer_acquire_ctx(C, ibuf, &cache_handle);
			format = GL_RGBA;
			type = GL_UNSIGNED_BYTE;
		}
	}

	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glColor4f(1.0, 1.0, 1.0, 1.0);

	last_texid = glaGetOneInteger(GL_TEXTURE_2D);
	glEnable(GL_TEXTURE_2D);
	glGenTextures(1, (GLuint *)&texid);

	glBindTexture(GL_TEXTURE_2D, texid);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

	if (type == GL_FLOAT)
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, ibuf->x, ibuf->y, 0, format, type, display_buffer);
	else
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, ibuf->x, ibuf->y, 0, format, type, display_buffer);

	if (draw_backdrop) {
		glMatrixMode(GL_PROJECTION);
		glPushMatrix();
		glLoadIdentity();
		glMatrixMode(GL_MODELVIEW);
		glPushMatrix();
		glLoadIdentity();
	}
	glBegin(GL_QUADS);

	if (draw_overlay) {
		if (sseq->overlay_type == SEQ_DRAW_OVERLAY_RECT) {
			rctf tot_clip;
			tot_clip.xmin = v2d->tot.xmin + (fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->over_border.xmin);
			tot_clip.ymin = v2d->tot.ymin + (fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->over_border.ymin);
			tot_clip.xmax = v2d->tot.xmin + (fabsf(BLI_rctf_size_x(&v2d->tot)) * scene->ed->over_border.xmax);
			tot_clip.ymax = v2d->tot.ymin + (fabsf(BLI_rctf_size_y(&v2d->tot)) * scene->ed->over_border.ymax);

			glTexCoord2f(scene->ed->over_border.xmin, scene->ed->over_border.ymin); glVertex2f(tot_clip.xmin, tot_clip.ymin);
			glTexCoord2f(scene->ed->over_border.xmin, scene->ed->over_border.ymax); glVertex2f(tot_clip.xmin, tot_clip.ymax);
			glTexCoord2f(scene->ed->over_border.xmax, scene->ed->over_border.ymax); glVertex2f(tot_clip.xmax, tot_clip.ymax);
			glTexCoord2f(scene->ed->over_border.xmax, scene->ed->over_border.ymin); glVertex2f(tot_clip.xmax, tot_clip.ymin);
		}
		else if (sseq->overlay_type == SEQ_DRAW_OVERLAY_REFERENCE) {
			glTexCoord2f(0.0f, 0.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymin);
			glTexCoord2f(0.0f, 1.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymax);
			glTexCoord2f(1.0f, 1.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymax);
			glTexCoord2f(1.0f, 0.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymin);
		}
	}
	else if (draw_backdrop) {
		float aspect;
		float image_aspect = viewrect[0] / viewrect[1];
		float imagex, imagey;

		aspect = BLI_rcti_size_x(&ar->winrct) / (float)BLI_rcti_size_y(&ar->winrct);

		if (aspect >= image_aspect) {
			imagex = image_aspect / aspect;
			imagey = 1.0f;
		}
		else {
			imagex = 1.0f;
			imagey = aspect / image_aspect;
		}

		glTexCoord2f(0.0f, 0.0f); glVertex2f(-imagex, -imagey);
		glTexCoord2f(0.0f, 1.0f); glVertex2f(-imagex, imagey);
		glTexCoord2f(1.0f, 1.0f); glVertex2f(imagex, imagey);
		glTexCoord2f(1.0f, 0.0f); glVertex2f(imagex, -imagey);
	}
	else {
		draw_metadata = ((sseq->flag & SEQ_SHOW_METADATA) != 0);

		glTexCoord2f(0.0f, 0.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymin);
		glTexCoord2f(0.0f, 1.0f); glVertex2f(v2d->tot.xmin, v2d->tot.ymax);
		glTexCoord2f(1.0f, 1.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymax);
		glTexCoord2f(1.0f, 0.0f); glVertex2f(v2d->tot.xmax, v2d->tot.ymin);
	}
	glEnd();

	glBindTexture(GL_TEXTURE_2D, last_texid);
	glDisable(GL_TEXTURE_2D);
	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF && sseq->flag & SEQ_USE_ALPHA)
		glDisable(GL_BLEND);
	glDeleteTextures(1, &texid);

	if (glsl_used)
		IMB_colormanagement_finish_glsl_draw();

	if (cache_handle)
		IMB_display_buffer_release(cache_handle);

	if (!scope)
		IMB_freeImBuf(ibuf);

	if (draw_metadata) {
		ED_region_image_metadata_draw(0.0, 0.0, ibuf, &v2d->tot, 1.0, 1.0);
	}

	if (draw_backdrop) {
		glPopMatrix();
		glMatrixMode(GL_PROJECTION);
		glPopMatrix();
		glMatrixMode(GL_MODELVIEW);
		return;
	}

	if (sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
		sequencer_draw_borders(sseq, v2d, scene);
	}

	if (draw_gpencil && is_imbuf) {
		sequencer_draw_gpencil(C);
	}
	else {
		/* ortho at pixel level */
		UI_view2d_view_restore(C);
	}


	/* NOTE: sequencer mask editing isnt finished, the draw code is working but editing not,
	 * for now just disable drawing since the strip frame will likely be offset */

	//if (sc->mode == SC_MODE_MASKEDIT) {
	if (0 && sseq->mainb == SEQ_DRAW_IMG_IMBUF) {
		Mask *mask = BKE_sequencer_mask_get(scene);

		if (mask) {
			int width, height;
			float aspx = 1.0f, aspy = 1.0f;
			// ED_mask_get_size(C, &width, &height);

			//Scene *scene = CTX_data_scene(C);
			width = (scene->r.size * scene->r.xsch) / 100;
			height = (scene->r.size * scene->r.ysch) / 100;

			ED_mask_draw_region(mask, ar,
			                    0, 0, 0,  /* TODO */
			                    width, height,
			                    aspx, aspy,
			                    false, true,
			                    NULL, C);
		}
	}
}
Exemple #8
0
/* if view_settings, it also applies this to byte buffers */
void scopes_update(Scopes *scopes, ImBuf *ibuf, const ColorManagedViewSettings *view_settings,
                   const ColorManagedDisplaySettings *display_settings)
{
	int x, y, c;
	unsigned int nl, na, nr, ng, nb;
	double divl, diva, divr, divg, divb;
	float *rf = NULL;
	unsigned char *rc = NULL;
	unsigned int *bin_lum, *bin_r, *bin_g, *bin_b, *bin_a;
	int savedlines, saveline;
	float rgba[4], ycc[3], luma;
	int ycc_mode = -1;
	const short is_float = (ibuf->rect_float != NULL);
	void *cache_handle = NULL;
	struct ColormanageProcessor *cm_processor = NULL;

	if (ibuf->rect == NULL && ibuf->rect_float == NULL) return;

	if (scopes->ok == 1) return;

	if (scopes->hist.ymax == 0.f) scopes->hist.ymax = 1.f;

	/* hmmmm */
	if (!(ELEM(ibuf->channels, 3, 4))) return;

	scopes->hist.channels = 3;
	scopes->hist.x_resolution = 256;

	switch (scopes->wavefrm_mode) {
		case SCOPES_WAVEFRM_RGB:
			ycc_mode = -1;
			break;
		case SCOPES_WAVEFRM_LUMA:
		case SCOPES_WAVEFRM_YCC_JPEG:
			ycc_mode = BLI_YCC_JFIF_0_255;
			break;
		case SCOPES_WAVEFRM_YCC_601:
			ycc_mode = BLI_YCC_ITU_BT601;
			break;
		case SCOPES_WAVEFRM_YCC_709:
			ycc_mode = BLI_YCC_ITU_BT709;
			break;
	}

	/* temp table to count pix value for histogram */
	bin_r     = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins");
	bin_g     = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins");
	bin_b     = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins");
	bin_a = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins");
	bin_lum   = MEM_callocN(256 * sizeof(unsigned int), "temp historgram bins");

	/* convert to number of lines with logarithmic scale */
	scopes->sample_lines = (scopes->accuracy * 0.01f) * (scopes->accuracy * 0.01f) * ibuf->y;
	
	if (scopes->sample_full)
		scopes->sample_lines = ibuf->y;

	/* scan the image */
	savedlines = 0;
	for (c = 0; c < 3; c++) {
		scopes->minmax[c][0] = 25500.0f;
		scopes->minmax[c][1] = -25500.0f;
	}
	
	scopes->waveform_tot = ibuf->x * scopes->sample_lines;
	
	if (scopes->waveform_1)
		MEM_freeN(scopes->waveform_1);
	if (scopes->waveform_2)
		MEM_freeN(scopes->waveform_2);
	if (scopes->waveform_3)
		MEM_freeN(scopes->waveform_3);
	if (scopes->vecscope)
		MEM_freeN(scopes->vecscope);
	
	scopes->waveform_1 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 1");
	scopes->waveform_2 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 2");
	scopes->waveform_3 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 3");
	scopes->vecscope = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "vectorscope point channel");
	
	if (is_float)
		rf = ibuf->rect_float;
	else {
		rc = (unsigned char *)IMB_display_buffer_acquire(ibuf, view_settings, display_settings, &cache_handle);
	}
	
	if (ibuf->rect_float)
		cm_processor = IMB_colormanagement_display_processor_new(view_settings, display_settings);

	for (y = 0; y < ibuf->y; y++) {
		if (savedlines < scopes->sample_lines && y >= ((savedlines) * ibuf->y) / (scopes->sample_lines + 1)) {
			saveline = 1;
		}
		else {
			saveline = 0;
		}
		for (x = 0; x < ibuf->x; x++) {

			if (is_float) {
				copy_v4_v4(rgba, rf);
				IMB_colormanagement_processor_apply_v4(cm_processor, rgba);
			}
			else {
				for (c = 0; c < 4; c++)
					rgba[c] = rc[c] * INV_255;
			}

			/* we still need luma for histogram */
			luma = rgb_to_luma(rgba);

			/* check for min max */
			if (ycc_mode == -1) {
				for (c = 0; c < 3; c++) {
					if (rgba[c] < scopes->minmax[c][0]) scopes->minmax[c][0] = rgba[c];
					if (rgba[c] > scopes->minmax[c][1]) scopes->minmax[c][1] = rgba[c];
				}
			}
			else {
				rgb_to_ycc(rgba[0], rgba[1], rgba[2], &ycc[0], &ycc[1], &ycc[2], ycc_mode);
				for (c = 0; c < 3; c++) {
					ycc[c] *= INV_255;
					if (ycc[c] < scopes->minmax[c][0]) scopes->minmax[c][0] = ycc[c];
					if (ycc[c] > scopes->minmax[c][1]) scopes->minmax[c][1] = ycc[c];
				}
			}
			/* increment count for histo*/
			bin_lum[get_bin_float(luma)] += 1;
			bin_r[get_bin_float(rgba[0])] += 1;
			bin_g[get_bin_float(rgba[1])] += 1;
			bin_b[get_bin_float(rgba[2])] += 1;
			bin_a[get_bin_float(rgba[3])] += 1;

			/* save sample if needed */
			if (saveline) {
				const float fx = (float)x / (float)ibuf->x;
				const int idx = 2 * (ibuf->x * savedlines + x);
				save_sample_line(scopes, idx, fx, rgba, ycc);
			}

			rf += ibuf->channels;
			rc += ibuf->channels;
		}
		if (saveline)
			savedlines += 1;
	}

	/* test for nicer distribution even - non standard, leave it out for a while */
#if 0
	for (x = 0; x < 256; x++) {
		bin_lum[x] = sqrt (bin_lum[x]);
		bin_r[x] = sqrt(bin_r[x]);
		bin_g[x] = sqrt(bin_g[x]);
		bin_b[x] = sqrt(bin_b[x]);
		bin_a[x] = sqrt(bin_a[x]);
	}
#endif
	
	/* convert hist data to float (proportional to max count) */
	nl = na = nr = nb = ng = 0;
	for (x = 0; x < 256; x++) {
		if (bin_lum[x] > nl) nl = bin_lum[x];
		if (bin_r[x]   > nr) nr = bin_r[x];
		if (bin_g[x]   > ng) ng = bin_g[x];
		if (bin_b[x]   > nb) nb = bin_b[x];
		if (bin_a[x]   > na) na = bin_a[x];
	}
	divl = nl ? 1.0 / (double)nl : 1.0;
	diva = na ? 1.0 / (double)na : 1.0;
	divr = nr ? 1.0 / (double)nr : 1.0;
	divg = ng ? 1.0 / (double)ng : 1.0;
	divb = nb ? 1.0 / (double)nb : 1.0;
	
	for (x = 0; x < 256; x++) {
		scopes->hist.data_luma[x] = bin_lum[x] * divl;
		scopes->hist.data_r[x] = bin_r[x] * divr;
		scopes->hist.data_g[x] = bin_g[x] * divg;
		scopes->hist.data_b[x] = bin_b[x] * divb;
		scopes->hist.data_a[x] = bin_a[x] * diva;
	}
	MEM_freeN(bin_lum);
	MEM_freeN(bin_r);
	MEM_freeN(bin_g);
	MEM_freeN(bin_b);
	MEM_freeN(bin_a);

	if (cm_processor)
		IMB_colormanagement_processor_free(cm_processor);
	if (cache_handle)
		IMB_display_buffer_release(cache_handle);
	
	scopes->ok = 1;
}
void scopes_update(Scopes *scopes, ImBuf *ibuf, const ColorManagedViewSettings *view_settings,
                   const ColorManagedDisplaySettings *display_settings)
{
	int a;
	unsigned int nl, na, nr, ng, nb;
	double divl, diva, divr, divg, divb;
	const unsigned char *display_buffer = NULL;
	unsigned int bin_lum[256] = {0},
	             bin_r[256] = {0},
	             bin_g[256] = {0},
	             bin_b[256] = {0},
	             bin_a[256] = {0};
	int ycc_mode = -1;
	void *cache_handle = NULL;
	struct ColormanageProcessor *cm_processor = NULL;

	if (ibuf->rect == NULL && ibuf->rect_float == NULL) return;

	if (scopes->ok == 1) return;

	if (scopes->hist.ymax == 0.f) scopes->hist.ymax = 1.f;

	/* hmmmm */
	if (!(ELEM(ibuf->channels, 3, 4))) return;

	scopes->hist.channels = 3;
	scopes->hist.x_resolution = 256;

	switch (scopes->wavefrm_mode) {
		case SCOPES_WAVEFRM_RGB:
			ycc_mode = -1;
			break;
		case SCOPES_WAVEFRM_LUMA:
		case SCOPES_WAVEFRM_YCC_JPEG:
			ycc_mode = BLI_YCC_JFIF_0_255;
			break;
		case SCOPES_WAVEFRM_YCC_601:
			ycc_mode = BLI_YCC_ITU_BT601;
			break;
		case SCOPES_WAVEFRM_YCC_709:
			ycc_mode = BLI_YCC_ITU_BT709;
			break;
	}

	/* convert to number of lines with logarithmic scale */
	scopes->sample_lines = (scopes->accuracy * 0.01f) * (scopes->accuracy * 0.01f) * ibuf->y;
	CLAMP_MIN(scopes->sample_lines, 1);
	
	if (scopes->sample_full)
		scopes->sample_lines = ibuf->y;

	/* scan the image */
	for (a = 0; a < 3; a++) {
		scopes->minmax[a][0] = 25500.0f;
		scopes->minmax[a][1] = -25500.0f;
	}
	
	scopes->waveform_tot = ibuf->x * scopes->sample_lines;
	
	if (scopes->waveform_1)
		MEM_freeN(scopes->waveform_1);
	if (scopes->waveform_2)
		MEM_freeN(scopes->waveform_2);
	if (scopes->waveform_3)
		MEM_freeN(scopes->waveform_3);
	if (scopes->vecscope)
		MEM_freeN(scopes->vecscope);
	
	scopes->waveform_1 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 1");
	scopes->waveform_2 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 2");
	scopes->waveform_3 = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "waveform point channel 3");
	scopes->vecscope = MEM_callocN(scopes->waveform_tot * 2 * sizeof(float), "vectorscope point channel");
	
	if (ibuf->rect_float) {
		cm_processor = IMB_colormanagement_display_processor_new(view_settings, display_settings);
	}
	else {
		display_buffer = (const unsigned char *)IMB_display_buffer_acquire(
		                                            ibuf, view_settings, display_settings, &cache_handle);
	}

	/* Keep number of threads in sync with the merge parts below. */
	ScopesUpdateData data = {
		.scopes = scopes, . ibuf = ibuf,
		.cm_processor = cm_processor, .display_buffer = display_buffer, .ycc_mode = ycc_mode,
		.bin_lum = bin_lum, .bin_r = bin_r, .bin_g = bin_g, .bin_b = bin_b, .bin_a = bin_a,
	};
	ScopesUpdateDataChunk data_chunk = {0};
	INIT_MINMAX(data_chunk.min, data_chunk.max);

	BLI_task_parallel_range_finalize(0, ibuf->y, &data, &data_chunk, sizeof(data_chunk),
	                                 scopes_update_cb, scopes_update_finalize, ibuf->y > 256, false);

	/* test for nicer distribution even - non standard, leave it out for a while */
#if 0
	for (a = 0; a < 256; a++) {
		bin_lum[a] = sqrt (bin_lum[a]);
		bin_r[a] = sqrt(bin_r[a]);
		bin_g[a] = sqrt(bin_g[a]);
		bin_b[a] = sqrt(bin_b[a]);
		bin_a[a] = sqrt(bin_a[a]);
	}
#endif
	
	/* convert hist data to float (proportional to max count) */
	nl = na = nr = nb = ng = 0;
	for (a = 0; a < 256; a++) {
		if (bin_lum[a] > nl) nl = bin_lum[a];
		if (bin_r[a]   > nr) nr = bin_r[a];
		if (bin_g[a]   > ng) ng = bin_g[a];
		if (bin_b[a]   > nb) nb = bin_b[a];
		if (bin_a[a]   > na) na = bin_a[a];
	}
	divl = nl ? 1.0 / (double)nl : 1.0;
	diva = na ? 1.0 / (double)na : 1.0;
	divr = nr ? 1.0 / (double)nr : 1.0;
	divg = ng ? 1.0 / (double)ng : 1.0;
	divb = nb ? 1.0 / (double)nb : 1.0;
	
	for (a = 0; a < 256; a++) {
		scopes->hist.data_luma[a] = bin_lum[a] * divl;
		scopes->hist.data_r[a] = bin_r[a] * divr;
		scopes->hist.data_g[a] = bin_g[a] * divg;
		scopes->hist.data_b[a] = bin_b[a] * divb;
		scopes->hist.data_a[a] = bin_a[a] * diva;
	}

	if (cm_processor)
		IMB_colormanagement_processor_free(cm_processor);
	if (cache_handle)
		IMB_display_buffer_release(cache_handle);
	
	scopes->ok = 1;
}
Exemple #10
0
/* Draw given image buffer on a screen using GLSL for display transform */
void glaDrawImBuf_glsl(ImBuf *ibuf, float x, float y, int zoomfilter,
                       ColorManagedViewSettings *view_settings,
                       ColorManagedDisplaySettings *display_settings)
{
	bool force_fallback = false;
	bool need_fallback = true;

	/* Early out */
	if (ibuf->rect == NULL && ibuf->rect_float == NULL)
		return;

	/* Single channel images could not be transformed using GLSL yet */
	force_fallback |= ibuf->channels == 1;

	/* If user decided not to use GLSL, fallback to glaDrawPixelsAuto */
	force_fallback |= (U.image_draw_method != IMAGE_DRAW_METHOD_GLSL);

	/* Try to draw buffer using GLSL display transform */
	if (force_fallback == false) {
		int ok;

		if (ibuf->rect_float) {
			if (ibuf->float_colorspace) {
				ok = IMB_colormanagement_setup_glsl_draw_from_space(view_settings, display_settings,
				                                                    ibuf->float_colorspace,
				                                                    ibuf->dither, true);
			}
			else {
				ok = IMB_colormanagement_setup_glsl_draw(view_settings, display_settings,
				                                         ibuf->dither, true);
			}
		}
		else {
			ok = IMB_colormanagement_setup_glsl_draw_from_space(view_settings, display_settings,
			                                                    ibuf->rect_colorspace,
			                                                    ibuf->dither, false);
		}

		if (ok) {
			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
			glColor4f(1.0, 1.0, 1.0, 1.0);

			if (ibuf->rect_float) {
				int format = 0;

				if (ibuf->channels == 3)
					format = GL_RGB;
				else if (ibuf->channels == 4)
					format = GL_RGBA;
				else
					BLI_assert(!"Incompatible number of channels for GLSL display");

				if (format != 0) {
					glaDrawPixelsTex(x, y, ibuf->x, ibuf->y, format, GL_FLOAT,
					                 zoomfilter, ibuf->rect_float);
				}
			}
			else if (ibuf->rect) {
				/* ibuf->rect is always RGBA */
				glaDrawPixelsTex(x, y, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE,
				                 zoomfilter, ibuf->rect);
			}

			IMB_colormanagement_finish_glsl_draw();

			need_fallback = false;
		}
	}

	/* In case GLSL failed or not usable, fallback to glaDrawPixelsAuto */
	if (need_fallback) {
		unsigned char *display_buffer;
		void *cache_handle;

		display_buffer = IMB_display_buffer_acquire(ibuf, view_settings, display_settings, &cache_handle);

		if (display_buffer)
			glaDrawPixelsAuto(x, y, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE,
			                  zoomfilter, display_buffer);

		IMB_display_buffer_release(cache_handle);
	}
}