[Bf-blender-cvs] [4f9b58c] temp_display_optimization: VBO offscreen selection drawing, cdderivedmesh

Antony Riakiotakis noreply at git.blender.org
Tue Jul 14 22:37:50 CEST 2015


Commit: 4f9b58cb71393c6390c31af0d85f045fdfce48df
Author: Antony Riakiotakis
Date:   Tue Jul 14 22:36:34 2015 +0200
Branches: temp_display_optimization
https://developer.blender.org/rB4f9b58cb71393c6390c31af0d85f045fdfce48df

VBO offscreen selection drawing, cdderivedmesh

Get rid of legacy drawing, it's only used for selection,
in which case we can prepare a temporary color buffer and draw
at once. Code is not complete here because we still redundantly
set the draw color in the draw function and don't ommit hidden
faces automatically. Still it works 100% without immediate mode
now.

===================================================================

M	source/blender/blenkernel/BKE_DerivedMesh.h
M	source/blender/blenkernel/intern/cdderivedmesh.c
M	source/blender/editors/space_view3d/drawobject.c
M	source/blender/gpu/GPU_buffers.h
M	source/blender/gpu/intern/gpu_buffers.c
M	source/blender/windowmanager/WM_api.h
M	source/blender/windowmanager/intern/wm_subwindow.c
M	source/blenderplayer/bad_level_call_stubs/stubs.c

===================================================================

diff --git a/source/blender/blenkernel/BKE_DerivedMesh.h b/source/blender/blenkernel/BKE_DerivedMesh.h
index 881b233..e402bf8 100644
--- a/source/blender/blenkernel/BKE_DerivedMesh.h
+++ b/source/blender/blenkernel/BKE_DerivedMesh.h
@@ -149,6 +149,7 @@ typedef enum DMDrawFlag {
 	DM_DRAW_ALWAYS_SMOOTH       = (1 << 1),
 	DM_DRAW_USE_ACTIVE_UV       = (1 << 2),
 	DM_DRAW_USE_TEXPAINT_UV     = (1 << 3),
+	DM_DRAW_SKIP_HIDDEN         = (1 << 4),
 } DMDrawFlag;
 
 typedef enum DMForeachFlag {
diff --git a/source/blender/blenkernel/intern/cdderivedmesh.c b/source/blender/blenkernel/intern/cdderivedmesh.c
index 4752332..1acf9bf 100644
--- a/source/blender/blenkernel/intern/cdderivedmesh.c
+++ b/source/blender/blenkernel/intern/cdderivedmesh.c
@@ -60,6 +60,8 @@
 #include "GPU_extensions.h"
 #include "GPU_glew.h"
 
+#include "WM_api.h"
+
 #include <string.h>
 #include <limits.h>
 #include <math.h>
@@ -625,14 +627,15 @@ static void cdDM_drawMappedFaces(DerivedMesh *dm,
                                  void *userData, DMDrawFlag flag)
 {
 	CDDerivedMesh *cddm = (CDDerivedMesh *) dm;
-	MVert *mv = cddm->mvert;
 	MFace *mf = cddm->mface;
 	MCol *mcol;
-	const float *nors = DM_get_tessface_data_layer(dm, CD_NORMAL);
-	const short (*lnors)[4][3] = dm->getTessFaceDataArray(dm, CD_TESSLOOPNORMAL);
-	int colType, useColors = flag & DM_DRAW_USE_COLORS;
+	int colType, useColors = flag & DM_DRAW_USE_COLORS, useHide = flag & DM_DRAW_SKIP_HIDDEN;
 	int i, orig;
-
+	int start_element = 0, tot_element;
+	int totpoly;
+	int tottri;
+	int mat_index;
+	GPUBuffer *findex_buffer = NULL;
 
 	/* double lookup */
 	const int *index_mf_to_mpoly = dm->getTessFaceDataArray(dm, CD_ORIGINDEX);
@@ -641,211 +644,146 @@ static void cdDM_drawMappedFaces(DerivedMesh *dm,
 		index_mp_to_orig = NULL;
 	}
 
-	colType = CD_TEXTURE_MCOL;
-	mcol = DM_get_tessface_data_layer(dm, colType);
-	if (!mcol) {
-		colType = CD_PREVIEW_MCOL;
-		mcol = DM_get_tessface_data_layer(dm, colType);
-	}
-	if (!mcol) {
-		colType = CD_MCOL;
-		mcol = DM_get_tessface_data_layer(dm, colType);
-	}
-
 	cdDM_update_normals_from_pbvh(dm);
 
-	/* back-buffer always uses legacy since VBO's would need the
-	 * color array temporarily overwritten for drawing, then reset. */
+	/* fist, setup common buffers */
+	GPU_vertex_setup(dm);
+	GPU_triangle_setup(dm);
+
+	/* if we do selection, fill the selection buffer color */
 	if (G.f & G_BACKBUFSEL) {
-		DEBUG_VBO("Using legacy code. cdDM_drawMappedFaces\n");
-		for (i = 0; i < dm->numTessFaceData; i++, mf++) {
-			int drawSmooth = ((flag & DM_DRAW_ALWAYS_SMOOTH) || lnors) ? 1 : (mf->flag & ME_SMOOTH);
-			DMDrawOption draw_option = DM_DRAW_OPTION_NORMAL;
+		Mesh *me = userData;
+		unsigned int *fi_map;
 
-			orig = (index_mf_to_mpoly) ? DM_origindex_mface_mpoly(index_mf_to_mpoly, index_mp_to_orig, i) : i;
-			
-			if (orig == ORIGINDEX_NONE)
-				draw_option = setMaterial(mf->mat_nr + 1, NULL);
-			else if (setDrawOptions != NULL)
-				draw_option = setDrawOptions(userData, orig);
+		findex_buffer = GPU_buffer_alloc(dm->drawObject->tot_loop_verts * sizeof(int), false);
+		fi_map = GPU_buffer_lock(findex_buffer);
 
-			if (draw_option != DM_DRAW_OPTION_SKIP) {
-				unsigned char *cp = NULL;
+		if (fi_map) {
+			for (i = 0; i < dm->numTessFaceData; i++, mf++) {
+				int selcol = 0xFFFFFFFF;
+				orig = (index_mf_to_mpoly) ? DM_origindex_mface_mpoly(index_mf_to_mpoly, index_mp_to_orig, i) : i;
 
-				if (draw_option == DM_DRAW_OPTION_STIPPLE) {
-					glEnable(GL_POLYGON_STIPPLE);
-					glPolygonStipple(stipple_quarttone);
+				if ((orig != ORIGINDEX_NONE) && (!useHide || !(me->mpoly[orig].flag & ME_HIDE))) {
+					WM_framebuffer_index_get(orig + 1, &selcol);
 				}
 
-				if (useColors && mcol)
-					cp = (unsigned char *)&mcol[i * 4];
-
-				/* no need to set shading mode to flat because
-				 *  normals are already used to change shading */
-				glShadeModel(GL_SMOOTH);
-				glBegin(mf->v4 ? GL_QUADS : GL_TRIANGLES);
-
-				if (lnors) {
-					if (cp) glColor3ub(cp[3], cp[2], cp[1]);
-					glNormal3sv((const GLshort *)lnors[0][0]);
-					glVertex3fv(mv[mf->v1].co);
-					if (cp) glColor3ub(cp[7], cp[6], cp[5]);
-					glNormal3sv((const GLshort *)lnors[0][1]);
-					glVertex3fv(mv[mf->v2].co);
-					if (cp) glColor3ub(cp[11], cp[10], cp[9]);
-					glNormal3sv((const GLshort *)lnors[0][2]);
-					glVertex3fv(mv[mf->v3].co);
-					if (mf->v4) {
-						if (cp) glColor3ub(cp[15], cp[14], cp[13]);
-						glNormal3sv((const GLshort *)lnors[0][3]);
-						glVertex3fv(mv[mf->v4].co);
-					}
-				}
-				else if (!drawSmooth) {
-					if (nors) {
-						glNormal3fv(nors);
-					}
-					else {
-						float nor[3];
-						if (mf->v4) {
-							normal_quad_v3(nor, mv[mf->v1].co, mv[mf->v2].co, mv[mf->v3].co, mv[mf->v4].co);
-						}
-						else {
-							normal_tri_v3(nor, mv[mf->v1].co, mv[mf->v2].co, mv[mf->v3].co);
-						}
-						glNormal3fv(nor);
-					}
+				fi_map[start_element++] = selcol;
+				fi_map[start_element++] = selcol;
+				fi_map[start_element++] = selcol;
 
-					if (cp) glColor3ub(cp[3], cp[2], cp[1]);
-					glVertex3fv(mv[mf->v1].co);
-					if (cp) glColor3ub(cp[7], cp[6], cp[5]);
-					glVertex3fv(mv[mf->v2].co);
-					if (cp) glColor3ub(cp[11], cp[10], cp[9]);
-					glVertex3fv(mv[mf->v3].co);
-					if (mf->v4) {
-						if (cp) glColor3ub(cp[15], cp[14], cp[13]);
-						glVertex3fv(mv[mf->v4].co);
-					}
-				}
-				else {
-					if (cp) glColor3ub(cp[3], cp[2], cp[1]);
-					glNormal3sv(mv[mf->v1].no);
-					glVertex3fv(mv[mf->v1].co);
-					if (cp) glColor3ub(cp[7], cp[6], cp[5]);
-					glNormal3sv(mv[mf->v2].no);
-					glVertex3fv(mv[mf->v2].co);
-					if (cp) glColor3ub(cp[11], cp[10], cp[9]);
-					glNormal3sv(mv[mf->v3].no);
-					glVertex3fv(mv[mf->v3].co);
-					if (mf->v4) {
-						if (cp) glColor3ub(cp[15], cp[14], cp[13]);
-						glNormal3sv(mv[mf->v4].no);
-						glVertex3fv(mv[mf->v4].co);
-					}
+				if (mf->v4) {
+					fi_map[start_element++] = selcol;
 				}
+			}
 
-				glEnd();
+			start_element = 0;
+			mf = cddm->mface;
 
-				if (draw_option == DM_DRAW_OPTION_STIPPLE)
-					glDisable(GL_POLYGON_STIPPLE);
-			}
-			
-			if (nors)
-				nors += 3;
-			if (lnors)
-				lnors++;
+			GPU_buffer_unlock(findex_buffer);
+			GPU_buffer_bind_as_color(findex_buffer);
 		}
 	}
-	else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
-		int start_element = 0, tot_element;
-		int totpoly;
-		int tottri;
-		int mat_index;
-		
-		GPU_vertex_setup(dm);
+	else {
 		GPU_normal_setup(dm);
-		GPU_triangle_setup(dm);
-		if (useColors && mcol) {
-			GPU_color_setup(dm, colType);
+
+		if (useColors) {
+			colType = CD_TEXTURE_MCOL;
+			mcol = DM_get_tessface_data_layer(dm, colType);
+			if (!mcol) {
+				colType = CD_PREVIEW_MCOL;
+				mcol = DM_get_tessface_data_layer(dm, colType);
+			}
+			if (!mcol) {
+				colType = CD_MCOL;
+				mcol = DM_get_tessface_data_layer(dm, colType);
+			}
+
+			if (useColors && mcol) {
+				GPU_color_setup(dm, colType);
+			}
 		}
-		glShadeModel(GL_SMOOTH);
+	}
 		
-		tottri = dm->drawObject->tot_triangle_point / 3;
+	glShadeModel(GL_SMOOTH);
 
-		if (tottri == 0) {
-			/* avoid buffer problems in following code */
-		}
-		else if (setDrawOptions == NULL) {
-			/* just draw the entire face array */
-			GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES, 0, 3 * tottri);
-		}
-		else {			
-			for (mat_index = 0; mat_index < dm->drawObject->totmaterial; mat_index++) {
-				GPUBufferMaterial *bufmat = dm->drawObject->materials + mat_index;
-				DMDrawOption draw_option = DM_DRAW_OPTION_NORMAL;
-				int next_actualFace = bufmat->polys[0];
-				totpoly = bufmat->totpolys;
+	tottri = dm->drawObject->tot_triangle_point / 3;
 
-				tot_element = 0;
-				start_element = bufmat->start;
+	if (tottri == 0) {
+		/* avoid buffer problems in following code */
+	}
+	else if (setDrawOptions == NULL) {
+		/* just draw the entire face array */
+		GPU_buffer_draw_elements(dm->drawObject->triangles, GL_TRIANGLES, 0, 3 * tottri);
+	}
+	else {
+		for (mat_index = 0; mat_index < dm->drawObject->totmaterial; mat_index++) {
+			GPUBufferMaterial *bufmat = dm->drawObject->materials + mat_index;
+			DMDrawOption draw_option = DM_DRAW_OPTION_NORMAL;
+			int next_actualFace = bufmat->polys[0];
+			totpoly = bufmat->totpolys;
 
-				if (setMaterial)
-					draw_option = setMaterial(bufmat->mat_nr + 1, NULL);
+			tot_element = 0;
+			start_element = bufmat->start;
 
-				if (draw_option != DM_DRAW_OPTION_SKIP) {
-					for (i = 0; i < totpoly; i++) {
-						//int actualFace = dm->drawObject->triangle_to_mface[i];
-						int actualFace = next_actualFace;
-						int flush = 0;
-						draw_option = DM_DRAW_OPTION_NORMAL;
+			if (setMaterial)
+				draw_option = setMaterial(bufmat->mat_nr + 1, NULL);
 
-						if (i != totpoly - 1)
-							next_actualFace = bufmat->polys[i + 1];
+			if (draw_option != DM_DRAW_OPTION_SKIP) {
+				for (i = 0; i < totpoly; i++) {
+					int actualFace = next_actualFace;
+					int flush = 0;
+					draw_option = DM_DRAW_OPTION_NORMAL;
 
-						orig = (index_mf_to_mpoly) ? DM_origindex_mface_mpoly(index_mf_to_mpoly, index_mp_to_orig, actualFace) : actualFace;
+					if (i != totpoly - 1)
+						next_actualFace = bufmat->polys[i + 1];
 
-						if (setDrawOptions != NULL && (orig != ORIGINDEX_NONE))
-							draw_option = setDrawOptions(userData, orig);
+					orig = (index_mf_to_mpoly) ? DM_origindex_mface_mpoly(index_mf_to_mpoly, index_mp_to_orig, actualFace) : actualFace;
 
-						if (draw_option == DM_DRAW_OPTION_STIPPLE) {
-							glEnable(GL_POLYGON_STIPPLE);
-							glPolygonStipple(stipple_quarttone);
-						}
+					if (setDrawOptions != NULL && (orig != ORIGINDEX_NONE))
+						draw_option = setDrawOptions(userData, orig);
 
-						/* Goal is to draw as long of a contiguous triangle
+					if (draw_option == DM_DRAW_OPTION_STIPPLE) {
+						glEnable(GL_POLYGON_STIPPLE);
+						glPolygonStipple(stipple_quarttone);
+					}
+
+					/* Goal is to draw as long of a contiguous triangle
 					 * array as possible, so draw when we hit either an
 					 * invisible triangle or at the end of the array */
 
-						/* flush buffer if current triangle isn't drawable or it's last triangle... */
-						flush = (ELEM(draw_opt

@@ Diff output truncated at 10240 characters. @@




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