[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [20768] branches/soc-2009-imbusy/source/ blender/gpu: Now generates vertex, normal, texture and color VBOs and vertex arrays.
Lukas Steiblys
imbusy at imbusy.org
Tue Jun 9 20:57:39 CEST 2009
Revision: 20768
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=20768
Author: imbusy
Date: 2009-06-09 20:57:39 +0200 (Tue, 09 Jun 2009)
Log Message:
-----------
Now generates vertex, normal, texture and color VBOs and vertex arrays. Not yet tested.
Modified Paths:
--------------
branches/soc-2009-imbusy/source/blender/gpu/gpu_buffers.h
branches/soc-2009-imbusy/source/blender/gpu/intern/gpu_buffers.c
Modified: branches/soc-2009-imbusy/source/blender/gpu/gpu_buffers.h
===================================================================
--- branches/soc-2009-imbusy/source/blender/gpu/gpu_buffers.h 2009-06-09 18:50:02 UTC (rev 20767)
+++ branches/soc-2009-imbusy/source/blender/gpu/gpu_buffers.h 2009-06-09 18:57:39 UTC (rev 20768)
@@ -85,7 +85,7 @@
GPUBuffer *GPU_buffer_vertex( struct DerivedMesh *dm, GPUDrawObject *object );
GPUBuffer *GPU_buffer_normal( struct DerivedMesh *dm, GPUDrawObject *object );
+GPUBuffer *GPU_buffer_uv( struct DerivedMesh *dm, GPUDrawObject *object );
GPUBuffer *GPU_buffer_color( struct DerivedMesh *dm, GPUDrawObject *object );
-GPUBuffer *GPU_buffer_uv( struct DerivedMesh *dm, GPUDrawObject *object );
#endif
Modified: branches/soc-2009-imbusy/source/blender/gpu/intern/gpu_buffers.c
===================================================================
--- branches/soc-2009-imbusy/source/blender/gpu/intern/gpu_buffers.c 2009-06-09 18:50:02 UTC (rev 20767)
+++ branches/soc-2009-imbusy/source/blender/gpu/intern/gpu_buffers.c 2009-06-09 18:57:39 UTC (rev 20768)
@@ -37,7 +37,9 @@
#include "gpu_buffers.h"
#include "MEM_guardedalloc.h"
#include "BKE_DerivedMesh.h"
+#include "BKE_utildefines.h"
#include "DNA_meshdata_types.h"
+#include "BLI_arithb.h"
/* -1 - undefined, 0 - vertex arrays, 1 - VBOs */
int useVBOs = -1;
@@ -137,7 +139,9 @@
allocated = MEM_mallocN(sizeof(GPUBuffer), "GPU_buffer_alloc");
allocated->size = size;
if( useVBOs == 1 ) {
- glGenBuffersARB( 1, &allocated->id ); /* the actual size is specified later when copying data. Theoretically could be different */
+ glGenBuffersARB( 1, &allocated->id );
+ glBindBufferARB( GL_ARRAY_BUFFER_ARB, allocated->id );
+ glBufferDataARB( GL_ARRAY_BUFFER_ARB, size, 0, GL_STATIC_DRAW_ARB );
}
else {
allocated->pointer = MEM_mallocN(size, "GPU_buffer_alloc_vertexarray");
@@ -186,8 +190,7 @@
int i;
int curmat, curverts;
- object = MEM_mallocN(sizeof(GPUDrawObject),"GPU_drawobject_new");
- memset(object,0,sizeof(GPUDrawObject));
+ object = MEM_callocN(sizeof(GPUDrawObject),"GPU_drawobject_new");
memset(numverts,0,sizeof(int)*256);
@@ -240,65 +243,226 @@
MEM_freeN(object);
}
-GPUBuffer *GPU_buffer_vertex( DerivedMesh *dm, GPUDrawObject *object )
+GPUBuffer *GPU_buffer_setup( DerivedMesh *dm, GPUDrawObject *object, int size, void (*copy_f)(DerivedMesh *, float *, int *, int *) )
{
GPUBuffer *buffer;
- MVert *mvert;
- MFace *mface;
float *varray;
- int start;
int redir[256];
int *index;
int i;
+ GLboolean uploaded;
- index = MEM_mallocN(sizeof(int)*object->nmaterials,"GPU_buffer_vertex");
- for( i = 0; i < object->nmaterials; i++ )
- {
+ index = MEM_mallocN(sizeof(int)*object->nmaterials,"GPU_buffer_setup");
+ for( i = 0; i < object->nmaterials; i++ ) {
index[i] = object->materials[i].start;
redir[object->materials[i].mat_nr] = i;
}
- mvert = dm->getVertArray(dm);
- mface = dm->getFaceArray(dm);
- buffer = GPU_buffer_alloc(sizeof(float)*3*object->nelements,globalPool);
+ buffer = GPU_buffer_alloc(size,globalPool);
if( useVBOs ) {
- printf("GPU_buffer_vertex VBO not implemented yet");
+ glBindBufferARB( GL_ARRAY_BUFFER_ARB, buffer->id );
+ glBufferDataARB( GL_ARRAY_BUFFER_ARB, buffer->size, 0, GL_STATIC_DRAW_ARB ); /* discard previous data, avoid stalling gpu */
+ varray = glMapBufferARB( GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB );
+ if( varray == 0 )
+ printf( "Failed to map buffer to client address space" );
+
+ uploaded = GL_FALSE;
+ while( !uploaded ) {
+ (*copy_f)( dm, varray, index, redir );
+ uploaded = glUnmapBufferARB( GL_ARRAY_BUFFER_ARB ); /* returns false if data got corruped during transfer */
+ }
}
else {
varray = buffer->pointer;
- for( i=0; i < dm->getNumFaces(dm); i++ ) {
- start = index[redir[mface[i].mat_nr]];
+ (*copy_f)( dm, varray, index, redir );
+ }
+
+ MEM_freeN(index);
+
+ return buffer;
+}
+
+void GPU_buffer_copy_vertex( DerivedMesh *dm, float *varray, int *index, int *redir )
+{
+ int start;
+ int i;
+
+ MVert *mvert;
+ MFace *mface;
+
+ mvert = dm->getVertArray(dm);
+ mface = dm->getFaceArray(dm);
+
+ for( i=0; i < dm->getNumFaces(dm); i++ ) {
+ start = index[redir[mface[i].mat_nr]];
+ if( mface[i].v4 )
+ index[redir[mface[i].mat_nr]] += 18;
+ else
+ index[redir[mface[i].mat_nr]] += 9;
+
+ /* v1 v2 v3 */
+ VECCOPY(&varray[start],mvert[mface[i].v1].co);
+ VECCOPY(&varray[start+3],mvert[mface[i].v2].co);
+ VECCOPY(&varray[start+6],mvert[mface[i].v3].co);
+
+ if( mface[i].v4 ) {
+ /* v3 v4 v1 */
+ VECCOPY(&varray[start+9],mvert[mface[i].v3].co);
+ VECCOPY(&varray[start+12],mvert[mface[i].v4].co);
+ VECCOPY(&varray[start+15],mvert[mface[i].v1].co);
+ }
+ }
+}
+
+GPUBuffer *GPU_buffer_vertex( DerivedMesh *dm, GPUDrawObject *object )
+{
+ return GPU_buffer_setup( dm, object, sizeof(float)*3*object->nelements, GPU_buffer_copy_vertex);
+}
+
+void GPU_buffer_copy_normal( DerivedMesh *dm, float *varray, int *index, int *redir )
+{
+ int i;
+ int start;
+ float norm[3];
+
+ MVert *mvert;
+ MFace *mface;
+
+ mvert = dm->getVertArray(dm);
+ mface = dm->getFaceArray(dm);
+
+ for( i=0; i < dm->getNumFaces(dm); i++ ) {
+ start = index[redir[mface[i].mat_nr]];
+ if( mface[i].v4 )
+ index[redir[mface[i].mat_nr]] += 18;
+ else
+ index[redir[mface[i].mat_nr]] += 9;
+
+ /* v1 v2 v3 */
+ if( mface->flag & ME_SMOOTH ) {
+ VECCOPY(&varray[start],mvert[mface[i].v1].no);
+ VECCOPY(&varray[start+3],mvert[mface[i].v2].no);
+ VECCOPY(&varray[start+6],mvert[mface[i].v3].no);
+ }
+ else {
if( mface[i].v4 )
- index[redir[mface[i].mat_nr]] += 18;
+ CalcNormFloat4(mvert[mface[i].v1].co, mvert[mface[i].v2].co, mvert[mface[i].v3].co, mvert[mface[i].v4].co, norm);
else
- index[redir[mface[i].mat_nr]] += 9;
+ CalcNormFloat(mvert[mface[i].v1].co, mvert[mface[i].v2].co, mvert[mface[i].v3].co, norm);
+ VECCOPY(&varray[start],norm);
+ VECCOPY(&varray[start+3],norm);
+ VECCOPY(&varray[start+6],norm);
+ }
- varray[start] = mvert[mface[i].v1].co[0];
- varray[start+1] = mvert[mface[i].v1].co[1];
- varray[start+2] = mvert[mface[i].v1].co[2];
- varray[start+3] = mvert[mface[i].v2].co[0];
- varray[start+4] = mvert[mface[i].v2].co[1];
- varray[start+5] = mvert[mface[i].v2].co[2];
- varray[start+6] = mvert[mface[i].v3].co[0];
- varray[start+7] = mvert[mface[i].v3].co[1];
- varray[start+8] = mvert[mface[i].v3].co[2];
-
- if( mface[i].v4 ) {
- varray[start+9] = mvert[mface[i].v3].co[0];
- varray[start+10] = mvert[mface[i].v3].co[1];
- varray[start+11] = mvert[mface[i].v3].co[2];
- varray[start+12] = mvert[mface[i].v4].co[0];
- varray[start+13] = mvert[mface[i].v4].co[1];
- varray[start+14] = mvert[mface[i].v4].co[2];
- varray[start+15] = mvert[mface[i].v1].co[0];
- varray[start+16] = mvert[mface[i].v1].co[1];
- varray[start+17] = mvert[mface[i].v1].co[2];
+ if( mface[i].v4 ) {
+ /* v3 v4 v1 */
+ if( mface->flag & ME_SMOOTH ) {
+ VECCOPY(&varray[start],mvert[mface[i].v3].no);
+ VECCOPY(&varray[start+3],mvert[mface[i].v4].no);
+ VECCOPY(&varray[start+6],mvert[mface[i].v1].no);
}
+ else {
+ VECCOPY(&varray[start],norm);
+ VECCOPY(&varray[start+3],norm);
+ VECCOPY(&varray[start+6],norm);
+ }
}
}
+}
- MEM_freeN(index);
+GPUBuffer *GPU_buffer_normal( struct DerivedMesh *dm, GPUDrawObject *object )
+{
+ return GPU_buffer_setup( dm, object, sizeof(float)*3*object->nelements, GPU_buffer_copy_normal);
+}
- return buffer;
-}
\ No newline at end of file
+void GPU_buffer_copy_uv( DerivedMesh *dm, float *varray, int *index, int *redir )
+{
+ int start;
+ int i;
+
+ MTFace *mtface;
+ MFace *mface;
+
+ mface = dm->getFaceArray(dm);
+ mtface = DM_get_face_data_layer(dm, CD_MTFACE);
+
+ for( i=0; i < dm->getNumFaces(dm); i++ ) {
+ start = index[redir[mface[i].mat_nr]];
+ if( mface[i].v4 )
+ index[redir[mface[i].mat_nr]] += 12;
+ else
+ index[redir[mface[i].mat_nr]] += 6;
+
+ /* v1 v2 v3 */
+ VECCOPY2D(&varray[start],mtface[i].uv[0]);
+ VECCOPY2D(&varray[start+2],mtface[i].uv[1]);
+ VECCOPY2D(&varray[start+4],mtface[i].uv[2]);
+
+ if( mface[i].v4 ) {
+ /* v3 v4 v1 */
+ VECCOPY2D(&varray[start+6],mtface[i].uv[2]);
+ VECCOPY2D(&varray[start+8],mtface[i].uv[3]);
+ VECCOPY2D(&varray[start+10],mtface[i].uv[0]);
+ }
+ }
+}
+
+GPUBuffer *GPU_buffer_uv( struct DerivedMesh *dm, GPUDrawObject *object )
+{
+ return GPU_buffer_setup( dm, object, sizeof(float)*2*object->nelements, GPU_buffer_copy_uv);
+}
+
+void GPU_buffer_copy_color( DerivedMesh *dm, float *varray_, int *index, int *redir )
+{
+ int start;
+ int i;
+
+ char *varray;
+ MFace *mface;
+ MCol *mcol;
+
+ varray = (char *)varray_;
+
+ mface = dm->getFaceArray(dm);
+ mcol = DM_get_face_data_layer(dm, CD_WEIGHT_MCOL);
+ if(!mcol)
+ mcol = DM_get_face_data_layer(dm, CD_MCOL);
+
+ for( i=0; i < dm->getNumFaces(dm); i++ ) {
+ start = index[redir[mface[i].mat_nr]];
+ if( mface[i].v4 )
+ index[redir[mface[i].mat_nr]] += 18;
+ else
+ index[redir[mface[i].mat_nr]] += 9;
+
+ /* v1 v2 v3 */
+ varray[start] = mcol[i*4].r;
+ varray[start+1] = mcol[i*4].g;
+ varray[start+2] = mcol[i*4].b;
+ varray[start+3] = mcol[i*4+1].r;
+ varray[start+4] = mcol[i*4+1].g;
+ varray[start+5] = mcol[i*4+1].b;
+ varray[start+6] = mcol[i*4+2].r;
+ varray[start+7] = mcol[i*4+2].g;
+ varray[start+8] = mcol[i*4+2].b;
+
+ if( mface[i].v4 ) {
+ /* v3 v4 v1 */
+ varray[start+9] = mcol[i*4+2].r;
+ varray[start+10] = mcol[i*4+2].g;
+ varray[start+11] = mcol[i*4+2].b;
+ varray[start+12] = mcol[i*4+3].r;
+ varray[start+13] = mcol[i*4+3].g;
+ varray[start+14] = mcol[i*4+3].b;
+ varray[start+15] = mcol[i*4].r;
+ varray[start+16] = mcol[i*4].g;
+ varray[start+17] = mcol[i*4].b;
+ }
+ }
+}
+
+GPUBuffer *GPU_buffer_color( struct DerivedMesh *dm, GPUDrawObject *object )
+{
+ return GPU_buffer_setup( dm, object, sizeof(char)*3*object->nelements, GPU_buffer_copy_color);
+}
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