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== GPU Buffers ==

Browse Source 
This patch attempts to clean up and document the GPU buffers
code. There are a few bug fixes as well.

Patch reviewed here: http://codereview.appspot.com/4631052/

Summary:

* Bugfix: make GPU_buffer_copy_normal convert from shorts to floats
  correctly, also fixed the use of cached face normal CustomData.

* Bugfix: changed the `mat_nr' field of GPUBufferMaterial from char to
  short.

* Changed color buffer setup to not alloc a temporary copy of color
  data, just passes the MCol data in directly.

* Changed the GPU buffer pool code to make clearer what operates
  specifically on the global pool.

* Lots of refactoring for GPU_drawobject_new; should operate mostly
  the same (except got rid of one unecessary allocation), just split
  into more functions and without macros now.

* Converted some #defines into enumerations.

* Made some stuff private, pulled out of header file.

* Deleted unused function GPU_buffer_pool_free_unused().

* Removed GPU_interleaved_setup and related #defines. (I think this
  was used for editmode VBOs, but those were disabled.)

* Added lots of comments.

* Added a few comments in the code signed `--nicholas' to note places
  where I am unsure about design or usage, would be good to address
  these better.

* Code formatting changed to be more consistent with the rest of
  Blender.

* Renamed some fields and variables to be more consistent with
  Blender's naming conventions.

* Renamed some fields and variables to use more descriptive names,
  e.g. renamed `redir' to `mat_orig_to_new'.

* Removed print outs with DEBUG_VBO -- don't feel too strongly about
  this one, just not used elsewhere in Blender, could be easily added
  back if others disagree though.

* Moved the PBVH drawing code down to the bottom of the file, before
  was sitting in the middle of the other VBO code
This commit is contained in:
Nicholas Bishop
2011-07-08 19:58:02 +00:00
parent a6bb0f93ad
commit abdf420a6d
4 changed files with 1190 additions and 1211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
source/blender/blenkernel/intern/cdderivedmesh.c
View File

@@ -284,8 +284,10 @@ static void cdDM_drawVerts(DerivedMesh *dm)
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
GPU_vertex_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
if(dm->drawObject->nelements) glDrawArrays(GL_POINTS,0, dm->drawObject->nelements);
else glDrawArrays(GL_POINTS,0, dm->drawObject->nlooseverts);
if(dm->drawObject->tot_triangle_point)
glDrawArrays(GL_POINTS,0, dm->drawObject->tot_triangle_point);
else
glDrawArrays(GL_POINTS,0, dm->drawObject->tot_loose_point);
}
GPU_buffer_unbind();
}
@@ -547,9 +549,10 @@ static void cdDM_drawFacesSolid(DerivedMesh *dm,
GPU_normal_setup( dm );
if( !GPU_buffer_legacy(dm) ) {
glShadeModel(GL_SMOOTH);
for( a = 0; a < dm->drawObject->nmaterials; a++ ) {
for( a = 0; a < dm->drawObject->totmaterial; a++ ) {
if( setMaterial(dm->drawObject->materials[a].mat_nr+1, NULL) )
glDrawArrays(GL_TRIANGLES, dm->drawObject->materials[a].start, dm->drawObject->materials[a].end-dm->drawObject->materials[a].start);
glDrawArrays(GL_TRIANGLES, dm->drawObject->materials[a].start,
dm->drawObject->materials[a].totpoint);
}
}
GPU_buffer_unbind( );
@@ -629,13 +632,13 @@ static void cdDM_drawFacesColored(DerivedMesh *dm, int useTwoSided, unsigned cha
GPU_color_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
glShadeModel(GL_SMOOTH);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->nelements);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->tot_triangle_point);
if( useTwoSided ) {
GPU_color4_upload(dm,cp2);
GPU_color_setup(dm);
glCullFace(GL_FRONT);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->nelements);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->tot_triangle_point);
glCullFace(GL_BACK);
}
}
@@ -787,8 +790,8 @@ static void cdDM_drawFacesTex_common(DerivedMesh *dm,
glShadeModel( GL_SMOOTH );
lastFlag = 0;
for(i = 0; i < dm->drawObject->nelements/3; i++) {
int actualFace = dm->drawObject->faceRemap[i];
for(i = 0; i < dm->drawObject->tot_triangle_point/3; i++) {
int actualFace = dm->drawObject->triangle_to_mface[i];
int flag = 1;
if(drawParams) {
@@ -819,13 +822,13 @@ static void cdDM_drawFacesTex_common(DerivedMesh *dm,
startFace = i;
}
}
if( startFace < dm->drawObject->nelements/3 ) {
if( startFace < dm->drawObject->tot_triangle_point/3 ) {
if( lastFlag != 0 ) { /* if the flag is 0 it means the face is hidden or invisible */
if (lastFlag==1 && col)
GPU_color_switch(1);
else
GPU_color_switch(0);
glDrawArrays(GL_TRIANGLES,startFace*3,dm->drawObject->nelements-startFace*3);
glDrawArrays(GL_TRIANGLES, startFace*3, dm->drawObject->tot_triangle_point - startFace*3);
}
}
}
@@ -935,7 +938,7 @@ static void cdDM_drawMappedFaces(DerivedMesh *dm, int (*setDrawOptions)(void *us
if( useColors && mc )
GPU_color_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
int tottri = dm->drawObject->nelements/3;
int tottri = dm->drawObject->tot_triangle_point/3;
glShadeModel(GL_SMOOTH);
if(tottri == 0) {
@@ -947,17 +950,17 @@ static void cdDM_drawMappedFaces(DerivedMesh *dm, int (*setDrawOptions)(void *us
}
else {
/* we need to check if the next material changes */
int next_actualFace= dm->drawObject->faceRemap[0];
int next_actualFace= dm->drawObject->triangle_to_mface[0];
for( i = 0; i < tottri; i++ ) {
//int actualFace = dm->drawObject->faceRemap[i];
//int actualFace = dm->drawObject->triangle_to_mface[i];
int actualFace = next_actualFace;
MFace *mface= mf + actualFace;
int drawSmooth= (mface->flag & ME_SMOOTH);
int draw = 1;
if(i != tottri-1)
next_actualFace= dm->drawObject->faceRemap[i+1];
next_actualFace= dm->drawObject->triangle_to_mface[i+1];
orig= (index==NULL) ? actualFace : index[actualFace];
@@ -1129,9 +1132,9 @@ static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, vo
GPU_normal_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
for( i = 0; i < dm->drawObject->nelements/3; i++ ) {
for( i = 0; i < dm->drawObject->tot_triangle_point/3; i++ ) {
a = dm->drawObject->faceRemap[i];
a = dm->drawObject->triangle_to_mface[i];
mface = mf + a;
new_matnr = mface->mat_nr + 1;
@@ -1153,7 +1156,7 @@ static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, vo
if( numdata != 0 ) {
GPU_buffer_free(buffer, NULL);
GPU_buffer_free(buffer);
buffer = NULL;
}
@@ -1193,7 +1196,7 @@ static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, vo
}
if( numdata != 0 ) {
elementsize = GPU_attrib_element_size( datatypes, numdata );
buffer = GPU_buffer_alloc( elementsize*dm->drawObject->nelements, NULL );
buffer = GPU_buffer_alloc( elementsize*dm->drawObject->tot_triangle_point);
if( buffer == NULL ) {
GPU_buffer_unbind();
dm->drawObject->legacy = 1;
@@ -1202,7 +1205,7 @@ static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, vo
varray = GPU_buffer_lock_stream(buffer);
if( varray == NULL ) {
GPU_buffer_unbind();
GPU_buffer_free(buffer, NULL);
GPU_buffer_free(buffer);
dm->drawObject->legacy = 1;
return;
}
@@ -1341,7 +1344,7 @@ static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, vo
}
GPU_buffer_unbind();
}
GPU_buffer_free( buffer, NULL );
GPU_buffer_free(buffer);
}
glShadeModel(GL_FLAT);

135
source/blender/gpu/GPU_buffers.h
View File

@@ -37,8 +37,6 @@
#ifndef __GPU_BUFFERS_H__
#define __GPU_BUFFERS_H__
#define MAX_FREE_GPU_BUFFERS 8
#ifdef _DEBUG
/*#define DEBUG_VBO(X) printf(X)*/
#define DEBUG_VBO(X)
@@ -46,112 +44,92 @@
#define DEBUG_VBO(X)
#endif
#ifdef _DEBUG
#define ERROR_VBO(X) printf(X)
#else
#define ERROR_VBO(X)
#endif
struct DerivedMesh;
struct DMGridData;
struct GHash;
struct DMGridData;
struct GPUVertPointLink;
/* V - vertex, N - normal, T - uv, C - color
F - float, UB - unsigned byte */
#define GPU_BUFFER_INTER_V3F 1
#define GPU_BUFFER_INTER_N3F 2
#define GPU_BUFFER_INTER_T2F 3
#define GPU_BUFFER_INTER_C3UB 4
#define GPU_BUFFER_INTER_C4UB 5
#define GPU_BUFFER_INTER_END -1
typedef struct GPUBuffer
{
typedef struct GPUBuffer {
int size; /* in bytes */
void *pointer; /* used with vertex arrays */
unsigned int id; /* used with vertex buffer objects */
} GPUBuffer;
/* stores deleted buffers so that new buffers wouldn't have to
be recreated that often. */
typedef struct GPUBufferPool
{
int size; /* number of allocated buffers stored */
int maxsize; /* size of the array */
GPUBuffer **buffers;
} GPUBufferPool;
typedef struct GPUBufferMaterial {
/* range of points used for this material */
int start;
int totpoint;
typedef struct GPUBufferMaterial
{
int start; /* at which vertex in the buffer the material starts */
int end; /* at which vertex it ends */
char mat_nr;
/* original material index */
short mat_nr;
} GPUBufferMaterial;
typedef struct IndexLink {
int element;
struct IndexLink *next;
} IndexLink;
/* meshes are split up by material since changing materials requires
GL state changes that can't occur in the middle of drawing an
array.
typedef struct GPUDrawObject
{
GPUBuffer *vertices;
some simplifying assumptions are made:
* all quads are treated as two triangles.
* no vertex sharing is used; each triangle gets its own copy of the
vertices it uses (this makes it easy to deal with a vertex used
by faces with different properties, such as smooth/solid shading,
different MCols, etc.)
to avoid confusion between the original MVert vertices and the
arrays of OpenGL vertices, the latter are referred to here and in
the source as `points'. similarly, the OpenGL triangles generated
for MFaces are referred to as triangles rather than faces.
*/
typedef struct GPUDrawObject {
GPUBuffer *points;
GPUBuffer *normals;
GPUBuffer *uv;
GPUBuffer *colors;
GPUBuffer *edges;
GPUBuffer *uvedges;
int *faceRemap; /* at what index was the face originally in DerivedMesh */
IndexLink *indices; /* given an index, find all elements using it */
IndexLink *indexMem; /* for faster memory allocation/freeing */
int indexMemUsage; /* how many are already allocated */
/* for each triangle, the original MFace index */
int *triangle_to_mface;
/* for each original vertex, the list of related points */
struct GPUVertPointLink *vert_points;
/* storage for the vert_points lists */
struct GPUVertPointLink *vert_points_mem;
int vert_points_usage;
int colType;
GPUBufferMaterial *materials;
int totmaterial;
int tot_triangle_point;
int tot_loose_point;
/* caches of the original DerivedMesh values */
int totvert;
int totedge;
int nmaterials;
int nelements; /* (number of faces) * 3 */
int nlooseverts;
int nedges;
int nindices;
int legacy; /* if there was a failure allocating some buffer, use old rendering code */
/* if there was a failure allocating some buffer, use old
rendering code */
int legacy;
} GPUDrawObject;
/* used for GLSL materials */
typedef struct GPUAttrib
{
typedef struct GPUAttrib {
int index;
int size;
int type;
} GPUAttrib;
GPUBufferPool *GPU_buffer_pool_new(void);
void GPU_buffer_pool_free( GPUBufferPool *pool );
void GPU_buffer_pool_free_unused( GPUBufferPool *pool );
void GPU_global_buffer_pool_free(void);
GPUBuffer *GPU_buffer_alloc( int size, GPUBufferPool *pool );
void GPU_buffer_free( GPUBuffer *buffer, GPUBufferPool *pool );
GPUBuffer *GPU_buffer_alloc(int size);
void GPU_buffer_free(GPUBuffer *buffer);
GPUDrawObject *GPU_drawobject_new( struct DerivedMesh *dm );
void GPU_drawobject_free( struct DerivedMesh *dm );
/* Buffers for non-DerivedMesh drawing */
void *GPU_build_mesh_buffers(struct GHash *map, struct MVert *mvert,
struct MFace *mface, int *face_indices,
int totface, int *vert_indices, int uniq_verts,
int totvert);
void GPU_update_mesh_buffers(void *buffers, struct MVert *mvert,
int *vert_indices, int totvert);
void *GPU_build_grid_buffers(struct DMGridData **grids,
int *grid_indices, int totgrid, int gridsize);
void GPU_update_grid_buffers(void *buffers_v, struct DMGridData **grids,
int *grid_indices, int totgrid, int gridsize, int smooth);
void GPU_draw_buffers(void *buffers);
void GPU_free_buffers(void *buffers);
/* called before drawing */
void GPU_vertex_setup( struct DerivedMesh *dm );
void GPU_normal_setup( struct DerivedMesh *dm );
@@ -175,6 +153,7 @@ void GPU_color4_upload( struct DerivedMesh *dm, unsigned char *data );
/* switch color rendering on=1/off=0 */
void GPU_color_switch( int mode );
/* used for drawing edges */
void GPU_buffer_draw_elements( GPUBuffer *elements, unsigned int mode, int start, int count );
/* called after drawing */
@@ -183,4 +162,18 @@ void GPU_buffer_unbind(void);
/* used to check whether to use the old (without buffers) code */
int GPU_buffer_legacy( struct DerivedMesh *dm );
/* Buffers for non-DerivedMesh drawing */
void *GPU_build_mesh_buffers(struct GHash *map, struct MVert *mvert,
struct MFace *mface, int *face_indices,
int totface, int *vert_indices, int uniq_verts,
int totvert);
void GPU_update_mesh_buffers(void *buffers, struct MVert *mvert,
int *vert_indices, int totvert);
void *GPU_build_grid_buffers(struct DMGridData **grids,
int *grid_indices, int totgrid, int gridsize);
void GPU_update_grid_buffers(void *buffers_v, struct DMGridData **grids,
int *grid_indices, int totgrid, int gridsize, int smooth);
void GPU_draw_buffers(void *buffers);
void GPU_free_buffers(void *buffers);
#endif

2221
source/blender/gpu/intern/gpu_buffers.c
View File

@@ -56,11 +56,13 @@
#include "GPU_buffers.h"
#define GPU_BUFFER_VERTEX_STATE 1
#define GPU_BUFFER_NORMAL_STATE 2
#define GPU_BUFFER_TEXCOORD_STATE 4
#define GPU_BUFFER_COLOR_STATE 8
#define GPU_BUFFER_ELEMENT_STATE 16
typedef enum {
GPU_BUFFER_VERTEX_STATE = 1,
GPU_BUFFER_NORMAL_STATE = 2,
GPU_BUFFER_TEXCOORD_STATE = 4,
GPU_BUFFER_COLOR_STATE = 8,
GPU_BUFFER_ELEMENT_STATE = 16,
} GPUBufferState;
#define MAX_GPU_ATTRIB_DATA 32
@@ -69,342 +71,1207 @@
/* -1 - undefined, 0 - vertex arrays, 1 - VBOs */
static int useVBOs = -1;
static GPUBufferPool *globalPool = 0;
static int GLStates = 0;
static GPUBufferState GLStates = 0;
static GPUAttrib attribData[MAX_GPU_ATTRIB_DATA] = { { -1, 0, 0 } };
GPUBufferPool *GPU_buffer_pool_new(void)
/* stores recently-deleted buffers so that new buffers won't have to
be recreated as often
only one instance of this pool is created, stored in
gpu_buffer_pool
note that the number of buffers in the pool is usually limited to
MAX_FREE_GPU_BUFFERS, but this limit may be exceeded temporarily
when a GPUBuffer is released outside the main thread; due to OpenGL
restrictions it cannot be immediately released
*/
typedef struct GPUBufferPool {
/* number of allocated buffers stored */
int totbuf;
/* actual allocated length of the array */
int maxsize;
GPUBuffer **buffers;
} GPUBufferPool;
#define MAX_FREE_GPU_BUFFERS 8
/* create a new GPUBufferPool */
static GPUBufferPool *gpu_buffer_pool_new(void)
{
GPUBufferPool *pool;
DEBUG_VBO("GPU_buffer_pool_new\n");
/* enable VBOs if supported */
if(useVBOs == -1)
useVBOs = (GLEW_ARB_vertex_buffer_object ? 1 : 0);
if( useVBOs < 0 ) {
if( GLEW_ARB_vertex_buffer_object ) {
DEBUG_VBO( "Vertex Buffer Objects supported.\n" );
useVBOs = 1;
}
else {
DEBUG_VBO( "Vertex Buffer Objects NOT supported.\n" );
useVBOs = 0;
}
}
pool = MEM_callocN(sizeof(GPUBufferPool), "GPUBuffer");
pool = MEM_callocN(sizeof(GPUBufferPool), "GPU_buffer_pool_new");
pool->maxsize = MAX_FREE_GPU_BUFFERS;
pool->buffers = MEM_callocN(sizeof(GPUBuffer*)*pool->maxsize, "GPU_buffer_pool_new buffers");
pool->buffers = MEM_callocN(sizeof(GPUBuffer*)*pool->maxsize,
"GPUBuffer.buffers");
return pool;
}
static void GPU_buffer_pool_remove( int index, GPUBufferPool *pool )
/* remove a GPUBuffer from the pool (does not free the GPUBuffer) */
static void gpu_buffer_pool_remove_index(GPUBufferPool *pool, int index)
{
int i;
if( index >= pool->size || index < 0 ) {
ERROR_VBO("Wrong index, out of bounds in call to GPU_buffer_pool_remove");
if(!pool || index < 0 || index >= pool->totbuf)
return;
}
DEBUG_VBO("GPU_buffer_pool_remove\n");
for( i = index; i < pool->size-1; i++ ) {
/* shift entries down, overwriting the buffer at `index' */
for(i = index; i < pool->totbuf - 1; i++)
pool->buffers[i] = pool->buffers[i+1];
}
if( pool->size > 0 )
pool->buffers[pool->size-1] = 0;
pool->size--;
/* clear the last entry */
if(pool->totbuf > 0)
pool->buffers[pool->totbuf - 1] = NULL;
pool->totbuf--;
}
static void GPU_buffer_pool_delete_last( GPUBufferPool *pool )
/* delete the last entry in the pool */
static void gpu_buffer_pool_delete_last(GPUBufferPool *pool)
{
int last;
GPUBuffer *last;
DEBUG_VBO("GPU_buffer_pool_delete_last\n");
if( pool->size <= 0 )
if(pool->totbuf <= 0)
return;
last = pool->size-1;
/* get the last entry */
if(!(last = pool->buffers[pool->totbuf - 1]))
return;
if( pool->buffers[last] != 0 ) {
if( useVBOs ) {
glDeleteBuffersARB(1,&pool->buffers[last]->id);
MEM_freeN( pool->buffers[last] );
}
else {
MEM_freeN( pool->buffers[last]->pointer );
MEM_freeN( pool->buffers[last] );
}
pool->buffers[last] = 0;
} else {
DEBUG_VBO("Why are we accessing a null buffer?\n");
}
pool->size--;
/* delete the buffer's data */
if(useVBOs)
glDeleteBuffersARB(1, &last->id);
else
MEM_freeN(last->pointer);
/* delete the buffer and remove from pool */
MEM_freeN(last);
pool->totbuf--;
pool->buffers[pool->totbuf] = NULL;
}
void GPU_buffer_pool_free(GPUBufferPool *pool)
/* free a GPUBufferPool; also frees the data in the pool's
GPUBuffers */
static void gpu_buffer_pool_free(GPUBufferPool *pool)
{
DEBUG_VBO("GPU_buffer_pool_free\n");
if( pool == 0 )
pool = globalPool;
if( pool == 0 )
if(!pool)
return;
while( pool->size )
GPU_buffer_pool_delete_last(pool);
while(pool->totbuf)
gpu_buffer_pool_delete_last(pool);
MEM_freeN(pool->buffers);
MEM_freeN(pool);
/* if we are releasing the global pool, stop keeping a reference to it */
if (pool == globalPool)
globalPool = NULL;
}
void GPU_buffer_pool_free_unused(GPUBufferPool *pool)
static GPUBufferPool *gpu_buffer_pool = NULL;
static GPUBufferPool *gpu_get_global_buffer_pool(void)
{
DEBUG_VBO("GPU_buffer_pool_free_unused\n");
/* initialize the pool */
if(!gpu_buffer_pool)
gpu_buffer_pool = gpu_buffer_pool_new();
if( pool == 0 )
pool = globalPool;
if( pool == 0 )
return;
while( pool->size > MAX_FREE_GPU_BUFFERS )
GPU_buffer_pool_delete_last(pool);
return gpu_buffer_pool;
}
GPUBuffer *GPU_buffer_alloc( int size, GPUBufferPool *pool )
void GPU_global_buffer_pool_free(void)
{
char buffer[60];
int i;
int cursize;
GPUBuffer *allocated;
int bestfit = -1;
gpu_buffer_pool_free(gpu_buffer_pool);
gpu_buffer_pool = NULL;
}
DEBUG_VBO("GPU_buffer_alloc\n");
/* get a GPUBuffer of at least `size' bytes; uses one from the buffer
pool if possible, otherwise creates a new one */
GPUBuffer *GPU_buffer_alloc(int size)
{
GPUBufferPool *pool;
GPUBuffer *buf;
int i, bufsize, bestfit = -1;
if( pool == 0 ) {
if( globalPool == 0 )
globalPool = GPU_buffer_pool_new();
pool = globalPool;
}
pool = gpu_get_global_buffer_pool();
for( i = 0; i < pool->size; i++ ) {
cursize = pool->buffers[i]->size;
if( cursize == size ) {
allocated = pool->buffers[i];
GPU_buffer_pool_remove(i,pool);
DEBUG_VBO("free buffer of exact size found\n");
return allocated;
/* not sure if this buffer pool code has been profiled much,
seems to me that the graphics driver and system memory
management might do this stuff anyway. --nicholas
*/
/* check the global buffer pool for a recently-deleted buffer
that is at least as big as the request, but not more than
twice as big */
for(i = 0; i < pool->totbuf; i++) {
bufsize = pool->buffers[i]->size;
/* check for an exact size match */
if(bufsize == size) {
bestfit = i;
break;
}
/* smaller buffers won't fit data and buffers at least twice as big are a waste of memory */
else if( cursize > size && size > cursize/2 ) {
/* is it closer to the required size than the last appropriate buffer found. try to save memory */
if( bestfit == -1 || pool->buffers[bestfit]->size > cursize ) {
/* smaller buffers won't fit data and buffers at least
twice as big are a waste of memory */
else if(bufsize > size && size > (bufsize / 2)) {
/* is it closer to the required size than the
last appropriate buffer found. try to save
memory */
if(bestfit == -1 || pool->buffers[bestfit]->size > bufsize) {
bestfit = i;
}
}
}
if( bestfit == -1 ) {
DEBUG_VBO("allocating a new buffer\n");
allocated = MEM_mallocN(sizeof(GPUBuffer), "GPU_buffer_alloc");
allocated->size = size;
if( useVBOs == 1 ) {
glGenBuffersARB( 1, &allocated->id );
glBindBufferARB( GL_ARRAY_BUFFER_ARB, allocated->id );
glBufferDataARB( GL_ARRAY_BUFFER_ARB, size, 0, GL_STATIC_DRAW_ARB );
glBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
}
else {
allocated->pointer = MEM_mallocN(size, "GPU_buffer_alloc_vertexarray");
while( allocated->pointer == 0 && pool->size > 0 ) {
GPU_buffer_pool_delete_last(pool);
allocated->pointer = MEM_mallocN(size, "GPU_buffer_alloc_vertexarray");
}
if( allocated->pointer == 0 && pool->size == 0 ) {
return 0;
}
}
/* if an acceptable buffer was found in the pool, remove it
from the pool and return it */
if(bestfit != -1) {
buf = pool->buffers[bestfit];
gpu_buffer_pool_remove_index(pool, bestfit);
return buf;
}
/* no acceptable buffer found in the pool, create a new one */
buf = MEM_callocN(sizeof(GPUBuffer), "GPUBuffer");
buf->size = size;
if(useVBOs == 1) {
/* create a new VBO and initialize it to the requested
size */
glGenBuffersARB(1, &buf->id);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, buf->id);
glBufferDataARB(GL_ARRAY_BUFFER_ARB, size, 0, GL_STATIC_DRAW_ARB);
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
else {
sprintf(buffer,"free buffer found. Wasted %d bytes\n", pool->buffers[bestfit]->size-size);
DEBUG_VBO(buffer);
allocated = pool->buffers[bestfit];
GPU_buffer_pool_remove(bestfit,pool);
buf->pointer = MEM_mallocN(size, "GPUBuffer.pointer");
/* purpose of this seems to be dealing with
out-of-memory errors? looks a bit iffy to me
though, at least on Linux I expect malloc() would
just overcommit. --nicholas */
while(!buf->pointer && pool->totbuf > 0) {
gpu_buffer_pool_delete_last(pool);
buf->pointer = MEM_mallocN(size, "GPUBuffer.pointer");
}
if(!buf->pointer)
return NULL;
}
return allocated;
return buf;
}
void GPU_buffer_free( GPUBuffer *buffer, GPUBufferPool *pool )
/* release a GPUBuffer; does not free the actual buffer or its data,
but rather moves it to the pool of recently-free'd buffers for
possible re-use*/
void GPU_buffer_free(GPUBuffer *buffer)
{
GPUBufferPool *pool;
int i;
DEBUG_VBO("GPU_buffer_free\n");
if( buffer == 0 )
if(!buffer)
return;
if( pool == 0 )
pool = globalPool;
if( pool == 0 )
pool = globalPool = GPU_buffer_pool_new();
pool = gpu_get_global_buffer_pool();
/* free the last used buffer in the queue if no more space, but only
if we are in the main thread. for e.g. rendering or baking it can
happen that we are in other thread and can't call OpenGL, in that
case cleanup will be done GPU_buffer_pool_free_unused */
if( BLI_thread_is_main() ) {
while( pool->size >= MAX_FREE_GPU_BUFFERS )
GPU_buffer_pool_delete_last( pool );
if(BLI_thread_is_main()) {
/* in main thread, safe to decrease size of pool back
down to MAX_FREE_GPU_BUFFERS */
while(pool->totbuf >= MAX_FREE_GPU_BUFFERS)
gpu_buffer_pool_delete_last(pool);
}
else {
if( pool->maxsize == pool->size ) {
/* outside of main thread, can't safely delete the
buffer, so increase pool size */
if(pool->maxsize == pool->totbuf) {
pool->maxsize += MAX_FREE_GPU_BUFFERS;
pool->buffers = MEM_reallocN(pool->buffers, sizeof(GPUBuffer*)*pool->maxsize);
pool->buffers = MEM_reallocN(pool->buffers,
sizeof(GPUBuffer*) * pool->maxsize);
}
}
for( i =pool->size; i > 0; i-- ) {
/* shift pool entries up by one */
for(i = pool->totbuf; i > 0; i--)
pool->buffers[i] = pool->buffers[i-1];
}
/* insert the buffer into the beginning of the pool */
pool->buffers[0] = buffer;
pool->size++;
pool->totbuf++;
}
GPUDrawObject *GPU_drawobject_new( DerivedMesh *dm )
typedef struct GPUVertPointLink {
struct GPUVertPointLink *next;
/* -1 means uninitialized */
int point_index;
} GPUVertPointLink;
/* add a new point to the list of points related to a particular
vertex */
static void gpu_drawobject_add_vert_point(GPUDrawObject *gdo, int vert_index, int point_index)
{
GPUDrawObject *object;
MFace *mface;
int numverts[MAX_MATERIALS];
int redir[MAX_MATERIALS];
int *index;
int i;
int curmat, curverts, numfaces;
GPUVertPointLink *lnk;
DEBUG_VBO("GPU_drawobject_new\n");
lnk = &gdo->vert_points[vert_index];
object = MEM_callocN(sizeof(GPUDrawObject),"GPU_drawobject_new_object");
object->nindices = dm->getNumVerts(dm);
object->indices = MEM_mallocN(sizeof(IndexLink)*object->nindices, "GPU_drawobject_new_indices");
object->nedges = dm->getNumEdges(dm);
/* if first link is in use, add a new link at the end */
if(lnk->point_index != -1) {
/* get last link */
for(; lnk->next; lnk = lnk->next);
for( i = 0; i < object->nindices; i++ ) {
object->indices[i].element = -1;
object->indices[i].next = 0;
}
/*object->legacy = 1;*/
memset(numverts,0,sizeof(int)*MAX_MATERIALS);
mface = dm->getFaceArray(dm);
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; i++ ) {
if( mface[i].v4 )
numverts[mface[i].mat_nr] += 6; /* split every quad into two triangles */
else
numverts[mface[i].mat_nr] += 3;
/* add a new link from the pool */
lnk = lnk->next = &gdo->vert_points_mem[gdo->vert_points_usage];
gdo->vert_points_usage++;
}
for( i = 0; i < MAX_MATERIALS; i++ ) {
if( numverts[i] > 0 ) {
object->nmaterials++;
object->nelements += numverts[i];
lnk->point_index = point_index;
}
/* update the vert_points and triangle_to_mface fields with a new
triangle */
static void gpu_drawobject_add_triangle(GPUDrawObject *gdo,
int base_point_index,
int face_index,
int v1, int v2, int v3)
{
int i, v[3] = {v1, v2, v3};
for(i = 0; i < 3; i++)
gpu_drawobject_add_vert_point(gdo, v[i], base_point_index + i);
gdo->triangle_to_mface[base_point_index / 3] = face_index;
}
/* for each vertex, build a list of points related to it; these lists
are stored in an array sized to the number of vertices */
static void gpu_drawobject_init_vert_points(GPUDrawObject *gdo, MFace *f, int totface)
{
GPUBufferMaterial *mat;
int i, mat_orig_to_new[MAX_MATERIALS];
/* allocate the array and space for links */
gdo->vert_points = MEM_callocN(sizeof(GPUVertPointLink) * gdo->totvert,
"GPUDrawObject.vert_points");
gdo->vert_points_mem = MEM_callocN(sizeof(GPUVertPointLink) * gdo->tot_triangle_point,
"GPUDrawObject.vert_points_mem");
gdo->vert_points_usage = 0;
/* build a map from the original material indices to the new
GPUBufferMaterial indices */
for(i = 0; i < gdo->totmaterial; i++)
mat_orig_to_new[gdo->materials[i].mat_nr] = i;
/* -1 indicates the link is not yet used */
for(i = 0; i < gdo->totvert; i++)
gdo->vert_points[i].point_index = -1;
for(i = 0; i < totface; i++, f++) {
mat = &gdo->materials[mat_orig_to_new[f->mat_nr]];
/* add triangle */
gpu_drawobject_add_triangle(gdo, mat->start + mat->totpoint,
i, f->v1, f->v2, f->v3);
mat->totpoint += 3;
/* add second triangle for quads */
if(f->v4) {
gpu_drawobject_add_triangle(gdo, mat->start + mat->totpoint,
i, f->v3, f->v4, f->v1);
mat->totpoint += 3;
}
}
object->materials = MEM_mallocN(sizeof(GPUBufferMaterial)*object->nmaterials,"GPU_drawobject_new_materials");
index = MEM_mallocN(sizeof(int)*object->nmaterials,"GPU_drawobject_new_index");
curmat = curverts = 0;
for( i = 0; i < MAX_MATERIALS; i++ ) {
if( numverts[i] > 0 ) {
object->materials[curmat].mat_nr = i;
object->materials[curmat].start = curverts;
index[curmat] = curverts/3;
object->materials[curmat].end = curverts+numverts[i];
curverts += numverts[i];
/* map any unused vertices to loose points */
for(i = 0; i < gdo->totvert; i++) {
if(gdo->vert_points[i].point_index == -1) {
gdo->vert_points[i].point_index = gdo->tot_triangle_point + gdo->tot_loose_point;
gdo->tot_loose_point++;
}
}
}
/* see GPUDrawObject's structure definition for a description of the
data being initialized here */
GPUDrawObject *GPU_drawobject_new( DerivedMesh *dm )
{
GPUDrawObject *gdo;
MFace *mface;
int points_per_mat[MAX_MATERIALS];
int i, curmat, curpoint, totface;
mface = dm->getFaceArray(dm);
totface= dm->getNumFaces(dm);
/* get the number of points used by each material, treating
each quad as two triangles */
memset(points_per_mat, 0, sizeof(int)*MAX_MATERIALS);
for(i = 0; i < totface; i++)
points_per_mat[mface[i].mat_nr] += mface[i].v4 ? 6 : 3;
/* create the GPUDrawObject */
gdo = MEM_callocN(sizeof(GPUDrawObject),"GPUDrawObject");
gdo->totvert = dm->getNumVerts(dm);
gdo->totedge = dm->getNumEdges(dm);
/* count the number of materials used by this DerivedMesh */
for(i = 0; i < MAX_MATERIALS; i++) {
if(points_per_mat[i] > 0)
gdo->totmaterial++;
}
/* allocate an array of materials used by this DerivedMesh */
gdo->materials = MEM_mallocN(sizeof(GPUBufferMaterial) * gdo->totmaterial,
"GPUDrawObject.materials");
/* initialize the materials array */
for(i = 0, curmat = 0, curpoint = 0; i < MAX_MATERIALS; i++) {
if(points_per_mat[i] > 0) {
gdo->materials[curmat].start = curpoint;
gdo->materials[curmat].totpoint = 0;
gdo->materials[curmat].mat_nr = i;
curpoint += points_per_mat[i];
curmat++;
}
}
object->faceRemap = MEM_mallocN(sizeof(int)*object->nelements/3,"GPU_drawobject_new_faceRemap");
for( i = 0; i < object->nmaterials; i++ ) {
redir[object->materials[i].mat_nr] = i; /* material number -> material index */
/* store total number of points used for triangles */
gdo->tot_triangle_point = curpoint;
gdo->triangle_to_mface = MEM_mallocN(sizeof(int) * (gdo->tot_triangle_point / 3),
"GPUDrawObject.triangle_to_mface");
gpu_drawobject_init_vert_points(gdo, mface, totface);
return gdo;
}
void GPU_drawobject_free(DerivedMesh *dm)
{
GPUDrawObject *gdo;
if(!dm || !(gdo = dm->drawObject))
return;
MEM_freeN(gdo->materials);
MEM_freeN(gdo->triangle_to_mface);
MEM_freeN(gdo->vert_points);
MEM_freeN(gdo->vert_points_mem);
GPU_buffer_free(gdo->points);
GPU_buffer_free(gdo->normals);
GPU_buffer_free(gdo->uv);
GPU_buffer_free(gdo->colors);
GPU_buffer_free(gdo->edges);
GPU_buffer_free(gdo->uvedges);
MEM_freeN(gdo);
dm->drawObject = NULL;
}
typedef void (*GPUBufferCopyFunc)(DerivedMesh *dm, float *varray, int *index,
int *mat_orig_to_new, void *user_data);
static GPUBuffer *gpu_buffer_setup(DerivedMesh *dm, GPUDrawObject *object,
int vector_size, int size, GLenum target,
void *user, GPUBufferCopyFunc copy_f)
{
GPUBufferPool *pool;
GPUBuffer *buffer;
float *varray;
int mat_orig_to_new[MAX_MATERIALS];
int *cur_index_per_mat;
int i;
int success;
GLboolean uploaded;
pool = gpu_get_global_buffer_pool();
/* alloc a GPUBuffer; fall back to legacy mode on failure */
if(!(buffer = GPU_buffer_alloc(size)))
dm->drawObject->legacy = 1;
/* nothing to do for legacy mode */
if(dm->drawObject->legacy)
return 0;
cur_index_per_mat = MEM_mallocN(sizeof(int)*object->totmaterial,
"GPU_buffer_setup.cur_index_per_mat");
for(i = 0; i < object->totmaterial; i++) {
/* for each material, the current index to copy data to */
cur_index_per_mat[i] = object->materials[i].start * vector_size;
/* map from original material index to new
GPUBufferMaterial index */
mat_orig_to_new[object->materials[i].mat_nr] = i;
}
object->indexMem = MEM_callocN(sizeof(IndexLink)*object->nelements,"GPU_drawobject_new_indexMem");
object->indexMemUsage = 0;
if(useVBOs) {
success = 0;
#define ADDLINK( INDEX, ACTUAL ) \
if( object->indices[INDEX].element == -1 ) { \
object->indices[INDEX].element = ACTUAL; \
} else { \
IndexLink *lnk = &object->indices[INDEX]; \
while( lnk->next != 0 ) lnk = lnk->next; \
lnk->next = &object->indexMem[object->indexMemUsage]; \
lnk->next->element = ACTUAL; \
object->indexMemUsage++; \
while(!success) {
/* bind the buffer and discard previous data,
avoids stalling gpu */
glBindBufferARB(target, buffer->id);
glBufferDataARB(target, buffer->size, 0, GL_STATIC_DRAW_ARB);
/* attempt to map the buffer */
if(!(varray = glMapBufferARB(target, GL_WRITE_ONLY_ARB))) {
/* failed to map the buffer; delete it */
GPU_buffer_free(buffer);
gpu_buffer_pool_delete_last(pool);
buffer= NULL;
/* try freeing an entry from the pool
and reallocating the buffer */
if(pool->totbuf > 0) {
gpu_buffer_pool_delete_last(pool);
buffer = GPU_buffer_alloc(size);
}
/* allocation still failed; fall back
to legacy mode */
if(!buffer) {
dm->drawObject->legacy = 1;
success = 1;
}
}
else {
success = 1;
}
}
for( i=0; i < numfaces; i++ ) {
int curInd = index[redir[mface[i].mat_nr]];
object->faceRemap[curInd] = i;
ADDLINK( mface[i].v1, curInd*3 );
ADDLINK( mface[i].v2, curInd*3+1 );
ADDLINK( mface[i].v3, curInd*3+2 );
if( mface[i].v4 ) {
object->faceRemap[curInd+1] = i;
ADDLINK( mface[i].v3, curInd*3+3 );
ADDLINK( mface[i].v4, curInd*3+4 );
ADDLINK( mface[i].v1, curInd*3+5 );
index[redir[mface[i].mat_nr]]+=2;
/* check legacy fallback didn't happen */
if(dm->drawObject->legacy == 0) {
uploaded = GL_FALSE;
/* attempt to upload the data to the VBO */
while(uploaded == GL_FALSE) {
(*copy_f)(dm, varray, cur_index_per_mat, mat_orig_to_new, user);
/* glUnmapBuffer returns GL_FALSE if
the data store is corrupted; retry
in that case */
uploaded = glUnmapBufferARB(target);
}
}
glBindBufferARB(target, 0);
}
else {
/* VBO not supported, use vertex array fallback */
if(buffer->pointer) {
varray = buffer->pointer;
(*copy_f)(dm, varray, cur_index_per_mat, mat_orig_to_new, user);
}
else {
index[redir[mface[i].mat_nr]]++;
dm->drawObject->legacy = 1;
}
}
for( i = 0; i < object->nindices; i++ ) {
if( object->indices[i].element == -1 ) {
object->indices[i].element = object->nelements + object->nlooseverts;
object->nlooseverts++;
}
}
#undef ADDLINK
MEM_freeN(cur_index_per_mat);
MEM_freeN(index);
return object;
return buffer;
}
void GPU_drawobject_free( DerivedMesh *dm )
static void GPU_buffer_copy_vertex(DerivedMesh *dm, float *varray, int *index, int *mat_orig_to_new, void *UNUSED(user))
{
GPUDrawObject *object;
MVert *mvert;
MFace *f;
int i, j, start, totface;
DEBUG_VBO("GPU_drawobject_free\n");
mvert = dm->getVertArray(dm);
f = dm->getFaceArray(dm);
if( dm == 0 )
return;
object = dm->drawObject;
if( object == 0 )
return;
totface= dm->getNumFaces(dm);
for(i = 0; i < totface; i++, f++) {
start = index[mat_orig_to_new[f->mat_nr]];
MEM_freeN(object->materials);
MEM_freeN(object->faceRemap);
MEM_freeN(object->indices);
MEM_freeN(object->indexMem);
GPU_buffer_free( object->vertices, globalPool );
GPU_buffer_free( object->normals, globalPool );
GPU_buffer_free( object->uv, globalPool );
GPU_buffer_free( object->colors, globalPool );
GPU_buffer_free( object->edges, globalPool );
GPU_buffer_free( object->uvedges, globalPool );
/* v1 v2 v3 */
copy_v3_v3(&varray[start], mvert[f->v1].co);
copy_v3_v3(&varray[start+3], mvert[f->v2].co);
copy_v3_v3(&varray[start+6], mvert[f->v3].co);
index[mat_orig_to_new[f->mat_nr]] += 9;
MEM_freeN(object);
dm->drawObject = 0;
if(f->v4) {
/* v3 v4 v1 */
copy_v3_v3(&varray[start+9], mvert[f->v3].co);
copy_v3_v3(&varray[start+12], mvert[f->v4].co);
copy_v3_v3(&varray[start+15], mvert[f->v1].co);
index[mat_orig_to_new[f->mat_nr]] += 9;
}
}
/* copy loose points */
j = dm->drawObject->tot_triangle_point*3;
for(i = 0; i < dm->drawObject->totvert; i++) {
if(dm->drawObject->vert_points[i].point_index >= dm->drawObject->tot_triangle_point) {
copy_v3_v3(&varray[j],mvert[i].co);
j+=3;
}
}
}
static void GPU_buffer_copy_normal(DerivedMesh *dm, float *varray, int *index, int *mat_orig_to_new, void *UNUSED(user))
{
int i, totface;
int start;
float f_no[3];
float *nors= dm->getFaceDataArray(dm, CD_NORMAL);
MVert *mvert = dm->getVertArray(dm);
MFace *f = dm->getFaceArray(dm);
totface= dm->getNumFaces(dm);
for(i = 0; i < totface; i++, f++) {
const int smoothnormal = (f->flag & ME_SMOOTH);
start = index[mat_orig_to_new[f->mat_nr]];
index[mat_orig_to_new[f->mat_nr]] += f->v4 ? 18 : 9;
if(smoothnormal) {
/* copy vertex normal */
normal_short_to_float_v3(&varray[start], mvert[f->v1].no);
normal_short_to_float_v3(&varray[start+3], mvert[f->v2].no);
normal_short_to_float_v3(&varray[start+6], mvert[f->v3].no);
if(f->v4) {
normal_short_to_float_v3(&varray[start+9], mvert[f->v3].no);
normal_short_to_float_v3(&varray[start+12], mvert[f->v4].no);
normal_short_to_float_v3(&varray[start+15], mvert[f->v1].no);
}
}
else if(nors) {
/* copy cached face normal */
copy_v3_v3(&varray[start], &nors[i*3]);
copy_v3_v3(&varray[start+3], &nors[i*3]);
copy_v3_v3(&varray[start+6], &nors[i*3]);
if(f->v4) {
copy_v3_v3(&varray[start+9], &nors[i*3]);
copy_v3_v3(&varray[start+12], &nors[i*3]);
copy_v3_v3(&varray[start+15], &nors[i*3]);
}
}
else {
/* calculate face normal */
if(f->v4)
normal_quad_v3(f_no, mvert[f->v1].co, mvert[f->v2].co, mvert[f->v3].co, mvert[f->v4].co);
else
normal_tri_v3(f_no, mvert[f->v1].co, mvert[f->v2].co, mvert[f->v3].co);
copy_v3_v3(&varray[start], f_no);
copy_v3_v3(&varray[start+3], f_no);
copy_v3_v3(&varray[start+6], f_no);
if(f->v4) {
copy_v3_v3(&varray[start+9], f_no);
copy_v3_v3(&varray[start+12], f_no);
copy_v3_v3(&varray[start+15], f_no);
}
}
}
}
static void GPU_buffer_copy_uv(DerivedMesh *dm, float *varray, int *index, int *mat_orig_to_new, void *UNUSED(user))
{
int start;
int i, totface;
MTFace *mtface;
MFace *f;
if(!(mtface = DM_get_face_data_layer(dm, CD_MTFACE)))
return;
f = dm->getFaceArray(dm);
totface = dm->getNumFaces(dm);
for(i = 0; i < totface; i++, f++) {
start = index[mat_orig_to_new[f->mat_nr]];
/* v1 v2 v3 */
copy_v2_v2(&varray[start],mtface[i].uv[0]);
copy_v2_v2(&varray[start+2],mtface[i].uv[1]);
copy_v2_v2(&varray[start+4],mtface[i].uv[2]);
index[mat_orig_to_new[f->mat_nr]] += 6;
if(f->v4) {
/* v3 v4 v1 */
copy_v2_v2(&varray[start+6],mtface[i].uv[2]);
copy_v2_v2(&varray[start+8],mtface[i].uv[3]);
copy_v2_v2(&varray[start+10],mtface[i].uv[0]);
index[mat_orig_to_new[f->mat_nr]] += 6;
}
}
}
static void GPU_buffer_copy_color3(DerivedMesh *dm, float *varray_, int *index, int *mat_orig_to_new, void *user)
{
int i, totface;
unsigned char *varray = (unsigned char *)varray_;
unsigned char *mcol = (unsigned char *)user;
MFace *f = dm->getFaceArray(dm);
totface= dm->getNumFaces(dm);
for(i=0; i < totface; i++, f++) {
int start = index[mat_orig_to_new[f->mat_nr]];
/* v1 v2 v3 */
VECCOPY(&varray[start], &mcol[i*12]);
VECCOPY(&varray[start+3], &mcol[i*12+3]);
VECCOPY(&varray[start+6], &mcol[i*12+6]);
index[mat_orig_to_new[f->mat_nr]] += 9;
if(f->v4) {
/* v3 v4 v1 */
VECCOPY(&varray[start+9], &mcol[i*12+6]);
VECCOPY(&varray[start+12], &mcol[i*12+9]);
VECCOPY(&varray[start+15], &mcol[i*12]);
index[mat_orig_to_new[f->mat_nr]] += 9;
}
}
}
static void copy_mcol_uc3(unsigned char *v, unsigned char *col)
{
v[0] = col[3];
v[1] = col[2];
v[2] = col[1];
}
/* treat varray_ as an array of MCol, four MCol's per face */
static void GPU_buffer_copy_mcol(DerivedMesh *dm, float *varray_, int *index, int *mat_orig_to_new, void *user)
{
int i, totface;
unsigned char *varray = (unsigned char *)varray_;
unsigned char *mcol = (unsigned char *)user;
MFace *f = dm->getFaceArray(dm);
totface= dm->getNumFaces(dm);
for(i=0; i < totface; i++, f++) {
int start = index[mat_orig_to_new[f->mat_nr]];
/* v1 v2 v3 */
copy_mcol_uc3(&varray[start], &mcol[i*16]);
copy_mcol_uc3(&varray[start+3], &mcol[i*16+4]);
copy_mcol_uc3(&varray[start+6], &mcol[i*16+8]);
index[mat_orig_to_new[f->mat_nr]] += 9;
if(f->v4) {
/* v3 v4 v1 */
copy_mcol_uc3(&varray[start+9], &mcol[i*16+8]);
copy_mcol_uc3(&varray[start+12], &mcol[i*16+12]);
copy_mcol_uc3(&varray[start+15], &mcol[i*16]);
index[mat_orig_to_new[f->mat_nr]] += 9;
}
}
}
static void GPU_buffer_copy_edge(DerivedMesh *dm, float *varray_, int *UNUSED(index), int *UNUSED(mat_orig_to_new), void *UNUSED(user))
{
MEdge *medge;
unsigned int *varray = (unsigned int *)varray_;
int i, totedge;
medge = dm->getEdgeArray(dm);
totedge = dm->getNumEdges(dm);
for(i = 0; i < totedge; i++, medge++) {
varray[i*2] = dm->drawObject->vert_points[medge->v1].point_index;
varray[i*2+1] = dm->drawObject->vert_points[medge->v2].point_index;
}
}
static void GPU_buffer_copy_uvedge(DerivedMesh *dm, float *varray, int *UNUSED(index), int *UNUSED(mat_orig_to_new), void *UNUSED(user))
{
MTFace *tf = DM_get_face_data_layer(dm, CD_MTFACE);
int i, j=0;
if(!tf)
return;
for(i = 0; i < dm->numFaceData; i++, tf++) {
MFace mf;
dm->getFace(dm,i,&mf);
copy_v2_v2(&varray[j],tf->uv[0]);
copy_v2_v2(&varray[j+2],tf->uv[1]);
copy_v2_v2(&varray[j+4],tf->uv[1]);
copy_v2_v2(&varray[j+6],tf->uv[2]);
if(!mf.v4) {
copy_v2_v2(&varray[j+8],tf->uv[2]);
copy_v2_v2(&varray[j+10],tf->uv[0]);
j+=12;
} else {
copy_v2_v2(&varray[j+8],tf->uv[2]);
copy_v2_v2(&varray[j+10],tf->uv[3]);
copy_v2_v2(&varray[j+12],tf->uv[3]);
copy_v2_v2(&varray[j+14],tf->uv[0]);
j+=16;
}
}
}
/* get the DerivedMesh's MCols; choose (in decreasing order of
preference) from CD_ID_MCOL, CD_WEIGHT_MCOL, or CD_MCOL */
static MCol *gpu_buffer_color_type(DerivedMesh *dm)
{
MCol *c;
int type;
type = CD_ID_MCOL;
c = DM_get_face_data_layer(dm, type);
if(!c) {
type = CD_WEIGHT_MCOL;
c = DM_get_face_data_layer(dm, type);
if(!c) {
type = CD_MCOL;
c = DM_get_face_data_layer(dm, type);
}
}
dm->drawObject->colType = type;
return c;
}
typedef enum {
GPU_BUFFER_VERTEX = 0,
GPU_BUFFER_NORMAL,
GPU_BUFFER_COLOR,
GPU_BUFFER_UV,
GPU_BUFFER_EDGE,
GPU_BUFFER_UVEDGE,
} GPUBufferType;
typedef struct {
GPUBufferCopyFunc copy;
GLenum gl_buffer_type;
int vector_size;
} GPUBufferTypeSettings;
const GPUBufferTypeSettings gpu_buffer_type_settings[] = {
{GPU_buffer_copy_vertex, GL_ARRAY_BUFFER_ARB, 3},
{GPU_buffer_copy_normal, GL_ARRAY_BUFFER_ARB, 3},
{GPU_buffer_copy_mcol, GL_ARRAY_BUFFER_ARB, 3},
{GPU_buffer_copy_uv, GL_ARRAY_BUFFER_ARB, 2},
{GPU_buffer_copy_edge, GL_ELEMENT_ARRAY_BUFFER_ARB, 2},
{GPU_buffer_copy_uvedge, GL_ELEMENT_ARRAY_BUFFER_ARB, 4}
};
/* get the GPUDrawObject buffer associated with a type */
static GPUBuffer **gpu_drawobject_buffer_from_type(GPUDrawObject *gdo, GPUBufferType type)
{
switch(type) {
case GPU_BUFFER_VERTEX:
return &gdo->points;
case GPU_BUFFER_NORMAL:
return &gdo->normals;
case GPU_BUFFER_COLOR:
return &gdo->colors;
case GPU_BUFFER_UV:
return &gdo->uv;
case GPU_BUFFER_EDGE:
return &gdo->edges;
case GPU_BUFFER_UVEDGE:
return &gdo->uvedges;
default:
return NULL;
}
}
/* get the amount of space to allocate for a buffer of a particular type */
static int gpu_buffer_size_from_type(DerivedMesh *dm, GPUBufferType type)
{
switch(type) {
case GPU_BUFFER_VERTEX:
return sizeof(float)*3 * (dm->drawObject->tot_triangle_point + dm->drawObject->tot_loose_point);
case GPU_BUFFER_NORMAL:
return sizeof(float)*3*dm->drawObject->tot_triangle_point;
case GPU_BUFFER_COLOR:
return sizeof(char)*3*dm->drawObject->tot_triangle_point;
case GPU_BUFFER_UV:
return sizeof(float)*2*dm->drawObject->tot_triangle_point;
case GPU_BUFFER_EDGE:
return sizeof(int)*2*dm->drawObject->totedge;
case GPU_BUFFER_UVEDGE:
/* each face gets 3 points, 3 edges per triangle, and
each edge has its own, non-shared coords, so each
tri corner needs minimum of 4 floats, quads used
less so here we can over allocate and assume all
tris. */
return sizeof(float) * dm->drawObject->tot_triangle_point;
default:
return -1;
}
}
/* call gpu_buffer_setup with settings for a particular type of buffer */
static GPUBuffer *gpu_buffer_setup_type(DerivedMesh *dm, GPUBufferType type)
{
const GPUBufferTypeSettings *ts;
void *user_data = NULL;
GPUBuffer *buf;
ts = &gpu_buffer_type_settings[type];
/* special handling for MCol and UV buffers */
if(type == GPU_BUFFER_COLOR) {
if(!(user_data = gpu_buffer_color_type(dm)))
return NULL;
}
else if(type == GPU_BUFFER_UV) {
if(!DM_get_face_data_layer(dm, CD_MTFACE))
return NULL;
}
buf = gpu_buffer_setup(dm, dm->drawObject, ts->vector_size,
gpu_buffer_size_from_type(dm, type),
ts->gl_buffer_type, user_data, ts->copy);
return buf;
}
/* get the buffer of `type', initializing the GPUDrawObject and
buffer if needed */
static GPUBuffer *gpu_buffer_setup_common(DerivedMesh *dm, GPUBufferType type)
{
GPUBuffer **buf;
if(!dm->drawObject)
dm->drawObject = GPU_drawobject_new(dm);
buf = gpu_drawobject_buffer_from_type(dm->drawObject, type);
if(!(*buf))
*buf = gpu_buffer_setup_type(dm, type);
return *buf;
}
void GPU_vertex_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_VERTEX))
return;
glEnableClientState(GL_VERTEX_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->points->id);
glVertexPointer(3, GL_FLOAT, 0, 0);
}
else {
glVertexPointer(3, GL_FLOAT, 0, dm->drawObject->points->pointer);
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
}
void GPU_normal_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_NORMAL))
return;
glEnableClientState(GL_NORMAL_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->normals->id);
glNormalPointer(GL_FLOAT, 0, 0);
}
else {
glNormalPointer(GL_FLOAT, 0, dm->drawObject->normals->pointer);
}
GLStates |= GPU_BUFFER_NORMAL_STATE;
}
void GPU_uv_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_UV))
return;
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->uv->id);
glTexCoordPointer(2, GL_FLOAT, 0, 0);
}
else {
glTexCoordPointer(2, GL_FLOAT, 0, dm->drawObject->uv->pointer);
}
GLStates |= GPU_BUFFER_TEXCOORD_STATE;
}
void GPU_color_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_COLOR))
return;
glEnableClientState(GL_COLOR_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->colors->id);
glColorPointer(3, GL_UNSIGNED_BYTE, 0, 0);
}
else {
glColorPointer(3, GL_UNSIGNED_BYTE, 0, dm->drawObject->colors->pointer);
}
GLStates |= GPU_BUFFER_COLOR_STATE;
}
void GPU_edge_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_EDGE))
return;
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_VERTEX))
return;
glEnableClientState(GL_VERTEX_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->points->id);
glVertexPointer(3, GL_FLOAT, 0, 0);
}
else {
glVertexPointer(3, GL_FLOAT, 0, dm->drawObject->points->pointer);
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
if(useVBOs)
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, dm->drawObject->edges->id);
GLStates |= GPU_BUFFER_ELEMENT_STATE;
}
void GPU_uvedge_setup(DerivedMesh *dm)
{
if(!gpu_buffer_setup_common(dm, GPU_BUFFER_UVEDGE))
return;
glEnableClientState(GL_VERTEX_ARRAY);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, dm->drawObject->uvedges->id);
glVertexPointer(2, GL_FLOAT, 0, 0);
}
else {
glVertexPointer(2, GL_FLOAT, 0, dm->drawObject->uvedges->pointer);
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
}
static int GPU_typesize(int type) {
switch(type) {
case GL_FLOAT:
return sizeof(float);
case GL_INT:
return sizeof(int);
case GL_UNSIGNED_INT:
return sizeof(unsigned int);
case GL_BYTE:
return sizeof(char);
case GL_UNSIGNED_BYTE:
return sizeof(unsigned char);
default:
return 0;
}
}
int GPU_attrib_element_size(GPUAttrib data[], int numdata) {
int i, elementsize = 0;
for(i = 0; i < numdata; i++) {
int typesize = GPU_typesize(data[i].type);
if(typesize != 0)
elementsize += typesize*data[i].size;
}
return elementsize;
}
void GPU_interleaved_attrib_setup(GPUBuffer *buffer, GPUAttrib data[], int numdata) {
int i;
int elementsize;
intptr_t offset = 0;
for(i = 0; i < MAX_GPU_ATTRIB_DATA; i++) {
if(attribData[i].index != -1) {
glDisableVertexAttribArrayARB(attribData[i].index);
}
else
break;
}
elementsize = GPU_attrib_element_size(data, numdata);
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, buffer->id);
for(i = 0; i < numdata; i++) {
glEnableVertexAttribArrayARB(data[i].index);
glVertexAttribPointerARB(data[i].index, data[i].size, data[i].type,
GL_FALSE, elementsize, (void *)offset);
offset += data[i].size*GPU_typesize(data[i].type);
attribData[i].index = data[i].index;
attribData[i].size = data[i].size;
attribData[i].type = data[i].type;
}
attribData[numdata].index = -1;
}
else {
for(i = 0; i < numdata; i++) {
glEnableVertexAttribArrayARB(data[i].index);
glVertexAttribPointerARB(data[i].index, data[i].size, data[i].type,
GL_FALSE, elementsize, (char *)buffer->pointer + offset);
offset += data[i].size*GPU_typesize(data[i].type);
}
}
}
void GPU_buffer_unbind(void)
{
int i;
if(GLStates & GPU_BUFFER_VERTEX_STATE)
glDisableClientState(GL_VERTEX_ARRAY);
if(GLStates & GPU_BUFFER_NORMAL_STATE)
glDisableClientState(GL_NORMAL_ARRAY);
if(GLStates & GPU_BUFFER_TEXCOORD_STATE)
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
if(GLStates & GPU_BUFFER_COLOR_STATE)
glDisableClientState(GL_COLOR_ARRAY);
if(GLStates & GPU_BUFFER_ELEMENT_STATE) {
if(useVBOs) {
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
}
}
GLStates &= !(GPU_BUFFER_VERTEX_STATE | GPU_BUFFER_NORMAL_STATE |
GPU_BUFFER_TEXCOORD_STATE | GPU_BUFFER_COLOR_STATE |
GPU_BUFFER_ELEMENT_STATE);
for(i = 0; i < MAX_GPU_ATTRIB_DATA; i++) {
if(attribData[i].index != -1) {
glDisableVertexAttribArrayARB(attribData[i].index);
}
else
break;
}
if(useVBOs)
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
/* confusion: code in cdderivedmesh calls both GPU_color_setup and
GPU_color3_upload; both of these set the `colors' buffer, so seems
like it will just needlessly overwrite? --nicholas */
void GPU_color3_upload(DerivedMesh *dm, unsigned char *data)
{
if(dm->drawObject == 0)
dm->drawObject = GPU_drawobject_new(dm);
GPU_buffer_free(dm->drawObject->colors);
dm->drawObject->colors = gpu_buffer_setup(dm, dm->drawObject, 3,
sizeof(char)*3*dm->drawObject->tot_triangle_point,
GL_ARRAY_BUFFER_ARB, data, GPU_buffer_copy_color3);
}
/* this is used only in cdDM_drawFacesColored, which I think is no
longer used, so can probably remove this --nicholas */
void GPU_color4_upload(DerivedMesh *UNUSED(dm), unsigned char *UNUSED(data))
{
/*if(dm->drawObject == 0)
dm->drawObject = GPU_drawobject_new(dm);
GPU_buffer_free(dm->drawObject->colors);
dm->drawObject->colors = gpu_buffer_setup(dm, dm->drawObject, 3,
sizeof(char)*3*dm->drawObject->tot_triangle_point,
GL_ARRAY_BUFFER_ARB, data, GPU_buffer_copy_color4);*/
}
void GPU_color_switch(int mode)
{
if(mode) {
if(!(GLStates & GPU_BUFFER_COLOR_STATE))
glEnableClientState(GL_COLOR_ARRAY);
GLStates |= GPU_BUFFER_COLOR_STATE;
}
else {
if(GLStates & GPU_BUFFER_COLOR_STATE)
glDisableClientState(GL_COLOR_ARRAY);
GLStates &= (!GPU_BUFFER_COLOR_STATE);
}
}
/* return 1 if drawing should be done using old immediate-mode
code, 0 otherwise */
int GPU_buffer_legacy(DerivedMesh *dm)
{
int test= (U.gameflags & USER_DISABLE_VBO);
if(test)
return 1;
if(dm->drawObject == 0)
dm->drawObject = GPU_drawobject_new(dm);
return dm->drawObject->legacy;
}
void *GPU_buffer_lock(GPUBuffer *buffer)
{
float *varray;
if(!buffer)
return 0;
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, buffer->id);
varray = glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
return varray;
}
else {
return buffer->pointer;
}
}
void *GPU_buffer_lock_stream(GPUBuffer *buffer)
{
float *varray;
if(!buffer)
return 0;
if(useVBOs) {
glBindBufferARB(GL_ARRAY_BUFFER_ARB, buffer->id);
/* discard previous data, avoid stalling gpu */
glBufferDataARB(GL_ARRAY_BUFFER_ARB, buffer->size, 0, GL_STREAM_DRAW_ARB);
varray = glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
return varray;
}
else {
return buffer->pointer;
}
}
void GPU_buffer_unlock(GPUBuffer *buffer)
{
if(useVBOs) {
if(buffer) {
/* note: this operation can fail, could return
an error code from this function? */
glUnmapBufferARB(GL_ARRAY_BUFFER_ARB);
}
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
}
/* used for drawing edges */
void GPU_buffer_draw_elements(GPUBuffer *elements, unsigned int mode, int start, int count)
{
glDrawElements(mode, count, GL_UNSIGNED_INT,
(useVBOs ?
(void*)(start * sizeof(unsigned int)) :
((int*)elements->pointer) + start));
}
/* XXX: the rest of the code in this file is used for optimized PBVH
drawing and doesn't interact at all with the buffer code above */
/* Convenience struct for building the VBO. */
typedef struct {
float co[3];
@@ -781,887 +1648,3 @@ void GPU_free_buffers(void *buffers_v)
}
}
static GPUBuffer *GPU_buffer_setup( DerivedMesh *dm, GPUDrawObject *object, int vector_size, int size, GLenum target, void *user, void (*copy_f)(DerivedMesh *, float *, int *, int *, void *) )
{
GPUBuffer *buffer;
float *varray;
int redir[MAX_MATERIALS];
int *index;
int i;
int success;
GLboolean uploaded;
DEBUG_VBO("GPU_buffer_setup\n");
if( globalPool == 0 )
globalPool = GPU_buffer_pool_new();
buffer = GPU_buffer_alloc(size,globalPool);
if( buffer == 0 ) {
dm->drawObject->legacy = 1;
}
if( dm->drawObject->legacy ) {
return 0;
}
index = MEM_mallocN(sizeof(int)*object->nmaterials,"GPU_buffer_setup");
for( i = 0; i < object->nmaterials; i++ ) {
index[i] = object->materials[i].start*vector_size;
redir[object->materials[i].mat_nr] = i;
}
if( useVBOs ) {
success = 0;
while( success == 0 ) {
glBindBufferARB( target, buffer->id );
glBufferDataARB( target, buffer->size, 0, GL_STATIC_DRAW_ARB ); /* discard previous data, avoid stalling gpu */
varray = glMapBufferARB( target, GL_WRITE_ONLY_ARB );
if( varray == 0 ) {
DEBUG_VBO( "Failed to map buffer to client address space\n" );
GPU_buffer_free( buffer, globalPool );
GPU_buffer_pool_delete_last( globalPool );
buffer= NULL;
if( globalPool->size > 0 ) {
GPU_buffer_pool_delete_last( globalPool );
buffer = GPU_buffer_alloc( size, globalPool );
if( buffer == 0 ) {
dm->drawObject->legacy = 1;
success = 1;
}
}
else {
dm->drawObject->legacy = 1;
success = 1;
}
}
else {
success = 1;
}
}
if( dm->drawObject->legacy == 0 ) {
uploaded = GL_FALSE;
while( !uploaded ) {
(*copy_f)( dm, varray, index, redir, user );
uploaded = glUnmapBufferARB( target ); /* returns false if data got corruped during transfer */
}
}
glBindBufferARB(target, 0);
}
else {
if( buffer->pointer != 0 ) {
varray = buffer->pointer;
(*copy_f)( dm, varray, index, redir, user );
}
else {
dm->drawObject->legacy = 1;
}
}
MEM_freeN(index);
return buffer;
}
static void GPU_buffer_copy_vertex(DerivedMesh *dm, float *varray, int *index, int *redir, void *UNUSED(user))
{
int start;
int i, j, numfaces;
MVert *mvert;
MFace *mface;
DEBUG_VBO("GPU_buffer_copy_vertex\n");
mvert = dm->getVertArray(dm);
mface = dm->getFaceArray(dm);
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; 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);
}
}
j = dm->drawObject->nelements*3;
for( i = 0; i < dm->drawObject->nindices; i++ ) {
if( dm->drawObject->indices[i].element >= dm->drawObject->nelements ) {
VECCOPY(&varray[j],mvert[i].co);
j+=3;
}
}
}
static GPUBuffer *GPU_buffer_vertex( DerivedMesh *dm )
{
DEBUG_VBO("GPU_buffer_vertex\n");
return GPU_buffer_setup( dm, dm->drawObject, 3, sizeof(float)*3*(dm->drawObject->nelements+dm->drawObject->nlooseverts), GL_ARRAY_BUFFER_ARB, 0, GPU_buffer_copy_vertex);
}
static void GPU_buffer_copy_normal(DerivedMesh *dm, float *varray, int *index, int *redir, void *UNUSED(user))
{
int i, numfaces;
int start;
float norm[3];
float *nors= dm->getFaceDataArray(dm, CD_NORMAL);
MVert *mvert = dm->getVertArray(dm);
MFace *mface = dm->getFaceArray(dm);
DEBUG_VBO("GPU_buffer_copy_normal\n");
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; i++ ) {
const int smoothnormal = (mface[i].flag & ME_SMOOTH);
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(smoothnormal) {
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( nors ) {
VECCOPY(&varray[start],&nors[i*3]);
VECCOPY(&varray[start+3],&nors[i*3]);
VECCOPY(&varray[start+6],&nors[i*3]);
}
if( mface[i].v4 )
normal_quad_v3( norm,mvert[mface[i].v1].co, mvert[mface[i].v2].co, mvert[mface[i].v3].co, mvert[mface[i].v4].co);
else
normal_tri_v3( norm,mvert[mface[i].v1].co, mvert[mface[i].v2].co, mvert[mface[i].v3].co);
VECCOPY(&varray[start],norm);
VECCOPY(&varray[start+3],norm);
VECCOPY(&varray[start+6],norm);
}
if( mface[i].v4 ) {
/* v3 v4 v1 */
if(smoothnormal) {
VECCOPY(&varray[start+9],mvert[mface[i].v3].no);
VECCOPY(&varray[start+12],mvert[mface[i].v4].no);
VECCOPY(&varray[start+15],mvert[mface[i].v1].no);
}
else {
VECCOPY(&varray[start+9],norm);
VECCOPY(&varray[start+12],norm);
VECCOPY(&varray[start+15],norm);
}
}
}
}
static GPUBuffer *GPU_buffer_normal( DerivedMesh *dm )
{
DEBUG_VBO("GPU_buffer_normal\n");
return GPU_buffer_setup( dm, dm->drawObject, 3, sizeof(float)*3*dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, 0, GPU_buffer_copy_normal);
}
static void GPU_buffer_copy_uv(DerivedMesh *dm, float *varray, int *index, int *redir, void *UNUSED(user))
{
int start;
int i, numfaces;
MTFace *mtface;
MFace *mface;
DEBUG_VBO("GPU_buffer_copy_uv\n");
mface = dm->getFaceArray(dm);
mtface = DM_get_face_data_layer(dm, CD_MTFACE);
if( mtface == 0 ) {
DEBUG_VBO("Texture coordinates do not exist for this mesh");
return;
}
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; 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]);
}
}
}
static GPUBuffer *GPU_buffer_uv( DerivedMesh *dm )
{
DEBUG_VBO("GPU_buffer_uv\n");
if( DM_get_face_data_layer(dm, CD_MTFACE) != 0 )
return GPU_buffer_setup( dm, dm->drawObject, 2, sizeof(float)*2*dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, 0, GPU_buffer_copy_uv);
else
return 0;
}
static void GPU_buffer_copy_color3( DerivedMesh *dm, float *varray_, int *index, int *redir, void *user )
{
int i, numfaces;
unsigned char *varray = (unsigned char *)varray_;
unsigned char *mcol = (unsigned char *)user;
MFace *mface = dm->getFaceArray(dm);
DEBUG_VBO("GPU_buffer_copy_color3\n");
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; i++ ) {
int 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],&mcol[i*12]);
VECCOPY(&varray[start+3],&mcol[i*12+3]);
VECCOPY(&varray[start+6],&mcol[i*12+6]);
if( mface[i].v4 ) {
/* v3 v4 v1 */
VECCOPY(&varray[start+9],&mcol[i*12+6]);
VECCOPY(&varray[start+12],&mcol[i*12+9]);
VECCOPY(&varray[start+15],&mcol[i*12]);
}
}
}
static void GPU_buffer_copy_color4( DerivedMesh *dm, float *varray_, int *index, int *redir, void *user )
{
int i, numfaces;
unsigned char *varray = (unsigned char *)varray_;
unsigned char *mcol = (unsigned char *)user;
MFace *mface = dm->getFaceArray(dm);
DEBUG_VBO("GPU_buffer_copy_color4\n");
numfaces= dm->getNumFaces(dm);
for( i=0; i < numfaces; i++ ) {
int 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],&mcol[i*16]);
VECCOPY(&varray[start+3],&mcol[i*16+4]);
VECCOPY(&varray[start+6],&mcol[i*16+8]);
if( mface[i].v4 ) {
/* v3 v4 v1 */
VECCOPY(&varray[start+9],&mcol[i*16+8]);
VECCOPY(&varray[start+12],&mcol[i*16+12]);
VECCOPY(&varray[start+15],&mcol[i*16]);
}
}
}
static GPUBuffer *GPU_buffer_color( DerivedMesh *dm )
{
unsigned char *colors;
int i, numfaces;
MCol *mcol;
GPUBuffer *result;
DEBUG_VBO("GPU_buffer_color\n");
mcol = DM_get_face_data_layer(dm, CD_ID_MCOL);
dm->drawObject->colType = CD_ID_MCOL;
if(!mcol) {
mcol = DM_get_face_data_layer(dm, CD_WEIGHT_MCOL);
dm->drawObject->colType = CD_WEIGHT_MCOL;
}
if(!mcol) {
mcol = DM_get_face_data_layer(dm, CD_MCOL);
dm->drawObject->colType = CD_MCOL;
}
numfaces= dm->getNumFaces(dm);
colors = MEM_mallocN(numfaces*12*sizeof(unsigned char), "GPU_buffer_color");
for( i=0; i < numfaces*4; i++ ) {
colors[i*3] = mcol[i].b;
colors[i*3+1] = mcol[i].g;
colors[i*3+2] = mcol[i].r;
}
result = GPU_buffer_setup( dm, dm->drawObject, 3, sizeof(char)*3*dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, colors, GPU_buffer_copy_color3 );
MEM_freeN(colors);
return result;
}
static void GPU_buffer_copy_edge(DerivedMesh *dm, float *varray, int *UNUSED(index), int *UNUSED(redir), void *UNUSED(user))
{
int i;
MEdge *medge;
unsigned int *varray_ = (unsigned int *)varray;
int numedges;
DEBUG_VBO("GPU_buffer_copy_edge\n");
medge = dm->getEdgeArray(dm);
numedges= dm->getNumEdges(dm);
for(i = 0; i < numedges; i++) {
varray_[i*2] = (unsigned int)dm->drawObject->indices[medge[i].v1].element;
varray_[i*2+1] = (unsigned int)dm->drawObject->indices[medge[i].v2].element;
}
}
static GPUBuffer *GPU_buffer_edge( DerivedMesh *dm )
{
DEBUG_VBO("GPU_buffer_edge\n");
return GPU_buffer_setup( dm, dm->drawObject, 2, sizeof(int)*2*dm->drawObject->nedges, GL_ELEMENT_ARRAY_BUFFER_ARB, 0, GPU_buffer_copy_edge);
}
static void GPU_buffer_copy_uvedge(DerivedMesh *dm, float *varray, int *UNUSED(index), int *UNUSED(redir), void *UNUSED(user))
{
MTFace *tf = DM_get_face_data_layer(dm, CD_MTFACE);
int i, j=0;
DEBUG_VBO("GPU_buffer_copy_uvedge\n");
if(tf) {
for(i = 0; i < dm->numFaceData; i++, tf++) {
MFace mf;
dm->getFace(dm,i,&mf);
VECCOPY2D(&varray[j],tf->uv[0]);
VECCOPY2D(&varray[j+2],tf->uv[1]);
VECCOPY2D(&varray[j+4],tf->uv[1]);
VECCOPY2D(&varray[j+6],tf->uv[2]);
if(!mf.v4) {
VECCOPY2D(&varray[j+8],tf->uv[2]);
VECCOPY2D(&varray[j+10],tf->uv[0]);
j+=12;
} else {
VECCOPY2D(&varray[j+8],tf->uv[2]);
VECCOPY2D(&varray[j+10],tf->uv[3]);
VECCOPY2D(&varray[j+12],tf->uv[3]);
VECCOPY2D(&varray[j+14],tf->uv[0]);
j+=16;
}
}
}
else {
DEBUG_VBO("Could not get MTFACE data layer");
}
}
static GPUBuffer *GPU_buffer_uvedge( DerivedMesh *dm )
{
DEBUG_VBO("GPU_buffer_uvedge\n");
/* logic here:
* ...each face gets 3 'nelements'
* ...3 edges per triangle
* ...each edge has its own, non-shared coords.
* so each tri corner needs minimum of 4 floats, quads used less so here we can over allocate and assume all tris.
* */
return GPU_buffer_setup( dm, dm->drawObject, 4, 4 * sizeof(float) * dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, 0, GPU_buffer_copy_uvedge);
}
void GPU_vertex_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_vertex_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->vertices == 0 )
dm->drawObject->vertices = GPU_buffer_vertex( dm );
if( dm->drawObject->vertices == 0 ) {
DEBUG_VBO( "Failed to setup vertices\n" );
return;
}
glEnableClientState( GL_VERTEX_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->vertices->id );
glVertexPointer( 3, GL_FLOAT, 0, 0 );
}
else {
glVertexPointer( 3, GL_FLOAT, 0, dm->drawObject->vertices->pointer );
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
}
void GPU_normal_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_normal_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->normals == 0 )
dm->drawObject->normals = GPU_buffer_normal( dm );
if( dm->drawObject->normals == 0 ) {
DEBUG_VBO( "Failed to setup normals\n" );
return;
}
glEnableClientState( GL_NORMAL_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->normals->id );
glNormalPointer( GL_FLOAT, 0, 0 );
}
else {
glNormalPointer( GL_FLOAT, 0, dm->drawObject->normals->pointer );
}
GLStates |= GPU_BUFFER_NORMAL_STATE;
}
void GPU_uv_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_uv_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->uv == 0 )
dm->drawObject->uv = GPU_buffer_uv( dm );
if( dm->drawObject->uv != 0 ) {
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->uv->id );
glTexCoordPointer( 2, GL_FLOAT, 0, 0 );
}
else {
glTexCoordPointer( 2, GL_FLOAT, 0, dm->drawObject->uv->pointer );
}
GLStates |= GPU_BUFFER_TEXCOORD_STATE;
}
}
void GPU_color_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_color_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->colors == 0 )
dm->drawObject->colors = GPU_buffer_color( dm );
if( dm->drawObject->colors == 0 ) {
DEBUG_VBO( "Failed to setup colors\n" );
return;
}
glEnableClientState( GL_COLOR_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->colors->id );
glColorPointer( 3, GL_UNSIGNED_BYTE, 0, 0 );
}
else {
glColorPointer( 3, GL_UNSIGNED_BYTE, 0, dm->drawObject->colors->pointer );
}
GLStates |= GPU_BUFFER_COLOR_STATE;
}
void GPU_edge_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_edge_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->edges == 0 )
dm->drawObject->edges = GPU_buffer_edge( dm );
if( dm->drawObject->edges == 0 ) {
DEBUG_VBO( "Failed to setup edges\n" );
return;
}
if( dm->drawObject->vertices == 0 )
dm->drawObject->vertices = GPU_buffer_vertex( dm );
if( dm->drawObject->vertices == 0 ) {
DEBUG_VBO( "Failed to setup vertices\n" );
return;
}
glEnableClientState( GL_VERTEX_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->vertices->id );
glVertexPointer( 3, GL_FLOAT, 0, 0 );
}
else {
glVertexPointer( 3, GL_FLOAT, 0, dm->drawObject->vertices->pointer );
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
if( useVBOs ) {
glBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, dm->drawObject->edges->id );
}
GLStates |= GPU_BUFFER_ELEMENT_STATE;
}
void GPU_uvedge_setup( DerivedMesh *dm )
{
DEBUG_VBO("GPU_uvedge_setup\n");
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new( dm );
if( dm->drawObject->uvedges == 0 )
dm->drawObject->uvedges = GPU_buffer_uvedge( dm );
if( dm->drawObject->uvedges == 0 ) {
DEBUG_VBO( "Failed to setup UV edges\n" );
return;
}
glEnableClientState( GL_VERTEX_ARRAY );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, dm->drawObject->uvedges->id );
glVertexPointer( 2, GL_FLOAT, 0, 0 );
}
else {
glVertexPointer( 2, GL_FLOAT, 0, dm->drawObject->uvedges->pointer );
}
GLStates |= GPU_BUFFER_VERTEX_STATE;
}
void GPU_interleaved_setup( GPUBuffer *buffer, int data[] ) {
int i;
int elementsize = 0;
intptr_t offset = 0;
DEBUG_VBO("GPU_interleaved_setup\n");
for( i = 0; data[i] != GPU_BUFFER_INTER_END; i++ ) {
switch( data[i] ) {
case GPU_BUFFER_INTER_V3F:
elementsize += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_N3F:
elementsize += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_T2F:
elementsize += 2*sizeof(float);
break;
case GPU_BUFFER_INTER_C3UB:
elementsize += 3*sizeof(unsigned char);
break;
case GPU_BUFFER_INTER_C4UB:
elementsize += 4*sizeof(unsigned char);
break;
default:
DEBUG_VBO( "Unknown element in data type array in GPU_interleaved_setup\n" );
}
}
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, buffer->id );
for( i = 0; data[i] != GPU_BUFFER_INTER_END; i++ ) {
switch( data[i] ) {
case GPU_BUFFER_INTER_V3F:
glEnableClientState( GL_VERTEX_ARRAY );
glVertexPointer( 3, GL_FLOAT, elementsize, (void *)offset );
GLStates |= GPU_BUFFER_VERTEX_STATE;
offset += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_N3F:
glEnableClientState( GL_NORMAL_ARRAY );
glNormalPointer( GL_FLOAT, elementsize, (void *)offset );
GLStates |= GPU_BUFFER_NORMAL_STATE;
offset += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_T2F:
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
glTexCoordPointer( 2, GL_FLOAT, elementsize, (void *)offset );
GLStates |= GPU_BUFFER_TEXCOORD_STATE;
offset += 2*sizeof(float);
break;
case GPU_BUFFER_INTER_C3UB:
glEnableClientState( GL_COLOR_ARRAY );
glColorPointer( 3, GL_UNSIGNED_BYTE, elementsize, (void *)offset );
GLStates |= GPU_BUFFER_COLOR_STATE;
offset += 3*sizeof(unsigned char);
break;
case GPU_BUFFER_INTER_C4UB:
glEnableClientState( GL_COLOR_ARRAY );
glColorPointer( 4, GL_UNSIGNED_BYTE, elementsize, (void *)offset );
GLStates |= GPU_BUFFER_COLOR_STATE;
offset += 4*sizeof(unsigned char);
break;
}
}
}
else {
for( i = 0; data[i] != GPU_BUFFER_INTER_END; i++ ) {
switch( data[i] ) {
case GPU_BUFFER_INTER_V3F:
glEnableClientState( GL_VERTEX_ARRAY );
glVertexPointer( 3, GL_FLOAT, elementsize, offset+(char *)buffer->pointer );
GLStates |= GPU_BUFFER_VERTEX_STATE;
offset += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_N3F:
glEnableClientState( GL_NORMAL_ARRAY );
glNormalPointer( GL_FLOAT, elementsize, offset+(char *)buffer->pointer );
GLStates |= GPU_BUFFER_NORMAL_STATE;
offset += 3*sizeof(float);
break;
case GPU_BUFFER_INTER_T2F:
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
glTexCoordPointer( 2, GL_FLOAT, elementsize, offset+(char *)buffer->pointer );
GLStates |= GPU_BUFFER_TEXCOORD_STATE;
offset += 2*sizeof(float);
break;
case GPU_BUFFER_INTER_C3UB:
glEnableClientState( GL_COLOR_ARRAY );
glColorPointer( 3, GL_UNSIGNED_BYTE, elementsize, offset+(char *)buffer->pointer );
GLStates |= GPU_BUFFER_COLOR_STATE;
offset += 3*sizeof(unsigned char);
break;
case GPU_BUFFER_INTER_C4UB:
glEnableClientState( GL_COLOR_ARRAY );
glColorPointer( 4, GL_UNSIGNED_BYTE, elementsize, offset+(char *)buffer->pointer );
GLStates |= GPU_BUFFER_COLOR_STATE;
offset += 4*sizeof(unsigned char);
break;
}
}
}
}
static int GPU_typesize( int type ) {
switch( type ) {
case GL_FLOAT:
return sizeof(float);
case GL_INT:
return sizeof(int);
case GL_UNSIGNED_INT:
return sizeof(unsigned int);
case GL_BYTE:
return sizeof(char);
case GL_UNSIGNED_BYTE:
return sizeof(unsigned char);
default:
return 0;
}
}
int GPU_attrib_element_size( GPUAttrib data[], int numdata ) {
int i, elementsize = 0;
for( i = 0; i < numdata; i++ ) {
int typesize = GPU_typesize(data[i].type);
if( typesize == 0 )
DEBUG_VBO( "Unknown element in data type array in GPU_attrib_element_size\n" );
else {
elementsize += typesize*data[i].size;
}
}
return elementsize;
}
void GPU_interleaved_attrib_setup( GPUBuffer *buffer, GPUAttrib data[], int numdata ) {
int i;
int elementsize;
intptr_t offset = 0;
DEBUG_VBO("GPU_interleaved_attrib_setup\n");
for( i = 0; i < MAX_GPU_ATTRIB_DATA; i++ ) {
if( attribData[i].index != -1 ) {
glDisableVertexAttribArrayARB( attribData[i].index );
}
else
break;
}
elementsize = GPU_attrib_element_size( data, numdata );
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, buffer->id );
for( i = 0; i < numdata; i++ ) {
glEnableVertexAttribArrayARB( data[i].index );
glVertexAttribPointerARB( data[i].index, data[i].size, data[i].type, GL_FALSE, elementsize, (void *)offset );
offset += data[i].size*GPU_typesize(data[i].type);
attribData[i].index = data[i].index;
attribData[i].size = data[i].size;
attribData[i].type = data[i].type;
}
attribData[numdata].index = -1;
}
else {
for( i = 0; i < numdata; i++ ) {
glEnableVertexAttribArrayARB( data[i].index );
glVertexAttribPointerARB( data[i].index, data[i].size, data[i].type, GL_FALSE, elementsize, (char *)buffer->pointer + offset );
offset += data[i].size*GPU_typesize(data[i].type);
}
}
}
void GPU_buffer_unbind(void)
{
int i;
DEBUG_VBO("GPU_buffer_unbind\n");
if( GLStates & GPU_BUFFER_VERTEX_STATE )
glDisableClientState( GL_VERTEX_ARRAY );
if( GLStates & GPU_BUFFER_NORMAL_STATE )
glDisableClientState( GL_NORMAL_ARRAY );
if( GLStates & GPU_BUFFER_TEXCOORD_STATE )
glDisableClientState( GL_TEXTURE_COORD_ARRAY );
if( GLStates & GPU_BUFFER_COLOR_STATE )
glDisableClientState( GL_COLOR_ARRAY );
if( GLStates & GPU_BUFFER_ELEMENT_STATE ) {
if( useVBOs ) {
glBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
}
GLStates &= !(GPU_BUFFER_VERTEX_STATE | GPU_BUFFER_NORMAL_STATE | GPU_BUFFER_TEXCOORD_STATE | GPU_BUFFER_COLOR_STATE | GPU_BUFFER_ELEMENT_STATE);
for( i = 0; i < MAX_GPU_ATTRIB_DATA; i++ ) {
if( attribData[i].index != -1 ) {
glDisableVertexAttribArrayARB( attribData[i].index );
}
else
break;
}
if( GLStates != 0 ) {
DEBUG_VBO( "Some weird OpenGL state is still set. Why?" );
}
if( useVBOs )
glBindBufferARB( GL_ARRAY_BUFFER_ARB, 0 );
}
void GPU_color3_upload( DerivedMesh *dm, unsigned char *data )
{
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new(dm);
GPU_buffer_free(dm->drawObject->colors,globalPool);
dm->drawObject->colors = GPU_buffer_setup( dm, dm->drawObject, 3, sizeof(char)*3*dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, data, GPU_buffer_copy_color3 );
}
void GPU_color4_upload( DerivedMesh *dm, unsigned char *data )
{
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new(dm);
GPU_buffer_free(dm->drawObject->colors,globalPool);
dm->drawObject->colors = GPU_buffer_setup( dm, dm->drawObject, 3, sizeof(char)*3*dm->drawObject->nelements, GL_ARRAY_BUFFER_ARB, data, GPU_buffer_copy_color4 );
}
void GPU_color_switch( int mode )
{
if( mode ) {
if( !(GLStates & GPU_BUFFER_COLOR_STATE) )
glEnableClientState( GL_COLOR_ARRAY );
GLStates |= GPU_BUFFER_COLOR_STATE;
}
else {
if( GLStates & GPU_BUFFER_COLOR_STATE )
glDisableClientState( GL_COLOR_ARRAY );
GLStates &= (!GPU_BUFFER_COLOR_STATE);
}
}
int GPU_buffer_legacy( DerivedMesh *dm )
{
int test= (U.gameflags & USER_DISABLE_VBO);
if( test )
return 1;
if( dm->drawObject == 0 )
dm->drawObject = GPU_drawobject_new(dm);
return dm->drawObject->legacy;
}
void *GPU_buffer_lock( GPUBuffer *buffer )
{
float *varray;
DEBUG_VBO("GPU_buffer_lock\n");
if( buffer == 0 ) {
DEBUG_VBO( "Failed to lock NULL buffer\n" );
return 0;
}
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, buffer->id );
varray = glMapBufferARB( GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB );
if( varray == 0 ) {
DEBUG_VBO( "Failed to map buffer to client address space\n" );
}
return varray;
}
else {
return buffer->pointer;
}
}
void *GPU_buffer_lock_stream( GPUBuffer *buffer )
{
float *varray;
DEBUG_VBO("GPU_buffer_lock_stream\n");
if( buffer == 0 ) {
DEBUG_VBO( "Failed to lock NULL buffer\n" );
return 0;
}
if( useVBOs ) {
glBindBufferARB( GL_ARRAY_BUFFER_ARB, buffer->id );
glBufferDataARB( GL_ARRAY_BUFFER_ARB, buffer->size, 0, GL_STREAM_DRAW_ARB ); /* discard previous data, avoid stalling gpu */
varray = glMapBufferARB( GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB );
if( varray == 0 ) {
DEBUG_VBO( "Failed to map buffer to client address space\n" );
}
return varray;
}
else {
return buffer->pointer;
}
}
void GPU_buffer_unlock( GPUBuffer *buffer )
{
DEBUG_VBO( "GPU_buffer_unlock\n" );
if( useVBOs ) {
if( buffer != 0 ) {
if( glUnmapBufferARB( GL_ARRAY_BUFFER_ARB ) == 0 ) {
DEBUG_VBO( "Failed to copy new data\n" );
}
}
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
}
}
void GPU_buffer_draw_elements( GPUBuffer *elements, unsigned int mode, int start, int count )
{
if( useVBOs ) {
glDrawElements( mode, count, GL_UNSIGNED_INT, (void *)(start*sizeof(unsigned int)) );
}
else {
glDrawElements( mode, count, GL_UNSIGNED_INT, ((int *)elements->pointer)+start );
}
}

2
source/blender/windowmanager/intern/wm_init_exit.c
View File

@@ -416,7 +416,7 @@ void WM_exit(bContext *C)
BPY_python_end();
#endif
GPU_buffer_pool_free(NULL);
GPU_global_buffer_pool_free();
GPU_free_unused_buffers();
GPU_extensions_exit();