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OpenGL2: Prefer VBO/IBO sizes of around 4MB.

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This commit is contained in:
SmileTheory 2013-11-05 20:07:10 -08:00
parent 8c3ae8d7d2
commit 7672533e8f
1 changed files with 74 additions and 17 deletions
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83
code/renderergl2/tr_bsp.c
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@ -1851,6 +1851,9 @@ static void R_CreateWorldVBOs(void)
VBO_t *vbo;
IBO_t *ibo;
int maxVboSize = 4 * 1024 * 1024;
int maxIboSize = 4 * 1024 * 1024;
int startTime, endTime;
startTime = ri.Milliseconds();
@ -1859,11 +1862,22 @@ static void R_CreateWorldVBOs(void)
numSortedSurfaces = 0;
for(surface = &s_worldData.surfaces[0]; surface < &s_worldData.surfaces[s_worldData.numsurfaces]; surface++)
{
if(*surface->data == SF_FACE || *surface->data == SF_GRID || *surface->data == SF_TRIANGLES)
{
shader_t *shader = surface->shader;
if (shader->isPortal)
continue;
if (shader->isSky)
continue;
if (ShaderRequiresCPUDeforms(shader))
continue;
if (!(*surface->data == SF_FACE || *surface->data == SF_GRID || *surface->data == SF_TRIANGLES))
continue;
numSortedSurfaces++;
}
}
// presort surfaces
surfacesSorted = ri.Malloc(numSortedSurfaces * sizeof(*surfacesSorted));
@ -1871,19 +1885,66 @@ static void R_CreateWorldVBOs(void)
j = 0;
for(surface = &s_worldData.surfaces[0]; surface < &s_worldData.surfaces[s_worldData.numsurfaces]; surface++)
{
if(*surface->data == SF_FACE || *surface->data == SF_GRID || *surface->data == SF_TRIANGLES)
{
shader_t *shader = surface->shader;
if (shader->isPortal)
continue;
if (shader->isSky)
continue;
if (ShaderRequiresCPUDeforms(shader))
continue;
if (!(*surface->data == SF_FACE || *surface->data == SF_GRID || *surface->data == SF_TRIANGLES))
continue;
surfacesSorted[j++] = surface;
}
}
qsort(surfacesSorted, numSortedSurfaces, sizeof(*surfacesSorted), BSPSurfaceCompare);
k = 0;
for(firstSurf = lastSurf = surfacesSorted; firstSurf < &surfacesSorted[numSortedSurfaces]; firstSurf = lastSurf)
for(firstSurf = lastSurf = currSurf = surfacesSorted; firstSurf < &surfacesSorted[numSortedSurfaces]; firstSurf = currSurf = lastSurf)
{
while(lastSurf < &surfacesSorted[numSortedSurfaces] && (*lastSurf)->shader->sortedIndex == (*firstSurf)->shader->sortedIndex)
lastSurf++;
int currVboSize, currIboSize;
currVboSize = currIboSize = 0;
while (currVboSize < maxVboSize && currIboSize < maxIboSize && lastSurf < &surfacesSorted[numSortedSurfaces])
{
int addVboSize, addIboSize, currShaderIndex;
addVboSize = addIboSize = 0;
currShaderIndex = (*currSurf)->shader->sortedIndex;
while(currSurf < &surfacesSorted[numSortedSurfaces] && (*currSurf)->shader->sortedIndex == currShaderIndex)
{
srfBspSurface_t *bspSurf = (srfBspSurface_t *) (*currSurf)->data;
switch (bspSurf->surfaceType)
{
case SF_FACE:
case SF_GRID:
case SF_TRIANGLES:
addVboSize += bspSurf->numVerts * sizeof(srfVert_t);
addIboSize += bspSurf->numTriangles * 3 *sizeof(glIndex_t);
break;
default:
break;
}
currSurf++;
}
if ((currVboSize != 0 && addVboSize + currVboSize > maxVboSize)
|| (currIboSize != 0 && addIboSize + currIboSize > maxIboSize))
break;
lastSurf = currSurf;
currVboSize += addVboSize;
currIboSize += addIboSize;
}
numVerts = 0;
numTriangles = 0;
@ -1897,12 +1958,8 @@ static void R_CreateWorldVBOs(void)
case SF_FACE:
case SF_GRID:
case SF_TRIANGLES:
if(bspSurf->numVerts)
numVerts += bspSurf->numVerts;
if(bspSurf->numTriangles)
numTriangles += bspSurf->numTriangles;
numSurfaces++;
break;