void Gui_FillCrosshairBuffer()
{
GLfloat x = (GLfloat)screen_info.w / 2.0f;
GLfloat y = (GLfloat)screen_info.h / 2.0f;
GLfloat *v, crosshairArray[32];
const GLfloat size = 8.0f;
const GLfloat color[4] = {1.0f, 0.0f, 0.0f, 1.0f};
v = crosshairArray;
*v++ = x; *v++ = y - size;
vec4_copy(v, color);
v += 4;
*v++ = 0.0; *v++ = 0.0;
*v++ = x; *v++ = y + size;
vec4_copy(v, color);
v += 4;
*v++ = 0.0; *v++ = 0.0;
*v++ = x - size; *v++ = y;
vec4_copy(v, color);
v += 4;
*v++ = 0.0; *v++ = 0.0;
*v++ = x + size; *v++ = y;
vec4_copy(v, color);
v += 4;
*v++ = 0.0; *v++ = 0.0;
// copy vertices into GL buffer
qglBindBufferARB(GL_ARRAY_BUFFER, crosshairBuffer);
qglBufferDataARB(GL_ARRAY_BUFFER, sizeof(GLfloat[32]), crosshairArray, GL_STATIC_DRAW);
}
/*
========================
idJointBuffer::AllocBufferObject
========================
*/
bool idJointBuffer::AllocBufferObject( const float * joints, int numAllocJoints ) {
assert( apiObject == NULL );
assert_16_byte_aligned( joints );
if ( numAllocJoints <= 0 ) {
idLib::Error( "idJointBuffer::AllocBufferObject: joints = %i", numAllocJoints );
}
numJoints = numAllocJoints;
bool allocationFailed = false;
const int numBytes = GetAllocedSize();
GLuint buffer = 0;
qglGenBuffersARB( 1, &buffer );
qglBindBufferARB( GL_UNIFORM_BUFFER, buffer );
qglBufferDataARB( GL_UNIFORM_BUFFER, numBytes, NULL, GL_STREAM_DRAW_ARB );
qglBindBufferARB( GL_UNIFORM_BUFFER, 0);
apiObject = reinterpret_cast< void * >( buffer );
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "joint buffer alloc %p, api %p (%i joints)\n", this, GetAPIObject(), GetNumJoints() );
}
// copy the data
if ( joints != NULL ) {
Update( joints, numAllocJoints );
}
return !allocationFailed;
}
void Gui_FillBackgroundBuffer()
{
GLfloat x0 = 0.0f;
GLfloat y0 = 0.0f;
GLfloat x1 = screen_info.w;
GLfloat y1 = screen_info.h;
GLfloat *v, backgroundArray[32];
GLfloat color[4] = {0.0f, 0.0f, 0.0f, 0.5f};
v = backgroundArray;
*v++ = x0; *v++ = y0;
vec4_copy(v, color);
v += 4;
*v++ = 0.0f; *v++ = 0.0f;
*v++ = x1; *v++ = y0;
vec4_copy(v, color);
v += 4;
*v++ = 1.0f; *v++ = 0.0f;
*v++ = x1; *v++ = y1;
vec4_copy(v, color);
v += 4;
*v++ = 1.0f; *v++ = 1.0f;
*v++ = x0; *v++ = y1;
vec4_copy(v, color);
v += 4;
*v++ = 0.0f; *v++ = 1.0f;
qglBindBufferARB(GL_ARRAY_BUFFER, backgroundBuffer);
qglBufferDataARB(GL_ARRAY_BUFFER, sizeof(GLfloat[32]), backgroundArray, GL_STATIC_DRAW);
}
/*
* R_DiscardVBOElemData
*/
void R_DiscardVBOElemData( mesh_vbo_t *vbo )
{
GLenum elem_usage = VBO_ELEM_USAGE_FOR_TAG(vbo->tag);
if( vbo->elemId ) {
RB_BindElementArrayBuffer( vbo->elemId );
qglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, vbo->elemBufferSize, NULL, elem_usage );
}
}
/*
* R_DiscardVBOVertexData
*/
void R_DiscardVBOVertexData( mesh_vbo_t *vbo )
{
GLenum array_usage = VBO_ARRAY_USAGE_FOR_TAG(vbo->tag);
if( vbo->vertexId ) {
RB_BindArrayBuffer( vbo->vertexId );
qglBufferDataARB( GL_ARRAY_BUFFER_ARB, vbo->arrayBufferSize, NULL, array_usage );
}
}
/*
============
R_CreateVBO
============
*/
VBO_t *R_CreateVBO(const char *name, byte * vertexes, int vertexesSize, vboUsage_t usage)
{
VBO_t *vbo;
int glUsage;
switch (usage)
{
case VBO_USAGE_STATIC:
glUsage = GL_STATIC_DRAW_ARB;
break;
case VBO_USAGE_DYNAMIC:
glUsage = GL_DYNAMIC_DRAW_ARB;
break;
default:
Com_Error(ERR_FATAL, "bad vboUsage_t given: %i", usage);
return NULL;
}
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateVBO: \"%s\" is too long\n", name);
}
if ( tr.numVBOs == MAX_VBOS ) {
ri.Error( ERR_DROP, "R_CreateVBO: MAX_VBOS hit\n");
}
// make sure the render thread is stopped
R_SyncRenderThread();
vbo = tr.vbos[tr.numVBOs] = ri.Hunk_Alloc(sizeof(*vbo), h_low);
tr.numVBOs++;
memset(vbo, 0, sizeof(*vbo));
Q_strncpyz(vbo->name, name, sizeof(vbo->name));
vbo->vertexesSize = vertexesSize;
qglGenBuffersARB(1, &vbo->vertexesVBO);
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo->vertexesVBO);
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, vertexesSize, vertexes, glUsage);
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glState.currentVBO = NULL;
GL_CheckErrors();
return vbo;
}
/*
============
R_CreateIBO
============
*/
IBO_t *R_CreateIBO(const char *name, byte * indexes, int indexesSize, vboUsage_t usage)
{
IBO_t *ibo;
int glUsage;
switch (usage)
{
case VBO_USAGE_STATIC:
glUsage = GL_STATIC_DRAW_ARB;
break;
case VBO_USAGE_DYNAMIC:
glUsage = GL_DYNAMIC_DRAW_ARB;
break;
default:
Com_Error(ERR_FATAL, "bad vboUsage_t given: %i", usage);
return NULL;
}
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateIBO: \"%s\" is too long", name);
}
if ( tr.numIBOs == MAX_IBOS ) {
ri.Error( ERR_DROP, "R_CreateIBO: MAX_IBOS hit");
}
R_IssuePendingRenderCommands();
ibo = tr.ibos[tr.numIBOs] = ri.Hunk_Alloc(sizeof(*ibo), h_low);
tr.numIBOs++;
Q_strncpyz(ibo->name, name, sizeof(ibo->name));
ibo->indexesSize = indexesSize;
qglGenBuffersARB(1, &ibo->indexesVBO);
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, ibo->indexesVBO);
qglBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, indexesSize, indexes, glUsage);
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
glState.currentIBO = NULL;
GL_CheckErrors();
return ibo;
}
/*
==============
idVertexCache::ActuallyFree
==============
*/
void idVertexCache::ActuallyFree(vertCache_t *block)
{
if (!block) {
common->Error("idVertexCache Free: NULL pointer");
}
if (block->user) {
// let the owner know we have purged it
*block->user = NULL;
block->user = NULL;
}
// temp blocks are in a shared space that won't be freed
if (block->tag != TAG_TEMP) {
staticAllocTotal -= block->size;
staticCountTotal--;
if (block->vbo) {
#if 0 // this isn't really necessary, it will be reused soon enough
// filling with zero length data is the equivalent of freeing
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, block->vbo);
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, 0, 0, GL_DYNAMIC_DRAW_ARB);
#endif
} else if (block->virtMem) {
Mem_Free(block->virtMem);
block->virtMem = NULL;
}
}
block->tag = TAG_FREE; // mark as free
// unlink stick it back on the free list
block->next->prev = block->prev;
block->prev->next = block->next;
#if 1
// stick it on the front of the free list so it will be reused immediately
block->next = freeStaticHeaders.next;
block->prev = &freeStaticHeaders;
#else
// stick it on the back of the free list so it won't be reused soon (just for debugging)
block->next = &freeStaticHeaders;
block->prev = freeStaticHeaders.prev;
#endif
block->next->prev = block;
block->prev->next = block;
}
/*
========================
idIndexBuffer::AllocBufferObject
========================
*/
bool idIndexBuffer::AllocBufferObject( const void * data, int allocSize ) {
assert( apiObject == NULL );
assert_16_byte_aligned( data );
if ( allocSize <= 0 ) {
idLib::Error( "idIndexBuffer::AllocBufferObject: allocSize = %i", allocSize );
}
size = allocSize;
bool allocationFailed = false;
int numBytes = GetAllocedSize();
// clear out any previous error
qglGetError();
GLuint bufferObject = 0xFFFF;
qglGenBuffersARB( 1, & bufferObject );
if ( bufferObject == 0xFFFF ) {
GLenum error = qglGetError();
idLib::FatalError( "idIndexBuffer::AllocBufferObject: failed - GL_Error %d", error );
}
qglBindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, bufferObject );
// these are rewritten every frame
qglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, numBytes, NULL, bufferUsage );
apiObject = reinterpret_cast< void * >( bufferObject );
GLenum err = qglGetError();
if ( err == GL_OUT_OF_MEMORY ) {
idLib::Warning( "idIndexBuffer:AllocBufferObject: allocation failed" );
allocationFailed = true;
}
if ( r_showBuffers.GetBool() ) {
idLib::Printf( "index buffer alloc %p, api %p (%i bytes)\n", this, GetAPIObject(), GetSize() );
}
// copy the data
if ( data != NULL ) {
Update( data, allocSize );
}
return !allocationFailed;
}
/*
============
R_CreateVBO2
============
*/
VBO_t *R_CreateVBO2(const char *name, int numVertexes, srfVert_t * verts, unsigned int stateBits, vboUsage_t usage)
{
VBO_t *vbo;
int i;
byte *data;
int dataSize;
int dataOfs;
int glUsage;
switch (usage)
{
case VBO_USAGE_STATIC:
glUsage = GL_STATIC_DRAW_ARB;
break;
case VBO_USAGE_DYNAMIC:
glUsage = GL_DYNAMIC_DRAW_ARB;
break;
default:
Com_Error(ERR_FATAL, "bad vboUsage_t given: %i", usage);
return NULL;
}
if(!numVertexes)
return NULL;
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateVBO2: \"%s\" is too long", name);
}
if ( tr.numVBOs == MAX_VBOS ) {
ri.Error( ERR_DROP, "R_CreateVBO2: MAX_VBOS hit");
}
R_IssuePendingRenderCommands();
vbo = tr.vbos[tr.numVBOs] = ri.Hunk_Alloc(sizeof(*vbo), h_low);
tr.numVBOs++;
memset(vbo, 0, sizeof(*vbo));
Q_strncpyz(vbo->name, name, sizeof(vbo->name));
if (usage == VBO_USAGE_STATIC)
{
// since these vertex attributes are never altered, interleave them
vbo->ofs_xyz = 0;
dataSize = sizeof(verts[0].xyz);
if(stateBits & ATTR_NORMAL)
{
vbo->ofs_normal = dataSize;
dataSize += sizeof(uint8_t) * 4;
}
#ifdef USE_VERT_TANGENT_SPACE
if(stateBits & ATTR_TANGENT)
{
vbo->ofs_tangent = dataSize;
dataSize += sizeof(uint8_t) * 4;
}
#endif
if(stateBits & ATTR_TEXCOORD)
{
vbo->ofs_st = dataSize;
dataSize += sizeof(verts[0].st);
}
if(stateBits & ATTR_LIGHTCOORD)
{
vbo->ofs_lightmap = dataSize;
dataSize += sizeof(verts[0].lightmap);
}
if(stateBits & ATTR_COLOR)
{
vbo->ofs_vertexcolor = dataSize;
dataSize += sizeof(verts[0].vertexColors);
}
if(stateBits & ATTR_LIGHTDIRECTION)
{
vbo->ofs_lightdir = dataSize;
dataSize += sizeof(verts[0].lightdir);
}
vbo->stride_xyz = dataSize;
vbo->stride_normal = dataSize;
#ifdef USE_VERT_TANGENT_SPACE
vbo->stride_tangent = dataSize;
#endif
vbo->stride_st = dataSize;
vbo->stride_lightmap = dataSize;
vbo->stride_vertexcolor = dataSize;
vbo->stride_lightdir = dataSize;
// create VBO
dataSize *= numVertexes;
data = ri.Hunk_AllocateTempMemory(dataSize);
dataOfs = 0;
//ri.Printf(PRINT_ALL, "CreateVBO: %d, %d %d %d %d %d, %d %d %d %d %d\n", dataSize, vbo->ofs_xyz, vbo->ofs_normal, vbo->ofs_st, vbo->ofs_lightmap, vbo->ofs_vertexcolor,
//vbo->stride_xyz, vbo->stride_normal, vbo->stride_st, vbo->stride_lightmap, vbo->stride_vertexcolor);
for (i = 0; i < numVertexes; i++)
{
// xyz
memcpy(data + dataOfs, &verts[i].xyz, sizeof(verts[i].xyz));
dataOfs += sizeof(verts[i].xyz);
// normal
if(stateBits & ATTR_NORMAL)
{
uint8_t *p = data + dataOfs;
p[0] = (uint8_t)(verts[i].normal[0] * 127.5f + 128.0f);
p[1] = (uint8_t)(verts[i].normal[1] * 127.5f + 128.0f);
p[2] = (uint8_t)(verts[i].normal[2] * 127.5f + 128.0f);
p[3] = 0;
dataOfs += sizeof(uint8_t) * 4;
}
#ifdef USE_VERT_TANGENT_SPACE
// tangent
if(stateBits & ATTR_TANGENT)
{
vec3_t nxt;
uint8_t *p = data + dataOfs;
CrossProduct(verts[i].normal, verts[i].tangent, nxt);
p[0] = (uint8_t)(verts[i].tangent[0] * 127.5f + 128.0f);
p[1] = (uint8_t)(verts[i].tangent[1] * 127.5f + 128.0f);
p[2] = (uint8_t)(verts[i].tangent[2] * 127.5f + 128.0f);
p[3] = (uint8_t)(verts[i].tangent[3] * 127.5f + 128.0f);
dataOfs += sizeof(uint8_t) * 4;
}
#endif
// vertex texcoords
if(stateBits & ATTR_TEXCOORD)
{
memcpy(data + dataOfs, &verts[i].st, sizeof(verts[i].st));
dataOfs += sizeof(verts[i].st);
}
// feed vertex lightmap texcoords
if(stateBits & ATTR_LIGHTCOORD)
{
memcpy(data + dataOfs, &verts[i].lightmap, sizeof(verts[i].lightmap));
dataOfs += sizeof(verts[i].lightmap);
}
// feed vertex colors
if(stateBits & ATTR_COLOR)
{
memcpy(data + dataOfs, &verts[i].vertexColors, sizeof(verts[i].vertexColors));
dataOfs += sizeof(verts[i].vertexColors);
}
// feed vertex light directions
if(stateBits & ATTR_LIGHTDIRECTION)
{
memcpy(data + dataOfs, &verts[i].lightdir, sizeof(verts[i].lightdir));
dataOfs += sizeof(verts[i].lightdir);
}
}
}
else
{
// since these vertex attributes may be changed, put them in flat arrays
dataSize = sizeof(verts[0].xyz);
if(stateBits & ATTR_NORMAL)
{
dataSize += sizeof(uint8_t) * 4;
}
#ifdef USE_VERT_TANGENT_SPACE
if(stateBits & ATTR_TANGENT)
{
dataSize += sizeof(uint8_t) * 4;
}
#endif
if(stateBits & ATTR_TEXCOORD)
{
dataSize += sizeof(verts[0].st);
}
if(stateBits & ATTR_LIGHTCOORD)
{
dataSize += sizeof(verts[0].lightmap);
}
if(stateBits & ATTR_COLOR)
{
dataSize += sizeof(verts[0].vertexColors);
}
if(stateBits & ATTR_LIGHTDIRECTION)
{
dataSize += sizeof(verts[0].lightdir);
}
// create VBO
dataSize *= numVertexes;
data = ri.Hunk_AllocateTempMemory(dataSize);
dataOfs = 0;
vbo->ofs_xyz = 0;
vbo->ofs_normal = 0;
#ifdef USE_VERT_TANGENT_SPACE
vbo->ofs_tangent = 0;
#endif
vbo->ofs_st = 0;
vbo->ofs_lightmap = 0;
vbo->ofs_vertexcolor = 0;
vbo->ofs_lightdir = 0;
vbo->stride_xyz = sizeof(verts[0].xyz);
vbo->stride_normal = sizeof(uint8_t) * 4;
#ifdef USE_VERT_TANGENT_SPACE
vbo->stride_tangent = sizeof(uint8_t) * 4;
#endif
vbo->stride_vertexcolor = sizeof(verts[0].vertexColors);
vbo->stride_st = sizeof(verts[0].st);
vbo->stride_lightmap = sizeof(verts[0].lightmap);
vbo->stride_lightdir = sizeof(verts[0].lightdir);
//ri.Printf(PRINT_ALL, "2CreateVBO: %d, %d %d %d %d %d, %d %d %d %d %d\n", dataSize, vbo->ofs_xyz, vbo->ofs_normal, vbo->ofs_st, vbo->ofs_lightmap, vbo->ofs_vertexcolor,
//vbo->stride_xyz, vbo->stride_normal, vbo->stride_st, vbo->stride_lightmap, vbo->stride_vertexcolor);
// xyz
for (i = 0; i < numVertexes; i++)
{
memcpy(data + dataOfs, &verts[i].xyz, sizeof(verts[i].xyz));
dataOfs += sizeof(verts[i].xyz);
}
// normal
if(stateBits & ATTR_NORMAL)
{
vbo->ofs_normal = dataOfs;
for (i = 0; i < numVertexes; i++)
{
uint8_t *p = data + dataOfs;
p[0] = (uint8_t)(verts[i].normal[0] * 127.5f + 128.0f);
p[1] = (uint8_t)(verts[i].normal[1] * 127.5f + 128.0f);
p[2] = (uint8_t)(verts[i].normal[2] * 127.5f + 128.0f);
p[3] = 0;
dataOfs += sizeof(uint8_t) * 4;
}
}
#ifdef USE_VERT_TANGENT_SPACE
// tangent
if(stateBits & ATTR_TANGENT)
{
vbo->ofs_tangent = dataOfs;
for (i = 0; i < numVertexes; i++)
{
vec3_t nxt;
uint8_t *p = data + dataOfs;
CrossProduct(verts[i].normal, verts[i].tangent, nxt);
p[0] = (uint8_t)(verts[i].tangent[0] * 127.5f + 128.0f);
p[1] = (uint8_t)(verts[i].tangent[1] * 127.5f + 128.0f);
p[2] = (uint8_t)(verts[i].tangent[2] * 127.5f + 128.0f);
p[3] = (uint8_t)(verts[i].tangent[3] * 127.5f + 128.0f);
dataOfs += sizeof(uint8_t) * 4;
}
}
#endif
// vertex texcoords
if(stateBits & ATTR_TEXCOORD)
{
vbo->ofs_st = dataOfs;
for (i = 0; i < numVertexes; i++)
{
memcpy(data + dataOfs, &verts[i].st, sizeof(verts[i].st));
dataOfs += sizeof(verts[i].st);
}
}
// feed vertex lightmap texcoords
if(stateBits & ATTR_LIGHTCOORD)
{
vbo->ofs_lightmap = dataOfs;
for (i = 0; i < numVertexes; i++)
{
memcpy(data + dataOfs, &verts[i].lightmap, sizeof(verts[i].lightmap));
dataOfs += sizeof(verts[i].lightmap);
}
}
// feed vertex colors
if(stateBits & ATTR_COLOR)
{
vbo->ofs_vertexcolor = dataOfs;
for (i = 0; i < numVertexes; i++)
{
memcpy(data + dataOfs, &verts[i].vertexColors, sizeof(verts[i].vertexColors));
dataOfs += sizeof(verts[i].vertexColors);
}
}
// feed vertex lightdirs
if(stateBits & ATTR_LIGHTDIRECTION)
{
vbo->ofs_lightdir = dataOfs;
for (i = 0; i < numVertexes; i++)
{
memcpy(data + dataOfs, &verts[i].lightdir, sizeof(verts[i].lightdir));
dataOfs += sizeof(verts[i].lightdir);
}
}
}
vbo->vertexesSize = dataSize;
qglGenBuffersARB(1, &vbo->vertexesVBO);
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo->vertexesVBO);
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, dataSize, data, glUsage);
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
glState.currentVBO = NULL;
GL_CheckErrors();
ri.Hunk_FreeTempMemory(data);
return vbo;
}
/*
==============
RB_UpdateVBOs
Adapted from Tess_UpdateVBOs from xreal
Update the default VBO to replace the client side vertex arrays
==============
*/
void RB_UpdateVBOs(unsigned int attribBits)
{
GLimp_LogComment("--- RB_UpdateVBOs ---\n");
backEnd.pc.c_dynamicVboDraws++;
// update the default VBO
if(tess.numVertexes > 0 && tess.numVertexes <= SHADER_MAX_VERTEXES)
{
R_BindVBO(tess.vbo);
// orphan old buffer so we don't stall on it
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->vertexesSize, NULL, GL_DYNAMIC_DRAW_ARB);
if(attribBits & ATTR_BITS)
{
if(attribBits & ATTR_POSITION)
{
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_xyz, tess.numVertexes * sizeof(tess.xyz[0]));
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_xyz, tess.numVertexes * sizeof(tess.xyz[0]), tess.xyz);
}
if(attribBits & ATTR_TEXCOORD || attribBits & ATTR_LIGHTCOORD)
{
// these are interleaved, so we update both if either need it
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_st, tess.numVertexes * sizeof(tess.texCoords[0][0]) * 2);
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_st, tess.numVertexes * sizeof(tess.texCoords[0][0]) * 2, tess.texCoords);
}
if(attribBits & ATTR_NORMAL)
{
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_normal, tess.numVertexes * sizeof(tess.normal[0]));
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_normal, tess.numVertexes * sizeof(tess.normal[0]), tess.normal);
}
#ifdef USE_VERT_TANGENT_SPACE
if(attribBits & ATTR_TANGENT)
{
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_tangent, tess.numVertexes * sizeof(tess.tangent[0]));
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_tangent, tess.numVertexes * sizeof(tess.tangent[0]), tess.tangent);
}
#endif
if(attribBits & ATTR_COLOR)
{
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_vertexcolor, tess.numVertexes * sizeof(tess.vertexColors[0]));
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_vertexcolor, tess.numVertexes * sizeof(tess.vertexColors[0]), tess.vertexColors);
}
if(attribBits & ATTR_LIGHTDIRECTION)
{
//ri.Printf(PRINT_ALL, "offset %d, size %d\n", tess.vbo->ofs_lightdir, tess.numVertexes * sizeof(tess.lightdir[0]));
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_lightdir, tess.numVertexes * sizeof(tess.lightdir[0]), tess.lightdir);
}
}
else
{
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_xyz, tess.numVertexes * sizeof(tess.xyz[0]), tess.xyz);
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_st, tess.numVertexes * sizeof(tess.texCoords[0][0]) * 2, tess.texCoords);
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_normal, tess.numVertexes * sizeof(tess.normal[0]), tess.normal);
#ifdef USE_VERT_TANGENT_SPACE
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_tangent, tess.numVertexes * sizeof(tess.tangent[0]), tess.tangent);
#endif
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_vertexcolor, tess.numVertexes * sizeof(tess.vertexColors[0]), tess.vertexColors);
qglBufferSubDataARB(GL_ARRAY_BUFFER_ARB, tess.vbo->ofs_lightdir, tess.numVertexes * sizeof(tess.lightdir[0]), tess.lightdir);
}
}
// update the default IBO
if(tess.numIndexes > 0 && tess.numIndexes <= SHADER_MAX_INDEXES)
{
R_BindIBO(tess.ibo);
// orphan old buffer so we don't stall on it
qglBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, tess.ibo->indexesSize, NULL, GL_DYNAMIC_DRAW_ARB);
qglBufferSubDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0, tess.numIndexes * sizeof(tess.indexes[0]), tess.indexes);
}
}
/*
* R_CreateMeshVBO
*
* Create two static buffer objects: vertex buffer and elements buffer, the real
* data is uploaded by calling R_UploadVBOVertexData and R_UploadVBOElemData.
*
* Tag allows vertex buffer objects to be grouped and released simultaneously.
*/
mesh_vbo_t *R_CreateMeshVBO( void *owner, int numVerts, int numElems, int numInstances,
vattribmask_t vattribs, vbo_tag_t tag, vattribmask_t halfFloatVattribs )
{
int i;
size_t size;
GLuint vbo_id;
vbohandle_t *vboh = NULL;
mesh_vbo_t *vbo = NULL;
GLenum array_usage = VBO_ARRAY_USAGE_FOR_TAG(tag);
GLenum elem_usage = VBO_ELEM_USAGE_FOR_TAG(tag);
size_t vertexSize;
vattribbit_t lmattrbit;
if( !glConfig.ext.vertex_buffer_object )
return NULL;
if( !r_free_vbohandles )
return NULL;
if( !glConfig.ext.half_float_vertex ) {
halfFloatVattribs = 0;
}
else {
if( !(halfFloatVattribs & VATTRIB_POSITION_BIT) ) {
halfFloatVattribs &= ~(VATTRIB_AUTOSPRITE_BIT);
}
halfFloatVattribs &= ~VATTRIB_COLORS_BITS;
halfFloatVattribs &= ~VATTRIB_BONES_BITS;
// TODO: convert quaternion component of instance_t to half-float
// when uploading instances data
halfFloatVattribs &= ~VATTRIB_INSTANCES_BITS;
}
vboh = r_free_vbohandles;
vbo = &r_mesh_vbo[vboh->index];
memset( vbo, 0, sizeof( *vbo ) );
// vertex data
vertexSize = 0;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_POSITION_BIT, halfFloatVattribs) * 4;
// normals data
if( vattribs & VATTRIB_NORMAL_BIT )
{
assert( !(vertexSize & 3) );
vbo->normalsOffset = vertexSize;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_NORMAL_BIT, halfFloatVattribs) * 4;
}
// s-vectors (tangent vectors)
if( vattribs & VATTRIB_SVECTOR_BIT )
{
assert( !(vertexSize & 3) );
vbo->sVectorsOffset = vertexSize;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_SVECTOR_BIT, halfFloatVattribs) * 4;
}
// texture coordinates
if( vattribs & VATTRIB_TEXCOORDS_BIT )
{
assert( !(vertexSize & 3) );
vbo->stOffset = vertexSize;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_TEXCOORDS_BIT, halfFloatVattribs) * 2;
}
// lightmap texture coordinates
lmattrbit = VATTRIB_LMCOORDS0_BIT;
for( i = 0; i < MAX_LIGHTMAPS/2; i++ ) {
if( !(vattribs & lmattrbit) ) {
break;
}
assert( !(vertexSize & 3) );
vbo->lmstOffset[i] = vertexSize;
vbo->lmstSize[i] = vattribs & VATTRIB_LMCOORDS0_BIT<<1 ? 4 : 2;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_LMCOORDS0_BIT, halfFloatVattribs) * vbo->lmstSize[i];
lmattrbit = ( vattribbit_t )( ( vattribmask_t )lmattrbit << 2 );
}
// vertex colors
if( vattribs & VATTRIB_COLOR0_BIT )
{
assert( !(vertexSize & 3) );
vbo->colorsOffset[0] = vertexSize;
vertexSize += sizeof( int );
}
// bones data for skeletal animation
if( (vattribs & VATTRIB_BONES_BITS) == VATTRIB_BONES_BITS ) {
assert( SKM_MAX_WEIGHTS == 4 );
assert( !(vertexSize & 3) );
vbo->bonesIndicesOffset = vertexSize;
vertexSize += sizeof( int );
assert( !(vertexSize & 3) );
vbo->bonesWeightsOffset = vertexSize;
vertexSize += sizeof( int );
}
// autosprites
// FIXME: autosprite2 requires waaaay too much data for such a trivial
// transformation..
if( (vattribs & VATTRIB_AUTOSPRITE_BIT) == VATTRIB_AUTOSPRITE_BIT ) {
assert( !(vertexSize & 3) );
vbo->spritePointsOffset = vertexSize;
vertexSize += FLOAT_VATTRIB_SIZE(VATTRIB_AUTOSPRITE_BIT, halfFloatVattribs) * 4;
}
size = vertexSize * numVerts;
// instances data
if( ( (vattribs & VATTRIB_INSTANCES_BITS) == VATTRIB_INSTANCES_BITS ) &&
numInstances && glConfig.ext.instanced_arrays ) {
assert( !(vertexSize & 3) );
vbo->instancesOffset = size;
size += numInstances * sizeof( GLfloat ) * 8;
}
// pre-allocate vertex buffer
vbo_id = 0;
qglGenBuffersARB( 1, &vbo_id );
if( !vbo_id )
goto error;
vbo->vertexId = vbo_id;
RB_BindArrayBuffer( vbo->vertexId );
qglBufferDataARB( GL_ARRAY_BUFFER_ARB, size, NULL, array_usage );
if( qglGetError () == GL_OUT_OF_MEMORY )
goto error;
vbo->arrayBufferSize = size;
// pre-allocate elements buffer
vbo_id = 0;
qglGenBuffersARB( 1, &vbo_id );
if( !vbo_id )
goto error;
vbo->elemId = vbo_id;
size = numElems * sizeof( elem_t );
RB_BindElementArrayBuffer( vbo->elemId );
qglBufferDataARB( GL_ELEMENT_ARRAY_BUFFER_ARB, size, NULL, elem_usage );
if( qglGetError () == GL_OUT_OF_MEMORY )
goto error;
vbo->elemBufferSize = size;
r_free_vbohandles = vboh->next;
// link to the list of active vbo handles
vboh->prev = &r_vbohandles_headnode;
vboh->next = r_vbohandles_headnode.next;
vboh->next->prev = vboh;
vboh->prev->next = vboh;
r_num_active_vbos++;
vbo->registrationSequence = rsh.registrationSequence;
vbo->vertexSize = vertexSize;
vbo->numVerts = numVerts;
vbo->numElems = numElems;
vbo->owner = owner;
vbo->index = vboh->index + 1;
vbo->tag = tag;
vbo->halfFloatAttribs = halfFloatVattribs;
return vbo;
error:
if( vbo )
R_ReleaseMeshVBO( vbo );
RB_BindArrayBuffer( 0 );
RB_BindElementArrayBuffer( 0 );
return NULL;
}
/**
* Draws simple colored rectangle with given parameters.
*/
void Gui_DrawRect(const GLfloat &x, const GLfloat &y,
const GLfloat &width, const GLfloat &height,
const float colorUpperLeft[], const float colorUpperRight[],
const float colorLowerLeft[], const float colorLowerRight[],
const int &blendMode,
const GLuint texture)
{
switch(blendMode)
{
case BM_HIDE:
return;
case BM_MULTIPLY:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE);
break;
case BM_SIMPLE_SHADE:
qglBlendFunc(GL_ONE_MINUS_SRC_COLOR, GL_ONE_MINUS_SRC_ALPHA);
break;
case BM_SCREEN:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
default:
case BM_OPAQUE:
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
};
GLfloat x0 = x;
GLfloat y0 = y + height;
GLfloat x1 = x + width;
GLfloat y1 = y;
GLfloat *v, rectArray[32];
v = rectArray;
*v++ = x0; *v++ = y0;
*v++ = 0.0f; *v++ = 0.0f;
vec4_copy(v, colorUpperLeft);
v += 4;
*v++ = x1; *v++ = y0;
*v++ = 1.0f; *v++ = 0.0f;
vec4_copy(v, colorUpperRight);
v += 4;
*v++ = x1; *v++ = y1;
*v++ = 1.0f; *v++ = 1.0f;
vec4_copy(v, colorLowerRight);
v += 4;
*v++ = x0; *v++ = y1;
*v++ = 0.0f; *v++ = 1.0f;
vec4_copy(v, colorLowerLeft);
if(qglIsTexture(texture))
{
qglBindTexture(GL_TEXTURE_2D, texture);
}
else
{
BindWhiteTexture();
}
qglBindBufferARB(GL_ARRAY_BUFFER, rectBuffer);
qglBufferDataARB(GL_ARRAY_BUFFER, sizeof(GLfloat[32]), rectArray, GL_DYNAMIC_DRAW);
qglVertexPointer(2, GL_FLOAT, 8 * sizeof(GLfloat), (void *)0);
qglTexCoordPointer(2, GL_FLOAT, 8 * sizeof(GLfloat), (void *)sizeof(GLfloat[2]));
qglColorPointer(4, GL_FLOAT, 8 * sizeof(GLfloat), (void *)sizeof(GLfloat[4]));
qglDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
/*
===========
idVertexCache::Alloc
===========
*/
void idVertexCache::Alloc(void *data, int size, vertCache_t **buffer, bool indexBuffer)
{
vertCache_t *block;
if (size <= 0) {
common->Error("idVertexCache::Alloc: size = %i\n", size);
}
// if we can't find anything, it will be NULL
*buffer = NULL;
// if we don't have any remaining unused headers, allocate some more
if (freeStaticHeaders.next == &freeStaticHeaders) {
for (int i = 0; i < EXPAND_HEADERS; i++) {
block = headerAllocator.Alloc();
block->next = freeStaticHeaders.next;
block->prev = &freeStaticHeaders;
block->next->prev = block;
block->prev->next = block;
if (!virtualMemory) {
qglGenBuffersARB(1, & block->vbo);
}
}
}
// move it from the freeStaticHeaders list to the staticHeaders list
block = freeStaticHeaders.next;
block->next->prev = block->prev;
block->prev->next = block->next;
block->next = staticHeaders.next;
block->prev = &staticHeaders;
block->next->prev = block;
block->prev->next = block;
block->size = size;
block->offset = 0;
block->tag = TAG_USED;
// save data for debugging
staticAllocThisFrame += block->size;
staticCountThisFrame++;
staticCountTotal++;
staticAllocTotal += block->size;
// this will be set to zero when it is purged
block->user = buffer;
*buffer = block;
// allocation doesn't imply used-for-drawing, because at level
// load time lots of things may be created, but they aren't
// referenced by the GPU yet, and can be purged if needed.
block->frameUsed = currentFrame - NUM_VERTEX_FRAMES;
block->indexBuffer = indexBuffer;
// copy the data
if (block->vbo) {
if (indexBuffer) {
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, block->vbo);
qglBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, (GLsizeiptrARB)size, data, GL_STATIC_DRAW_ARB);
} else {
qglBindBufferARB(GL_ARRAY_BUFFER_ARB, block->vbo);
if (allocatingTempBuffer) {
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, (GLsizeiptrARB)size, data, GL_STREAM_DRAW_ARB);
} else {
qglBufferDataARB(GL_ARRAY_BUFFER_ARB, (GLsizeiptrARB)size, data, GL_STATIC_DRAW_ARB);
}
}
} else {
block->virtMem = Mem_Alloc(size);
SIMDProcessor->Memcpy(block->virtMem, data, size);
}
}
/*
============
R_CreateIBO2
============
*/
IBO_t *R_CreateIBO2(const char *name, int numTriangles, srfTriangle_t * triangles, vboUsage_t usage)
{
IBO_t *ibo;
int i, j;
byte *indexes;
int indexesSize;
int indexesOfs;
srfTriangle_t *tri;
glIndex_t index;
int glUsage;
switch (usage)
{
case VBO_USAGE_STATIC:
glUsage = GL_STATIC_DRAW_ARB;
break;
case VBO_USAGE_DYNAMIC:
glUsage = GL_DYNAMIC_DRAW_ARB;
break;
default:
Com_Error(ERR_FATAL, "bad vboUsage_t given: %i", usage);
return NULL;
}
if(!numTriangles)
return NULL;
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateIBO2: \"%s\" is too long\n", name);
}
if ( tr.numIBOs == MAX_IBOS ) {
ri.Error( ERR_DROP, "R_CreateIBO2: MAX_IBOS hit\n");
}
// make sure the render thread is stopped
R_SyncRenderThread();
ibo = tr.ibos[tr.numIBOs] = ri.Hunk_Alloc(sizeof(*ibo), h_low);
tr.numIBOs++;
Q_strncpyz(ibo->name, name, sizeof(ibo->name));
indexesSize = numTriangles * 3 * sizeof(int);
indexes = ri.Hunk_AllocateTempMemory(indexesSize);
indexesOfs = 0;
for(i = 0, tri = triangles; i < numTriangles; i++, tri++)
{
for(j = 0; j < 3; j++)
{
index = tri->indexes[j];
memcpy(indexes + indexesOfs, &index, sizeof(glIndex_t));
indexesOfs += sizeof(glIndex_t);
}
}
ibo->indexesSize = indexesSize;
qglGenBuffersARB(1, &ibo->indexesVBO);
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, ibo->indexesVBO);
qglBufferDataARB(GL_ELEMENT_ARRAY_BUFFER_ARB, indexesSize, indexes, glUsage);
qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
glState.currentIBO = NULL;
GL_CheckErrors();
ri.Hunk_FreeTempMemory(indexes);
return ibo;
}