/*
** GL_SetDefaultState
*/
void GL_SetDefaultState( void )
{
qglClearDepth( 1.0f );
qglCullFace(GL_FRONT);
qglColor4f (1,1,1,1);
GL_BindNullTextures();
if (glRefConfig.framebufferObject)
GL_BindNullFramebuffers();
qglEnable(GL_TEXTURE_2D);
GL_TextureMode( r_textureMode->string );
//qglShadeModel( GL_SMOOTH );
qglDepthFunc( GL_LEQUAL );
//
// make sure our GL state vector is set correctly
//
glState.glStateBits = GLS_DEPTHTEST_DISABLE | GLS_DEPTHMASK_TRUE;
glState.storedGlState = 0;
glState.faceCulling = CT_TWO_SIDED;
glState.faceCullFront = qtrue;
GL_BindNullProgram();
if (glRefConfig.vertexArrayObject)
qglBindVertexArray(0);
qglBindBuffer(GL_ARRAY_BUFFER, 0);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glState.currentVao = NULL;
glState.vertexAttribsEnabled = 0;
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglDepthMask( GL_TRUE );
qglDisable( GL_DEPTH_TEST );
qglEnable( GL_SCISSOR_TEST );
qglDisable( GL_CULL_FACE );
qglDisable( GL_BLEND );
if (glRefConfig.seamlessCubeMap)
qglEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
// GL_POLYGON_OFFSET_FILL will be glEnable()d when this is used
qglPolygonOffset( r_offsetFactor->value, r_offsetUnits->value );
qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); // FIXME: get color of sky
}
/*
============
R_BindVao
============
*/
void R_BindVao(vao_t * vao)
{
if(!vao)
{
//R_BindNullVao();
ri.Error(ERR_DROP, "R_BindVao: NULL vao");
return;
}
if(r_logFile->integer)
{
// don't just call LogComment, or we will get a call to va() every frame!
GLimp_LogComment(va("--- R_BindVao( %s ) ---\n", vao->name));
}
if(glState.currentVao != vao)
{
glState.currentVao = vao;
glState.vertexAttribsInterpolation = 0;
glState.vertexAnimation = qfalse;
backEnd.pc.c_vaoBinds++;
if (glRefConfig.vertexArrayObject)
{
qglBindVertexArray(vao->vao);
// why you no save GL_ELEMENT_ARRAY_BUFFER binding, Intel?
if (1)
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
// tess VAO always has buffers bound
if (vao == tess.vao)
qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
}
else
{
qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
// tess VAO doesn't have vertex pointers set until data is uploaded
if (vao != tess.vao)
Vao_SetVertexPointers(vao);
}
}
}
/*
============
R_BindNullVao
============
*/
void R_BindNullVao(void)
{
GLimp_LogComment("--- R_BindNullVao ---\n");
if(glState.currentVao)
{
if (glRefConfig.vertexArrayObject)
{
qglBindVertexArray(0);
// why you no save GL_ELEMENT_ARRAY_BUFFER binding, Intel?
if (1) qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
else
{
qglBindBuffer(GL_ARRAY_BUFFER, 0);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}
glState.currentVao = NULL;
}
GL_CheckErrors();
}
/*
============
R_CreateVao2
============
*/
vao_t *R_CreateVao2(const char *name, int numVertexes, srfVert_t *verts, int numIndexes, glIndex_t *indexes)
{
vao_t *vao;
int i;
byte *data;
int dataSize;
int dataOfs;
int glUsage = GL_STATIC_DRAW;
if(!numVertexes || !numIndexes)
return NULL;
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateVao2: \"%s\" is too long", name);
}
if ( tr.numVaos == MAX_VAOS ) {
ri.Error( ERR_DROP, "R_CreateVao2: MAX_VAOS hit");
}
R_IssuePendingRenderCommands();
vao = tr.vaos[tr.numVaos] = ri.Hunk_Alloc(sizeof(*vao), h_low);
tr.numVaos++;
memset(vao, 0, sizeof(*vao));
Q_strncpyz(vao->name, name, sizeof(vao->name));
// since these vertex attributes are never altered, interleave them
vao->attribs[ATTR_INDEX_POSITION ].enabled = 1;
vao->attribs[ATTR_INDEX_NORMAL ].enabled = 1;
#ifdef USE_VERT_TANGENT_SPACE
vao->attribs[ATTR_INDEX_TANGENT ].enabled = 1;
#endif
vao->attribs[ATTR_INDEX_TEXCOORD ].enabled = 1;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].enabled = 1;
vao->attribs[ATTR_INDEX_COLOR ].enabled = 1;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].enabled = 1;
vao->attribs[ATTR_INDEX_POSITION ].count = 3;
vao->attribs[ATTR_INDEX_NORMAL ].count = 4;
vao->attribs[ATTR_INDEX_TANGENT ].count = 4;
vao->attribs[ATTR_INDEX_TEXCOORD ].count = 2;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].count = 2;
vao->attribs[ATTR_INDEX_COLOR ].count = 4;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].count = 4;
vao->attribs[ATTR_INDEX_POSITION ].type = GL_FLOAT;
vao->attribs[ATTR_INDEX_NORMAL ].type = glRefConfig.packedNormalDataType;
vao->attribs[ATTR_INDEX_TANGENT ].type = glRefConfig.packedNormalDataType;
vao->attribs[ATTR_INDEX_TEXCOORD ].type = glRefConfig.packedTexcoordDataType;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].type = glRefConfig.packedTexcoordDataType;
vao->attribs[ATTR_INDEX_COLOR ].type = glRefConfig.packedColorDataType;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].type = glRefConfig.packedNormalDataType;
vao->attribs[ATTR_INDEX_POSITION ].normalized = GL_FALSE;
vao->attribs[ATTR_INDEX_NORMAL ].normalized = GL_TRUE;
vao->attribs[ATTR_INDEX_TANGENT ].normalized = GL_TRUE;
vao->attribs[ATTR_INDEX_TEXCOORD ].normalized = GL_FALSE;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].normalized = GL_FALSE;
vao->attribs[ATTR_INDEX_COLOR ].normalized = GL_FALSE;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].normalized = GL_TRUE;
vao->attribs[ATTR_INDEX_POSITION ].offset = 0; dataSize = sizeof(verts[0].xyz);
vao->attribs[ATTR_INDEX_NORMAL ].offset = dataSize; dataSize += sizeof(uint32_t);
#ifdef USE_VERT_TANGENT_SPACE
vao->attribs[ATTR_INDEX_TANGENT ].offset = dataSize; dataSize += sizeof(uint32_t);
#endif
vao->attribs[ATTR_INDEX_TEXCOORD ].offset = dataSize; dataSize += glRefConfig.packedTexcoordDataSize;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].offset = dataSize; dataSize += glRefConfig.packedTexcoordDataSize;
vao->attribs[ATTR_INDEX_COLOR ].offset = dataSize; dataSize += glRefConfig.packedColorDataSize;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].offset = dataSize; dataSize += sizeof(uint32_t);
vao->attribs[ATTR_INDEX_POSITION ].stride = dataSize;
vao->attribs[ATTR_INDEX_NORMAL ].stride = dataSize;
vao->attribs[ATTR_INDEX_TANGENT ].stride = dataSize;
vao->attribs[ATTR_INDEX_TEXCOORD ].stride = dataSize;
vao->attribs[ATTR_INDEX_LIGHTCOORD ].stride = dataSize;
vao->attribs[ATTR_INDEX_COLOR ].stride = dataSize;
vao->attribs[ATTR_INDEX_LIGHTDIRECTION].stride = dataSize;
if (glRefConfig.vertexArrayObject)
{
qglGenVertexArrays(1, &vao->vao);
qglBindVertexArray(vao->vao);
}
// create VBO
dataSize *= numVertexes;
data = ri.Hunk_AllocateTempMemory(dataSize);
dataOfs = 0;
for (i = 0; i < numVertexes; i++)
{
// xyz
memcpy(data + dataOfs, &verts[i].xyz, sizeof(verts[i].xyz));
dataOfs += sizeof(verts[i].xyz);
// normal
dataOfs += R_VaoPackNormal(data + dataOfs, verts[i].normal);
#ifdef USE_VERT_TANGENT_SPACE
// tangent
dataOfs += R_VaoPackTangent(data + dataOfs, verts[i].tangent);
#endif
// texcoords
dataOfs += R_VaoPackTexCoord(data + dataOfs, verts[i].st);
// lightmap texcoords
dataOfs += R_VaoPackTexCoord(data + dataOfs, verts[i].lightmap);
// colors
dataOfs += R_VaoPackColors(data + dataOfs, verts[i].vertexColors);
// light directions
dataOfs += R_VaoPackNormal(data + dataOfs, verts[i].lightdir);
}
vao->vertexesSize = dataSize;
qglGenBuffers(1, &vao->vertexesVBO);
qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
qglBufferData(GL_ARRAY_BUFFER, vao->vertexesSize, data, glUsage);
// create IBO
vao->indexesSize = numIndexes * sizeof(glIndex_t);
qglGenBuffers(1, &vao->indexesIBO);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
qglBufferData(GL_ELEMENT_ARRAY_BUFFER, vao->indexesSize, indexes, glUsage);
Vao_SetVertexPointers(vao);
glState.currentVao = vao;
GL_CheckErrors();
ri.Hunk_FreeTempMemory(data);
return vao;
}
/*
============
R_CreateVao
============
*/
vao_t *R_CreateVao(const char *name, byte *vertexes, int vertexesSize, byte *indexes, int indexesSize, vaoUsage_t usage)
{
vao_t *vao;
int glUsage;
switch (usage)
{
case VAO_USAGE_STATIC:
glUsage = GL_STATIC_DRAW;
break;
case VAO_USAGE_DYNAMIC:
glUsage = GL_DYNAMIC_DRAW;
break;
default:
Com_Error(ERR_FATAL, "bad vaoUsage_t given: %i", usage);
return NULL;
}
if(strlen(name) >= MAX_QPATH)
{
ri.Error(ERR_DROP, "R_CreateVao: \"%s\" is too long", name);
}
if ( tr.numVaos == MAX_VAOS ) {
ri.Error( ERR_DROP, "R_CreateVao: MAX_VAOS hit");
}
R_IssuePendingRenderCommands();
vao = tr.vaos[tr.numVaos] = ri.Hunk_Alloc(sizeof(*vao), h_low);
tr.numVaos++;
memset(vao, 0, sizeof(*vao));
Q_strncpyz(vao->name, name, sizeof(vao->name));
if (glRefConfig.vertexArrayObject)
{
qglGenVertexArrays(1, &vao->vao);
qglBindVertexArray(vao->vao);
}
vao->vertexesSize = vertexesSize;
qglGenBuffers(1, &vao->vertexesVBO);
qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
qglBufferData(GL_ARRAY_BUFFER, vertexesSize, vertexes, glUsage);
vao->indexesSize = indexesSize;
qglGenBuffers(1, &vao->indexesIBO);
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
qglBufferData(GL_ELEMENT_ARRAY_BUFFER, indexesSize, indexes, glUsage);
glState.currentVao = vao;
GL_CheckErrors();
return vao;
}
