mirror of
https://github.com/UberGames/lilium-voyager.git
synced 2024-12-13 13:40:56 +00:00
c65d2c2657
Remove support for draw range elements, multi draw arrays, world vao creation, surface merging.
966 lines
29 KiB
C
966 lines
29 KiB
C
/*
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===========================================================================
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Copyright (C) 2007-2009 Robert Beckebans <trebor_7@users.sourceforge.net>
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This file is part of XreaL source code.
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XreaL source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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XreaL source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with XreaL source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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// tr_vbo.c
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#include "tr_local.h"
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void R_VaoPackTangent(int16_t *out, vec4_t v)
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{
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out[0] = v[0] * 32767.0f + (v[0] > 0.0f ? 0.5f : -0.5f);
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out[1] = v[1] * 32767.0f + (v[1] > 0.0f ? 0.5f : -0.5f);
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out[2] = v[2] * 32767.0f + (v[2] > 0.0f ? 0.5f : -0.5f);
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out[3] = v[3] * 32767.0f + (v[3] > 0.0f ? 0.5f : -0.5f);
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}
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void R_VaoPackNormal(int16_t *out, vec3_t v)
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{
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out[0] = v[0] * 32767.0f + (v[0] > 0.0f ? 0.5f : -0.5f);
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out[1] = v[1] * 32767.0f + (v[1] > 0.0f ? 0.5f : -0.5f);
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out[2] = v[2] * 32767.0f + (v[2] > 0.0f ? 0.5f : -0.5f);
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out[3] = 0;
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}
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void R_VaoPackColor(uint16_t *out, vec4_t c)
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{
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out[0] = c[0] * 65535.0f + 0.5f;
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out[1] = c[1] * 65535.0f + 0.5f;
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out[2] = c[2] * 65535.0f + 0.5f;
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out[3] = c[3] * 65535.0f + 0.5f;
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}
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void R_VaoUnpackTangent(vec4_t v, int16_t *pack)
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{
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v[0] = pack[0] / 32767.0f;
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v[1] = pack[1] / 32767.0f;
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v[2] = pack[2] / 32767.0f;
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v[3] = pack[3] / 32767.0f;
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}
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void R_VaoUnpackNormal(vec3_t v, int16_t *pack)
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{
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v[0] = pack[0] / 32767.0f;
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v[1] = pack[1] / 32767.0f;
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v[2] = pack[2] / 32767.0f;
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}
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void Vao_SetVertexPointers(vao_t *vao)
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{
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int attribIndex;
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// set vertex pointers
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for (attribIndex = 0; attribIndex < ATTR_INDEX_COUNT; attribIndex++)
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{
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uint32_t attribBit = 1 << attribIndex;
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vaoAttrib_t *vAtb = &vao->attribs[attribIndex];
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if (vAtb->enabled)
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{
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qglVertexAttribPointer(attribIndex, vAtb->count, vAtb->type, vAtb->normalized, vAtb->stride, BUFFER_OFFSET(vAtb->offset));
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if (glRefConfig.vertexArrayObject || !(glState.vertexAttribsEnabled & attribBit))
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qglEnableVertexAttribArray(attribIndex);
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if (!glRefConfig.vertexArrayObject || vao == tess.vao)
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glState.vertexAttribsEnabled |= attribBit;
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}
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else
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{
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// don't disable vertex attribs when using vertex array objects
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// Vao_SetVertexPointers is only called during init when using VAOs, and vertex attribs start disabled anyway
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if (!glRefConfig.vertexArrayObject && (glState.vertexAttribsEnabled & attribBit))
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qglDisableVertexAttribArray(attribIndex);
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if (!glRefConfig.vertexArrayObject || vao == tess.vao)
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glState.vertexAttribsEnabled &= ~attribBit;
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}
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}
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}
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/*
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============
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R_CreateVao
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============
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*/
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vao_t *R_CreateVao(const char *name, byte *vertexes, int vertexesSize, byte *indexes, int indexesSize, vaoUsage_t usage)
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{
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vao_t *vao;
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int glUsage;
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switch (usage)
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{
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case VAO_USAGE_STATIC:
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glUsage = GL_STATIC_DRAW;
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break;
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case VAO_USAGE_DYNAMIC:
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glUsage = GL_DYNAMIC_DRAW;
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break;
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default:
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Com_Error(ERR_FATAL, "bad vaoUsage_t given: %i", usage);
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return NULL;
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}
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if(strlen(name) >= MAX_QPATH)
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{
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ri.Error(ERR_DROP, "R_CreateVao: \"%s\" is too long", name);
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}
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if ( tr.numVaos == MAX_VAOS ) {
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ri.Error( ERR_DROP, "R_CreateVao: MAX_VAOS hit");
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}
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R_IssuePendingRenderCommands();
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vao = tr.vaos[tr.numVaos] = ri.Hunk_Alloc(sizeof(*vao), h_low);
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tr.numVaos++;
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memset(vao, 0, sizeof(*vao));
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Q_strncpyz(vao->name, name, sizeof(vao->name));
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if (glRefConfig.vertexArrayObject)
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{
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qglGenVertexArrays(1, &vao->vao);
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qglBindVertexArray(vao->vao);
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}
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vao->vertexesSize = vertexesSize;
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qglGenBuffers(1, &vao->vertexesVBO);
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qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
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qglBufferData(GL_ARRAY_BUFFER, vertexesSize, vertexes, glUsage);
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vao->indexesSize = indexesSize;
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qglGenBuffers(1, &vao->indexesIBO);
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qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
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qglBufferData(GL_ELEMENT_ARRAY_BUFFER, indexesSize, indexes, glUsage);
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glState.currentVao = vao;
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GL_CheckErrors();
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return vao;
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}
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/*
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============
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R_CreateVao2
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============
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*/
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vao_t *R_CreateVao2(const char *name, int numVertexes, srfVert_t *verts, int numIndexes, glIndex_t *indexes)
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{
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vao_t *vao;
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int i;
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byte *data;
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int dataSize;
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int dataOfs;
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int glUsage = GL_STATIC_DRAW;
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if(!numVertexes || !numIndexes)
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return NULL;
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if(strlen(name) >= MAX_QPATH)
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{
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ri.Error(ERR_DROP, "R_CreateVao2: \"%s\" is too long", name);
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}
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if ( tr.numVaos == MAX_VAOS ) {
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ri.Error( ERR_DROP, "R_CreateVao2: MAX_VAOS hit");
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}
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R_IssuePendingRenderCommands();
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vao = tr.vaos[tr.numVaos] = ri.Hunk_Alloc(sizeof(*vao), h_low);
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tr.numVaos++;
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memset(vao, 0, sizeof(*vao));
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Q_strncpyz(vao->name, name, sizeof(vao->name));
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// since these vertex attributes are never altered, interleave them
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vao->attribs[ATTR_INDEX_POSITION ].enabled = 1;
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vao->attribs[ATTR_INDEX_NORMAL ].enabled = 1;
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vao->attribs[ATTR_INDEX_TANGENT ].enabled = 1;
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vao->attribs[ATTR_INDEX_TEXCOORD ].enabled = 1;
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].enabled = 1;
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vao->attribs[ATTR_INDEX_COLOR ].enabled = 1;
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].enabled = 1;
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vao->attribs[ATTR_INDEX_POSITION ].count = 3;
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vao->attribs[ATTR_INDEX_NORMAL ].count = 4;
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vao->attribs[ATTR_INDEX_TANGENT ].count = 4;
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vao->attribs[ATTR_INDEX_TEXCOORD ].count = 2;
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].count = 2;
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vao->attribs[ATTR_INDEX_COLOR ].count = 4;
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].count = 4;
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vao->attribs[ATTR_INDEX_POSITION ].type = GL_FLOAT;
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vao->attribs[ATTR_INDEX_NORMAL ].type = GL_SHORT;
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vao->attribs[ATTR_INDEX_TANGENT ].type = GL_SHORT;
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vao->attribs[ATTR_INDEX_TEXCOORD ].type = GL_FLOAT;
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].type = GL_FLOAT;
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vao->attribs[ATTR_INDEX_COLOR ].type = GL_UNSIGNED_SHORT;
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].type = GL_SHORT;
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vao->attribs[ATTR_INDEX_POSITION ].normalized = GL_FALSE;
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vao->attribs[ATTR_INDEX_NORMAL ].normalized = GL_TRUE;
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vao->attribs[ATTR_INDEX_TANGENT ].normalized = GL_TRUE;
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vao->attribs[ATTR_INDEX_TEXCOORD ].normalized = GL_FALSE;
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].normalized = GL_FALSE;
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vao->attribs[ATTR_INDEX_COLOR ].normalized = GL_TRUE;
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].normalized = GL_TRUE;
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vao->attribs[ATTR_INDEX_POSITION ].offset = 0; dataSize = sizeof(verts[0].xyz);
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vao->attribs[ATTR_INDEX_NORMAL ].offset = dataSize; dataSize += sizeof(verts[0].normal);
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vao->attribs[ATTR_INDEX_TANGENT ].offset = dataSize; dataSize += sizeof(verts[0].tangent);
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vao->attribs[ATTR_INDEX_TEXCOORD ].offset = dataSize; dataSize += sizeof(verts[0].st);
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].offset = dataSize; dataSize += sizeof(verts[0].lightmap);
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vao->attribs[ATTR_INDEX_COLOR ].offset = dataSize; dataSize += sizeof(verts[0].color);
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].offset = dataSize; dataSize += sizeof(verts[0].lightdir);
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vao->attribs[ATTR_INDEX_POSITION ].stride = dataSize;
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vao->attribs[ATTR_INDEX_NORMAL ].stride = dataSize;
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vao->attribs[ATTR_INDEX_TANGENT ].stride = dataSize;
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vao->attribs[ATTR_INDEX_TEXCOORD ].stride = dataSize;
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vao->attribs[ATTR_INDEX_LIGHTCOORD ].stride = dataSize;
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vao->attribs[ATTR_INDEX_COLOR ].stride = dataSize;
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vao->attribs[ATTR_INDEX_LIGHTDIRECTION].stride = dataSize;
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if (glRefConfig.vertexArrayObject)
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{
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qglGenVertexArrays(1, &vao->vao);
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qglBindVertexArray(vao->vao);
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}
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// create VBO
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dataSize *= numVertexes;
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data = ri.Hunk_AllocateTempMemory(dataSize);
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dataOfs = 0;
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for (i = 0; i < numVertexes; i++)
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{
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// xyz
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memcpy(data + dataOfs, &verts[i].xyz, sizeof(verts[i].xyz));
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dataOfs += sizeof(verts[i].xyz);
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// normal
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memcpy(data + dataOfs, &verts[i].normal, sizeof(verts[i].normal));
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dataOfs += sizeof(verts[i].normal);
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// tangent
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memcpy(data + dataOfs, &verts[i].tangent, sizeof(verts[i].tangent));
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dataOfs += sizeof(verts[i].tangent);
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// texcoords
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memcpy(data + dataOfs, &verts[i].st, sizeof(verts[i].st));
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dataOfs += sizeof(verts[i].st);
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// lightmap texcoords
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memcpy(data + dataOfs, &verts[i].lightmap, sizeof(verts[i].lightmap));
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dataOfs += sizeof(verts[i].lightmap);
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// colors
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memcpy(data + dataOfs, &verts[i].color, sizeof(verts[i].color));
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dataOfs += sizeof(verts[i].color);
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// light directions
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memcpy(data + dataOfs, &verts[i].lightdir, sizeof(verts[i].lightdir));
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dataOfs += sizeof(verts[i].lightdir);
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}
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vao->vertexesSize = dataSize;
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qglGenBuffers(1, &vao->vertexesVBO);
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qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
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qglBufferData(GL_ARRAY_BUFFER, vao->vertexesSize, data, glUsage);
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// create IBO
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vao->indexesSize = numIndexes * sizeof(glIndex_t);
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qglGenBuffers(1, &vao->indexesIBO);
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qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
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qglBufferData(GL_ELEMENT_ARRAY_BUFFER, vao->indexesSize, indexes, glUsage);
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Vao_SetVertexPointers(vao);
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glState.currentVao = vao;
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GL_CheckErrors();
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ri.Hunk_FreeTempMemory(data);
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return vao;
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}
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/*
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============
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R_BindVao
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============
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*/
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void R_BindVao(vao_t * vao)
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{
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if(!vao)
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{
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//R_BindNullVao();
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ri.Error(ERR_DROP, "R_BindVao: NULL vao");
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return;
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}
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if(r_logFile->integer)
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{
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// don't just call LogComment, or we will get a call to va() every frame!
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GLimp_LogComment(va("--- R_BindVao( %s ) ---\n", vao->name));
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}
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if(glState.currentVao != vao)
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{
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glState.currentVao = vao;
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glState.vertexAttribsInterpolation = 0;
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glState.vertexAnimation = qfalse;
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backEnd.pc.c_vaoBinds++;
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if (glRefConfig.vertexArrayObject)
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{
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qglBindVertexArray(vao->vao);
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// Intel Graphics doesn't save GL_ELEMENT_ARRAY_BUFFER binding with VAO binding.
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if (glRefConfig.intelGraphics || vao == tess.vao)
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qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
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// tess VAO always has buffers bound
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if (vao == tess.vao)
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qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
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}
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else
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{
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qglBindBuffer(GL_ARRAY_BUFFER, vao->vertexesVBO);
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qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vao->indexesIBO);
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// tess VAO doesn't have vertex pointers set until data is uploaded
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if (vao != tess.vao)
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Vao_SetVertexPointers(vao);
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}
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}
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}
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/*
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============
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R_BindNullVao
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============
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*/
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void R_BindNullVao(void)
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{
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GLimp_LogComment("--- R_BindNullVao ---\n");
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if(glState.currentVao)
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{
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if (glRefConfig.vertexArrayObject)
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{
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qglBindVertexArray(0);
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// why you no save GL_ELEMENT_ARRAY_BUFFER binding, Intel?
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if (1) qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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else
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{
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qglBindBuffer(GL_ARRAY_BUFFER, 0);
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qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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glState.currentVao = NULL;
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}
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GL_CheckErrors();
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}
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/*
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============
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R_InitVaos
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============
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*/
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void R_InitVaos(void)
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{
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int vertexesSize, indexesSize;
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int offset;
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ri.Printf(PRINT_ALL, "------- R_InitVaos -------\n");
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tr.numVaos = 0;
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vertexesSize = sizeof(tess.xyz[0]);
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vertexesSize += sizeof(tess.normal[0]);
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vertexesSize += sizeof(tess.tangent[0]);
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vertexesSize += sizeof(tess.color[0]);
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vertexesSize += sizeof(tess.texCoords[0]);
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vertexesSize += sizeof(tess.lightCoords[0]);
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vertexesSize += sizeof(tess.lightdir[0]);
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vertexesSize *= SHADER_MAX_VERTEXES;
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indexesSize = sizeof(tess.indexes[0]) * SHADER_MAX_INDEXES;
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tess.vao = R_CreateVao("tessVertexArray_VAO", NULL, vertexesSize, NULL, indexesSize, VAO_USAGE_DYNAMIC);
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offset = 0;
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tess.vao->attribs[ATTR_INDEX_POSITION ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_NORMAL ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_TANGENT ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_TEXCOORD ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_COLOR ].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].enabled = 1;
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tess.vao->attribs[ATTR_INDEX_POSITION ].count = 3;
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tess.vao->attribs[ATTR_INDEX_NORMAL ].count = 4;
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tess.vao->attribs[ATTR_INDEX_TANGENT ].count = 4;
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tess.vao->attribs[ATTR_INDEX_TEXCOORD ].count = 2;
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tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].count = 2;
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tess.vao->attribs[ATTR_INDEX_COLOR ].count = 4;
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tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].count = 4;
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tess.vao->attribs[ATTR_INDEX_POSITION ].type = GL_FLOAT;
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tess.vao->attribs[ATTR_INDEX_NORMAL ].type = GL_SHORT;
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tess.vao->attribs[ATTR_INDEX_TANGENT ].type = GL_SHORT;
|
|
tess.vao->attribs[ATTR_INDEX_TEXCOORD ].type = GL_FLOAT;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].type = GL_FLOAT;
|
|
tess.vao->attribs[ATTR_INDEX_COLOR ].type = GL_UNSIGNED_SHORT;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].type = GL_SHORT;
|
|
|
|
tess.vao->attribs[ATTR_INDEX_POSITION ].normalized = GL_FALSE;
|
|
tess.vao->attribs[ATTR_INDEX_NORMAL ].normalized = GL_TRUE;
|
|
tess.vao->attribs[ATTR_INDEX_TANGENT ].normalized = GL_TRUE;
|
|
tess.vao->attribs[ATTR_INDEX_TEXCOORD ].normalized = GL_FALSE;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].normalized = GL_FALSE;
|
|
tess.vao->attribs[ATTR_INDEX_COLOR ].normalized = GL_TRUE;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].normalized = GL_TRUE;
|
|
|
|
tess.vao->attribs[ATTR_INDEX_POSITION ].offset = offset; offset += sizeof(tess.xyz[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_NORMAL ].offset = offset; offset += sizeof(tess.normal[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_TANGENT ].offset = offset; offset += sizeof(tess.tangent[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_TEXCOORD ].offset = offset; offset += sizeof(tess.texCoords[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].offset = offset; offset += sizeof(tess.lightCoords[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_COLOR ].offset = offset; offset += sizeof(tess.color[0]) * SHADER_MAX_VERTEXES;
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].offset = offset;
|
|
|
|
tess.vao->attribs[ATTR_INDEX_POSITION ].stride = sizeof(tess.xyz[0]);
|
|
tess.vao->attribs[ATTR_INDEX_NORMAL ].stride = sizeof(tess.normal[0]);
|
|
tess.vao->attribs[ATTR_INDEX_TANGENT ].stride = sizeof(tess.tangent[0]);
|
|
tess.vao->attribs[ATTR_INDEX_TEXCOORD ].stride = sizeof(tess.texCoords[0]);
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTCOORD ].stride = sizeof(tess.lightCoords[0]);
|
|
tess.vao->attribs[ATTR_INDEX_COLOR ].stride = sizeof(tess.color[0]);
|
|
tess.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].stride = sizeof(tess.lightdir[0]);
|
|
|
|
tess.attribPointers[ATTR_INDEX_POSITION] = tess.xyz;
|
|
tess.attribPointers[ATTR_INDEX_NORMAL] = tess.normal;
|
|
tess.attribPointers[ATTR_INDEX_TANGENT] = tess.tangent;
|
|
tess.attribPointers[ATTR_INDEX_TEXCOORD] = tess.texCoords;
|
|
tess.attribPointers[ATTR_INDEX_LIGHTCOORD] = tess.lightCoords;
|
|
tess.attribPointers[ATTR_INDEX_COLOR] = tess.color;
|
|
tess.attribPointers[ATTR_INDEX_LIGHTDIRECTION] = tess.lightdir;
|
|
|
|
Vao_SetVertexPointers(tess.vao);
|
|
|
|
R_BindNullVao();
|
|
|
|
VaoCache_Init();
|
|
|
|
GL_CheckErrors();
|
|
}
|
|
|
|
/*
|
|
============
|
|
R_ShutdownVaos
|
|
============
|
|
*/
|
|
void R_ShutdownVaos(void)
|
|
{
|
|
int i;
|
|
vao_t *vao;
|
|
|
|
ri.Printf(PRINT_ALL, "------- R_ShutdownVaos -------\n");
|
|
|
|
R_BindNullVao();
|
|
|
|
for(i = 0; i < tr.numVaos; i++)
|
|
{
|
|
vao = tr.vaos[i];
|
|
|
|
if(vao->vao)
|
|
qglDeleteVertexArrays(1, &vao->vao);
|
|
|
|
if(vao->vertexesVBO)
|
|
{
|
|
qglDeleteBuffers(1, &vao->vertexesVBO);
|
|
}
|
|
|
|
if(vao->indexesIBO)
|
|
{
|
|
qglDeleteBuffers(1, &vao->indexesIBO);
|
|
}
|
|
}
|
|
|
|
tr.numVaos = 0;
|
|
}
|
|
|
|
/*
|
|
============
|
|
R_VaoList_f
|
|
============
|
|
*/
|
|
void R_VaoList_f(void)
|
|
{
|
|
int i;
|
|
vao_t *vao;
|
|
int vertexesSize = 0;
|
|
int indexesSize = 0;
|
|
|
|
ri.Printf(PRINT_ALL, " size name\n");
|
|
ri.Printf(PRINT_ALL, "----------------------------------------------------------\n");
|
|
|
|
for(i = 0; i < tr.numVaos; i++)
|
|
{
|
|
vao = tr.vaos[i];
|
|
|
|
ri.Printf(PRINT_ALL, "%d.%02d MB %s\n", vao->vertexesSize / (1024 * 1024),
|
|
(vao->vertexesSize % (1024 * 1024)) * 100 / (1024 * 1024), vao->name);
|
|
|
|
vertexesSize += vao->vertexesSize;
|
|
}
|
|
|
|
for(i = 0; i < tr.numVaos; i++)
|
|
{
|
|
vao = tr.vaos[i];
|
|
|
|
ri.Printf(PRINT_ALL, "%d.%02d MB %s\n", vao->indexesSize / (1024 * 1024),
|
|
(vao->indexesSize % (1024 * 1024)) * 100 / (1024 * 1024), vao->name);
|
|
|
|
indexesSize += vao->indexesSize;
|
|
}
|
|
|
|
ri.Printf(PRINT_ALL, " %i total VAOs\n", tr.numVaos);
|
|
ri.Printf(PRINT_ALL, " %d.%02d MB total vertices memory\n", vertexesSize / (1024 * 1024),
|
|
(vertexesSize % (1024 * 1024)) * 100 / (1024 * 1024));
|
|
ri.Printf(PRINT_ALL, " %d.%02d MB total triangle indices memory\n", indexesSize / (1024 * 1024),
|
|
(indexesSize % (1024 * 1024)) * 100 / (1024 * 1024));
|
|
}
|
|
|
|
|
|
/*
|
|
==============
|
|
RB_UpdateTessVao
|
|
|
|
Adapted from Tess_UpdateVBOs from xreal
|
|
|
|
Update the default VAO to replace the client side vertex arrays
|
|
==============
|
|
*/
|
|
void RB_UpdateTessVao(unsigned int attribBits)
|
|
{
|
|
GLimp_LogComment("--- RB_UpdateTessVao ---\n");
|
|
|
|
backEnd.pc.c_dynamicVaoDraws++;
|
|
|
|
// update the default VAO
|
|
if(tess.numVertexes > 0 && tess.numVertexes <= SHADER_MAX_VERTEXES && tess.numIndexes > 0 && tess.numIndexes <= SHADER_MAX_INDEXES)
|
|
{
|
|
int attribIndex;
|
|
int attribUpload;
|
|
|
|
R_BindVao(tess.vao);
|
|
|
|
// orphan old vertex buffer so we don't stall on it
|
|
qglBufferData(GL_ARRAY_BUFFER, tess.vao->vertexesSize, NULL, GL_DYNAMIC_DRAW);
|
|
|
|
// if nothing to set, set everything
|
|
if(!(attribBits & ATTR_BITS))
|
|
attribBits = ATTR_BITS;
|
|
|
|
attribUpload = attribBits;
|
|
|
|
for (attribIndex = 0; attribIndex < ATTR_INDEX_COUNT; attribIndex++)
|
|
{
|
|
uint32_t attribBit = 1 << attribIndex;
|
|
vaoAttrib_t *vAtb = &tess.vao->attribs[attribIndex];
|
|
|
|
if (attribUpload & attribBit)
|
|
{
|
|
// note: tess has a VBO where stride == size
|
|
qglBufferSubData(GL_ARRAY_BUFFER, vAtb->offset, tess.numVertexes * vAtb->stride, tess.attribPointers[attribIndex]);
|
|
}
|
|
|
|
if (attribBits & attribBit)
|
|
{
|
|
if (!glRefConfig.vertexArrayObject)
|
|
qglVertexAttribPointer(attribIndex, vAtb->count, vAtb->type, vAtb->normalized, vAtb->stride, BUFFER_OFFSET(vAtb->offset));
|
|
|
|
if (!(glState.vertexAttribsEnabled & attribBit))
|
|
{
|
|
qglEnableVertexAttribArray(attribIndex);
|
|
glState.vertexAttribsEnabled |= attribBit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((glState.vertexAttribsEnabled & attribBit))
|
|
{
|
|
qglDisableVertexAttribArray(attribIndex);
|
|
glState.vertexAttribsEnabled &= ~attribBit;
|
|
}
|
|
}
|
|
}
|
|
|
|
// orphan old index buffer so we don't stall on it
|
|
qglBufferData(GL_ELEMENT_ARRAY_BUFFER, tess.vao->indexesSize, NULL, GL_DYNAMIC_DRAW);
|
|
|
|
qglBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, tess.numIndexes * sizeof(tess.indexes[0]), tess.indexes);
|
|
}
|
|
}
|
|
|
|
// FIXME: This sets a limit of 65536 verts/262144 indexes per static surface
|
|
// This is higher than the old vq3 limits but is worth noting
|
|
#define VAOCACHE_QUEUE_MAX_SURFACES (1 << 10)
|
|
#define VAOCACHE_QUEUE_MAX_VERTEXES (1 << 16)
|
|
#define VAOCACHE_QUEUE_MAX_INDEXES (VAOCACHE_QUEUE_MAX_VERTEXES * 4)
|
|
|
|
typedef struct queuedSurface_s
|
|
{
|
|
srfVert_t *vertexes;
|
|
int numVerts;
|
|
glIndex_t *indexes;
|
|
int numIndexes;
|
|
}
|
|
queuedSurface_t;
|
|
|
|
static struct
|
|
{
|
|
queuedSurface_t surfaces[VAOCACHE_QUEUE_MAX_SURFACES];
|
|
int numSurfaces;
|
|
|
|
srfVert_t vertexes[VAOCACHE_QUEUE_MAX_VERTEXES];
|
|
int vertexCommitSize;
|
|
|
|
glIndex_t indexes[VAOCACHE_QUEUE_MAX_INDEXES];
|
|
int indexCommitSize;
|
|
}
|
|
vcq;
|
|
|
|
#define VAOCACHE_MAX_SURFACES (1 << 16)
|
|
#define VAOCACHE_MAX_BATCHES (1 << 10)
|
|
|
|
// srfVert_t is 60 bytes
|
|
// assuming each vert is referenced 4 times, need 16 bytes (4 glIndex_t) per vert
|
|
// -> need about 4/15ths the space for indexes as vertexes
|
|
#define VAOCACHE_VERTEX_BUFFER_SIZE (16 * 1024 * 1024)
|
|
#define VAOCACHE_INDEX_BUFFER_SIZE (5 * 1024 * 1024)
|
|
|
|
typedef struct buffered_s
|
|
{
|
|
void *data;
|
|
int size;
|
|
int bufferOffset;
|
|
}
|
|
buffered_t;
|
|
|
|
static struct
|
|
{
|
|
vao_t *vao;
|
|
buffered_t surfaceIndexSets[VAOCACHE_MAX_SURFACES];
|
|
int numSurfaces;
|
|
|
|
int batchLengths[VAOCACHE_MAX_BATCHES];
|
|
int numBatches;
|
|
|
|
int vertexOffset;
|
|
int indexOffset;
|
|
}
|
|
vc;
|
|
|
|
void VaoCache_Commit(void)
|
|
{
|
|
buffered_t *indexSet;
|
|
int *batchLength;
|
|
queuedSurface_t *surf, *end = vcq.surfaces + vcq.numSurfaces;
|
|
|
|
R_BindVao(vc.vao);
|
|
|
|
// Search for a matching batch
|
|
// FIXME: Use faster search
|
|
indexSet = vc.surfaceIndexSets;
|
|
batchLength = vc.batchLengths;
|
|
for (; batchLength < vc.batchLengths + vc.numBatches; batchLength++)
|
|
{
|
|
if (*batchLength == vcq.numSurfaces)
|
|
{
|
|
buffered_t *indexSet2 = indexSet;
|
|
for (surf = vcq.surfaces; surf < end; surf++, indexSet2++)
|
|
{
|
|
if (surf->indexes != indexSet2->data || (surf->numIndexes * sizeof(glIndex_t)) != indexSet2->size)
|
|
break;
|
|
}
|
|
|
|
if (surf == end)
|
|
break;
|
|
}
|
|
|
|
indexSet += *batchLength;
|
|
}
|
|
|
|
// If found, use it
|
|
if (indexSet < vc.surfaceIndexSets + vc.numSurfaces)
|
|
{
|
|
tess.firstIndex = indexSet->bufferOffset / sizeof(glIndex_t);
|
|
//ri.Printf(PRINT_ALL, "firstIndex %d numIndexes %d as %d\n", tess.firstIndex, tess.numIndexes, batchLength - vc.batchLengths);
|
|
//ri.Printf(PRINT_ALL, "vc.numSurfaces %d vc.numBatches %d\n", vc.numSurfaces, vc.numBatches);
|
|
}
|
|
// If not, rebuffer the batch
|
|
// FIXME: keep track of the vertexes so we don't have to reupload them every time
|
|
else
|
|
{
|
|
srfVert_t *dstVertex = vcq.vertexes;
|
|
glIndex_t *dstIndex = vcq.indexes;
|
|
|
|
batchLength = vc.batchLengths + vc.numBatches;
|
|
*batchLength = vcq.numSurfaces;
|
|
vc.numBatches++;
|
|
|
|
tess.firstIndex = vc.indexOffset / sizeof(glIndex_t);
|
|
vcq.vertexCommitSize = 0;
|
|
vcq.indexCommitSize = 0;
|
|
for (surf = vcq.surfaces; surf < end; surf++)
|
|
{
|
|
glIndex_t *srcIndex = surf->indexes;
|
|
int vertexesSize = surf->numVerts * sizeof(srfVert_t);
|
|
int indexesSize = surf->numIndexes * sizeof(glIndex_t);
|
|
int i, indexOffset = (vc.vertexOffset + vcq.vertexCommitSize) / sizeof(srfVert_t);
|
|
|
|
Com_Memcpy(dstVertex, surf->vertexes, vertexesSize);
|
|
dstVertex += surf->numVerts;
|
|
|
|
vcq.vertexCommitSize += vertexesSize;
|
|
|
|
indexSet = vc.surfaceIndexSets + vc.numSurfaces;
|
|
indexSet->data = surf->indexes;
|
|
indexSet->size = indexesSize;
|
|
indexSet->bufferOffset = vc.indexOffset + vcq.indexCommitSize;
|
|
vc.numSurfaces++;
|
|
|
|
for (i = 0; i < surf->numIndexes; i++)
|
|
*dstIndex++ = *srcIndex++ + indexOffset;
|
|
|
|
vcq.indexCommitSize += indexesSize;
|
|
}
|
|
|
|
//ri.Printf(PRINT_ALL, "committing %d to %d, %d to %d as %d\n", vcq.vertexCommitSize, vc.vertexOffset, vcq.indexCommitSize, vc.indexOffset, batchLength - vc.batchLengths);
|
|
|
|
if (vcq.vertexCommitSize)
|
|
{
|
|
qglBindBuffer(GL_ARRAY_BUFFER, vc.vao->vertexesVBO);
|
|
qglBufferSubData(GL_ARRAY_BUFFER, vc.vertexOffset, vcq.vertexCommitSize, vcq.vertexes);
|
|
vc.vertexOffset += vcq.vertexCommitSize;
|
|
}
|
|
|
|
if (vcq.indexCommitSize)
|
|
{
|
|
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vc.vao->indexesIBO);
|
|
qglBufferSubData(GL_ELEMENT_ARRAY_BUFFER, vc.indexOffset, vcq.indexCommitSize, vcq.indexes);
|
|
vc.indexOffset += vcq.indexCommitSize;
|
|
}
|
|
}
|
|
}
|
|
|
|
void VaoCache_Init(void)
|
|
{
|
|
srfVert_t vert;
|
|
int dataSize;
|
|
|
|
vc.vao = R_CreateVao("VaoCache", NULL, VAOCACHE_VERTEX_BUFFER_SIZE, NULL, VAOCACHE_INDEX_BUFFER_SIZE, VAO_USAGE_DYNAMIC);
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].enabled = 1;
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].enabled = 1;
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].count = 3;
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].count = 2;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].count = 2;
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].count = 4;
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].count = 4;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].count = 4;
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].count = 4;
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].type = GL_FLOAT;
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].type = GL_FLOAT;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].type = GL_FLOAT;
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].type = GL_SHORT;
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].type = GL_SHORT;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].type = GL_SHORT;
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].type = GL_UNSIGNED_SHORT;
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].normalized = GL_FALSE;
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].normalized = GL_FALSE;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].normalized = GL_FALSE;
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].normalized = GL_TRUE;
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].normalized = GL_TRUE;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].normalized = GL_TRUE;
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].normalized = GL_TRUE;
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].offset = 0; dataSize = sizeof(vert.xyz);
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].offset = dataSize; dataSize += sizeof(vert.st);
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].offset = dataSize; dataSize += sizeof(vert.lightmap);
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].offset = dataSize; dataSize += sizeof(vert.normal);
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].offset = dataSize; dataSize += sizeof(vert.tangent);
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].offset = dataSize; dataSize += sizeof(vert.lightdir);
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].offset = dataSize; dataSize += sizeof(vert.color);
|
|
|
|
vc.vao->attribs[ATTR_INDEX_POSITION].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_TEXCOORD].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTCOORD].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_NORMAL].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_TANGENT].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_LIGHTDIRECTION].stride = dataSize;
|
|
vc.vao->attribs[ATTR_INDEX_COLOR].stride = dataSize;
|
|
|
|
Vao_SetVertexPointers(vc.vao);
|
|
|
|
vc.numSurfaces = 0;
|
|
vc.numBatches = 0;
|
|
vc.vertexOffset = 0;
|
|
vc.indexOffset = 0;
|
|
vcq.vertexCommitSize = 0;
|
|
vcq.indexCommitSize = 0;
|
|
vcq.numSurfaces = 0;
|
|
}
|
|
|
|
void VaoCache_BindVao(void)
|
|
{
|
|
R_BindVao(vc.vao);
|
|
}
|
|
|
|
void VaoCache_CheckAdd(qboolean *endSurface, qboolean *recycleVertexBuffer, qboolean *recycleIndexBuffer, int numVerts, int numIndexes)
|
|
{
|
|
int vertexesSize = sizeof(srfVert_t) * numVerts;
|
|
int indexesSize = sizeof(glIndex_t) * numIndexes;
|
|
|
|
if (vc.vao->vertexesSize < vc.vertexOffset + vcq.vertexCommitSize + vertexesSize)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of space in vertex cache: %d < %d + %d + %d\n", vc.vao->vertexesSize, vc.vertexOffset, vc.vertexCommitSize, vertexesSize);
|
|
*recycleVertexBuffer = qtrue;
|
|
*recycleIndexBuffer = qtrue;
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (vc.vao->indexesSize < vc.indexOffset + vcq.indexCommitSize + indexesSize)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of space in index cache\n");
|
|
*recycleIndexBuffer = qtrue;
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (vc.numSurfaces + vcq.numSurfaces >= VAOCACHE_MAX_SURFACES)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of surfaces in index cache\n");
|
|
*recycleIndexBuffer = qtrue;
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (vc.numBatches >= VAOCACHE_MAX_BATCHES)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of batches in index cache\n");
|
|
*recycleIndexBuffer = qtrue;
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (vcq.numSurfaces >= VAOCACHE_QUEUE_MAX_SURFACES)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of queued surfaces\n");
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (VAOCACHE_QUEUE_MAX_VERTEXES * sizeof(srfVert_t) < vcq.vertexCommitSize + vertexesSize)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of queued vertexes\n");
|
|
*endSurface = qtrue;
|
|
}
|
|
|
|
if (VAOCACHE_QUEUE_MAX_INDEXES * sizeof(glIndex_t) < vcq.indexCommitSize + indexesSize)
|
|
{
|
|
//ri.Printf(PRINT_ALL, "out of queued indexes\n");
|
|
*endSurface = qtrue;
|
|
}
|
|
}
|
|
|
|
void VaoCache_RecycleVertexBuffer(void)
|
|
{
|
|
qglBindBuffer(GL_ARRAY_BUFFER, vc.vao->vertexesVBO);
|
|
qglBufferData(GL_ARRAY_BUFFER, vc.vao->vertexesSize, NULL, GL_DYNAMIC_DRAW);
|
|
vc.vertexOffset = 0;
|
|
}
|
|
|
|
void VaoCache_RecycleIndexBuffer(void)
|
|
{
|
|
qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vc.vao->indexesIBO);
|
|
qglBufferData(GL_ELEMENT_ARRAY_BUFFER, vc.vao->indexesSize, NULL, GL_DYNAMIC_DRAW);
|
|
vc.indexOffset = 0;
|
|
vc.numSurfaces = 0;
|
|
vc.numBatches = 0;
|
|
}
|
|
|
|
void VaoCache_InitQueue(void)
|
|
{
|
|
vcq.vertexCommitSize = 0;
|
|
vcq.indexCommitSize = 0;
|
|
vcq.numSurfaces = 0;
|
|
}
|
|
|
|
void VaoCache_AddSurface(srfVert_t *verts, int numVerts, glIndex_t *indexes, int numIndexes)
|
|
{
|
|
queuedSurface_t *queueEntry = vcq.surfaces + vcq.numSurfaces;
|
|
queueEntry->vertexes = verts;
|
|
queueEntry->numVerts = numVerts;
|
|
queueEntry->indexes = indexes;
|
|
queueEntry->numIndexes = numIndexes;
|
|
vcq.numSurfaces++;
|
|
|
|
vcq.vertexCommitSize += sizeof(srfVert_t) * numVerts;;
|
|
vcq.indexCommitSize += sizeof(glIndex_t) * numIndexes;
|
|
}
|