diff options
Diffstat (limited to 'source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_StorageVA.cpp')
| -rw-r--r-- | source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_StorageVA.cpp | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_StorageVA.cpp b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_StorageVA.cpp new file mode 100644 index 00000000000..72af3852cf6 --- /dev/null +++ b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_StorageVA.cpp @@ -0,0 +1,320 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include "RAS_StorageVA.h" + +#include "GL/glew.h" + +RAS_StorageVA::RAS_StorageVA(int *texco_num, RAS_IRasterizer::TexCoGen *texco, int *attrib_num, RAS_IRasterizer::TexCoGen *attrib, int *attrib_layer) : + m_texco_num(texco_num), + m_attrib_num(attrib_num), + m_last_texco_num(0), + m_last_attrib_num(0), + m_texco(texco), + m_attrib(attrib), + m_attrib_layer(attrib_layer) +{ +} + +RAS_StorageVA::~RAS_StorageVA() +{ +} + +bool RAS_StorageVA::Init() +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + + return true; +} + +void RAS_StorageVA::Exit() +{ +} + +void RAS_StorageVA::IndexPrimitives(RAS_MeshSlot& ms) +{ + static const GLsizei stride = sizeof(RAS_TexVert); + bool wireframe = m_drawingmode <= RAS_IRasterizer::KX_WIREFRAME; + RAS_MeshSlot::iterator it; + GLenum drawmode; + + if (!wireframe) + glEnableClientState(GL_TEXTURE_COORD_ARRAY); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + + // use glDrawElements to draw each vertexarray + for (ms.begin(it); !ms.end(it); ms.next(it)) { + if (it.totindex == 0) + continue; + + // drawing mode + if (it.array->m_type == RAS_DisplayArray::TRIANGLE) + drawmode = GL_TRIANGLES; + else if (it.array->m_type == RAS_DisplayArray::QUAD) + drawmode = GL_QUADS; + else + drawmode = GL_LINES; + + // colors + if (drawmode != GL_LINES && !wireframe) { + if (ms.m_bObjectColor) { + const MT_Vector4& rgba = ms.m_RGBAcolor; + + glDisableClientState(GL_COLOR_ARRAY); + glColor4d(rgba[0], rgba[1], rgba[2], rgba[3]); + } + else { + glColor4f(0.0f, 0.0f, 0.0f, 1.0f); + glEnableClientState(GL_COLOR_ARRAY); + } + } + else + glColor4f(0.0f, 0.0f, 0.0f, 1.0f); + + glVertexPointer(3, GL_FLOAT, stride, it.vertex->getXYZ()); + glNormalPointer(GL_FLOAT, stride, it.vertex->getNormal()); + if (!wireframe) { + glTexCoordPointer(2, GL_FLOAT, stride, it.vertex->getUV(0)); + if (glIsEnabled(GL_COLOR_ARRAY)) + glColorPointer(4, GL_UNSIGNED_BYTE, stride, it.vertex->getRGBA()); + } + + // here the actual drawing takes places + glDrawElements(drawmode, it.totindex, GL_UNSIGNED_SHORT, it.index); + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + if (!wireframe) { + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + glDisableClientState(GL_COLOR_ARRAY); + } +} + +void RAS_StorageVA::IndexPrimitivesMulti(class RAS_MeshSlot& ms) +{ + static const GLsizei stride = sizeof(RAS_TexVert); + bool wireframe = m_drawingmode <= RAS_IRasterizer::KX_WIREFRAME, use_color_array = true; + RAS_MeshSlot::iterator it; + GLenum drawmode; + + if (!wireframe) + EnableTextures(true); + glEnableClientState(GL_VERTEX_ARRAY); + glEnableClientState(GL_NORMAL_ARRAY); + + // use glDrawElements to draw each vertexarray + for (ms.begin(it); !ms.end(it); ms.next(it)) { + if (it.totindex == 0) + continue; + + // drawing mode + if (it.array->m_type == RAS_DisplayArray::TRIANGLE) + drawmode = GL_TRIANGLES; + else if (it.array->m_type == RAS_DisplayArray::QUAD) + drawmode = GL_QUADS; + else + drawmode = GL_LINES; + + // colors + if (drawmode != GL_LINES && !wireframe) { + if (ms.m_bObjectColor) { + const MT_Vector4& rgba = ms.m_RGBAcolor; + + glDisableClientState(GL_COLOR_ARRAY); + glColor4d(rgba[0], rgba[1], rgba[2], rgba[3]); + use_color_array = false; + } + else { + glColor4f(0.0f, 0.0f, 0.0f, 1.0f); + glEnableClientState(GL_COLOR_ARRAY); + use_color_array = true; + } + } + else + glColor4f(0.0f, 0.0f, 0.0f, 1.0f); + + glVertexPointer(3, GL_FLOAT, stride, it.vertex->getXYZ()); + glNormalPointer(GL_FLOAT, stride, it.vertex->getNormal()); + + if (!wireframe) { + TexCoordPtr(it.vertex); + if (use_color_array) + glColorPointer(4, GL_UNSIGNED_BYTE, stride, it.vertex->getRGBA()); + } + + // here the actual drawing takes places + glDrawElements(drawmode, it.totindex, GL_UNSIGNED_SHORT, it.index); + } + + glDisableClientState(GL_VERTEX_ARRAY); + glDisableClientState(GL_NORMAL_ARRAY); + if (!wireframe) { + glDisableClientState(GL_COLOR_ARRAY); + EnableTextures(false); + } +} + +void RAS_StorageVA::TexCoordPtr(const RAS_TexVert *tv) +{ + /* note: this function must closely match EnableTextures to enable/disable + * the right arrays, otherwise coordinate and attribute pointers from other + * materials can still be used and cause crashes */ + int unit; + + if (GLEW_ARB_multitexture) + { + for (unit = 0; unit < *m_texco_num; unit++) + { + glClientActiveTextureARB(GL_TEXTURE0_ARB+unit); + switch (m_texco[unit]) { + case RAS_IRasterizer::RAS_TEXCO_ORCO: + case RAS_IRasterizer::RAS_TEXCO_GLOB: + glTexCoordPointer(3, GL_FLOAT, sizeof(RAS_TexVert),tv->getXYZ()); + break; + case RAS_IRasterizer::RAS_TEXCO_UV: + glTexCoordPointer(2, GL_FLOAT, sizeof(RAS_TexVert),tv->getUV(unit)); + break; + case RAS_IRasterizer::RAS_TEXCO_NORM: + glTexCoordPointer(3, GL_FLOAT, sizeof(RAS_TexVert),tv->getNormal()); + break; + case RAS_IRasterizer::RAS_TEXTANGENT: + glTexCoordPointer(4, GL_FLOAT, sizeof(RAS_TexVert),tv->getTangent()); + break; + default: + break; + } + } + + glClientActiveTextureARB(GL_TEXTURE0_ARB); + } + + if (GLEW_ARB_vertex_program) { + for (unit = 0; unit < *m_attrib_num; unit++) { + switch (m_attrib[unit]) { + case RAS_IRasterizer::RAS_TEXCO_ORCO: + case RAS_IRasterizer::RAS_TEXCO_GLOB: + glVertexAttribPointerARB(unit, 3, GL_FLOAT, GL_FALSE, sizeof(RAS_TexVert), tv->getXYZ()); + break; + case RAS_IRasterizer::RAS_TEXCO_UV: + glVertexAttribPointerARB(unit, 2, GL_FLOAT, GL_FALSE, sizeof(RAS_TexVert), tv->getUV(m_attrib_layer[unit])); + break; + case RAS_IRasterizer::RAS_TEXCO_NORM: + glVertexAttribPointerARB(unit, 3, GL_FLOAT, GL_FALSE, sizeof(RAS_TexVert), tv->getNormal()); + break; + case RAS_IRasterizer::RAS_TEXTANGENT: + glVertexAttribPointerARB(unit, 4, GL_FLOAT, GL_FALSE, sizeof(RAS_TexVert), tv->getTangent()); + break; + case RAS_IRasterizer::RAS_TEXCO_VCOL: + glVertexAttribPointerARB(unit, 4, GL_UNSIGNED_BYTE, GL_FALSE, sizeof(RAS_TexVert), tv->getRGBA()); + break; + default: + break; + } + } + } +} + +void RAS_StorageVA::EnableTextures(bool enable) +{ + RAS_IRasterizer::TexCoGen *texco, *attrib; + int unit, texco_num, attrib_num; + + /* we cache last texcoords and attribs to ensure we disable the ones that + * were actually last set */ + if (enable) { + texco = m_texco; + texco_num = *m_texco_num; + attrib = m_attrib; + attrib_num = *m_attrib_num; + + memcpy(m_last_texco, m_texco, sizeof(RAS_IRasterizer::TexCoGen)*(*m_texco_num)); + m_last_texco_num = *m_texco_num; + memcpy(m_last_attrib, m_attrib, sizeof(RAS_IRasterizer::TexCoGen)*(*m_attrib_num)); + m_last_attrib_num = *m_attrib_num; + } + else { + texco = m_last_texco; + texco_num = m_last_texco_num; + attrib = m_last_attrib; + attrib_num = m_last_attrib_num; + } + + if (GLEW_ARB_multitexture) { + for (unit = 0; unit < texco_num; unit++) { + glClientActiveTextureARB(GL_TEXTURE0_ARB + unit); + + switch (texco[unit]) { + case RAS_IRasterizer::RAS_TEXCO_ORCO: + case RAS_IRasterizer::RAS_TEXCO_GLOB: + case RAS_IRasterizer::RAS_TEXCO_UV: + case RAS_IRasterizer::RAS_TEXCO_NORM: + case RAS_IRasterizer::RAS_TEXTANGENT: + if (enable) glEnableClientState(GL_TEXTURE_COORD_ARRAY); + else glDisableClientState(GL_TEXTURE_COORD_ARRAY); + break; + default: + glDisableClientState(GL_TEXTURE_COORD_ARRAY); + break; + } + } + + glClientActiveTextureARB(GL_TEXTURE0_ARB); + } + else { + if (texco_num) { + if (enable) glEnableClientState(GL_TEXTURE_COORD_ARRAY); + else glDisableClientState(GL_TEXTURE_COORD_ARRAY); + } + } + + if (GLEW_ARB_vertex_program) { + for (unit = 0; unit < attrib_num; unit++) { + switch (attrib[unit]) { + case RAS_IRasterizer::RAS_TEXCO_ORCO: + case RAS_IRasterizer::RAS_TEXCO_GLOB: + case RAS_IRasterizer::RAS_TEXCO_UV: + case RAS_IRasterizer::RAS_TEXCO_NORM: + case RAS_IRasterizer::RAS_TEXTANGENT: + case RAS_IRasterizer::RAS_TEXCO_VCOL: + if (enable) glEnableVertexAttribArrayARB(unit); + else glDisableVertexAttribArrayARB(unit); + break; + default: + glDisableVertexAttribArrayARB(unit); + break; + } + } + } + + if (!enable) { + m_last_texco_num = 0; + m_last_attrib_num = 0; + } +} + |