void CParticleEmitter::RenderArray()
{
// Some drivers apparently don't like count=0 in glDrawArrays here,
// so skip all drawing in that case
if (m_Particles.empty())
return;
u8* base = m_VertexArray.Bind();
GLsizei stride = (GLsizei)m_VertexArray.GetStride();
glVertexPointer(3, GL_FLOAT, stride, base + m_AttributePos.offset);
// Pass the sin/cos axis components as texcoords for no particular reason
// other than that they fit. (Maybe this should be glVertexAttrib* instead?)
pglClientActiveTextureARB(GL_TEXTURE1);
glTexCoordPointer(2, GL_FLOAT, stride, base + m_AttributeAxis.offset);
pglClientActiveTextureARB(GL_TEXTURE0);
glTexCoordPointer(2, GL_FLOAT, stride, base + m_AttributeUV.offset);
glColorPointer(4, GL_UNSIGNED_BYTE, stride, base + m_AttributeColor.offset);
glDrawArrays(GL_QUADS, 0, m_Particles.size()*4);
g_Renderer.GetStats().m_DrawCalls++;
g_Renderer.GetStats().m_Particles += m_Particles.size();
}
void CShaderProgram::BindClientStates()
{
ENSURE(m_StreamFlags == (m_StreamFlags & (STREAM_POS|STREAM_NORMAL|STREAM_COLOR|STREAM_UV0|STREAM_UV1)));
// Enable all the desired client states for non-GLSL rendering
if (m_StreamFlags & STREAM_POS) glEnableClientState(GL_VERTEX_ARRAY);
if (m_StreamFlags & STREAM_NORMAL) glEnableClientState(GL_NORMAL_ARRAY);
if (m_StreamFlags & STREAM_COLOR) glEnableClientState(GL_COLOR_ARRAY);
if (m_StreamFlags & STREAM_UV0)
{
pglClientActiveTextureARB(GL_TEXTURE0);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (m_StreamFlags & STREAM_UV1)
{
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE0);
}
// Rendering code must subsequently call VertexPointer etc for all of the streams
// that were activated in this function, else AssertPointersBound will complain
// that some arrays were unspecified
m_ValidStreams = 0;
}
void CShaderProgram::TexCoordPointer(GLenum texture, GLint size, GLenum type, GLsizei stride, void* pointer)
{
pglClientActiveTextureARB(texture);
glTexCoordPointer(size, type, stride, pointer);
pglClientActiveTextureARB(GL_TEXTURE0);
m_ValidStreams |= STREAM_UV0 << (texture - GL_TEXTURE0);
}
/*
=================
GL_SelectTexture
=================
*/
void GL_SelectTexture( GLint tmu )
{
if( !GL_Support( GL_ARB_MULTITEXTURE ))
return;
// don't allow negative texture units
if( tmu < 0 ) return;
if( tmu >= GL_MaxTextureUnits( ))
{
MsgDev( D_ERROR, "GL_SelectTexture: bad tmu state %i\n", tmu );
return;
}
if( glState.activeTMU == tmu )
return;
glState.activeTMU = tmu;
#ifndef XASH_NANOGL
if( pglActiveTextureARB )
#endif
{
pglActiveTextureARB( tmu + GL_TEXTURE0_ARB );
if( tmu < glConfig.max_texture_coords )
pglClientActiveTextureARB( tmu + GL_TEXTURE0_ARB );
}
#ifndef XASH_NANOGL
else if( pglSelectTextureSGIS )
{
pglSelectTextureSGIS( tmu + GL_TEXTURE0_SGIS );
}
#endif
}
void ParticleRenderer::RenderParticles(bool solidColor)
{
CShaderProgramPtr shader = solidColor ? m->shaderSolid : m->shader;
shader->Bind();
if (!solidColor)
glEnable(GL_BLEND);
glDepthMask(0);
glEnableClientState(GL_VERTEX_ARRAY);
if (!solidColor)
glEnableClientState(GL_COLOR_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE0);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
for (size_t i = 0; i < m->emitters.size(); ++i)
{
CParticleEmitter* emitter = m->emitters[i];
emitter->Bind();
emitter->RenderArray();
}
CVertexBuffer::Unbind();
pglBlendEquationEXT(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE0);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_BLEND);
glDepthMask(1);
shader->Unbind();
}
void CShaderProgram::UnbindClientStates()
{
if (m_StreamFlags & STREAM_POS) glDisableClientState(GL_VERTEX_ARRAY);
if (m_StreamFlags & STREAM_NORMAL) glDisableClientState(GL_NORMAL_ARRAY);
if (m_StreamFlags & STREAM_COLOR) glDisableClientState(GL_COLOR_ARRAY);
if (m_StreamFlags & STREAM_UV0)
{
pglClientActiveTextureARB(GL_TEXTURE0);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
if (m_StreamFlags & STREAM_UV1)
{
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
pglClientActiveTextureARB(GL_TEXTURE0);
}
}
///////////////////////////////////////////////////////////////////
// Full-featured terrain rendering with blending and everything
void TerrainRenderer::RenderTerrain(bool filtered)
{
#if CONFIG2_GLES
UNUSED2(filtered);
#else
ENSURE(m->phase == Phase_Render);
std::vector<CPatchRData*>& visiblePatches = filtered ? m->filteredPatches : m->visiblePatches;
std::vector<CDecalRData*>& visibleDecals = filtered ? m->filteredDecals : m->visibleDecals;
if (visiblePatches.empty() && visibleDecals.empty())
return;
CShaderProgramPtr dummyShader = g_Renderer.GetShaderManager().LoadProgram("fixed:dummy");
dummyShader->Bind();
// render the solid black sides of the map first
g_Renderer.BindTexture(0, 0);
glEnableClientState(GL_VERTEX_ARRAY);
glColor3f(0, 0, 0);
PROFILE_START("render terrain sides");
for (size_t i = 0; i < visiblePatches.size(); ++i)
visiblePatches[i]->RenderSides(dummyShader);
PROFILE_END("render terrain sides");
// switch on required client states
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// render everything fullbright
// set up texture environment for base pass
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
// Set alpha to 1.0
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
static const float one[4] = { 1.f, 1.f, 1.f, 1.f };
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, one);
PROFILE_START("render terrain base");
CPatchRData::RenderBases(visiblePatches, dummyShader, true);
PROFILE_END("render terrain base");
// render blends
// switch on the composite alpha map texture
(void)ogl_tex_bind(g_Renderer.m_hCompositeAlphaMap, 1);
// switch on second uv set
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
// setup additional texenv required by blend pass
pglActiveTextureARB(GL_TEXTURE1);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_ONE_MINUS_SRC_ALPHA);
// switch on blending
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
// no need to write to the depth buffer a second time
glDepthMask(0);
// The decal color array contains lighting data, which we don't want in this non-shader mode
glDisableClientState(GL_COLOR_ARRAY);
// render blend passes for each patch
PROFILE_START("render terrain blends");
CPatchRData::RenderBlends(visiblePatches, dummyShader, true);
PROFILE_END("render terrain blends");
// Disable second texcoord array
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
// Render terrain decals
g_Renderer.BindTexture(1, 0);
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
PROFILE_START("render terrain decals");
for (size_t i = 0; i < visibleDecals.size(); ++i)
visibleDecals[i]->Render(dummyShader, true);
PROFILE_END("render terrain decals");
// Now apply lighting
const CLightEnv& lightEnv = g_Renderer.GetLightEnv();
pglClientActiveTextureARB(GL_TEXTURE0);
glEnableClientState(GL_COLOR_ARRAY); // diffuse lighting colours
glBlendFunc(GL_DST_COLOR, GL_ZERO);
// GL_TEXTURE_ENV_COLOR requires four floats, so we shouldn't use the RGBColor directly
float terrainAmbientColor[4] = {
lightEnv.m_TerrainAmbientColor.X,
lightEnv.m_TerrainAmbientColor.Y,
lightEnv.m_TerrainAmbientColor.Z,
1.f
};
CLOSTexture& losTexture = g_Renderer.GetScene().GetLOSTexture();
int streamflags = STREAM_POS|STREAM_COLOR;
pglActiveTextureARB(GL_TEXTURE0);
// We're not going to use a texture here, but we have to have a valid texture
// bound else the texture unit will be disabled.
// We should still have a bound splat texture from some earlier rendering,
// so assume that's still valid to use.
// (TODO: That's a bit of an ugly hack.)
// No shadows: (Ambient + Diffuse) * LOS
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_ADD);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_CONSTANT);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, terrainAmbientColor);
losTexture.BindTexture(1);
pglClientActiveTextureARB(GL_TEXTURE1);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
streamflags |= STREAM_POSTOUV1;
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(&losTexture.GetTextureMatrix()._11);
glMatrixMode(GL_MODELVIEW);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_ALPHA);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
pglActiveTextureARB(GL_TEXTURE0);
pglClientActiveTextureARB(GL_TEXTURE0);
PROFILE_START("render terrain streams");
CPatchRData::RenderStreams(visiblePatches, dummyShader, streamflags);
PROFILE_END("render terrain streams");
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
// restore OpenGL state
g_Renderer.BindTexture(1, 0);
pglClientActiveTextureARB(GL_TEXTURE1);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
pglClientActiveTextureARB(GL_TEXTURE0);
pglActiveTextureARB(GL_TEXTURE0);
glDepthMask(1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_BLEND);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
dummyShader->Unbind();
#endif
}
void OGLRender::Initialize(void)
{
glMatrixMode(GL_MODELVIEW);
OPENGL_CHECK_ERRORS;
glLoadIdentity();
OPENGL_CHECK_ERRORS;
glViewportWrapper(0, windowSetting.statusBarHeightToUse, windowSetting.uDisplayWidth, windowSetting.uDisplayHeight);
OPENGL_CHECK_ERRORS;
#if SDL_VIDEO_OPENGL
COGLGraphicsContext *pcontext = (COGLGraphicsContext *)(CGraphicsContext::g_pGraphicsContext);
if( pcontext->IsExtensionSupported("GL_IBM_texture_mirrored_repeat") )
{
OGLXUVFlagMaps[TEXTURE_UV_FLAG_MIRROR].realFlag = GL_MIRRORED_REPEAT_IBM;
}
else if( pcontext->IsExtensionSupported("ARB_texture_mirrored_repeat") )
{
OGLXUVFlagMaps[TEXTURE_UV_FLAG_MIRROR].realFlag = GL_MIRRORED_REPEAT_ARB;
}
else
{
OGLXUVFlagMaps[TEXTURE_UV_FLAG_MIRROR].realFlag = GL_REPEAT;
}
if( pcontext->IsExtensionSupported("GL_ARB_texture_border_clamp") || pcontext->IsExtensionSupported("GL_EXT_texture_edge_clamp") )
{
m_bSupportClampToEdge = true;
OGLXUVFlagMaps[TEXTURE_UV_FLAG_CLAMP].realFlag = GL_CLAMP_TO_EDGE;
}
else
{
m_bSupportClampToEdge = false;
OGLXUVFlagMaps[TEXTURE_UV_FLAG_CLAMP].realFlag = GL_CLAMP;
}
glVertexPointer( 4, GL_FLOAT, sizeof(float)*5, &(g_vtxProjected5[0][0]) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_VERTEX_ARRAY );
OPENGL_CHECK_ERRORS;
if( m_bMultiTexture )
{
pglClientActiveTextureARB( GL_TEXTURE0_ARB );
OPENGL_CHECK_ERRORS;
glTexCoordPointer( 2, GL_FLOAT, sizeof( TLITVERTEX ), &(g_vtxBuffer[0].tcord[0].u) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
OPENGL_CHECK_ERRORS;
pglClientActiveTextureARB( GL_TEXTURE1_ARB );
OPENGL_CHECK_ERRORS;
glTexCoordPointer( 2, GL_FLOAT, sizeof( TLITVERTEX ), &(g_vtxBuffer[0].tcord[1].u) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
OPENGL_CHECK_ERRORS;
}
else
{
glTexCoordPointer( 2, GL_FLOAT, sizeof( TLITVERTEX ), &(g_vtxBuffer[0].tcord[0].u) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_TEXTURE_COORD_ARRAY );
OPENGL_CHECK_ERRORS;
}
if (m_bSupportFogCoordExt)
{
pglFogCoordPointerEXT( GL_FLOAT, sizeof(float)*5, &(g_vtxProjected5[0][4]) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_FOG_COORDINATE_ARRAY_EXT );
OPENGL_CHECK_ERRORS;
glFogi( GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT );
OPENGL_CHECK_ERRORS;
glFogi(GL_FOG_MODE, GL_LINEAR); // Fog Mode
OPENGL_CHECK_ERRORS;
glFogf(GL_FOG_DENSITY, 1.0f); // How Dense Will The Fog Be
OPENGL_CHECK_ERRORS;
glHint(GL_FOG_HINT, GL_FASTEST); // Fog Hint Value
OPENGL_CHECK_ERRORS;
glFogi( GL_FOG_COORDINATE_SOURCE_EXT, GL_FOG_COORDINATE_EXT );
OPENGL_CHECK_ERRORS;
glFogf( GL_FOG_START, 0.0f );
OPENGL_CHECK_ERRORS;
glFogf( GL_FOG_END, 1.0f );
OPENGL_CHECK_ERRORS;
}
//glColorPointer( 1, GL_UNSIGNED_BYTE, sizeof(TLITVERTEX), &g_vtxBuffer[0].r);
glColorPointer( 4, GL_UNSIGNED_BYTE, sizeof(uint8)*4, &(g_oglVtxColors[0][0]) );
OPENGL_CHECK_ERRORS;
glEnableClientState( GL_COLOR_ARRAY );
OPENGL_CHECK_ERRORS;
if( pcontext->IsExtensionSupported("GL_NV_depth_clamp") )
{
glEnable(GL_DEPTH_CLAMP_NV);
OPENGL_CHECK_ERRORS;
}
#elif SDL_VIDEO_OPENGL_ES2
OGLXUVFlagMaps[TEXTURE_UV_FLAG_MIRROR].realFlag = GL_MIRRORED_REPEAT;
m_bSupportClampToEdge = true;
OGLXUVFlagMaps[TEXTURE_UV_FLAG_CLAMP].realFlag = GL_CLAMP_TO_EDGE;
#endif
#ifdef PAULSCODE
hardwareType = Android_JNI_GetHardwareType();
#endif
}
void CPatchRData::RenderBlends(const std::vector<CPatchRData*>& patches, const CShaderDefines& context,
ShadowMap* shadow, bool isDummyShader, const CShaderProgramPtr& dummy)
{
Allocators::Arena<> arena(ARENA_SIZE);
typedef std::vector<SBlendBatch, ProxyAllocator<SBlendBatch, Allocators::Arena<> > > BatchesStack;
BatchesStack batches((BatchesStack::allocator_type(arena)));
CShaderDefines contextBlend = context;
contextBlend.Add("BLEND", "1");
PROFILE_START("compute batches");
// Reserve an arbitrary size that's probably big enough in most cases,
// to avoid heavy reallocations
batches.reserve(256);
typedef std::vector<SBlendStackItem, ProxyAllocator<SBlendStackItem, Allocators::Arena<> > > BlendStacks;
BlendStacks blendStacks((BlendStacks::allocator_type(arena)));
blendStacks.reserve(patches.size());
// Extract all the blend splats from each patch
for (size_t i = 0; i < patches.size(); ++i)
{
CPatchRData* patch = patches[i];
if (!patch->m_BlendSplats.empty())
{
blendStacks.push_back(SBlendStackItem(patch->m_VBBlends, patch->m_VBBlendIndices, patch->m_BlendSplats, arena));
// Reverse the splats so the first to be rendered is at the back of the list
std::reverse(blendStacks.back().splats.begin(), blendStacks.back().splats.end());
}
}
// Rearrange the collection of splats to be grouped by texture, preserving
// order of splats within each patch:
// (This is exactly the same algorithm used in CPatchRData::BuildBlends,
// but applied to patch-sized splats rather than to tile-sized splats;
// see that function for comments on the algorithm.)
while (true)
{
if (!batches.empty())
{
CTerrainTextureEntry* tex = batches.back().m_Texture;
for (size_t k = 0; k < blendStacks.size(); ++k)
{
SBlendStackItem::SplatStack& splats = blendStacks[k].splats;
if (!splats.empty() && splats.back().m_Texture == tex)
{
CVertexBuffer::VBChunk* vertices = blendStacks[k].vertices;
CVertexBuffer::VBChunk* indices = blendStacks[k].indices;
BatchElements& batch = PooledPairGet(PooledMapGet(batches.back().m_Batches, vertices->m_Owner, arena), indices->m_Owner, arena);
batch.first.push_back(splats.back().m_IndexCount);
u8* indexBase = indices->m_Owner->GetBindAddress();
batch.second.push_back(indexBase + sizeof(u16)*(indices->m_Index + splats.back().m_IndexStart));
splats.pop_back();
}
}
}
CTerrainTextureEntry* bestTex = NULL;
size_t bestStackSize = 0;
for (size_t k = 0; k < blendStacks.size(); ++k)
{
SBlendStackItem::SplatStack& splats = blendStacks[k].splats;
if (splats.size() > bestStackSize)
{
bestStackSize = splats.size();
bestTex = splats.back().m_Texture;
}
}
if (bestStackSize == 0)
break;
SBlendBatch layer(arena);
layer.m_Texture = bestTex;
batches.push_back(layer);
}
PROFILE_END("compute batches");
CVertexBuffer* lastVB = NULL;
for (BatchesStack::iterator itt = batches.begin(); itt != batches.end(); ++itt)
{
if (itt->m_Texture->GetMaterial().GetSamplers().size() == 0)
continue;
int numPasses = 1;
CShaderTechniquePtr techBase;
if (!isDummyShader)
{
techBase = g_Renderer.GetShaderManager().LoadEffect(itt->m_Texture->GetMaterial().GetShaderEffect(), contextBlend, itt->m_Texture->GetMaterial().GetShaderDefines());
numPasses = techBase->GetNumPasses();
}
CShaderProgramPtr previousShader;
for (int pass = 0; pass < numPasses; ++pass)
{
if (!isDummyShader)
{
techBase->BeginPass(pass);
TerrainRenderer::PrepareShader(techBase->GetShader(), shadow);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
const CShaderProgramPtr& shader = isDummyShader ? dummy : techBase->GetShader(pass);
if (itt->m_Texture)
{
CMaterial::SamplersVector samplers = itt->m_Texture->GetMaterial().GetSamplers();
size_t samplersNum = samplers.size();
for (size_t s = 0; s < samplersNum; ++s)
{
CMaterial::TextureSampler &samp = samplers[s];
shader->BindTexture(samp.Name.c_str(), samp.Sampler);
}
shader->BindTexture("blendTex", itt->m_Texture->m_TerrainAlpha->second.m_hCompositeAlphaMap);
itt->m_Texture->GetMaterial().GetStaticUniforms().BindUniforms(shader);
#if !CONFIG2_GLES
if (isDummyShader)
{
pglClientActiveTextureARB(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glLoadMatrixf(itt->m_Texture->GetTextureMatrix());
glMatrixMode(GL_MODELVIEW);
}
else
#endif
{
float c = itt->m_Texture->GetTextureMatrix()[0];
float ms = itt->m_Texture->GetTextureMatrix()[8];
shader->Uniform("textureTransform", c, ms, -ms, 0.f);
}
}
else
{
shader->BindTexture("baseTex", g_Renderer.GetTextureManager().GetErrorTexture());
}
for (VertexBufferBatches::iterator itv = itt->m_Batches.begin(); itv != itt->m_Batches.end(); ++itv)
{
// Rebind the VB only if it changed since the last batch
if (itv->first != lastVB || shader != previousShader)
{
lastVB = itv->first;
previousShader = shader;
GLsizei stride = sizeof(SBlendVertex);
SBlendVertex *base = (SBlendVertex *)itv->first->Bind();
shader->VertexPointer(3, GL_FLOAT, stride, &base->m_Position[0]);
shader->ColorPointer(4, GL_UNSIGNED_BYTE, stride, &base->m_DiffuseColor);
shader->NormalPointer(GL_FLOAT, stride, &base->m_Normal[0]);
shader->TexCoordPointer(GL_TEXTURE0, 3, GL_FLOAT, stride, &base->m_Position[0]);
shader->TexCoordPointer(GL_TEXTURE1, 2, GL_FLOAT, stride, &base->m_AlphaUVs[0]);
}
shader->AssertPointersBound();
for (IndexBufferBatches::iterator it = itv->second.begin(); it != itv->second.end(); ++it)
{
it->first->Bind();
BatchElements& batch = it->second;
if (!g_Renderer.m_SkipSubmit)
{
for (size_t i = 0; i < batch.first.size(); ++i)
glDrawElements(GL_TRIANGLES, batch.first[i], GL_UNSIGNED_SHORT, batch.second[i]);
}
g_Renderer.m_Stats.m_DrawCalls++;
g_Renderer.m_Stats.m_BlendSplats++;
g_Renderer.m_Stats.m_TerrainTris += std::accumulate(batch.first.begin(), batch.first.end(), 0) / 3;
}
}
if (!isDummyShader)
{
glDisable(GL_BLEND);
techBase->EndPass();
}
}
}
#if !CONFIG2_GLES
if (isDummyShader)
{
pglClientActiveTextureARB(GL_TEXTURE0);
glMatrixMode(GL_TEXTURE);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
}
#endif
CVertexBuffer::Unbind();
}
