void CHeightTexture::Update()
{
needUpdate = false;
if (!fbo.IsValid() || !shader->IsValid() || (heightMapTexture->GetTextureID() == 0))
return UpdateCPU();
fbo.Bind();
glViewport(0,0, texSize.x, texSize.y);
shader->Enable();
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, paletteTex);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, heightMapTexture->GetTextureID());
glBegin(GL_QUADS);
glVertex2f(0.f, 0.f);
glVertex2f(0.f, 1.f);
glVertex2f(1.f, 1.f);
glVertex2f(1.f, 0.f);
glEnd();
shader->Disable();
glViewport(globalRendering->viewPosX,0,globalRendering->viewSizeX,globalRendering->viewSizeY);
FBO::Unbind();
// cleanup
glActiveTexture(GL_TEXTURE1);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
}
void CHeightTexture::Update()
{
needUpdate = false;
if (!fbo.IsValid() || !shader->IsValid() || (heightMapTexture->GetTextureID() == 0))
return UpdateCPU();
fbo.Bind();
glViewport(0, 0, texSize.x, texSize.y);
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, paletteTex);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, heightMapTexture->GetTextureID());
GL::RenderDataBuffer0* rdb = GL::GetRenderBuffer0();
shader->Enable();
rdb->SafeAppend(VERTS, sizeof(VERTS) / sizeof(VERTS[0]));
rdb->Submit(GL_QUADS);
shader->Disable();
glViewport(globalRendering->viewPosX, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
FBO::Unbind();
// cleanup
glActiveTexture(GL_TEXTURE1);
glDisable(GL_TEXTURE_2D);
glActiveTexture(GL_TEXTURE0);
}
void CLosTexture::Update()
{
if (!fbo.IsValid() || !shader->IsValid() || uploadTex == 0)
return UpdateCPU();
if (losHandler->globalLOS[gu->myAllyTeam]) {
fbo.Bind();
glViewport(0, 0, texSize.x, texSize.y);
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(globalRendering->viewPosX, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
FBO::Unbind();
glBindTexture(GL_TEXTURE_2D, texture);
glGenerateMipmap(GL_TEXTURE_2D);
return;
}
infoTexPBO.Bind();
uint8_t* infoTexMem = reinterpret_cast<uint8_t*>(infoTexPBO.MapBuffer());
const uint16_t* myLos = &losHandler->los.losMaps[gu->myAllyTeam].front();
memcpy(infoTexMem, myLos, texSize.x * texSize.y * texChannels * sizeof(uint16_t));
infoTexPBO.UnmapBuffer();
//Trick: Upload the ushort as 2 ubytes, and then check both for `!=0` in the shader.
// Faster than doing it on the CPU! And uploading it as shorts would be slow, cause the GPU
// has no native support for them and so the transformation would happen on the CPU, too.
glBindTexture(GL_TEXTURE_2D, uploadTex);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texSize.x, texSize.y, GL_RG, GL_UNSIGNED_BYTE, infoTexPBO.GetPtr());
infoTexPBO.Invalidate();
infoTexPBO.Unbind();
// do post-processing on the gpu (los-checking & scaling)
fbo.Bind();
glViewport(0, 0, texSize.x, texSize.y);
glDisable(GL_BLEND);
GL::RenderDataBuffer0* rdb = GL::GetRenderBuffer0();
shader->Enable();
rdb->SafeAppend(VERTS, sizeof(VERTS) / sizeof(VERTS[0]));
rdb->Submit(GL_QUADS);
shader->Disable();
glViewport(globalRendering->viewPosX, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
FBO::Unbind();
// generate mipmaps
glBindTexture(GL_TEXTURE_2D, texture);
glGenerateMipmap(GL_TEXTURE_2D);
}
void CRadarTexture::Update()
{
if (!fbo.IsValid() || !shader->IsValid() || uploadTexRadar == 0 || uploadTexJammer == 0)
return UpdateCPU();
if (losHandler->globalLOS[gu->myAllyTeam]) {
fbo.Bind();
glViewport(0,0, texSize.x, texSize.y);
glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(globalRendering->viewPosX,0,globalRendering->viewSizeX,globalRendering->viewSizeY);
FBO::Unbind();
glBindTexture(GL_TEXTURE_2D, texture);
glGenerateMipmap(GL_TEXTURE_2D);
return;
}
const int jammerAllyTeam = modInfo.separateJammers ? gu->myAllyTeam : 0;
infoTexPBO.Bind();
const size_t arraySize = texSize.x * texSize.y * sizeof(unsigned short);
auto infoTexMem = reinterpret_cast<unsigned char*>(infoTexPBO.MapBuffer());
const unsigned short* myRadar = &losHandler->radar.losMaps[gu->myAllyTeam].front();
const unsigned short* myJammer = &losHandler->jammer.losMaps[jammerAllyTeam].front();
memcpy(infoTexMem, myRadar, arraySize);
infoTexMem += arraySize;
memcpy(infoTexMem, myJammer, arraySize);
infoTexPBO.UnmapBuffer();
//Trick: Upload the ushort as 2 ubytes, and then check both for `!=0` in the shader.
// Faster than doing it on the CPU! And uploading it as shorts would be slow, cause the GPU
// has no native support for them and so the transformation would happen on the CPU, too.
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, uploadTexRadar);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texSize.x, texSize.y, GL_RG, GL_UNSIGNED_BYTE, infoTexPBO.GetPtr());
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, uploadTexJammer);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texSize.x, texSize.y, GL_RG, GL_UNSIGNED_BYTE, infoTexPBO.GetPtr(arraySize));
infoTexPBO.Invalidate();
infoTexPBO.Unbind();
// do post-processing on the gpu (los-checking & scaling)
fbo.Bind();
glViewport(0,0, texSize.x, texSize.y);
shader->Enable();
glDisable(GL_BLEND);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, infoTextureHandler->GetInfoTexture("los")->GetTexture());
glBegin(GL_QUADS);
glVertex2f(-1.f, -1.f);
glVertex2f(-1.f, +1.f);
glVertex2f(+1.f, +1.f);
glVertex2f(+1.f, -1.f);
glEnd();
shader->Disable();
glViewport(globalRendering->viewPosX,0,globalRendering->viewSizeX,globalRendering->viewSizeY);
FBO::Unbind();
// generate mipmaps
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture);
}
