irr/src/OpenGL/Renderer2D.cpp

   1 // Copyright (C) 2014 Patryk Nadrowski
   2 // This file is part of the "Irrlicht Engine".
   3 // For conditions of distribution and use, see copyright notice in Irrlicht.h
   4
   5 #include "Renderer2D.h"
   6
   7 #include "IGPUProgrammingServices.h"
   8 #include "os.h"
   9
  10 #include "Driver.h"
  11
  12 #include "COpenGLCoreFeature.h"
  13 #include "COpenGLCoreTexture.h"
  14 #include "COpenGLCoreCacheHandler.h"
  15
  16 namespace irr
  17 {
  18 namespace video
  19 {
  20
  21 COpenGL3Renderer2D::COpenGL3Renderer2D(const c8 *vertexShaderProgram, const c8 *pixelShaderProgram, COpenGL3DriverBase *driver, bool withTexture) :
  22                 COpenGL3MaterialRenderer(driver, 0, EMT_SOLID),
  23                 WithTexture(withTexture)
  24 {
  25 #ifdef _DEBUG
  26         setDebugName("Renderer2D");
  27 #endif
  28
  29         int Temp = 0;
  30
  31         init(Temp, vertexShaderProgram, pixelShaderProgram, false);
  32
  33         COpenGL3CacheHandler *cacheHandler = Driver->getCacheHandler();
  34
  35         cacheHandler->setProgram(Program);
  36
  37         // These states don't change later.
  38
  39         ThicknessID = getPixelShaderConstantID("uThickness");
  40         if (WithTexture) {
  41                 TextureUsageID = getPixelShaderConstantID("uTextureUsage");
  42                 s32 TextureUnitID = getPixelShaderConstantID("uTextureUnit");
  43
  44                 s32 TextureUnit = 0;
  45                 setPixelShaderConstant(TextureUnitID, &TextureUnit, 1);
  46
  47                 s32 TextureUsage = 0;
  48                 setPixelShaderConstant(TextureUsageID, &TextureUsage, 1);
  49         }
  50
  51         cacheHandler->setProgram(0);
  52 }
  53
  54 COpenGL3Renderer2D::~COpenGL3Renderer2D()
  55 {
  56 }
  57
  58 void COpenGL3Renderer2D::OnSetMaterial(const video::SMaterial &material,
  59                 const video::SMaterial &lastMaterial,
  60                 bool resetAllRenderstates,
  61                 video::IMaterialRendererServices *services)
  62 {
  63         Driver->getCacheHandler()->setProgram(Program);
  64         Driver->setBasicRenderStates(material, lastMaterial, resetAllRenderstates);
  65
  66         f32 Thickness = (material.Thickness > 0.f) ? material.Thickness : 1.f;
  67         setPixelShaderConstant(ThicknessID, &Thickness, 1);
  68
  69         if (WithTexture) {
  70                 s32 TextureUsage = material.TextureLayers[0].Texture ? 1 : 0;
  71                 setPixelShaderConstant(TextureUsageID, &TextureUsage, 1);
  72         }
  73 }
  74
  75 bool COpenGL3Renderer2D::OnRender(IMaterialRendererServices *service, E_VERTEX_TYPE vtxtype)
  76 {
  77         return true;
  78 }
  79
  80 }
  81 }