source/tests.cpp

   1 #include "tests.h"
   2
   3 namespace Msp {
   4 namespace GL {
   5
   6 DepthTest::DepthTest():
   7         write(true),
   8         pred(LESS)
   9 { }
  10
  11 DepthTest::DepthTest(Predicate p, bool w):
  12         write(w),
  13         pred(p)
  14 { }
  15
  16 void DepthTest::bind() const
  17 {
  18         if(set_current(this))
  19         {
  20                 glEnable(GL_DEPTH_TEST);
  21                 glDepthFunc(pred);
  22                 glDepthMask(write);
  23         }
  24 }
  25
  26 const DepthTest &DepthTest::lequal()
  27 {
  28         static DepthTest test(LEQUAL);
  29         return test;
  30 }
  31
  32 void DepthTest::unbind()
  33 {
  34         if(set_current(0))
  35         {
  36                 glDisable(GL_DEPTH_TEST);
  37                 // Allow glClear(GL_DEPTH_BUFFER_BIT) to work
  38                 glDepthMask(true);
  39         }
  40 }
  41
  42
  43 ScissorTest::ScissorTest():
  44         left(0),
  45         bottom(0),
  46         width(1),
  47         height(1)
  48 { }
  49
  50 ScissorTest::ScissorTest(int l, int b, unsigned w, unsigned h):
  51         left(l),
  52         bottom(b),
  53         width(w),
  54         height(h)
  55 { }
  56
  57 void ScissorTest::bind() const
  58 {
  59         if(set_current(this))
  60         {
  61                 glEnable(GL_SCISSOR_TEST);
  62                 glScissor(left, bottom, width, height);
  63         }
  64 }
  65
  66 void ScissorTest::unbind()
  67 {
  68         if(set_current(0))
  69                 glDisable(GL_SCISSOR_TEST);
  70 }
  71
  72 } // namespace GL
  73 } // namespace Msp