source/core/pipelinestate.cpp

   1 #include <stdexcept>
   2 #include <msp/core/algorithm.h>
   3 #include "pipelinestate.h"
   4
   5 using namespace std;
   6
   7 namespace Msp {
   8 namespace GL {
   9
  10 template<typename T>
  11 void PipelineState::set(T &target, T value, unsigned flag)
  12 {
  13         if(value!=target)
  14         {
  15                 target = value;
  16                 changes |= flag;
  17         }
  18 }
  19
  20 void PipelineState::set_framebuffer(const Framebuffer *f)
  21 {
  22         set(framebuffer, f, FRAMEBUFFER);
  23 }
  24
  25 void PipelineState::set_viewport(const Rect *v)
  26 {
  27         set(viewport, v, VIEWPORT);
  28 }
  29
  30 void PipelineState::set_scissor(const Rect *s)
  31 {
  32         set(scissor, s, SCISSOR);
  33 }
  34
  35 void PipelineState::set_shader_program(const Program *p)
  36 {
  37         set(shprog, p, SHPROG);
  38 }
  39
  40 void PipelineState::set_uniform_block(int binding, const UniformBlock *block)
  41 {
  42         auto i = lower_bound_member(uniform_blocks, binding, &BoundUniformBlock::binding);
  43         if(i==uniform_blocks.end() || i->binding!=binding)
  44                 i = uniform_blocks.insert(i, BoundUniformBlock(binding));
  45         i->used = block;
  46         if(block!=i->block || binding<0)
  47         {
  48                 i->block = block;
  49                 i->changed = true;
  50                 changes |= UNIFORMS;
  51         }
  52 }
  53
  54 void PipelineState::set_texture(unsigned binding, const Texture *tex, const Sampler *samp)
  55 {
  56         if((tex!=0)!=(samp!=0))
  57                 throw invalid_argument("PipelineState::set_texture");
  58
  59         auto i = lower_bound_member(textures, binding, &BoundTexture::binding);
  60         if(i==textures.end() || i->binding!=binding)
  61                 i = textures.insert(i, BoundTexture(binding));
  62         i->used = (tex && samp);
  63         if(tex!=i->texture || samp!=i->sampler)
  64         {
  65                 i->texture = tex;
  66                 i->sampler = samp;
  67                 i->changed = true;
  68                 changes |= TEXTURES;
  69         }
  70 }
  71
  72 void PipelineState::set_vertex_setup(const VertexSetup *s)
  73 {
  74         set(vertex_setup, s, VERTEX_SETUP);
  75 }
  76
  77 void PipelineState::set_primitive_type(PrimitiveType t)
  78 {
  79         set(primitive_type, t, PRIMITIVE_TYPE);
  80 }
  81
  82 void PipelineState::set_front_face(FaceWinding w)
  83 {
  84         set(front_face, w, FACE_CULL);
  85 }
  86
  87 void PipelineState::set_face_cull(CullMode c)
  88 {
  89         set(face_cull, c, FACE_CULL);
  90 }
  91
  92 void PipelineState::set_depth_test(const DepthTest *dt)
  93 {
  94         set(depth_test, dt, DEPTH_TEST);
  95 }
  96
  97 void PipelineState::set_stencil_test(const StencilTest *st)
  98 {
  99         set(stencil_test, st, STENCIL_TEST);
 100 }
 101
 102 void PipelineState::set_blend(const Blend *b)
 103 {
 104         set(blend, b, BLEND);
 105 }
 106
 107 } // namespace GL
 108 } // namespace Msp