source/core/pipelinestate.cpp

   1 #include <stdexcept>
   2 #include <msp/core/algorithm.h>
   3 #include <msp/io/print.h>
   4 #include "error.h"
   5 #include "pipelinestate.h"
   6 #include "program.h"
   7 #include "uniformblock.h"
   8
   9 using namespace std;
  10
  11 namespace Msp {
  12 namespace GL {
  13
  14 template<typename T>
  15 void PipelineState::set(T &target, const T &value, unsigned flag)
  16 {
  17         if(value!=target)
  18         {
  19                 target = value;
  20                 changes |= flag;
  21         }
  22 }
  23
  24 void PipelineState::set_framebuffer(const Framebuffer *f)
  25 {
  26         set(framebuffer, f, FRAMEBUFFER);
  27 }
  28
  29 void PipelineState::set_viewport(const Rect &v)
  30 {
  31         set(viewport, v, VIEWPORT);
  32 }
  33
  34 void PipelineState::set_scissor(const Rect &s)
  35 {
  36         set(scissor, s, SCISSOR);
  37 }
  38
  39 void PipelineState::set_shader_program(const Program *p)
  40 {
  41         set(shprog, p, SHPROG);
  42 }
  43
  44 void PipelineState::set_uniform_block(int binding, const UniformBlock *block)
  45 {
  46         auto i = lower_bound_member(resources, binding, &BoundResource::binding);
  47         if(i==resources.end() || i->binding!=binding)
  48                 i = resources.insert(i, BoundResource(binding));
  49
  50         ResourceType type = (block ? UNIFORM_BLOCK : NO_RESOURCE);
  51         const Buffer *buffer = (block ? block->get_buffer() : 0);
  52         if(i->type!=type || block!=i->block || buffer!=i->buffer || binding<0)
  53         {
  54                 i->type = type;
  55                 i->block = block;
  56                 i->buffer = buffer;
  57                 i->changed = true;
  58                 i->used = block;
  59                 changes |= RESOURCES;
  60         }
  61 }
  62
  63 void PipelineState::set_texture(unsigned binding, const Texture *tex, const Sampler *samp)
  64 {
  65         set_texture(binding, tex, -1, samp);
  66 }
  67
  68 void PipelineState::set_texture(unsigned binding, const Texture *tex, int level, const Sampler *samp)
  69 {
  70         if((tex!=0)!=(samp!=0))
  71                 throw invalid_argument("PipelineState::set_texture");
  72         if(level>=0 && !can_bind_tex_level(level))
  73                 throw invalid_operation("PipelineState::set_texture");
  74
  75         set_texture_resource(binding, tex, level, samp);
  76 }
  77
  78 void PipelineState::set_storage_texture(unsigned binding, const Texture *tex)
  79 {
  80         set_texture_resource(binding, tex, 0, 0);
  81 }
  82
  83 void PipelineState::set_texture_resource(unsigned binding, const Texture *tex, int level, const Sampler *samp)
  84 {
  85         auto i = lower_bound_member(resources, static_cast<int>(binding), &BoundResource::binding);
  86         if(i==resources.end() || i->binding!=static_cast<int>(binding))
  87                 i = resources.insert(i, BoundResource(binding));
  88
  89         ResourceType type = (tex ? samp ? SAMPLED_TEXTURE : STORAGE_TEXTURE : NO_RESOURCE);
  90         if(i->type!=type || tex!=i->texture || level!=i->mip_level || samp!=i->sampler)
  91         {
  92                 i->type = type;
  93                 i->texture = tex;
  94                 i->sampler = samp;
  95                 i->mip_level = level;
  96                 i->changed = true;
  97                 i->used = tex;
  98                 changes |= RESOURCES;
  99         }
 100 }
 101
 102 void PipelineState::set_vertex_setup(const VertexSetup *s)
 103 {
 104         set(vertex_setup, s, VERTEX_SETUP);
 105 }
 106
 107 void PipelineState::set_primitive_type(PrimitiveType t)
 108 {
 109         set(primitive_type, t, PRIMITIVE_TYPE);
 110 }
 111
 112 void PipelineState::set_patch_size(unsigned s)
 113 {
 114         set(patch_size, s, PATCH_SIZE);
 115 }
 116
 117 void PipelineState::set_front_face(FaceWinding w)
 118 {
 119         set(front_face, w, FACE_CULL);
 120 }
 121
 122 void PipelineState::set_face_cull(CullMode c)
 123 {
 124         set(face_cull, c, FACE_CULL);
 125 }
 126
 127 void PipelineState::set_depth_test(const DepthTest &dt)
 128 {
 129         set(depth_test, dt, DEPTH_TEST);
 130 }
 131
 132 void PipelineState::set_stencil_test(const StencilTest &st)
 133 {
 134         set(stencil_test, st, STENCIL_TEST);
 135 }
 136
 137 void PipelineState::set_blend(const Blend &b)
 138 {
 139         set(blend, b, BLEND);
 140 }
 141
 142 void PipelineState::check_bound_resources() const
 143 {
 144         if(!shprog)
 145                 return;
 146
 147         for(const ReflectData::UniformBlockInfo &b: shprog->get_uniform_blocks())
 148                 if(b.bind_point!=ReflectData::DEFAULT_BLOCK)
 149                 {
 150                         auto i = lower_bound_member(resources, b.bind_point, &PipelineState::BoundResource::binding);
 151                         if(i==resources.end() || i->binding!=b.bind_point)
 152                                 IO::print(IO::cerr, "Warning: No resource present for uniform block binding %d:%d (%s)\n", b.bind_point>>20, b.bind_point&0xFFFFF, b.name);
 153                 }
 154
 155         for(const ReflectData::UniformInfo &u: shprog->get_uniforms())
 156                 if(u.binding>=0 && is_image(u.type))
 157                 {
 158                         auto i = lower_bound_member(resources, u.binding, &PipelineState::BoundResource::binding);
 159                         if(i==resources.end() || i->binding!=u.binding)
 160                                 IO::print(IO::cerr, "Warning: No resource present for texture binding %d:%d (%s)\n", u.binding>>20, u.binding&0xFFFFF, u.name);
 161                 }
 162 }
 163
 164 } // namespace GL
 165 } // namespace Msp