source/backends/opengl/deviceinfo_backend.cpp

   1 #include <msp/gl/extensions/arb_enhanced_layouts.h>
   2 #include <msp/gl/extensions/arb_explicit_attrib_location.h>
   3 #include <msp/gl/extensions/arb_explicit_uniform_location.h>
   4 #include <msp/gl/extensions/arb_gpu_shader5.h>
   5 #include <msp/gl/extensions/arb_separate_shader_objects.h>
   6 #include <msp/gl/extensions/arb_uniform_buffer_object.h>
   7 #include <msp/gl/extensions/arb_vertex_shader.h>
   8 #include <msp/gl/extensions/ext_framebuffer_multisample.h>
   9 #include <msp/gl/extensions/ext_framebuffer_object.h>
  10 #include <msp/gl/extensions/ext_gpu_shader4.h>
  11 #include <msp/gl/extensions/ext_texture_array.h>
  12 #include <msp/gl/extensions/ext_texture_filter_anisotropic.h>
  13 #include <msp/gl/extensions/msp_clipping.h>
  14 #include <msp/gl/extensions/nv_fbo_color_attachments.h>
  15 #include "deviceinfo.h"
  16 #include "gl.h"
  17
  18 namespace Msp {
  19 namespace GL {
  20
  21 Limits::Limits()
  22 {
  23         glGetIntegerv(GL_MAX_CLIP_PLANES, reinterpret_cast<int *>(&max_clip_planes));
  24         if(ARB_vertex_shader)
  25         {
  26                 glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, reinterpret_cast<int *>(&max_vertex_attributes));
  27                 glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, reinterpret_cast<int *>(&max_texture_bindings));
  28         }
  29         if(EXT_framebuffer_object)
  30                 glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, reinterpret_cast<int *>(&max_color_attachments));
  31         if(EXT_framebuffer_multisample)
  32                 glGetIntegerv(GL_MAX_SAMPLES, reinterpret_cast<int *>(&max_samples));
  33         if(ARB_uniform_buffer_object)
  34         {
  35                 glGetIntegerv(GL_MAX_UNIFORM_BUFFER_BINDINGS, reinterpret_cast<int *>(&max_uniform_bindings));
  36                 glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, reinterpret_cast<int *>(&uniform_buffer_alignment));
  37         }
  38         if(EXT_texture_filter_anisotropic)
  39                 glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY, &max_anisotropy);
  40 }
  41
  42
  43 DeviceInfo::DeviceInfo()
  44 {
  45         glsl_features.target_api = get_backend_api();
  46         glsl_features.glsl_version = get_glsl_version();
  47         glsl_features.arb_enhanced_layouts = ARB_enhanced_layouts;
  48         glsl_features.arb_explicit_attrib_location = ARB_explicit_attrib_location;
  49         glsl_features.arb_explicit_uniform_location = ARB_explicit_uniform_location;
  50         glsl_features.arb_gpu_shader5 = ARB_gpu_shader5;
  51         glsl_features.arb_separate_shader_objects = ARB_separate_shader_objects;
  52         glsl_features.arb_uniform_buffer_object = ARB_uniform_buffer_object;
  53         glsl_features.ext_gpu_shader4 = EXT_gpu_shader4;
  54         glsl_features.ext_texture_array = EXT_texture_array;
  55         glsl_features.uniform_binding_range = limits.max_uniform_bindings;
  56         glsl_features.texture_binding_range = limits.max_texture_bindings;
  57 }
  58
  59 } // namespace Msp
  60 } // namespace GL