-#include <msp/gl/extensions/arb_enhanced_layouts.h>
-#include <msp/gl/extensions/arb_explicit_attrib_location.h>
-#include <msp/gl/extensions/arb_explicit_uniform_location.h>
-#include <msp/gl/extensions/arb_gpu_shader5.h>
-#include <msp/gl/extensions/arb_separate_shader_objects.h>
-#include <msp/gl/extensions/arb_uniform_buffer_object.h>
-#include <msp/gl/extensions/ext_gpu_shader4.h>
-#include <msp/gl/extensions/ext_texture_array.h>
-#include <msp/gl/misc.h>
+#include <stdexcept>
#include "features.h"
+using namespace std;
+
namespace Msp {
namespace GL {
namespace SL {
-Features::Features():
- gl_api(OPENGL),
- arb_enhanced_layouts(false),
- arb_explicit_attrib_location(false),
- arb_explicit_uniform_location(false),
- arb_gpu_shader5(false),
- arb_separate_shader_objects(false),
- arb_uniform_buffer_object(false),
- ext_gpu_shader4(false),
- ext_texture_array(false),
- constant_id_range(0x80000000U),
- uniform_binding_range(84),
- texture_binding_range(96)
-{ }
-
-Features Features::from_context()
+Features Features::from_api_version(GraphicsApi api, const Version &ver)
{
Features features;
- features.gl_api = get_gl_api();
- features.glsl_version = get_glsl_version();
- features.arb_enhanced_layouts = ARB_enhanced_layouts;
- features.arb_explicit_attrib_location = ARB_explicit_attrib_location;
- features.arb_explicit_uniform_location = ARB_explicit_uniform_location;
- features.arb_gpu_shader5 = ARB_gpu_shader5;
- features.arb_separate_shader_objects = ARB_separate_shader_objects;
- features.arb_uniform_buffer_object = ARB_uniform_buffer_object;
- features.ext_gpu_shader4 = EXT_gpu_shader4;
- features.ext_texture_array = EXT_texture_array;
- features.uniform_binding_range = get_i(GL_MAX_UNIFORM_BUFFER_BINDINGS);
- features.texture_binding_range = get_i(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS);
- return features;
-}
-
-Features Features::from_version(const Version &ver)
-{
- Features features;
- features.gl_api = OPENGL;
+ features.target_api = api;
features.glsl_version = ver;
- features.arb_enhanced_layouts = (ver>=Version(4, 40));
- features.arb_explicit_attrib_location = (ver>=Version(1, 30));
- features.arb_explicit_uniform_location = (ver>=Version(4, 30));
- features.arb_gpu_shader5 = (ver>=Version(4, 0));
- features.arb_separate_shader_objects = (ver>=Version(4, 10));
- features.arb_uniform_buffer_object = (ver>=Version(1, 50));
- features.ext_gpu_shader4 = (ver>=Version(1, 20));
- features.ext_texture_array = (ver>=Version(1, 30));
- features.uniform_binding_range = (ver>=Version(4, 30) ? 84 : ver>=Version(4, 0) ? 60 :
- ver>=Version(3, 30) ? 36 : 24);
- features.texture_binding_range = (ver>=Version(4, 30) ? 96 : ver>=Version(4, 0) ? 80 :
- ver>=Version(1, 50) ? 48 : ver>=Version(1, 40) ? 32 : 16);
+ switch(api)
+ {
+ case OPENGL:
+ if(ver.major==2)
+ features.glsl_version = Version(1, (ver.minor+1)*10);
+ else if(ver.major==3 && ver.minor<3)
+ features.glsl_version = Version(1, (ver.minor+3)*10);
+ else
+ features.glsl_version = Version(ver.major, ver.minor*10);
+
+ features.arb_enhanced_layouts = (ver>=Version(4, 4));
+ features.arb_explicit_attrib_location = (ver>=Version(3, 3));
+ features.arb_explicit_uniform_location = (ver>=Version(4, 3));
+ features.arb_gpu_shader5 = (ver>=Version(4, 0));
+ features.arb_separate_shader_objects = (ver>=Version(4, 1));
+ features.arb_uniform_buffer_object = (ver>=Version(3, 2));
+ features.ext_gpu_shader4 = (ver>=Version(2, 1));
+ features.ext_texture_array = (ver>=Version(3, 0));
+ features.uniform_binding_range = (ver>=Version(4, 3) ? 84 : ver>=Version(4, 0) ? 60 :
+ ver>=Version(3, 3) ? 36 : 24);
+ features.texture_binding_range = (ver>=Version(4, 3) ? 96 : ver>=Version(4, 0) ? 80 :
+ ver>=Version(3, 2) ? 48 : ver>=Version(1, 4) ? 32 : 16);
+ features.storage_texture_binding_range = 8;
+ break;
+ case OPENGL_ES:
+ if(ver.major==2)
+ features.glsl_version = Version(1, 0);
+ else
+ features.glsl_version = Version(ver.major, ver.minor*10);
+
+ features.arb_enhanced_layouts = (ver>=Version(3, 2));
+ features.arb_explicit_attrib_location = (ver>=Version(3, 0));
+ features.arb_explicit_uniform_location = (ver>=Version(3, 1));
+ features.arb_gpu_shader5 = (ver>=Version(3, 2));
+ features.arb_separate_shader_objects = (ver>=Version(3, 1));
+ features.arb_uniform_buffer_object = (ver>=Version(3, 0));
+ features.ext_gpu_shader4 = (ver>=Version(3, 0));
+ features.ext_texture_array = (ver>=Version(3, 0));
+ features.uniform_binding_range = (ver>=Version(3, 2) ? 72 : ver>=Version(3, 1) ? 36 : 24);
+ features.texture_binding_range = (ver>=Version(3, 2) ? 96 : ver>=Version(3, 1) ? 48 :
+ ver>=Version(3, 0) ? 32 : 8);
+ features.storage_texture_binding_range = 4;
+ break;
+ case VULKAN:
+ features.glsl_version = Version(4, 60);
+ features.uniform_binding_range = 72;
+ features.texture_binding_range = 96;
+ features.storage_texture_binding_range = 24;
+ break;
+ default:
+ throw invalid_argument("Features::from_api_version");
+ }
return features;
}
-Features Features::latest()
+Features Features::latest(GraphicsApi api)
{
- return from_version(Version(4, 60));
+ switch(api)
+ {
+ case OPENGL:
+ return from_api_version(api, Version(4, 6));
+ case OPENGL_ES:
+ return from_api_version(api, Version(3, 2));
+ case VULKAN:
+ return from_api_version(api, Version(1, 2));
+ default:
+ throw invalid_argument("Features::latest");
+ }
}
} // namespace SL