graphics api abstraction

[demo] / src / gfxapi.cc

diff --git a/src/gfxapi.cc b/src/gfxapi.cc
new file mode 100644 (file)
index 0000000..d4464f1
--- /dev/null
+++ b/src/gfxapi.cc
@@ -0,0 +1,99 @@
+#include "opengl/opengl.h"
+#include "vulkan/vk.h"
+
+#include "gfxapi.h"
+
+#include "opengl/mesh-gl.h"
+#include "opengl/texture-gl.h"
+#include "opengl/shader-gl.h"
+
+#include "vulkan/mesh-vk.h"
+#include "vulkan/texture-vk.h"
+
+static Gfx_API api;
+
+void (*gfx_clear)(float r, float g, float b);
+void (*gfx_viewport)(int x, int y, int width, int height);
+
+
+bool gfx_init(Gfx_API api)
+{
+       switch(api) {
+       case GFX_GL:
+               if(!init_opengl())
+                       return false;
+               break;
+       case GFX_VK:
+               if(!init_vulkan())
+                       return false;
+               break;
+       default:
+               return false;
+       }
+
+       ::api = api;
+       return true;
+}
+
+void gfx_cleanup()
+{
+       switch(api) {
+       case GFX_GL:
+               cleanup_opengl();
+               break;
+       case GFX_VK:
+               cleanup_vulkan();
+               break;
+       }
+}
+
+Mesh *gfx_create_mesh()
+{
+       switch(api) {
+       case GFX_GL:
+               return new MeshGL;
+       case GFX_VK:
+               return new MeshVK;
+       }
+}
+Texture *gfx_create_texture()
+{
+       switch(api) {
+       case GFX_GL:
+               return new TextureGL;
+       case GFX_VK:
+               return new TextureVK;
+       }
+}
+
+ShaderProgram *gfx_create_shader_program()
+{
+       switch(api) {
+       case GFX_GL:
+               return new ShaderProgramGL;
+       case GFX_VK:
+               // return new ShaderProgramVK;
+               return 0;
+       }
+}
+
+Shader *gfx_create_shader()
+{
+       switch(api) {
+       case GFX_GL:
+               return new ShaderGL;
+       case GFX_VK:
+               // return new ShaderVK;
+               return 0;
+       }
+}
+
+char *gfx_get_shader_path()
+{
+       switch(api) {
+       case GFX_GL:
+               return (char *)"gl_shaders";
+       case GFX_VK:
+               return (char *)"vk_shaders";
+       }
+}
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