113 lines
4.1 KiB
C
113 lines
4.1 KiB
C
#include <stdbool.h>
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#include <string.h>
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#define RT_DONT_DEFINE_RENDERER_GLOBAL
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#include "config.h"
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#include "dynamic_libs.h"
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#include "gfx.h"
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#include "renderer_api.h"
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/* Attributes are used to bind buffers (or textures) to symbolic values.
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* For example, an attribute might be bound to "CELL_GRID", which would be
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* replaced with the (at the time of the invoke) grid buffer of the current
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* world cell.
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*/
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rt_renderer_api g_renderer;
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static rt_dynlib _renderer_lib;
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static bool _renderer_loaded = false;
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RT_DLLEXPORT RT_CVAR_S(rt_Renderer, "Select the render backend. Available options: [vk], Default: vk", "vk");
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#ifdef RT_STATIC_LIB
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extern void RT_RENDERER_API_FN(RegisterCVars)(void);
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extern rt_result RT_RENDERER_API_FN(Init)(const rt_renderer_init_info *);
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extern void RT_RENDERER_API_FN(Shutdown)(void);
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extern rt_pipeline_handle RT_RENDERER_API_FN(CompilePipeline)(const rt_pipeline_info *);
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extern void RT_RENDERER_API_FN(DestroyPipeline)(rt_pipeline_handle);
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extern rt_render_target_handle
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RT_RENDERER_API_FN(CreateRenderTarget)(const rt_render_target_info *);
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extern void RT_RENDERER_API_FN(DestroyRenderTarget)(rt_render_target_handle);
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#endif
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extern rt_result InitFramegraphManager(void);
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extern void ShutdownFramegraphManager(void);
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static bool LoadRenderer(void) {
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#if !defined(RT_STATIC_LIB)
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#define RETRIEVE_SYMBOL(name, type) \
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g_renderer.name = (type *)rtGetSymbol(_renderer_lib, "rtRen" #name); \
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if (!g_renderer.name) { \
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rtReportError("GFX", \
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"Unable to retrieve renderer function %s from backend %s", \
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#name, \
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rt_Renderer.s); \
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}
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if (strcmp(rt_Renderer.s, "vk") == 0) {
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_renderer_lib = rtOpenLib(RT_DLLNAME("rtvk"));
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if (!_renderer_lib) {
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rtReportError("GFX", "Unable to load renderer backend: %s", RT_DLLNAME("rtvk"));
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return false;
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}
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RETRIEVE_SYMBOL(RegisterCVars, rt_register_renderer_cvars_fn);
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RETRIEVE_SYMBOL(Init, rt_init_renderer_fn);
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RETRIEVE_SYMBOL(Shutdown, rt_shutdown_renderer_fn);
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RETRIEVE_SYMBOL(CompilePipeline, rt_compile_pipeline_fn);
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RETRIEVE_SYMBOL(DestroyPipeline, rt_destroy_pipeline_fn);
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RETRIEVE_SYMBOL(CreateRenderTarget, rt_create_render_target_fn);
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RETRIEVE_SYMBOL(DestroyRenderTarget, rt_destroy_render_target_fn);
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} else {
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rtReportError("GFX",
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"Unsupported renderer backend: (%s) %s",
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rt_Renderer.name,
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rt_Renderer.s);
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return false;
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}
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#undef RETRIEVE_SYMBOL
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#else
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g_renderer.RegisterCVars = &rtRenRegisterCVars;
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g_renderer.Init = &rtRenInit;
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g_renderer.Shutdown = &rtRenShutdown;
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g_renderer.CompilePipeline = &rtRenCompilePipeline;
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g_renderer.DestroyPipeline = &rtRenDestroyPipeline;
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g_renderer.CreateRenderTarget = &rtRenCreateRenderTarget;
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g_renderer.DestroyRenderTarget = &rtRenDestroyRenderTarget;
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#endif
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return true;
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}
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RT_DLLEXPORT void rtRegisterRendererCVars(void) {
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if (!_renderer_loaded) {
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if (!LoadRenderer())
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return;
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_renderer_loaded = true;
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}
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g_renderer.RegisterCVars();
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}
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RT_DLLEXPORT rt_result rtInitGFX(rt_renderer_init_info *renderer_info) {
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if (!_renderer_loaded) {
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if (!LoadRenderer())
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return RT_UNKNOWN_ERROR;
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g_renderer.RegisterCVars();
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}
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rt_result result;
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if ((result = g_renderer.Init(renderer_info)) != RT_SUCCESS)
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return result;
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if ((result = InitFramegraphManager()) != RT_SUCCESS)
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return result;
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return result;
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}
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RT_DLLEXPORT void rtShutdownGFX(void) {
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ShutdownFramegraphManager();
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g_renderer.Shutdown();
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}
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