add bindings friendly functions

6 files changed, 81 insertions, 16 deletions

diff --git a/include/celeritas.h b/include/celeritas.h
index 425436c..9ba741b 100644
--- a/include/celeritas.h
+++ b/include/celeritas.h
@@ -33,9 +33,9 @@ void core_bringup();
 void core_shutdown();
 bool should_window_close();
 
-void render_frame_begin();
-void render_frame_draw();
-void render_frame_end();
+void frame_begin();
+void frame_draw();
+void frame_end();
 
 // Assets
 model_handle model_load(const char* filepath);
@@ -47,6 +47,8 @@ typedef struct render_entity {
   transform3d transform;
 } render_entity;
 
+void render_frame_begin();
+
 // Scene
 typedef struct directional_light {} directional_light;
 typedef struct point_light {} point_light;
diff --git a/src/core.c b/src/core.c
index 17424b3..ffd72a5 100644
--- a/src/core.c
+++ b/src/core.c
@@ -58,7 +58,7 @@ void core_bringup() {
 
 #include <glfw3.h>
 
-bool should_window_close(core* core) { glfwWindowShouldClose(core->renderer.window); }
+/* bool should_window_close(core* core) { glfwWindowShouldClose(core->renderer.window); } */
 void core_input_update() { input_update(&g_core.input); }
 void core_frame_begin(core* core) { render_frame_begin(&core->renderer); }
 void core_frame_end(core* core) { render_frame_end(&core->renderer); }
@@ -72,3 +72,7 @@ void core_shutdown() {
 bool should_exit() {
   return key_just_released(KEYCODE_ESCAPE) || glfwWindowShouldClose(g_core.renderer.window);
 }
+
+void frame_begin() { render_frame_begin(&g_core.renderer); }
+void frame_draw() {}
+void frame_end() { render_frame_end(&g_core.renderer); }
diff --git a/src/core.h b/src/core.h
index ec8cde9..db711d0 100644
--- a/src/core.h
+++ b/src/core.h
@@ -31,4 +31,8 @@ void core_bringup();
 void core_shutdown();
 bool should_exit();
 
+void frame_begin();
+void frame_draw();
+void frame_end();
+
 void core_input_update();
diff --git a/src/renderer/render.c b/src/renderer/render.c
index f73578e..10589e5 100644
--- a/src/renderer/render.c
+++ b/src/renderer/render.c
@@ -1,6 +1,7 @@
 #include "render.h"
 #include <glfw3.h>
 #include "camera.h"
+#include "file.h"
 #include "log.h"
 #include "ral.h"
 
@@ -35,20 +36,15 @@ bool renderer_init(renderer* ren) {
 
   glfwMakeContextCurrent(ren->window);
 
-  DEBUG("Start backend init");
+  DEBUG("Start gpu backend init");
 
-  gpu_backend_init("Celeritas Engine - Vulkan", window);
+  if (!gpu_backend_init("Celeritas Engine - Vulkan", window)) {
+    FATAL("Couldnt load graphics api backend");
+    return false;
+  }
   gpu_device_create(&ren->device);  // TODO: handle errors
   gpu_swapchain_create(&ren->swapchain);
 
-  // DEBUG("init graphics api backend");
-  // if (!gfx_backend_init(ren)) {
-  // FATAL("Couldnt load graphics api backend");
-  // return false;
-  // }
-
-  default_pipelines_init(ren);
-
   // ren->blinn_phong =
   //     shader_create_separate("assets/shaders/blinn_phong.vert",
   //     "assets/shaders/blinn_phong.frag");
@@ -58,6 +54,9 @@ bool renderer_init(renderer* ren) {
 
   // default_material_init();
 
+  // Create default rendering pipeline
+  default_pipelines_init(ren);
+
   return true;
 }
 void renderer_shutdown(renderer* ren) {
@@ -71,10 +70,63 @@ void default_pipelines_init(renderer* ren) {
   // graphics_pipeline_desc gfx = {
   // };
   // ren->static_opaque_pipeline = gpu_graphics_pipeline_create();
+  arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024);
+
+  gpu_renderpass_desc pass_description = {};
+  gpu_renderpass* renderpass = gpu_renderpass_create(&pass_description);
+
+  ren->default_renderpass = *renderpass;
+
+  str8 vert_path = str8lit("celeritas-core/build/linux/x86_64/debug/triangle.vert.spv");
+  str8 frag_path = str8lit("celeritas-core/build/linux/x86_64/debug/triangle.frag.spv");
+  str8_opt vertex_shader = str8_from_file(&scratch, vert_path);
+  str8_opt fragment_shader = str8_from_file(&scratch, frag_path);
+  if (!vertex_shader.has_value || !fragment_shader.has_value) {
+    ERROR_EXIT("Failed to load shaders from disk")
+  }
+
+  struct graphics_pipeline_desc pipeline_description = {
+    .debug_name = "Basic Pipeline",
+    .vs = { .debug_name = "Triangle Vertex Shader",
+            .filepath = vert_path,
+            .code = vertex_shader.contents,
+            .is_spirv = true },
+    .fs = { .debug_name = "Triangle Fragment Shader",
+            .filepath = frag_path,
+            .code = fragment_shader.contents,
+            .is_spirv = true },
+    .renderpass = renderpass,
+    .wireframe = false,
+    .depth_test = false
+  };
+  gpu_pipeline* gfx_pipeline = gpu_graphics_pipeline_create(pipeline_description);
+  ren->static_opaque_pipeline = *gfx_pipeline;
 }
 
-void render_frame_begin(renderer* ren) {}
-void render_frame_end(renderer* ren) {}
+void render_frame_begin(renderer* ren) {
+    ren->frame_aborted = false;
+    if (!gpu_backend_begin_frame()) {
+      ren->frame_aborted = true;
+      return;
+    }
+    gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder();
+    // begin recording
+    gpu_cmd_encoder_begin(*enc);
+    gpu_cmd_encoder_begin_render(enc, &ren->default_renderpass);
+    encode_bind_pipeline(enc, PIPELINE_GRAPHICS, &ren->static_opaque_pipeline);
+    encode_set_default_settings(enc);
+}
+void render_frame_end(renderer* ren) {
+  if (ren->frame_aborted) {
+    return;
+  }
+    gpu_temp_draw();
+    gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder();
+    gpu_cmd_encoder_end_render(enc);
+    gpu_cmd_buffer buf = gpu_cmd_encoder_finish(enc);
+    gpu_queue_submit(&buf);
+    gpu_backend_end_frame();
+}
 void render_frame_draw(renderer* ren) {}
 
 void gfx_backend_draw_frame(renderer* ren, camera* camera, mat4 model, texture* tex) {}
diff --git a/src/renderer/render_types.h b/src/renderer/render_types.h
index 3763967..06a8415 100644
--- a/src/renderer/render_types.h
+++ b/src/renderer/render_types.h
@@ -32,7 +32,9 @@ typedef struct renderer {
   renderer_config config;
   gpu_device device;
   gpu_swapchain swapchain;
+  gpu_renderpass default_renderpass;
   gpu_pipeline static_opaque_pipeline;
+  bool frame_aborted;
 } renderer;
 
 typedef struct geometry_data {
diff --git a/src/systems/input.c b/src/systems/input.c
index fc62db8..5df1159 100644
--- a/src/systems/input.c
+++ b/src/systems/input.c
@@ -25,6 +25,7 @@ bool input_system_init(input_state *input, GLFWwindow *window) {
   assert(input->mouse.x_delta == 0);
   assert(input->mouse.y_delta == 0);
 
+  INFO("Finish input init");
   return true;
 }