From 50a84a54e7cc2308ad87bd04e065151a61ffe513 Mon Sep 17 00:00:00 2001
From: Fabrice <fabrice@schaub-dev.xyz>
Date: Wed, 11 Feb 2026 23:32:44 +0100
Subject: generalizing buffer

---
 src/rendering.cc | 47 +++++++++++++----------------------------------
 src/rendering.h  | 22 +++++++++++-----------
 2 files changed, 24 insertions(+), 45 deletions(-)

diff --git a/src/rendering.cc b/src/rendering.cc
index e916d31..8127c13 100644
--- a/src/rendering.cc
+++ b/src/rendering.cc
@@ -155,50 +155,29 @@ bool wayc_atlas_packer_allocate(struct atlas_packer_s* packer, u32 width,
   return true;
 }
 
-bool wayc_vbo_init(vbo_t* vbo, usize size) {
-  wayc_notnull(vbo);
+bool wayc_buffer_init(buffer_t* buffer, usize size) {
+  wayc_notnull(buffer);
 
-  glCreateBuffers(1, vbo);
-  if (*vbo == 0) return false;
+  glCreateBuffers(1, buffer);
+  if (*buffer == 0) return false;
 
-  glNamedBufferStorage(*vbo, size, NULL, GL_DYNAMIC_STORAGE_BIT);
+  glNamedBufferStorage(*buffer, size, nullptr, GL_DYNAMIC_STORAGE_BIT);
   return true;
 }
 
-bool wayc_vbo_upload(vbo_t vbo, usize offset, usize size, const u8* data) {
+bool wayc_buffer_set(buffer_t buffer, usize offset, usize size,
+                     const u8* data) {
   wayc_notnull(data);
 
-  glNamedBufferSubData(vbo, offset, size, data);  // TODO: add error checking
+  glNamedBufferSubData(buffer, offset, size, data);  // TODO: add error checking
   return true;
 }
 
-void wayc_vbo_use(vbo_t vbo) { glBindBuffer(GL_ARRAY_BUFFER, vbo); }
-
-void wayc_vbo_deinit(vbo_t* vbo) {
-  wayc_notnull(vbo);
-  glDeleteBuffers(1, vbo);
-}
-
-bool wayc_ebo_init(ebo_t* ebo, usize size) {
-  wayc_notnull(ebo);
-
-  glCreateBuffers(1, ebo);
-  if (*ebo == 0) return false;
-
-  glNamedBufferStorage(*ebo, size, NULL, GL_DYNAMIC_STORAGE_BIT);
-  return true;
+void wayc_buffer_use(buffer_t buffer, buffer_type_e type) {
+  glBindBuffer(type, buffer);
 }
 
-bool wayc_ebo_upload(ebo_t ebo, usize offset, usize size, const u8* data) {
-  wayc_notnull(data);
-
-  glNamedBufferSubData(ebo, offset, size, data);
-  return true;
-}
-
-void wayc_ebo_use(ebo_t ebo) { glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo); }
-
-void wayc_ebo_deinit(ebo_t* ebo) {
-  wayc_notnull(ebo);
-  glDeleteBuffers(1, ebo);
+void wayc_buffer_deinit(buffer_t* buffer) {
+  wayc_notnull(buffer);
+  glDeleteBuffers(1, buffer);
 }
diff --git a/src/rendering.h b/src/rendering.h
index a3982cf..67f4682 100644
--- a/src/rendering.h
+++ b/src/rendering.h
@@ -6,6 +6,8 @@
 #include "glad.h"
 #include "utils.h"
 
+// TODO: review all structs and use types
+
 enum image_type_e {
   IMAGE_TYPE_2D = GL_TEXTURE_2D,
 };
@@ -80,16 +82,14 @@ struct atlas_packer_s {
 bool wayc_atlas_packer_allocate(struct atlas_packer_s* packer, u32 width,
                                 u32 height, ivec2 out);
 
-typedef u32 vbo_t;
-
-bool wayc_vbo_init(vbo_t* vbo, usize size);
-bool wayc_vbo_upload(vbo_t vbo, usize offset, usize size, const u8* data);
-void wayc_vbo_use(vbo_t vbo);
-void wayc_vbo_deinit(vbo_t* vbo);
+enum buffer_type_e {
+  BUFFER_TYPE_VERTEX = GL_ARRAY_BUFFER,
+  BUFFER_TYPE_INDEX = GL_ELEMENT_ARRAY_BUFFER,
+};
 
-typedef u32 ebo_t;
+typedef u32 buffer_t;
 
-bool wayc_ebo_init(ebo_t* ebo, usize size);
-bool wayc_ebo_upload(ebo_t ebo, usize offset, usize size, const u8* data);
-void wayc_ebo_use(ebo_t ebo);
-void wayc_ebo_deinit(ebo_t* ebo);
+bool wayc_buffer_init(buffer_t* buffer, usize size);
+bool wayc_buffer_set(buffer_t buffer, usize offset, usize size, const u8* data);
+void wayc_buffer_use(buffer_t buffer, buffer_type_e type);
+void wayc_buffer_deinit(buffer_t* buffer);
-- 
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