Revisiting rendering

1 files changed, 21 insertions, 2 deletions

diff --git a/src/rendering/include/engine/rendering/rendering.h b/src/rendering/include/engine/rendering/rendering.h
index abfb8d9..c5f805e 100644
--- a/src/rendering/include/engine/rendering/rendering.h
+++ b/src/rendering/include/engine/rendering/rendering.h
@@ -80,8 +80,15 @@ typedef enum {
   ShaderBuffer_DataType_f32            = 0b0010000000000, // 1024
   ShaderBuffer_DataType_f64            = 0b0011000000000, // 1536
 
-  ShaderBuffer_DataType_i32            = 0b0100000000000, // 2048
-  ShaderBuffer_DataType_i64            = 0b0101000000000, // 2560
+  ShaderBuffer_DataType_i8             = 0b0100000000000, // 2048
+  ShaderBuffer_DataType_i16            = 0b0101000000000, // 2560
+  ShaderBuffer_DataType_i32            = 0b0110000000000, // 3072
+  ShaderBuffer_DataType_i64            = 0b0111000000000, // 3584
+
+  ShaderBuffer_DataType_u8             = 0b1000000000000, // 4096
+  ShaderBuffer_DataType_u16            = 0b1001000000000, // 4608
+  ShaderBuffer_DataType_u32            = 0b1010000000000, // 5120
+  ShaderBuffer_DataType_u64            = 0b1011000000000, // 5632
 } ShaderBufferFlag;
 
 typedef struct {
@@ -101,6 +108,13 @@ typedef struct {
   void* data;
 } ShaderBuffer;
 
+// SHADERBUFFER_NEW is a constructor that takes the
+// * type T, as one of f32, f64, i8, i16, i32, i64, u8, u16, u32, or u64.
+// * COUNT, number of elements in the buffer
+// * COMPONENTS, number of elements to be grouped together, ie. 3 for a vec3.
+// * DATA, the buffer (it is pointed to automatically)
+// * FLAGS, are low-level GL flags that hints the access frequency, the access
+//   type, and what buffer type it is, such as "data" or an index buffer.
 #define SHADERBUFFER_NEW(T, COUNT, COMPONENTS, DATA, FLAGS) \
   (ShaderBuffer){ \
     .buffername = 0, \
@@ -178,6 +192,11 @@ ShaderBufferFlag ShaderBuffer_get_access_type(u64 flags);
 ShaderBufferFlag ShaderBuffer_get_type(u64 flags);
 ShaderBufferFlag ShaderBuffer_get_data_type(u64 flags);
 
+/* Conversion to GL types */
+u32 ShaderBuffer_get_gl_type(u64 flags);
+u32 ShaderBuffer_get_gl_accesstype(u64 flags);
+u32 ShaderBuffer_get_gl_datatype(u64 flags);
+
 /* Rendering functions */
 void render_begin(Window* w);
 void render_present(Window* w);