big rendering overhaul (cleaning and api abstraction)

src/rendering/twn_deferred_commands.h

@@ -12,7 +12,7 @@
 typedef enum {
     PIPELINE_NO,
     PIPELINE_SPACE,
-    PIPELINE_2D,
+    PIPELINE_2D, /* TODO: rename to PIPELINE_PLANE? */
 } Pipeline;
 
 
@@ -30,25 +30,27 @@ typedef struct {
 typedef struct {
     AttributeArrayPointer vertices;
     AttributeArrayPointer texcoords;
-
-    bool constant_colored;
     union {
-        AttributeArrayPointer colors;        
+        AttributeArrayPointer colors;
         Color color;
     };
 
-    bool textured, texture_repeat, uses_gpu_key;
+    double depth_range_low, depth_range_high;
+
+    Pipeline pipeline;
+    TextureMode texture_mode;
+
     TextureKey texture_key;
     GPUTexture gpu_texture;
 
+    /* could be either `element_count` with supplied `element_buffer`, or this, but not both */
+    uint32_t primitive_count;
     uint32_t element_buffer;
     uint32_t element_count;
     uint32_t range_start, range_end;
 
-    /* could be either `element_count` with supplied `element_buffer`, or this, but not both */
-    uint32_t primitive_count;
-
-    double depth_range_low, depth_range_high;
+    bool constant_colored;
+    bool textured, texture_repeat, uses_gpu_key;
 } DeferredCommandDraw;
 
 
@@ -65,47 +67,17 @@ typedef struct {
 } DeferredCommandClear;
 
 
-typedef struct {
-    Pipeline pipeline;
-} DeferredCommandUsePipeline;
-
-
-typedef struct {
-    TextureMode mode;
-} DeferredCommandUseTextureMode;
-
-
-typedef struct {
-    double low, high;
-} DeferredCommandDepthRange;
-
-
-typedef struct {
-    float start, end, density;
-    Color color;
-} DeferredCommandApplyFog;
-
-
 typedef struct {
     enum DeferredCommandType {
         DEFERRED_COMMAND_TYPE_DRAW,
         DEFERRED_COMMAND_TYPE_DRAW_SKYBOX,
         DEFERRED_COMMAND_TYPE_CLEAR,
-        DEFERRED_COMMAND_TYPE_USE_PIPIELINE,
-        DEFERRED_COMMAND_TYPE_USE_TEXTURE_MODE,
-        DEFERRED_COMMAND_TYPE_DEPTH_RANGE,
-        DEFERRED_COMMAND_TYPE_APPLY_FOG,
-        DEFERRED_COMMAND_TYPE_POP_FOG,
     } type;
 
     union {
         DeferredCommandDraw draw;
         DeferredCommandDrawSkybox draw_skybox;
         DeferredCommandClear clear;
-        DeferredCommandUsePipeline use_pipeline;
-        DeferredCommandUseTextureMode use_texture_mode;
-        DeferredCommandDepthRange depth_range;
-        DeferredCommandApplyFog apply_fog;
     };
 } DeferredCommand;