ref: 4e839fac0e65d405d1d4c7edf3107cafbce1e2b8
dir: /include/zfeatures.h/
#ifndef _tgl_features_h_ #define _tgl_features_h_ /* It is possible to enable/disable (compile time) features in this header file. */ //Enables setting the error flags when there's an error, so you can check it with glGetError //Disabling this has slight performance gains. #define TGL_FEATURE_ERROR_CHECK 0 //Strict out-of-memory checking. All OpenGL function calls are invalidated (ALL OF THEM) if a GL_OUT_OF_MEMORY error occurs. //This means that TinyGL has to constantly check all gl_malloc() attempts for errors and the state of the error state variable. //The checks slow down the renderer so it is not recommended , but //it's in the GL spec that this should occur. #define TGL_FEATURE_STRICT_OOM_CHECKS 0 //Swap between using the inline'd malloc(), calloc(), and free() in zbuffer.h, or //a replacement gl_malloc(), gl_zalloc(), and gl_free() in memory.c #define TGL_FEATURE_CUSTOM_MALLOC 0 //Use Fast Inverse Square Root. Toggleable because it's actually slower, //And because some systems may have float types which are incompatible with it. #define TGL_FEATURE_FISR 1 //Clientside Arrays #define TGL_FEATURE_ARRAYS 1 //This library has a super cool opcode system based on function pointers, it's pretty fast too. #define TGL_FEATURE_DISPLAYLISTS 1 //Lighting is expensive on texture-mapped polygons. #define TGL_FEATURE_LIT_TEXTURES 1 //Enable the patternized "discard"-ing of pixels. #define TGL_FEATURE_POLYGON_STIPPLE 0 //Enable the use of GL_SELECT and GL_FEEDBACK #define TGL_FEATURE_ALT_RENDERMODES 0 //Enable the rendering of large polygons (in terms of vertex count) //Also enabled the rendering of line loops. //the maximum number of vertices in a polygon is defined in zgl.h #define TGL_FEATURE_GL_POLYGON 0 //Enable GL_BLEND functionality #define TGL_FEATURE_BLEND 1 //Enable blending in glDrawPixels, which slows it down a lot and makes it unsuitable for a lot of things. #define TGL_FEATURE_BLEND_DRAW_PIXELS 0 //The width of textures as a power of 2. The default is 8, or 256x256 textures. #define TGL_FEATURE_TEXTURE_POW2 8 #define TGL_FEATURE_TEXTURE_DIM (1<<TGL_FEATURE_TEXTURE_POW2) //A stipple pattern is 128 bytes in size. #define TGL_POLYGON_STIPPLE_BYTES 128 //A stipple pattern is 2^5 (32) bits wide. #define TGL_POLYGON_STIPPLE_POW2_WIDTH 5 //The stipple pattern mask (the last bits of the screen coordinates used for indexing) //The default pattern is 32 bits wide and 32 bits tall, or 4 bytes per row and 32 tall, 4 * 32 = 128 bytes. #define TGL_POLYGON_STIPPLE_MASK_X 31 #define TGL_POLYGON_STIPPLE_MASK_Y 31 //Use lookup tables for calculating specular light. #define TGL_FEATURE_SPECULAR_BUFFERS 0 //Prevent ZB_copyFrameBuffer from copying certain colors. #define TGL_FEATURE_NO_COPY_COLOR 0 //Don't draw (texture mapped) pixels whose color is the NO_DRAW_COLOR #define TGL_FEATURE_NO_DRAW_COLOR 0 //Regardless of the current clear color, always clear using the NO_COPY_COLOR #define TGL_FEATURE_FORCE_CLEAR_NO_COPY_COLOR 0 #define TGL_NO_COPY_COLOR 0xff00ff #define TGL_NO_DRAW_COLOR 0xff00ff //^ solid debug pink. #define TGL_COLOR_MASK 0x00ffffff //^ mask to check for while drawing/copying. //MULTITHREADING OPTIONS, only applicable if compiled with -fopenmp //Enable DrawPixels to offload the rendering of individual scanlines to separate threads. #define TGL_FEATURE_MULTITHREADED_DRAWPIXELS 0 //Enable multithreading glCopyTexImage2D #define TGL_FEATURE_MULTITHREADED_COPY_TEXIMAGE_2D 1 //Enable multithreading the ZB_CopyBuffer operation. #define TGL_FEATURE_MULTITHREADED_ZB_COPYBUFFER 0 //Enable stdalign #define TGL_FEATURE_ALIGNAS 1 //Disable it for TinyC #ifdef __TINYC__ #undef TGL_FEATURE_ALIGNAS #define TGL_FEATURE_ALIGNAS 0 #endif #if TGL_FEATURE_ALIGNAS == 1 #include <stdalign.h> #define TGL_ALIGN alignas(16) #else #define TGL_ALIGN /*a comment*/ #endif //DO NOT TURN THESE ON, I don't maintain them and I actively #error them out. #define TGL_FEATURE_8_BITS 0 #define TGL_FEATURE_24_BITS 0 //These are the only maintained modes. #define TGL_FEATURE_16_BITS 0 #define TGL_FEATURE_32_BITS 1 //#define TGL_FEATURE_RENDER_BITS 15 //#define TGL_FEATURE_RENDER_BITS 16 #if TGL_FEATURE_32_BITS == 1 #define TGL_FEATURE_RENDER_BITS 32 #elif TGL_FEATURE_16_BITS == 1 #define TGL_FEATURE_RENDER_BITS 16 #else #error "Unsupported TGL_FEATURE_XX_BITS" #endif //The fraction bits in the fixed point values used for S and T in interpolatiion. #define ZB_POINT_S_FRAC_BITS 10 #define ZB_POINT_T_FRAC_BITS (ZB_POINT_S_FRAC_BITS + TGL_FEATURE_TEXTURE_POW2) //Test the compatibility of the target platform at glInit() time. #define TGL_FEATURE_TINYGL_RUNTIME_COMPAT_TEST 1 #define TINYGL_VERSION 0.8 #endif /* _tgl_features_h_ */