ref: 94b7bcdc3bcc8815cc7132c7a0348f7a8746d478
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 #define TGL_FEATURE_ARRAYS 1 #define TGL_FEATURE_DISPLAYLISTS 1 #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 #define TGL_FEATURE_BLEND 1 #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 #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 1 /*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.*/ #define TGL_FEATURE_MULTITHREADED_DRAWPIXELS 1 #define TGL_FEATURE_MULTITHREADED_COPY_TEXIMAGE_2D 1 #define TGL_FEATURE_MULTITHREADED_ZB_COPYBUFFER 0 /* !!!!!WARNING!!!!! TGL_FEATURE_ALIGNAS assumes that the implementation's malloc (AND REALLOC) are 16-byte aligned. Disabled by default for compatibility- you should only enable this if you KNOW that the target ALWAYS returns 16-byte aligned pointers. */ #define TGL_FEATURE_ALIGNAS 0 /* Optimization hint- cost of branching. 0- branching has zero cost, avoid extraneous code. 1- Branching has some cost, allow some extraneous code 2- Branching has extreme cost, allow a lot of extraneous code. Modern processors work best on this setting. */ #define TGL_OPTIMIZATION_HINT_BRANCH_COST 2 #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 #define TGL_FEATURE_16_BITS 0 #define TGL_FEATURE_32_BITS 1 #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 1.0 #endif /* _tgl_features_h_ */