ref: e99c9f329ea7b242e903839d0c1dc8399bba9f7b
dir: /INTEGRATION/
I will teach you here how to integrate TinyGL into almost any project. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Method 1: Organized or "I'm a master software architect" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ step 1: Copy the src directory into your project, and name it something like "src_tinygl" step 2: copy the contents of the include folder to your project's include folder, exactly one level above the aformentioned src directory. step 2.5: If you are using an alternate directory structure, adjust the includes. step 3: copy and alter the config.mk file into your project directory above the src_tinygl directory. You should modify the CC and CFLAGS to suit your project. step 4: add a step in your main project makefile to cd into the src_tinygl directory and `make -B` step 5: add a step in your main project makefile to copy libTinyGL.a from src_tinygl to the aforementioned "lib" directory. step 6: Compile your programs by including from the include directory (relative pathing is probably easiest, but you can do -Isystem) and linking to libTinyGL.a ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Method 2: "One big program!" or "help I don't have ar in my toolchain!!!!" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ step 1: Place everything in 'src' from this repository in a single folder. step 2: Place everything from 'include' into a single folder. step 3: adjust the #includes in all files so that they point to the correct target files. This will likely be an iterative process of compiling, seeing an error message about a missing include, and fixing it. step 4 v1: Compile all relevant C source files into your "one big program". No need for a ".a" statically linked library. you must link against the C standard library and specifically '-lm' for the math library. step 4 v2: Compile all relevant C source files into objects, and then use them later. You do not have to specify any linkages. In your final binary, you must link against the standard library and -lm. Note that ar is just a tool which merges object files into convenient archives. ar is not needed to build TinyGL. Whatever you're using to compile C source files will compile TinyGL. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Q&A ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ What can I use TinyGL for? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1) Graphics library replacement. Who needs GPUs, am i right? 2) Cross platform code. TinyGL should run unmodified on almost any platform with a conformant floating point implementation and 32 bit integer types. 3) Serverside rendering. Put TinyGL in a program running on a server and stream the video over the network. Who needs X? 4) Pre-rendered graphics. Since TinyGL runs entirely on the CPU, it is very easy to customize its pipeline to create unique and interesting things. TinyGL 5) Porting programs written for OpenGL. TinyGL is *NOT* a standards-compliant OpenGL implementation, and will never be. TinyGL is NOT OpenGL and should not be confused with it. That said, since TinyGL's API is very *similar* to OpenGL's API, and since TinyGL will run on even the most obscure and inane architectures... once you port C code to using TinyGL, it is almost automatically usable on almost any device you can imagine. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ TinyGL uses too much memory? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The library's defaults for the maximum number of textures, display lists, lights, and so-on are optimized for platforms with abundant memory. Configure these and other defaults in 'zgl.h' or 'zfeatures.h' Consider also reducing the texture size from the default 256x256 to 64x64 or 32x32 (for that N64 vibe) if you're desparate. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ How do I use 16 bit color? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ see zfeatures.h, you will have to modify these lines for full 16 bit compatibility: These lines are setup for 32 bit color,if you are going to use the NO_DRAW_COLOR or NO_COPY_COLOR then you should set these differently: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #define TGL_NO_COPY_COLOR 0xff00ff #define TGL_NO_DRAW_COLOR 0xff00ff /* solid debug pink.*/ #define TGL_COLOR_MASK 0x00ffffff ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ These lines configure the actual color bit depth: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #define TGL_FEATURE_16_BITS 0 #define TGL_FEATURE_32_BITS 1