Now I need to pass this from memory into SDL or SDLimage to load it as texture. So now I have an array of vectors or pointers or any other types (depending how you read the binary file). Later on I just open that binary file and load pictures into memory from one single file. This is how I load a texture into openGL, code which I got from another site. Basically I combine binary(PNG) files into one larger file. However, I’m trying to get the same effect in openGL, drawing 2d graphics- and with this I seem to have a LOT more trouble. libpng depends on libz, and libtiff depends on both libz and libjpeg. Courses additionally have free preview lessons that may help you decide on making a purchasing decision.I read the LazyFoo tutorial about colorkeying in SDL, which I got working without much trouble. As of SDLimage 1.2.5, JPEG, PNG, and TIFF image loading libraries are dynamically loaded, so if you dont need to load those formats, you dont need to include those shared libraries. I recommend you check out the free content first to see if you may enjoy a full course. Before you run it, though, make sure that SDL2.dll is in the same folder as your executable. I have lots of free video content on YouTube if you are not ready to pay for a course. 1 IMGQuit () All we have left to do now is replace the line calling SDLLoadBMP () with one that uses IMGLoad () instead: 1 SDLSurface image IMGLoad ('PICT3159.JPG') You should now be able to build this program (Ctrl+Shift+B). If you have completed less than 20% of the course (inclusive of the free preview) and are within 21 days of the purchase, then you can request a refund. Yes! Each course comes with a free preview that I recommend you investigate prior to paying the course.Ĭan I get a refund if I change my mind on a course? Consider each course a shortcut that will save you time learning.Ĭan I preview the course before I buy it? The courses I have put together here have been previously vetted by students and industry professionals for each topic, providing high quality lessons to you. You do not have to continually search YouTube or Google and worry if you are learning things in the correct order. So it's great to meet you, and I hope you enjoy any of the courses I develop, and I wish you the best of luck as you begin your journey!Ĭourses that are on this webpage provide you a learning path from start to finish. I also strongly believe in hands on learning in all of my courses. I enjoy teaching systems, graphics, and any other low level topic to students, and will do my best to explain things in a way that is easy to understand for beginners. IMGLoadTextureTypedRW IMGLoadTextureRW SDL. This function is available since SDLimage 2.0.0. When done with the returned texture, the app should dispose of it with a call to SDLDestroyTexture(). Use SDLSetTextureBlendMode (source, SDLBLENDMODENONE) before RenderCopy, otherwise youll get wrong colour (blended with default black - result would be darker than it shound be). I have been teaching at higher educational institutions for almost 10 years as an instructor. If you would rather decode an image to an SDLSurface (a buffer of pixels in CPU memory), call IMGLoad() instead. There are two problems: Disable blending. Since my journey began, I have continued to keep learning as much as I can about how our machines work-usually focusing on low-level software development in C, C++, and focusing on optimizing performance. I then found that I enjoyed teaching others as I learned, and I started my first job writing magazine articles to teach others game programming. My computer science career started with a google search in middle school asking- "How do I make games?" The day of that search I began teaching myself how to program, do 3D art, record music-the whole ordeal to make my own game. Remarks An SDLSurface is a buffer of pixels in memory accessible by the CPU. Syntax SDLSurface IMGLoad (const char file) Function Parameters Return Value Returns a new SDL surface, or NULL on error. But let me take you back to the beginning. Load an image from a filesystem path into a software surface. If you know you definitely have a PNG image, you can call this function, which will skip SDLimages file format detection routines. Additionally, my png file is definitely in the same directory as my code that tries to load it and I do call IMGInit(IMGINITPNG) and IMGINITPNG. I do not use SDL2/SDLimage.h because it is not installed on the machines I am working on. in computer science, teach at a research active university, and consult as a Senior 3D Graphics Engineer delivering real software products. And when I compile I include the -lSDL2 and -lSDLimage flags.
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