From 13ed39d65ed2637973c64303e8b90c3eac1b550e Mon Sep 17 00:00:00 2001 From: Pierre-Antoine Rouby Date: Mon, 20 May 2019 18:03:18 +0200 Subject: render: Add SDL_RenderCopyEx binding. * sdl2/bindings.scm (sdl-point): New variable. (sdl-render-copy-ex): New procedure. * sdl2/render.scm (render-copy): Add optional arguments, angle and center. * doc/api.texi (Rendering): Document it. --- sdl2/render.scm | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) (limited to 'sdl2/render.scm') diff --git a/sdl2/render.scm b/sdl2/render.scm index e2fb05c..c91699d 100644 --- a/sdl2/render.scm +++ b/sdl2/render.scm @@ -127,15 +127,23 @@ color." (sdl-error "surface->texture" "failed to convert surface to texture") (wrap-texture ptr)))) -(define* (render-copy renderer texture #:key srcrect dstrect) + +(define* (render-copy renderer texture + #:key (angle 0) srcrect dstrect center) "Copy TEXTURE to the rendering target of RENDERER." - (let ((result (ffi:sdl-render-copy (unwrap-renderer renderer) - (unwrap-texture texture) - (if srcrect - (make-c-struct ffi:sdl-rect srcrect) - %null-pointer) - (if dstrect - (make-c-struct ffi:sdl-rect dstrect) - %null-pointer)))) + (let ((result (ffi:sdl-render-copy-ex + (unwrap-renderer renderer) + (unwrap-texture texture) + (if srcrect + (make-c-struct ffi:sdl-rect srcrect) + %null-pointer) + (if dstrect + (make-c-struct ffi:sdl-rect dstrect) + %null-pointer) + angle + (if center + (make-c-struct ffi:sdl-point center) + %null-pointer) + 0))) (unless (zero? result) (sdl-error "render-copy" "failed to copy texture")))) -- cgit v1.2.3