From 847962910f0bff071f3bf07c9abb87764fb6cac3 Mon Sep 17 00:00:00 2001
From: claude-bot <claude@ancap.in.ua>
Date: Mon, 13 Jul 2026 12:40:03 +0000
Subject: Import aap/librw @ master

Snapshot for re3/reVC vendoring, per @lzcnt.
Source: https://github.com/aap/librw (master).
---
 src/gl/rwgl3impl.h | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 src/gl/rwgl3impl.h

(limited to 'src/gl/rwgl3impl.h')

diff --git a/src/gl/rwgl3impl.h b/src/gl/rwgl3impl.h
new file mode 100644
index 0000000..9d3be44
--- /dev/null
+++ b/src/gl/rwgl3impl.h
@@ -0,0 +1,92 @@
+namespace rw {
+namespace gl3 {
+
+#ifdef RW_OPENGL
+
+extern uint32 im2DVbo, im2DIbo;
+void openIm2D(void);
+void closeIm2D(void);
+void im2DRenderLine(void *vertices, int32 numVertices,
+  int32 vert1, int32 vert2);
+void im2DRenderTriangle(void *vertices, int32 numVertices,
+  int32 vert1, int32 vert2, int32 vert3);
+void im2DRenderPrimitive(PrimitiveType primType,
+   void *vertices, int32 numVertices);
+void im2DRenderIndexedPrimitive(PrimitiveType primType,
+   void *vertices, int32 numVertices, void *indices, int32 numIndices);
+
+void openIm3D(void);
+void closeIm3D(void);
+void im3DTransform(void *vertices, int32 numVertices, Matrix *world, uint32 flags);
+void im3DRenderPrimitive(PrimitiveType primType);
+void im3DRenderIndexedPrimitive(PrimitiveType primType, void *indices, int32 numIndices);
+void im3DEnd(void);
+
+struct DisplayMode
+{
+#ifdef LIBRW_SDL2
+	SDL_DisplayMode mode;
+#elif defined(LIBRW_SDL3)
+	SDL_DisplayMode mode;
+#elif defined(LIBRW_GLFW)
+	GLFWvidmode mode;
+#else
+	not implemented
+#endif
+	int32 depth;
+	uint32 flags;
+};
+
+struct GlGlobals
+{
+#ifdef LIBRW_SDL2
+	SDL_Window **pWindow;
+	SDL_Window *window;
+	SDL_GLContext glcontext;
+
+	int numDisplays;
+	int currentDisplay;
+#elif defined(LIBRW_SDL3)
+	SDL_Window **pWindow;
+	SDL_Window *window;
+	SDL_GLContext glcontext;
+
+	int numDisplays;
+	int currentDisplay;
+#elif defined(LIBRW_GLFW)
+	GLFWwindow **pWindow;
+	GLFWwindow *window;
+
+	GLFWmonitor *monitor;
+	int numMonitors;
+	int currentMonitor;
+#else
+	not implemented
+#endif
+
+	DisplayMode *modes;
+	int numModes;
+	int currentMode;
+	int presentWidth, presentHeight;
+	int presentOffX, presentOffY;
+
+	// for opening the window
+	int winWidth, winHeight;
+	const char *winTitle;
+	uint32 numSamples;
+};
+
+extern GlGlobals glGlobals;
+#endif
+
+Raster *rasterCreate(Raster *raster);
+uint8 *rasterLock(Raster*, int32 level, int32 lockMode);
+void rasterUnlock(Raster*, int32);
+int32 rasterNumLevels(Raster*);
+bool32 imageFindRasterFormat(Image *img, int32 type,
+	int32 *width, int32 *height, int32 *depth, int32 *format);
+bool32 rasterFromImage(Raster *raster, Image *image);
+Image *rasterToImage(Raster *raster);
+
+}
+}
-- 
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