X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fgaw%2Fgaw_gl.c;h=1868d26d6d3976d093d80cead326e6a2e59515a2;hb=208078d05078a27b5cdfc213031d91e88180994b;hp=7a58c1db9d90b263fe17bb8f84412f45fc6b9dd9;hpb=176092843ec9bc851c73c842facf92ad48ab03cb;p=retroray

diff --git a/src/gaw/gaw_gl.c b/src/gaw/gaw_gl.c
index 7a58c1d..1868d26 100644
--- a/src/gaw/gaw_gl.c
+++ b/src/gaw/gaw_gl.c
@@ -1,5 +1,5 @@
 /*
-Deep Runner - 6dof shooter game for the SGI O2.
+RetroRay - integrated standalone vintage modeller/renderer
 Copyright (C) 2023  John Tsiombikas <nuclear@mutantstargoat.com>
 
 This program is free software: you can redistribute it and/or modify
@@ -44,6 +44,11 @@ void gaw_viewport(int x, int y, int w, int h)
 	glViewport(x, y, w, h);
 }
 
+void gaw_get_viewport(int *vp)
+{
+	glGetIntegerv(GL_VIEWPORT, vp);
+}
+
 void gaw_matrix_mode(int mode)
 {
 	mode += GL_MODELVIEW;
@@ -167,6 +172,9 @@ void gaw_enable(int st)
 	case GAW_TEXTURE_2D:
 		glEnable(GL_TEXTURE_2D);
 		break;
+	case GAW_POLYGON_OFFSET:
+		glEnable(GL_POLYGON_OFFSET_FILL);
+		break;
 	default:
 		break;
 	}
@@ -214,6 +222,9 @@ void gaw_disable(int st)
 	case GAW_TEXTURE_2D:
 		glDisable(GL_TEXTURE_2D);
 		break;
+	case GAW_POLYGON_OFFSET:
+		glDisable(GL_POLYGON_OFFSET_FILL);
+		break;
 	default:
 		break;
 	}
@@ -235,6 +246,11 @@ void gaw_alpha_func(int func, float ref)
 	glAlphaFunc(func + GL_NEVER, ref);
 }
 
+void gaw_zoffset(float offs)
+{
+	glPolygonOffset(1, offs);
+}
+
 void gaw_clear_color(float r, float g, float b, float a)
 {
 	glClearColor(r, g, b, a);
@@ -389,6 +405,11 @@ void gaw_vertex3f(float x, float y, float z)
 	glVertex3f(x, y, z);
 }
 
+void gaw_vertex4f(float x, float y, float z, float w)
+{
+	glVertex4f(x, y, z, w);
+}
+
 void gaw_rect(float x1, float y1, float x2, float y2)
 {
 	glRectf(x1, y1, x2, y2);