From f839d6117f42d196ee2b3bb02f52c5b8a7614738 Mon Sep 17 00:00:00 2001
From: UnknownShadow200 <unknownshadow200@gmail.com>
Date: Sat, 30 Sep 2023 11:00:18 +1000
Subject: [PATCH] oops

---
 src/Graphics_Dreamcast.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/src/Graphics_Dreamcast.c b/src/Graphics_Dreamcast.c
index c6b9a3c..53b3f2b 100644
--- a/src/Graphics_Dreamcast.c
+++ b/src/Graphics_Dreamcast.c
@@ -4,8 +4,7 @@
 #include "Errors.h"
 #include "Logger.h"
 #include "Window.h"
-#include "GL/gl.h"
-#include "GL/glkos.h"
+#include "../third_party/gldc/include/gldc.h"
 #include <malloc.h>
 #include <kos.h>
 #include <dc/matrix.h>
@@ -20,9 +19,10 @@ static cc_bool renderingDisabled;
 *---------------------------------------------------------General---------------------------------------------------------*
 *#########################################################################################################################*/
 void Gfx_Create(void) {
-	glKosInit();
-	glGetIntegerv(GL_MAX_TEXTURE_SIZE, &Gfx.MaxTexWidth);
-	Gfx.MaxTexHeight = Gfx.MaxTexWidth;
+	if (!Gfx.Created) glKosInit();
+	// NOTE: technically 1024 is supported by hardware
+	Gfx.MaxTexWidth  = 512;
+	Gfx.MaxTexHeight = 512;
 	Gfx.Created      = true;
 	Gfx_RestoreState();
 }
@@ -243,9 +243,10 @@ static unsigned Interleave(unsigned x) {
 }
 
 /*static int CalcTwiddledIndex(int x, int y, int w, int h) {
-	// Twiddled index looks like this (starting from lowest numbered bits):
-	//   e.g. w > h: yx_yx_xx_xx
-	//   e.g. h > w: yx_yx_yy_yy
+	// Twiddled index looks like this (lowest numbered bits are leftmost):
+	//   - w = h: yxyx yxyx
+	//   - w > h: yxyx xxxx
+	//   - h > w: yxyx yyyy
 	// And can therefore be broken down into two components:
 	//  1) interleaved lower bits
 	//  2) masked and then shifted higher bits
@@ -485,8 +486,6 @@ static CC_NOINLINE void UnshiftTextureCoords(int count) {
 static void Gfx_FreeState(void) { FreeDefaultResources(); }
 static void Gfx_RestoreState(void) {
 	InitDefaultResources();
-	glEnableClientState(GL_VERTEX_ARRAY);
-	glEnableClientState(GL_COLOR_ARRAY);
 	gfx_format = -1;
 
 	glAlphaFunc(GL_GREATER, 0.5f);
@@ -520,10 +519,8 @@ void Gfx_SetVertexFormat(VertexFormat fmt) {
 	gfx_stride = strideSizes[fmt];
 
 	if (fmt == VERTEX_FORMAT_TEXTURED) {
-		glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 		glEnable(GL_TEXTURE_2D);
 	} else {
-		glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 		glDisable(GL_TEXTURE_2D);
 	}
 }