Make things C89 friendly

GL/draw.c

@@ -90,23 +90,25 @@ static void _parseColour(uint32* out, const GLubyte* in, GLint size, GLenum type
 }
 
 static void _parseFloats(GLfloat* out, const GLubyte* in, GLint size, GLenum type) {
+    GLubyte i = 0;
+
     switch(type) {
     case GL_SHORT: {
         GLshort* inp = (GLshort*) in;
-        for(GLubyte i = 0; i < size; ++i) {
+        for(i = 0; i < size; ++i) {
             out[i] = (GLfloat) inp[i];
         }
     } break;
     case GL_INT: {
         GLint* inp = (GLint*) in;
-        for(GLubyte i = 0; i < size; ++i) {
+        for(i = 0; i < size; ++i) {
             out[i] = (GLfloat) inp[i];
         }
     } break;
     case GL_FLOAT:
     case GL_DOUBLE:  /* Double == Float */
     default:
-        for(GLubyte i = 0; i < size; ++i) out[i] = ((GLfloat*) in)[i];
+        for(i = 0; i < size; ++i) out[i] = ((GLfloat*) in)[i];
     }
 }
 
@@ -165,7 +167,8 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
 
     GLboolean lighting_enabled = isLightingEnabled();
 
-    for(GLuint i = first; i < count; ++i) {
+    GLushort i;
+    for(i = first; i < count; ++i) {
         pvr_vertex_t* vertex = (pvr_vertex_t*) dst;
         vertex->u = vertex->v = 0.0f;
         vertex->argb = 0;
@@ -202,9 +205,12 @@ static void submitVertices(GLenum mode, GLsizei first, GLsizei count, GLenum typ
             GLfloat contribution [] = {0.0f, 0.0f, 0.0f, 0.0f};
             GLfloat to_add [] = {0.0f, 0.0f, 0.0f, 0.0f};
 
-            for(GLubyte i = 0; i < MAX_LIGHTS; ++i) {
+            /* FIXME!!! Transform the position to eye space */
+
+            GLubyte j;
+            for(j = 0; j < MAX_LIGHTS; ++j) {
                 if(isLightEnabled(i)) {
-                    calculateLightingContribution(i, &vertex->x, normal, to_add);
+                    calculateLightingContribution(j, &vertex->x, normal, to_add);
 
                     contribution[0] += to_add[0];
                     contribution[1] += to_add[1];

GL/lighting.c

@@ -23,7 +23,8 @@ void initLights() {
     MATERIAL.diffuse_color_index = 1.0f;
     MATERIAL.specular_color_index = 1.0f;
 
-    for(GLubyte i = 0; i < MAX_LIGHTS; ++i) {
+    GLubyte i;
+    for(i = 0; i < MAX_LIGHTS; ++i) {
         memcpy(LIGHTS[i].ambient, ZERO, sizeof(GLfloat) * 4);
         memcpy(LIGHTS[i].diffuse, ONE, sizeof(GLfloat) * 4);
         memcpy(LIGHTS[i].specular, ONE, sizeof(GLfloat) * 4);

GL/state.c

@@ -189,7 +189,8 @@ void initContext() {
     glDisable(GL_TEXTURE_2D);
 
     glDisable(GL_LIGHTING);
-    for(GLubyte i = 0; i < MAX_LIGHTS; ++i) {
+    GLubyte i;
+    for(i = 0; i < MAX_LIGHTS; ++i) {
         glDisable(GL_LIGHT0 + i);
     }
 }

GL/texture.c

@@ -549,7 +549,8 @@ void APIENTRY glTexImage2D(GLenum target, GLint level, GLint internalFormat,
         }
 
         /* Perform the conversion */
-        for(GLuint i = 0; i < bytes; i += 2) {
+        GLuint i;
+        for(i = 0; i < bytes; i += 2) {
             convert(source, dest);
 
             dest++;

Makefile

@@ -3,6 +3,7 @@
 # kos-ports/libgl Makefile
 # Copyright (C) 2013, 2014 Josh Pearson
 # Copyright (C) 2014 Lawrence Sebald
+# Copyright (C) 2018 Luke Benstead
 
 TARGET = libGL.a
 OBJS = gl-rgb.o gl-fog.o gl-sh4-light.o gl-light.o gl-clip.o gl-clip-arrays.o

containers/named_array.h

@@ -43,8 +43,9 @@ inline char named_array_used(NamedArray* array, unsigned int id) {
 }
 
 inline void* named_array_alloc(NamedArray* array, unsigned int* new_id) {
-    for(unsigned int i = 0; i < array->marker_count; ++i) {
-        for(unsigned int j = 0; j < 8; ++j) {
+    unsigned int i = 0, j = 0;
+    for(i = 0; i < array->marker_count; ++i) {
+        for(j = 0; j < 8; ++j) {
             unsigned int id = (i * 8) + j + 1;
             if(!named_array_used(array, id)) {
                 array->used_markers[i] |= (unsigned char) 1 << j;