revitalise

2 files changed, 372 insertions, 487 deletions

diff --git a/rsgl.c3l/include/RSGL.h b/rsgl.c3l/include/RSGL.h
index 3c28e44..9ea15dd 100644
--- a/rsgl.c3l/include/RSGL.h
+++ b/rsgl.c3l/include/RSGL.h
@@ -1,6 +1,6 @@
 /*
 *
-* Copyright (c) 2021-25 ColleagueRiley ColleagueRiley@gmail.com
+* Copyright (c) 2021-26 ColleagueRiley ColleagueRiley@gmail.com
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
@@ -31,12 +31,6 @@
     #define RSGL_MAX_VERTS [number of verts] - set max number of verts to be allocated (global, not per batch)
 */
 #include <stdint.h>
-#ifndef RSGL_MAX_BATCHES
-#define RSGL_MAX_BATCHES 2028
-#endif
-#ifndef RSGL_MAX_VERTS
-#define RSGL_MAX_VERTS 8192
-#endif
 
 #ifndef RSGL_MALLOC
 #include <stdlib.h>
@@ -45,6 +39,15 @@
 #define RSGL_FREE free
 #endif
 
+#ifndef RSGL_ASSERT
+	#include <assert.h>
+	#define RSGL_ASSERT(x) assert(x)
+#endif
+
+#ifndef RSGL__STATIC_ASSERT
+	#define RSGL_STATIC_ASSERT(check_name, x) typedef char RSGL_check_##check_name[(x) ? 1 : -1];
+#endif
+
 #ifndef RSGL_SIN
 #include <math.h>
 #define RSGL_SIN sinf
@@ -61,6 +64,13 @@
 	#define RSGL_MEMSET(ptr, value, num) memset(ptr, value, num)
 #endif
 
+#ifdef RSGL_DEBUG
+	#ifndef RSGL_PRINTF
+		#include <stdio.h>
+		#define RSGL_PRINTF printf
+	#endif /* RSGL_PRINTF */
+#endif /* RSGL_DEBUG */
+
 #ifndef RSGL_H
 #define RSGL_H
 #ifndef RSGLDEF
@@ -71,18 +81,30 @@
 #endif
 #endif
 
+#include <stddef.h>
+
 #ifndef RSGL_INT_DEFINED
-    #define RSGL_INT_DEFINED
-	#if defined(_MSC_VER) || defined(__SYMBIAN32__)
-		typedef unsigned char 	u8;
-		typedef signed char		i8;
-		typedef unsigned short  u16;
-		typedef signed short 	i16;
-		typedef unsigned int 	u32;
-		typedef signed int		i32;
-		typedef unsigned long long	u64;
-		typedef signed   long long	i64;
-	#else
+	#ifdef RSGL_USE_INT /* optional for any system that might not have stdint.h */
+		#include <limits.h>
+		typedef unsigned char       u8;
+		typedef signed char         i8;
+		typedef unsigned short     u16;
+		typedef signed short 	   i16;
+		#if INT_MAX == 0x7FFFFFFF
+			typedef unsigned int  u32;
+			typedef signed int    i32;
+		#else
+			typedef unsigned long int  u32;
+			typedef signed long int    i32;
+		#endif
+		#if LONG_MAX == 0x7FFFFFFFFFFFFFFFL
+	typedef unsigned long u64;
+			typedef signed long   i64;
+		#else
+			typedef unsigned long long u64;
+			typedef signed long long   i64;
+		#endif
+	#else /* use stdint standard types instead of c "standard" types */
 		#include <stdint.h>
 
 		typedef uint8_t     u8;
@@ -94,19 +116,71 @@
 		typedef uint64_t   u64;
 		typedef int64_t    i64;
 	#endif
+	#define RSGL_INT_DEFINED
 #endif
 
+RSGL_STATIC_ASSERT(size64, sizeof(i64) == 8)
+RSGL_STATIC_ASSERT(size32, sizeof(i32) == 4)
+RSGL_STATIC_ASSERT(size16, sizeof(i16) == 2)
+
 #ifndef RSGL_BOOL_DEFINED
-#define RSGL_BOOL_DEFINED
+	#define RSGL_BOOL_DEFINED
 
-#include <stdbool.h>
-typedef bool RSGL_bool;
+	#include <stdbool.h>
+	typedef bool RSGL_bool;
 #endif
 
 #define RSGL_TRUE (RSGL_bool)1
 #define RSGL_FALSE (RSGL_bool)0
 
-typedef enum RSGL_textureFormat {
+#ifndef RSGL_MAX_BATCHES
+	#define RSGL_MAX_BATCHES 2028
+#endif
+
+	#ifndef RSGL_MAX_VERTS
+#define RSGL_MAX_VERTS 8192
+#endif
+
+#define RSGL_ENUM(type, name) type name; enum name##_enum
+
+/* 
+******
+RSGL_debug
+*****
+*/
+
+/*! @brief the type of debug message */
+typedef RSGL_ENUM(u8, RSGL_debugType) {
+	RSGL_typeError = 0, RSGL_typeWarning, RSGL_typeInfo
+};
+
+/*! @brief error codes for known failure types */
+typedef RSGL_ENUM(u8, RSGL_errorCode) {
+	RSGL_noError = 0, /*!< no error */
+	RSGL_errorBackend, 
+	RSGL_errorQueryFail,
+	RSGL_errorShader,
+	RSGL_infoBackend,
+	RSGL_infoShader,
+	RSGL_warningBackend
+};
+
+/*! @brief data for debug messages */
+typedef struct RSGL_debugInfo {
+	RSGL_debugType type; /*!< the type of message */
+	RSGL_errorCode code; /*!< the code for the specific type of debug message */
+	const char* msg; /*!< string message */
+} RSGL_debugInfo;
+
+typedef void (* RSGL_debugFunc)(const RSGL_debugInfo* info);
+
+/* 
+******
+RSGL_renderer types
+*****
+*/
+
+typedef RSGL_ENUM(i32, RSGL_textureFormat) {
 	RSGL_formatNone = 0,
 	RSGL_formatRGB,    /*!< 8-bit RGB (3 channels) */
     RSGL_formatBGR,    /*!< 8-bit BGR (3 channels) */
@@ -116,17 +190,17 @@ typedef enum RSGL_textureFormat {
     RSGL_formatGrayscale,   /*!< 8-bit grayscale (1 channel) */
     RSGL_formatGrayscaleAlpha,   /*!< 8-bit grayscale alpha (1 channel) */
 	RSGL_formatCount
-} RSGL_textureFormat;
+};
 
-typedef enum RSGL_textureDataType {
+typedef RSGL_ENUM(i32, RSGL_textureDataType) {
 	RSGL_textureDataInt = 0,
 	RSGL_textureDataFloat
-} RSGL_textureDataType;
+};
 
-typedef enum RSGL_textureFilter {
+typedef RSGL_ENUM(i32, RSGL_textureFilter) {
 	RSGL_filterNearest = 0,
 	RSGL_filterLinear
-} RSGL_textureFilter;
+};
 
 typedef struct RSGL_textureBlob {
 	void* data; /* input data */
@@ -197,41 +271,23 @@ typedef struct RSGL_color {
 #define RSGL_RGB_TO_HEX(r, g, b, a) (RSGL_COLOR_TO_HEX(RSGL_RGBA(r, g, b, a)))
 #define RSGL_RGBA_TO_HEX(r, g, b) (RSGL_COLOR_TO_HEX(RSGL_RGB(r, g, b, a)))
 
-/*
-*********************
-RSGL matrix math
-*********************
-*/
-
 #ifndef RSGL_mat4
 typedef struct RSGL_mat4 {
     float m[16];
 } RSGL_mat4;
 #endif
 
-RSGLDEF RSGL_mat4 RSGL_mat4_loadIdentity(void);
-RSGLDEF RSGL_mat4 RSGL_mat4_scale(float matrix[16], float x, float y, float z);
-RSGLDEF RSGL_mat4 RSGL_mat4_rotate(float matrix[16], float angle, float x, float y, float z);
-RSGLDEF RSGL_mat4 RSGL_mat4_translate(float matrix[16], float x, float y, float z);
-RSGLDEF RSGL_mat4 RSGL_mat4_perspective(float matrix[16], float fovY, float aspect, float zNear, float zFar);
-RSGLDEF RSGL_mat4 RSGL_mat4_ortho(float matrix[16], float left, float right, float bottom, float top, float znear, float zfar);
-RSGLDEF RSGL_mat4 RSGL_mat4_lookAt(float matrix[16], float eyeX, float eyeY, float eyeZ, float targetX, float targetY, float targetZ, float upX, float upY, float upZ);
-
-RSGLDEF RSGL_mat4 RSGL_mat4_multiply(float left[16], float right[16]);
-
-RSGLDEF RSGL_vec3D RSGL_mat4_multiplyPoint(RSGL_mat4 matrix, RSGL_vec3D point);
-
 /*
 *******
 RSGL_perspective
 *******
 */
 
-typedef enum RSGL_projectionType {
+typedef RSGL_ENUM(i32, RSGL_projectionType) {
 	RSGL_projectionOrtho2D = 0,
 	RSGL_projectionOrtho3D,
 	RSGL_projectionPerspective3D,
-} RSGL_projectionType;
+};
 
 typedef struct RSGL_projection2D {
 	RSGL_projectionType type;
@@ -253,7 +309,26 @@ typedef union RSGL_projection {
 	RSGL_projection3D p3D;
 } RSGL_projection;
 
-RSGLDEF RSGL_mat4 RSGL_projection_getMatrix(const RSGL_projection* projection);
+/*
+*******
+RSGL_draw low level
+*******
+*/
+
+typedef RSGL_ENUM(i32, RSGL_drawType) {
+	RSGL_TRIANGLES = 0,
+	RSGL_POINTS = 1,
+	RSGL_LINES = 2
+};
+
+typedef struct RSGL_rawVerts {
+	RSGL_drawType type;
+	float* verts;
+	float* texCoords;
+	u16* elements;
+	size_t elmCount;
+	size_t vert_count;
+} RSGL_rawVerts;
 
 /*
 *********************
@@ -262,12 +337,12 @@ RSGL renderer
 */
 
 /* used internally for RSGL_deleteProgram */
-typedef enum RSGL_shaderType {
+typedef RSGL_ENUM(i32, RSGL_shaderType) {
 	RSGL_shaderTypeNone = 0,
 	RSGL_shaderTypeStandard = 1, /* standard vertex+fragment shader */
 	RSGL_shaderTypeCompute = 2,
 	RSGL_shaderTypeGeometry = 4, /* unimplemented as of now */
-} RSGL_shaderType;
+};
 
 /* shader program and blob */
 typedef struct RSGL_programBlob {
@@ -291,7 +366,7 @@ typedef struct RSGL_programInfo {
 typedef struct RSGL_BATCH {
     size_t start, len; /* when batch starts and it's length */
     size_t elmStart, elmCount; /* when element batch starts and it's length */
-    u32 type;
+	RSGL_drawType type;
     RSGL_texture tex;
     float lineWidth;
     RSGL_mat4 matrix;
@@ -308,13 +383,13 @@ typedef struct RSGL_renderData {
 	RSGL_mat4 perspective; /* perspective matrix */
 } RSGL_renderData;
 
-typedef enum RSGL_bufferType {
+typedef RSGL_ENUM(i32, RSGL_bufferType) {
 	RSGL_arrayBuffer = 0,
 	RSGL_elementArrayBuffer,
 	RSGL_shaderStorageBuffer,
 	RSGL_textureBuffer,
 	RSGL_uniformBuffer
-} RSGL_bufferType;
+};
 
 typedef struct RSGL_renderBuffers {
 	size_t vertex, color, texture, elements;
@@ -401,6 +476,81 @@ typedef struct RSGL_renderer {
 	RSGL_renderBuffers buffers;
 } RSGL_renderer;
 
+/*
+*******
+RSGL_view
+*******
+*/
+
+typedef RSGL_ENUM(i32, RSGL_viewType) {
+	RSGL_viewTypeNone = 0,
+	RSGL_viewType2D,
+	RSGL_viewType3D,
+};
+
+typedef struct RSGL_view2D {
+	RSGL_viewType type;
+	RSGL_vec3D offset;
+	RSGL_vec3D target;
+    float rotation;
+    float zoom;
+} RSGL_view2D;
+
+/* RSGL translation */
+typedef struct RSGL_view3D {
+	RSGL_viewType type;
+	RSGL_vec3D pos;
+	RSGL_vec3D target;
+    RSGL_vec3D up;
+} RSGL_view3D;
+
+typedef union RSGL_view {
+	RSGL_viewType type;
+	RSGL_view2D view2D;
+	RSGL_view3D view3D;
+} RSGL_view;
+
+/* 
+******
+RSGL_debug
+*****
+*/
+
+RSGLDEF RSGL_debugFunc RSGL_setDebugCallback(RSGL_debugFunc func);
+RSGLDEF void RSGL_debugCallback(RSGL_debugType type, RSGL_errorCode code, const char* msg);
+
+/*
+*********************
+RSGL matrix math
+*********************
+*/
+
+RSGLDEF RSGL_mat4 RSGL_mat4_loadIdentity(void);
+RSGLDEF RSGL_mat4 RSGL_mat4_scale(float matrix[16], float x, float y, float z);
+RSGLDEF RSGL_mat4 RSGL_mat4_rotate(float matrix[16], float angle, float x, float y, float z);
+RSGLDEF RSGL_mat4 RSGL_mat4_translate(float matrix[16], float x, float y, float z);
+RSGLDEF RSGL_mat4 RSGL_mat4_perspective(float matrix[16], float fovY, float aspect, float zNear, float zFar);
+RSGLDEF RSGL_mat4 RSGL_mat4_ortho(float matrix[16], float left, float right, float bottom, float top, float znear, float zfar);
+RSGLDEF RSGL_mat4 RSGL_mat4_lookAt(float matrix[16], float eyeX, float eyeY, float eyeZ, float targetX, float targetY, float targetZ, float upX, float upY, float upZ);
+
+RSGLDEF RSGL_mat4 RSGL_mat4_multiply(float left[16], float right[16]);
+
+RSGLDEF RSGL_vec3D RSGL_mat4_multiplyPoint(RSGL_mat4 matrix, RSGL_vec3D point);
+
+/*
+*******
+RSGL_perspective
+*******
+*/
+
+RSGLDEF RSGL_mat4 RSGL_projection_getMatrix(const RSGL_projection* projection);
+
+/*
+*********************
+RSGL renderer
+*********************
+*/
+
 RSGLDEF void RSGL_renderer_getRenderState(RSGL_renderer* renderer, RSGL_renderState* state);
 
 RSGLDEF size_t RSGL_renderer_size(RSGL_renderer* renderer);
@@ -490,21 +640,6 @@ RSGL_drawRawVerts is a function used internally by RSGL, but you can use it your
 RSGL_drawRawVerts batches a given set of points based on th data to be rendered
 */
 
-typedef enum RSGL_drawType {
-	RSGL_TRIANGLES = 0,
-	RSGL_POINTS = 1,
-	RSGL_LINES = 2
-} RSGL_drawType;
-
-typedef struct RSGL_rawVerts {
-	RSGL_drawType type;
-	float* verts;
-	float* texCoords;
-	u16* elements;
-	size_t elmCount;
-	size_t vert_count;
-} RSGL_rawVerts;
-
 RSGLDEF i32 RSGL_drawRawVerts(RSGL_renderer* renderer, const RSGL_rawVerts* data);
 
 /*
@@ -567,16 +702,12 @@ RSGLDEF i32 RSGL_drawCube(RSGL_renderer* renderer, RSGL_cube cube);
 RSGLDEF i32 RSGL_drawTriangleOutline(RSGL_renderer* renderer, RSGL_vec3D triangle[3], u32 thickness);
 
 RSGLDEF i32 RSGL_drawRectOutline(RSGL_renderer* renderer, RSGL_rect r, u32 thickness);
-RSGLDEF i32 RSGL_drawRectOutline(RSGL_renderer* renderer, RSGL_rect r, u32 thickness);
 
 RSGLDEF i32 RSGL_drawRoundRectOutline(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding, u32 thickness);
-RSGLDEF i32 RSGL_drawRoundRectOutline(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding, u32 thickness);
 
 RSGLDEF i32 RSGL_drawPolygonOutline(RSGL_renderer* renderer, RSGL_rect r, u32 sides, u32 thickness);
-RSGLDEF i32 RSGL_drawPolygonOutline(RSGL_renderer* renderer, RSGL_rect r, u32 sides, u32 thickness);
 
 RSGLDEF i32 RSGL_drawArcOutline(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc, u32 thickness);
-RSGLDEF i32 RSGL_drawArcOutline(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc, u32 thickness);
 
 RSGLDEF i32 RSGL_drawOvalOutline(RSGL_renderer* renderer, RSGL_rect o, u32 thickness);
 
@@ -586,34 +717,6 @@ RSGL_view
 *******
 */
 
-typedef enum RSGL_viewType {
-	RSGL_viewTypeNone = 0,
-	RSGL_viewType2D,
-	RSGL_viewType3D,
-} RSGL_viewType;
-
-typedef struct RSGL_view2D {
-	RSGL_viewType type;
-	RSGL_vec3D offset;
-	RSGL_vec3D target;
-    float rotation;
-    float zoom;
-} RSGL_view2D;
-
-/* RSGL translation */
-typedef struct RSGL_view3D {
-	RSGL_viewType type;
-	RSGL_vec3D pos;
-	RSGL_vec3D target;
-    RSGL_vec3D up;
-} RSGL_view3D;
-
-typedef union RSGL_view {
-	RSGL_viewType type;
-	RSGL_view2D view2D;
-	RSGL_view3D view3D;
-} RSGL_view;
-
 RSGLDEF RSGL_mat4 RSGL_view_getMatrix(const RSGL_view* view);
 
 #endif /* ndef RSGL_HIGHLEVEL_H && ndef RSGL_NO_HIGHLEVEL */
@@ -646,6 +749,33 @@ RSGLDEF RSGL_mat4 RSGL_view_getMatrix(const RSGL_view* view);
             RSGL_GET_MATRIX_Z(x, y, z), \
             RSGL_GET_MATRIX_W(x, y, z) \
 
+RSGL_debugFunc RSGL_debugCallbackSrc = NULL;
+RSGL_debugFunc RSGL_setDebugCallback(RSGL_debugFunc func) {
+	RSGL_debugFunc prev = func;
+	RSGL_debugCallbackSrc = func;
+	return prev;
+}
+
+void RSGL_debugCallback(RSGL_debugType type, RSGL_errorCode code, const char* msg) {
+	RSGL_debugInfo info;
+	info.type = type;
+	info.code = code;
+	info.msg = msg;
+
+	if (RSGL_debugCallbackSrc) RSGL_debugCallbackSrc(&info);
+
+    #ifdef RSGL_DEBUG
+	switch (type) {
+		case RSGL_typeInfo: RSGL_PRINTF("RSGL INFO (%i %i): %s", type, code, msg); break;
+		case RSGL_typeError: RSGL_PRINTF("RSGL DEBUG (%i %i): %s", type, code, msg); break;
+		case RSGL_typeWarning: RSGL_PRINTF("RSGL WARNING (%i %i): %s", type, code, msg); break;
+		default: break;
+	}
+
+	RSGL_PRINTF("\n");
+	#endif
+}
+
 void RSGL_renderer_forceBatch(RSGL_renderer* renderer) {
     renderer->state.forceBatch = RSGL_TRUE;
 }
@@ -844,8 +974,9 @@ void RSGL_renderer_initPtr(RSGL_rendererProc proc, void* loader, void* data, RSG
 	renderer->data.len = 0;
 	renderer->data.elements_count = 0;
 
-	if (renderer->proc.initPtr)
+	if (renderer->proc.initPtr) {
 		renderer->proc.initPtr(renderer->ctx, loader);
+	}
 
 	RSGL_renderer_setFramebuffer(renderer, 0);
 
@@ -911,7 +1042,7 @@ RSGL_texture RSGL_renderer_createTexture(RSGL_renderer* renderer, const RSGL_tex
 	return tex;
 }
 void RSGL_renderer_copyToTexture(RSGL_renderer* renderer, RSGL_texture texture, size_t x, size_t y, const RSGL_textureBlob* blob) {
-    return renderer->proc.copyToTexture(renderer->ctx, texture, x, y, blob);
+    renderer->proc.copyToTexture(renderer->ctx, texture, x, y, blob);
 }
 void RSGL_renderer_deleteTexture(RSGL_renderer* renderer, RSGL_texture tex) { renderer->proc.deleteTexture(renderer->ctx, tex); }
 void RSGL_renderer_scissorStart(RSGL_renderer* renderer, RSGL_rect scissor, i32 height) {
@@ -953,9 +1084,8 @@ RSGL_programInfo RSGL_renderer_createProgram(RSGL_renderer* renderer, RSGL_progr
 	RSGL_programInfo info;
 	RSGL_MEMSET(&info, 0, sizeof(info));
 
-	if (blob->fragment == NULL || blob->vertex == NULL) {
+	if (renderer->proc.createProgram != NULL && (blob->fragment == NULL || blob->vertex == NULL)) {
 		RSGL_programBlob pBlob = RSGL_renderer_defaultBlob(renderer);
-		renderer->defaultProgram = RSGL_renderer_createProgram(renderer, &pBlob);
 
 		if (blob->vertex == NULL) {
 			blob->vertex = pBlob.vertex;
@@ -974,7 +1104,9 @@ RSGL_programInfo RSGL_renderer_createProgram(RSGL_renderer* renderer, RSGL_progr
 
 	return info;
 }
-void RSGL_renderer_deleteProgram(RSGL_renderer* renderer, const RSGL_programInfo* program) { return renderer->proc.deleteProgram(renderer->ctx, program); }
+void RSGL_renderer_deleteProgram(RSGL_renderer* renderer, const RSGL_programInfo* program) { 
+	renderer->proc.deleteProgram(renderer->ctx, program); 
+}
 
 size_t RSGL_renderer_findShaderVariable(RSGL_renderer* renderer, const RSGL_programInfo* program, const char* var, size_t len) {
     return renderer->proc.findShaderVariable(renderer->ctx, program, var, len);
@@ -1129,7 +1261,7 @@ RFont_texture RFont_RSGL_createAtlas(RSGL_renderer* renderer, u32 atlasWidth, u3
 	RSGL_textureBlob blob;
 	blob.data = NULL;
 	blob.width = atlasWidth;
-	blob.height = atlasWidth;
+	blob.height = atlasHeight;
 	blob.dataType = RSGL_textureDataInt;
 	blob.dataFormat = RSGL_formatRGBA; //RSGL_formatRGBA;
 	blob.textureFormat = RSGL_formatRGBA;//RSGL_formatRGBA;
diff --git a/rsgl.c3l/include/RSGL_gl.h b/rsgl.c3l/include/RSGL_gl.h
index a28242a..dc6df65 100644
--- a/rsgl.c3l/include/RSGL_gl.h
+++ b/rsgl.c3l/include/RSGL_gl.h
@@ -2,37 +2,64 @@
 #include "RSGL.h"

 #endif

 

-// WebGL doesn't support compute shaders iirc so yeah

-#if defined(__EMSCRIPTEN__) && defined(RSGL_USE_COMPUTE)

-#undef RSGL_USE_COMPUTE

-#endif

+#ifndef RSGL_GL_H

+#define RSGL_GL_H

 

-#if defined(__EMSCRIPTEN__)

-	#define RSGL_GLES2

-#endif

+typedef struct RSGL_glRenderer RSGL_glRenderer;

+

+RSGLDEF RSGL_rendererProc RSGL_GL_rendererProc(void);

+RSGLDEF size_t RSGL_GL_size(void);

 

-#if defined(RSGL_GLES3) || defined(RSGL_GLES2)

-	#ifndef RSGL_NO_GL_LOADER

-		#define RSGL_NO_GL_LOADER

+RSGLDEF RSGL_renderer* RSGL_GL_renderer_init(void* loader);

+RSGLDEF void RSGL_GL_renderer_initPtr(void* loader, RSGL_glRenderer* ptr, RSGL_renderer* renderer);

+

+#endif /* RSGL_GL_H */

+

+#ifdef RSGL_IMPLEMENTATION

+

+#ifdef __EMSCRIPTEN__

+	#if defined(RSGL_GL2)

+		#undef RSGL_GL2

+		#define RSGL_GLES2

+	#endif

+	#if defined(RSGL_GL3)

+		#undef RSGL_GL3

+		#define RSGL_GLES3

 	#endif

 #endif

 

 #if !defined(RSGL_GLES3) && !defined(RSGL_GLES2) && !defined(RSGL_GL2) && !defined(RSGL_GL3)

-	#define RSGL_GL3

+	#ifndef __EMSCRIPTEN__

+		#define RSGL_GL3

+	#else

+		#define RSGL_GLES3

+	#endif

 #endif

 

-#ifndef RSGL_GL_H

-#define RSGL_GL_H

+#if (defined(__EMSCRIPTEN__) || defined(RSGL_GLES3) || defined(RSGL_GLES2)) && defined(RSGL_GL_USE_GLAD) 

+	#undef RSGL_GL_USE_GLAD

+#endif

 

-typedef struct RSGL_glRenderer {

-	u32 vao;

-} RSGL_glRenderer;

+#if defined(RSGL_GLES3)

+	#include <GLES3/gl3.h>

+#elif defined(RSGL_GLES2)

+	#include <GLES2/gl2.h>

+#endif

 

-RSGLDEF RSGL_rendererProc RSGL_GL_rendererProc(void);

-RSGLDEF size_t RSGL_GL_size(void);

+#ifdef RSGL_GL_USE_GLAD

+	#if !defined(GLAD_GL_H_) || !defined(GLAD_GL_IMPLEMENTATION) 

+		#define GLAD_MALLOC RSGL_MALLOC 

+		#define GLAD_FREE RSGL_FREE

+		#define GLAD_GL_IMPLEMENTATION

+		#include "glad.h"

+	#endif

+#endif

+

+#ifndef RSGL_SNPRINTF

+	#include <stdio.h>

+	#define RSGL_SNPRINTF snprintf 

+#endif /* RSGL_SNPRINTF */

 

-RSGLDEF RSGL_renderer* RSGL_GL_renderer_init(void* loader);

-RSGLDEF void RSGL_GL_renderer_initPtr(void* loader, RSGL_glRenderer* ptr, RSGL_renderer* renderer);

 RSGLDEF void RSGL_GL_render(RSGL_glRenderer* ctx, const RSGL_renderPass* pass);

 RSGLDEF void RSGL_GL_initPtr(RSGL_glRenderer* ctx, void* proc); /* init render backend */

 RSGLDEF void RSGL_GL_freePtr(RSGL_glRenderer* ctx); /* free render backend */

@@ -67,199 +94,21 @@ RSGLDEF RSGL_programInfo RSGL_GL_createComputeProgram(RSGL_glRenderer* ctx, cons
 RSGLDEF void RSGL_GL_dispatchComputeProgram(RSGL_glRenderer* ctx, RSGL_programInfo program, u32 groups_x, u32 groups_y, u32 groups_z);

 RSGLDEF void RSGL_GL_bindComputeTexture(RSGL_glRenderer* ctx, u32 texture, u8 format);

 #endif

-#endif

-

-#ifdef RSGL_IMPLEMENTATION

-

-RSGL_renderer* RSGL_GL_renderer_init(void* loader) { return RSGL_renderer_init(RSGL_GL_rendererProc(), loader); }

-void RSGL_GL_renderer_initPtr(void* loader, RSGL_glRenderer* ptr, RSGL_renderer* renderer) { return RSGL_renderer_initPtr(RSGL_GL_rendererProc(), loader, ptr, renderer); }

-

-

-/* prevent winapi conflicts (opengl includes windows.h for some reason) */

-#define OEMRESOURCE

-

-#define GL_GLEXT_PROTOTYPES

-

-#ifndef __APPLE__

-#include <GL/gl.h>

-#else

-#include <OpenGL/gl.h>

-#include <OpenGL/glext.h>

-#endif

-

-#if defined(RSGL_GLES3)

-	#include <GLES3/gl3.h>

-#elif defined(RSGL_GLES2)

-	#include <GLES2/gl2.h>

-#endif

-

-#if defined(_WIN32)

-typedef char GLchar;

-typedef int	 GLsizei;

-#include <GL/glext.h>

-#endif

-

-#ifndef RSGL_NO_GL_LOADER

-

-typedef void (*RSGL_gl_proc)(void); // function pointer equivalent of void*

-#define RSGL_PROC_DEF(proc, name) name##SRC = (name##PROC)(RSGL_gl_proc)proc(#name)

-

-typedef void (*RSGLapiproc)(void);

-typedef RSGLapiproc (*RSGLloadfunc)(const char *name);

-

-typedef void (*glShaderSourcePROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);

-typedef GLuint (*glCreateShaderPROC) (GLenum type);

-typedef void (*glCompileShaderPROC) (GLuint shader);

-typedef GLuint (*glCreateProgramPROC) (void);

-typedef void (*glAttachShaderPROC) (GLuint program, GLuint shader);

-typedef void (*glBindAttribLocationPROC) (GLuint program, GLuint index, const GLchar *name);

-typedef void (*glLinkProgramPROC) (GLuint program);

-typedef void (*glBindBufferPROC) (GLenum target, GLuint buffer);

-typedef void (*glBufferDataPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage);

-typedef void (*glEnableVertexAttribArrayPROC) (GLuint index);

-typedef void (*glVertexAttribPointerPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);

-typedef void (*glDisableVertexAttribArrayPROC) (GLuint index);

-typedef void (*glDeleteBuffersPROC) (GLsizei n, const GLuint *buffers);

-typedef void (*glUseProgramPROC) (GLuint program);

-typedef void (*glDetachShaderPROC) (GLuint program, GLuint shader);

-typedef void (*glDeleteShaderPROC) (GLuint shader);

-typedef void (*glDeleteProgramPROC) (GLuint program);

-typedef void (*glBufferSubDataPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);

-typedef void (*glGetShaderivPROC)(GLuint shader, GLenum pname, GLint *params);

-typedef void (*glGetShaderInfoLogPROC)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);

-typedef void (*glGetProgramivPROC)(GLuint program, GLenum pname, GLint *params);

-typedef void (*glGetProgramInfoLogPROC)(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);

-typedef void (*glGenBuffersPROC)(GLsizei n, GLuint *buffers);

-typedef GLint (*glGetUniformLocationPROC)(GLuint program, const GLchar *name);

-typedef GLint (*glGetAttribLocationPROC)(GLuint program, const GLchar *name);

-typedef void (*glUniformMatrix4fvPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);

-typedef void (*glTexImage2DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);

-typedef void (*glActiveTexturePROC) (GLenum texture);

-typedef void (*glUniform1fPROC) (GLint location, GLfloat v0);

-typedef void (*glUniform2fPROC) (GLint location, GLfloat v0, GLfloat v1);

-typedef void (*glUniform3fPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);

-typedef void (*glUniform4fPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);

-

-#if defined(RSGL_GLES3) || defined(RSGL_GL3)

-	typedef void (*glGenVertexArraysPROC)(GLsizei n, GLuint *arrays);

-	typedef void (*glBindVertexArrayPROC)(GLuint array);

-	typedef void (*glDeleteVertexArraysPROC) (GLsizei n, const GLuint *arrays);

-

-	glGenVertexArraysPROC glGenVertexArraysSRC = NULL;

-	glBindVertexArrayPROC glBindVertexArraySRC = NULL;

-	glDeleteVertexArraysPROC glDeleteVertexArraysSRC = NULL;

-#endif

-

-glShaderSourcePROC glShaderSourceSRC = NULL;

-glCreateShaderPROC glCreateShaderSRC = NULL;

-glCompileShaderPROC glCompileShaderSRC = NULL;

-glCreateProgramPROC glCreateProgramSRC = NULL;

-glAttachShaderPROC glAttachShaderSRC = NULL;

-glBindAttribLocationPROC glBindAttribLocationSRC = NULL;

-glLinkProgramPROC glLinkProgramSRC = NULL;

-glBindBufferPROC glBindBufferSRC = NULL;

-glBufferDataPROC glBufferDataSRC = NULL;

-glEnableVertexAttribArrayPROC glEnableVertexAttribArraySRC = NULL;

-glVertexAttribPointerPROC glVertexAttribPointerSRC = NULL;

-glDisableVertexAttribArrayPROC glDisableVertexAttribArraySRC = NULL;

-glDeleteBuffersPROC glDeleteBuffersSRC = NULL;

-glUseProgramPROC glUseProgramSRC = NULL;

-glDetachShaderPROC glDetachShaderSRC = NULL;

-glDeleteShaderPROC glDeleteShaderSRC = NULL;

-glDeleteProgramPROC glDeleteProgramSRC = NULL;

-glBufferSubDataPROC glBufferSubDataSRC = NULL;

-glGetShaderivPROC glGetShaderivSRC = NULL;

-glGetShaderInfoLogPROC glGetShaderInfoLogSRC = NULL;

-glGetProgramivPROC glGetProgramivSRC = NULL;

-glGetProgramInfoLogPROC glGetProgramInfoLogSRC = NULL;

-glGenBuffersPROC glGenBuffersSRC = NULL;

-glGetUniformLocationPROC glGetUniformLocationSRC = NULL;

-glGetAttribLocationPROC glGetAttribLocationSRC = NULL;

-glUniformMatrix4fvPROC glUniformMatrix4fvSRC = NULL;

-glActiveTexturePROC glActiveTextureSRC = NULL;

-glUniform1fPROC glUniform1fSRC = NULL;

-glUniform2fPROC glUniform2fSRC = NULL;

-glUniform3fPROC glUniform3fSRC = NULL;

-glUniform4fPROC glUniform4fSRC = NULL;

 

-typedef void (*glBindFramebufferPROC) (GLenum target, GLuint framebuffer);

-typedef void (*glGenFramebuffersPROC) (GLsizei n, GLuint *ids);

-typedef void (*glDeleteFramebuffersPROC) (GLsizei n, GLuint *framebuffers);

-typedef void (*glFramebufferTexture2DPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);

-

-#ifdef RSGL_USE_COMPUTE

-typedef void (*glDispatchComputePROC)(GLuint x, GLuint y, GLuint z);

-glDispatchComputePROC glDispatchComputeSRC = NULL;

-

-typedef void (*glMemoryBarrierPROC)(GLenum e);

-glMemoryBarrierPROC glMemoryBarrierSRC = NULL;

-

-typedef void (*glBindImageTexturePROC)(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format);

-glBindImageTexturePROC glBindImageTextureSRC = NULL;

-

-#endif

-

-glBindFramebufferPROC glBindFramebufferSRC = NULL;

-glGenFramebuffersPROC glGenFramebuffersSRC = NULL;

-glDeleteFramebuffersPROC glDeleteFramebuffersSRC = NULL;

-glFramebufferTexture2DPROC glFramebufferTexture2DSRC = NULL;

-

-#define glUniform1f glUniform1fSRC

-#define glUniform2f glUniform2fSRC

-#define glUniform3f glUniform3fSRC

-#define glUniform4f glUniform4fSRC

-#define glActiveTexture glActiveTextureSRC

-#define glShaderSource glShaderSourceSRC

-#define glCreateShader glCreateShaderSRC

-#define glCompileShader glCompileShaderSRC

-#define glCreateProgram glCreateProgramSRC

-#define glAttachShader glAttachShaderSRC

-#define glBindAttribLocation glBindAttribLocationSRC

-#define glLinkProgram glLinkProgramSRC

-#define glBindBuffer glBindBufferSRC

-#define glBufferData glBufferDataSRC

-#define glEnableVertexAttribArray glEnableVertexAttribArraySRC

-#define glVertexAttribPointer glVertexAttribPointerSRC

-#define glDisableVertexAttribArray glDisableVertexAttribArraySRC

-#define glDeleteBuffers glDeleteBuffersSRC

-#define glUseProgram glUseProgramSRC

-#define glDetachShader glDetachShaderSRC

-#define glDeleteShader glDeleteShaderSRC

-#define glDeleteProgram glDeleteProgramSRC

-#define glBufferSubData glBufferSubDataSRC

-#define glGetShaderiv glGetShaderivSRC

-#define glGetShaderInfoLog glGetShaderInfoLogSRC

-#define glGetProgramiv glGetProgramivSRC

-#define glGetProgramInfoLog glGetProgramInfoLogSRC

-#define glGenBuffers glGenBuffersSRC

-#define glGetUniformLocation glGetUniformLocationSRC

-#define glGetAttribLocation glGetAttribLocationSRC

-#define glUniformMatrix4fv glUniformMatrix4fvSRC

-#define glBindFramebuffer glBindFramebufferSRC

-#define glGenFramebuffers glGenFramebuffersSRC

-#define glDeleteFramebuffers glDeleteFramebuffersSRC

-#define glFramebufferTexture2D glFramebufferTexture2DSRC

-

-#if defined(RSGL_GLES3) || defined(RSGL_GL3)

-	#define glGenVertexArrays glGenVertexArraysSRC

-	#define glBindVertexArray glBindVertexArraySRC

-	#define glDeleteVertexArrays glDeleteVertexArraysSRC

+/* WebGL doesn't support compute shaders */

+#if defined(__EMSCRIPTEN__) && defined(RSGL_USE_COMPUTE)

+	#undef RSGL_USE_COMPUTE

 #endif

 

-#ifdef RSGL_USE_COMPUTE

-#define glMemoryBarrier glMemoryBarrierSRC

-#define glDispatchCompute glDispatchComputeSRC

-#define glBindImageTexture glBindImageTextureSRC

-#endif

+RSGL_renderer* RSGL_GL_renderer_init(void* loader) { return RSGL_renderer_init(RSGL_GL_rendererProc(), loader); }

+void RSGL_GL_renderer_initPtr(void* loader, RSGL_glRenderer* ptr, RSGL_renderer* renderer) { RSGL_renderer_initPtr(RSGL_GL_rendererProc(), loader, ptr, renderer); }

 

-#ifndef GL_TEXTURE_SWIZZLE_RGBA

-	#define GL_TEXTURE_SWIZZLE_RGBA 0x8E46

-#endif

+#define RSGL_MULTILINE_STR(...) #__VA_ARGS__

 

-extern int RSGL_loadGLModern(RSGLloadfunc proc);

-#endif

+struct RSGL_glRenderer {

+	u32 vao;

+};

 

-#define RSGL_MULTILINE_STR(...) #__VA_ARGS__

 size_t RSGL_GL_size(void) {

 	return sizeof(RSGL_glRenderer);

 }

@@ -290,8 +139,6 @@ RSGL_rendererProc RSGL_GL_rendererProc() {
 	proc.createFramebuffer = (RSGL_framebuffer (*)(void*, size_t, size_t))RSGL_GL_createFramebuffer;

 	proc.attachFramebuffer = (void (*)(void*, RSGL_framebuffer, RSGL_texture, u8, u8))RSGL_GL_attachFramebuffer;

 	proc.deleteFramebuffer = (void (*)(void*, RSGL_framebuffer))RSGL_GL_deleteFramebuffer;

-

-

 //	proc.setSurface = (void (*)(void*, void*))RSGL_GL_setSurface;

 #ifdef RSGL_USE_COMPUTE

 	proc.createComputeProgram = (RSGL_programInfo (*)(void*, const char*))RSGL_GL_createComputeProgram;

@@ -321,13 +168,16 @@ GLuint RSGL_GL_bufferTypeToNative(RSGL_bufferType type) {
 	switch (type) {

 		case RSGL_arrayBuffer: return GL_ARRAY_BUFFER;

 		case RSGL_elementArrayBuffer: return GL_ELEMENT_ARRAY_BUFFER;

-		#if !defined(__APPLE__)

+		#if !defined(__APPLE__) && !defined(RSGL_GLES2) && !defined(RSGL_GLES3)

 			case RSGL_shaderStorageBuffer: return GL_SHADER_STORAGE_BUFFER;

-		#endif

-		#if !defined(__APPLE__) || defined(RSGL_GLES3)

 			case RSGL_textureBuffer: return GL_TEXTURE_BUFFER;

 			case RSGL_uniformBuffer: return GL_UNIFORM_BUFFER;

+		#else

+			case RSGL_shaderStorageBuffer: RSGL_ASSERT(!"shader storage buffer is not supported");

+			case RSGL_textureBuffer: RSGL_ASSERT(!"shader texture buffer is not supported");

+			case RSGL_uniformBuffer: RSGL_ASSERT(!"uniform buffer is not supported");

 		#endif

+

 		default: break;

 	}

 

@@ -458,7 +308,7 @@ RSGL_programBlob RSGL_GL_defaultBlob(RSGL_glRenderer* ctx) {
 print matrix array code snippet

 	for (size_t iy = 0; iy < 4; iy++) {

 		for (size_t ix = 0; ix < 4; ix++) {

-			printf("%f, ", matrix[(iy * 4) + ix]);

+			printf"%f, ", matrix[(iy * 4) + ix]);

 		}

 		printf("\n");

 	}

@@ -469,23 +319,28 @@ print matrix array code snippet
 

 

 void RSGL_GL_initPtr(RSGL_glRenderer* ctx, void* proc) {

-    #if !defined(__EMSCRIPTEN__) && !defined(RSGL_NO_GL_LOADER)

-    if (RSGL_loadGLModern((RSGLloadfunc)proc)) {

-        #ifdef RSGL_DEBUG

-        printf("Failed to load an OpenGL 3.3 Context, reverting to OpenGL Legacy\n");

-        #endif

+	#if defined(RSGL_GL_USE_GLAD)

+	if (gladLoadGL((GLADloadfunc)proc) == 0) {

+        RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "Failed to load an OpenGL functions\n");

         return;

     }

-    #else

+	#else

     RSGL_UNUSED(proc);

     #endif

 

-#ifdef RSGL_DEBUG

-	printf("OpenGL Vendor: %s\n", glGetString(GL_VENDOR));

-	printf("OpenGL Renderer: %s\n", glGetString(GL_RENDERER));

-	printf("OpenGL Version: %s\n", glGetString(GL_VERSION));

-	printf("GLSL Version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION));

-#endif

+	char buf[256];

+

+	RSGL_SNPRINTF(buf, 256, "OpenGL Vendor: %s\n", glGetString(GL_VENDOR));

+	RSGL_debugCallback(RSGL_typeInfo, RSGL_infoBackend, buf);

+

+	RSGL_SNPRINTF(buf, 256, "OpenGL Renderer: %s\n", glGetString(GL_RENDERER));

+	RSGL_debugCallback(RSGL_typeInfo, RSGL_infoBackend, buf);

+

+	RSGL_SNPRINTF(buf, 256, "OpenGL Version: %s\n", glGetString(GL_VERSION));

+	RSGL_debugCallback(RSGL_typeInfo, RSGL_infoBackend, buf);

+	

+	RSGL_SNPRINTF(buf, 256, "GLSL Version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION));

+	RSGL_debugCallback(RSGL_typeInfo, RSGL_infoBackend, buf);

 

 #if defined(RSGL_GLES3) || defined(RSGL_GL3)

 	glGenVertexArrays(1, &ctx->vao);

@@ -571,12 +426,20 @@ void RSGL_GL_scissorEnd(RSGL_glRenderer* ctx) {
 GLuint RSGL_GL_textureFormatToNative(RSGL_textureFormat format) {

 	switch (format) {

 		case RSGL_formatRGB: return GL_RGB;

-		case RSGL_formatBGR: return GL_BGR;

 		case RSGL_formatRGBA: return GL_RGBA;

-		case RSGL_formatBGRA: return GL_BGRA;

-		case RSGL_formatRed: return GL_RED;

-		case RSGL_formatGrayscale: return GL_RED;

-		case RSGL_formatGrayscaleAlpha: return GL_RED;

+		#if !defined(RSGL_GLES2) && !defined(RSGL_GLES3)

+			case RSGL_formatBGR: return GL_BGR;

+			case RSGL_formatBGRA: return GL_BGRA;

+			case RSGL_formatRed: return GL_RED;

+			case RSGL_formatGrayscale: return GL_RED;

+			case RSGL_formatGrayscaleAlpha: return GL_RED;

+		#else

+			case RSGL_formatBGR: RSGL_ASSERT(!"GLES does not support BGR"); break;

+			case RSGL_formatBGRA: RSGL_ASSERT(!"GLES does not support BGRA"); break;

+			case RSGL_formatRed: RSGL_ASSERT(!"GLES does not support GL RED"); break;

+			case RSGL_formatGrayscale: RSGL_ASSERT(!"GLES does not support GL RED"); break;

+			case RSGL_formatGrayscaleAlpha: RSGL_ASSERT(!"GLES does not support GL RED"); break;

+		#endif

 		default: break;

 	}

 

@@ -631,7 +494,7 @@ RSGL_texture RSGL_GL_createTexture(RSGL_glRenderer* ctx, const RSGL_textureBlob*
 	u32 textureFormat = RSGL_GL_textureFormatToNative(blob->textureFormat);

 	u32 dataType = RSGL_GL_textureDataTypeToNative(blob->dataType);

 

-#ifndef RSGL_GLES2

+#if !defined(RSGL_GLES2) && !defined(RSGL_GLES3)

 	if (blob->dataFormat == RSGL_formatGrayscale) {

 		static GLint swizzleRgbaParams[4] = { GL_RED, GL_RED, GL_RED, GL_ONE  };

 		glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleRgbaParams);

@@ -658,7 +521,7 @@ void RSGL_GL_copyToTexture(RSGL_glRenderer* ctx, RSGL_texture texture, size_t x,
 

 	u32 dataType = RSGL_GL_textureDataTypeToNative(blob->dataType);

 

-#ifndef RSGL_GLES2

+#if !defined(RSGL_GLES2) && !defined(RSGL_GLES3)

 	if (blob->dataFormat == RSGL_formatGrayscale) {

 		static GLint swizzleRgbaParams[4] = { GL_RED, GL_RED, GL_RED, GL_ONE  };

 		glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleRgbaParams);

@@ -672,38 +535,33 @@ void RSGL_GL_copyToTexture(RSGL_glRenderer* ctx, RSGL_texture texture, size_t x,
     glBindTexture(GL_TEXTURE_2D, 0);

 }

 

-#ifndef GL_DEBUG_TYPE_ERROR

-#define GL_DEBUG_TYPE_ERROR               0x824C

-#define GL_DEBUG_OUTPUT                   0x92E0

-#define GL_DEBUG_OUTPUT_SYNCHRONOUS       0x8242

-#define GL_COMPILE_STATUS                 0x8B81

-#define GL_LINK_STATUS                    0x8B82

-#define GL_INFO_LOG_LENGTH                0x8B84

-#endif

-

-#ifdef RSGL_DEBUG

 void RSGL_opengl_getError(void) {

 	GLenum err;

 	while ((err = glGetError()) != GL_NO_ERROR) {

 		switch (err) {

-		case GL_INVALID_ENUM:

-			printf("OpenGL error: GL_INVALID_ENUM\n");

-			break;

-		case GL_INVALID_VALUE:

-			printf("OpenGL error: GL_INVALID_VALUE\n");

-			break;

-		case GL_INVALID_OPERATION:

-			printf("OpenGL error: GL_INVALID_OPERATION\n");

-			break;

-		case GL_STACK_OVERFLOW:

-			printf("OpenGL error: GL_STACK_OVERFLOW\n");

-			break;

-		case GL_STACK_UNDERFLOW:

-			printf("OpenGL error: GL_STACK_UNDERFLOW\n");

-			break;

-		default:

-			printf("OpenGL error: Unknown error code 0x%x\n", err);

-			break;

+			case GL_INVALID_ENUM:

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "OpenGL error: GL_INVALID_ENUM\n");

+				break;

+			case GL_INVALID_VALUE:

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "OpenGL error: GL_INVALID_VALUE\n");

+				break;

+			case GL_INVALID_OPERATION:

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "OpenGL error: GL_INVALID_OPERATION\n");

+				break;

+			#if !defined(RSGL_GLES2) && !defined(RSGL_GLES3)

+			case GL_STACK_OVERFLOW:

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "OpenGL error: GL_STACK_OVERFLOW\n");

+				break;

+			case GL_STACK_UNDERFLOW:

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, "OpenGL error: GL_STACK_UNDERFLOW\n");

+				break;

+			#endif

+			default: {

+				char buf[256];

+				RSGL_SNPRINTF(buf, 256, "OpenGL error: Unknown error code 0x%x\n", err);

+				RSGL_debugCallback(RSGL_typeError, RSGL_errorBackend, buf);

+				break;

+			}

 		}

 	}

 }

@@ -711,29 +569,35 @@ void RSGL_opengl_getError(void) {
 

 void RSGL_debug_shader(u32 src, const char *shader, const char *action) {

     GLint status;

+

 	if (action[0] == 'l')

 		glGetProgramiv(src, GL_LINK_STATUS, &status);

 	else

 		glGetShaderiv(src, GL_COMPILE_STATUS, &status);

 

-	if (status == GL_TRUE)

-		printf("%s Shader %s successfully.\n", shader, action);

-	else {

-		printf("%s Shader failed to %s.\n", shader, action);

+	char buf[1024];

+

+	if (status == GL_TRUE) {

+		RSGL_SNPRINTF(buf, 256, "%s Shader %s successfully.\n", shader, action);

+		RSGL_debugCallback(RSGL_typeInfo, RSGL_infoShader, buf);

+	} else {

+		RSGL_SNPRINTF(buf, 256, "%s Shader failed to %s.\n", shader, action);

+		RSGL_debugCallback(RSGL_typeError, RSGL_errorShader, buf);

 

 		GLchar infoLog[512];

 		if (action[0] == 'c') {

-			glGetShaderInfoLog(src, 512, NULL, infoLog);

-			printf("%s Shader info log:\n%s\n", shader, infoLog);

+			glGetShaderInfoLog(src, 1024, NULL, infoLog);

+			RSGL_SNPRINTF(buf, 1024, "%s Shader info log:\n%s\n", shader, infoLog);

 		} else {

-			glGetProgramInfoLog(src, 512, NULL, infoLog);

-			printf("%s info log:\n%s\n", shader, infoLog);

+			glGetProgramInfoLog(src, 1024, NULL, infoLog);

+			RSGL_SNPRINTF(buf, 1024, "%s info log:\n%s\n", shader, infoLog);

 		}

 

+		RSGL_debugCallback(RSGL_typeError, RSGL_errorShader, buf);

+

 		RSGL_opengl_getError();

 	}

 }

-#endif

 

 RSGL_programInfo RSGL_GL_createProgram(RSGL_glRenderer* ctx, RSGL_programBlob* blob) {

 	RSGL_programInfo program;

@@ -744,18 +608,14 @@ RSGL_programInfo RSGL_GL_createProgram(RSGL_glRenderer* ctx, RSGL_programBlob* b
 	glShaderSource(vShader, 1, &blob->vertex, NULL);

 	glCompileShader(vShader);

 

-#ifdef RSGL_DEBUG

 	RSGL_debug_shader(vShader, "Vertex", "compile");

-#endif

 

 	/* compile fragment shader */

 	fShader = glCreateShader(GL_FRAGMENT_SHADER);

 	glShaderSource(fShader, 1, &blob->fragment, NULL);

 	glCompileShader(fShader);

 

-#ifdef RSGL_DEBUG

 	RSGL_debug_shader(fShader, "Fragment", "compile");

-#endif

 

 	/* create program and link vertex and fragment shaders */

 	program.program = glCreateProgram();

@@ -764,9 +624,7 @@ RSGL_programInfo RSGL_GL_createProgram(RSGL_glRenderer* ctx, RSGL_programBlob* b
 	glAttachShader(program.program, fShader);

 	glLinkProgram(program.program);

 

-#ifdef RSGL_DEBUG

 	RSGL_debug_shader(program.program, "Program", "link");

-#endif

 

 	glDeleteShader(vShader);

 	glDeleteShader(fShader);

@@ -780,11 +638,9 @@ RSGL_programInfo RSGL_GL_createProgram(RSGL_glRenderer* ctx, RSGL_programBlob* b
 	program.perspectiveView = glGetUniformLocation(program.program, "pv");

 	program.model = glGetUniformLocation(program.program, "model");

 

-	#ifdef RSGL_DEBUG

 	if (program.perspectiveView < 0 || program.model < 0) {

-		printf("Failed to locate the shader variables\n");

+		RSGL_debugCallback(RSGL_typeError, RSGL_errorQueryFail, "Failed to locate the shader variables\n");

 	}

-	#endif

 

 	glUseProgram(0);

 

@@ -855,22 +711,6 @@ void RSGL_GL_deleteFramebuffer(RSGL_glRenderer* ctx, RSGL_framebuffer fbo) {
 

 #ifdef RSGL_USE_COMPUTE

 

-#ifndef GL_RG8

-#define GL_RG8 0x822B

-#endif

-

-#ifndef GL_READ_WRITE

-#define GL_READ_WRITE 0x88BA

-#endif

-

-#ifndef GL_COMPUTE_SHADER

-#define GL_COMPUTE_SHADER 0x91B9

-#endif

-

-#ifndef GL_SHADER_IMAGE_ACCESS_BARRIER_BIT

-#define GL_SHADER_IMAGE_ACCESS_BARRIER_BIT 0x00000020

-#endif

-

 RSGL_programInfo RSGL_GL_createComputeProgram(RSGL_glRenderer* ctx, const char* CShaderCode) {

 	RSGL_programInfo program;

 	program.type = RSGL_shaderTypeCompute;

@@ -879,16 +719,12 @@ RSGL_programInfo RSGL_GL_createComputeProgram(RSGL_glRenderer* ctx, const char*
 	glShaderSource(compute, 1, &CShaderCode, NULL);

 	glCompileShader(compute);

 

-#ifdef RSGL_DEBUG

 	RSGL_debug_shader(compute, "Compute", "compile");

-#endif

 

 	program.program = glCreateProgram();

 	glAttachShader(program.program, compute);

 	glLinkProgram(program.program);

-#ifdef RSGL_DEBUG

 	RSGL_debug_shader(program.program, "Program", "link");

-#endif

 

 	glDeleteShader(compute);

 

@@ -915,87 +751,4 @@ void RSGL_GL_bindComputeTexture(RSGL_glRenderer* ctx, u32 texture, u8 format) {
 

 #endif

 

-#ifndef RSGL_NO_GL_LOADER

-int RSGL_loadGLModern(RSGLloadfunc proc) {

-    RSGL_PROC_DEF(proc, glShaderSource);

-    RSGL_PROC_DEF(proc, glCreateShader);

-    RSGL_PROC_DEF(proc, glCompileShader);

-    RSGL_PROC_DEF(proc, glCreateProgram);

-    RSGL_PROC_DEF(proc, glAttachShader);

-    RSGL_PROC_DEF(proc, glBindAttribLocation);

-    RSGL_PROC_DEF(proc, glLinkProgram);

-    RSGL_PROC_DEF(proc, glBindBuffer);

-    RSGL_PROC_DEF(proc, glBufferData);

-    RSGL_PROC_DEF(proc, glEnableVertexAttribArray);

-    RSGL_PROC_DEF(proc, glVertexAttribPointer);

-    RSGL_PROC_DEF(proc, glDisableVertexAttribArray);

-    RSGL_PROC_DEF(proc, glDeleteBuffers);

-    RSGL_PROC_DEF(proc, glUseProgram);

-    RSGL_PROC_DEF(proc, glDetachShader);

-    RSGL_PROC_DEF(proc, glDeleteShader);

-    RSGL_PROC_DEF(proc, glDeleteProgram);

-    RSGL_PROC_DEF(proc, glBufferSubData);

-    RSGL_PROC_DEF(proc, glGetShaderiv);

-    RSGL_PROC_DEF(proc, glGetShaderInfoLog);

-    RSGL_PROC_DEF(proc, glGetProgramiv);

-    RSGL_PROC_DEF(proc, glGetProgramInfoLog);

-    RSGL_PROC_DEF(proc, glGenBuffers);

-    RSGL_PROC_DEF(proc, glGetUniformLocation);

-    RSGL_PROC_DEF(proc, glGetAttribLocation);

-    RSGL_PROC_DEF(proc, glUniformMatrix4fv);

-    RSGL_PROC_DEF(proc, glActiveTexture);

-    RSGL_PROC_DEF(proc, glUniform1f);

-    RSGL_PROC_DEF(proc, glUniform2f);

-    RSGL_PROC_DEF(proc, glUniform3f);

-    RSGL_PROC_DEF(proc, glUniform4f);

-    RSGL_PROC_DEF(proc, glBindFramebuffer);

-    RSGL_PROC_DEF(proc, glGenFramebuffers);

-    RSGL_PROC_DEF(proc, glDeleteFramebuffers);

-    RSGL_PROC_DEF(proc, glFramebufferTexture2D);

-#if defined(RSGL_GLES3) || defined(RSGL_GL3)

-	RSGL_PROC_DEF(proc, glBindVertexArray);

-	RSGL_PROC_DEF(proc, glGenVertexArrays);

-	RSGL_PROC_DEF(proc, glDeleteVertexArrays);

-#endif

-#ifdef RSGL_USE_COMPUTE

-	RSGL_PROC_DEF(proc, glDispatchCompute);

-	RSGL_PROC_DEF(proc, glMemoryBarrier);

-	RSGL_PROC_DEF(proc, glBindImageTexture);

-#endif

-

-    if (

-        glShaderSourceSRC == NULL ||

-        glCreateShaderSRC == NULL ||

-        glCompileShaderSRC == NULL ||

-        glCreateProgramSRC == NULL ||

-        glAttachShaderSRC == NULL ||

-        glBindAttribLocationSRC == NULL ||

-        glLinkProgramSRC == NULL ||

-        glBindBufferSRC == NULL ||

-        glBufferDataSRC == NULL ||

-        glVertexAttribPointerSRC == NULL ||

-        glDisableVertexAttribArraySRC == NULL ||

-        glDeleteBuffersSRC == NULL ||

-        glUseProgramSRC == NULL ||

-        glDetachShaderSRC == NULL ||

-        glDeleteShaderSRC == NULL ||

-        glDeleteProgramSRC == NULL ||

-        glBufferSubDataSRC == NULL ||

-        glGetShaderivSRC == NULL ||

-        glGetShaderInfoLogSRC == NULL ||

-        glGetProgramivSRC == NULL ||

-        glGetProgramInfoLogSRC == NULL ||

-        glGenBuffersSRC == NULL ||

-        glGetUniformLocationSRC == NULL ||

-        glUniformMatrix4fvSRC == NULL ||

-		glBindFramebufferSRC == NULL ||

-		glGenFramebuffersSRC == NULL ||

-		glDeleteFramebuffersSRC == NULL ||

-		glFramebufferTexture2DSRC == NULL

-    )

-        return 1;

-    return 0;

-}

-#endif

-

 #endif /* RSGL_IMPLEMENTATION */