From b9b099f440ee04de3fb9abefe4f5e06cc4d2a9b3 Mon Sep 17 00:00:00 2001
From: devseed <devseed@163.com>
Date: Tue, 14 Feb 2023 22:25:15 +0900
Subject: [PATCH] fix gles render in windows

---
 .vscode/c_cpp_properties.json          |  2 +-
 .vscode/launch.json                    |  1 +
 README.md                              |  1 +
 src/onsyuri/ONScripter.cpp             | 11 ++++++++++-
 src/onsyuri/renderer/gles_renderer.cpp |  4 ----
 src/onsyuri/renderer/gles_renderer.h   | 19 ++++++++++++-------
 6 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 014603d..e4ebc93 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -8,7 +8,7 @@
         {
             "name": "Mingw32",
             "includePath": [
-                "${workspaceFolder}/src/onsjh/**",
+                "${workspaceFolder}/src/onsyuri/**",
                 "${msys2sdk}/mingw32/include"
             ],
             "defines": [
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 84ce788..e427cc7 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -11,6 +11,7 @@
             "program": "${workspaceRoot}/build_mingw32/onsyuri.exe",
             "args": ["--debug:0", // "--fullscreen2",
                 // "--width", "960", "--height", "544", 
+                "--sharpness", "1.1",  
                 "--root", "test", "--font", "test/default.ttf", "--save-dir", "${workspaceFolder}/save"],
             "stopAtEntry": false,
             "cwd": "${workspaceRoot}/asset",
diff --git a/README.md b/README.md
index b4bffd1..7647f70 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,7 @@ New features or plans:
 - render
   - [x] support fullscreen by `--fullscreen` or `alt+enter`, scretch to fullscreen by `--fullscreen2` or `f11`  
   - [x] support arbitary resolution `--width`, `--height`  
+  - [x] gles2 sharpness rendering by `--sharpness 1.0` parameter, fix bug on windows
   - [ ] video support (future plan)
 - other
   - [x] support `nt2`, `nt3` encryption format by Mine
diff --git a/src/onsyuri/ONScripter.cpp b/src/onsyuri/ONScripter.cpp
index 210feba..00a8f75 100644
--- a/src/onsyuri/ONScripter.cpp
+++ b/src/onsyuri/ONScripter.cpp
@@ -201,8 +201,11 @@ void ONScripter::initSDL()
     SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 0);
     SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
-#if defined(USE_GLES2)
+#if defined(USE_GLES)
     if (!isnan(sharpness)) {
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
+        SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
         SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengles2");
     }
 #endif
@@ -214,6 +217,12 @@ void ONScripter::initSDL()
     window_flag |= SDL_WINDOW_ALLOW_HIGHDPI;
 #endif
 
+#if defined(USE_GLES)
+    if (!isnan(sharpness)) {
+        window_flag |= SDL_WINDOW_OPENGL;
+    }
+#endif
+
     int window_x = SDL_WINDOWPOS_CENTERED, window_y = SDL_WINDOWPOS_CENTERED;
 
     window = SDL_CreateWindow(NULL, window_x, window_y, screen_device_width, screen_device_height, window_flag);
diff --git a/src/onsyuri/renderer/gles_renderer.cpp b/src/onsyuri/renderer/gles_renderer.cpp
index b0b9e87..b095f27 100644
--- a/src/onsyuri/renderer/gles_renderer.cpp
+++ b/src/onsyuri/renderer/gles_renderer.cpp
@@ -88,10 +88,6 @@ void GlesRenderer::initVertexData() {
 GlesRenderer::GlesRenderer(SDL_Window *window, SDL_Texture *texture, const float input_size[2], const float output_size[2], const float sharpness) {
 #if defined(IOS) || defined(ANDROID)
 //#define SDL_PROC(ret,func,params) func=func;
-#else
-#define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
-#include "gles2funcs.h"
-#undef SDL_PROC
 #endif
     this->window = window;
     this->texture = texture;
diff --git a/src/onsyuri/renderer/gles_renderer.h b/src/onsyuri/renderer/gles_renderer.h
index 22e967b..8dc9dbc 100644
--- a/src/onsyuri/renderer/gles_renderer.h
+++ b/src/onsyuri/renderer/gles_renderer.h
@@ -23,15 +23,12 @@
 #include <SDL2/SDL.h>
 
 #if defined(_WIN32) && !defined(_MSC_VER)
-#define _MSC_VER 1200
+#define SDL_USE_BUILTIN_OPENGL_DEFINITIONS
 #include <SDL2/SDL_opengles2.h>
-#undef _MSC_VER
 #else
 #include <SDL2/SDL_opengles2.h>
 #endif
 
-
-
 class GlesRenderer {
     SDL_Window *window;
 	SDL_Texture *texture;
@@ -46,10 +43,18 @@ class GlesRenderer {
 	int output_size[2];
 	bool _pause = false;
 #if !(defined(IOS) || defined(ANDROID))
-#define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
-#include "gles2funcs.h"
-#undef SDL_PROC
+	
+	#if defined(WIN32) || defined(_WIN32)
+		#define SDL_PROC(ret,func,params) \
+			ret (APIENTRY *func) params = (ret (APIENTRY *) params) SDL_GL_GetProcAddress(#func);
+	#else
+		#define SDL_PROC(ret,func,params) ret (APIENTRY *func) params;
+	#endif
+
+	#include "gles2funcs.h"
+	#undef SDL_PROC
 #endif
+
 	GLuint createShader(GLenum shader_type, const GLchar* shader_src);
 	void initVertexData();
 public: