From 492571207dce0f661dfa4f47d2dae942bb819090 Mon Sep 17 00:00:00 2001
From: Maschell <Maschell@gmx.de>
Date: Fri, 1 Mar 2019 19:18:03 +0100
Subject: [PATCH] Implement support for DrawTexture hook

---
 src/myutils/texture_utils.cpp | 23 +++++++++++++++++++++++
 src/myutils/texture_utils.h   |  3 ++-
 src/patcher/hooks_patcher.cpp |  2 ++
 src/utils.cpp                 |  1 +
 4 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/myutils/texture_utils.cpp b/src/myutils/texture_utils.cpp
index c5248e9..7a638ba 100644
--- a/src/myutils/texture_utils.cpp
+++ b/src/myutils/texture_utils.cpp
@@ -41,6 +41,29 @@ void gdImageToUnormR8G8B8A8(gdImagePtr gdImg, u32 *imgBuffer, u32 width, u32 hei
     }
 }
 
+
+void TextureUtils::drawTexture(GX2Texture * texture, GX2Sampler* sampler, float x, float y, int32_t width, int32_t height, float alpha = 1.0f) {
+    float widthScaleFactor = 1.0f / (float)1280;
+    float heightScaleFactor = 1.0f / (float)720;
+
+    glm::vec3 positionOffsets = glm::vec3(0.0f);
+
+    positionOffsets[0] = (x-((1280)/2)+(width/2)) * widthScaleFactor * 2.0f;
+    positionOffsets[1] = -(y-((720)/2)+(height/2)) * heightScaleFactor * 2.0f;
+
+    glm::vec3 scale(width*widthScaleFactor,height*heightScaleFactor,1.0f);
+
+    Texture2DShader::instance()->setShaders();
+    Texture2DShader::instance()->setAttributeBuffer();
+    Texture2DShader::instance()->setAngle(0.0f);
+    Texture2DShader::instance()->setOffset(positionOffsets);
+    Texture2DShader::instance()->setScale(scale);
+    Texture2DShader::instance()->setColorIntensity(glm::vec4(alpha));
+    Texture2DShader::instance()->setBlurring(glm::vec3(0.0f));
+    Texture2DShader::instance()->setTextureAndSampler(texture, sampler);
+    Texture2DShader::instance()->draw();
+}
+
 bool TextureUtils::convertImageToTexture(const uint8_t *img, int32_t imgSize, void * _texture){
     if(!img || (imgSize < 8) || _texture == NULL){
         return false;
diff --git a/src/myutils/texture_utils.h b/src/myutils/texture_utils.h
index 7545ed9..68d23c5 100644
--- a/src/myutils/texture_utils.h
+++ b/src/myutils/texture_utils.h
@@ -18,11 +18,12 @@
 #define __TEXTURE_UTILS_UTILS_H_
 #include <stdint.h>
 #include <dynamic_libs/gx2_functions.h>
+#include <video/shaders/Texture2DShader.h>
 
 class TextureUtils {
 public:
     static bool convertImageToTexture(const uint8_t *img, int32_t imgSize, void * texture);
-
+    static void drawTexture(GX2Texture * texture, GX2Sampler* sampler, float x, float y, int32_t width, int32_t height, float alpha);
 private:
     TextureUtils() {}
     ~TextureUtils() {}
diff --git a/src/patcher/hooks_patcher.cpp b/src/patcher/hooks_patcher.cpp
index 94956e9..952f31e 100644
--- a/src/patcher/hooks_patcher.cpp
+++ b/src/patcher/hooks_patcher.cpp
@@ -8,6 +8,7 @@
 #include "main.h"
 #include "utils.h"
 #include "mymemory/memory_mapping.h"
+#include <video/shaders/Texture2DShader.h>
 
 DECL(uint32_t, ProcUIProcessMessages, uint32_t u) {
     uint32_t res = real_ProcUIProcessMessages(u);
@@ -20,6 +21,7 @@ DECL(uint32_t, ProcUIProcessMessages, uint32_t u) {
             CallHook(WUPS_LOADER_HOOK_ENDING_APPLICATION);
             ConfigUtils::saveConfigToSD();
             DeInit();
+            Texture2DShader::destroyInstance();
         }
     }
 
diff --git a/src/utils.cpp b/src/utils.cpp
index b2008f9..e08b1b7 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -69,6 +69,7 @@ void CallHookEx(wups_loader_hook_type_t hook_type, int32_t plugin_index_needed)
                         wups_loader_init_overlay_args_t args;
                         args.overlayfunction_ptr = &overlay_helper;
                         args.textureconvertfunction_ptr = &TextureUtils::convertImageToTexture;
+                        args.drawtexturefunction_ptr = (void (*)(void*,void*,float,float,int32_t,int32_t,float)) &TextureUtils::drawTexture;
                         ((void (*)(wups_loader_init_overlay_args_t))((uint32_t*)func_ptr) )(args);
                     } else if(hook_type == WUPS_LOADER_HOOK_INIT_PLUGIN) {
                         ((void (*)(void))((uint32_t*)func_ptr) )();