add texture

src/ImageBuffer.cpp

@@ -1,7 +1,18 @@
 #include "ImageBuffer.h"
 
+#include "Texture2D.h"
 #include "Core/Thread/ScopeLock.h"
 
+ImageBuffer* Singleton<ImageBuffer>::instance_ = nullptr;
+
+bool ImageBuffer::Initialize() {
+    return true;
+}
+
+void ImageBuffer::Uninitialize() {
+
+}
+
 void ImageBuffer::PushImage(ImageBuffer::IBType type, std::vector<unsigned char> data,
     uint32 width, uint32 height, uint32 comp) {
 	switch (type) {
@@ -13,12 +24,30 @@ void ImageBuffer::PushImage(ImageBuffer::IBType type, std::vector<unsigned char>
 	}
 }
 
+void ImageBuffer::Update(IBType type, Texture2D* texture) {
+    switch (type) {
+    case ImageBuffer::IBType::Background:
+        UpdateBackground(texture);
+        break;
+    default:
+        break;
+    }
+}
+
 void ImageBuffer::PushBackgroundImage(std::vector<uint8> data, uint32 width, uint32 height, uint32 comp) {
     ScopeLock<CriticalSection> lock(&cs_);
-    if (background_.size() >= 10) {
-        background_.pop();
+ 
+    background_.data = std::move(data);
+    background_.width = width;
+    background_.height = height;
+    background_.comp = comp;
+}
+
+void ImageBuffer::UpdateBackground(Texture2D* texture) {
+    if (background_.data.empty()) {
+        return;
     }
 
-    Image newImage{ std::move(data), width, height, comp };
-    background_.push(std::move(newImage));
+    ScopeLock<CriticalSection> lock(&cs_);
+    texture->Update(background_.width, background_.height, background_.comp, background_.data.data());
 }

src/ImageBuffer.h

@@ -19,11 +19,15 @@ public:
     ImageBuffer(const ImageBuffer&) = delete;
     ImageBuffer& operator=(const ImageBuffer&) = delete;
 
+    bool Initialize() override;
+    void Uninitialize() override;
+
     void PushImage(IBType type, std::vector<uint8> data, uint32 width, uint32 height, uint32 comp);
+    void Update(IBType type, class Texture2D* texture);
 
 private:
     void PushBackgroundImage(std::vector<uint8> data, uint32 width, uint32 height, uint32 comp);
-
+    void UpdateBackground(class Texture2D* texture);
 private:
     struct Image {
         std::vector<uint8> data;
@@ -32,7 +36,7 @@ private:
         uint32 comp;
     };
     CriticalSection cs_;
-    std::queue<Image> background_;
+    Image background_;
     
 
 };

src/Ipc/IpcMoudle.cpp

@@ -7,6 +7,7 @@
 
 #include "Core/Core.h"
 #include "Ipc/ipclib.h"
+#include "ImageBuffer.h"
 
 IpcMoudle* Singleton<IpcMoudle>::instance_ = nullptr;
 
@@ -34,8 +35,10 @@ void OnParseImageData(const char* data, size_t size) {
     // Extract image bytes
     const char* img_bytes = data + 13;
     size_t img_size = size - 13;
+    std::vector<uint8> img_data(img_size);
+    memcpy(img_data.data(), img_bytes, img_size);
     
-
+    ImageBuffer::Get()->PushImage(ImageBuffer::IBType::Background, std::move(img_data), width, height, bit_depth);
     // Further processing of img_bytes can be done here
 }
 

src/Main.cpp

@@ -10,12 +10,15 @@
 
 #include "Core/Logger.h"
 #include "Ipc/IpcMoudle.h"
+#include "ImageBuffer.h"
 #include "shader_s.h"
+#include "Texture2D.h"
 
 
 static int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPWSTR lpCmdLine, _In_ int nCmdShow) {
     Logger::Init();
     IpcMoudle::Init();
+    ImageBuffer::Init();
     auto glfwErrorCallback = [](int error, const char* description) {
         ERRORLOG("code={}, description={}", error, description);
         };
@@ -112,33 +115,26 @@ static int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevI
     // VAOs requires a call to glBindVertexArray anyways so we generally don't unbind VAOs (nor VBOs) when it's not directly necessary.
     glBindVertexArray(0);
 
-    unsigned int texture;
-    glGenTextures(1, &texture);
-    glBindTexture(GL_TEXTURE_2D, texture); // all upcoming GL_TEXTURE_2D operations now have effect on this texture object
-    // set the texture wrapping parameters
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);	// set texture wrapping to GL_REPEAT (default wrapping method)
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-    // set texture filtering parameters
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    // load image, create texture and generate mipmaps
+    Texture2D background;
     int width, height, nrChannels;
     // The FileSystem::getPath(...) is part of the GitHub repository so we can find files on any IDE/platform; replace it with your own image path.
     stbi_set_flip_vertically_on_load(true);
     unsigned char* data = stbi_load("./data/background/background.jpg", &width, &height, &nrChannels, 0);
     if (data) {
-        if (nrChannels == 3) {
-            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
-        } else if (nrChannels == 4) {
-            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
-        }
-        glGenerateMipmap(GL_TEXTURE_2D);
+        background.Create(width, height, nrChannels, nullptr);
+        background.Update(width, height, nrChannels, data);
     } else {
         std::cout << "Failed to load texture" << std::endl;
     }
     stbi_image_free(data);
 
+    Texture2D huaman;
+    huaman.Create(1920, 1080, 4, nullptr);
+
     Shader shader("./data/shader/texture.vs", "./data/shader/texture.fs");
+    shader.use();
+    shader.setInt("background", 0);
+    shader.setInt("human", 1);
 
     while (!glfwWindowShouldClose(window)) {
 
@@ -156,10 +152,13 @@ static int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevI
         view = glm::lookAt(glm::vec3(0, 0, 10), glm::vec3(0, 0, 0), glm::vec3(0, 1, 0));
         projection = glm::perspective(glm::radians(60.f), ratio, 1.f, 1000.f);
 
-        glBindTexture(GL_TEXTURE_2D, texture);
-        shader.use();
+        ImageBuffer::Get()->Update(ImageBuffer::IBType::Background, &huaman);
 
         glBindVertexArray(VAO);
+        shader.use();
+        background.Active(0);
+        huaman.Active(1);
+
         glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
        
         glfwSwapBuffers(window);
@@ -168,11 +167,12 @@ static int APIENTRY wWinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevI
 
     glBindVertexArray(VAO); // seeing as we only have a single VAO there's no need to bind it every time, but we'll do so to keep things a bit more organized
     //glDrawArrays(GL_TRIANGLES, 0, 6);
-    glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+    //glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
 
     glfwDestroyWindow(window);
     glfwTerminate();
 
+    ImageBuffer::Shotdown();
     IpcMoudle::Shotdown();
     Logger::Shotdown();
     return 0;

src/RHI/OpenglDrv/gl.h

@@ -1,7 +1,15 @@
 #pragma once
 
 //#include <glad/glad.h>
+#include "Core/Logger.h"
 
 #define GLEW_STATIC
 #include <GL/glew.h>
 #include <glfw/glfw3.h>
+
+#define __CHECK_GL_ERROR__ { \
+        auto gl_error_code=glGetError();\
+        if(gl_error_code!=GL_NO_ERROR){\
+            ERRORLOG("gl_error_code: {}", static_cast<int>(gl_error_code));\
+        }\
+    }

src/Texture2D.cpp

@@ -0,0 +1,75 @@
+#include "Texture2D.h"
+
+#include "RHI/OpenglDrv/gl.h"
+
+
+Texture2D::Texture2D() noexcept {
+    glGenTextures(1, &texture_);
+}
+
+Texture2D::~Texture2D() {
+    if (0 == texture_) {
+        return;
+    }
+
+    glDeleteTextures(1, &texture_);
+    texture_ = 0;
+}
+
+bool Texture2D::Create(int32 width, int32 height, int32 nrChannels, uint8* data) noexcept {
+    if (0 == texture_) {
+        return false;
+    }
+    width_ = width;
+    height_ = height;
+    channels_ = nrChannels;
+    GLenum format = GL_RGB;
+    if (nrChannels == 1) {
+        format = GL_RED;
+    } else if (nrChannels == 3) {
+        format = GL_RGB;
+    } else if (nrChannels == 4) {
+        format = GL_RGBA;
+    }
+    bool alloced = false;
+    if (nullptr == data) {
+        const uint32 size = width * height * nrChannels;
+        data = new uint8[size];
+        memset(data, 0, size);
+        alloced = true;
+    }
+
+    glBindTexture(GL_TEXTURE_2D, texture_);
+    glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); __CHECK_GL_ERROR__
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); __CHECK_GL_ERROR__
+    
+    if (alloced) {
+        delete[] data;
+    }
+
+    //glGenerateMipmap(GL_TEXTURE_2D);
+    return true;
+}
+
+void Texture2D::Update(int32 width, int32 height, int32 channels, uint8* data) noexcept {
+    if (0 == texture_ || nullptr == data) {
+        return;
+    }
+    glBindTexture(GL_TEXTURE_2D, texture_); __CHECK_GL_ERROR__
+    glPixelStorei(GL_UNPACK_ALIGNMENT, 1); __CHECK_GL_ERROR__
+    if (3 == channels){ 
+        glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, data); __CHECK_GL_ERROR__
+    } else if (4 == channels) {
+        glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data); __CHECK_GL_ERROR__
+    }    
+}
+
+void Texture2D::Active(int32 txture) {
+    if (0 == texture_) {
+        return;
+    }
+
+    glActiveTexture(GL_TEXTURE0 + txture);
+    glBindTexture(GL_TEXTURE_2D, texture_);
+}

src/Texture2D.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "Core/Core.h"
+
+class Texture2D {
+public:
+    explicit Texture2D() noexcept;
+    ~Texture2D();
+
+    bool Create(int32 width, int32 height, int32 channels, uint8* data) noexcept;
+    void Update(int32 width, int32 height, int32 channels, uint8* data) noexcept;
+    void Active(int32 txture);
+
+private:
+    uint32 texture_{ 0 };
+
+    int32 width_{ 0 };
+    int32 height_{ 0 };
+    int32 channels_{ 0 };
+};

src/shader_s.h

@@ -1,9 +1,7 @@
 #ifndef SHADER_H
 #define SHADER_H
 
-#define GLEW_STATIC
-#include <GL/glew.h>
-#include <glfw/glfw3.h>
+#include "RHI/OpenglDrv/gl.h"
 
 #include <string>
 #include <fstream>