diff options
| -rw-r--r-- | client2.cpp | 66 |
1 files changed, 50 insertions, 16 deletions
diff --git a/client2.cpp b/client2.cpp index f8df74f..b2c61d9 100644 --- a/client2.cpp +++ b/client2.cpp @@ -25,10 +25,13 @@ using namespace cv; #define PX_PER_DEG_WINDOWSIZE 3 +#define PX_PER_DEG_CANVAS 16 #define CANVAS_XDEG 450 #define CANVAS_YDEG 120 -#define CANVAS_WIDTH CANVAS_XDEG*PX_PER_DEG_WINDOWSIZE -#define CANVAS_HEIGHT CANVAS_YDEG*PX_PER_DEG_WINDOWSIZE +#define CANVAS_WIDTH CANVAS_XDEG*PX_PER_DEG_CANVAS +#define CANVAS_HEIGHT CANVAS_YDEG*PX_PER_DEG_CANVAS +#define SCREEN_WIDTH CANVAS_XDEG*PX_PER_DEG_WINDOWSIZE +#define SCREEN_HEIGHT CANVAS_YDEG*PX_PER_DEG_WINDOWSIZE @@ -53,6 +56,18 @@ const char* justDrawASpriteFragmentSource = " outColor = texture(texVideo, Texcoord);\n" "}\n"; +const char* justDrawASpriteFragmentSourceGray = + "#version 150\n" + "uniform sampler2D texVideo;\n" + "in vec2 Texcoord;\n" + "out vec4 outColor;\n" + "void main()\n" + "{\n" + " float gray = (texture(texVideo, Texcoord).r+ texture(texVideo, Texcoord).g + texture(texVideo, Texcoord).b)/3.;\n" + " if (Texcoord.x < 0.5) gray=1.0-gray;\n" + " outColor = vec4(gray,gray,gray,1.0);\n" + "}\n"; + float vertices[] = { -1.f, 1.f, 0.0f,0.0f, // Vertex 1 (X, Y) @@ -64,6 +79,18 @@ float vertices[] = { -1.f, 1.f, 0.0f,0.0f // Vertex 1 (X, Y) }; + +float quadVertices[] = { + -1.f, -1.f, 0.0f,0.0f, // Vertex 1 (X, Y) + 1.f, -1.f, 1.0f,0.0f, // Vertex 2 (X, Y) + 1.f, 1.f, 1.0f,1.0f, // Vertex 3 (X, Y) + + 1.f, 1.f, 1.0f,1.0f, // Vertex 3 (X, Y) + -1.f, 1.f, 0.0f,1.0f, // Vertex 4 (X, Y) + -1.f, -1.f, 0.0f,0.0f // Vertex 1 (X, Y) +}; + + void calcVerticesRotated(int xshift, int yshift, float angle, float* v) { Point2f pt; @@ -108,10 +135,10 @@ void compileShaderProgram(const GLchar* vertSrc, const GLchar* fragSrc, GLuint& glLinkProgram(shaderProgram); } -GLuint justDrawASpriteShaderProgram(GLuint vao, GLuint vbo) +GLuint justDrawASpriteShaderProgram(GLuint vao, GLuint vbo, bool gray=false) { GLuint vertexShader, fragmentShader, shaderProgram; - compileShaderProgram(justDrawASpriteVertexSource, justDrawASpriteFragmentSource, vertexShader, fragmentShader, shaderProgram); + compileShaderProgram(justDrawASpriteVertexSource, gray? justDrawASpriteFragmentSourceGray : justDrawASpriteFragmentSource, vertexShader, fragmentShader, shaderProgram); glBindVertexArray(vao); @@ -141,7 +168,7 @@ GLFWwindow* initOpenGL() glfwWindowHint(GLFW_RESIZABLE, GL_FALSE); - GLFWwindow* window = glfwCreateWindow(CANVAS_WIDTH, CANVAS_HEIGHT, "OpenGL", NULL, NULL); // Windowed + GLFWwindow* window = glfwCreateWindow(SCREEN_WIDTH, SCREEN_HEIGHT, "OpenGL", NULL, NULL); // Windowed // GLFWwindow* window = glfwCreateWindow(800, 600, "OpenGL", glfwGetPrimaryMonitor(), nullptr); // Fullscreen glfwMakeContextCurrent(window); @@ -212,8 +239,8 @@ int main(int argc, const char** argv) glBindBuffer(GL_ARRAY_BUFFER, vboCanvas); glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); - //glBindBuffer(GL_ARRAY_BUFFER, vboQuad); - //glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), quadVertices, GL_STATIC_DRAW); + glBindBuffer(GL_ARRAY_BUFFER, vboQuad); + glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), quadVertices, GL_STATIC_DRAW); @@ -221,6 +248,7 @@ int main(int argc, const char** argv) // compile shaders GLuint shaderProgram = justDrawASpriteShaderProgram(vaoCanvas, vboCanvas); + GLuint quadShaderProgram = justDrawASpriteShaderProgram(vaoQuad, vboQuad, true); // texture @@ -233,7 +261,7 @@ int main(int argc, const char** argv) glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); -/* + // Framebuffer stuff GLuint frameBuffer; glGenFramebuffers(1, &frameBuffer); @@ -243,17 +271,13 @@ int main(int argc, const char** argv) glGenTextures(1, &texColorBuffer); glBindTexture(GL_TEXTURE_2D, texColorBuffer); - glTexImage2D( - GL_TEXTURE_2D, 0, GL_RGB, 8000, 6000, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL - ); + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, CANVAS_WIDTH, CANVAS_HEIGHT, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glFramebufferTexture2D( - GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texColorBuffer, 0 - ); -*/ + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texColorBuffer, 0); + @@ -384,7 +408,6 @@ int main(int argc, const char** argv) - glBindTexture(GL_TEXTURE_2D, texVideo); Mat frame_gl = frame.clone(); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, frame_gl.size().width, frame_gl.size().height, 0, GL_RGB, GL_UNSIGNED_BYTE, frame_gl.ptr<unsigned char>(0)); @@ -396,6 +419,8 @@ int main(int argc, const char** argv) glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); + glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer); + glViewport(0,0,CANVAS_WIDTH,CANVAS_HEIGHT); glBindVertexArray(vaoCanvas); glUseProgram(shaderProgram); glActiveTexture(GL_TEXTURE0); @@ -403,6 +428,15 @@ int main(int argc, const char** argv) glDrawArrays(GL_TRIANGLES, 0, 6); + glBindFramebuffer(GL_FRAMEBUFFER, 0); + glViewport(0,0,SCREEN_WIDTH,SCREEN_HEIGHT); + glBindVertexArray(vaoQuad); + glUseProgram(quadShaderProgram); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, texColorBuffer); + glDrawArrays(GL_TRIANGLES, 0, 6); + + glfwSwapBuffers(window); glfwPollEvents(); |