test shader effect

TODO

@@ -33,6 +33,7 @@ restore ctrl+g and keybindings
 create a class for reading binary files
 handle corrupt errors in dat/spr
 
+create image class
 use CoordsBuffer in font
 cache into framebuffers
 implement glbuffer for CoordsBuffer

modules/shadertest.frag

@@ -0,0 +1,53 @@
+uniform sampler2D texture;
+varying vec2 textureCoords;
+uniform vec4 color;
+uniform float opacity;
+
+uniform float ticks;
+uniform float rt_w = 18*32;
+uniform float rt_h = 14*32;
+
+uniform float radius = 300.0;
+uniform float angle = 0.2;
+uniform vec2 center = vec2(8*32, 5*32);
+
+vec4 PostFX(sampler2D tex, vec2 uv, float time)
+{
+  vec2 texSize = vec2(rt_w, rt_h);
+  vec2 tc = uv * texSize;
+  tc -= center;
+  float dist = length(tc);
+  if (dist < radius)
+  {
+    float percent = (radius - dist) / radius;
+    float theta = percent * percent * ((int)ticks % 1000)/1000.0 * 8.0;
+    float s = sin(theta);
+    float c = cos(theta);
+    tc = vec2(dot(tc, vec2(c, -s)), dot(tc, vec2(s, c)));
+  }
+  tc += center;
+  vec3 color = texture2D(texture, tc / texSize).rgb;
+  return vec4(color, 1.0);
+}
+
+void main (void)
+{
+  vec2 uv = textureCoords.st;
+  gl_FragColor = PostFX(texture, uv, ticks) * opacity;
+}
+
+/*
+uniform float opacity;
+vec4 calculatePixel();
+void main()
+{
+    gl_FragColor = calculatePixel() * opacity;
+}
+
+varying vec2 textureCoords;
+uniform vec4 color;
+uniform sampler2D texture;
+vec4 calculatePixel() {
+    return texture2D(texture, textureCoords) * color;
+}
+*/

src/framework/graphics/glbuffer.cpp

@@ -22,3 +22,20 @@
 
 #include "glbuffer.h"
 
+GLBuffer::GLBuffer()
+{
+    glGenBuffers(1, &m_id);
+    if(!m_id)
+        logFatal("Unable to create a simple GL buffer");
+}
+
+void GLBuffer::bind()
+{
+    gl
+}
+
+void GLBuffer::release()
+{
+
+}
+

src/framework/graphics/glbuffer.h

@@ -23,8 +23,22 @@
 #ifndef GLBUFFER_H
 #define GLBUFFER_H
 
+#include "declarations.h"
+
 class GLBuffer
 {
+public:
+    GLBuffer();
+    ~GLBuffer();
+
+    void write(const
+    void bind();
+    void release();
+
+    GLuint bufferId();
+
+private:
+    GLuint m_id;
 };
 
 #endif

src/framework/graphics/painter.cpp

@@ -47,6 +47,7 @@ void Painter::init()
     program->bindUniformLocation(PainterShaderProgram::COLOR_UNIFORM, "color");
     program->bindUniformLocation(PainterShaderProgram::OPACITY_UNIFORM, "opacity");
     program->bindUniformLocation(PainterShaderProgram::TEXTURE_UNIFORM, "texture");
+    program->bindUniformLocation(PainterShaderProgram::TICKS_UNIFORM, "ticks");
     m_drawTexturedProgram = program;
 
     program = PainterShaderProgramPtr(new PainterShaderProgram);
@@ -57,6 +58,7 @@ void Painter::init()
     program->bindUniformLocation(PainterShaderProgram::PROJECTION_MATRIX_UNIFORM, "projectionMatrix");
     program->bindUniformLocation(PainterShaderProgram::COLOR_UNIFORM, "color");
     program->bindUniformLocation(PainterShaderProgram::OPACITY_UNIFORM, "opacity");
+    program->bindUniformLocation(PainterShaderProgram::TICKS_UNIFORM, "ticks");
     m_drawSolidColorProgram = program;
 }
 

src/framework/graphics/painter.h

@@ -57,6 +57,8 @@ public:
 
     void setCompositionMode(CompositionMode compositionMode);
 
+    GLfloat *getProjectionMatrix() { return (GLfloat*)m_projectionMatrix; }
+
 private:
     PainterShaderProgramPtr m_drawTexturedProgram;
     PainterShaderProgramPtr m_drawSolidColorProgram;

src/framework/graphics/paintershaderprogram.cpp

@@ -24,6 +24,7 @@
 #include "painter.h"
 #include "texture.h"
 #include "texturemanager.h"
+#include <framework/core/clock.h>
 
 void PainterShaderProgram::setProjectionMatrix(float projectionMatrix[3][3])
 {
@@ -76,6 +77,7 @@ void PainterShaderProgram::setTextureCoords(const GLfloat *textureCoords)
 void PainterShaderProgram::prepareForDraw()
 {
     assert(bind());
+    setUniformValue(TICKS_UNIFORM, (GLfloat)g_clock.ticks());
 }
 
 void PainterShaderProgram::drawTriangleStrip(int numVertices)

src/framework/graphics/paintershaderprogram.h

@@ -35,7 +35,8 @@ public:
         TEXTURE_TRANSFORM_MATRIX_UNIFORM = 1,
         COLOR_UNIFORM = 2,
         OPACITY_UNIFORM = 3,
-        TEXTURE_UNIFORM = 4
+        TEXTURE_UNIFORM = 4,
+        TICKS_UNIFORM = 5
     };
 
     void setProjectionMatrix(GLfloat projectionMatrix[3][3]);

src/framework/graphics/shader.cpp

@@ -21,6 +21,7 @@
  */
 
 #include "shader.h"
+#include <framework/core/resourcemanager.h>
 
 Shader::Shader(Shader::ShaderType shaderType)
 {
@@ -70,8 +71,7 @@ bool Shader::compileSourceCode(const std::string& sourceCode)
 
 bool Shader::compileSourceFile(const std::string& sourceFile)
 {
-    std::ifstream fin(sourceFile);
-    std::string sourceCode((std::istreambuf_iterator<char>(fin)), std::istreambuf_iterator<char>());
+    std::string sourceCode = g_resources.loadFile(sourceFile);
     return compileSourceCode(sourceCode);
 }
 

src/otclient/core/map.cpp

@@ -28,7 +28,9 @@
 #include "missile.h"
 #include <framework/graphics/graphics.h>
 #include <framework/graphics/framebuffer.h>
-
+#include <framework/graphics/paintershaderprogram.h>
+#include <framework/graphics/paintershadersources.h>
+#include <framework/graphics/texture.h>
 Map g_map;
 
 Map::Map()
@@ -36,11 +38,27 @@ Map::Map()
     setVisibleSize(Size(MAP_VISIBLE_WIDTH, MAP_VISIBLE_HEIGHT));
 }
 
+PainterShaderProgramPtr program;
 void Map::draw(const Rect& rect)
 {
-    if(!m_framebuffer)
+    if(!m_framebuffer) {
         m_framebuffer = FrameBufferPtr(new FrameBuffer(m_visibleSize.width() * NUM_TILE_PIXELS, m_visibleSize.height() * NUM_TILE_PIXELS));
 
+
+        program = PainterShaderProgramPtr(new PainterShaderProgram);
+        program->addShaderFromSourceCode(Shader::Vertex, glslMainWithTexCoordsVertexShader + glslPositionOnlyVertexShader);
+        program->addShaderFromSourceFile(Shader::Fragment, "/shadertest.frag");
+        program->bindAttributeLocation(VERTEX_COORDS_ATTR, "vertexCoord");
+        program->bindAttributeLocation(TEXTURE_COORDS_ATTR, "textureCoord");
+        assert(program->link());
+        program->bindUniformLocation(PainterShaderProgram::PROJECTION_MATRIX_UNIFORM, "projectionMatrix");
+        program->bindUniformLocation(PainterShaderProgram::TEXTURE_TRANSFORM_MATRIX_UNIFORM, "textureTransformMatrix");
+        program->bindUniformLocation(PainterShaderProgram::COLOR_UNIFORM, "color");
+        program->bindUniformLocation(PainterShaderProgram::OPACITY_UNIFORM, "opacity");
+        program->bindUniformLocation(PainterShaderProgram::TEXTURE_UNIFORM, "texture");
+        program->bindUniformLocation(PainterShaderProgram::TICKS_UNIFORM, "ticks");
+    }
+
     g_painter.setColor(Fw::white);
     m_framebuffer->bind();
 
@@ -82,8 +100,22 @@ void Map::draw(const Rect& rect)
 
     m_framebuffer->release();
 
-    g_painter.setColor(Fw::white);
-    m_framebuffer->draw(rect);
+    //g_painter.setColor(Fw::white);
+    //m_framebuffer->draw(rect);
+
+
+    CoordsBuffer coordsBuffer;
+    coordsBuffer.addRect(rect, Rect(0,0,m_framebuffer->getTexture()->getSize()));
+    coordsBuffer.cacheVertexArrays();
+    program->prepareForDraw();
+    program->setProjectionMatrix((GLfloat (*)[3])g_painter.getProjectionMatrix());
+    program->setOpacity(1.0f);
+    program->setColor(Fw::white);
+    program->setTexture(m_framebuffer->getTexture());
+    program->setVertexCoords(coordsBuffer.getVertexCoords());
+    program->setTextureCoords(coordsBuffer.getTextureCoords());
+    program->drawTriangles(coordsBuffer.getVertexCount());
+    program->releaseFromDraw();
 
     // calculate stretch factor
     float horizontalStretchFactor = rect.width() / (float)(m_visibleSize.width() * NUM_TILE_PIXELS);