From d894c07d3e240472295d274b896b5c6bb90abdd9 Mon Sep 17 00:00:00 2001 From: themancalledjakob Date: Sun, 2 Apr 2023 16:14:14 +0200 Subject: [PATCH] draw debug sdfatlas --- data/ofxGPUFont/shaders/GL3/font.frag | 1 + example/src/gpufont/font.hpp | 4 +- example/src/ofApp.cpp | 150 +++++++++++++++++--------- example/src/ofApp.h | 7 ++ 4 files changed, 108 insertions(+), 54 deletions(-) diff --git a/data/ofxGPUFont/shaders/GL3/font.frag b/data/ofxGPUFont/shaders/GL3/font.frag index 17964bd..feb844a 100644 --- a/data/ofxGPUFont/shaders/GL3/font.frag +++ b/data/ofxGPUFont/shaders/GL3/font.frag @@ -12,6 +12,7 @@ struct Curve { uniform isamplerBuffer glyphs; uniform samplerBuffer curves; +uniform sampler2D iChannel0; uniform vec4 color; diff --git a/example/src/gpufont/font.hpp b/example/src/gpufont/font.hpp index d4e1078..a7eeaaa 100644 --- a/example/src/gpufont/font.hpp +++ b/example/src/gpufont/font.hpp @@ -735,8 +735,8 @@ class Font { glActiveTexture(GL_TEXTURE0); #else - glyphBuffer = glGetUniformLocation(program, "glyphs"); - glUniform1i(glyphBuffer, 2); + GLint toast = glGetUniformLocation(program, "glyphs"); + glUniform1i(toast, 2); curveBuffer = glGetUniformLocation(program, "curves"); glUniform1i(curveBuffer, 1); diff --git a/example/src/ofApp.cpp b/example/src/ofApp.cpp index bbdf4b8..812f4f9 100644 --- a/example/src/ofApp.cpp +++ b/example/src/ofApp.cpp @@ -2,6 +2,7 @@ #include "ofAppRunner.h" #include "ofGraphics.h" #include "ofTexture.h" +#include "ofUtils.h" #ifdef TARGET_EMSCRIPTEN #include @@ -76,7 +77,7 @@ is going to be difficult. I don’t know yet where to start. I hope to capture something essential.)DONE"; #ifdef TARGET_EMSCRIPTEN - string shaderDir = "data/ofxGPUFont/shaders/ES3"; + string shaderDir = "data/ofxGPUFont/shaders/DEBUG_ES3"; #else string shaderDir = "data/ofxGPUFont/shaders/GL3"; #endif @@ -118,82 +119,127 @@ start. I hope to capture something essential.)DONE"; << " | Minor(" << ofToString(glMajor) << ")" << endl; + auto & r = ofGetCurrentRenderer(); + cout << "Render type " << r->getType() << endl; + backgroundColor = ofFloatColor::red; + } //-------------------------------------------------------------- void ofApp::update(){ } -bool hasDrawnOnce = false; + //-------------------------------------------------------------- void ofApp::draw(){ - if(!hasDrawnOnce){ - GLuint location; + //ofBackground(backgroundColor); + GLuint location; - int width = ofGetWidth(); - int height = ofGetHeight(); + int width = ofGetWidth(); + int height = ofGetHeight(); - glm::mat4 projection = transform.getProjectionMatrix((float)width / height); - glm::mat4 view = transform.getViewMatrix(); - glm::mat4 model = glm::mat4(1.0f); + glm::mat4 projection = transform.getProjectionMatrix((float)width / height); + glm::mat4 view = transform.getViewMatrix(); + glm::mat4 model = glm::mat4(1.0f); - //{ // Draw background. - //GLuint program = backgroundShader->program; - //glUseProgram(program); - //glBindVertexArray(emptyVAO); - //glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); - //glBindVertexArray(0); - //glUseProgram(0); - //} + //{ // Draw background. + //GLuint program = backgroundShader->program; + //glUseProgram(program); + //glBindVertexArray(emptyVAO); + //glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + //glBindVertexArray(0); + //glUseProgram(0); + //} - ofBackground(ofColor::pink); + // Uses premultiplied-alpha. + glEnable(GL_BLEND); + glBlendEquation(GL_FUNC_ADD); + glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); - // Uses premultiplied-alpha. - glEnable(GL_BLEND); - glBlendEquation(GL_FUNC_ADD); - glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); + int currentProgram; + glGetIntegerv(GL_CURRENT_PROGRAM, ¤tProgram); - int currentProgram; - glGetIntegerv(GL_CURRENT_PROGRAM, ¤tProgram); + if(font){ + GLuint program = fontShader->program; + glUseProgram(program); - if(font){ - GLuint program = fontShader->program; - glUseProgram(program); + font->program = program; + font->drawSetup(); - font->program = program; - font->drawSetup(); + location = glGetUniformLocation(program, "projection"); + glUniformMatrix4fv(location, 1, false, glm::value_ptr(projection)); - location = glGetUniformLocation(program, "projection"); - glUniformMatrix4fv(location, 1, false, glm::value_ptr(projection)); + location = glGetUniformLocation(program, "view"); + glUniformMatrix4fv(location, 1, false, glm::value_ptr(view)); + location = glGetUniformLocation(program, "model"); + glUniformMatrix4fv(location, 1, false, glm::value_ptr(model)); + float z = 0; + location = glGetUniformLocation(program, "z"); + glUniform1f(location, z); - location = glGetUniformLocation(program, "view"); - glUniformMatrix4fv(location, 1, false, glm::value_ptr(view)); - location = glGetUniformLocation(program, "model"); - glUniformMatrix4fv(location, 1, false, glm::value_ptr(model)); - float z = 0; - location = glGetUniformLocation(program, "z"); - glUniform1f(location, z); + location = glGetUniformLocation(program, "color"); + glUniform4f(location, 1.0f, 0.0f, 1.0f, 1.0f); - location = glGetUniformLocation(program, "color"); - glUniform4f(location, 1.0f, 0.0f, 1.0f, 1.0f); + location = glGetUniformLocation(program, "antiAliasingWindowSize"); + glUniform1f(location, (float)antiAliasingWindowSize); + location = glGetUniformLocation(program, "enableSuperSamplingAntiAliasing"); + glUniform1i(location, enableSuperSamplingAntiAliasing); + location = glGetUniformLocation(program, "enableControlPointsVisualization"); + glUniform1i(location, enableControlPointsVisualization); - location = glGetUniformLocation(program, "antiAliasingWindowSize"); - glUniform1f(location, (float)antiAliasingWindowSize); - location = glGetUniformLocation(program, "enableSuperSamplingAntiAliasing"); - glUniform1i(location, enableSuperSamplingAntiAliasing); - location = glGetUniformLocation(program, "enableControlPointsVisualization"); - glUniform1i(location, enableControlPointsVisualization); + debug_font_location = glGetUniformLocation(program, "iChannel0"); + glUniform1i(debug_font_location, 3); - float cx = 0.5f * (bb.minX + bb.maxX); - float cy = 0.5f * (bb.minY + bb.maxY); - font->draw(-cx, -cy, 0, mainText); - glUseProgram(currentProgram); + if(!debug_font.isAllocated()){ + debug_font.setUseTexture(false); + debug_font.load("sdfatlas.png"); + //debug_font.getTexture().getTextureData().textureID = debug_font_location; + //debug_font.getTexture().getTextureData().textureTarget = GL_TEXTURE_2D; + //debug_font.bind(debug_font_location); + //debug_font.update(); + //debug_font.unbind(debug_font_location); + glGenTextures(1, &debug_font_name); + glActiveTexture(GL_TEXTURE3); + glBindTexture(GL_TEXTURE_2D, debug_font_name); + + ofPixels & pixels = debug_font.getPixels(); + glTexImage2D(GL_TEXTURE_2D, + 0, + GL_RGBA, + pixels.getWidth(), + pixels.getHeight(), + 0, + GL_RGBA, + GL_UNSIGNED_BYTE, + pixels.getData()); + glGenerateMipmap(GL_TEXTURE_2D); } + //debug_font.bind(debug_font_location); - glDisable(GL_BLEND); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); - ofDrawBitmapStringHighlight("fps: " + ofToString(ofGetFrameRate()), 20, 20); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, 0); + + float cx = 0.5f * (bb.minX + bb.maxX); + float cy = 0.5f * (bb.minY + bb.maxY); + font->draw(-cx, -cy, 0, mainText); + glUseProgram(currentProgram); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D, 0); } + + glDisable(GL_BLEND); + + ofDrawBitmapStringHighlight("fps: " + ofToString(ofGetFrameRate()), 20, 20); + backgroundColor = ofFloatColor::pink; +} + +void ofApp::exit(){ + glDeleteTextures(1, &debug_font_location); } //-------------------------------------------------------------- diff --git a/example/src/ofApp.h b/example/src/ofApp.h index 1f48270..33c6999 100644 --- a/example/src/ofApp.h +++ b/example/src/ofApp.h @@ -69,6 +69,8 @@ class ofApp : public ofBaseApp { void dragEvent(ofDragInfo dragInfo); void gotMessage(ofMessage msg); + void exit(); + unique_ptr font; FT_Library library; @@ -100,4 +102,9 @@ class ofApp : public ofBaseApp { bool enableControlPointsVisualization = false; bool showHelp = true; + + ofImage debug_font; + GLuint debug_font_location; + GLuint debug_font_name; + ofFloatColor backgroundColor; };