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Diffstat (limited to 'chart2/source/view/main/OpenGLRender.cxx')
| -rw-r--r-- | chart2/source/view/main/OpenGLRender.cxx | 1024 |
1 files changed, 0 insertions, 1024 deletions
diff --git a/chart2/source/view/main/OpenGLRender.cxx b/chart2/source/view/main/OpenGLRender.cxx deleted file mode 100644 index f461bb80f290..000000000000 --- a/chart2/source/view/main/OpenGLRender.cxx +++ /dev/null @@ -1,1024 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/* - * This file is part of the LibreOffice project. - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. - */ - -#include <epoxy/gl.h> -#include <cmath> -#include <vector> -#include "OpenGLRender.hxx" -#include <vcl/graph.hxx> -#include <com/sun/star/awt/XBitmap.hpp> -#include <com/sun/star/beans/XPropertySet.hpp> -#include <com/sun/star/graphic/XGraphic.hpp> -#include <com/sun/star/drawing/CircleKind.hpp> -#include <com/sun/star/drawing/DoubleSequence.hpp> -#include <com/sun/star/drawing/FlagSequence.hpp> -#include <com/sun/star/drawing/FillStyle.hpp> -#include <com/sun/star/drawing/LineStyle.hpp> -#include <com/sun/star/drawing/NormalsKind.hpp> -#include <com/sun/star/drawing/PointSequence.hpp> -#include <com/sun/star/drawing/PolygonKind.hpp> -#include <com/sun/star/drawing/PolyPolygonBezierCoords.hpp> -#include <com/sun/star/drawing/ProjectionMode.hpp> -#include <com/sun/star/drawing/ShadeMode.hpp> -#include <com/sun/star/drawing/TextFitToSizeType.hpp> -#include <com/sun/star/drawing/TextureProjectionMode.hpp> -#include <com/sun/star/text/XText.hpp> -#include <editeng/unoprnms.hxx> -#include <vcl/virdev.hxx> -#include <vcl/dibtools.hxx> -#include <vcl/svapp.hxx> -#include <sal/log.hxx> - -#include <vcl/opengl/OpenGLHelper.hxx> - -#include <CommonConverters.hxx> - -using namespace com::sun::star; - -#define DEBUG_PNG 0 - -#if DEBUG_PNG -#include <vcl/pngwrite.hxx> -#endif - -#define GL_PI 3.14159f - -#define Z_STEP 0.001f - -static GLfloat squareVertices[] = { - -1.0f, -1.0f, -1.0, - 1.0f, -1.0f, -1.0, - 1.0f, 1.0f, -1.0, - -1.0f, 1.0f, -1.0 -}; - -static GLfloat coordReverseVertices[] = { - 0.0f, 1.0f, - 1.0f, 1.0f, - 1.0f, 0.0f, - 0.0f, 0.0f, -}; - -#define CHECK_GL_FRAME_BUFFER_STATUS() \ - GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);\ - if( status != GL_FRAMEBUFFER_COMPLETE ) {\ - SAL_WARN("chart2.opengl", "OpenGL error: " << status );\ - return -1;\ - } - -namespace { - -GLfloat texCoords[] = { - 0.0f, 0.0f, - 1.0f, 0.0f, - 1.0f, 1.0f, - 0.0f, 1.0f -}; - -} - -int OpenGLRender::InitOpenGL() -{ - glEnable(GL_TEXTURE_2D); - glDisable(GL_CULL_FACE); - glCullFace(GL_BACK); - glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); - // Enable depth test - glEnable(GL_DEPTH_TEST); - // Accept fragment if it closer to the camera than the former one - glDepthFunc(GL_LESS); - glEnable(GL_POINT_SMOOTH); - glEnable(GL_LINE_SMOOTH); - glHint(GL_POINT_SMOOTH_HINT, GL_NICEST); - glHint(GL_LINE_SMOOTH_HINT, GL_NICEST); - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - glClearColor (1.0, 1.0, 1.0, 1.0); - glClear(GL_COLOR_BUFFER_BIT); - glClearDepth(1.0f); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - glGenBuffers(1, &m_VertexBuffer); - glGenBuffers(1, &m_ColorBuffer); - - CHECK_GL_ERROR(); - - m_CommonProID = OpenGLHelper::LoadShaders("commonVertexShader", "commonFragmentShader"); - m_MatrixID = glGetUniformLocation(m_CommonProID, "MVP"); - m_2DVertexID = glGetAttribLocation(m_CommonProID, "vPosition"); - m_2DColorID = glGetUniformLocation(m_CommonProID, "vColor"); - CHECK_GL_ERROR(); - -#if DEBUG_POSITIONING - m_DebugProID = OpenGLHelper::LoadShaders("debugVertexShader", "debugFragmentShader"); - m_DebugVertexID = glGetAttribLocation(m_DebugProID, "vPosition"); - CHECK_GL_ERROR(); -#endif - - m_BackgroundProID = OpenGLHelper::LoadShaders("backgroundVertexShader", "backgroundFragmentShader"); - m_BackgroundMatrixID = glGetUniformLocation(m_BackgroundProID, "MVP"); - m_BackgroundVertexID = glGetAttribLocation(m_BackgroundProID, "vPosition"); - m_BackgroundColorID = glGetAttribLocation(m_BackgroundProID, "vColor"); - - CHECK_GL_ERROR(); - - m_SymbolProID = OpenGLHelper::LoadShaders("symbolVertexShader", "symbolFragmentShader"); - m_SymbolVertexID = glGetAttribLocation(m_SymbolProID, "vPosition"); - m_SymbolMatrixID = glGetUniformLocation(m_SymbolProID, "MVP"); - m_SymbolColorID = glGetUniformLocation(m_SymbolProID, "vColor"); - m_SymbolShapeID = glGetUniformLocation(m_SymbolProID, "shape"); - - CHECK_GL_ERROR(); - - m_TextProID = OpenGLHelper::LoadShaders("textVertexShader", "textFragmentShader"); - m_TextMatrixID = glGetUniformLocation(m_TextProID, "MVP"); - m_TextVertexID = glGetAttribLocation(m_TextProID, "vPosition"); - m_TextTexCoordID = glGetAttribLocation(m_TextProID, "texCoord"); - m_TextTexID = glGetUniformLocation(m_TextProID, "TextTex"); - CHECK_GL_ERROR(); - - glGenBuffers(1, &m_RenderVertexBuf); - glBindBuffer(GL_ARRAY_BUFFER, m_RenderVertexBuf); - glBufferData(GL_ARRAY_BUFFER, sizeof(squareVertices), squareVertices, GL_STATIC_DRAW); - glBindBuffer(GL_ARRAY_BUFFER, 0); - - glGenBuffers(1, &m_RenderTexCoordBuf); - glBindBuffer(GL_ARRAY_BUFFER, m_RenderTexCoordBuf); - glBufferData(GL_ARRAY_BUFFER, sizeof(coordReverseVertices), coordReverseVertices, GL_STATIC_DRAW); - glBindBuffer(GL_ARRAY_BUFFER, 0); - - glGenBuffers(1, &m_TextTexCoordBuf); - glBindBuffer(GL_ARRAY_BUFFER, m_TextTexCoordBuf); - glBufferData(GL_ARRAY_BUFFER, sizeof(texCoords), texCoords, GL_STATIC_DRAW); - glBindBuffer(GL_ARRAY_BUFFER, 0); - - glEnable(GL_LIGHTING); - GLfloat const light_direction[] = { 0.0 , 0.0 , 1.0 }; - GLfloat const materialDiffuse[] = { 1.0 , 1.0 , 1.0 , 1.0}; - glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, light_direction); - glMaterialfv(GL_FRONT,GL_DIFFUSE,materialDiffuse); - glEnable(GL_LIGHT0); - glEnable(GL_NORMALIZE); - - return 0; -} - -void OpenGLRender::SetLine2DShapePoint(float x, float y, int listLength) -{ - if (m_Line2DPointList.empty()) - { - m_Line2DPointList.reserve(listLength*3); - } - m_Line2DPointList.push_back(x); - m_Line2DPointList.push_back(y); - m_Line2DPointList.push_back(m_fZStep); - - if (m_Line2DPointList.size() == size_t(listLength * 3)) - { - m_Line2DShapePointList.push_back(m_Line2DPointList); - m_Line2DPointList.clear(); - } -} - -int OpenGLRender::RenderLine2FBO() -{ - CHECK_GL_ERROR(); - glLineWidth(m_fLineWidth); - PosVecf3 const trans = {0.0f, 0.0f, 0.0f}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {1.0f, 1.0f, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - for (auto const& pointList : m_Line2DShapePointList) - { - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - CHECK_GL_ERROR(); - glBufferData(GL_ARRAY_BUFFER, pointList.size() * sizeof(float), &pointList[0], GL_STATIC_DRAW); - CHECK_GL_ERROR(); - // Use our shader - glUseProgram(m_CommonProID); - CHECK_GL_ERROR(); - - glUniform4fv(m_2DColorID, 1, &m_2DColor[0]); - CHECK_GL_ERROR(); - glUniformMatrix4fv(m_MatrixID, 1, GL_FALSE, &m_MVP[0][0]); - //CHECK_GL_ERROR(); - - // 1rst attribute buffer : vertices - CHECK_GL_ERROR(); - glVertexAttribPointer( - m_2DVertexID, - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - glEnableVertexAttribArray(m_2DVertexID); - glDrawArrays(GL_LINE_STRIP, 0, pointList.size()/3); // 12*3 indices starting at 0 -> 12 triangles - CHECK_GL_ERROR(); - glUseProgram(0); - glDisableVertexAttribArray(m_2DVertexID); - CHECK_GL_ERROR(); - } - m_Line2DShapePointList.clear(); - CHECK_GL_ERROR(); - CHECK_GL_FRAME_BUFFER_STATUS(); - m_fZStep += Z_STEP; - return 0; -} - -#if DEBUG_POSITIONING -void OpenGLRender::renderDebug() -{ - CHECK_GL_ERROR(); - - GLfloat vertices[4][3] = { - {-0.9, -0.9, 0 }, - {-0.6, -0.2, 0 }, - {0.3, 0.3, 0 }, - {0.9, 0.9, 0 } }; - - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - CHECK_GL_ERROR(); - glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); - CHECK_GL_ERROR(); - glUseProgram(m_DebugProID); - CHECK_GL_ERROR(); - glVertexAttribPointer(m_DebugVertexID, 3, GL_FLOAT, GL_FALSE, 0, (void*)0); - CHECK_GL_ERROR(); - glEnableVertexAttribArray(m_DebugVertexID); - - glDrawArrays(GL_LINE_STRIP, 0, 3); - CHECK_GL_ERROR(); - glDisableVertexAttribArray(m_DebugVertexID); - - CHECK_GL_ERROR(); -} -#endif - -void OpenGLRender::prepareToRender() -{ - glViewport(0, 0, m_iWidth, m_iHeight); - - // Clear the screen - glClearDepth(1.0f); - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - m_fZStep = 0; -} - -void OpenGLRender::MoveModelf(const PosVecf3& trans, const PosVecf3& angle, const PosVecf3& scale) -{ - glm::mat4 aTranslationMatrix = glm::translate(glm::vec3(trans.x, trans.y, trans.z)); - glm::mat4 aScaleMatrix = glm::scale(glm::vec3(scale.x, scale.y, scale.z)); - glm::mat4 aRotationMatrix = glm::eulerAngleYXZ(angle.y, angle.x, angle.z); - m_Model = aTranslationMatrix * aRotationMatrix * aScaleMatrix; -} - -void OpenGLRender::Release() -{ - glDeleteBuffers(1, &m_VertexBuffer); - glDeleteBuffers(1, &m_ColorBuffer); - glDeleteBuffers(1, &m_TextTexCoordBuf); - glDeleteProgram(m_CommonProID); - glDeleteProgram(m_TextProID); - glDeleteProgram(m_BackgroundProID); - glDeleteProgram(m_SymbolProID); -} - -OpenGLRender::OpenGLRender() - : m_iWidth(1600) - , m_iHeight(900) - , m_Model(glm::mat4(1.0f)) - , m_VertexBuffer(0) - , m_ColorBuffer(0) - , m_MatrixID(0) - , m_RenderVertexBuf(0) - , m_RenderTexCoordBuf(0) - , m_fLineWidth(0.001f) - , m_2DColor(glm::vec4(1.0, 0.0, 0.0, 1.0)) - , m_CommonProID(0) - , m_2DVertexID(0) - , m_2DColorID(0) - , m_fZStep(0) - , m_TextProID(0) - , m_TextMatrixID(0) - , m_TextVertexID(0) - , m_TextTexCoordID(0) - , m_TextTexCoordBuf(0) - , m_TextTexID(0) - , m_BackgroundProID(0) - , m_BackgroundMatrixID(0) - , m_BackgroundVertexID(0) - , m_BackgroundColorID(0) - , m_SymbolProID(0) - , m_SymbolVertexID(0) - , m_SymbolMatrixID(0) - , m_SymbolColorID(0) - , m_SymbolShapeID(0) -{ - //TODO: moggi: use STL - for (float & i : m_BackgroundColor) - { - i = 1.0; - } -} - -OpenGLRender::~OpenGLRender() -{ - Release(); -} - -// TODO: moggi: that screws up FBO if called after buffers have been created!!!! -void OpenGLRender::SetSize(int width, int height) -{ - m_iWidth = width; - m_iHeight = height; -} - -void OpenGLRender::SetSizePixel(int width, int height) -{ - m_Projection = glm::ortho(0.f, float(m_iWidth), 0.f, float(m_iHeight), -4.f, 3.f); - m_Projection = m_Projection * glm::scale(glm::vec3(static_cast<float>(width) / m_iWidth, -static_cast<float>(height) / m_iHeight, 1.0f)); - - m_View = glm::lookAt(glm::vec3(0,m_iHeight,1), - glm::vec3(0,m_iHeight,0), - glm::vec3(0,1,0) ); -} - -void OpenGLRender::SetLine2DColor(sal_uInt8 r, sal_uInt8 g, sal_uInt8 b, sal_uInt8 nAlpha) -{ - m_2DColor = glm::vec4(static_cast<float>(r) / 255.0f, static_cast<float>(g) / 255.0f, static_cast<float>(b) / 255.0f, nAlpha/255.f); -} - -void OpenGLRender::SetLine2DWidth(int width) -{ - m_fLineWidth = std::max(static_cast<float>(width), 0.001f); -} - -void OpenGLRender::SetColor(sal_uInt32 color, sal_uInt8 nAlpha) -{ - sal_uInt8 r = (color & 0x00FF0000) >> 16; - sal_uInt8 g = (color & 0x0000FF00) >> 8; - sal_uInt8 b = (color & 0x000000FF); - m_2DColor = glm::vec4(static_cast<float>(r) / 255.0f, static_cast<float>(g) / 255.0f, static_cast<float>(b) / 255.0f, nAlpha/ 255.f); -} - -int OpenGLRender::Create2DCircle(int detail) -{ - float angle; - if (detail <= 0) - { - return -1; - } - m_Bubble2DCircle.clear(); - m_Bubble2DCircle.reserve(2 * (detail + 3)); - m_Bubble2DCircle.push_back(0); - m_Bubble2DCircle.push_back(0); - for(angle = 2.0f * GL_PI; angle > -(2.0f * GL_PI / detail); angle -= (2.0f * GL_PI / detail)) - { - m_Bubble2DCircle.push_back(std::sin(angle)); - m_Bubble2DCircle.push_back(std::cos(angle)); - } - return 0; -} - -void OpenGLRender::Bubble2DShapePoint(float x, float y, float directionX, float directionY) -{ - //check whether to create the circle data - if (m_Bubble2DCircle.empty()) - { - Create2DCircle(100); - } - - Bubble2DPointList aBubble2DPointList; - aBubble2DPointList.xScale = directionX; - aBubble2DPointList.yScale = directionY; - aBubble2DPointList.x = x + aBubble2DPointList.xScale / 2; - aBubble2DPointList.y = y + aBubble2DPointList.yScale / 2; - - m_Bubble2DShapePointList.push_back(aBubble2DPointList); -} - -int OpenGLRender::RenderBubble2FBO() -{ - CHECK_GL_ERROR(); - glm::vec4 edgeColor = glm::vec4(0.0, 0.0, 0.0, 1.0); - for (auto const& pointList : m_Bubble2DShapePointList) - { - //move the circle to the pos, and scale using the xScale and Y scale - PosVecf3 const trans = {pointList.x, pointList.y, m_fZStep}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {pointList.xScale / 2, pointList.yScale / 2 , 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - //render to fbo - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - if (m_Bubble2DCircle.empty()) - { - Create2DCircle(100); - } - glBufferData(GL_ARRAY_BUFFER, m_Bubble2DCircle.size() * sizeof(GLfloat), &m_Bubble2DCircle[0], GL_STATIC_DRAW); - - glUseProgram(m_CommonProID); - - glUniform4fv(m_2DColorID, 1, &m_2DColor[0]); - - glUniformMatrix4fv(m_MatrixID, 1, GL_FALSE, &m_MVP[0][0]); - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_2DVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_2DVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 2, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - glDrawArrays(GL_TRIANGLE_FAN, 0, m_Bubble2DCircle.size() / 2); - glDisableVertexAttribArray(m_2DVertexID); - glUseProgram(0); - glBindBuffer(GL_ARRAY_BUFFER, 0); - //add black edge - glLineWidth(3.0); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glBufferData(GL_ARRAY_BUFFER, m_Bubble2DCircle.size() * sizeof(GLfloat) -2 , &m_Bubble2DCircle[2], GL_STATIC_DRAW); - glUseProgram(m_CommonProID); - glUniform4fv(m_2DColorID, 1, &edgeColor[0]); - glUniformMatrix4fv(m_MatrixID, 1, GL_FALSE, &m_MVP[0][0]); - glEnableVertexAttribArray(m_2DVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_2DVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 2, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - glDrawArrays(GL_LINE_STRIP, 0, (m_Bubble2DCircle.size() * sizeof(GLfloat) -2) / sizeof(float) / 2); - glDisableVertexAttribArray(m_2DVertexID); - glUseProgram(0); - glBindBuffer(GL_ARRAY_BUFFER, 0); - glLineWidth(m_fLineWidth); - } - m_Bubble2DShapePointList.clear(); - //if use MSAA, we should copy the data to the FBO texture - GLenum fbResult = glCheckFramebufferStatus(GL_FRAMEBUFFER); - if( fbResult != GL_FRAMEBUFFER_COMPLETE ) - { - SAL_WARN("chart2.opengl", "error"); - return -1; - } - CHECK_GL_ERROR(); - m_fZStep += Z_STEP; - return 0; -} - -void OpenGLRender::RectangleShapePoint(float x, float y, float directionX, float directionY) -{ - RectanglePointList aRectangle; - - aRectangle.points[0] = x; - aRectangle.points[1] = y; - aRectangle.points[2] = m_fZStep; - aRectangle.points[3] = x + directionX; - aRectangle.points[4] = y; - aRectangle.points[5] = m_fZStep; - aRectangle.points[6] = x + directionX; - aRectangle.points[7] = y + directionY; - aRectangle.points[8] = m_fZStep; - aRectangle.points[9] = x; - aRectangle.points[10] = y + directionY; - aRectangle.points[11] = m_fZStep; - - m_RectangleShapePointList.push_back(aRectangle); -} - -void OpenGLRender::RenderRectangleShape(bool bBorder, bool bFill) -{ - for (auto const& pointList : m_RectangleShapePointList) - { - //move the circle to the pos, and scale using the xScale and Y scale - { - PosVecf3 const trans = {0, 0, 0}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {1, 1, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - } - - //render to fbo - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glBufferData(GL_ARRAY_BUFFER, sizeof(pointList.points), pointList.points, GL_STATIC_DRAW); - - glBindBuffer(GL_ARRAY_BUFFER, m_ColorBuffer); - glBufferData(GL_ARRAY_BUFFER, sizeof(m_BackgroundColor), m_BackgroundColor, GL_STATIC_DRAW); - glUseProgram(m_BackgroundProID); - - glUniformMatrix4fv(m_BackgroundMatrixID, 1, GL_FALSE, &m_MVP[0][0]); - if(bFill) - { - glEnableVertexAttribArray(m_BackgroundVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_BackgroundVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - - // 2nd attribute buffer : color - glEnableVertexAttribArray(m_BackgroundColorID); - glBindBuffer(GL_ARRAY_BUFFER, m_ColorBuffer); - glVertexAttribPointer( - m_BackgroundColorID, // attribute. No particular reason for 0, but must match the layout in the shader. - 4, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - //TODO: moggi: get rid of GL_QUADS - glDrawArrays(GL_QUADS, 0, 4); - glDisableVertexAttribArray(m_BackgroundVertexID); - glDisableVertexAttribArray(m_BackgroundColorID); - } - if(bBorder) - { - if(bFill) - { - PosVecf3 const trans = {0.0, 0.0, Z_STEP }; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {1, 1, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - - m_fZStep += Z_STEP; - glUniformMatrix4fv(m_BackgroundMatrixID, 1, GL_FALSE, &m_MVP[0][0]); - } - SetBackGroundColor(COL_BLACK, COL_BLACK, css::drawing::FillStyle_SOLID); - - glBindBuffer(GL_ARRAY_BUFFER, m_ColorBuffer); - glBufferData(GL_ARRAY_BUFFER, sizeof(m_BackgroundColor), m_BackgroundColor, GL_STATIC_DRAW); - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_BackgroundVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_BackgroundVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - - // 2nd attribute buffer : color - glEnableVertexAttribArray(m_BackgroundColorID); - glBindBuffer(GL_ARRAY_BUFFER, m_ColorBuffer); - glVertexAttribPointer( - m_BackgroundColorID, // attribute. No particular reason for 0, but must match the layout in the shader. - 4, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - glDrawArrays(GL_LINE_LOOP, 0, 4); - glDisableVertexAttribArray(m_BackgroundVertexID); - glDisableVertexAttribArray(m_BackgroundColorID); - } - glDisableVertexAttribArray(m_BackgroundVertexID); - glDisableVertexAttribArray(m_BackgroundColorID); - glUseProgram(0); - glBindBuffer(GL_ARRAY_BUFFER, 0); - } - m_RectangleShapePointList.clear(); - CHECK_GL_ERROR(); - - m_fZStep += Z_STEP; -} - - -int OpenGLRender::CreateTextTexture(const BitmapEx& rBitmapEx, const awt::Size& aSize, long rotation, - const drawing::HomogenMatrix3& rTrans) -{ -#if DEBUG_PNG // debug PNG writing - static int nIdx = 0; - OUString aName = OUString( "file:///home/moggi/Documents/work/text" ) + OUString::number( nIdx++ ) + ".png"; - try { - vcl::PNGWriter aWriter( rBitmapEx ); - SvFileStream sOutput( aName, StreamMode::WRITE ); - aWriter.Write( sOutput ); - sOutput.Close(); - } catch (...) { - SAL_WARN("chart2.opengl", "Error writing png to " << aName); - } -#endif - - boost::shared_array<sal_uInt8> bitmapBuf(new sal_uInt8[4 * rBitmapEx.GetSizePixel().Width() * rBitmapEx.GetSizePixel().Height()]); - - OpenGLHelper::ConvertBitmapExToRGBATextureBuffer(rBitmapEx, bitmapBuf.get()); - - CreateTextTexture(bitmapBuf, rBitmapEx.GetSizePixel(), - aSize, rotation, rTrans); - return 0; -} - -void OpenGLRender::CreateTextTexture(const boost::shared_array<sal_uInt8> &rPixels, - const ::Size &aPixelSize, - const awt::Size& aSize, - long rotation, - const drawing::HomogenMatrix3& rTrans) -{ - long bmpWidth = aPixelSize.Width(); - long bmpHeight = aPixelSize.Height(); - - TextInfo aTextInfo; - aTextInfo.rotation = -static_cast<double>(rotation) / 360.0 * 2* GL_PI; - aTextInfo.vertex[0] = -aSize.Width / 2; - aTextInfo.vertex[1] = -aSize.Height / 2; - aTextInfo.vertex[2] = m_fZStep; - - aTextInfo.vertex[3] = aSize.Width / 2; - aTextInfo.vertex[4] = -aSize.Height / 2; - aTextInfo.vertex[5] = m_fZStep; - - aTextInfo.vertex[6] = aSize.Width / 2; - aTextInfo.vertex[7] = aSize.Height / 2; - aTextInfo.vertex[8] = m_fZStep; - - aTextInfo.vertex[9] = -aSize.Width / 2; - aTextInfo.vertex[10] = aSize.Height / 2; - aTextInfo.vertex[11] = m_fZStep; - aTextInfo.nDx = (rTrans.Line1.Column3 + aSize.Width / 2 ) - bmpWidth/2; - aTextInfo.nDy = (rTrans.Line2.Column3 + aSize.Height / 2 ) - bmpHeight/2; - - CHECK_GL_ERROR(); - glGenTextures(1, &aTextInfo.texture); - CHECK_GL_ERROR(); - glBindTexture(GL_TEXTURE_2D, aTextInfo.texture); - CHECK_GL_ERROR(); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP); - CHECK_GL_ERROR(); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP); - CHECK_GL_ERROR(); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - CHECK_GL_ERROR(); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - CHECK_GL_ERROR(); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bmpWidth, bmpHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, rPixels.get()); - CHECK_GL_ERROR(); - glBindTexture(GL_TEXTURE_2D, 0); - CHECK_GL_ERROR(); - m_TextInfoVector.push_back(aTextInfo); -} - -void OpenGLRender::RenderTextShape() -{ - CHECK_GL_ERROR(); - for (auto const& textInfo : m_TextInfoVector) - { - PosVecf3 const trans = { textInfo.nDx, textInfo.nDy, 0}; - PosVecf3 const angle = {0.0f, 0.0f, float(textInfo.rotation)}; - PosVecf3 const scale = {1.0, 1.0, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - CHECK_GL_ERROR(); - glBufferData(GL_ARRAY_BUFFER, sizeof(textInfo.vertex), textInfo.vertex, GL_STATIC_DRAW); - CHECK_GL_ERROR(); - glUseProgram(m_TextProID); - - CHECK_GL_ERROR(); - glUniformMatrix4fv(m_TextMatrixID, 1, GL_FALSE, &m_MVP[0][0]); - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_TextVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_TextVertexID, - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - //tex coord - CHECK_GL_ERROR(); - glEnableVertexAttribArray(m_TextTexCoordID); - glBindBuffer(GL_ARRAY_BUFFER, m_TextTexCoordBuf); - glVertexAttribPointer( - m_TextTexCoordID, - 2, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - //texture - CHECK_GL_ERROR(); - glBindTexture(GL_TEXTURE_2D, textInfo.texture); - CHECK_GL_ERROR(); - glUniform1i(m_TextTexID, 0); - CHECK_GL_ERROR(); - //TODO: moggi: get rid fo GL_QUADS - glDrawArrays(GL_QUADS, 0, 4); - CHECK_GL_ERROR(); - glDisableVertexAttribArray(m_TextTexCoordID); - CHECK_GL_ERROR(); - glDisableVertexAttribArray(m_TextVertexID); - CHECK_GL_ERROR(); - glBindTexture(GL_TEXTURE_2D, 0); - glUseProgram(0); - glDeleteTextures(1, &textInfo.texture); - CHECK_GL_ERROR(); - } - m_TextInfoVector.clear(); - CHECK_GL_ERROR(); - m_fZStep += Z_STEP; -} - -void OpenGLRender::SetArea2DShapePoint(float x, float y, int listLength) -{ - if (m_Area2DPointList.empty()) - { - m_Area2DPointList.reserve(listLength); - } - m_Area2DPointList.push_back(x); - m_Area2DPointList.push_back(y); - m_Area2DPointList.push_back(m_fZStep); - - if (m_Area2DPointList.size() == size_t(listLength * 3)) - { - m_Area2DShapePointList.push_back(m_Area2DPointList); - m_Area2DPointList.clear(); - } -} - -namespace { - -// only 2D -bool checkCCW(const PointList& rPoints) -{ - if(rPoints.size() < 3) - return true; - - GLfloat sum = 0; - for(size_t i = 1; i < rPoints.size()/3; i += 3) - { - GLfloat x1 = rPoints[(i-1)*3]; - GLfloat x2 = rPoints[i*3]; - GLfloat y1 = rPoints[(i-1)*3 + 1]; - GLfloat y2 = rPoints[i*3 + 1]; - GLfloat prod = (x2-x1)*(y2+y1); - - sum += prod; - } - - return (sum <= 0); -} - -} - -void OpenGLRender::RenderArea2DShape() -{ - CHECK_GL_ERROR(); - - glDisable(GL_MULTISAMPLE); - PosVecf3 const trans = {0.0f, 0.0f, 0.0f}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {1.0f, 1.0f, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - for (auto const& pointList : m_Area2DShapePointList) - { - bool bIsCCW = checkCCW(pointList); // is it counter clockwise (CCW) or clockwise (CW) - if(!bIsCCW) - glFrontFace(GL_CW); - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glBufferData(GL_ARRAY_BUFFER, pointList.size() * sizeof(float), &pointList[0], GL_STATIC_DRAW); - // Use our shader - glUseProgram(m_CommonProID); - - glUniform4fv(m_2DColorID, 1, &m_2DColor[0]); - - glUniformMatrix4fv(m_MatrixID, 1, GL_FALSE, &m_MVP[0][0]); - - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_2DVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_2DVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - // TODO: moggi: remove deprecated GL_POLYGON - glDrawArrays(GL_POLYGON, 0, pointList.size() / 3); // 12*3 indices starting at 0 -> 12 triangles - glDisableVertexAttribArray(m_2DVertexID); - glUseProgram(0); - if(!bIsCCW) - glFrontFace(GL_CCW); - } - m_Area2DShapePointList.clear(); - glEnable(GL_MULTISAMPLE); - m_fZStep += Z_STEP; - - CHECK_GL_ERROR(); -} - -void OpenGLRender::SetBackGroundColor(::Color color1, ::Color color2, css::drawing::FillStyle fillStyle) -{ - sal_uInt8 r = color1.GetRed(); - sal_uInt8 g = color1.GetGreen(); - sal_uInt8 b = color1.GetBlue(); - - m_BackgroundColor[0] = static_cast<float>(r) / 255.0f; - m_BackgroundColor[1] = static_cast<float>(g) / 255.0f; - m_BackgroundColor[2] = static_cast<float>(b) / 255.0f; - m_BackgroundColor[3] = fillStyle != css::drawing::FillStyle_NONE ? 1.0 : 0.0; - - m_BackgroundColor[4] = static_cast<float>(r) / 255.0f; - m_BackgroundColor[5] = static_cast<float>(g) / 255.0f; - m_BackgroundColor[6] = static_cast<float>(b) / 255.0f; - m_BackgroundColor[7] = fillStyle != css::drawing::FillStyle_NONE ? 1.0 : 0.0; - - r = color2.GetRed(); - g = color2.GetGreen(); - b = color2.GetBlue(); - - m_BackgroundColor[8] = static_cast<float>(r) / 255.0f; - m_BackgroundColor[9] = static_cast<float>(g) / 255.0f; - m_BackgroundColor[10] = static_cast<float>(b) / 255.0f; - m_BackgroundColor[11] = fillStyle != css::drawing::FillStyle_NONE ? 1.0 : 0.0; - - m_BackgroundColor[12] = static_cast<float>(r) / 255.0f; - m_BackgroundColor[13] = static_cast<float>(g) / 255.0f; - m_BackgroundColor[14] = static_cast<float>(b) / 255.0f; - m_BackgroundColor[15] = fillStyle != css::drawing::FillStyle_NONE ? 1.0 : 0.0; - SAL_INFO("chart2.opengl", "color1 = " << sal_uInt32(color1) << ", color2 = " << sal_uInt32(color2)); - -} - -void OpenGLRender::SetChartTransparencyGradient(long transparencyGradient) -{ - if (transparencyGradient == 1) - { - m_BackgroundColor[11] = 0.0; - m_BackgroundColor[15] = 0.0; - } -} - -void OpenGLRender::GeneratePieSegment2D(double fInnerRadius, double fOutterRadius, double nAngleStart, double nAngleWidth) -{ - double nAngleStep = 1; - PointList aPointList; - // TODO: moggi: GL_TRIANGLE_FAN seems not to work - const bool bInnerRadiusNotZero = true; //!rtl::math::approxEqual(0.0, fInnerRadius); - size_t nVectorSize = 3*(nAngleWidth/nAngleStep); - if(bInnerRadiusNotZero) - nVectorSize *= 2; - - nAngleStart += 90; - aPointList.reserve(nVectorSize); - // if inner radius = 0 generate a normal pie segment (triangle fan) - // if inner radius != 0 generate a pie segment - inner pie (triangle strip) - if(!bInnerRadiusNotZero) - { - aPointList.push_back(0); - aPointList.push_back(0); - aPointList.push_back(m_fZStep); - } - for(double nAngle = nAngleStart; nAngle <= nAngleStart + nAngleWidth; nAngle += nAngleStep) - { - float xVal = sin(nAngle/360*2*GL_PI); - float yVal = cos(nAngle/360*2*GL_PI); - aPointList.push_back(fOutterRadius * xVal); - aPointList.push_back(fOutterRadius * yVal); - aPointList.push_back(m_fZStep); - - if(bInnerRadiusNotZero) - { - aPointList.push_back(fInnerRadius * xVal); - aPointList.push_back(fInnerRadius * yVal); - aPointList.push_back(m_fZStep); - } - } - - m_PieSegment2DShapePointList.push_back(aPointList); -} - -void OpenGLRender::RenderPieSegment2DShape(float fSize, float fPosX, float fPosY) -{ - int listNum = m_PieSegment2DShapePointList.size(); - PosVecf3 const trans = {fPosX, fPosY, 0.0f}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {fSize, fSize, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - - for (int i = 0; i < listNum; i++) - { - PointList &pointList = m_PieSegment2DShapePointList.back(); - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glBufferData(GL_ARRAY_BUFFER, pointList.size() * sizeof(float), &pointList[0] , GL_STATIC_DRAW); - // Use our shader - glUseProgram(m_CommonProID); - - glUniform4fv(m_2DColorID, 1, &m_2DColor[0]); - - glUniformMatrix4fv(m_MatrixID, 1, GL_FALSE, &m_MVP[0][0]); - - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_2DVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_2DVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - glDrawArrays(GL_TRIANGLE_STRIP, 0, pointList.size() / 3); // 12*3 indices starting at 0 -> 12 triangles - glDisableVertexAttribArray(m_2DVertexID); - glUseProgram(0); - m_PieSegment2DShapePointList.pop_back(); - CHECK_GL_ERROR(); - - } - m_fZStep += Z_STEP; - - CHECK_GL_ERROR(); -} - -void OpenGLRender::RenderSymbol2DShape(float x, float y, sal_Int32 nSymbol) -{ - CHECK_GL_ERROR(); - - glPointSize(20.f); - CHECK_GL_ERROR(); - PosVecf3 const trans = {0.0, 0.0, 0.0}; - PosVecf3 const angle = {0.0f, 0.0f, 0.0f}; - PosVecf3 const scale = {1.0, 1.0, 1.0f}; - MoveModelf(trans, angle, scale); - m_MVP = m_Projection * m_View * m_Model; - - float aPos[3] = { x, y, m_fZStep }; - //fill vertex buffer - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - CHECK_GL_ERROR(); - glBufferData(GL_ARRAY_BUFFER, 3 * sizeof(float), aPos, GL_STATIC_DRAW); - CHECK_GL_ERROR(); - - // Use our shader - glUseProgram(m_SymbolProID); - CHECK_GL_ERROR(); - - glUniform4fv(m_SymbolColorID, 1, &m_2DColor[0]); - glUniform1i(m_SymbolShapeID, nSymbol); - CHECK_GL_ERROR(); - - glUniformMatrix4fv(m_SymbolMatrixID, 1, GL_FALSE, &m_MVP[0][0]); - - CHECK_GL_ERROR(); - // 1rst attribute buffer : vertices - glEnableVertexAttribArray(m_SymbolVertexID); - glBindBuffer(GL_ARRAY_BUFFER, m_VertexBuffer); - glVertexAttribPointer( - m_SymbolVertexID, // attribute. No particular reason for 0, but must match the layout in the shader. - 3, // size - GL_FLOAT, // type - GL_FALSE, // normalized? - 0, // stride - nullptr // array buffer offset - ); - - glDrawArrays(GL_POINTS, 0, 1); - - glDisableVertexAttribArray(m_SymbolVertexID); - CHECK_GL_ERROR(); - glUseProgram(0); - m_fZStep += Z_STEP; - - CHECK_GL_ERROR(); -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |