More changes to painter

src/framework/graphics/ogl/painterogl.cpp

@@ -0,0 +1,317 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "painterogl.h"
+#include <framework/graphics/graphics.h>
+#include <framework/platform/platformwindow.h>
+
+PainterOGL::PainterOGL()
+{
+    m_glTextureId = 0;
+    m_oldStateIndex = 0;
+    m_color = Color::white;
+    m_opacity = 1.0f;
+    m_compositionMode = CompositionMode_Normal;
+    m_blendEquation = BlendEquation_Add;
+    m_shaderProgram = nullptr;
+    m_texture = nullptr;
+    m_alphaWriting = false;
+    setResolution(g_window.getSize());
+}
+
+void PainterOGL::resetState()
+{
+    resetColor();
+    resetOpacity();
+    resetCompositionMode();
+    resetBlendEquation();
+    resetClipRect();
+    resetShaderProgram();
+    resetTexture();
+    resetAlphaWriting();
+    resetTransformMatrix();
+}
+
+void PainterOGL::refreshState()
+{
+    updateGlViewport();
+    updateGlCompositionMode();
+    updateGlBlendEquation();
+    updateGlClipRect();
+    updateGlTexture();
+    updateGlAlphaWriting();
+}
+
+void PainterOGL::saveState()
+{
+    assert(m_oldStateIndex<10);
+    m_olderStates[m_oldStateIndex].resolution = m_resolution;
+    m_olderStates[m_oldStateIndex].transformMatrix = m_transformMatrix;
+    m_olderStates[m_oldStateIndex].projectionMatrix = m_projectionMatrix;
+    m_olderStates[m_oldStateIndex].textureMatrix = m_textureMatrix;
+    m_olderStates[m_oldStateIndex].color = m_color;
+    m_olderStates[m_oldStateIndex].opacity = m_opacity;
+    m_olderStates[m_oldStateIndex].compositionMode = m_compositionMode;
+    m_olderStates[m_oldStateIndex].blendEquation = m_blendEquation;
+    m_olderStates[m_oldStateIndex].clipRect = m_clipRect;
+    m_olderStates[m_oldStateIndex].shaderProgram = m_shaderProgram;
+    m_olderStates[m_oldStateIndex].texture = m_texture;
+    m_olderStates[m_oldStateIndex].alphaWriting = m_alphaWriting;
+    m_oldStateIndex++;
+}
+
+void PainterOGL::saveAndResetState()
+{
+    saveState();
+    resetState();
+}
+
+void PainterOGL::restoreSavedState()
+{
+    m_oldStateIndex--;
+    setResolution(m_olderStates[m_oldStateIndex].resolution);
+    setTransformMatrix(m_olderStates[m_oldStateIndex].transformMatrix);
+    setProjectionMatrix(m_olderStates[m_oldStateIndex].projectionMatrix);
+    setTextureMatrix(m_olderStates[m_oldStateIndex].textureMatrix);
+    setColor(m_olderStates[m_oldStateIndex].color);
+    setOpacity(m_olderStates[m_oldStateIndex].opacity);
+    setCompositionMode(m_olderStates[m_oldStateIndex].compositionMode);
+    setBlendEquation(m_olderStates[m_oldStateIndex].blendEquation);
+    setClipRect(m_olderStates[m_oldStateIndex].clipRect);
+    setShaderProgram(m_olderStates[m_oldStateIndex].shaderProgram);
+    setTexture(m_olderStates[m_oldStateIndex].texture);
+    setAlphaWriting(m_olderStates[m_oldStateIndex].alphaWriting);
+}
+
+void PainterOGL::clear(const Color& color)
+{
+    glClearColor(color.rF(), color.gF(), color.bF(), color.aF());
+    glClear(GL_COLOR_BUFFER_BIT);
+}
+
+void PainterOGL::clearRect(const Color& color, const Rect& rect)
+{
+    Rect oldClipRect = m_clipRect;
+    setClipRect(rect);
+    glClearColor(color.rF(), color.gF(), color.bF(), color.aF());
+    glClear(GL_COLOR_BUFFER_BIT);
+    setClipRect(oldClipRect);
+}
+
+void PainterOGL::setCompositionMode(Painter::CompositionMode compositionMode)
+{
+    if(m_compositionMode == compositionMode)
+        return;
+    m_compositionMode = compositionMode;
+    updateGlCompositionMode();
+}
+
+void PainterOGL::setBlendEquation(Painter::BlendEquation blendEquation)
+{
+    if(m_blendEquation == blendEquation)
+        return;
+    m_blendEquation = blendEquation;
+    updateGlBlendEquation();
+}
+
+void PainterOGL::setClipRect(const Rect& clipRect)
+{
+    if(m_clipRect == clipRect)
+        return;
+    m_clipRect = clipRect;
+    updateGlClipRect();
+}
+
+void PainterOGL::setTexture(Texture* texture)
+{
+    if(m_texture == texture)
+        return;
+
+    m_texture = texture;
+
+    uint glTextureId;
+    if(texture) {
+        setTextureMatrix(texture->getTransformMatrix());
+        glTextureId = texture->getId();
+    } else
+        glTextureId = 0;
+
+    if(m_glTextureId != glTextureId) {
+        m_glTextureId = glTextureId;
+        updateGlTexture();
+    }
+}
+
+void PainterOGL::setAlphaWriting(bool enable)
+{
+    if(m_alphaWriting == enable)
+        return;
+
+    m_alphaWriting = enable;
+    updateGlAlphaWriting();
+}
+
+void PainterOGL::setResolution(const Size& resolution)
+{
+    // The projection matrix converts from Painter's coordinate system to GL's coordinate system
+    //    * GL's viewport is 2x2, Painter's is width x height
+    //    * GL has +y -> -y going from bottom -> top, Painter is the other way round
+    //    * GL has [0,0] in the center, Painter has it in the top-left
+    //
+    // This results in the Projection matrix below.
+    //
+    //                                    Projection Matrix
+    //   Painter Coord     ------------------------------------------------        GL Coord
+    //   -------------     | 2.0 / width  |      0.0      |      0.0      |     ---------------
+    //   |  x  y  1  |  *  |     0.0      | -2.0 / height |      0.0      |  =  |  x'  y'  1  |
+    //   -------------     |    -1.0      |      1.0      |      1.0      |     ---------------
+
+    Matrix3 projectionMatrix = { 2.0f/resolution.width(),  0.0f,                      0.0f,
+                                 0.0f,                    -2.0f/resolution.height(),  0.0f,
+                                -1.0f,                     1.0f,                      1.0f };
+
+    m_resolution = resolution;
+
+    setProjectionMatrix(projectionMatrix);
+    if(g_painter == this)
+        updateGlViewport();
+}
+
+void PainterOGL::scale(float x, float y)
+{
+    Matrix3 scaleMatrix = {
+           x,  0.0f,  0.0f,
+        0.0f,     y,  0.0f,
+        0.0f,  0.0f,  1.0f
+    };
+
+    setTransformMatrix(m_transformMatrix * scaleMatrix.transposed());
+}
+
+void PainterOGL::translate(float x, float y)
+{
+    Matrix3 translateMatrix = {
+        1.0f,  0.0f,     x,
+        0.0f,  1.0f,     y,
+        0.0f,  0.0f,  1.0f
+    };
+
+    setTransformMatrix(m_transformMatrix * translateMatrix.transposed());
+}
+
+void PainterOGL::rotate(float angle)
+{
+    Matrix3 rotationMatrix = {
+        std::cos(angle), -std::sin(angle),  0.0f,
+        std::sin(angle),  std::cos(angle),  0.0f,
+                   0.0f,             0.0f,  1.0f
+    };
+
+    setTransformMatrix(m_transformMatrix * rotationMatrix.transposed());
+}
+
+void PainterOGL::rotate(float x, float y, float angle)
+{
+    translate(-x, -y);
+    rotate(angle);
+    translate(x, y);
+}
+
+void PainterOGL::pushTransformMatrix()
+{
+    m_transformMatrixStack.push_back(m_transformMatrix);
+    assert(m_transformMatrixStack.size() < 100);
+}
+
+void PainterOGL::popTransformMatrix()
+{
+    assert(m_transformMatrixStack.size() > 0);
+    setTransformMatrix(m_transformMatrixStack.back());
+    m_transformMatrixStack.pop_back();
+}
+
+void PainterOGL::updateGlTexture()
+{
+    if(m_glTextureId != 0)
+        glBindTexture(GL_TEXTURE_2D, m_glTextureId);
+}
+
+void PainterOGL::updateGlCompositionMode()
+{
+    switch(m_compositionMode) {
+        case CompositionMode_Normal:
+            if(g_graphics.canUseBlendFuncSeparate())
+                glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE);
+            else
+                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case CompositionMode_Multiply:
+            glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA);
+            break;
+        case CompositionMode_Add:
+            glBlendFunc(GL_ONE, GL_ONE);
+            break;
+        case CompositionMode_Replace:
+            glBlendFunc(GL_ONE, GL_ZERO);
+            break;
+        case CompositionMode_DestBlending:
+            glBlendFunc(GL_ONE_MINUS_DST_ALPHA, GL_DST_ALPHA);
+            break;
+        case CompositionMode_Light:
+            glBlendFunc(GL_ZERO, GL_SRC_COLOR);
+            break;
+    }
+}
+
+void PainterOGL::updateGlBlendEquation()
+{
+    if(!g_graphics.canUseBlendEquation())
+        return;
+    if(m_blendEquation == BlendEquation_Add)
+        glBlendEquation(0x8006); // GL_FUNC_ADD
+    else if(m_blendEquation == BlendEquation_Max)
+        glBlendEquation(0x8008); // GL_MAX
+}
+
+void PainterOGL::updateGlClipRect()
+{
+    if(m_clipRect.isValid()) {
+        glEnable(GL_SCISSOR_TEST);
+        glScissor(m_clipRect.left(), m_resolution.height() - m_clipRect.bottom() - 1, m_clipRect.width(), m_clipRect.height());
+    } else {
+        glScissor(0, 0, m_resolution.width(), m_resolution.height());
+        glDisable(GL_SCISSOR_TEST);
+    }
+}
+
+void PainterOGL::updateGlAlphaWriting()
+{
+    if(m_alphaWriting)
+        glColorMask(1,1,1,1);
+    else
+        glColorMask(1,1,1,0);
+}
+
+void PainterOGL::updateGlViewport()
+{
+    glViewport(0, 0, m_resolution.width(), m_resolution.height());
+}

src/framework/graphics/ogl/painterogl.h

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef PAINTEROGL_H
+#define PAINTEROGL_H
+
+#include <framework/graphics/painter.h>
+
+class PainterOGL : public Painter
+{
+public:
+    struct PainterState {
+        Size resolution;
+        Matrix3 transformMatrix;
+        Matrix3 projectionMatrix;
+        Matrix3 textureMatrix;
+        Color color;
+        float opacity;
+        Painter::CompositionMode compositionMode;
+        Painter::BlendEquation blendEquation;
+        Rect clipRect;
+        Texture *texture;
+        PainterShaderProgram *shaderProgram;
+        bool alphaWriting;
+    };
+
+    PainterOGL();
+    virtual ~PainterOGL() { }
+
+    virtual void bind() { refreshState(); }
+    virtual void unbind() { }
+
+    void resetState();
+    virtual void refreshState();
+    void saveState();
+    void saveAndResetState();
+    void restoreSavedState();
+
+    void clear(const Color& color);
+    void clearRect(const Color& color, const Rect& rect);
+
+    virtual void setTransformMatrix(const Matrix3& transformMatrix) { m_transformMatrix = transformMatrix; }
+    virtual void setProjectionMatrix(const Matrix3& projectionMatrix) { m_projectionMatrix = projectionMatrix; }
+    virtual void setTextureMatrix(const Matrix3& textureMatrix) { m_textureMatrix = textureMatrix; }
+    virtual void setCompositionMode(CompositionMode compositionMode);
+    virtual void setBlendEquation(BlendEquation blendEquation);
+    virtual void setClipRect(const Rect& clipRect);
+    virtual void setShaderProgram(PainterShaderProgram *shaderProgram) { m_shaderProgram = shaderProgram; }
+    virtual void setTexture(Texture *texture);
+    virtual void setAlphaWriting(bool enable);
+
+    void setTexture(const TexturePtr& texture) { setTexture(texture.get()); }
+    void setResolution(const Size& resolution);
+
+    void scale(float x, float y);
+    void translate(float x, float y);
+    void rotate(float angle);
+    void rotate(float x, float y, float angle);
+
+    void pushTransformMatrix();
+    void popTransformMatrix();
+
+    Matrix3 getTransformMatrix() { return m_transformMatrix; }
+    Matrix3 getProjectionMatrix() { return m_projectionMatrix; }
+    Matrix3 getTextureMatrix() { return m_textureMatrix; }
+    BlendEquation getBlendEquation() { return m_blendEquation; }
+    PainterShaderProgram *getShaderProgram() { return m_shaderProgram; }
+    bool getAlphaWriting() { return m_alphaWriting; }
+
+    void resetBlendEquation() { setBlendEquation(BlendEquation_Add); }
+    void resetTexture() { setTexture(nullptr); }
+    void resetAlphaWriting() { setAlphaWriting(false); }
+    void resetTransformMatrix() { setTransformMatrix(Matrix3()); }
+
+protected:
+    void updateGlTexture();
+    void updateGlCompositionMode();
+    void updateGlBlendEquation();
+    void updateGlClipRect();
+    void updateGlAlphaWriting();
+    void updateGlViewport();
+
+    CoordsBuffer m_coordsBuffer;
+
+    std::vector<Matrix3> m_transformMatrixStack;
+    Matrix3 m_transformMatrix;
+    Matrix3 m_projectionMatrix;
+    Matrix3 m_textureMatrix;
+
+    BlendEquation m_blendEquation;
+    Texture *m_texture;
+    bool m_alphaWriting;
+
+    PainterState m_olderStates[10];
+    int m_oldStateIndex;
+
+    uint m_glTextureId;
+};
+
+#endif

src/framework/graphics/ogl/painterogl1.cpp

@@ -0,0 +1,328 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#if !defined(OPENGL_ES) || OPENGL_ES==1
+
+#include "painterogl1.h"
+#include <framework/graphics/graphics.h>
+
+PainterOGL1 *g_painterOGL1 = nullptr;
+
+PainterOGL1::PainterOGL1()
+{
+    m_matrixMode = GL_PROJECTION;
+    resetState();
+}
+
+void PainterOGL1::refreshState()
+{
+    PainterOGL::refreshState();
+    updateGlColor();
+    updateGlMatrixMode();
+    updateGlTransformMatrix();
+    updateGlProjectionMatrix();
+    updateGlTextureMatrix();
+    updateGlTextureState();
+}
+
+void PainterOGL1::bind()
+{
+    PainterOGL::bind();
+
+    // vertex and texture coord arrays are always enabled
+    // to avoid massive enable/disables, thus improving frame rate
+    if(g_graphics.canUseDrawArrays())
+        glEnableClientState(GL_VERTEX_ARRAY);
+}
+
+void PainterOGL1::unbind()
+{
+    if(g_graphics.canUseDrawArrays())
+        glDisableClientState(GL_VERTEX_ARRAY);
+}
+
+void PainterOGL1::drawCoords(CoordsBuffer& coordsBuffer, DrawMode drawMode)
+{
+    int vertexCount = coordsBuffer.getVertexCount();
+    if(vertexCount == 0)
+        return;
+
+    bool textured = coordsBuffer.getTextureCoordCount() != 0 && m_texture;
+
+    // skip drawing of empty textures
+    if(textured && m_texture->isEmpty())
+        return;
+
+    if(textured != m_textureEnabled) {
+        m_textureEnabled = textured;
+        updateGlTextureState();
+    }
+
+    // GDI Generic driver has this bug
+    if(g_graphics.hasScissorBug())
+        updateGlClipRect();
+
+    // use vertex arrays if possible, much faster
+    if(g_graphics.canUseDrawArrays()) {
+        // update coords buffer hardware caches if enabled
+        coordsBuffer.updateCaches();
+        bool hardwareCached = coordsBuffer.isHardwareCached();
+
+        // only set texture coords arrays when needed
+        if(textured) {
+            if(hardwareCached) {
+                coordsBuffer.getHardwareTextureCoordArray()->bind();
+                glTexCoordPointer(2, GL_FLOAT, 0, nullptr);
+            } else
+                glTexCoordPointer(2, GL_FLOAT, 0, coordsBuffer.getTextureCoordArray());
+        }
+
+        // set vertex array
+        if(hardwareCached) {
+            coordsBuffer.getHardwareVertexArray()->bind();
+            glVertexPointer(2, GL_FLOAT, 0, nullptr);
+        } else
+            glVertexPointer(2, GL_FLOAT, 0, coordsBuffer.getVertexArray());
+
+        if(hardwareCached)
+            HardwareBuffer::unbind(HardwareBuffer::VertexBuffer);
+
+        // draw the element in coords buffers
+        if(drawMode == Triangles)
+            glDrawArrays(GL_TRIANGLES, 0, vertexCount);
+        else if(drawMode == TriangleStrip)
+            glDrawArrays(GL_TRIANGLE_STRIP, 0, vertexCount);
+    }
+#ifndef OPENGL_ES
+    else {
+        int verticesSize = vertexCount*2;
+        float *vertices = coordsBuffer.getVertexArray();
+        float *texCoords = coordsBuffer.getTextureCoordArray();
+
+        // use glBegin/glEnd, this is not available in OpenGL ES
+        // and is considered much slower then glDrawArrays,
+        // but this code is executed in really old graphics cards
+        if(drawMode == Triangles)
+            glBegin(GL_TRIANGLES);
+        else if(drawMode == TriangleStrip)
+            glBegin(GL_TRIANGLE_STRIP);
+        for(int i=0;i<verticesSize;i+=2) {
+            if(textured)
+                glTexCoord2f(texCoords[i], texCoords[i+1]);
+            glVertex2f(vertices[i], vertices[i+1]);
+        }
+        glEnd();
+    }
+#endif
+}
+
+void PainterOGL1::drawTextureCoords(CoordsBuffer& coordsBuffer, const TexturePtr& texture)
+{
+    if(texture->isEmpty())
+        return;
+
+    setTexture(texture.get());
+    drawCoords(coordsBuffer);
+}
+
+void PainterOGL1::drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setTexture(texture.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addQuad(dest, src);
+    drawCoords(m_coordsBuffer, TriangleStrip);
+}
+
+void PainterOGL1::drawUpsideDownTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setTexture(texture.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addUpsideDownQuad(dest, src);
+    drawCoords(m_coordsBuffer, TriangleStrip);
+}
+
+void PainterOGL1::drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setTexture(texture.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addRepeatedRects(dest, src);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL1::drawFilledRect(const Rect& dest)
+{
+    if(dest.isEmpty())
+        return;
+
+    setTexture(nullptr);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addRect(dest);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL1::drawFilledTriangle(const Point& a, const Point& b, const Point& c)
+{
+    if(a == b || a == c || b == c)
+        return;
+
+    setTexture(nullptr);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addTriangle(a, b, c);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL1::drawBoundingRect(const Rect& dest, int innerLineWidth)
+{
+    if(dest.isEmpty() || innerLineWidth == 0)
+        return;
+
+    setTexture(nullptr);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addBoudingRect(dest, innerLineWidth);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL1::setMatrixMode(PainterOGL1::MatrixMode matrixMode)
+{
+    if(m_matrixMode == matrixMode)
+        return;
+    m_matrixMode = matrixMode;
+    updateGlMatrixMode();
+}
+
+void PainterOGL1::setTransformMatrix(const Matrix3& transformMatrix)
+{
+    m_transformMatrix = transformMatrix;
+    if(g_painter == this)
+        updateGlTransformMatrix();
+}
+
+void PainterOGL1::setProjectionMatrix(const Matrix3& projectionMatrix)
+{
+    m_projectionMatrix = projectionMatrix;
+    if(g_painter == this)
+        updateGlProjectionMatrix();
+}
+
+void PainterOGL1::setTextureMatrix(const Matrix3& textureMatrix)
+{
+    // avoid re-updating texture matrix
+    if(m_textureMatrix == textureMatrix)
+        return;
+    m_textureMatrix = textureMatrix;
+    updateGlTextureMatrix();
+}
+
+void PainterOGL1::setColor(const Color& color)
+{
+    if(m_color == color)
+        return;
+    m_color = color;
+    updateGlColor();
+}
+
+void PainterOGL1::setOpacity(float opacity)
+{
+    if(m_opacity == opacity)
+        return;
+    m_opacity = opacity;
+    updateGlColor();
+}
+
+void PainterOGL1::updateGlColor()
+{
+    glColor4f(m_color.rF(), m_color.gF(), m_color.bF(), m_color.aF() * m_opacity);
+}
+
+void PainterOGL1::updateGlMatrixMode()
+{
+    glMatrixMode(m_matrixMode);
+}
+
+void PainterOGL1::updateGlTransformMatrix()
+{
+    float glTransformMatrix[] = {
+        m_transformMatrix(1,1), m_transformMatrix(1,2),                    0.0f, m_transformMatrix(1,3),
+        m_transformMatrix(2,1), m_transformMatrix(2,2),                    0.0f, m_transformMatrix(2,3),
+                          0.0f,                   0.0f,                    1.0f,                   0.0f,
+        m_transformMatrix(3,1), m_transformMatrix(3,2),                    0.0f, m_transformMatrix(3,3),
+    };
+
+    setMatrixMode(MatrixTransform);
+    glLoadMatrixf(glTransformMatrix);
+}
+
+void PainterOGL1::updateGlProjectionMatrix()
+{
+    float glProjectionMatrix[] = {
+        m_projectionMatrix(1,1), m_projectionMatrix(1,2),                    0.0f, m_projectionMatrix(1,3),
+        m_projectionMatrix(2,1), m_projectionMatrix(2,2),                    0.0f, m_projectionMatrix(2,3),
+                           0.0f,                    0.0f,                    1.0f,                    0.0f,
+        m_projectionMatrix(3,1), m_projectionMatrix(3,2),                    0.0f, m_projectionMatrix(3,3),
+    };
+
+    setMatrixMode(MatrixProjection);
+    glLoadMatrixf(glProjectionMatrix);
+}
+
+void PainterOGL1::updateGlTextureMatrix()
+{
+    float glTextureMatrix[] = {
+        m_textureMatrix(1,1), m_textureMatrix(1,2),             0.0f,                 0.0f,
+        m_textureMatrix(2,1), m_textureMatrix(2,2),             0.0f,                 0.0f,
+                        0.0f,                 0.0f,             1.0f,                 0.0f,
+        m_textureMatrix(3,1), m_textureMatrix(3,2),             0.0f, m_textureMatrix(3,3),
+    };
+
+    setMatrixMode(MatrixTexture);
+    glLoadMatrixf(glTextureMatrix);
+}
+
+void PainterOGL1::updateGlTextureState()
+{
+    if(m_textureEnabled) {
+        glEnable(GL_TEXTURE_2D);
+        if(g_graphics.canUseDrawArrays())
+            glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+    } else {
+        glDisable(GL_TEXTURE_2D);
+        if(g_graphics.canUseDrawArrays())
+            glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+    }
+}
+
+#endif

src/framework/graphics/ogl/painterogl1.h

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef PAINTEROGL1_H
+#define PAINTEROGL1_H
+
+#define PAINTER_OGL1
+
+#include "painterogl.h"
+
+/**
+ * Painter using OpenGL 1.1 fixed-function rendering pipeline,
+ * compatible with OpenGL ES 1.0 and intended to be used on
+ * older graphics cards. Shaders are not available
+ * for this painter engine.
+ */
+class PainterOGL1 : public PainterOGL
+{
+public:
+    enum MatrixMode {
+        MatrixProjection = 0x1701, //GL_PROJECTION
+        MatrixTexture = 0x1702, //GL_TEXTURE
+        MatrixTransform = 0x1700 // GL_MODELVIEW
+    };
+
+    PainterOGL1();
+
+    void bind();
+    void unbind();
+
+    void refreshState();
+
+    void drawCoords(CoordsBuffer& coordsBuffer, DrawMode drawMode = Triangles);
+    void drawTextureCoords(CoordsBuffer& coordsBuffer, const TexturePtr& texture);
+    void drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawUpsideDownTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawFilledRect(const Rect& dest);
+    void drawFilledTriangle(const Point& a, const Point& b, const Point& c);
+    void drawBoundingRect(const Rect& dest, int innerLineWidth);
+
+    void setMatrixMode(MatrixMode matrixMode);
+    void setTransformMatrix(const Matrix3& projectionMatrix);
+    void setProjectionMatrix(const Matrix3& projectionMatrix);
+    void setTextureMatrix(const Matrix3& textureMatrix);
+    void setColor(const Color& color);
+    void setOpacity(float opacity);
+
+    bool hasShaders() { return false; }
+
+private:
+    void updateGlColor();
+    void updateGlMatrixMode();
+    void updateGlProjectionMatrix();
+    void updateGlTransformMatrix();
+    void updateGlTextureMatrix();
+    void updateGlTextureState();
+
+    GLenum m_matrixMode;
+    stdext::boolean<false> m_textureEnabled;
+};
+
+extern PainterOGL1 *g_painterOGL1;
+
+#endif

src/framework/graphics/ogl/painterogl2.cpp

@@ -0,0 +1,206 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "painterogl2.h"
+#include "painterogl2_shadersources.h"
+#include <framework/platform/platformwindow.h>
+
+PainterOGL2 *g_painterOGL2 = nullptr;
+
+PainterOGL2::PainterOGL2()
+{
+    m_drawProgram = nullptr;
+    resetState();
+
+    m_drawTexturedProgram = PainterShaderProgramPtr(new PainterShaderProgram);
+    assert(m_drawTexturedProgram);
+    m_drawTexturedProgram->addShaderFromSourceCode(Shader::Vertex, glslMainWithTexCoordsVertexShader + glslPositionOnlyVertexShader);
+    m_drawTexturedProgram->addShaderFromSourceCode(Shader::Fragment, glslMainFragmentShader + glslTextureSrcFragmentShader);
+    m_drawTexturedProgram->link();
+
+    m_drawSolidColorProgram = PainterShaderProgramPtr(new PainterShaderProgram);
+    assert(m_drawSolidColorProgram);
+    m_drawSolidColorProgram->addShaderFromSourceCode(Shader::Vertex, glslMainVertexShader + glslPositionOnlyVertexShader);
+    m_drawSolidColorProgram->addShaderFromSourceCode(Shader::Fragment, glslMainFragmentShader + glslSolidColorFragmentShader);
+    m_drawSolidColorProgram->link();
+
+    PainterShaderProgram::release();
+}
+
+void PainterOGL2::bind()
+{
+    PainterOGL::bind();
+
+    // vertex and texture coord attributes are always enabled
+    // to avoid massive enable/disables, thus improving frame rate
+    PainterShaderProgram::enableAttributeArray(PainterShaderProgram::VERTEX_ATTR);
+    PainterShaderProgram::enableAttributeArray(PainterShaderProgram::TEXCOORD_ATTR);
+}
+
+void PainterOGL2::unbind()
+{
+    PainterShaderProgram::disableAttributeArray(PainterShaderProgram::VERTEX_ATTR);
+    PainterShaderProgram::disableAttributeArray(PainterShaderProgram::TEXCOORD_ATTR);
+    PainterShaderProgram::release();
+}
+
+void PainterOGL2::drawCoords(CoordsBuffer& coordsBuffer, DrawMode drawMode)
+{
+    int vertexCount = coordsBuffer.getVertexCount();
+    if(vertexCount == 0)
+        return;
+
+    bool textured = coordsBuffer.getTextureCoordCount() > 0 && m_texture;
+
+    // skip drawing of empty textures
+    if(textured && m_texture->isEmpty())
+        return;
+
+    // update shader with the current painter state
+    m_drawProgram->bind();
+    m_drawProgram->setTransformMatrix(m_transformMatrix);
+    m_drawProgram->setProjectionMatrix(m_projectionMatrix);
+    if(textured) {
+        m_drawProgram->setTextureMatrix(m_textureMatrix);
+        m_drawProgram->bindMultiTextures();
+    }
+    m_drawProgram->setOpacity(m_opacity);
+    m_drawProgram->setColor(m_color);
+    m_drawProgram->setResolution(m_resolution);
+    m_drawProgram->updateTime();
+
+    // update coords buffer hardware caches if enabled
+    coordsBuffer.updateCaches();
+    bool hardwareCached = coordsBuffer.isHardwareCached();
+
+    // only set texture coords arrays when needed
+    if(textured) {
+        if(hardwareCached) {
+            coordsBuffer.getHardwareTextureCoordArray()->bind();
+            m_drawProgram->setAttributeArray(PainterShaderProgram::TEXCOORD_ATTR, nullptr, 2);
+        } else
+            m_drawProgram->setAttributeArray(PainterShaderProgram::TEXCOORD_ATTR, coordsBuffer.getTextureCoordArray(), 2);
+    } else
+        PainterShaderProgram::disableAttributeArray(PainterShaderProgram::TEXCOORD_ATTR);
+
+    // set vertex array
+    if(hardwareCached) {
+        coordsBuffer.getHardwareVertexArray()->bind();
+        m_drawProgram->setAttributeArray(PainterShaderProgram::VERTEX_ATTR, nullptr, 2);
+        HardwareBuffer::unbind(HardwareBuffer::VertexBuffer);
+    } else
+        m_drawProgram->setAttributeArray(PainterShaderProgram::VERTEX_ATTR, coordsBuffer.getVertexArray(), 2);
+
+    // draw the element in coords buffers
+    if(drawMode == Triangles)
+        glDrawArrays(GL_TRIANGLES, 0, vertexCount);
+    else if(drawMode == TriangleStrip)
+        glDrawArrays(GL_TRIANGLE_STRIP, 0, vertexCount);
+
+    if(!textured)
+        PainterShaderProgram::enableAttributeArray(PainterShaderProgram::TEXCOORD_ATTR);
+}
+
+void PainterOGL2::drawTextureCoords(CoordsBuffer& coordsBuffer, const TexturePtr& texture)
+{
+    if(texture && texture->isEmpty())
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawTexturedProgram.get());
+    setTexture(texture);
+    drawCoords(coordsBuffer);
+}
+
+void PainterOGL2::drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawTexturedProgram.get());
+    setTexture(texture);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addQuad(dest, src);
+    drawCoords(m_coordsBuffer, TriangleStrip);
+}
+
+void PainterOGL2::drawUpsideDownTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawTexturedProgram.get());
+    setTexture(texture);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addUpsideDownQuad(dest, src);
+    drawCoords(m_coordsBuffer, TriangleStrip);
+}
+
+void PainterOGL2::drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src)
+{
+    if(dest.isEmpty() || src.isEmpty() || texture->isEmpty())
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawTexturedProgram.get());
+    setTexture(texture);
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addRepeatedRects(dest, src);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL2::drawFilledRect(const Rect& dest)
+{
+    if(dest.isEmpty())
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawSolidColorProgram.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addRect(dest);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL2::drawFilledTriangle(const Point& a, const Point& b, const Point& c)
+{
+    if(a == b || a == c || b == c)
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawSolidColorProgram.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addTriangle(a, b, c);
+    drawCoords(m_coordsBuffer);
+}
+
+void PainterOGL2::drawBoundingRect(const Rect& dest, int innerLineWidth)
+{
+    if(dest.isEmpty() || innerLineWidth == 0)
+        return;
+
+    setDrawProgram(m_shaderProgram ? m_shaderProgram : m_drawSolidColorProgram.get());
+
+    m_coordsBuffer.clear();
+    m_coordsBuffer.addBoudingRect(dest, innerLineWidth);
+    drawCoords(m_coordsBuffer);
+}

src/framework/graphics/ogl/painterogl2.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef PAINTEROGL2_H
+#define PAINTEROGL2_H
+
+#define PAINTER_OGL2
+
+#include "painterogl.h"
+
+/**
+ * Painter using OpenGL 2.0 programmable rendering pipeline,
+ * compatible with OpenGL ES 2.0. Only recent cards support
+ * this painter engine.
+ */
+class PainterOGL2 : public PainterOGL
+{
+public:
+    PainterOGL2();
+
+    void bind();
+    void unbind();
+
+    void drawCoords(CoordsBuffer& coordsBuffer, DrawMode drawMode = Triangles);
+    void drawTextureCoords(CoordsBuffer& coordsBuffer, const TexturePtr& texture);
+    void drawTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawUpsideDownTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawRepeatedTexturedRect(const Rect& dest, const TexturePtr& texture, const Rect& src);
+    void drawFilledRect(const Rect& dest);
+    void drawFilledTriangle(const Point& a, const Point& b, const Point& c);
+    void drawBoundingRect(const Rect& dest, int innerLineWidth = 1);
+
+    void setDrawProgram(PainterShaderProgram *drawProgram) { m_drawProgram = drawProgram; }
+
+    bool hasShaders() { return true; }
+
+private:
+    PainterShaderProgram *m_drawProgram;
+    PainterShaderProgramPtr m_drawTexturedProgram;
+    PainterShaderProgramPtr m_drawSolidColorProgram;
+};
+
+extern PainterOGL2 *g_painterOGL2;
+
+#endif

src/framework/graphics/ogl/painterogl2_shadersources.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2010-2013 OTClient <https://github.com/edubart/otclient>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef PAINTEROGL2_SHADERSOURCES_H
+#define PAINTEROGL2_SHADERSOURCES_H
+
+static const std::string glslMainVertexShader = "\n\
+    highp vec4 calculatePosition();\n\
+    void main() {\n\
+        gl_Position = calculatePosition();\n\
+    }\n";
+
+static const std::string glslMainWithTexCoordsVertexShader = "\n\
+    attribute highp vec2 a_TexCoord;\n\
+    uniform highp mat3 u_TextureMatrix;\n\
+    varying highp vec2 v_TexCoord;\n\
+    highp vec4 calculatePosition();\n\
+    void main()\n\
+    {\n\
+        gl_Position = calculatePosition();\n\
+        v_TexCoord = (u_TextureMatrix * vec3(a_TexCoord,1.0)).xy;\n\
+    }\n";
+
+static std::string glslPositionOnlyVertexShader = "\n\
+    attribute highp vec2 a_Vertex;\n\
+    uniform highp mat3 u_TransformMatrix;\n\
+    uniform highp mat3 u_ProjectionMatrix;\n\
+    highp vec4 calculatePosition() {\n\
+        return vec4(u_ProjectionMatrix * u_TransformMatrix * vec3(a_Vertex.xy, 1.0), 1.0);\n\
+    }\n";
+
+static const std::string glslMainFragmentShader = "\n\
+    uniform lowp float u_Opacity;\n\
+    lowp vec4 calculatePixel();\n\
+    void main()\n\
+    {\n\
+        gl_FragColor = calculatePixel();\n\
+        gl_FragColor.a *= u_Opacity;\n\
+    }\n";
+
+static const std::string glslTextureSrcFragmentShader = "\n\
+    varying mediump vec2 v_TexCoord;\n\
+    uniform lowp vec4 u_Color;\n\
+    uniform sampler2D u_Tex0;\n\
+    lowp vec4 calculatePixel() {\n\
+        return texture2D(u_Tex0, v_TexCoord) * u_Color;\n\
+    }\n";
+
+static const std::string glslSolidColorFragmentShader = "\n\
+    uniform lowp vec4 u_Color;\n\
+    lowp vec4 calculatePixel() {\n\
+        return u_Color;\n\
+    }\n";
+
+#endif