Initial work on porting minimap to new RTT

src/graphics/glwrap.hpp

@@ -199,7 +199,7 @@ class FrameBuffer
     FrameBuffer(const std::vector <GLuint> &RTTs, GLuint DS, size_t w, size_t h, bool layered = false);
     ~FrameBuffer();
     void Bind();
-    std::vector<GLuint> &getRTT() { return RenderTargets; }
+    const std::vector<GLuint> &getRTT() const { return RenderTargets; }
     GLuint &getDepthTexture() { assert(DepthTexture); return DepthTexture; }
     size_t getWidth() const { return width; }
     size_t getHeight() const { return height; }

src/graphics/irr_driver.cpp

@@ -2052,7 +2052,10 @@ bool IrrDriver::supportsSplatting()
 #endif
 
 // ----------------------------------------------------------------------------
-/** Begins a rendering to a texture.
+/**
+ * THIS IS THE OLD OPENGL 1 RTT PROVIDER, USE THE SHADER-BASED
+ * RTT FOR NEW DEVELOPMENT
+ * Begins a rendering to a texture.
  *  \param dimension The size of the texture.
  *  \param name Name of the texture.
  *  \param persistent_texture Whether the created RTT texture should persist in

src/graphics/irr_driver.hpp

@@ -714,8 +714,11 @@ class IrrDriver : public IEventReceiver, public NoCopy
     unsigned UpdateLightsInfo(scene::ICameraSceneNode * const camnode, float dt);
     void computeCameraMatrix(scene::ICameraSceneNode * const camnode, size_t width, size_t height);
 
-    // --------------------- RTT --------------------
+    // --------------------- OLD RTT --------------------
     /**
+      * THIS IS THE OLD OPENGL 1 RTT PROVIDER, USE THE SHADER-BASED
+      * RTT FOR NEW DEVELOPMENT
+      *
       * Class that provides RTT (currently, only when no other 3D rendering
       * in the main scene is required)
       * Provides an optional 'setupRTTScene' method to make it quick and easy

src/graphics/post_processing.cpp

@@ -698,7 +698,7 @@ void PostProcessing::applyMLAA()
 
 // ----------------------------------------------------------------------------
 /** Render the post-processed scene */
-FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode)
+FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode, bool isRace)
 {
     IVideoDriver * const drv = irr_driver->getVideoDriver();
 
@@ -716,7 +716,7 @@ FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode)
     glDisable(GL_DEPTH_TEST);
     glDisable(GL_BLEND);
 
-    if (UserConfigParams::m_dof)
+    if (isRace && UserConfigParams::m_dof)
     {
         PROFILER_PUSH_CPU_MARKER("- DoF", 0xFF, 0x00, 0x00);
         ScopedGPUTimer Timer(irr_driver->getGPUTimer(Q_DOF));
@@ -732,7 +732,7 @@ FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode)
         if (World::getWorld() != NULL)
             hasgodrays = World::getWorld()->getTrack()->hasGodRays();
 
-        if (UserConfigParams::m_light_shaft && m_sunpixels > 30 && hasgodrays)
+        if (isRace && UserConfigParams::m_light_shaft && m_sunpixels > 30 && hasgodrays)
         {
             glEnable(GL_DEPTH_TEST);
             // Grab the sky
@@ -798,7 +798,7 @@ FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode)
     {
         PROFILER_PUSH_CPU_MARKER("- Bloom", 0xFF, 0x00, 0x00);
         ScopedGPUTimer Timer(irr_driver->getGPUTimer(Q_BLOOM));
-        if (UserConfigParams::m_bloom)
+        if (isRace && UserConfigParams::m_bloom)
         {
             glClear(GL_STENCIL_BUFFER_BIT);
             glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE);
@@ -850,7 +850,7 @@ FrameBuffer *PostProcessing::render(scene::ICameraSceneNode * const camnode)
     {
         PROFILER_PUSH_CPU_MARKER("- Motion blur", 0xFF, 0x00, 0x00);
         ScopedGPUTimer Timer(irr_driver->getGPUTimer(Q_MOTIONBLUR));
-        if (UserConfigParams::m_motionblur && m_any_boost && World::getWorld() != NULL) // motion blur
+        if (isRace && UserConfigParams::m_motionblur && m_any_boost && World::getWorld() != NULL) // motion blur
         {
             renderMotionBlur(0, *in_fbo, *out_fbo);
             std::swap(in_fbo, out_fbo);

src/graphics/post_processing.hpp

@@ -96,7 +96,7 @@ class PostProcessing: public IReferenceCounted
     void renderGlow(unsigned tex);
 
     /** Render the post-processed scene */
-    FrameBuffer *render(scene::ICameraSceneNode * const camnode);
+    FrameBuffer *render(scene::ICameraSceneNode * const camnode, bool isRace);
 
     /** Use motion blur for a short time */
     void         giveBoost(unsigned int cam_index);

src/graphics/render.cpp

@@ -185,7 +185,7 @@ void IrrDriver::renderGLSL(float dt)
         // Render the post-processed scene
         if (UserConfigParams::m_dynamic_lights)
         {
-            FrameBuffer *fbo = m_post_processing->render(camnode);
+            FrameBuffer *fbo = m_post_processing->render(camnode, true);
 
             if (irr_driver->getNormals())
                 irr_driver->getFBO(FBO_NORMAL_AND_DEPTHS).BlitToDefault(viewport.UpperLeftCorner.X, viewport.UpperLeftCorner.Y, viewport.LowerRightCorner.X, viewport.LowerRightCorner.Y);

src/graphics/rtts.cpp

@@ -20,7 +20,9 @@
 #include "config/user_config.hpp"
 #include "graphics/glwrap.hpp"
 #include "graphics/irr_driver.hpp"
+#include "graphics/post_processing.hpp"
 #include "utils/log.hpp"
+#include <ISceneManager.h>
 
 static GLuint generateRTT3D(GLenum target, size_t w, size_t h, size_t d, GLint internalFormat, GLint format, GLint type)
 {
@@ -290,3 +292,23 @@ RTT::~RTT()
         delete m_RSM;
     }
 }
+
+FrameBuffer* RTT::render(scene::ICameraSceneNode* camera, float dt)
+{
+    irr_driver->setRTT(this);
+
+    irr_driver->getSceneManager()->setActiveCamera(camera);
+
+    std::vector<IrrDriver::GlowData> glows;
+    irr_driver->computeCameraMatrix(camera, 512, 512);
+    unsigned plc = irr_driver->UpdateLightsInfo(camera, dt);
+    irr_driver->renderScene(camera, plc, glows, dt, false, true);
+    FrameBuffer* frame_buffer = irr_driver->getPostProcessing()->render(camera, false);
+    glViewport(0, 0, UserConfigParams::m_width, UserConfigParams::m_height);
+
+    irr_driver->setRTT(NULL);
+    glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+    irr_driver->getSceneManager()->setActiveCamera(NULL);
+    return frame_buffer;
+}

src/graphics/rtts.hpp

@@ -45,6 +45,9 @@ class RTT
     unsigned getDepthStencilTexture() const { return DepthStencilTexture; }
     unsigned getRenderTarget(enum TypeRTT target) const { return RenderTargetTextures[target]; }
     FrameBuffer& getFBO(enum TypeFBO fbo) { return FrameBuffers[fbo]; }
+
+    FrameBuffer* render(scene::ICameraSceneNode* camera, float dt);
+
 private:
     unsigned RenderTargetTextures[RTT_COUNT];
     PtrVector<FrameBuffer> FrameBuffers;

src/guiengine/widgets/model_view_widget.cpp

@@ -173,21 +173,9 @@ void ModelViewWidget::update(float delta)
     m_rtt_main_node->setRotation(core::vector3df(0.0f, angle, 0.0f));
 
     m_rtt_main_node->setVisible(true);
-    irr_driver->setRTT(m_rtt_provider);
 
-    irr_driver->getSceneManager()->setActiveCamera(m_camera);
+    m_frame_buffer = m_rtt_provider->render(m_camera, GUIEngine::getLatestDt());
 
-    std::vector<IrrDriver::GlowData> glows;
-    irr_driver->computeCameraMatrix(m_camera, 512, 512);
-    unsigned plc = irr_driver->UpdateLightsInfo(m_camera, GUIEngine::getLatestDt());
-    irr_driver->renderScene(m_camera, plc, glows, GUIEngine::getLatestDt(), false, true);
-    m_frame_buffer = irr_driver->getPostProcessing()->render(m_camera);
-    glViewport(0, 0, UserConfigParams::m_width, UserConfigParams::m_height);
-
-    irr_driver->setRTT(NULL);
-    glBindFramebuffer(GL_FRAMEBUFFER, 0);
-
-    irr_driver->getSceneManager()->setActiveCamera(NULL);
     m_rtt_main_node->setVisible(false);
 }
 
@@ -284,10 +272,7 @@ void ModelViewWidget::setupRTTScene(PtrVector<scene::IMesh, REF>& mesh,
     m_camera->setAspectRatio(1.0f);
 
     m_camera->setPosition(core::vector3df(0.0, 20.0f, 70.0f));
-    if (irr_driver->isGLSL())
-        m_camera->setUpVector(core::vector3df(0.0, 1.0, 0.0));
-    else
-        m_camera->setUpVector(core::vector3df(0.0, 1.0, 0.0));
+    m_camera->setUpVector(core::vector3df(0.0, 1.0, 0.0));
     m_camera->setTarget(core::vector3df(0, 10, 0.0f));
     m_camera->setFOV(DEGREE_TO_RAD*50.0f);
     m_camera->updateAbsolutePosition();

src/states_screens/race_gui.cpp

@@ -342,19 +342,27 @@ void RaceGUI::drawGlobalMiniMap()
     // arenas currently don't have a map.
     if(world->getTrack()->isArena() || world->getTrack()->isSoccer()) return;
 
-    const video::ITexture *mini_map = world->getTrack()->getMiniMap();
+    const video::ITexture *old_rtt_mini_map = world->getTrack()->getOldRttMiniMap();
+    const FrameBuffer* new_rtt_mini_map = world->getTrack()->getNewRttMiniMap();
 
     int upper_y = UserConfigParams::m_height - m_map_bottom - m_map_height;
     int lower_y = UserConfigParams::m_height - m_map_bottom;
 
-    if (mini_map != NULL)
+    core::rect<s32> dest(m_map_left, upper_y,
+                         m_map_left + m_map_width, lower_y);
+
+    if (old_rtt_mini_map != NULL)
     {
-        core::rect<s32> dest(m_map_left,               upper_y,
-                             m_map_left + m_map_width, lower_y);
         core::rect<s32> source(core::position2di(0, 0),
-                               mini_map->getOriginalSize());
-        draw2DImage(mini_map, dest, source,
-                                                  NULL, NULL, true);
+                               old_rtt_mini_map->getOriginalSize());
+        draw2DImage(old_rtt_mini_map, dest, source,
+                    NULL, NULL, true);
+    }
+    else if (new_rtt_mini_map != NULL)
+    {
+        core::rect<s32> source(0, 0, new_rtt_mini_map->getWidth(), new_rtt_mini_map->getHeight());
+        draw2DImageFromRTT(new_rtt_mini_map->getRTT()[0], 512, 512,
+            dest, source, NULL, true);
     }
 
     for(unsigned int i=0; i<world->getNumKarts(); i++)

src/states_screens/race_gui_overworld.cpp

@@ -321,17 +321,25 @@ void RaceGUIOverworld::drawGlobalMiniMap()
     }
 
 
-    const video::ITexture *mini_map = world->getTrack()->getMiniMap();
+    const video::ITexture *old_rtt_mini_map = world->getTrack()->getOldRttMiniMap();
+    const FrameBuffer* new_rtt_mini_map = world->getTrack()->getNewRttMiniMap();
 
     int upper_y = m_map_bottom - m_map_height;
     int lower_y = m_map_bottom;
 
-    if (mini_map != NULL)
+    core::rect<s32> dest(m_map_left, upper_y,
+                         m_map_left + m_map_width, lower_y);
+
+    if (old_rtt_mini_map != NULL)
+    {
+        core::rect<s32> source(core::position2di(0, 0), old_rtt_mini_map->getOriginalSize());
+        draw2DImage(old_rtt_mini_map, dest, source, 0, 0, true);
+    }
+    else if (new_rtt_mini_map != NULL)
     {
-        core::rect<s32> dest(m_map_left,               upper_y,
-                             m_map_left + m_map_width, lower_y);
-        core::rect<s32> source(core::position2di(0, 0), mini_map->getOriginalSize());
-        draw2DImage(mini_map, dest, source, 0, 0, true);
+        core::rect<s32> source(0, 0, new_rtt_mini_map->getWidth(), new_rtt_mini_map->getHeight());
+        draw2DImageFromRTT(new_rtt_mini_map->getRTT()[0], 512, 512,
+            dest, source, NULL, true);
     }
 
     Vec3 kart_xyz;

src/tracks/quad_graph.cpp

@@ -970,20 +970,35 @@ int QuadGraph::findOutOfRoadSector(const Vec3& xyz,
 //-----------------------------------------------------------------------------
 /** Takes a snapshot of the driveline quads so they can be used as minimap.
  */
-video::ITexture *QuadGraph::makeMiniMap(const core::dimension2du &origdimension,
-                                        const std::string &name,
-                                        const video::SColor &fill_color)
+void QuadGraph::makeMiniMap(const core::dimension2du &origdimension,
+                            const std::string &name,
+                            const video::SColor &fill_color,
+                            video::ITexture** oldRttMinimap,
+                            FrameBuffer** newRttMinimap)
 {
+    *oldRttMinimap = NULL;
+    *newRttMinimap = NULL;
+
     const core::dimension2du dimension = origdimension * 2;
 
-    IrrDriver::RTTProvider rttProvider(dimension, name, true);
+    RTT* newRttProvider = NULL;
+    IrrDriver::RTTProvider* oldRttProvider = NULL;
+    if (irr_driver->isGLSL())
+    {
+        newRttProvider = new RTT(512, 512);
+    }
+    else
+    {
+        oldRttProvider = new IrrDriver::RTTProvider(dimension, name, true);
+    }
+
     video::SColor red(128, 255, 0, 0);
     createMesh(/*show_invisible part of the track*/ false,
                /*enable_transparency*/ false,
                /*track_color*/    &fill_color,
                /*lap line color*/  &red                       );
 
-    m_node = irr_driver->getSceneManager()->addMeshSceneNode(m_mesh);   // add Debug Mesh
+    m_node = irr_driver->addMesh(m_mesh);
 #ifdef DEBUG
     m_node->setName("minimap-mesh");
 #endif
@@ -1035,28 +1050,47 @@ video::ITexture *QuadGraph::makeMiniMap(const core::dimension2du &origdimension,
                                             range,
                                             -1, bb_max.getY()-bb_min.getY()+1);
     camera->setProjectionMatrix(projection, true);
+
+    irr_driver->suppressSkyBox();
+    irr_driver->clearLights();
+
     // Adjust Y position by +1 for max, -1 for min - this helps in case that
     // the maximum Y coordinate is negative (otherwise the minimap is mirrored)
     // and avoids problems for tracks which have a flat (max Y = min Y) minimap.
     camera->setPosition(core::vector3df(center.getX(), bb_max.getY()+1, center.getZ()));
     camera->setUpVector(core::vector3df(0, 0, 1));
     camera->setTarget(core::vector3df(center.getX(),bb_min.getY()-1,center.getZ()));
+    camera->setAspectRatio(1.0f);
+    camera->updateAbsolutePosition();
+
+    video::ITexture* texture = NULL;
+    FrameBuffer* frame_buffer = NULL;
+    if (irr_driver->isGLSL())
+    {
+        frame_buffer = newRttProvider->render(camera, GUIEngine::getLatestDt());
 
-    video::ITexture *texture = rttProvider.renderToTexture();
+        // TODO: leak
+        //delete newRttProvider;
+    }
+    else
+    {
+        texture = oldRttProvider->renderToTexture();
+        delete oldRttProvider;
+    }
 
     cleanupDebugMesh();
     irr_driver->removeCameraSceneNode(camera);
     m_min_coord = bb_min;
 
 
-    if (texture == NULL)
+    if (texture == NULL && frame_buffer == NULL)
     {
         Log::error("Quad Graph", "[makeMiniMap] WARNING: RTT does not appear to work,"
                         "mini-map will not be available.");
-        return NULL;
     }
 
-    return texture;
+    *oldRttMinimap = texture;
+    *newRttMinimap = frame_buffer;
 }   // makeMiniMap
 
 //-----------------------------------------------------------------------------

src/tracks/quad_graph.hpp

@@ -37,6 +37,7 @@ namespace irr
 using namespace irr;
 
 class CheckLine;
+class FrameBuffer;
 
 /**
  *  \brief This class stores a graph of quads. It uses a 'simplified singleton'
@@ -118,10 +119,11 @@ class QuadGraph : public NoCopy
                                          float forwards_distance=1.5f,
                                          float sidewards_distance=1.5f,
                                          float upwards_distance=0.0f) const;
-    video::ITexture *makeMiniMap(const core::dimension2du &where,
-                                 const std::string &name,
-                                 const video::SColor &fill_color
-                                        =video::SColor(127, 255, 255, 255) );
+    void        makeMiniMap(const core::dimension2du &where,
+                            const std::string &name,
+                            const video::SColor &fill_color,
+                            video::ITexture** oldRttMinimap,
+                            FrameBuffer** newRttMinimap);
     void         mapPoint2MiniMap(const Vec3 &xyz, Vec3 *out) const;
     void         updateDistancesForAllSuccessors(unsigned int indx,
                                                  float delta,