paysages: Added file 'app' and 'version' headers.

git-svn-id: https://subversion.assembla.com/svn/thunderk/paysages@309 b1fd45b6-86a6-48da-8261-f70d1f35bdcc

TODO

@@ -1,7 +1,8 @@
 Technology Preview 2 :
 - Render tab previews should not rerender when changing render options.
-- Compute shadows only once for all textures at a same location.
+- Compute shadows only once for all textures at a same location (need an intermediary light status).
-- Add antialiasing option (pay attention to memory usage).
+- Add layer sorting/naming.
+- Save GUI config (views, render params).
 - Add an OSD ability on previews and use it for camera location and user landmarks.
 - Add a material editor dialog.
 - Add a zone editor dialog for localized textures.
@@ -9,13 +10,13 @@ Technology Preview 2 :
 - Add a noise filler (and maybe noise intervals ?).
 - Improve curve editor.
 - Water and terrain LOD moves with the camera, fix it like in the wanderer.
-- Implement a file header/versioning.
+- More threading in previews and layered previews (with a less detailed layer in the background).
 
 Technology Preview 3 :
 - Restore render progress.
+- Add antialiasing option (pay attention to memory usage).
 - Add basic vegetation system (not sure).
 - Improve sky rendering (colors and light halo).
-- Add rendering steps in small previews (not sure).
 
 Release Candidate :
 - Polish all features and UI.

gui_qt/mainwindow.cpp

@@ -154,7 +154,18 @@ void MainWindow::fileSave()
         {
             filepath = filepath.append(".p3d");
         }
-        paysagesSave((char*)filepath.toStdString().c_str());
+
+        FileOperationResult result = paysagesSave((char*) filepath.toStdString().c_str());
+        switch (result)
+        {
+        case FILE_OPERATION_OK:
+            break;
+        case FILE_OPERATION_IOERROR:
+            QMessageBox::critical(this, tr("Paysages 3D - File saving error"), tr("Can't write specified file : %1").arg(filepath));
+            break;
+        default:
+            QMessageBox::critical(this, tr("Paysages 3D - File saving error"), tr("Unexpected error while saving file : %1").arg(filepath));
+        }
     }
 }
 
@@ -165,15 +176,31 @@ void MainWindow::fileLoad()
         QString filepath = QFileDialog::getOpenFileName(this, tr("Paysages 3D - Choose a scenery file to load"), QString(), tr("Paysages 3D Scenery (*.p3d)"));
         if (!filepath.isNull())
         {
-            paysagesLoad((char*)filepath.toStdString().c_str());
+            FileOperationResult result = paysagesLoad((char*) filepath.toStdString().c_str());
+            switch (result)
+            {
+            case FILE_OPERATION_OK:
                 refreshAll();
+                break;
+            case FILE_OPERATION_IOERROR:
+                QMessageBox::critical(this, tr("Paysages 3D - File loading error"), tr("Can't read specified file : %1").arg(filepath));
+                break;
+            case FILE_OPERATION_APP_MISMATCH:
+                QMessageBox::critical(this, tr("Paysages 3D - File loading error"), tr("This file doesn't look like a Paysages 3D file : %1").arg(filepath));
+                break;
+            case FILE_OPERATION_VERSION_MISMATCH:
+                QMessageBox::critical(this, tr("Paysages 3D - File loading error"), tr("This file was created with an incompatible Paysages 3D version : %1").arg(filepath));
+                break;
+            default:
+                QMessageBox::critical(this, tr("Paysages 3D - File loading error"), tr("Unexpected error while loading file : %1").arg(filepath));
+            }
         }
     }
 }
 
 void MainWindow::showAboutDialog()
 {
-    QMessageBox::about(this, tr("Paysages 3D"), tr("A 3D landscape editing and rendering software.\n\nCredits :\nProgramming - Michael Lemaire"));
+    QMessageBox::about(this, tr("Paysages 3D"), tr("A 3D landscape editing and rendering software.\n\nAuthors :\nProgramming - Michael Lemaire\n\nQt - http://qt.nokia.com/\nDevIL - http://openil.sourceforge.net/\nGLib - http://www.gtk.org/\n"));
 }
 
 void MainWindow::quickPreview()

i18n/paysages_fr.ts

@@ -772,25 +772,82 @@ rapide (F5)</translation>
     </message>
     <message>
         <location filename="../gui_qt/mainwindow.cpp" line="150"/>
-        <location filename="../gui_qt/mainwindow.cpp" line="165"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
         <source>Paysages 3D Scenery (*.p3d)</source>
         <translation>Scène Paysages 3D (*.p3d)</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="163"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="164"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="167"/>
+        <source>Paysages 3D - File saving error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="164"/>
+        <source>Can&apos;t write specified file : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="167"/>
+        <source>Unexpected error while saving file : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="174"/>
         <source>Do you want to load a scenery from file ? Any unsaved changes will be lost.</source>
         <translation>Voulez-vous charger une scène ? Les modifications nons sauvegardées seront perdues.</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="163"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="174"/>
         <source>Paysages 3D - Load scenery</source>
         <translation>Paysages 3D - Charger une scène</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="165"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
         <source>Paysages 3D - Choose a scenery file to load</source>
         <translation>Paysages 3D - Choisissez un fichier de scène à charger</translation>
     </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="186"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="189"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="192"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="195"/>
+        <source>Paysages 3D - File loading error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="186"/>
+        <source>Can&apos;t read specified file : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="189"/>
+        <source>This file doesn&apos;t look like a Paysages 3D file : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="192"/>
+        <source>This file was created with an incompatible Paysages 3D version : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="195"/>
+        <source>Unexpected error while loading file : %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../gui_qt/mainwindow.cpp" line="203"/>
+        <source>A 3D landscape editing and rendering software.
+
+Authors :
+Programming - Michael Lemaire
+
+Qt - http://qt.nokia.com/
+DevIL - http://openil.sourceforge.net/
+GLib - http://www.gtk.org/
+</source>
+        <translation type="unfinished"></translation>
+    </message>
     <message>
         <location filename="../gui_qt/mainwindow.cpp" line="88"/>
         <source>Sky</source>
@@ -888,17 +945,16 @@ rapide (F5)</translation>
         <translation type="obsolete">Voulez-vous charger un paysage ? Les modifications nons sauvegardées seront perdues.</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
+        <location filename="../gui_qt/mainwindow.cpp" line="203"/>
         <source>Paysages 3D</source>
         <translation>Paysages 3D</translation>
     </message>
     <message>
-        <location filename="../gui_qt/mainwindow.cpp" line="176"/>
         <source>A 3D landscape editing and rendering software.
 
 Credits :
 Programming - Michael Lemaire</source>
-        <translation>Un logiciel d&apos;édition et rendu de décors naturels en 3D
+        <translation type="obsolete">Un logiciel d&apos;édition et rendu de décors naturels en 3D
 
 Crédits :
 Développement - Michaël LEMAIRE</translation>

lib_paysages/main.c

@@ -13,6 +13,9 @@
 #include "camera.h"
 #include "scenery.h"
 #include "render.h"
+#include "main.h"
+
+#define APP_HEADER 1986325632.125
 
 void paysagesInit()
 {
@@ -55,12 +58,55 @@ void paysagesQuit()
     renderQuit();
 }
 
-void paysagesSave(char* filepath)
+FileOperationResult paysagesSave(char* filepath)
 {
-    scenerySaveToFile(filepath);
+    PackStream* stream = packWriteFile(filepath);
+    double app_header, version_header;
+    
+    if (!stream)
+    {
+        return FILE_OPERATION_IOERROR;
     }
     
-void paysagesLoad(char* filepath)
+    app_header = (double)APP_HEADER;
-{
+    packWriteDouble(stream, &app_header);
-    sceneryLoadFromFile(filepath);
+    version_header = (double)PAYSAGES_CURRENT_DATA_VERSION;
+    packWriteDouble(stream, &version_header);
+    
+    scenerySave(stream);
+    
+    packCloseStream(stream);
+    
+    return FILE_OPERATION_OK;
+}
+
+FileOperationResult paysagesLoad(char* filepath)
+{
+    PackStream* stream = packReadFile(filepath);
+    double app_header, version_header;
+
+    if (!stream)
+    {
+        return FILE_OPERATION_IOERROR;
+    }
+
+    packReadDouble(stream, &app_header);
+    if (app_header != APP_HEADER)
+    {
+        packCloseStream(stream);
+        return FILE_OPERATION_APP_MISMATCH;
+    }
+    
+    packReadDouble(stream, &version_header);
+    if ((int)version_header != PAYSAGES_CURRENT_DATA_VERSION)
+    {
+        packCloseStream(stream);
+        return FILE_OPERATION_VERSION_MISMATCH;
+    }
+
+    sceneryLoad(stream);
+
+    packCloseStream(stream);
+    
+    return FILE_OPERATION_OK;
 }

lib_paysages/main.h

@@ -1,14 +1,23 @@
 #ifndef _PAYSAGES_MAIN_H_
 #define _PAYSAGES_MAIN_H_
 
+#define PAYSAGES_CURRENT_DATA_VERSION 1
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+    typedef enum {
+        FILE_OPERATION_OK,
+        FILE_OPERATION_IOERROR,
+        FILE_OPERATION_APP_MISMATCH,
+        FILE_OPERATION_VERSION_MISMATCH
+    } FileOperationResult;
+
     void paysagesInit();
     void paysagesQuit();
-void paysagesSave(char* filepath);
+    FileOperationResult paysagesSave(char* filepath);
-void paysagesLoad(char* filepath);
+    FileOperationResult paysagesLoad(char* filepath);
 
 #ifdef __cplusplus
 }

lib_paysages/scenery.c

@@ -65,10 +65,8 @@ void sceneryQuit()
     noiseQuit();
 }
 
-void scenerySaveToFile(char* filepath)
+void scenerySave(PackStream* stream)
 {
-    PackStream* stream = packWriteFile(filepath);
-
     noiseSave(stream);
     atmosphereSave(stream, &_atmosphere);
     cameraSave(stream, &_camera);
@@ -79,14 +77,10 @@ void scenerySaveToFile(char* filepath)
     texturesSave(stream, &_textures);
     vegetationSave(stream, _vegetation);
     waterSave(stream, &_water);
-
-    packCloseStream(stream);
 }
 
-void sceneryLoadFromFile(char* filepath)
+void sceneryLoad(PackStream* stream)
 {
-    PackStream* stream = packReadFile(filepath);
-
     /* TODO Use intermediary definitions ? */
 
     noiseLoad(stream);
@@ -109,8 +103,6 @@ void sceneryLoadFromFile(char* filepath)
     texturesValidateDefinition(&_textures);
     vegetationValidateDefinition(_vegetation);
     waterValidateDefinition(&_water);
-
-    packCloseStream(stream);
 }
 
 void scenerySetAtmosphere(AtmosphereDefinition* atmosphere)

lib_paysages/scenery.h

@@ -17,7 +17,7 @@
 #include "textures.h"
 #include "vegetation.h"
 #include "water.h"
-
+#include "pack.h"
 #include "renderer.h"
 
 #ifdef __cplusplus
@@ -27,8 +27,8 @@ extern "C" {
 void sceneryInit();
 void sceneryQuit();
 
-void scenerySaveToFile(char* filepath);
+void scenerySave(PackStream* stream);
-void sceneryLoadFromFile(char* filepath);
+void sceneryLoad(PackStream* stream);
 
 void scenerySetAtmosphere(AtmosphereDefinition* atmosphere);
 void sceneryGetAtmosphere(AtmosphereDefinition* atmosphere);