EMI: Implement Specialty Textures in OpenGL

engines/grim/emi/lua_v2.cpp

@@ -33,6 +33,7 @@
 
 #include "engines/grim/set.h"
 #include "engines/grim/grim.h"
+#include "engines/grim/gfx_base.h"
 
 #include "engines/grim/movie/movie.h"
 
@@ -105,15 +106,14 @@ void Lua_V2::MakeScreenTextures() {
 	lua_Object indexObj = lua_getparam(1);
 
 	if (!lua_isnil(indexObj) && lua_isnumber(indexObj)) {
-		int index = (int)lua_getnumber(indexObj);
+		/*int index = (int)lua_getnumber(indexObj);*/
-		warning("Lua_V2::MakeScreenTextures, index: %d", index);
+		// The index does not seem to matter
-		// FIXME: implement missing function
+
-//		if (func(index)) {
+		g_driver->createSpecialtyTextures();
 		lua_pushnumber(1.0);
-			return;
+	} else {
-//		}
-	}
 		lua_pushnil();
+	}
 }
 
 void Lua_V2::LoadBundle() {

engines/grim/emi/modelemi.cpp

@@ -247,7 +247,7 @@ void EMIModel::prepareTextures() {
 		if (!_texNames[i].contains("specialty"))
 			_mats[i] = g_resourceloader->loadMaterial(_texNames[i].c_str(), NULL);
 		else
-			_mats[i] = NULL;
+			_mats[i] = g_driver->getSpecialtyTexture(_texNames[i][9] - '0');
 	}
 }
 

engines/grim/gfx_base.cpp

@@ -87,4 +87,20 @@ GfxBase *CreateGfxOpenGL() {
 }
 #endif // USE_OPENGL
 
+void SpecialtyMaterial::select() const {
+	if (_texture) {
+		g_driver->selectMaterial(_texture);
+	}
+}
+
+void SpecialtyMaterial::create(const char *data, int width, int height) {
+	delete _texture;
+	_texture = new Texture();
+	_texture->_width = width;
+	_texture->_height = height;
+	_texture->_bpp = 4;
+	_texture->_colorFormat = BM_RGBA;
+	g_driver->createMaterial(_texture, data, NULL);
+}
+
 }

engines/grim/gfx_base.h

@@ -27,6 +27,8 @@
 
 #include "graphics/pixelformat.h"
 
+#include "engines/grim/material.h"
+
 namespace Graphics {
 	struct Surface;
 }
@@ -52,6 +54,15 @@ struct Sprite;
 class Light;
 class Texture;
 
+class SpecialtyMaterial : public Material {
+public:
+	SpecialtyMaterial() { _texture = NULL; }
+	~SpecialtyMaterial() { delete _texture; }
+	void create(const char *data, int width, int height);
+	virtual void select() const;
+	Texture *_texture;
+};
+
 /**
  * The Color-formats used for bitmaps in Grim Fandango/Escape From Monkey Island
  */
@@ -237,6 +248,9 @@ public:
 	virtual void selectCleanBuffer() {}
 	virtual void clearCleanBuffer() {}
 
+	virtual void createSpecialtyTextures() = 0;
+	virtual Material *getSpecialtyTexture(int n) { return &_specialty[n]; }
+
 protected:
 	static const int _gameHeight = 480;
 	static const int _gameWidth = 640;
@@ -251,6 +265,7 @@ protected:
 	bool _renderZBitmaps;
 	bool _shadowModeActive;
 	Graphics::PixelFormat _pixelFormat;
+	SpecialtyMaterial _specialty[8];
 };
 
 // Factory-like functions:

engines/grim/gfx_opengl.cpp

@@ -1587,6 +1587,37 @@ void GfxOpenGL::drawPolygon(PrimitiveObject *primitive) {
 	glEnable(GL_LIGHTING);
 }
 
+void GfxOpenGL::createSpecialtyTextures() {
+	//make a buffer big enough to hold any of the textures
+	char *buffer = new char[256*256*4];
+
+	glReadPixels(0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[0].create(buffer, 256, 256);
+
+	glReadPixels(256, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[1].create(buffer, 256, 256);
+
+	glReadPixels(512, 0, 128, 128, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[2].create(buffer, 128, 128);
+
+	glReadPixels(512, 128, 128, 128, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[3].create(buffer, 128, 128);
+
+	glReadPixels(0, 256, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[4].create(buffer, 256, 256);
+
+	glReadPixels(256, 256, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[5].create(buffer, 256, 256);
+
+	glReadPixels(512, 256, 128, 128, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[6].create(buffer, 128, 128);
+
+	glReadPixels(512, 384, 128, 128, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+	_specialty[7].create(buffer, 128, 128);
+
+	delete[] buffer;
+}
+
 } // end of namespace Grim
 
 #endif

engines/grim/gfx_opengl.h

@@ -120,6 +120,8 @@ public:
 	void drawMovieFrame(int offsetX, int offsetY);
 	void releaseMovieFrame();
 
+	void createSpecialtyTextures();
+
 protected:
 	void drawDepthBitmap(int x, int y, int w, int h, char *data);
 private:

engines/grim/gfx_tinygl.h

@@ -117,6 +117,8 @@ public:
 	void selectCleanBuffer();
 	void clearCleanBuffer();
 
+	void createSpecialtyTextures() { };
+
 protected:
 
 private:

engines/grim/material.cpp

@@ -238,6 +238,10 @@ Material::Material(const Common::String &filename, Common::SeekableReadStream *d
 	_data = MaterialData::getMaterialData(filename, data, cmap);
 }
 
+Material::Material() :
+		Object(), _currImage(0), _data(NULL) {
+}
+
 void Material::reload(CMap *cmap) {
 	Common::String fname = _data->_fname;
 	--_data->_refCount;
@@ -265,10 +269,12 @@ void Material::select() const {
 }
 
 Material::~Material() {
+	if (_data) {
 		--_data->_refCount;
 		if (_data->_refCount < 1) {
 			delete _data;
 		}
+	}
 }
 
 void Material::setActiveTexture(int n) {

engines/grim/material.h

@@ -66,7 +66,7 @@ public:
 
 	void reload(CMap *cmap);
 	// Load this texture into the GL context
-	void select() const;
+	virtual void select() const;
 
 	// Set which image in an animated texture to use
 	void setActiveTexture(int n);
@@ -77,7 +77,10 @@ public:
 	const Common::String &getFilename() const;
 	MaterialData *getData() const;
 
-	~Material();
+	virtual ~Material();
+
+protected:
+	Material();
 
 private:
 	MaterialData *_data;