From 028c7dcfa9f1920d5fa2e573790bef40c4076275 Mon Sep 17 00:00:00 2001
From: pixel <pixel>
Date: Mon, 11 Nov 2002 20:07:41 +0000
Subject: Still working ;-)

---
 mogltk/Makefile      |  2 +-
 mogltk/glbase.cpp    |  6 ++---
 mogltk/glfont.cpp    |  2 ++
 mogltk/gltexture.cpp | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 80 insertions(+), 4 deletions(-)
 create mode 100644 mogltk/glfont.cpp
 create mode 100644 mogltk/gltexture.cpp

(limited to 'mogltk')

diff --git a/mogltk/Makefile b/mogltk/Makefile
index 510baa6..4e99e89 100755
--- a/mogltk/Makefile
+++ b/mogltk/Makefile
@@ -3,7 +3,7 @@
 CPPFLAGS=-Wall -g -O3 -mcpu=i686 -Werror -I../includes -DHAVE_ZLIB `sdl-config --cflags`
 CXX=g++
 
-OBJECTS = glbase.o engine.o
+OBJECTS = glbase.o engine.o gltexture.o glfont.o
 TARGET = mogltk.a
 
 all: ${TARGET}
diff --git a/mogltk/glbase.cpp b/mogltk/glbase.cpp
index b2512ca..0993b43 100644
--- a/mogltk/glbase.cpp
+++ b/mogltk/glbase.cpp
@@ -59,6 +59,9 @@ int mogltk::glbase::setup(int w, int h, int flags) throw(GeneralException) {
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
     
+    glEnable(GL_TEXTURE_2D);
+    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
+    
     return 0;
 }
 
@@ -81,7 +84,6 @@ void mogltk::glbase::Enter2DMode(void) {
     glPushAttrib(GL_ENABLE_BIT);
     glDisable(GL_DEPTH_TEST);
     glDisable(GL_CULL_FACE);
-    glEnable(GL_TEXTURE_2D);
     glEnable(GL_BLEND);
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     
@@ -94,8 +96,6 @@ void mogltk::glbase::Enter2DMode(void) {
     glPushMatrix();
     glLoadIdentity();
     
-    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
-    
     twoD = 1;
 }
 
diff --git a/mogltk/glfont.cpp b/mogltk/glfont.cpp
new file mode 100644
index 0000000..e98a64d
--- /dev/null
+++ b/mogltk/glfont.cpp
@@ -0,0 +1,2 @@
+#include <GL/gl.h>
+#include "glfont.h"
diff --git a/mogltk/gltexture.cpp b/mogltk/gltexture.cpp
new file mode 100644
index 0000000..0878d04
--- /dev/null
+++ b/mogltk/gltexture.cpp
@@ -0,0 +1,74 @@
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include "gltexture.h"
+#include "General.h"
+
+mogltk::gltexture::gltexture(int w, int h, bool plane) throw (GeneralException) : width(w), height(h), planar(plane) {
+    if ((BITCOUNT(w) != 1) || (BITCOUNT(h) != 1))
+	throw GeneralException("Size of the texture not a power of 2!");
+    
+    if (!(surface = SDL_CreateRGBSurface(SDL_SWSURFACE, width, height, 32,
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+	0xff000000,
+	0x00ff0000,
+	0x0000ff00,
+	0x000000ff
+#else
+	0x000000ff,
+	0x0000ff00,
+	0x00ff0000,
+	0xff000000
+#endif
+    ))) {
+	throw GeneralException("Can't create RGB Surface");
+    }
+}
+
+mogltk::gltexture::~gltexture() {
+    if (surface) {
+	SDL_FreeSurface(surface);
+    } else {
+	glDeleteTextures(1, &texture);
+    }
+}
+
+SDL_Surface * mogltk::gltexture::GetSurface() throw (GeneralException) {
+    if (!surface)
+	throw GeneralException("Texture already generated");
+    return surface;
+}
+
+void mogltk::gltexture::Generate() throw (GeneralException) {
+    if (!surface)
+	throw GeneralException("Texture already generated");
+    
+    if (planar) {
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
+    } else {
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, width, height, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);
+//	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, surface->pixels);	
+    }
+    
+    SDL_FreeSurface(surface);    
+    surface = 0;
+}
+
+void mogltk::gltexture::Bind() throw (GeneralException) {
+    if (surface)
+	throw GeneralException("Texture is not yet generated");
+    glBindTexture(GL_TEXTURE_2D, texture);
+}
+
+GLuint mogltk::gltexture::GetWidth() {
+    return width;
+}
+
+GLuint mogltk::gltexture::GetHeight() {
+    return height;
+}
-- 
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