summaryrefslogtreecommitdiff
path: root/src/normalopenglgraphics.h
blob: 9101fdaf47e40ac96a12204890fe3312dfa400d9 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2012  The ManaPlus Developers
 *
 *  This file is part of The ManaPlus Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef OPENGLGRAPHICS_H
#define OPENGLGRAPHICS_H

#include "main.h"
#ifdef USE_OPENGL

#include "localconsts.h"
#include "graphics.h"

#include "resources/fboinfo.h"

//#define NO_SDL_GLEXT
#define GL_GLEXT_PROTOTYPES 1

#include <SDL_opengl.h>
#include <GL/glext.h>

#include <set>

class NormalOpenGLGraphicsVertexes;

class NormalOpenGLGraphics final : public Graphics
{
    public:
        NormalOpenGLGraphics();

        ~NormalOpenGLGraphics();

        bool setVideoMode(const int w, const int h, const int bpp,
                          const bool fs, const bool hwaccel,
                          const bool resize, const bool noFrame) override;


        /**
         * Draws a resclaled version of the image
         */
        bool drawRescaledImage(Image *const image, int srcX, int srcY,
                               int dstX, int dstY,
                               const int width, const int height,
                               const int desiredWidth, const int desiredHeight,
                               const bool useColor) override;

        /**
         * Used to get the smooth rescale option over the standard function.
         */
        bool drawRescaledImage(Image *const image, int srcX, int srcY,
                               int dstX, int dstY,
                               const int width, const int height,
                               const int desiredWidth, const int desiredHeight,
                               const bool useColor, bool smooth);

        void drawImagePattern(const Image *const image,
                              const int x, const int y,
                              const int w, const int h) override;

        /**
         * Draw a pattern based on a rescaled version of the given image...
         */
        void drawRescaledImagePattern(const Image *const image,
                                      const int x, const int y,
                                      const int w, const int h,
                                      const int scaledWidth,
                                      const int scaledHeight) override;

        void calcImagePattern(GraphicsVertexes *const vert,
                              const Image *const image,
                              const int x, const int y,
                              const int w, const int h) override;

        void calcTile(ImageVertexes *const vert, const Image *const image,
                      int x, int y) override;

        void drawTile(ImageVertexes *const vert) override;

        void drawImagePattern2(GraphicsVertexes *const vert,
                               const Image *const image) override;

        void updateScreen() override;

        void _beginDraw();

        void _endDraw();

        bool pushClipArea(gcn::Rectangle area);

        void popClipArea();

        void setColor(const gcn::Color &color);

        void drawPoint(int x, int y);

        void drawLine(int x1, int y1, int x2, int y2);

        void drawRectangle(const gcn::Rectangle &rect, bool filled);

        void drawRectangle(const gcn::Rectangle &rect);

        void fillRectangle(const gcn::Rectangle &rect);

        void setTargetPlane(int width, int height);

        inline void drawQuadArrayfi(int size);

        inline void drawQuadArrayfi(GLint *intVertArray,
                                    GLfloat *floatTexArray,
                                    const int size);

        inline void drawQuadArrayii(int size);

        inline void drawQuadArrayii(GLint *intVertArray,
                                    GLint *intTexArray,
                                    const int size);

        inline void drawLineArrayi(int size);

        inline void drawLineArrayf(int size);

        inline void drawVertexes(NormalOpenGLGraphicsVertexes &ogl);

        void initArrays() override;

        static void dumpSettings();

        /**
         * Takes a screenshot and returns it as SDL surface.
         */
        SDL_Surface *getScreenshot() override;

        void prepareScreenshot() override;

        bool drawNet(const int x1, const int y1, const int x2, const int y2,
                     const int width, const int height) override;

        int getMemoryUsage();

        void updateTextureFormat();

        static void bindTexture(GLenum target, GLuint texture);

        static GLuint mLastImage;

    protected:
        bool drawImage2(const Image *const image,
                        int srcX, int srcY,
                        int dstX, int dstY,
                        const int width, const int height,
                        const bool useColor) override;

        void setTexturingAndBlending(bool enable);

        void logString(const char *format, GLenum num);

        void updateMemoryInfo();

        void debugBindTexture(const Image *image);

    private:
        void inline setColorAlpha(float alpha);

        void inline restoreColor();

        GLfloat *mFloatTexArray;
        GLint *mIntTexArray;
        GLint *mIntVertArray;
        bool mAlpha;
        bool mTexture;

        bool mIsByteColor;
        gcn::Color mByteColor;
        float mFloatColor;
        int mMaxVertices;
        bool mColorAlpha;
        FBOInfo mFbo;
#ifdef DEBUG_BIND_TEXTURE
        std::string mOldTexture;
        unsigned mOldTextureId;
#endif
};
#endif

extern unsigned int vertexBufSize;

#endif