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GCC Code Coverage Report

Directory:	src/		Exec	Total	Coverage
File:	src/resources/imagehelper.cpp	Lines:	61	91	67.0 %
Date:	2021-03-17	Branches:	13	29	44.8 %


/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  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/>.
 */

#include "resources/imagehelper.h"

#include "logger.h"

#include "resources/dye/dye.h"
#include "resources/dye/dyepalette.h"

#include "utils/sdlcheckutils.h"

PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#include <SDL_image.h>
PRAGMA48(GCC diagnostic pop)

#include "debug.h"

#ifndef SDL_BIG_ENDIAN
#error missing SDL_endian.h
#endif  // SDL_BYTEORDER

ImageHelper *imageHelper = nullptr;
ImageHelper *surfaceImageHelper = nullptr;

bool ImageHelper::mEnableAlpha = true;
RenderType ImageHelper::mUseOpenGL = RENDER_SOFTWARE;

Image *ImageHelper::load(SDL_RWops *const rw)
{
    SDL_Surface *const tmpImage = loadPng(rw);
    if (tmpImage == nullptr)
    {
        logger->log("Error, image load failed: %s", SDL_GetError());
        return nullptr;
    }

    Image *const image = loadSurface(tmpImage);

    MSDL_FreeSurface(tmpImage);
    return image;
}

Image *ImageHelper::load(SDL_RWops *const rw, Dye const &dye)
{
    BLOCK_START("ImageHelper::load")
    SDL_Surface *const tmpImage = loadPng(rw);
    if (tmpImage == nullptr)
    {
        logger->log("Error, image load failed: %s", SDL_GetError());
        BLOCK_END("ImageHelper::load")
        return nullptr;
    }

    SDL_PixelFormat rgba;
    rgba.palette = nullptr;
    rgba.BitsPerPixel = 32;
    rgba.BytesPerPixel = 4;

#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rgba.Rmask = 0x000000FFU;
    rgba.Gmask = 0x0000FF00U;
    rgba.Bmask = 0x00FF0000U;
    rgba.Amask = 0xFF000000U;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    rgba.Rmask = 0xFF000000U;
    rgba.Gmask = 0x00FF0000U;
    rgba.Bmask = 0x0000FF00U;
    rgba.Amask = 0x000000FFU;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    SDL_Surface *const surf = MSDL_ConvertSurface(
        tmpImage, &rgba, SDL_SWSURFACE);
    MSDL_FreeSurface(tmpImage);

    if (surf == nullptr)
        return nullptr;

    uint32_t *const pixels = static_cast<uint32_t *>(surf->pixels);
    const int type = dye.getType();

    switch (type)
    {
        case 1:
        {
            const DyePalette *const pal = dye.getSPalete();
            if (pal != nullptr)
                DYEPALETTEP(pal, SColor)(pixels, surf->w * surf->h);
            break;
        }
        case 2:
        {
            const DyePalette *const pal = dye.getAPalete();
            if (pal != nullptr)
                DYEPALETTEP(pal, AColor)(pixels, surf->w * surf->h);
            break;
        }
        case 0:
        default:
        {
            dye.normalDye(pixels, surf->w * surf->h);
            break;
        }
    }

    Image *const image = loadSurface(surf);
    MSDL_FreeSurface(surf);
    BLOCK_END("ImageHelper::load")
    return image;
}

SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface *const tmpImage)
{
    if (tmpImage == nullptr)
        return nullptr;
    SDL_PixelFormat RGBAFormat;
    RGBAFormat.palette = nullptr;
#ifndef USE_SDL2
    RGBAFormat.colorkey = 0;
    RGBAFormat.alpha = 0;
#endif  // USE_SDL2

    RGBAFormat.BitsPerPixel = 32;
    RGBAFormat.BytesPerPixel = 4;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    RGBAFormat.Rmask = 0xFF000000U;
    RGBAFormat.Rshift = 0;
    RGBAFormat.Rloss = 0;
    RGBAFormat.Gmask = 0x00FF0000U;
    RGBAFormat.Gshift = 8;
    RGBAFormat.Gloss = 0;
    RGBAFormat.Bmask = 0x0000FF00U;
    RGBAFormat.Bshift = 16;
    RGBAFormat.Bloss = 0;
    RGBAFormat.Amask = 0x000000FFU;
    RGBAFormat.Ashift = 24;
    RGBAFormat.Aloss = 0;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    RGBAFormat.Rmask = 0x000000FFU;
    RGBAFormat.Rshift = 24;
    RGBAFormat.Rloss = 0;
    RGBAFormat.Gmask = 0x0000FF00U;
    RGBAFormat.Gshift = 16;
    RGBAFormat.Gloss = 0;
    RGBAFormat.Bmask = 0x00FF0000U;
    RGBAFormat.Bshift = 8;
    RGBAFormat.Bloss = 0;
    RGBAFormat.Amask = 0xFF000000U;
    RGBAFormat.Ashift = 0;
    RGBAFormat.Aloss = 0;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    return MSDL_ConvertSurface(tmpImage, &RGBAFormat, SDL_SWSURFACE);
}

void ImageHelper::dumpSurfaceFormat(const SDL_Surface *const image)
{
    if (image == nullptr)
        return;
    if (image->format != nullptr)
    {
        const SDL_PixelFormat * const format = image->format;
        logger->log("Bytes per pixel: %d", format->BytesPerPixel);
#ifdef USE_SDL2
        logger->log("Format: %u", format->format);
#else  // USE_SDL2

        logger->log("Alpha: %d", format->alpha);
        logger->log("Color key: %u", format->colorkey);
#endif  // USE_SDL2

        logger->log("Loss: %02x, %02x, %02x, %02x",
            CAST_U32(format->Rloss),
            CAST_U32(format->Gloss),
            CAST_U32(format->Bloss),
            CAST_U32(format->Aloss));
        logger->log("Shift: %02x, %02x, %02x, %02x",
            CAST_U32(format->Rshift),
            CAST_U32(format->Gshift),
            CAST_U32(format->Bshift),
            CAST_U32(format->Ashift));
        logger->log("Mask: %08x, %08x, %08x, %08x", format->Rmask,
            format->Gmask, format->Bmask, format->Amask);
    }
    logger->log("Flags: %u", image->flags);
    logger->log("Pitch: %d", CAST_S32(image->pitch));
#ifndef USE_SDL2
    logger->log("Offset: %d", image->offset);
#endif  // USE_SDL2
}

SDL_Surface *ImageHelper::loadPng(SDL_RWops *const rw)
{
    if (rw == nullptr)
        return nullptr;

    if (IMG_isPNG(rw) != 0)
    {
        SDL_Surface *const tmpImage = MIMG_LoadPNG_RW(rw);
        SDL_RWclose(rw);
        return tmpImage;
    }

    if (IMG_isJPG(rw) != 0)
    {
        SDL_Surface *const tmpImage = MIMG_LoadJPG_RW(rw);
        SDL_RWclose(rw);
        return tmpImage;
    }

    logger->log("Error, image is not png");
    SDL_RWclose(rw);
    return nullptr;
}

SDL_Surface *ImageHelper::create32BitSurface(int width,
                                             int height) const
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    const uint32_t rmask = 0xff000000U;
    const uint32_t gmask = 0x00ff0000U;
    const uint32_t bmask = 0x0000ff00U;
    const uint32_t amask = 0x000000ffU;
#else  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    const uint32_t rmask = 0x000000ffU;
    const uint32_t gmask = 0x0000ff00U;
    const uint32_t bmask = 0x00ff0000U;
    const uint32_t amask = 0xff000000U;
#endif  // SDL_BYTEORDER == SDL_BIG_ENDIAN

    return MSDL_CreateRGBSurface(SDL_SWSURFACE,
        width, height, 32, rmask, gmask, bmask, amask);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/*
2			* The ManaPlus Client
3			* Copyright (C) 2004-2009 The Mana World Development Team
4			* Copyright (C) 2009-2010 The Mana Developers
5			* Copyright (C) 2011-2019 The ManaPlus Developers
6			* Copyright (C) 2019-2021 Andrei Karas
7			*
8			* This file is part of The ManaPlus Client.
9			*
10			* This program is free software; you can redistribute it and/or modify
11			* it under the terms of the GNU General Public License as published by
12			* the Free Software Foundation; either version 2 of the License, or
13			* any later version.
14			*
15			* This program is distributed in the hope that it will be useful,
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18			* GNU General Public License for more details.
19			*
20			* You should have received a copy of the GNU General Public License
21			* along with this program. If not, see <http://www.gnu.org/licenses/>.
22			*/
23
24			#include "resources/imagehelper.h"
25
26			#include "logger.h"
27
28			#include "resources/dye/dye.h"
29			#include "resources/dye/dyepalette.h"
30
31			#include "utils/sdlcheckutils.h"
32
33			PRAGMA48(GCC diagnostic push)
34			PRAGMA48(GCC diagnostic ignored "-Wshadow")
35			#include <SDL_image.h>
36			PRAGMA48(GCC diagnostic pop)
37
38			#include "debug.h"
39
40			#ifndef SDL_BIG_ENDIAN
41			#error missing SDL_endian.h
42			#endif // SDL_BYTEORDER
43
44			ImageHelper *imageHelper = nullptr;
45			ImageHelper *surfaceImageHelper = nullptr;
46
47			bool ImageHelper::mEnableAlpha = true;
48			RenderType ImageHelper::mUseOpenGL = RENDER_SOFTWARE;
49
50		1545	Image ImageHelper::load(SDL_RWops const rw)
51			{
52		1545	SDL_Surface *const tmpImage = loadPng(rw);
53	✗✓	1545	if (tmpImage == nullptr)
54			{
55			logger->log("Error, image load failed: %s", SDL_GetError());
56			return nullptr;
57			}
58
59		1545	Image *const image = loadSurface(tmpImage);
60
61		1545	MSDL_FreeSurface(tmpImage);
62		1545	return image;
63			}
64
65		5	Image ImageHelper::load(SDL_RWops const rw, Dye const &dye)
66			{
67			BLOCK_START("ImageHelper::load")
68		5	SDL_Surface *const tmpImage = loadPng(rw);
69	✗✓	5	if (tmpImage == nullptr)
70			{
71			logger->log("Error, image load failed: %s", SDL_GetError());
72			BLOCK_END("ImageHelper::load")
73			return nullptr;
74			}
75
76			SDL_PixelFormat rgba;
77		5	rgba.palette = nullptr;
78		5	rgba.BitsPerPixel = 32;
79		5	rgba.BytesPerPixel = 4;
80
81			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
82			rgba.Rmask = 0x000000FFU;
83			rgba.Gmask = 0x0000FF00U;
84			rgba.Bmask = 0x00FF0000U;
85			rgba.Amask = 0xFF000000U;
86			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
87
88		5	rgba.Rmask = 0xFF000000U;
89		5	rgba.Gmask = 0x00FF0000U;
90		5	rgba.Bmask = 0x0000FF00U;
91		5	rgba.Amask = 0x000000FFU;
92			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
93
94		5	SDL_Surface *const surf = MSDL_ConvertSurface(
95			tmpImage, &rgba, SDL_SWSURFACE);
96		5	MSDL_FreeSurface(tmpImage);
97
98	✓✗	5	if (surf == nullptr)
99			return nullptr;
100
101		5	uint32_t const pixels = static_cast<uint32_t >(surf->pixels);
102		5	const int type = dye.getType();
103
104	✓✓✓	5	switch (type)
105			{
106			case 1:
107			{
108		3	const DyePalette *const pal = dye.getSPalete();
109	✓✗	3	if (pal != nullptr)
110	✗✓	3	DYEPALETTEP(pal, SColor)(pixels, surf->w * surf->h);
111			break;
112			}
113			case 2:
114			{
115		1	const DyePalette *const pal = dye.getAPalete();
116	✓✗	1	if (pal != nullptr)
117	✗✓	1	DYEPALETTEP(pal, AColor)(pixels, surf->w * surf->h);
118			break;
119			}
120			case 0:
121			default:
122			{
123		1	dye.normalDye(pixels, surf->w * surf->h);
124			break;
125			}
126			}
127
128		5	Image *const image = loadSurface(surf);
129		5	MSDL_FreeSurface(surf);
130			BLOCK_END("ImageHelper::load")
131			return image;
132			}
133
134		137	SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface *const tmpImage)
135			{
136	✓✗	137	if (tmpImage == nullptr)
137			return nullptr;
138			SDL_PixelFormat RGBAFormat;
139		137	RGBAFormat.palette = nullptr;
140			#ifndef USE_SDL2
141			RGBAFormat.colorkey = 0;
142			RGBAFormat.alpha = 0;
143			#endif // USE_SDL2
144
145		137	RGBAFormat.BitsPerPixel = 32;
146		137	RGBAFormat.BytesPerPixel = 4;
147			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
148			RGBAFormat.Rmask = 0xFF000000U;
149			RGBAFormat.Rshift = 0;
150			RGBAFormat.Rloss = 0;
151			RGBAFormat.Gmask = 0x00FF0000U;
152			RGBAFormat.Gshift = 8;
153			RGBAFormat.Gloss = 0;
154			RGBAFormat.Bmask = 0x0000FF00U;
155			RGBAFormat.Bshift = 16;
156			RGBAFormat.Bloss = 0;
157			RGBAFormat.Amask = 0x000000FFU;
158			RGBAFormat.Ashift = 24;
159			RGBAFormat.Aloss = 0;
160			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
161
162		137	RGBAFormat.Rmask = 0x000000FFU;
163		137	RGBAFormat.Rshift = 24;
164		137	RGBAFormat.Rloss = 0;
165		137	RGBAFormat.Gmask = 0x0000FF00U;
166		137	RGBAFormat.Gshift = 16;
167		137	RGBAFormat.Gloss = 0;
168		137	RGBAFormat.Bmask = 0x00FF0000U;
169		137	RGBAFormat.Bshift = 8;
170		137	RGBAFormat.Bloss = 0;
171		137	RGBAFormat.Amask = 0xFF000000U;
172		137	RGBAFormat.Ashift = 0;
173		137	RGBAFormat.Aloss = 0;
174			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
175
176		137	return MSDL_ConvertSurface(tmpImage, &RGBAFormat, SDL_SWSURFACE);
177			}
178
179			void ImageHelper::dumpSurfaceFormat(const SDL_Surface *const image)
180			{
181			if (image == nullptr)
182			return;
183			if (image->format != nullptr)
184			{
185			const SDL_PixelFormat * const format = image->format;
186			logger->log("Bytes per pixel: %d", format->BytesPerPixel);
187			#ifdef USE_SDL2
188			logger->log("Format: %u", format->format);
189			#else // USE_SDL2
190
191			logger->log("Alpha: %d", format->alpha);
192			logger->log("Color key: %u", format->colorkey);
193			#endif // USE_SDL2
194
195			logger->log("Loss: %02x, %02x, %02x, %02x",
196			CAST_U32(format->Rloss),
197			CAST_U32(format->Gloss),
198			CAST_U32(format->Bloss),
199			CAST_U32(format->Aloss));
200			logger->log("Shift: %02x, %02x, %02x, %02x",
201			CAST_U32(format->Rshift),
202			CAST_U32(format->Gshift),
203			CAST_U32(format->Bshift),
204			CAST_U32(format->Ashift));
205			logger->log("Mask: %08x, %08x, %08x, %08x", format->Rmask,
206			format->Gmask, format->Bmask, format->Amask);
207			}
208			logger->log("Flags: %u", image->flags);
209			logger->log("Pitch: %d", CAST_S32(image->pitch));
210			#ifndef USE_SDL2
211			logger->log("Offset: %d", image->offset);
212			#endif // USE_SDL2
213			}
214
215		1550	SDL_Surface ImageHelper::loadPng(SDL_RWops const rw)
216			{
217	✓✗	1550	if (rw == nullptr)
218			return nullptr;
219
220	✓✗	1550	if (IMG_isPNG(rw) != 0)
221			{
222		1550	SDL_Surface *const tmpImage = MIMG_LoadPNG_RW(rw);
223		1550	SDL_RWclose(rw);
224		1550	return tmpImage;
225			}
226
227			if (IMG_isJPG(rw) != 0)
228			{
229			SDL_Surface *const tmpImage = MIMG_LoadJPG_RW(rw);
230			SDL_RWclose(rw);
231			return tmpImage;
232			}
233
234			logger->log("Error, image is not png");
235			SDL_RWclose(rw);
236			return nullptr;
237			}
238
239		130	SDL_Surface *ImageHelper::create32BitSurface(int width,
240			int height) const
241			{
242			#if SDL_BYTEORDER == SDL_BIG_ENDIAN
243			const uint32_t rmask = 0xff000000U;
244			const uint32_t gmask = 0x00ff0000U;
245			const uint32_t bmask = 0x0000ff00U;
246			const uint32_t amask = 0x000000ffU;
247			#else // SDL_BYTEORDER == SDL_BIG_ENDIAN
248
249		130	const uint32_t rmask = 0x000000ffU;
250		130	const uint32_t gmask = 0x0000ff00U;
251		130	const uint32_t bmask = 0x00ff0000U;
252		130	const uint32_t amask = 0xff000000U;
253			#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN
254
255		130	return MSDL_CreateRGBSurface(SDL_SWSURFACE,
256			width, height, 32, rmask, gmask, bmask, amask);
257			}