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scrcpy/app/src/tiny_xpm.c

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Separate multi-words filenames by '_' Rename foobar.ext to foo_bar.ext. <https://github.com/Genymobile/scrcpy/pull/226#discussion_r209454865>
2018-08-15 23:01:54 +08:00
#include "tiny_xpm.h"
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
#include <stdbool.h>
#include <stdint.h>
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
#include <stdio.h>
#include <stdlib.h>
Define macros wrappers for logs Use macros to wrap SDL_Log* functions with the "application" category.
2018-02-13 17:10:18 +08:00
#include "log.h"
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
struct index {
char c;
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
uint32_t color;
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
};
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
static bool
find_color(struct index *index, int len, char c, uint32_t *color) {
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
// there are typically very few color, so it's ok to iterate over the array
for (int i = 0; i < len; ++i) {
if (index[i].c == c) {
*color = index[i].color;
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
return true;
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
}
}
*color = 0;
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
return false;
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
}
// We encounter some problems with SDL2_image on MSYS2 (Windows),
// so here is our own XPM parsing not to depend on SDL_image.
//
// We do not hardcode the binary image to keep some flexibility to replace the
// icon easily (just by replacing icon.xpm).
//
// Parameter is not "const char *" because XPM formats are generally stored in a
// (non-const) "char *"
Update code style Limit source code to 80 chars, and declare functions return type and modifiers on a separate line. This allows to avoid very long lines, and all function names are aligned. (We do this on VLC, and I like it.)
2019-03-03 03:09:56 +08:00
SDL_Surface *
read_xpm(char *xpm[]) {
Change the window icon color in debug mode To highlight the debug/release mode of the running application, use a different window icon color in debug mode.
2018-02-07 18:47:34 +08:00
#if SDL_ASSERT_LEVEL >= 2
// patch the XPM to change the icon color in debug mode
xpm[2] = ". c #CC00CC";
#endif
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
char *endptr;
// *** No error handling, assume the XPM source is valid ***
// (it's in our source repo)
// Assertions are only checked in debug
Replace Uint32 by int to fix warnings in tinyxpm
2018-08-12 21:27:58 +08:00
int width = strtol(xpm[0], &endptr, 10);
int height = strtol(endptr + 1, &endptr, 10);
int colors = strtol(endptr + 1, &endptr, 10);
int chars = strtol(endptr + 1, &endptr, 10);
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
// sanity checks
Replace Uint32 by int to fix warnings in tinyxpm
2018-08-12 21:27:58 +08:00
SDL_assert(0 <= width && width < 256);
SDL_assert(0 <= height && height < 256);
SDL_assert(0 <= colors && colors < 256);
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
SDL_assert(chars == 1); // this implementation does not support more
// init index
struct index index[colors];
for (int i = 0; i < colors; ++i) {
const char *line = xpm[1+i];
index[i].c = line[0];
SDL_assert(line[1] == '\t');
SDL_assert(line[2] == 'c');
SDL_assert(line[3] == ' ');
if (line[4] == '#') {
index[i].color = 0xff000000 | strtol(&line[5], &endptr, 0x10);
SDL_assert(*endptr == '\0');
} else {
SDL_assert(!strcmp("None", &line[4]));
index[i].color = 0;
}
}
// parse image
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
uint32_t *pixels = SDL_malloc(4 * width * height);
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
if (!pixels) {
Define macros wrappers for logs Use macros to wrap SDL_Log* functions with the "application" category.
2018-02-13 17:10:18 +08:00
LOGE("Could not allocate icon memory");
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
return NULL;
}
for (int y = 0; y < height; ++y) {
const char *line = xpm[1 + colors + y];
for (int x = 0; x < width; ++x) {
char c = line[x];
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
uint32_t color;
bool color_found = find_color(index, colors, c, &color);
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
SDL_assert(color_found);
pixels[y * width + x] = color;
}
}
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
uint32_t amask = 0x000000ff;
uint32_t rmask = 0x0000ff00;
uint32_t gmask = 0x00ff0000;
uint32_t bmask = 0xff000000;
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
#else // little endian, like x86
Replace SDL types by C99 standard types Scrcpy is a C11 project. Use the C99 standard types instead of the SDL-specific types: SDL_bool -> bool SintXX -> intXX_t UintXX -> uintXX_t
2019-03-03 06:52:22 +08:00
uint32_t amask = 0xff000000;
uint32_t rmask = 0x00ff0000;
uint32_t gmask = 0x0000ff00;
uint32_t bmask = 0x000000ff;
Parse XPM without SDL_image We encounter some problems with SDL2_image on MSYS2 (Windows), so implement our own XPM parsing which does not depend on SDL_image. The input XPM is considered safe (it's in our source repo), so do not check XPM format errors. This implies that read_xpm() is not safe to call on any unsafe input. Although less straightforward, use SDL_CreateRGBSurfaceFrom() instead of SDL_CreateRGBSurfaceWithFormatFrom() because it is available with SDL versions older than 2.0.5.
2018-02-06 00:29:40 +08:00
#endif
SDL_Surface *surface = SDL_CreateRGBSurfaceFrom(pixels,
width, height,
32, 4 * width,
rmask, gmask, bmask, amask);
// make the surface own the raw pixels
surface->flags &= ~SDL_PREALLOC;
return surface;
}
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