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Faster PNG compression, enabled separate data and function sections.

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This commit is contained in:
Wolfvak 2018-03-30 11:47:32 -03:00 committed by d0k3
parent c6e3c0ee30
commit 8c121ae1d3
3 changed files with 21 additions and 17 deletions
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2
Makefile
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@ -32,7 +32,7 @@ export ASFLAGS := -g -x assembler-with-cpp $(INCLUDE)
export CFLAGS := -DDBUILTS="\"$(DBUILTS)\"" -DDBUILTL="\"$(DBUILTL)\"" -DVERSION="\"$(VERSION)\"" -DFLAVOR="\"$(FLAVOR)\"" \
-g -O2 -Wall -Wextra -Wpedantic -Wcast-align -Wno-main \
-fomit-frame-pointer -ffast-math -std=gnu11 \
-Wno-unused-function $(INCLUDE)
-Wno-unused-function $(INCLUDE) -ffunction-sections -fdata-sections
export LDFLAGS := -Tlink.ld -nostartfiles -Wl,--gc-sections,-z,max-page-size=512
ELF := arm9/arm9.elf arm11/arm11.elf

22
arm9/source/common/screenshot.c
View File

@ -12,7 +12,7 @@ void CreateScreenshot() {
char filename[64];
DsTime dstime;
fvx_rmkdir(OUTPUT_PATH);
get_dstime(&dstime);
snprintf(filename, 64, OUTPUT_PATH "/snap_%02X%02X%02X%02X%02X%02X.png",
@ -45,18 +45,18 @@ void CreateScreenshot() {
png_data = PNG_Compress(buffer, snap_width, snap_height, &png_size);
if (png_data && png_size)
if (png_data && png_size) {
fvx_qwrite(filename, png_data, 0, png_size, NULL);
else
ShowPrompt(false, "Failed to write screenshot!");
// "snap effect"
memcpy(buffer_b, BOT_SCREEN, SCREEN_SIZE_BOT);
memcpy(buffer_t, TOP_SCREEN, SCREEN_SIZE_TOP);
memset(BOT_SCREEN, 0, SCREEN_SIZE_BOT);
memset(TOP_SCREEN, 0, SCREEN_SIZE_TOP);
memcpy(BOT_SCREEN, buffer_b, SCREEN_SIZE_BOT);
memcpy(TOP_SCREEN, buffer_t, SCREEN_SIZE_TOP);
// "snap effect"
memcpy(buffer_b, BOT_SCREEN, SCREEN_SIZE_BOT);
memcpy(buffer_t, TOP_SCREEN, SCREEN_SIZE_TOP);
memset(BOT_SCREEN, 0, SCREEN_SIZE_BOT);
memset(TOP_SCREEN, 0, SCREEN_SIZE_TOP);
memcpy(BOT_SCREEN, buffer_b, SCREEN_SIZE_BOT);
memcpy(TOP_SCREEN, buffer_t, SCREEN_SIZE_TOP);
}
// what to do on error...?
free(buffer);
if (png_data) free(png_data);

14
arm9/source/lodepng/lodepng.c
View File

@ -23,6 +23,10 @@ freely, subject to the following restrictions:
distribution.
*/
/**
Modified version by Wolfvak for github.com/d0k3/GodMode9 (changed encoder default settings)
*/
/*
The manual and changelog are in the header file "lodepng.h"
Rename this file to lodepng.cpp to use it for C++, or to lodepng.c to use it for C.
@ -2268,7 +2272,7 @@ static unsigned zlib_compress(unsigned char** out, size_t* outsize, const unsign
#ifdef LODEPNG_COMPILE_ENCODER
/*this is a good tradeoff between speed and compression ratio*/
#define DEFAULT_WINDOWSIZE 2048
#define DEFAULT_WINDOWSIZE 64
void lodepng_compress_settings_init(LodePNGCompressSettings* settings)
{
@ -2276,16 +2280,16 @@ void lodepng_compress_settings_init(LodePNGCompressSettings* settings)
settings->btype = 2;
settings->use_lz77 = 1;
settings->windowsize = DEFAULT_WINDOWSIZE;
settings->minmatch = 3;
settings->nicematch = 128;
settings->lazymatching = 1;
settings->minmatch = 6;
settings->nicematch = 32;
settings->lazymatching = 0;
settings->custom_zlib = 0;
settings->custom_deflate = 0;
settings->custom_context = 0;
}
const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 3, 128, 1, 0, 0, 0};
const LodePNGCompressSettings lodepng_default_compress_settings = {2, 1, DEFAULT_WINDOWSIZE, 6, 32, 0, 0, 0, 0};
#endif /*LODEPNG_COMPILE_ENCODER*/