Kristian Høgsberg
13 years ago
parent
bcacef19b0
commit
f02a649a3c
@ -1,5 +1,9 @@ |
||||
libconfig_parser_la_LIBADD = $(IMAGE_LIBS)
|
||||
AM_CPPFLAGS = $(IMAGE_CFLAGS)
|
||||
|
||||
noinst_LTLIBRARIES = libconfig-parser.la
|
||||
libconfig_parser_la_SOURCES = \
|
||||
config-parser.c \
|
||||
option-parser.c \
|
||||
image-loader.c \
|
||||
config-parser.h
|
||||
|
||||
@ -0,0 +1,379 @@ |
||||
/*
|
||||
* Copyright © 2008-2012 Kristian Høgsberg |
||||
* Copyright © 2012 Intel Corporation |
||||
* |
||||
* Permission to use, copy, modify, distribute, and sell this software and its |
||||
* documentation for any purpose is hereby granted without fee, provided that |
||||
* the above copyright notice appear in all copies and that both that copyright |
||||
* notice and this permission notice appear in supporting documentation, and |
||||
* that the name of the copyright holders not be used in advertising or |
||||
* publicity pertaining to distribution of the software without specific, |
||||
* written prior permission. The copyright holders make no representations |
||||
* about the suitability of this software for any purpose. It is provided "as |
||||
* is" without express or implied warranty. |
||||
* |
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
||||
* OF THIS SOFTWARE. |
||||
*/ |
||||
|
||||
#include "../config.h" |
||||
|
||||
#include <stdlib.h> |
||||
#include <stdio.h> |
||||
#include <jpeglib.h> |
||||
#include <png.h> |
||||
#include <pixman.h> |
||||
|
||||
#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0]) |
||||
|
||||
#ifdef HAVE_WEBP |
||||
#include <webp/decode.h> |
||||
#endif |
||||
|
||||
static int |
||||
stride_for_width(int width) |
||||
{ |
||||
return width * 4; |
||||
} |
||||
|
||||
static void |
||||
swizzle_row(JSAMPLE *row, JDIMENSION width) |
||||
{ |
||||
JSAMPLE *s; |
||||
uint32_t *d; |
||||
|
||||
s = row + (width - 1) * 3; |
||||
d = (uint32_t *) (row + (width - 1) * 4); |
||||
while (s >= row) { |
||||
*d = 0xff000000 | (s[0] << 16) | (s[1] << 8) | (s[2] << 0); |
||||
s -= 3; |
||||
d--; |
||||
} |
||||
} |
||||
|
||||
static void |
||||
error_exit(j_common_ptr cinfo) |
||||
{ |
||||
longjmp(cinfo->client_data, 1); |
||||
} |
||||
|
||||
static pixman_image_t * |
||||
load_jpeg(FILE *fp) |
||||
{ |
||||
struct jpeg_decompress_struct cinfo; |
||||
struct jpeg_error_mgr jerr; |
||||
int stride, i, first; |
||||
JSAMPLE *data, *rows[4]; |
||||
jmp_buf env; |
||||
|
||||
cinfo.err = jpeg_std_error(&jerr); |
||||
jerr.error_exit = error_exit; |
||||
cinfo.client_data = env; |
||||
if (setjmp(env)) |
||||
return NULL; |
||||
|
||||
jpeg_create_decompress(&cinfo); |
||||
|
||||
jpeg_stdio_src(&cinfo, fp); |
||||
|
||||
jpeg_read_header(&cinfo, TRUE); |
||||
|
||||
cinfo.out_color_space = JCS_RGB; |
||||
jpeg_start_decompress(&cinfo); |
||||
|
||||
stride = cinfo.output_width * 4; |
||||
data = malloc(stride * cinfo.output_height); |
||||
if (data == NULL) { |
||||
fprintf(stderr, "couldn't allocate image data\n"); |
||||
return NULL; |
||||
} |
||||
|
||||
while (cinfo.output_scanline < cinfo.output_height) { |
||||
first = cinfo.output_scanline; |
||||
for (i = 0; i < ARRAY_LENGTH(rows); i++) |
||||
rows[i] = data + (first + i) * stride; |
||||
|
||||
jpeg_read_scanlines(&cinfo, rows, ARRAY_LENGTH(rows)); |
||||
for (i = 0; first + i < cinfo.output_scanline; i++) |
||||
swizzle_row(rows[i], cinfo.output_width); |
||||
} |
||||
|
||||
jpeg_finish_decompress(&cinfo); |
||||
|
||||
jpeg_destroy_decompress(&cinfo); |
||||
|
||||
return pixman_image_create_bits(PIXMAN_a8r8g8b8, |
||||
cinfo.output_width, |
||||
cinfo.output_height, |
||||
(uint32_t *) data, stride); |
||||
} |
||||
|
||||
static inline int |
||||
multiply_alpha(int alpha, int color) |
||||
{ |
||||
int temp = (alpha * color) + 0x80; |
||||
|
||||
return ((temp + (temp >> 8)) >> 8); |
||||
} |
||||
|
||||
static void |
||||
premultiply_data(png_structp png, |
||||
png_row_infop row_info, |
||||
png_bytep data) |
||||
{ |
||||
unsigned int i; |
||||
png_bytep p; |
||||
|
||||
for (i = 0, p = data; i < row_info->rowbytes; i += 4, p += 4) { |
||||
png_byte alpha = p[3]; |
||||
uint32_t w; |
||||
|
||||
if (alpha == 0) { |
||||
w = 0; |
||||
} else { |
||||
png_byte red = p[0]; |
||||
png_byte green = p[1]; |
||||
png_byte blue = p[2]; |
||||
|
||||
if (alpha != 0xff) { |
||||
red = multiply_alpha(alpha, red); |
||||
green = multiply_alpha(alpha, green); |
||||
blue = multiply_alpha(alpha, blue); |
||||
} |
||||
w = (alpha << 24) | (red << 16) | (green << 8) | (blue << 0); |
||||
} |
||||
|
||||
* (uint32_t *) p = w; |
||||
} |
||||
} |
||||
|
||||
static void |
||||
read_func(png_structp png, png_bytep data, png_size_t size) |
||||
{ |
||||
FILE *fp = png_get_io_ptr(png); |
||||
|
||||
if (fread(data, 1, size, fp) < 0) |
||||
png_error(png, NULL); |
||||
} |
||||
|
||||
static void |
||||
png_error_callback(png_structp png, png_const_charp error_msg) |
||||
{ |
||||
longjmp (png_jmpbuf (png), 1); |
||||
} |
||||
|
||||
static pixman_image_t * |
||||
load_png(FILE *fp) |
||||
{ |
||||
png_struct *png; |
||||
png_info *info; |
||||
png_byte *data = NULL; |
||||
png_byte **row_pointers = NULL; |
||||
png_uint_32 width, height; |
||||
int depth, color_type, interlace, stride; |
||||
unsigned int i; |
||||
|
||||
png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, |
||||
png_error_callback, NULL); |
||||
if (!png) |
||||
return NULL; |
||||
|
||||
info = png_create_info_struct(png); |
||||
if (!info) { |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
return NULL; |
||||
} |
||||
|
||||
if (setjmp(png_jmpbuf(png))) { |
||||
if (data) |
||||
free(data); |
||||
if (row_pointers) |
||||
free(row_pointers); |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
return NULL; |
||||
} |
||||
|
||||
png_set_read_fn(png, fp, read_func); |
||||
png_read_info(png, info); |
||||
png_get_IHDR(png, info, |
||||
&width, &height, &depth, |
||||
&color_type, &interlace, NULL, NULL); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_PALETTE) |
||||
png_set_palette_to_rgb(png); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_GRAY) |
||||
png_set_expand_gray_1_2_4_to_8(png); |
||||
|
||||
if (png_get_valid(png, info, PNG_INFO_tRNS)) |
||||
png_set_tRNS_to_alpha(png); |
||||
|
||||
if (depth == 16) |
||||
png_set_strip_16(png); |
||||
|
||||
if (depth < 8) |
||||
png_set_packing(png); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_GRAY || |
||||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
||||
png_set_gray_to_rgb(png); |
||||
|
||||
if (interlace != PNG_INTERLACE_NONE) |
||||
png_set_interlace_handling(png); |
||||
|
||||
png_set_filler(png, 0xff, PNG_FILLER_AFTER); |
||||
png_set_read_user_transform_fn(png, premultiply_data); |
||||
png_read_update_info(png, info); |
||||
png_get_IHDR(png, info, |
||||
&width, &height, &depth, |
||||
&color_type, &interlace, NULL, NULL); |
||||
|
||||
|
||||
stride = stride_for_width(width); |
||||
data = malloc(stride * height); |
||||
if (!data) { |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
return NULL; |
||||
} |
||||
|
||||
row_pointers = malloc(height * sizeof row_pointers[0]); |
||||
if (row_pointers == NULL) { |
||||
free(data); |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
return NULL; |
||||
} |
||||
|
||||
for (i = 0; i < height; i++) |
||||
row_pointers[i] = &data[i * stride]; |
||||
|
||||
png_read_image(png, row_pointers); |
||||
png_read_end(png, info); |
||||
|
||||
free(row_pointers); |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
|
||||
return pixman_image_create_bits(PIXMAN_a8r8g8b8, width, height, |
||||
(uint32_t *) data, stride); |
||||
} |
||||
|
||||
#ifdef HAVE_WEBP |
||||
|
||||
static pixman_image_t * |
||||
load_webp(FILE *fp) |
||||
{ |
||||
WebPDecoderConfig config; |
||||
uint8_t buffer[16 * 1024]; |
||||
int len; |
||||
VP8StatusCode status; |
||||
WebPIDecoder *idec; |
||||
|
||||
if (!WebPInitDecoderConfig(&config)) { |
||||
fprintf(stderr, "Library version mismatch!\n"); |
||||
return NULL; |
||||
} |
||||
|
||||
/* webp decoding api doesn't seem to specify a min size that's
|
||||
usable for GetFeatures, but 256 works... */ |
||||
len = fread(buffer, 1, 256, fp); |
||||
status = WebPGetFeatures(buffer, len, &config.input); |
||||
if (status != VP8_STATUS_OK) { |
||||
fprintf(stderr, "failed to parse webp header\n"); |
||||
WebPFreeDecBuffer(&config.output); |
||||
return NULL; |
||||
} |
||||
|
||||
config.output.colorspace = MODE_BGRA; |
||||
config.output.u.RGBA.stride = stride_for_width(config.input.width); |
||||
config.output.u.RGBA.size = |
||||
config.output.u.RGBA.stride * config.input.height; |
||||
config.output.u.RGBA.rgba = |
||||
malloc(config.output.u.RGBA.stride * config.input.height); |
||||
config.output.is_external_memory = 1; |
||||
if (!config.output.u.RGBA.rgba) { |
||||
WebPFreeDecBuffer(&config.output); |
||||
return NULL; |
||||
} |
||||
|
||||
rewind(fp); |
||||
idec = WebPINewDecoder(&config.output); |
||||
if (!idec) { |
||||
WebPFreeDecBuffer(&config.output); |
||||
return NULL; |
||||
} |
||||
|
||||
while (!feof(fp)) { |
||||
len = fread(buffer, 1, sizeof buffer, fp); |
||||
status = WebPIAppend(idec, buffer, len); |
||||
if (status != VP8_STATUS_OK) { |
||||
fprintf(stderr, "webp decode status %d\n", status); |
||||
WebPIDelete(idec); |
||||
WebPFreeDecBuffer(&config.output); |
||||
return NULL; |
||||
} |
||||
} |
||||
|
||||
WebPIDelete(idec); |
||||
WebPFreeDecBuffer(&config.output); |
||||
|
||||
return pixman_image_create_bits(PIXMAN_a8r8g8b8, |
||||
config.input.width, |
||||
config.input.height, |
||||
(uint32_t *) config.output.u.RGBA.rgba, |
||||
config.output.u.RGBA.stride); |
||||
} |
||||
|
||||
#endif |
||||
|
||||
|
||||
struct image_loader { |
||||
char header[4]; |
||||
int header_size; |
||||
pixman_image_t *(*load)(FILE *fp); |
||||
}; |
||||
|
||||
static const struct image_loader loaders[] = { |
||||
{ { 0x89, 'P', 'N', 'G' }, 4, load_png }, |
||||
{ { 0xff, 0xd8 }, 2, load_jpeg }, |
||||
#ifdef HAVE_WEBP |
||||
{ { 'R', 'I', 'F', 'F' }, 4, load_webp } |
||||
#endif |
||||
}; |
||||
|
||||
pixman_image_t * |
||||
load_image(const char *filename) |
||||
{ |
||||
pixman_image_t *image; |
||||
unsigned char header[4]; |
||||
FILE *fp; |
||||
int i; |
||||
|
||||
fp = fopen(filename, "rb"); |
||||
if (fp == NULL) |
||||
return NULL; |
||||
|
||||
fread(header, sizeof header, 1, fp); |
||||
rewind(fp); |
||||
for (i = 0; i < ARRAY_LENGTH(loaders); i++) { |
||||
if (memcmp(header, loaders[i].header, |
||||
loaders[i].header_size) == 0) { |
||||
image = loaders[i].load(fp); |
||||
break; |
||||
} |
||||
} |
||||
|
||||
fclose(fp); |
||||
|
||||
if (i == ARRAY_LENGTH(loaders)) { |
||||
fprintf(stderr, "unrecognized file header for %s: " |
||||
"0x%02x 0x%02x 0x%02x 0x%02x\n", |
||||
filename, header[0], header[1], header[2], header[3]); |
||||
image = NULL; |
||||
} |
||||
|
||||
return image; |
||||
} |
||||
@ -1,177 +0,0 @@ |
||||
/*
|
||||
* Copyright © 2011 Intel Corporation |
||||
* |
||||
* Permission to use, copy, modify, distribute, and sell this software and |
||||
* its documentation for any purpose is hereby granted without fee, provided |
||||
* that the above copyright notice appear in all copies and that both that |
||||
* copyright notice and this permission notice appear in supporting |
||||
* documentation, and that the name of the copyright holders not be used in |
||||
* advertising or publicity pertaining to distribution of the software |
||||
* without specific, written prior permission. The copyright holders make |
||||
* no representations about the suitability of this software for any |
||||
* purpose. It is provided "as is" without express or implied warranty. |
||||
* |
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS |
||||
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
||||
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY |
||||
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
||||
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF |
||||
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
||||
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
||||
*/ |
||||
|
||||
#include <stdio.h> |
||||
#include <stdlib.h> |
||||
#include <stdint.h> |
||||
#include <errno.h> |
||||
#include <png.h> |
||||
|
||||
#include "compositor.h" |
||||
|
||||
static inline int |
||||
multiply_alpha(int alpha, int color) |
||||
{ |
||||
int temp = (alpha * color) + 0x80; |
||||
|
||||
return ((temp + (temp >> 8)) >> 8); |
||||
} |
||||
|
||||
static void |
||||
premultiply_data(png_structp png, |
||||
png_row_infop row_info, |
||||
png_bytep data) |
||||
{ |
||||
unsigned int i; |
||||
png_bytep p; |
||||
|
||||
for (i = 0, p = data; i < row_info->rowbytes; i += 4, p += 4) { |
||||
png_byte alpha = p[3]; |
||||
uint32_t w; |
||||
|
||||
if (alpha == 0) { |
||||
w = 0; |
||||
} else { |
||||
png_byte red = p[0]; |
||||
png_byte green = p[1]; |
||||
png_byte blue = p[2]; |
||||
|
||||
if (alpha != 0xff) { |
||||
red = multiply_alpha(alpha, red); |
||||
green = multiply_alpha(alpha, green); |
||||
blue = multiply_alpha(alpha, blue); |
||||
} |
||||
w = (alpha << 24) | (red << 16) | (green << 8) | (blue << 0); |
||||
} |
||||
|
||||
* (uint32_t *) p = w; |
||||
} |
||||
} |
||||
|
||||
static void |
||||
read_func(png_structp png, png_bytep data, png_size_t size) |
||||
{ |
||||
FILE *fp = png_get_io_ptr(png); |
||||
|
||||
if (fread(data, 1, size, fp) < 0) |
||||
png_error(png, NULL); |
||||
} |
||||
|
||||
WL_EXPORT uint32_t * |
||||
weston_load_image(const char *filename, |
||||
int32_t *width_arg, int32_t *height_arg, |
||||
uint32_t *stride_arg) |
||||
{ |
||||
png_struct *png; |
||||
png_info *info; |
||||
png_byte *data; |
||||
png_byte **row_pointers = NULL; |
||||
png_uint_32 width, height; |
||||
int depth, color_type, interlace, stride; |
||||
unsigned int i; |
||||
FILE *fp; |
||||
|
||||
fp = fopen(filename, "rb"); |
||||
if (fp == NULL) |
||||
return NULL; |
||||
|
||||
png = png_create_read_struct(PNG_LIBPNG_VER_STRING, |
||||
NULL, NULL, NULL); |
||||
if (!png) { |
||||
fclose(fp); |
||||
return NULL; |
||||
} |
||||
|
||||
info = png_create_info_struct(png); |
||||
if (!info) { |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
fclose(fp); |
||||
return NULL; |
||||
} |
||||
|
||||
png_set_read_fn(png, fp, read_func); |
||||
png_read_info(png, info); |
||||
png_get_IHDR(png, info, |
||||
&width, &height, &depth, |
||||
&color_type, &interlace, NULL, NULL); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_PALETTE) |
||||
png_set_palette_to_rgb(png); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_GRAY) |
||||
png_set_expand_gray_1_2_4_to_8(png); |
||||
|
||||
if (png_get_valid(png, info, PNG_INFO_tRNS)) |
||||
png_set_tRNS_to_alpha(png); |
||||
|
||||
if (depth == 16) |
||||
png_set_strip_16(png); |
||||
|
||||
if (depth < 8) |
||||
png_set_packing(png); |
||||
|
||||
if (color_type == PNG_COLOR_TYPE_GRAY || |
||||
color_type == PNG_COLOR_TYPE_GRAY_ALPHA) |
||||
png_set_gray_to_rgb(png); |
||||
|
||||
if (interlace != PNG_INTERLACE_NONE) |
||||
png_set_interlace_handling(png); |
||||
|
||||
png_set_filler(png, 0xff, PNG_FILLER_AFTER); |
||||
png_set_read_user_transform_fn(png, premultiply_data); |
||||
png_read_update_info(png, info); |
||||
png_get_IHDR(png, info, |
||||
&width, &height, &depth, |
||||
&color_type, &interlace, NULL, NULL); |
||||
|
||||
stride = width * 4; |
||||
data = malloc(stride * height); |
||||
if (!data) { |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
fclose(fp); |
||||
return NULL; |
||||
} |
||||
|
||||
row_pointers = malloc(height * sizeof row_pointers[0]); |
||||
if (row_pointers == NULL) { |
||||
free(data); |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
fclose(fp); |
||||
return NULL; |
||||
} |
||||
|
||||
for (i = 0; i < height; i++) |
||||
row_pointers[i] = &data[i * stride]; |
||||
|
||||
png_read_image(png, row_pointers); |
||||
png_read_end(png, info); |
||||
|
||||
free(row_pointers); |
||||
png_destroy_read_struct(&png, &info, NULL); |
||||
fclose(fp); |
||||
|
||||
*width_arg = width; |
||||
*height_arg = height; |
||||
*stride_arg = stride; |
||||
|
||||
return (uint32_t *) data; |
||||
} |
||||
Loading…
Reference in new issue