diff options
Diffstat (limited to 'io-psd.c')
| -rw-r--r-- | io-psd.c | 55 |
1 files changed, 16 insertions, 39 deletions
@@ -1,5 +1,5 @@ -/* -*- mode: C; c-file-style: "linux" -*- */ -/* GdkPixbuf library - PSD image loader +/* + * GdkPixbuf library - PSD image loader * * Copyright (C) 2008 Jan Dudek * @@ -108,7 +108,6 @@ typedef struct guint pos; guint16* lines_lengths; gboolean finalized; - gboolean use_alpha; } PsdContext; @@ -221,7 +220,7 @@ decompress_line(const guchar* src, guint line_length, guchar* dest) } else if (byte > -1) { gint count = byte + 1; - // copy next count bytes + /* copy next count bytes */ for (int k = 0; k < count; ++k) { *dest = src[bytes_read]; ++dest; @@ -230,7 +229,7 @@ decompress_line(const guchar* src, guint line_length, guchar* dest) } else { gint count = -byte + 1; - // copy next byte count times + /* copy next byte count times */ guchar next_byte = src[bytes_read]; ++bytes_read; for (int k = 0; k < count; ++k) { @@ -272,7 +271,7 @@ gdk_pixbuf__psd_image_begin_load (GdkPixbufModuleSizeFunc size_func, context->state = PSD_STATE_HEADER; - // we'll allocate larger buffer once we know image size + /* we'll allocate larger buffer once we know image size */ context->buffer = g_malloc(PSD_HEADER_SIZE); reset_context_buffer(context); @@ -282,7 +281,6 @@ gdk_pixbuf__psd_image_begin_load (GdkPixbufModuleSizeFunc size_func, context->pos = 0; context->lines_lengths = NULL; context->finalized = FALSE; - context->use_alpha = FALSE; return (gpointer) context; } @@ -339,14 +337,6 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, ctx->depth_bytes = (ctx->depth/8 > 0 ? ctx->depth/8 : 1); ctx->color_mode = hd.color_mode; - /* - if (ctx->color_mode == PSD_MODE_RGB && ctx->channels == 4) { - ctx->use_alpha = TRUE; - }*/ - - //g_message("color_mode=%d, channels=%d, depth=%d", - // ctx->color_mode, ctx->channels, ctx->depth); - if (ctx->color_mode != PSD_MODE_RGB && ctx->color_mode != PSD_MODE_GRAYSCALE && ctx->color_mode != PSD_MODE_CMYK @@ -374,17 +364,17 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, } } - // we need buffer that can contain one channel data for one - // row in RLE compressed format. 2*width should be enough + /* we need buffer that can contain one channel data for one + row in RLE compressed format. 2*width should be enough */ g_free(ctx->buffer); ctx->buffer = g_malloc(ctx->width * 2 * ctx->depth_bytes); - // this will be needed for RLE decompression + /* this will be needed for RLE decompression */ ctx->lines_lengths = g_malloc(2 * ctx->channels * ctx->height); ctx->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, - ctx->use_alpha, 8, ctx->width, ctx->height); + FALSE, 8, ctx->width, ctx->height); if (ctx->lines_lengths == NULL || ctx->buffer == NULL || ctx->pixbuf == NULL) @@ -395,7 +385,7 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, return FALSE; } - // create separate buffers for each channel + /* create separate buffers for each channel */ ctx->ch_bufs = g_malloc(sizeof(guchar*) * ctx->channels); for (int i = 0; i < ctx->channels; i++) { ctx->ch_bufs[i] = @@ -457,7 +447,7 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, (guchar*) ctx->lines_lengths, &ctx->bytes_read, &data, &size, 2 * ctx->height * ctx->channels)) { - // convert from different endianness + /* convert from different endianness */ for (int i = 0; i < ctx->height * ctx->channels; i++) { ctx->lines_lengths[i] = read_uint16( (guchar*) &ctx->lines_lengths[i]); @@ -510,11 +500,11 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, } if (ctx->state == PSD_STATE_DONE && !ctx->finalized) { - // convert or copy channel buffers to our GdkPixbuf + /* convert or copy channel buffers to our GdkPixbuf */ guchar* pixels = gdk_pixbuf_get_pixels(ctx->pixbuf); guint b = ctx->depth_bytes; - if (ctx->color_mode == PSD_MODE_RGB && !ctx->use_alpha) { + if (ctx->color_mode == PSD_MODE_RGB) { for (int i = 0; i < ctx->height; i++) { for (int j = 0; j < ctx->width; j++) { pixels[3*j+0] = ctx->ch_bufs[0][ctx->width*i*b + j*b]; @@ -533,22 +523,9 @@ gdk_pixbuf__psd_image_load_increment (gpointer context_ptr, } pixels += gdk_pixbuf_get_rowstride(ctx->pixbuf); } - } -#if 0 - else if (ctx->color_mode == PSD_MODE_RGB && ctx->use_alpha) { - guchar* pixels = gdk_pixbuf_get_pixels(ctx->pixbuf); - for (int i = 0; i < ctx->height; i++) { - for (int j = 0; j < ctx->width; j++) { - pixels[4*j+0] = ctx->ch_bufs[0][ctx->width*i + j]; - pixels[4*j+1] = ctx->ch_bufs[1][ctx->width*i + j]; - pixels[4*j+2] = ctx->ch_bufs[2][ctx->width*i + j]; - pixels[4*j+3] = ctx->ch_bufs[3][ctx->width*i + j]; - } - pixels += gdk_pixbuf_get_rowstride(ctx->pixbuf); - } -#endif - else if (ctx->color_mode == PSD_MODE_CMYK) { - // unfortunately, this doesn't seem to work correctly... + } else if (ctx->color_mode == PSD_MODE_CMYK) { + /* unfortunately, this doesn't work 100% correctly... + CMYK-RGB conversion distorts colors significantly */ guchar* pixels = gdk_pixbuf_get_pixels(ctx->pixbuf); for (int i = 0; i < ctx->height; i++) { |