[gdk-pixbuf/wip/otte/tga: 2/17] tga: Port to GdkPixbufBufferQueue
- From: Benjamin Otte <otte src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gdk-pixbuf/wip/otte/tga: 2/17] tga: Port to GdkPixbufBufferQueue
- Date: Mon, 21 Sep 2015 15:52:11 +0000 (UTC)
commit 4ca19ab7d2332c1e016fa3e2c5cb62ac7925f816
Author: Benjamin Otte <otte redhat com>
Date: Sun Sep 20 06:35:04 2015 +0200
tga: Port to GdkPixbufBufferQueue
gdk-pixbuf/io-tga.c | 551 ++++++++++++++++++++++-----------------------------
1 files changed, 239 insertions(+), 312 deletions(-)
---
diff --git a/gdk-pixbuf/io-tga.c b/gdk-pixbuf/io-tga.c
index 156a416..df80864 100644
--- a/gdk-pixbuf/io-tga.c
+++ b/gdk-pixbuf/io-tga.c
@@ -34,6 +34,7 @@
#include <string.h>
#include "gdk-pixbuf-private.h"
+#include "gdk-pixbuf-buffer-queue-private.h"
#undef DEBUG_TGA
@@ -58,8 +59,6 @@ enum {
#define LE16(p) ((p)[0] + ((p)[1] << 8))
-typedef struct _IOBuffer IOBuffer;
-
typedef struct _TGAHeader TGAHeader;
typedef struct _TGAFooter TGAFooter;
@@ -124,7 +123,7 @@ struct _TGAContext {
guint pbuf_bytes_done;
guchar *pptr;
- IOBuffer *in;
+ GdkPixbufBufferQueue *input;
gboolean skipped_info;
gboolean prepared;
@@ -136,99 +135,6 @@ struct _TGAContext {
gpointer udata;
};
-struct _IOBuffer {
- guchar *data;
- guint size;
-};
-
-static IOBuffer *io_buffer_new(GError **err)
-{
- IOBuffer *buffer;
- buffer = g_try_malloc(sizeof(IOBuffer));
- if (!buffer) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
- _("Cannot allocate memory for IOBuffer struct"));
- return NULL;
- }
- buffer->data = NULL;
- buffer->size = 0;
- return buffer;
-}
-
-static IOBuffer *io_buffer_append(IOBuffer *buffer,
- const guchar *data, guint len,
- GError **err)
-{
- if (!buffer)
- return NULL;
- if (!buffer->data) {
- buffer->data = g_try_malloc(len);
- if (!buffer->data) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
- _("Cannot allocate memory for IOBuffer data"));
- g_free(buffer);
- return NULL;
- }
- g_memmove(buffer->data, data, len);
- buffer->size = len;
- } else {
- guchar *tmp = g_try_realloc (buffer->data, buffer->size + len);
- if (!tmp) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
- _("Cannot realloc IOBuffer data"));
- g_free(buffer);
- return NULL;
- }
- buffer->data = tmp;
- g_memmove(&buffer->data[buffer->size], data, len);
- buffer->size += len;
- }
- return buffer;
-}
-
-static IOBuffer *io_buffer_free_segment(IOBuffer *buffer,
- guint count,
- GError **err)
-{
- g_return_val_if_fail(buffer != NULL, NULL);
- g_return_val_if_fail(buffer->data != NULL, NULL);
- if (count == buffer->size) {
- g_free(buffer->data);
- buffer->data = NULL;
- buffer->size = 0;
- } else {
- guchar *new_buf;
- guint new_size;
-
- new_size = buffer->size - count;
- new_buf = g_try_malloc(new_size);
- if (!new_buf) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
- _("Cannot allocate temporary IOBuffer data"));
- g_free(buffer->data);
- g_free(buffer);
- return NULL;
- }
-
- g_memmove(new_buf, &buffer->data[count], new_size);
- g_free(buffer->data);
- buffer->data = new_buf;
- buffer->size = new_size;
- }
- return buffer;
-}
-
-static void io_buffer_free(IOBuffer *buffer)
-{
- g_return_if_fail(buffer != NULL);
- g_free(buffer->data);
- g_free(buffer);
-}
-
static void free_buffer(guchar *pixels, gpointer data)
{
g_free(pixels);
@@ -401,65 +307,91 @@ static gboolean fill_in_context(TGAContext *ctx, GError **err)
return TRUE;
}
-static void parse_data_for_row_pseudocolor(TGAContext *ctx)
-{
- guchar *s = ctx->in->data;
- guint upper_bound = ctx->pbuf->width;
- guchar *p = ctx->pptr;
-
- for (; upper_bound; upper_bound--, s++) {
- const TGAColor *color = colormap_get_color (ctx->cmap, *s);
- *p++ = color->r;
- *p++ = color->g;
- *p++ = color->b;
- if (ctx->hdr->cmap_bpp == 32)
- *p++ = color->a;
- }
-}
-
-static void swap_channels(TGAContext *ctx)
+static void
+parse_data_for_row_pseudocolor (TGAContext *ctx,
+ GBytes *bytes)
{
- guchar swap;
- guint count;
- guchar *p = ctx->pptr;
- for (count = ctx->pbuf->width; count; count--) {
- swap = p[0];
- p[0] = p[2];
- p[2] = swap;
- p += ctx->pbuf->n_channels;
- }
+ gsize size, i;
+ guchar *p = ctx->pptr;
+ const guchar *data = g_bytes_get_data (bytes, &size);
+
+ g_assert (size == ctx->pbuf->width);
+
+ for (i = 0; i < size; i++)
+ {
+ const TGAColor *color = colormap_get_color (ctx->cmap, data[i]);
+ *p++ = color->r;
+ *p++ = color->g;
+ *p++ = color->b;
+ if (ctx->hdr->cmap_bpp == 32)
+ *p++ = color->a;
+ }
}
-static void parse_data_for_row_truecolor(TGAContext *ctx)
+static void
+parse_data_for_row_truecolor (TGAContext *ctx,
+ GBytes *bytes)
{
- g_memmove(ctx->pptr, ctx->in->data, ctx->pbuf->rowstride);
- swap_channels(ctx);
+ const guchar *data;
+ guchar *p;
+ gsize i, size;
+
+ data = g_bytes_get_data (bytes, &size);
+ p = ctx->pptr;
+ g_assert (size == ctx->pbuf->width * ctx->pbuf->n_channels);
+
+ for (i = 0; i < ctx->pbuf->width; i++)
+ {
+ p[0] = data[2];
+ p[1] = data[1];
+ p[2] = data[0];
+ if (ctx->pbuf->n_channels == 4)
+ p[3] = data[3];
+
+ p += ctx->pbuf->n_channels;
+ data += ctx->pbuf->n_channels;
+ }
}
-static void parse_data_for_row_grayscale(TGAContext *ctx)
+static void
+parse_data_for_row_grayscale (TGAContext *ctx,
+ GBytes *bytes)
{
- guchar *s = ctx->in->data;
- guint upper_bound = ctx->pbuf->width;
-
- guchar *p = ctx->pptr;
- for (; upper_bound; upper_bound--) {
- p[0] = p[1] = p[2] = *s++;
- if (ctx->pbuf->n_channels == 4)
- p[3] = *s++;
- p += ctx->pbuf->n_channels;
- }
+ gsize i, size;
+ const guchar *s;
+ guchar *p;
+ gboolean has_alpha;
+
+ s = g_bytes_get_data (bytes, &size);
+ p = ctx->pptr;
+ has_alpha = ctx->pbuf->n_channels == 4;
+
+ g_assert (size == ctx->pbuf->width * (has_alpha ? 2 : 1));
+
+ for (i = 0; i < ctx->pbuf->width; i++)
+ {
+ p[0] = p[1] = p[2] = *s++;
+ if (has_alpha)
+ p[3] = *s++;
+ p += ctx->pbuf->n_channels;
+ }
}
-static gboolean parse_data_for_row(TGAContext *ctx, GError **err)
+static void
+parse_data_for_row (TGAContext *ctx)
{
+ GBytes *bytes;
guint row;
+ bytes = gdk_pixbuf_buffer_queue_pull (ctx->input, ctx->rowstride);
+ g_assert (bytes != NULL);
+
if (ctx->hdr->type == TGA_TYPE_PSEUDOCOLOR)
- parse_data_for_row_pseudocolor(ctx);
+ parse_data_for_row_pseudocolor (ctx, bytes);
else if (ctx->hdr->type == TGA_TYPE_TRUECOLOR)
- parse_data_for_row_truecolor(ctx);
+ parse_data_for_row_truecolor (ctx, bytes);
else if (ctx->hdr->type == TGA_TYPE_GRAYSCALE)
- parse_data_for_row_grayscale(ctx);
+ parse_data_for_row_grayscale (ctx, bytes);
if (ctx->hdr->flags & TGA_ORIGIN_RIGHT)
pixbuf_flip_row (ctx->pbuf, ctx->pptr);
@@ -471,13 +403,9 @@ static gboolean parse_data_for_row(TGAContext *ctx, GError **err)
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes)
ctx->done = TRUE;
- ctx->in = io_buffer_free_segment(ctx->in, ctx->rowstride, err);
- if (!ctx->in)
- return FALSE;
row = (ctx->pptr - ctx->pbuf->pixels) / ctx->pbuf->rowstride - 1;
if (ctx->ufunc)
(*ctx->ufunc) (ctx->pbuf, 0, row, ctx->pbuf->width, 1, ctx->udata);
- return TRUE;
}
static void write_rle_data(TGAContext *ctx, const TGAColor *color, guint *rle_count)
@@ -491,34 +419,39 @@ static void write_rle_data(TGAContext *ctx, const TGAColor *color, guint *rle_co
}
}
-static guint parse_rle_data_pseudocolor(TGAContext *ctx)
+static void
+parse_rle_data_pseudocolor (TGAContext *ctx)
{
+ GBytes *bytes;
guint rle_num, raw_num;
- guchar *s, tag;
- guint n;
+ const guchar *s;
+ guchar tag;
+ gsize n, size;
- g_return_val_if_fail(ctx->in->size > 0, 0);
- s = ctx->in->data;
+ bytes = gdk_pixbuf_buffer_queue_peek (ctx->input, gdk_pixbuf_buffer_queue_get_size (ctx->input));
+ s = g_bytes_get_data (bytes, &size);
- for (n = 0; n < ctx->in->size; ) {
+ for (n = 0; n < size; ) {
tag = *s;
s++, n++;
if (tag & 0x80) {
- if (n == ctx->in->size) {
- return --n;
+ if (n == size) {
+ --n;
+ break;
} else {
rle_num = (tag & 0x7f) + 1;
write_rle_data(ctx, colormap_get_color (ctx->cmap, *s), &rle_num);
s++, n++;
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
} else {
raw_num = tag + 1;
- if (n + raw_num >= ctx->in->size) {
- return --n;
+ if (n + raw_num >= size) {
+ --n;
+ break;
} else {
for (; raw_num; raw_num--) {
const TGAColor *color = colormap_get_color (ctx->cmap, *s);
@@ -531,7 +464,7 @@ static guint parse_rle_data_pseudocolor(TGAContext *ctx)
ctx->pbuf_bytes_done += ctx->pbuf->n_channels;
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
}
@@ -541,25 +474,30 @@ static guint parse_rle_data_pseudocolor(TGAContext *ctx)
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes)
ctx->done = TRUE;
- return n;
+ g_bytes_unref (bytes);
+ gdk_pixbuf_buffer_queue_flush (ctx->input, n);
}
-static guint parse_rle_data_truecolor(TGAContext *ctx)
+static void
+parse_rle_data_truecolor (TGAContext *ctx)
{
+ GBytes *bytes;
TGAColor col;
guint rle_num, raw_num;
- guchar *s, tag;
- guint n = 0;
+ const guchar *s;
+ guchar tag;
+ gsize n, size;
- g_return_val_if_fail(ctx->in->size > 0, 0);
- s = ctx->in->data;
+ bytes = gdk_pixbuf_buffer_queue_peek (ctx->input, gdk_pixbuf_buffer_queue_get_size (ctx->input));
+ s = g_bytes_get_data (bytes, &size);
- for (n = 0; n < ctx->in->size; ) {
+ for (n = 0; n < size; ) {
tag = *s;
s++, n++;
if (tag & 0x80) {
- if (n + ctx->pbuf->n_channels >= ctx->in->size) {
- return --n;
+ if (n + ctx->pbuf->n_channels >= size) {
+ --n;
+ break;
} else {
rle_num = (tag & 0x7f) + 1;
col.b = *s++;
@@ -571,13 +509,14 @@ static guint parse_rle_data_truecolor(TGAContext *ctx)
write_rle_data(ctx, &col, &rle_num);
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
} else {
raw_num = tag + 1;
- if (n + (raw_num * ctx->pbuf->n_channels) >= ctx->in->size) {
- return --n;
+ if (n + (raw_num * ctx->pbuf->n_channels) >= size) {
+ --n;
+ break;
} else {
for (; raw_num; raw_num--) {
ctx->pptr[2] = *s++;
@@ -590,38 +529,45 @@ static guint parse_rle_data_truecolor(TGAContext *ctx)
ctx->pbuf_bytes_done += ctx->pbuf->n_channels;
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
}
}
+
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes)
ctx->done = TRUE;
- return n;
+
+ g_bytes_unref (bytes);
+ gdk_pixbuf_buffer_queue_flush (ctx->input, n);
}
-static guint parse_rle_data_grayscale(TGAContext *ctx)
+static void
+parse_rle_data_grayscale (TGAContext *ctx)
{
+ GBytes *bytes;
TGAColor tone;
guint rle_num, raw_num;
- guchar *s, tag;
- guint n;
+ const guchar *s;
+ guchar tag;
+ gsize n, size;
- g_return_val_if_fail(ctx->in->size > 0, 0);
- s = ctx->in->data;
+ bytes = gdk_pixbuf_buffer_queue_peek (ctx->input, gdk_pixbuf_buffer_queue_get_size (ctx->input));
+ s = g_bytes_get_data (bytes, &size);
- for (n = 0; n < ctx->in->size; ) {
+ for (n = 0; n < size; ) {
tag = *s;
s++, n++;
if (tag & 0x80) {
- if (n + (ctx->pbuf->n_channels == 4 ? 2 : 1) >= ctx->in->size) {
- return --n;
+ if (n + (ctx->pbuf->n_channels == 4 ? 2 : 1) >= size) {
+ --n;
+ break;
} else {
rle_num = (tag & 0x7f) + 1;
tone.r = tone.g = tone.b = *s;
@@ -633,13 +579,14 @@ static guint parse_rle_data_grayscale(TGAContext *ctx)
write_rle_data(ctx, &tone, &rle_num);
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
} else {
raw_num = tag + 1;
- if (n + raw_num * (ctx->pbuf->n_channels == 4 ? 2 : 1) >= ctx->in->size) {
- return --n;
+ if (n + raw_num * (ctx->pbuf->n_channels == 4 ? 2 : 1) >= size) {
+ --n;
+ break;
} else {
for (; raw_num; raw_num--) {
ctx->pptr[0] = ctx->pptr[1] = ctx->pptr[2] = *s;
@@ -652,29 +599,32 @@ static guint parse_rle_data_grayscale(TGAContext *ctx)
ctx->pbuf_bytes_done += ctx->pbuf->n_channels;
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes) {
ctx->done = TRUE;
- return n;
+ break;
}
}
}
}
}
+
if (ctx->pbuf_bytes_done == ctx->pbuf_bytes)
ctx->done = TRUE;
- return n;
+
+ g_bytes_unref (bytes);
+ gdk_pixbuf_buffer_queue_flush (ctx->input, n);
}
-static gboolean parse_rle_data(TGAContext *ctx, GError **err)
+static void
+parse_rle_data (TGAContext *ctx)
{
guint rows = 0;
- guint count = 0;
guint bytes_done_before = ctx->pbuf_bytes_done;
if (ctx->hdr->type == TGA_TYPE_RLE_PSEUDOCOLOR)
- count = parse_rle_data_pseudocolor(ctx);
+ parse_rle_data_pseudocolor(ctx);
else if (ctx->hdr->type == TGA_TYPE_RLE_TRUECOLOR)
- count = parse_rle_data_truecolor(ctx);
+ parse_rle_data_truecolor(ctx);
else if (ctx->hdr->type == TGA_TYPE_RLE_GRAYSCALE)
- count = parse_rle_data_grayscale(ctx);
+ parse_rle_data_grayscale(ctx);
if (ctx->hdr->flags & TGA_ORIGIN_RIGHT) {
guchar *row = ctx->pbuf->pixels + (bytes_done_before / ctx->pbuf->rowstride) *
ctx->pbuf->rowstride;
@@ -683,10 +633,6 @@ static gboolean parse_rle_data(TGAContext *ctx, GError **err)
pixbuf_flip_row (ctx->pbuf, row);
}
- ctx->in = io_buffer_free_segment(ctx->in, count, err);
- if (!ctx->in)
- return FALSE;
-
if (ctx->done) {
/* FIXME doing the vertical flipping afterwards is not
* perfect, but doing it during the rle decoding in place
@@ -704,14 +650,13 @@ static gboolean parse_rle_data(TGAContext *ctx, GError **err)
(*ctx->ufunc) (ctx->pbuf, 0, bytes_done_before / ctx->pbuf->rowstride,
ctx->pbuf->width, rows,
ctx->udata);
-
- return TRUE;
}
static gboolean try_colormap(TGAContext *ctx, GError **err)
{
+ GBytes *bytes;
TGAColor color;
- guchar *p;
+ const guchar *p;
guint i, n_colors;
g_return_val_if_fail(ctx != NULL, FALSE);
@@ -724,7 +669,9 @@ static gboolean try_colormap(TGAContext *ctx, GError **err)
return FALSE;
}
- p = ctx->in->data;
+ bytes = gdk_pixbuf_buffer_queue_pull (ctx->input, ctx->cmap_size);
+ g_assert (bytes);
+ p = g_bytes_get_data (bytes, NULL);
color.a = 255;
for (i = 0; i < n_colors; i++) {
@@ -745,120 +692,115 @@ static gboolean try_colormap(TGAContext *ctx, GError **err)
g_set_error_literal(err, GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
_("Unexpected bitdepth for colormap entries"));
+ g_bytes_unref (bytes);
return FALSE;
}
colormap_set_color (ctx->cmap, i, &color);
}
- ctx->in = io_buffer_free_segment(ctx->in, ctx->cmap_size, err);
- if (!ctx->in)
- return FALSE;
return TRUE;
}
static gboolean try_preload(TGAContext *ctx, GError **err)
{
if (!ctx->hdr) {
- if (ctx->in->size >= sizeof(TGAHeader)) {
- ctx->hdr = g_try_malloc(sizeof(TGAHeader));
- if (!ctx->hdr) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
- _("Cannot allocate TGA header memory"));
- return FALSE;
- }
- g_memmove(ctx->hdr, ctx->in->data, sizeof(TGAHeader));
- ctx->in = io_buffer_free_segment(ctx->in, sizeof(TGAHeader), err);
+ GBytes *bytes;
+
+ bytes = gdk_pixbuf_buffer_queue_pull (ctx->input, sizeof (TGAHeader));
+ if (bytes == NULL)
+ return TRUE;
+
+ ctx->hdr = g_try_malloc(sizeof(TGAHeader));
+ if (!ctx->hdr) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
+ _("Cannot allocate TGA header memory"));
+ return FALSE;
+ }
+ g_memmove(ctx->hdr, g_bytes_get_data (bytes, NULL), sizeof(TGAHeader));
+ g_bytes_unref (bytes);
#ifdef DEBUG_TGA
- g_print ("infolen %d "
- "has_cmap %d "
- "type %d "
- "cmap_start %d "
- "cmap_n_colors %d "
- "cmap_bpp %d "
- "x %d y %d width %d height %d bpp %d "
- "flags %#x",
- ctx->hdr->infolen,
- ctx->hdr->has_cmap,
- ctx->hdr->type,
- LE16(ctx->hdr->cmap_start),
- LE16(ctx->hdr->cmap_n_colors),
- ctx->hdr->cmap_bpp,
- LE16(ctx->hdr->x_origin),
- LE16(ctx->hdr->y_origin),
- LE16(ctx->hdr->width),
- LE16(ctx->hdr->height),
- ctx->hdr->bpp,
- ctx->hdr->flags);
+ g_print ("infolen %d "
+ "has_cmap %d "
+ "type %d "
+ "cmap_start %d "
+ "cmap_n_colors %d "
+ "cmap_bpp %d "
+ "x %d y %d width %d height %d bpp %d "
+ "flags %#x",
+ ctx->hdr->infolen,
+ ctx->hdr->has_cmap,
+ ctx->hdr->type,
+ LE16(ctx->hdr->cmap_start),
+ LE16(ctx->hdr->cmap_n_colors),
+ ctx->hdr->cmap_bpp,
+ LE16(ctx->hdr->x_origin),
+ LE16(ctx->hdr->y_origin),
+ LE16(ctx->hdr->width),
+ LE16(ctx->hdr->height),
+ ctx->hdr->bpp,
+ ctx->hdr->flags);
#endif
- if (!ctx->in)
- return FALSE;
- if (LE16(ctx->hdr->width) == 0 ||
- LE16(ctx->hdr->height) == 0) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
- _("TGA image has invalid dimensions"));
- return FALSE;
- }
- if ((ctx->hdr->flags & TGA_INTERLEAVE_MASK) != TGA_INTERLEAVE_NONE) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
- _("TGA image type not supported"));
- return FALSE;
- }
- switch (ctx->hdr->type) {
- case TGA_TYPE_PSEUDOCOLOR:
- case TGA_TYPE_RLE_PSEUDOCOLOR:
- if (ctx->hdr->bpp != 8) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
- _("TGA image type not supported"));
- return FALSE;
- }
- break;
- case TGA_TYPE_TRUECOLOR:
- case TGA_TYPE_RLE_TRUECOLOR:
- if (ctx->hdr->bpp != 24 &&
- ctx->hdr->bpp != 32) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
- _("TGA image type not supported"));
- return FALSE;
- }
- break;
- case TGA_TYPE_GRAYSCALE:
- case TGA_TYPE_RLE_GRAYSCALE:
- if (ctx->hdr->bpp != 8 &&
- ctx->hdr->bpp != 16) {
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
- GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
- _("TGA image type not supported"));
- return FALSE;
- }
- break;
- default:
- g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ if (LE16(ctx->hdr->width) == 0 ||
+ LE16(ctx->hdr->height) == 0) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
+ _("TGA image has invalid dimensions"));
+ return FALSE;
+ }
+ if ((ctx->hdr->flags & TGA_INTERLEAVE_MASK) != TGA_INTERLEAVE_NONE) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
+ _("TGA image type not supported"));
+ return FALSE;
+ }
+ switch (ctx->hdr->type) {
+ case TGA_TYPE_PSEUDOCOLOR:
+ case TGA_TYPE_RLE_PSEUDOCOLOR:
+ if (ctx->hdr->bpp != 8) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
_("TGA image type not supported"));
- return FALSE;
- }
- if (!fill_in_context(ctx, err))
- return FALSE;
- } else {
- return TRUE;
- }
+ return FALSE;
+ }
+ break;
+ case TGA_TYPE_TRUECOLOR:
+ case TGA_TYPE_RLE_TRUECOLOR:
+ if (ctx->hdr->bpp != 24 &&
+ ctx->hdr->bpp != 32) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
+ _("TGA image type not supported"));
+ return FALSE;
+ }
+ break;
+ case TGA_TYPE_GRAYSCALE:
+ case TGA_TYPE_RLE_GRAYSCALE:
+ if (ctx->hdr->bpp != 8 &&
+ ctx->hdr->bpp != 16) {
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
+ _("TGA image type not supported"));
+ return FALSE;
+ }
+ break;
+ default:
+ g_set_error_literal(err, GDK_PIXBUF_ERROR,
+ GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
+ _("TGA image type not supported"));
+ return FALSE;
+ }
+ if (!fill_in_context(ctx, err))
+ return FALSE;
}
if (!ctx->skipped_info) {
- if (ctx->in->size >= ctx->hdr->infolen) {
- ctx->in = io_buffer_free_segment(ctx->in, ctx->hdr->infolen, err);
- if (!ctx->in)
- return FALSE;
- ctx->skipped_info = TRUE;
+ if (gdk_pixbuf_buffer_queue_get_size (ctx->input) >= ctx->hdr->infolen) {
+ gdk_pixbuf_buffer_queue_flush (ctx->input, ctx->hdr->infolen);
} else {
return TRUE;
}
}
if (!ctx->cmap) {
- if (ctx->in->size >= ctx->cmap_size) {
+ if (gdk_pixbuf_buffer_queue_get_size (ctx->input) >= ctx->cmap_size) {
if (!try_colormap(ctx, err))
return FALSE;
} else {
@@ -901,11 +843,7 @@ static gpointer gdk_pixbuf__tga_begin_load(GdkPixbufModuleSizeFunc f0,
ctx->pbuf_bytes_done = 0;
ctx->pptr = NULL;
- ctx->in = io_buffer_new(err);
- if (!ctx->in) {
- g_free(ctx);
- return NULL;
- }
+ ctx->input = gdk_pixbuf_buffer_queue_new ();
ctx->skipped_info = FALSE;
ctx->prepared = FALSE;
@@ -931,30 +869,25 @@ static gboolean gdk_pixbuf__tga_load_increment(gpointer data,
return TRUE;
g_return_val_if_fail(buffer != NULL, TRUE);
- ctx->in = io_buffer_append(ctx->in, buffer, size, err);
- if (!ctx->in)
- return FALSE;
+ gdk_pixbuf_buffer_queue_push (ctx->input, g_bytes_new (buffer, size));
+
if (!ctx->prepared) {
if (!try_preload(ctx, err))
return FALSE;
if (!ctx->prepared)
return TRUE;
- if (ctx->in->size == 0)
- return TRUE;
}
if (ctx->run_length_encoded) {
- if (!parse_rle_data(ctx, err))
- return FALSE;
+ parse_rle_data (ctx);
} else {
- while (ctx->in->size >= ctx->rowstride) {
+ while (gdk_pixbuf_buffer_queue_get_size (ctx->input) >= ctx->rowstride) {
if (ctx->completed_lines >= ctx->pbuf->height) {
g_set_error_literal(err, GDK_PIXBUF_ERROR, GDK_PIXBUF_ERROR_FAILED,
_("Excess data in file"));
return FALSE;
}
- if (!parse_data_for_row(ctx, err))
- return FALSE;
+ parse_data_for_row (ctx);
ctx->completed_lines++;
}
}
@@ -982,13 +915,7 @@ static gboolean gdk_pixbuf__tga_stop_load(gpointer data, GError **err)
colormap_free (ctx->cmap);
if (ctx->pbuf)
g_object_unref (ctx->pbuf);
- if (ctx->in && ctx->in->size)
- ctx->in = io_buffer_free_segment (ctx->in, ctx->in->size, err);
- if (!ctx->in) {
- g_free (ctx);
- return FALSE;
- }
- io_buffer_free (ctx->in);
+ gdk_pixbuf_buffer_queue_unref (ctx->input);
g_free (ctx);
return TRUE;
}
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
