Add libva to chromium third_party.

third_party/libva/va/va_fool.c

Index: third_party/libva/va/va_fool.c
diff --git a/third_party/libva/va/va_fool.c b/third_party/libva/va/va_fool.c
new file mode 100644
index 0000000000000000000000000000000000000000..807307e84d92dc16d9af8e6a854fa628d8ca6ccb
--- /dev/null
+++ b/third_party/libva/va/va_fool.c
@@ -0,0 +1,367 @@
+/*
+ * Copyright (c) 2009 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define _GNU_SOURCE 1
+#include "va.h"
+#include "va_backend.h"
+#include "va_trace.h"
+#include "va_fool.h"
+
+#include <assert.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <dlfcn.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <time.h>
+#include <fcntl.h>
+
+/*
+ * Do dummy decode/encode, ignore the input data
+ * In order to debug memory leak or low performance issues, we need to isolate driver problems
+ * We export env "VA_FOOL", with which, we can do fake decode/encode:
+ *
+ * LIBVA_FOOL_DECODE:
+ * . if set, decode does nothing
+ * LIBVA_FOOL_ENCODE=<framename>:
+ * . if set, encode does nothing, but fill in the coded buffer from the content of files with
+ *   name framename.0,framename.1,framename.2, ..., framename.N, framename.N,framename.N,...
+ * LIBVA_FOOL_JPEG=<framename>:fill the content of filename to codedbuf for jpeg encoding
+ * LIBVA_FOOL_POSTP:
+ * . if set, do nothing for vaPutSurface
+ */
+
+
+/* global settings */
+int fool_codec = 0;
+int fool_postp  = 0;
+
+#define FOOL_CONTEXT_MAX 4
+
+#define FOOL_BUFID_MAGIC   0x12345600
+#define FOOL_BUFID_MASK    0xffffff00
+/* per context settings */
+static struct _fool_context {
+    VADisplay dpy; /* should use context as the key */
+
+    char *fn_enc;/* file pattern with codedbuf content for encode */
+    char *segbuf_enc; /* the segment buffer of coded buffer, load frome fn_enc */
+    int file_count;
+
+    char *fn_jpg;/* file name of JPEG fool with codedbuf content */
+    char *segbuf_jpg; /* the segment buffer of coded buffer, load frome fn_jpg */
+
+    VAEntrypoint entrypoint; /* current entrypoint */
+    
+    /* all buffers with same type share one malloc-ed memory
+     * bufferID = (buffer numbers with the same type << 8) || type
+     * the malloc-ed memory can be find by fool_buf[bufferID & 0xff]
+     * the size is ignored here
+     */
+    char *fool_buf[VABufferTypeMax]; /* memory of fool buffers */
+    unsigned int fool_buf_size[VABufferTypeMax]; /* size of memory of fool buffers */
+    unsigned int fool_buf_element[VABufferTypeMax]; /* element count of created buffers */
+    unsigned int fool_buf_count[VABufferTypeMax]; /* count of created buffers */
+    VAContextID context;
+} fool_context[FOOL_CONTEXT_MAX]; /* trace five context at the same time */
+
+#define DPY2INDEX(dpy)                                  \
+    int idx;                                            \
+                                                        \
+    for (idx = 0; idx < FOOL_CONTEXT_MAX; idx++)        \
+        if (fool_context[idx].dpy == dpy)               \
+            break;                                      \
+                                                        \
+    if (idx == FOOL_CONTEXT_MAX)                        \
+        return 0;  /* let driver go */
+
+/* Prototype declarations (functions defined in va.c) */
+
+void va_errorMessage(const char *msg, ...);
+void va_infoMessage(const char *msg, ...);
+
+int  va_parseConfig(char *env, char *env_value);
+
+void va_FoolInit(VADisplay dpy)
+{
+    char env_value[1024];
+    int fool_index = 0;
+
+    for (fool_index = 0; fool_index < FOOL_CONTEXT_MAX; fool_index++)
+        if (fool_context[fool_index].dpy == 0)
+            break;
+
+    if (fool_index == FOOL_CONTEXT_MAX)
+        return;
+
+    memset(&fool_context[fool_index], 0, sizeof(struct _fool_context));
+    if (va_parseConfig("LIBVA_FOOL_POSTP", NULL) == 0) {
+        fool_postp = 1;
+        va_infoMessage("LIBVA_FOOL_POSTP is on, dummy vaPutSurface\n");
+    }
+    
+    if (va_parseConfig("LIBVA_FOOL_DECODE", NULL) == 0) {
+        fool_codec  |= VA_FOOL_FLAG_DECODE;
+        va_infoMessage("LIBVA_FOOL_DECODE is on, dummy decode\n");
+    }
+    if (va_parseConfig("LIBVA_FOOL_ENCODE", &env_value[0]) == 0) {
+        fool_codec  |= VA_FOOL_FLAG_ENCODE;
+        fool_context[fool_index].fn_enc = strdup(env_value);
+        va_infoMessage("LIBVA_FOOL_ENCODE is on, load encode data from file with patten %s\n",
+                       fool_context[fool_index].fn_enc);
+    }
+    if (va_parseConfig("LIBVA_FOOL_JPEG", &env_value[0]) == 0) {
+        fool_codec  |= VA_FOOL_FLAG_JPEG;
+        fool_context[fool_index].fn_jpg = strdup(env_value);
+        va_infoMessage("LIBVA_FOOL_JPEG is on, load encode data from file with patten %s\n",
+                       fool_context[fool_index].fn_jpg);
+    }
+    
+    if (fool_codec)
+        fool_context[fool_index].dpy = dpy;
+}
+
+
+int va_FoolEnd(VADisplay dpy)
+{
+    int i;
+    DPY2INDEX(dpy);
+
+    for (i = 0; i < VABufferTypeMax; i++) {/* free memory */
+        if (fool_context[idx].fool_buf[i])
+            free(fool_context[idx].fool_buf[i]);
+    }
+    if (fool_context[idx].segbuf_enc)
+        free(fool_context[idx].segbuf_enc);
+    if (fool_context[idx].segbuf_jpg)
+        free(fool_context[idx].segbuf_jpg);
+    if (fool_context[idx].fn_enc)
+        free(fool_context[idx].fn_enc);
+    if (fool_context[idx].fn_jpg)
+        free(fool_context[idx].fn_jpg);
+    
+    memset(&fool_context[idx], 0, sizeof(struct _fool_context));
+    
+    return 0;
+}
+
+
+int va_FoolCreateConfig(
+        VADisplay dpy,
+        VAProfile profile, 
+        VAEntrypoint entrypoint, 
+        VAConfigAttrib *attrib_list,
+        int num_attribs,
+        VAConfigID *config_id /* out */
+)
+{
+    DPY2INDEX(dpy);
+
+    fool_context[idx].entrypoint = entrypoint;
+    
+    /*
+     * check fool_codec to align with current context
+     * e.g. fool_codec = decode then for encode, the
+     * vaBegin/vaRender/vaEnd also run into fool path
+     * which is not desired
+     */
+    if (((fool_codec & VA_FOOL_FLAG_DECODE) && (entrypoint == VAEntrypointVLD)) ||
+        ((fool_codec & VA_FOOL_FLAG_ENCODE) && (entrypoint == VAEntrypointEncSlice)) ||
+        ((fool_codec & VA_FOOL_FLAG_JPEG) && (entrypoint == VAEntrypointEncPicture)))
+        ; /* the fool_codec is meaningful */
+    else
+        fool_codec = 0;
+
+    return 0; /* driver continue */
+}
+
+
+VAStatus va_FoolCreateBuffer(
+    VADisplay dpy,
+    VAContextID context,	/* in */
+    VABufferType type,		/* in */
+    unsigned int size,		/* in */
+    unsigned int num_elements,	/* in */
+    void *data,			/* in */
+    VABufferID *buf_id		/* out */
+)
+{
+    unsigned int new_size = size * num_elements;
+    unsigned int old_size;
+    DPY2INDEX(dpy);
+
+    old_size = fool_context[idx].fool_buf_size[type] * fool_context[idx].fool_buf_element[type];
+
+    if (old_size < new_size)
+        fool_context[idx].fool_buf[type] = realloc(fool_context[idx].fool_buf[type], new_size);
+    
+    fool_context[idx].fool_buf_size[type] = size;
+    fool_context[idx].fool_buf_element[type] = num_elements;
+    fool_context[idx].fool_buf_count[type]++;
+    /* because we ignore the vaRenderPicture, 
+     * all buffers with same type share same real memory
+     * bufferID = (magic number) | type
+     */
+    *buf_id = FOOL_BUFID_MAGIC | type;
+
+    return 1; /* don't call into driver */
+}
+
+VAStatus va_FoolBufferInfo(
+    VADisplay dpy,
+    VABufferID buf_id,  /* in */
+    VABufferType *type, /* out */
+    unsigned int *size,         /* out */
+    unsigned int *num_elements /* out */
+)
+{
+    unsigned int magic = buf_id & FOOL_BUFID_MASK;
+    DPY2INDEX(dpy);
+
+    if (magic != FOOL_BUFID_MAGIC)
+        return 0;
+
+    *type = buf_id & 0xff;
+    *size = fool_context[idx].fool_buf_size[*type];
+    *num_elements = fool_context[idx].fool_buf_element[*type];;
+    
+    return 1; /* don't call into driver */
+}
+
+static int va_FoolFillCodedBufEnc(int idx)
+{
+    char file_name[1024];
+    struct stat file_stat;
+    VACodedBufferSegment *codedbuf;
+    int i, fd = -1;
+
+    /* try file_name.file_count, if fail, try file_name.file_count-- */
+    for (i=0; i<=1; i++) {
+        sprintf(file_name, "%s.%d",
+                fool_context[idx].fn_enc,
+                fool_context[idx].file_count);
+
+        if ((fd = open(file_name, O_RDONLY)) != -1) {
+            fstat(fd, &file_stat);
+            fool_context[idx].file_count++; /* open next file */
+            break;
+        }
+        
+        fool_context[idx].file_count--; /* fall back to previous file */
+        if (fool_context[idx].file_count < 0)
+            fool_context[idx].file_count = 0;
+    }
+    if (fd != -1) {
+        fool_context[idx].segbuf_enc = realloc(fool_context[idx].segbuf_enc, file_stat.st_size);
+        read(fd, fool_context[idx].segbuf_enc, file_stat.st_size);
+        close(fd);
+    }
+    codedbuf = (VACodedBufferSegment *)fool_context[idx].fool_buf[VAEncCodedBufferType];
+    codedbuf->size = file_stat.st_size;
+    codedbuf->bit_offset = 0;
+    codedbuf->status = 0;
+    codedbuf->reserved = 0;
+    codedbuf->buf = fool_context[idx].segbuf_enc;
+    codedbuf->next = NULL;
+
+    return 0;
+}
+
+
+static int va_FoolFillCodedBufJPG(int idx)
+{
+    struct stat file_stat;
+    VACodedBufferSegment *codedbuf;
+    int i, fd = -1;
+
+    if ((fd = open(fool_context[idx].fn_jpg, O_RDONLY)) != -1)
+        fstat(fd, &file_stat);
+        
+    if (fd != -1) {
+        fool_context[idx].segbuf_jpg = realloc(fool_context[idx].segbuf_jpg, file_stat.st_size);
+        read(fd, fool_context[idx].segbuf_jpg, file_stat.st_size);
+        close(fd);
+    }
+    codedbuf = (VACodedBufferSegment *)fool_context[idx].fool_buf[VAEncCodedBufferType];
+    codedbuf->size = file_stat.st_size;
+    codedbuf->bit_offset = 0;
+    codedbuf->status = 0;
+    codedbuf->reserved = 0;
+    codedbuf->buf = fool_context[idx].segbuf_jpg;
+    codedbuf->next = NULL;
+
+    return 0;
+}
+
+
+static int va_FoolFillCodedBuf(int idx)
+{
+    if (fool_context[idx].entrypoint == VAEntrypointEncSlice)
+        va_FoolFillCodedBufEnc(idx);
+    else if (fool_context[idx].entrypoint == VAEntrypointEncPicture)
+        va_FoolFillCodedBufJPG(idx);
+        
+    return 0;
+}
+
+
+VAStatus va_FoolMapBuffer(
+    VADisplay dpy,
+    VABufferID buf_id,	/* in */
+    void **pbuf 	/* out */
+)
+{
+    unsigned int buftype = buf_id & 0xff;
+    unsigned int magic = buf_id & FOOL_BUFID_MASK;
+    DPY2INDEX(dpy);
+
+    if (magic != FOOL_BUFID_MAGIC)
+        return 0;
+
+    /* buf_id is the buffer type */
+    *pbuf = fool_context[idx].fool_buf[buftype];
+
+    /* it is coded buffer, fill the fake segment buf from file */
+    if (*pbuf && (buftype == VAEncCodedBufferType))
+        va_FoolFillCodedBuf(idx);
+    
+    return 1; /* don't call into driver */
+}
+
+VAStatus va_FoolUnmapBuffer(
+        VADisplay dpy,
+        VABufferID buf_id	/* in */
+)
+{
+    unsigned int magic = buf_id & FOOL_BUFID_MASK;
+
+    if (magic != FOOL_BUFID_MAGIC)
+        return 0;
+
+    return 1;
+}