mutter/cogl/cogl-gpu-info.c
Robert Bragg a0441778ad This re-licenses Cogl 1.18 under the MIT license
Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.

This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html

Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)

For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10  0bbf50f905..HEAD

We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html

Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January

As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.

This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
2014-02-22 02:02:53 +00:00

582 lines
15 KiB
C

/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2012 Intel Corporation.
*
* 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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.
*
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <errno.h>
#include <test-fixtures/test-unit.h>
#include "cogl-gpu-info-private.h"
#include "cogl-context-private.h"
#include "cogl-version.h"
typedef struct
{
const char *renderer_string;
const char *version_string;
const char *vendor_string;
} CoglGpuInfoStrings;
typedef struct CoglGpuInfoArchitectureDescription
{
CoglGpuInfoArchitecture architecture;
const char *name;
CoglGpuInfoArchitectureFlag flags;
CoglBool (* check_function) (const CoglGpuInfoStrings *strings);
} CoglGpuInfoArchitectureDescription;
typedef struct
{
CoglGpuInfoVendor vendor;
const char *name;
CoglBool (* check_function) (const CoglGpuInfoStrings *strings);
const CoglGpuInfoArchitectureDescription *architectures;
} CoglGpuInfoVendorDescription;
typedef struct
{
CoglGpuInfoDriverPackage driver_package;
const char *name;
CoglBool (* check_function) (const CoglGpuInfoStrings *strings,
int *version_out);
} CoglGpuInfoDriverPackageDescription;
static CoglBool
_cogl_gpu_info_parse_version_string (const char *version_string,
int n_components,
const char **tail,
int *version_ret)
{
int version = 0;
uint64_t part;
int i;
for (i = 0; ; i++)
{
errno = 0;
part = g_ascii_strtoull (version_string,
(char **) &version_string,
10);
if (errno || part > COGL_VERSION_MAX_COMPONENT_VALUE)
return FALSE;
version |= part << ((2 - i) * COGL_VERSION_COMPONENT_BITS);
if (i + 1 >= n_components)
break;
if (*version_string != '.')
return FALSE;
version_string++;
}
if (version_ret)
*version_ret = version;
if (tail)
*tail = version_string;
return TRUE;
}
static CoglBool
match_phrase (const char *string, const char *phrase)
{
const char *part = strstr (string, phrase);
int len;
if (part == NULL)
return FALSE;
/* The match must either be at the beginning of the string or
preceded by a space. */
if (part > string && part[-1] != ' ')
return FALSE;
/* Also match must either be at end of string or followed by a
* space. */
len = strlen (phrase);
if (part[len] != '\0' && part[len] != ' ')
return FALSE;
return TRUE;
}
static CoglBool
check_intel_vendor (const CoglGpuInfoStrings *strings)
{
return match_phrase (strings->renderer_string, "Intel(R)");
}
static CoglBool
check_imagination_technologies_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "Imagination Technologies") != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_arm_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "ARM") != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_qualcomm_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "Qualcomm") != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_nvidia_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "NVIDIA") != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_ati_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "ATI") != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_mesa_vendor (const CoglGpuInfoStrings *strings)
{
if (strcmp (strings->vendor_string, "Tungsten Graphics, Inc") == 0)
return TRUE;
else if (strcmp (strings->vendor_string, "VMware, Inc.") == 0)
return TRUE;
else if (strcmp (strings->vendor_string, "Mesa Project") == 0)
return TRUE;
return FALSE;
}
static CoglBool
check_true (const CoglGpuInfoStrings *strings)
{
/* This is a last resort so it always matches */
return TRUE;
}
static CoglBool
check_sandybridge_architecture (const CoglGpuInfoStrings *strings)
{
return match_phrase (strings->renderer_string, "Sandybridge");
}
static CoglBool
check_llvmpipe_architecture (const CoglGpuInfoStrings *strings)
{
return match_phrase (strings->renderer_string, "llvmpipe");
}
static CoglBool
check_softpipe_architecture (const CoglGpuInfoStrings *strings)
{
return match_phrase (strings->renderer_string, "softpipe");
}
static CoglBool
check_swrast_architecture (const CoglGpuInfoStrings *strings)
{
return match_phrase (strings->renderer_string, "software rasterizer") ||
match_phrase (strings->renderer_string, "Software Rasterizer");
}
static CoglBool
check_sgx_architecture (const CoglGpuInfoStrings *strings)
{
if (strncmp (strings->renderer_string, "PowerVR SGX", 12) != 0)
return FALSE;
return TRUE;
}
static CoglBool
check_mali_architecture (const CoglGpuInfoStrings *strings)
{
if (strncmp (strings->renderer_string, "Mali-", 5) != 0)
return FALSE;
return TRUE;
}
static const CoglGpuInfoArchitectureDescription
intel_architectures[] =
{
{
COGL_GPU_INFO_ARCHITECTURE_SANDYBRIDGE,
"Sandybridge",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
check_sandybridge_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
"Unknown",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
check_true
}
};
static const CoglGpuInfoArchitectureDescription
powervr_architectures[] =
{
{
COGL_GPU_INFO_ARCHITECTURE_SGX,
"SGX",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_DEFERRED,
check_sgx_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
"Unknown",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED,
check_true
}
};
static const CoglGpuInfoArchitectureDescription
arm_architectures[] =
{
{
COGL_GPU_INFO_ARCHITECTURE_MALI,
"Mali",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
check_mali_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
"Unknown",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
check_true
}
};
static const CoglGpuInfoArchitectureDescription
mesa_architectures[] =
{
{
COGL_GPU_INFO_ARCHITECTURE_LLVMPIPE,
"LLVM Pipe",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
check_llvmpipe_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_SOFTPIPE,
"Softpipe",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
check_softpipe_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_SWRAST,
"SWRast",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
check_swrast_architecture
},
{
COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
"Unknown",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
check_true
}
};
static const CoglGpuInfoArchitectureDescription
unknown_architectures[] =
{
{
COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
"Unknown",
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE,
check_true
}
};
static const CoglGpuInfoVendorDescription
_cogl_gpu_info_vendors[] =
{
{
COGL_GPU_INFO_VENDOR_INTEL,
"Intel",
check_intel_vendor,
intel_architectures
},
{
COGL_GPU_INFO_VENDOR_IMAGINATION_TECHNOLOGIES,
"Imagination Technologies",
check_imagination_technologies_vendor,
powervr_architectures
},
{
COGL_GPU_INFO_VENDOR_ARM,
"ARM",
check_arm_vendor,
arm_architectures
},
{
COGL_GPU_INFO_VENDOR_QUALCOMM,
"Qualcomm",
check_qualcomm_vendor,
unknown_architectures
},
{
COGL_GPU_INFO_VENDOR_NVIDIA,
"Nvidia",
check_nvidia_vendor,
unknown_architectures
},
{
COGL_GPU_INFO_VENDOR_ATI,
"ATI",
check_ati_vendor,
unknown_architectures
},
/* Must be last */
{
COGL_GPU_INFO_VENDOR_MESA,
"Mesa",
check_mesa_vendor,
mesa_architectures
},
{
COGL_GPU_INFO_VENDOR_UNKNOWN,
"Unknown",
check_true,
unknown_architectures
}
};
static CoglBool
check_mesa_driver_package (const CoglGpuInfoStrings *strings,
int *version_ret)
{
uint64_t micro_part;
const char *v;
/* The version string should always begin a two-part GL version
number */
if (!_cogl_gpu_info_parse_version_string (strings->version_string,
2, /* n_components */
&v, /* tail */
NULL /* version_ret */))
return FALSE;
/* In mesa this will be followed optionally by "(Core Profile)" and
* then "Mesa" */
v = strstr (v, " Mesa ");
if (!v)
return FALSE;
v += 6;
/* Next there will be a version string that is at least two
components. On a git devel build the version will be something
like "-devel<git hash>" instead */
if (!_cogl_gpu_info_parse_version_string (v,
2, /* n_components */
&v, /* tail */
version_ret))
return FALSE;
/* If it is a development build then we'll just leave the micro
number as 0 */
if (g_str_has_prefix (v, "-devel"))
return TRUE;
/* Otherwise there should be a micro version number */
if (*v != '.')
return FALSE;
errno = 0;
micro_part = g_ascii_strtoull (v + 1, NULL /* endptr */, 10 /* base */);
if (errno || micro_part > COGL_VERSION_MAX_COMPONENT_VALUE)
return FALSE;
*version_ret = COGL_VERSION_ENCODE (COGL_VERSION_GET_MAJOR (*version_ret),
COGL_VERSION_GET_MINOR (*version_ret),
micro_part);
return TRUE;
}
UNIT_TEST (check_mesa_driver_package_parser,
0, /* no requirements */
0 /* no failure cases */)
{
/* renderer_string, version_string, vendor_string;*/
const CoglGpuInfoStrings test_strings[2] = {
{ NULL, "3.1 Mesa 9.2-devel15436ad", NULL },
{ NULL, "3.1 (Core Profile) Mesa 9.2.0-devel (git-15436ad)", NULL }
};
int i;
int version;
for (i = 0; i < G_N_ELEMENTS (test_strings); i++)
{
g_assert (check_mesa_driver_package (&test_strings[i], &version));
g_assert_cmpint (version, ==, COGL_VERSION_ENCODE (9, 2, 0));
}
}
static CoglBool
check_unknown_driver_package (const CoglGpuInfoStrings *strings,
int *version_out)
{
*version_out = 0;
/* This is a last resort so it always matches */
return TRUE;
}
static const CoglGpuInfoDriverPackageDescription
_cogl_gpu_info_driver_packages[] =
{
{
COGL_GPU_INFO_DRIVER_PACKAGE_MESA,
"Mesa",
check_mesa_driver_package
},
/* Must be last */
{
COGL_GPU_INFO_DRIVER_PACKAGE_UNKNOWN,
"Unknown",
check_unknown_driver_package
}
};
void
_cogl_gpu_info_init (CoglContext *ctx,
CoglGpuInfo *gpu)
{
CoglGpuInfoStrings strings;
int i;
strings.renderer_string = (const char *) ctx->glGetString (GL_RENDERER);
strings.version_string = _cogl_context_get_gl_version (ctx);
strings.vendor_string = (const char *) ctx->glGetString (GL_VENDOR);
/* Determine the driver package */
for (i = 0; ; i++)
{
const CoglGpuInfoDriverPackageDescription *description =
_cogl_gpu_info_driver_packages + i;
if (description->check_function (&strings, &gpu->driver_package_version))
{
gpu->driver_package = description->driver_package;
gpu->driver_package_name = description->name;
break;
}
}
/* Determine the GPU vendor */
for (i = 0; ; i++)
{
const CoglGpuInfoVendorDescription *description =
_cogl_gpu_info_vendors + i;
if (description->check_function (&strings))
{
int j;
gpu->vendor = description->vendor;
gpu->vendor_name = description->name;
for (j = 0; ; j++)
{
const CoglGpuInfoArchitectureDescription *architecture =
description->architectures + j;
if (architecture->check_function (&strings))
{
gpu->architecture = architecture->architecture;
gpu->architecture_name = architecture->name;
gpu->architecture_flags = architecture->flags;
goto probed;
}
}
}
}
probed:
COGL_NOTE (WINSYS, "Driver package = %s, vendor = %s, architecture = %s\n",
gpu->driver_package_name,
gpu->vendor_name,
gpu->architecture_name);
/* Determine the driver bugs */
/* In Mesa the glReadPixels implementation is really slow
when using the Intel driver. The Intel
driver has a fast blit path when reading into a PBO. Reading into
a temporary PBO and then memcpying back out to the application's
memory is faster than a regular glReadPixels in this case */
if (gpu->vendor == COGL_GPU_INFO_VENDOR_INTEL &&
gpu->driver_package == COGL_GPU_INFO_DRIVER_PACKAGE_MESA)
gpu->driver_bugs |= COGL_GPU_INFO_DRIVER_BUG_MESA_46631_SLOW_READ_PIXELS;
}