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mutter/cogl/cogl-gpu-info.c
Robert Bragg 8de1f83b1c gpu-info: consider "(Core Profile)" GL version annotation 
Mesa annotates the GL version string with "(Core Profile)" when using
the OpenGL 3 core profile and so our heuristics that try and determine
what vendor and GPU is being used where being confused. This updates
the check_mesa_driver_package() function to consider this optional
annotation.

This adds a small unit test to verify the parsing of some example
version strings. We can update this with more real world version strings
if the format changes again in the future.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 1a074173d20857c7bedb6a862958713e5ef8d2d1)
2013-07-19 13:53:52 +01:00

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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2012 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#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 */)
{
const CoglGpuInfoStrings test_strings[] = {
{ .version_string = "3.1 Mesa 9.2-devel15436ad" },
{ .version_string = "3.1 (Core Profile) Mesa 9.2.0-devel (git-15436ad)" }
};
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;
}
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