mirror of
https://github.com/brl/mutter.git
synced 2024-09-20 06:25:51 -04:00
41d59c0af7
There seem to be other cases where the slow path is hit even with mesa 9.0. https://bugzilla.gnome.org/show_bug.cgi?id=685915 (cherry picked from commit 6b14fa222bafb7e67c4845b26439322b34ac26a2)
552 lines
14 KiB
C
552 lines
14 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2012 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <errno.h>
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#include "cogl-gpu-info-private.h"
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#include "cogl-context-private.h"
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#include "cogl-version.h"
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typedef struct
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{
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const char *renderer_string;
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const char *version_string;
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const char *vendor_string;
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} CoglGpuInfoStrings;
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typedef struct CoglGpuInfoArchitectureDescription
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{
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CoglGpuInfoArchitecture architecture;
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const char *name;
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CoglGpuInfoArchitectureFlag flags;
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CoglBool (* check_function) (const CoglGpuInfoStrings *strings);
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} CoglGpuInfoArchitectureDescription;
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typedef struct
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{
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CoglGpuInfoVendor vendor;
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const char *name;
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CoglBool (* check_function) (const CoglGpuInfoStrings *strings);
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const CoglGpuInfoArchitectureDescription *architectures;
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} CoglGpuInfoVendorDescription;
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typedef struct
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{
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CoglGpuInfoDriverPackage driver_package;
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const char *name;
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CoglBool (* check_function) (const CoglGpuInfoStrings *strings,
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int *version_out);
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} CoglGpuInfoDriverPackageDescription;
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static CoglBool
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_cogl_gpu_info_parse_version_string (const char *version_string,
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int n_components,
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const char **tail,
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int *version_ret)
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{
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int version = 0;
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uint64_t part;
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int i;
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for (i = 0; ; i++)
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{
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errno = 0;
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part = g_ascii_strtoull (version_string,
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(char **) &version_string,
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10);
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if (errno || part > COGL_VERSION_MAX_COMPONENT_VALUE)
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return FALSE;
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version |= part << ((2 - i) * COGL_VERSION_COMPONENT_BITS);
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if (i + 1 >= n_components)
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break;
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if (*version_string != '.')
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return FALSE;
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version_string++;
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}
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if (version_ret)
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*version_ret = version;
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if (tail)
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*tail = version_string;
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return TRUE;
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}
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static CoglBool
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match_phrase (const char *string, const char *phrase)
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{
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const char *part = strstr (string, phrase);
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int len;
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if (part == NULL)
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return FALSE;
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/* The match must either be at the beginning of the string or
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preceded by a space. */
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if (part > string && part[-1] != ' ')
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return FALSE;
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/* Also match must either be at end of string or followed by a
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* space. */
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len = strlen (phrase);
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if (part[len] != '\0' && part[len] != ' ')
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_intel_vendor (const CoglGpuInfoStrings *strings)
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{
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return match_phrase (strings->renderer_string, "Intel(R)");
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}
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static CoglBool
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check_imagination_technologies_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "Imagination Technologies") != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_arm_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "ARM") != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_qualcomm_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "Qualcomm") != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_nvidia_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "NVIDIA") != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_ati_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "ATI") != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_mesa_vendor (const CoglGpuInfoStrings *strings)
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{
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if (strcmp (strings->vendor_string, "Tungsten Graphics, Inc") == 0)
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return TRUE;
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else if (strcmp (strings->vendor_string, "VMware, Inc.") == 0)
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return TRUE;
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else if (strcmp (strings->vendor_string, "Mesa Project") == 0)
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return TRUE;
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return FALSE;
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}
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static CoglBool
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check_true (const CoglGpuInfoStrings *strings)
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{
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/* This is a last resort so it always matches */
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return TRUE;
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}
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static CoglBool
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check_sandybridge_architecture (const CoglGpuInfoStrings *strings)
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{
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return match_phrase (strings->renderer_string, "Sandybridge");
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}
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static CoglBool
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check_llvmpipe_architecture (const CoglGpuInfoStrings *strings)
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{
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return match_phrase (strings->renderer_string, "llvmpipe");
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}
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static CoglBool
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check_softpipe_architecture (const CoglGpuInfoStrings *strings)
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{
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return match_phrase (strings->renderer_string, "softpipe");
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}
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static CoglBool
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check_swrast_architecture (const CoglGpuInfoStrings *strings)
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{
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return match_phrase (strings->renderer_string, "software rasterizer") ||
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match_phrase (strings->renderer_string, "Software Rasterizer");
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}
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static CoglBool
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check_sgx_architecture (const CoglGpuInfoStrings *strings)
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{
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if (strncmp (strings->renderer_string, "PowerVR SGX", 12) != 0)
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return FALSE;
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return TRUE;
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}
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static CoglBool
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check_mali_architecture (const CoglGpuInfoStrings *strings)
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{
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if (strncmp (strings->renderer_string, "Mali-", 5) != 0)
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return FALSE;
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return TRUE;
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}
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static const CoglGpuInfoArchitectureDescription
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intel_architectures[] =
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{
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{
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COGL_GPU_INFO_ARCHITECTURE_SANDYBRIDGE,
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"Sandybridge",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
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check_sandybridge_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
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"Unknown",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
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check_true
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}
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};
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static const CoglGpuInfoArchitectureDescription
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powervr_architectures[] =
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{
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{
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COGL_GPU_INFO_ARCHITECTURE_SGX,
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"SGX",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_DEFERRED,
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check_sgx_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
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"Unknown",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED,
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check_true
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}
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};
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static const CoglGpuInfoArchitectureDescription
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arm_architectures[] =
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{
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{
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COGL_GPU_INFO_ARCHITECTURE_MALI,
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"Mali",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
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check_mali_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
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"Unknown",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_TILED |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
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check_true
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}
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};
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static const CoglGpuInfoArchitectureDescription
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mesa_architectures[] =
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{
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{
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COGL_GPU_INFO_ARCHITECTURE_LLVMPIPE,
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"LLVM Pipe",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
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check_llvmpipe_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_SOFTPIPE,
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"Softpipe",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
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check_softpipe_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_SWRAST,
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"SWRast",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_SOFTWARE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_SOFTWARE,
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check_swrast_architecture
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},
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{
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COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
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"Unknown",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_FRAGMENT_IMMEDIATE_MODE,
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check_true
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}
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};
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static const CoglGpuInfoArchitectureDescription
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unknown_architectures[] =
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{
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{
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COGL_GPU_INFO_ARCHITECTURE_UNKNOWN,
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"Unknown",
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE |
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COGL_GPU_INFO_ARCHITECTURE_FLAG_VERTEX_IMMEDIATE_MODE,
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check_true
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}
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};
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static const CoglGpuInfoVendorDescription
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_cogl_gpu_info_vendors[] =
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{
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{
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COGL_GPU_INFO_VENDOR_INTEL,
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"Intel",
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check_intel_vendor,
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intel_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_IMAGINATION_TECHNOLOGIES,
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"Imagination Technologies",
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check_imagination_technologies_vendor,
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powervr_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_ARM,
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"ARM",
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check_arm_vendor,
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arm_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_QUALCOMM,
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"Qualcomm",
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check_qualcomm_vendor,
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unknown_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_NVIDIA,
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"Nvidia",
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check_nvidia_vendor,
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unknown_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_ATI,
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"ATI",
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check_ati_vendor,
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unknown_architectures
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},
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/* Must be last */
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{
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COGL_GPU_INFO_VENDOR_MESA,
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"Mesa",
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check_mesa_vendor,
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mesa_architectures
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},
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{
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COGL_GPU_INFO_VENDOR_UNKNOWN,
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"Unknown",
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check_true,
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unknown_architectures
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}
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};
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static CoglBool
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check_mesa_driver_package (const CoglGpuInfoStrings *strings,
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int *version_ret)
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{
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uint64_t micro_part;
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const char *v;
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/* The version string should always begin a two-part GL version
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number */
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if (!_cogl_gpu_info_parse_version_string (strings->version_string,
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2, /* n_components */
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&v, /* tail */
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NULL /* version_ret */))
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return FALSE;
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/* In mesa this will be followed by a space and the name "Mesa" */
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if (!g_str_has_prefix (v, " Mesa "))
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return FALSE;
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v += 6;
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/* Next there will be a version string that is at least two
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components. On a git devel build the version will be something
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like "-devel<git hash>" instead */
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if (!_cogl_gpu_info_parse_version_string (v,
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2, /* n_components */
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&v, /* tail */
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version_ret))
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return FALSE;
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/* If it is a development build then we'll just leave the micro
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number as 0 */
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if (g_str_has_prefix (v, "-devel"))
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return TRUE;
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/* Otherwise there should be a micro version number */
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if (*v != '.')
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return FALSE;
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errno = 0;
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micro_part = g_ascii_strtoull (v + 1, NULL /* endptr */, 10 /* base */);
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if (errno || micro_part > COGL_VERSION_MAX_COMPONENT_VALUE)
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return FALSE;
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*version_ret = COGL_VERSION_ENCODE (COGL_VERSION_GET_MAJOR (*version_ret),
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COGL_VERSION_GET_MINOR (*version_ret),
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micro_part);
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return TRUE;
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}
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static CoglBool
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check_unknown_driver_package (const CoglGpuInfoStrings *strings,
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int *version_out)
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{
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*version_out = 0;
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/* This is a last resort so it always matches */
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return TRUE;
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}
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static const CoglGpuInfoDriverPackageDescription
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_cogl_gpu_info_driver_packages[] =
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{
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{
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COGL_GPU_INFO_DRIVER_PACKAGE_MESA,
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"Mesa",
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check_mesa_driver_package
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},
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/* Must be last */
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{
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COGL_GPU_INFO_DRIVER_PACKAGE_UNKNOWN,
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"Unknown",
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check_unknown_driver_package
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}
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};
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void
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_cogl_gpu_info_init (CoglContext *ctx,
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CoglGpuInfo *gpu)
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{
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CoglGpuInfoStrings strings;
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int i;
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strings.renderer_string = (const char *) ctx->glGetString (GL_RENDERER);
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strings.version_string = _cogl_context_get_gl_version (ctx);
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strings.vendor_string = (const char *) ctx->glGetString (GL_VENDOR);
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/* Determine the driver package */
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for (i = 0; ; i++)
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{
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const CoglGpuInfoDriverPackageDescription *description =
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_cogl_gpu_info_driver_packages + i;
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if (description->check_function (&strings, &gpu->driver_package_version))
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{
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gpu->driver_package = description->driver_package;
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gpu->driver_package_name = description->name;
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break;
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}
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}
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/* Determine the GPU vendor */
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for (i = 0; ; i++)
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{
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const CoglGpuInfoVendorDescription *description =
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_cogl_gpu_info_vendors + i;
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if (description->check_function (&strings))
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{
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int j;
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gpu->vendor = description->vendor;
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gpu->vendor_name = description->name;
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for (j = 0; ; j++)
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{
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const CoglGpuInfoArchitectureDescription *architecture =
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description->architectures + j;
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if (architecture->check_function (&strings))
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{
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gpu->architecture = architecture->architecture;
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gpu->architecture_name = architecture->name;
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gpu->architecture_flags = architecture->flags;
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goto probed;
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}
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}
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}
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}
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probed:
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COGL_NOTE (WINSYS, "Driver package = %s, vendor = %s, architecture = %s\n",
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gpu->driver_package_name,
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gpu->vendor_name,
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gpu->architecture_name);
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/* Determine the driver bugs */
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/* In Mesa the glReadPixels implementation is really slow
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when using the Intel driver. The Intel
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driver has a fast blit path when reading into a PBO. Reading into
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a temporary PBO and then memcpying back out to the application's
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memory is faster than a regular glReadPixels in this case */
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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;
|
|
}
|