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backends/native: Don't use software renderer for GPU copy

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If the GPU copy path would use a software renderer, fall back to the CPU
copy path. The CPU copy path is possibly faster and avoids screen
corruption issues that were observed on an Intel Haswell desktop. The
corruption was likely due to texturing from an unfinished rendering or
memory caching issues.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/325
This commit is contained in:
Emilio Pozuelo Monfort 2018-10-23 10:09:22 +02:00 committed by Pekka Paalanen
parent a62dbc6680
commit b76bf20092
1 changed files with 14 additions and 5 deletions
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19
src/backends/native/meta-renderer-native.c
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@ -3364,7 +3364,6 @@ init_secondary_gpu_data_gpu (MetaRendererNativeGpuData *renderer_gpu_data,
EGLContext egl_context;
const char **missing_gl_extensions;
const char *renderer_str;
gboolean is_hardware;
if (!create_secondary_egl_config (egl, renderer_gpu_data->mode, egl_display,
&egl_config, error))
@ -3391,9 +3390,19 @@ init_secondary_gpu_data_gpu (MetaRendererNativeGpuData *renderer_gpu_data,
if (g_str_has_prefix (renderer_str, "llvmpipe") ||
g_str_has_prefix (renderer_str, "softpipe") ||
g_str_has_prefix (renderer_str, "swrast"))
is_hardware = FALSE;
else
is_hardware = TRUE;
{
meta_egl_make_current (egl,
egl_display,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT,
NULL);
meta_egl_destroy_context (egl, egl_display, egl_context, NULL);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Do not want to use software renderer (%s), falling back to CPU copy path",
renderer_str);
return FALSE;
}
if (!meta_gles3_has_extensions (renderer_native->gles3,
&missing_gl_extensions,
@ -3411,7 +3420,7 @@ init_secondary_gpu_data_gpu (MetaRendererNativeGpuData *renderer_gpu_data,
g_free (missing_gl_extensions);
}
renderer_gpu_data->secondary.is_hardware_rendering = is_hardware;
renderer_gpu_data->secondary.is_hardware_rendering = TRUE;
renderer_gpu_data->secondary.egl_context = egl_context;
renderer_gpu_data->secondary.egl_config = egl_config;
renderer_gpu_data->secondary.copy_mode = META_SHARED_FRAMEBUFFER_COPY_MODE_GPU;