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vrend: Ensure that buffer creation doesn't bleed into the texture allocation

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If the bind flags are not correct then the default code path would try to
create a texture with PIPE_BUFFER as target. Reorder the checks to bail out
in this case after freeing the memory.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
macos/master
Gert Wollny 5 years ago
parent 24f67de7a9
commit a156652047
1 changed files with 44 additions and 39 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 83
      src/vrend_renderer.c

83
src/vrend_renderer.c
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@ -6536,41 +6536,41 @@ int vrend_renderer_resource_create(struct vrend_renderer_resource_create_args *a
pipe_reference_init(&gr->base.reference, 1);
if (args->bind == VIRGL_BIND_CUSTOM) {
assert(args->target == PIPE_BUFFER);
/* use iovec directly when attached */
gr->storage = VREND_RESOURCE_STORAGE_GUEST_ELSE_SYSTEM;
gr->ptr = malloc(args->width);
if (!gr->ptr) {
FREE(gr);
return ENOMEM;
}
} else if (args->bind == VIRGL_BIND_STAGING) {
/* Staging buffers use only guest memory. */
gr->storage = VREND_RESOURCE_STORAGE_GUEST;
} else if (args->bind == VIRGL_BIND_INDEX_BUFFER) {
gr->target = GL_ELEMENT_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_STREAM_OUTPUT) {
gr->target = GL_TRANSFORM_FEEDBACK_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_VERTEX_BUFFER) {
gr->target = GL_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_CONSTANT_BUFFER) {
gr->target = GL_UNIFORM_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_QUERY_BUFFER) {
gr->target = GL_QUERY_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_COMMAND_ARGS) {
gr->target = GL_DRAW_INDIRECT_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->target == PIPE_BUFFER && (args->bind == 0 || args->bind == VIRGL_BIND_SHADER_BUFFER)) {
gr->target = GL_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->target == PIPE_BUFFER && (args->bind & VIRGL_BIND_SAMPLER_VIEW)) {
/*
if (args->target == PIPE_BUFFER) {
if (args->bind == VIRGL_BIND_CUSTOM) {
/* use iovec directly when attached */
gr->storage = VREND_RESOURCE_STORAGE_GUEST_ELSE_SYSTEM;
gr->ptr = malloc(args->width);
if (!gr->ptr) {
FREE(gr);
return ENOMEM;
}
} else if (args->bind == VIRGL_BIND_STAGING) {
/* Staging buffers use only guest memory. */
gr->storage = VREND_RESOURCE_STORAGE_GUEST;
} else if (args->bind == VIRGL_BIND_INDEX_BUFFER) {
gr->target = GL_ELEMENT_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_STREAM_OUTPUT) {
gr->target = GL_TRANSFORM_FEEDBACK_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_VERTEX_BUFFER) {
gr->target = GL_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_CONSTANT_BUFFER) {
gr->target = GL_UNIFORM_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_QUERY_BUFFER) {
gr->target = GL_QUERY_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == VIRGL_BIND_COMMAND_ARGS) {
gr->target = GL_DRAW_INDIRECT_BUFFER;
vrend_create_buffer(gr, args->width);
} else if (args->bind == 0 || args->bind == VIRGL_BIND_SHADER_BUFFER) {
gr->target = GL_ARRAY_BUFFER_ARB;
vrend_create_buffer(gr, args->width);
} else if (args->bind & VIRGL_BIND_SAMPLER_VIEW) {
/*
* On Desktop we use GL_ARB_texture_buffer_object on GLES we use
* GL_EXT_texture_buffer (it is in the ANDRIOD extension pack).
*/
@ -6579,12 +6579,17 @@ int vrend_renderer_resource_create(struct vrend_renderer_resource_create_args *a
#endif
/* need to check GL version here */
if (has_feature(feat_arb_or_gles_ext_texture_buffer)) {
gr->target = GL_TEXTURE_BUFFER;
if (has_feature(feat_arb_or_gles_ext_texture_buffer)) {
gr->target = GL_TEXTURE_BUFFER;
} else {
gr->target = GL_PIXEL_PACK_BUFFER_ARB;
}
vrend_create_buffer(gr, args->width);
} else {
gr->target = GL_PIXEL_PACK_BUFFER_ARB;
vrend_printf("%s: Illegal buffer binding flags 0x%x\n", __func__, args->bind);
FREE(gr);
return EINVAL;
}
vrend_create_buffer(gr, args->width);
} else {
int r = vrend_renderer_resource_allocate_texture(gr, image_oes);
if (r) {

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