[Mesa-dev] [PATCH 08/19] mesa/st: implement memory objects as a backend for texture storage

[Andres Rodriguez]

On 2017-07-11 02:31 PM, Marek Olšák wrote:
> On Sat, Jul 1, 2017 at 1:03 AM, Andres Rodriguez <andresx7 at gmail.com> wrote:
>> From: Dave Airlie <airlied at redhat.com>
>>
>> Instead of allocating memory to back a texture, use the provided memory
>> object.
>>
>> Signed-off-by: Andres Rodriguez <andresx7 at gmail.com>
>> ---
>>   src/mesa/main/mtypes.h                 |   2 +
>>   src/mesa/state_tracker/st_cb_texture.c | 123 +++++++++++++++++++++++++++++++++
>>   src/mesa/state_tracker/st_extensions.c |   5 ++
>>   3 files changed, 130 insertions(+)
>>
>> diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
>> index 8dcc1a8..463f444 100644
>> --- a/src/mesa/main/mtypes.h
>> +++ b/src/mesa/main/mtypes.h
>> @@ -4125,6 +4125,8 @@ struct gl_extensions
>>      GLboolean EXT_framebuffer_sRGB;
>>      GLboolean EXT_gpu_program_parameters;
>>      GLboolean EXT_gpu_shader4;
>> +   GLboolean EXT_memory_object;
>> +   GLboolean EXT_memory_object_fd;
>>      GLboolean EXT_packed_float;
>>      GLboolean EXT_pixel_buffer_object;
>>      GLboolean EXT_point_parameters;
>> diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
>> index 9798321..063f6d6 100644
>> --- a/src/mesa/state_tracker/st_cb_texture.c
>> +++ b/src/mesa/state_tracker/st_cb_texture.c
>> @@ -53,6 +53,7 @@
>>   #include "state_tracker/st_cb_flush.h"
>>   #include "state_tracker/st_cb_texture.h"
>>   #include "state_tracker/st_cb_bufferobjects.h"
>> +#include "state_tracker/st_cb_memoryobjects.h"
>>   #include "state_tracker/st_format.h"
>>   #include "state_tracker/st_pbo.h"
>>   #include "state_tracker/st_texture.h"
>> @@ -2890,6 +2891,125 @@ st_TexParameter(struct gl_context *ctx,
>>      }
>>   }
>>
>> +/**
>> + * Allocate a new pipe_resource object
>> + * width0, height0, depth0 are the dimensions of the level 0 image
>> + * (the highest resolution).  last_level indicates how many mipmap levels
>> + * to allocate storage for.  For non-mipmapped textures, this will be zero.
>> + */
>> +static struct pipe_resource *
>> +st_texture_create_memory(struct st_context *st,
> st_texture_create_from_memory?
Fixing both of these. Dan reported a regression with this latest 
patchset and steamvr on FramebufferTexture(). I'll resend once I get 
that fixed as well.

Regards,
Andres
> Marek