src/gallium/drivers/softpipe/sp_state_image.c

   1 /*
   2  * Copyright 2016 Red Hat.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "sp_context.h"
  25 #include "sp_state.h"
  26 #include "sp_image.h"
  27 #include "sp_buffer.h"
  28
  29 static void softpipe_set_shader_images(struct pipe_context *pipe,
  30                                        enum pipe_shader_type shader,
  31                                        unsigned start,
  32                                        unsigned num,
  33                                        const struct pipe_image_view *images)
  34 {
  35    struct softpipe_context *softpipe = softpipe_context(pipe);
  36    unsigned i;
  37    assert(shader < PIPE_SHADER_TYPES);
  38    assert(start + num <= ARRAY_SIZE(softpipe->sampler_views[shader]));
  39
  40    /* set the new images */
  41    for (i = 0; i < num; i++) {
  42       int idx = start + i;
  43
  44       if (images) {
  45          pipe_resource_reference(&softpipe->tgsi.image[shader]->sp_iview[idx].resource, images[i].resource);
  46          softpipe->tgsi.image[shader]->sp_iview[idx] = images[i];
  47       }
  48       else {
  49          pipe_resource_reference(&softpipe->tgsi.image[shader]->sp_iview[idx].resource, NULL);
  50          memset(&softpipe->tgsi.image[shader]->sp_iview[idx], 0, sizeof(struct pipe_image_view));
  51       }
  52    }
  53 }
  54
  55 static void softpipe_set_shader_buffers(struct pipe_context *pipe,
  56                                         enum pipe_shader_type shader,
  57                                         unsigned start,
  58                                         unsigned num,
  59                                         const struct pipe_shader_buffer *buffers,
  60                                         unsigned writable_bitmask)
  61 {
  62    struct softpipe_context *softpipe = softpipe_context(pipe);
  63    unsigned i;
  64    assert(shader < PIPE_SHADER_TYPES);
  65    assert(start + num <= ARRAY_SIZE(softpipe->buffers[shader]));
  66
  67    /* set the new images */
  68    for (i = 0; i < num; i++) {
  69       int idx = start + i;
  70
  71       if (buffers) {
  72          pipe_resource_reference(&softpipe->tgsi.buffer[shader]->sp_bview[idx].buffer, buffers[i].buffer);
  73          softpipe->tgsi.buffer[shader]->sp_bview[idx] = buffers[i];
  74       }
  75       else {
  76          pipe_resource_reference(&softpipe->tgsi.buffer[shader]->sp_bview[idx].buffer, NULL);
  77          memset(&softpipe->tgsi.buffer[shader]->sp_bview[idx], 0, sizeof(struct pipe_shader_buffer));
  78       }
  79    }
  80 }
  81
  82 void softpipe_init_image_funcs(struct pipe_context *pipe)
  83 {
  84    pipe->set_shader_images = softpipe_set_shader_images;
  85    pipe->set_shader_buffers = softpipe_set_shader_buffers;
  86 }