src/gallium/drivers/zink/zink_framebuffer.c

   1 /*
   2  * Copyright 2018 Collabora Ltd.
   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 "zink_context.h"
  25 #include "zink_framebuffer.h"
  26
  27 #include "zink_render_pass.h"
  28 #include "zink_screen.h"
  29 #include "zink_surface.h"
  30
  31 #include "util/u_memory.h"
  32 #include "util/u_string.h"
  33
  34 static struct pipe_surface *
  35 framebuffer_null_surface_init(struct zink_context *ctx, struct zink_framebuffer_state *state)
  36 {
  37    struct pipe_surface surf_templ = {};
  38    unsigned idx = util_logbase2_ceil(MAX2(state->samples, 1));
  39
  40    if (!ctx->null_buffers[idx]) {
  41       struct pipe_resource *pres;
  42       struct pipe_resource templ = {};
  43       templ.width0 = state->width;
  44       templ.height0 = state->height;
  45       templ.depth0 = 1;
  46       templ.format = PIPE_FORMAT_R8_UINT;
  47       templ.target = PIPE_TEXTURE_2D;
  48       templ.bind = PIPE_BIND_RENDER_TARGET;
  49       templ.nr_samples = state->samples;
  50
  51       pres = ctx->base.screen->resource_create(ctx->base.screen, &templ);
  52       if (!pres)
  53          return NULL;
  54
  55       ctx->null_buffers[idx] = pres;
  56    }
  57    surf_templ.format = PIPE_FORMAT_R8_UINT;
  58    surf_templ.nr_samples = state->samples;
  59    return ctx->base.create_surface(&ctx->base, ctx->null_buffers[idx], &surf_templ);
  60 }
  61
  62 void
  63 zink_destroy_framebuffer(struct zink_screen *screen,
  64                          struct zink_framebuffer *fbuf)
  65 {
  66    vkDestroyFramebuffer(screen->dev, fbuf->fb, NULL);
  67    for (int i = 0; i < ARRAY_SIZE(fbuf->surfaces); ++i)
  68       pipe_surface_reference(fbuf->surfaces + i, NULL);
  69
  70    pipe_surface_reference(&fbuf->null_surface, NULL);
  71
  72    zink_render_pass_reference(screen, &fbuf->rp, NULL);
  73
  74    FREE(fbuf);
  75 }
  76
  77 struct zink_framebuffer *
  78 zink_create_framebuffer(struct zink_context *ctx, struct zink_screen *screen,
  79                         struct zink_framebuffer_state *fb)
  80 {
  81    struct zink_framebuffer *fbuf = CALLOC_STRUCT(zink_framebuffer);
  82    if (!fbuf)
  83       return NULL;
  84
  85    pipe_reference_init(&fbuf->reference, 1);
  86
  87    if (fb->has_null_attachments)
  88       fbuf->null_surface = framebuffer_null_surface_init(ctx, fb);
  89
  90    VkImageView attachments[ARRAY_SIZE(fb->attachments)] = {};
  91    for (int i = 0; i < fb->num_attachments; i++) {
  92       struct zink_surface *surf = fb->attachments[i];
  93       if (!surf)
  94          surf = zink_surface(fbuf->null_surface);
  95       pipe_surface_reference(fbuf->surfaces + i, &surf->base);
  96       attachments[i] = surf->image_view;
  97    }
  98
  99    zink_render_pass_reference(screen, &fbuf->rp, fb->rp);
 100
 101    VkFramebufferCreateInfo fci = {};
 102    fci.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
 103    fci.renderPass = fbuf->rp->render_pass;
 104    fci.attachmentCount = fb->num_attachments;
 105    fci.pAttachments = attachments;
 106    fci.width = fb->width;
 107    fci.height = fb->height;
 108    fci.layers = fb->layers;
 109
 110    if (vkCreateFramebuffer(screen->dev, &fci, NULL, &fbuf->fb) != VK_SUCCESS) {
 111       zink_destroy_framebuffer(screen, fbuf);
 112       return NULL;
 113    }
 114
 115    return fbuf;
 116 }
 117
 118 void
 119 debug_describe_zink_framebuffer(char* buf, const struct zink_framebuffer *ptr)
 120 {
 121    sprintf(buf, "zink_framebuffer");
 122 }