ref: e8fc62fc2ae012fafbd3d4f0e48d0f1a145fe8c5
parent: 41e0819960eb2eadc0bfeb550fa2a04f86467d73
author: Marvin Scholz <epirat07@gmail.com>
date: Thu May 14 20:42:32 EDT 2020
Dav1dPlay: Split renderers into different files
--- a/examples/dav1dplay.c
+++ b/examples/dav1dplay.c
@@ -61,633 +61,7 @@
#define DAV1D_EVENT_NEW_FRAME 1
#define DAV1D_EVENT_DEC_QUIT 2
-
-/**
- * Renderer info
- */
-typedef struct rdr_info
-{- // Cookie passed to the renderer implementation callbacks
- void *cookie;
- // Callback to create the renderer
- void* (*create_renderer)(void *data);
- // Callback to destroy the renderer
- void (*destroy_renderer)(void *cookie);
- // Callback to the render function that renders a prevously sent frame
- void (*render)(void *cookie, const Dav1dPlaySettings *settings);
- // Callback to the send frame function
- int (*update_frame)(void *cookie, Dav1dPicture *dav1d_pic,
- const Dav1dPlaySettings *settings);
- // Callback for alloc/release pictures (optional)
- int (*alloc_pic)(Dav1dPicture *pic, void *cookie);
- void (*release_pic)(Dav1dPicture *pic, void *cookie);
-} Dav1dPlayRenderInfo;
-
-#if defined(HAVE_PLACEBO_VULKAN) || defined(HAVE_PLACEBO_OPENGL)
-
-#include <libplacebo/renderer.h>
-#include <libplacebo/utils/upload.h>
-
-#if defined(HAVE_PLACEBO_VULKAN)
-# include <libplacebo/vulkan.h>
-# include <SDL_vulkan.h>
-#elif defined(HAVE_PLACEBO_OPENGL)
-# include <libplacebo/opengl.h>
-# include <SDL_opengl.h>
-#else
-# error Placebo rendering only implemented for Vulkan or OpenGL!
-#endif
-
-
-/**
- * Renderer context for libplacebo
- */
-typedef struct renderer_priv_ctx
-{- // Placebo context
- struct pl_context *ctx;
- // Placebo renderer
- struct pl_renderer *renderer;
-#if defined(HAVE_PLACEBO_VULKAN)
- // Placebo Vulkan handle
- const struct pl_vulkan *vk;
- // Placebo Vulkan instance
- const struct pl_vk_inst *vk_inst;
- // Vulkan surface
- VkSurfaceKHR surf;
-#elif defined(HAVE_PLACEBO_OPENGL)
- // Placebo OpenGL handle
- const struct pl_opengl *gl;
-#endif
- // Placebo GPU
- const struct pl_gpu *gpu;
- // Placebo swapchain
- const struct pl_swapchain *swapchain;
- // Lock protecting access to the texture
- SDL_mutex *lock;
- // Planes to render
- struct pl_plane y_plane;
- struct pl_plane u_plane;
- struct pl_plane v_plane;
- // Textures to render
- const struct pl_tex *y_tex;
- const struct pl_tex *u_tex;
- const struct pl_tex *v_tex;
-} Dav1dPlayRendererPrivateContext;
-
-static void *placebo_renderer_create(void *data)
-{- fprintf(stderr, "Using placebo renderer\n");
- // Alloc
- Dav1dPlayRendererPrivateContext *rd_priv_ctx = malloc(sizeof(Dav1dPlayRendererPrivateContext));
- if (rd_priv_ctx == NULL) {- return NULL;
- }
-
- // Init libplacebo
- rd_priv_ctx->ctx = pl_context_create(PL_API_VER, &(struct pl_context_params) {- .log_cb = pl_log_color,
-#ifndef NDEBUG
- .log_level = PL_LOG_DEBUG,
-#else
- .log_level = PL_LOG_WARN,
-#endif
- });
- if (rd_priv_ctx->ctx == NULL) {- free(rd_priv_ctx);
- return NULL;
- }
-
- // Create Mutex
- rd_priv_ctx->lock = SDL_CreateMutex();
- if (rd_priv_ctx->lock == NULL) {- fprintf(stderr, "SDL_CreateMutex failed: %s\n", SDL_GetError());
- pl_context_destroy(&(rd_priv_ctx->ctx));
- free(rd_priv_ctx);
- return NULL;
- }
-
-
-#if defined(HAVE_PLACEBO_VULKAN)
- // Init Vulkan
- struct pl_vk_inst_params iparams = pl_vk_inst_default_params;
-
- SDL_Window *sdlwin = data;
-
- unsigned num = 0;
- if (!SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, NULL)) {- fprintf(stderr, "Failed enumerating Vulkan extensions: %s\n", SDL_GetError());
- exit(1);
- }
-
- iparams.extensions = malloc(num * sizeof(const char *));
- iparams.num_extensions = num;
- assert(iparams.extensions);
-
- SDL_bool ok = SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, iparams.extensions);
- if (!ok) {- fprintf(stderr, "Failed getting Vk instance extensions\n");
- exit(1);
- }
-
- if (num > 0) {- printf("Requesting %d additional Vulkan extensions:\n", num);- for (unsigned i = 0; i < num; i++)
- printf(" %s\n", iparams.extensions[i]);- }
-
- rd_priv_ctx->vk_inst = pl_vk_inst_create(rd_priv_ctx->ctx, &iparams);
- if (!rd_priv_ctx->vk_inst) {- fprintf(stderr, "Failed creating Vulkan instance!\n");
- exit(1);
- }
- free(iparams.extensions);
-
- if (!SDL_Vulkan_CreateSurface(sdlwin, rd_priv_ctx->vk_inst->instance, &rd_priv_ctx->surf)) {- fprintf(stderr, "Failed creating vulkan surface: %s\n", SDL_GetError());
- exit(1);
- }
-
- struct pl_vulkan_params params = pl_vulkan_default_params;
- params.instance = rd_priv_ctx->vk_inst->instance;
- params.surface = rd_priv_ctx->surf;
- params.allow_software = true;
-
- rd_priv_ctx->vk = pl_vulkan_create(rd_priv_ctx->ctx, ¶ms);
- if (!rd_priv_ctx->vk) {- fprintf(stderr, "Failed creating vulkan device!\n");
- exit(2);
- }
-
- // Create swapchain
- rd_priv_ctx->swapchain = pl_vulkan_create_swapchain(rd_priv_ctx->vk,
- &(struct pl_vulkan_swapchain_params) {- .surface = rd_priv_ctx->surf,
- .present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR,
- });
-
- if (!rd_priv_ctx->swapchain) {- fprintf(stderr, "Failed creating vulkan swapchain!\n");
- exit(2);
- }
-
- int w = WINDOW_WIDTH, h = WINDOW_HEIGHT;
- if (!pl_swapchain_resize(rd_priv_ctx->swapchain, &w, &h)) {- fprintf(stderr, "Failed resizing vulkan swapchain!\n");
- exit(2);
- }
-
- rd_priv_ctx->gpu = rd_priv_ctx->vk->gpu;
-#elif defined(HAVE_PLACEBO_OPENGL)
- // Init OpenGL
- struct pl_opengl_params params = pl_opengl_default_params;
-# ifndef NDEBUG
- params.debug = true;
-# endif
-
- SDL_Window *sdlwin = data;
- SDL_GLContext glcontext = SDL_GL_CreateContext(sdlwin);
- SDL_GL_MakeCurrent(sdlwin, glcontext);
-
- rd_priv_ctx->gl = pl_opengl_create(rd_priv_ctx->ctx, ¶ms);
- if (!rd_priv_ctx->gl) {- fprintf(stderr, "Failed creating opengl device!\n");
- exit(2);
- }
-
- rd_priv_ctx->swapchain = pl_opengl_create_swapchain(rd_priv_ctx->gl,
- &(struct pl_opengl_swapchain_params) {- .swap_buffers = (void (*)(void *)) SDL_GL_SwapWindow,
- .priv = sdlwin,
- });
-
- if (!rd_priv_ctx->swapchain) {- fprintf(stderr, "Failed creating opengl swapchain!\n");
- exit(2);
- }
-
- int w = WINDOW_WIDTH, h = WINDOW_HEIGHT;
- SDL_GL_GetDrawableSize(sdlwin, &w, &h);
-
- if (!pl_swapchain_resize(rd_priv_ctx->swapchain, &w, &h)) {- fprintf(stderr, "Failed resizing vulkan swapchain!\n");
- exit(2);
- }
-
- rd_priv_ctx->gpu = rd_priv_ctx->gl->gpu;
-#endif
-
- if (w != WINDOW_WIDTH || h != WINDOW_HEIGHT)
- printf("Note: window dimensions differ (got %dx%d)\n", w, h);-
- rd_priv_ctx->y_tex = NULL;
- rd_priv_ctx->u_tex = NULL;
- rd_priv_ctx->v_tex = NULL;
-
- rd_priv_ctx->renderer = NULL;
-
- return rd_priv_ctx;
-}
-
-static void placebo_renderer_destroy(void *cookie)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- pl_renderer_destroy(&(rd_priv_ctx->renderer));
- pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->y_tex));
- pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->u_tex));
- pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->v_tex));
- pl_swapchain_destroy(&(rd_priv_ctx->swapchain));
-
-#if defined(HAVE_PLACEBO_VULKAN)
- pl_vulkan_destroy(&(rd_priv_ctx->vk));
- vkDestroySurfaceKHR(rd_priv_ctx->vk_inst->instance, rd_priv_ctx->surf, NULL);
- pl_vk_inst_destroy(&(rd_priv_ctx->vk_inst));
-#elif defined(HAVE_PLACEBO_OPENGL)
- pl_opengl_destroy(&(rd_priv_ctx->gl));
-#endif
-
- pl_context_destroy(&(rd_priv_ctx->ctx));
-}
-
-static void placebo_render(void *cookie, const Dav1dPlaySettings *settings)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- SDL_LockMutex(rd_priv_ctx->lock);
- if (rd_priv_ctx->y_tex == NULL) {- SDL_UnlockMutex(rd_priv_ctx->lock);
- return;
- }
-
- // Prepare rendering
- if (rd_priv_ctx->renderer == NULL) {- rd_priv_ctx->renderer = pl_renderer_create(rd_priv_ctx->ctx, rd_priv_ctx->gpu);
- }
-
- struct pl_swapchain_frame frame;
- bool ok = pl_swapchain_start_frame(rd_priv_ctx->swapchain, &frame);
- if (!ok) {- SDL_UnlockMutex(rd_priv_ctx->lock);
- return;
- }
-
- const struct pl_tex *img = rd_priv_ctx->y_plane.texture;
- struct pl_image image = {- .num_planes = 3,
- .planes = { rd_priv_ctx->y_plane, rd_priv_ctx->u_plane, rd_priv_ctx->v_plane },- .repr = pl_color_repr_hdtv,
- .color = pl_color_space_unknown,
- .width = img->params.w,
- .height = img->params.h,
- };
-
- struct pl_render_params render_params = {0};- if (settings->highquality)
- render_params = pl_render_default_params;
-
- struct pl_render_target target;
- pl_render_target_from_swapchain(&target, &frame);
- target.profile = (struct pl_icc_profile) {- .data = NULL,
- .len = 0,
- };
-
- if (!pl_render_image(rd_priv_ctx->renderer, &image, &target, &render_params)) {- fprintf(stderr, "Failed rendering frame!\n");
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return;
- }
-
- ok = pl_swapchain_submit_frame(rd_priv_ctx->swapchain);
- if (!ok) {- fprintf(stderr, "Failed submitting frame!\n");
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return;
- }
-
- pl_swapchain_swap_buffers(rd_priv_ctx->swapchain);
- SDL_UnlockMutex(rd_priv_ctx->lock);
-}
-
-static int placebo_upload_planes(void *cookie, Dav1dPicture *dav1d_pic,
- const Dav1dPlaySettings *settings)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- SDL_LockMutex(rd_priv_ctx->lock);
-
- if (dav1d_pic == NULL) {- SDL_UnlockMutex(rd_priv_ctx->lock);
- return 0;
- }
-
- int width = dav1d_pic->p.w;
- int height = dav1d_pic->p.h;
-
- enum Dav1dPixelLayout dav1d_layout = dav1d_pic->p.layout;
-
- if (DAV1D_PIXEL_LAYOUT_I420 != dav1d_layout || dav1d_pic->p.bpc != 8) {- fprintf(stderr, "Unsupported pixel format, only 8bit 420 supported so far.\n");
- exit(50);
- }
-
- struct pl_plane_data data_y = {- .type = PL_FMT_UNORM,
- .width = width,
- .height = height,
- .pixel_stride = 1,
- .row_stride = dav1d_pic->stride[0],
- .component_size = {8},- .component_map = {0},- };
-
- struct pl_plane_data data_u = {- .type = PL_FMT_UNORM,
- .width = width/2,
- .height = height/2,
- .pixel_stride = 1,
- .row_stride = dav1d_pic->stride[1],
- .component_size = {8},- .component_map = {1},- };
-
- struct pl_plane_data data_v = {- .type = PL_FMT_UNORM,
- .width = width/2,
- .height = height/2,
- .pixel_stride = 1,
- .row_stride = dav1d_pic->stride[1],
- .component_size = {8},- .component_map = {2},- };
-
- if (settings->zerocopy) {- const struct pl_buf *buf = dav1d_pic->allocator_data;
- assert(buf);
- data_y.buf = data_u.buf = data_v.buf = buf;
- data_y.buf_offset = (uintptr_t) dav1d_pic->data[0] - (uintptr_t) buf->data;
- data_u.buf_offset = (uintptr_t) dav1d_pic->data[1] - (uintptr_t) buf->data;
- data_v.buf_offset = (uintptr_t) dav1d_pic->data[2] - (uintptr_t) buf->data;
- } else {- data_y.pixels = dav1d_pic->data[0];
- data_u.pixels = dav1d_pic->data[1];
- data_v.pixels = dav1d_pic->data[2];
- }
-
- bool ok = true;
- ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->y_plane), &(rd_priv_ctx->y_tex), &data_y);
- ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->u_plane), &(rd_priv_ctx->u_tex), &data_u);
- ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->v_plane), &(rd_priv_ctx->v_tex), &data_v);
-
- pl_chroma_location_offset(PL_CHROMA_LEFT, &rd_priv_ctx->u_plane.shift_x, &rd_priv_ctx->u_plane.shift_y);
- pl_chroma_location_offset(PL_CHROMA_LEFT, &rd_priv_ctx->v_plane.shift_x, &rd_priv_ctx->v_plane.shift_y);
-
- if (!ok) {- fprintf(stderr, "Failed uploading planes!\n");
- }
-
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return !ok;
-}
-
-// Align to power of 2
-#define ALIGN2(x, align) (((x) + (align) - 1) & ~((align) - 1))
-
-static int placebo_alloc_pic(Dav1dPicture *const p, void *cookie)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
- SDL_LockMutex(rd_priv_ctx->lock);
-
- const struct pl_gpu *gpu = rd_priv_ctx->gpu;
- int ret = DAV1D_ERR(ENOMEM);
-
- // Copied from dav1d_default_picture_alloc
- const int hbd = p->p.bpc > 8;
- const int aligned_w = ALIGN2(p->p.w, 128);
- const int aligned_h = ALIGN2(p->p.h, 128);
- const int has_chroma = p->p.layout != DAV1D_PIXEL_LAYOUT_I400;
- const int ss_ver = p->p.layout == DAV1D_PIXEL_LAYOUT_I420;
- const int ss_hor = p->p.layout != DAV1D_PIXEL_LAYOUT_I444;
- p->stride[0] = aligned_w << hbd;
- p->stride[1] = has_chroma ? (aligned_w >> ss_hor) << hbd : 0;
-
- // Align strides up to multiples of the GPU performance hints
- p->stride[0] = ALIGN2(p->stride[0], gpu->limits.align_tex_xfer_stride);
- p->stride[1] = ALIGN2(p->stride[1], gpu->limits.align_tex_xfer_stride);
-
- // Aligning offsets to 4 also implicity aligns to the texel size (1 or 2)
- size_t off_align = ALIGN2(gpu->limits.align_tex_xfer_offset, 4);
- const size_t y_sz = ALIGN2(p->stride[0] * aligned_h, off_align);
- const size_t uv_sz = ALIGN2(p->stride[1] * (aligned_h >> ss_ver), off_align);
-
- // The extra DAV1D_PICTURE_ALIGNMENTs are to brute force plane alignment,
- // even in the case that the driver gives us insane alignments
- const size_t pic_size = y_sz + 2 * uv_sz;
- const size_t total_size = pic_size + DAV1D_PICTURE_ALIGNMENT * 4;
-
- // Validate size limitations
- if (total_size > gpu->limits.max_xfer_size) {- printf("alloc of %zu bytes exceeds limits\n", total_size);- goto err;
- }
-
- const struct pl_buf *buf = pl_buf_create(gpu, &(struct pl_buf_params) {- .type = PL_BUF_TEX_TRANSFER,
- .host_mapped = true,
- .size = total_size,
- .memory_type = PL_BUF_MEM_HOST,
- .user_data = p,
- });
-
- if (!buf) {- printf("alloc of GPU mapped buffer failed\n");- goto err;
- }
-
- assert(buf->data);
- uintptr_t base = (uintptr_t) buf->data, data[3];
- data[0] = ALIGN2(base, DAV1D_PICTURE_ALIGNMENT);
- data[1] = ALIGN2(data[0] + y_sz, DAV1D_PICTURE_ALIGNMENT);
- data[2] = ALIGN2(data[1] + uv_sz, DAV1D_PICTURE_ALIGNMENT);
-
- // Sanity check offset alignment for the sake of debugging
- if (data[0] - base != ALIGN2(data[0] - base, off_align) ||
- data[1] - base != ALIGN2(data[1] - base, off_align) ||
- data[2] - base != ALIGN2(data[2] - base, off_align))
- {- printf("GPU buffer horribly misaligned, expect slowdown!\n");- }
-
- p->allocator_data = (void *) buf;
- p->data[0] = (void *) data[0];
- p->data[1] = (void *) data[1];
- p->data[2] = (void *) data[2];
- ret = 0;
-
- // fall through
-err:
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return ret;
-}
-
-static void placebo_release_pic(Dav1dPicture *pic, void *cookie)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
- assert(pic->allocator_data);
-
- SDL_LockMutex(rd_priv_ctx->lock);
- const struct pl_gpu *gpu = rd_priv_ctx->gpu;
- pl_buf_destroy(gpu, (const struct pl_buf **) &pic->allocator_data);
- SDL_UnlockMutex(rd_priv_ctx->lock);
-}
-
-static const Dav1dPlayRenderInfo renderer_info = {- .create_renderer = placebo_renderer_create,
- .destroy_renderer = placebo_renderer_destroy,
- .render = placebo_render,
- .update_frame = placebo_upload_planes,
- .alloc_pic = placebo_alloc_pic,
- .release_pic = placebo_release_pic,
-};
-
-#else
-
-/**
- * Renderer context for SDL
- */
-typedef struct renderer_priv_ctx
-{- // SDL renderer
- SDL_Renderer *renderer;
- // Lock protecting access to the texture
- SDL_mutex *lock;
- // Texture to render
- SDL_Texture *tex;
-} Dav1dPlayRendererPrivateContext;
-
-static void *sdl_renderer_create(void *data)
-{- SDL_Window *win = data;
-
- // Alloc
- Dav1dPlayRendererPrivateContext *rd_priv_ctx = malloc(sizeof(Dav1dPlayRendererPrivateContext));
- if (rd_priv_ctx == NULL) {- return NULL;
- }
-
- // Create renderer
- rd_priv_ctx->renderer = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED);
- // Set scale quality
- SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
-
- // Create Mutex
- rd_priv_ctx->lock = SDL_CreateMutex();
- if (rd_priv_ctx->lock == NULL) {- fprintf(stderr, "SDL_CreateMutex failed: %s\n", SDL_GetError());
- free(rd_priv_ctx);
- return NULL;
- }
-
- rd_priv_ctx->tex = NULL;
-
- return rd_priv_ctx;
-}
-
-static void sdl_renderer_destroy(void *cookie)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- SDL_DestroyRenderer(rd_priv_ctx->renderer);
- SDL_DestroyMutex(rd_priv_ctx->lock);
- free(rd_priv_ctx);
-}
-
-static void sdl_render(void *cookie, const Dav1dPlaySettings *settings)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- SDL_LockMutex(rd_priv_ctx->lock);
-
- if (rd_priv_ctx->tex == NULL) {- SDL_UnlockMutex(rd_priv_ctx->lock);
- return;
- }
-
- // Display the frame
- SDL_RenderClear(rd_priv_ctx->renderer);
- SDL_RenderCopy(rd_priv_ctx->renderer, rd_priv_ctx->tex, NULL, NULL);
- SDL_RenderPresent(rd_priv_ctx->renderer);
-
- SDL_UnlockMutex(rd_priv_ctx->lock);
-}
-
-static int sdl_update_texture(void *cookie, Dav1dPicture *dav1d_pic,
- const Dav1dPlaySettings *settings)
-{- Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
- assert(rd_priv_ctx != NULL);
-
- SDL_LockMutex(rd_priv_ctx->lock);
-
- if (dav1d_pic == NULL) {- rd_priv_ctx->tex = NULL;
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return 0;
- }
-
- int width = dav1d_pic->p.w;
- int height = dav1d_pic->p.h;
- int tex_w = width;
- int tex_h = height;
-
- enum Dav1dPixelLayout dav1d_layout = dav1d_pic->p.layout;
-
- if (DAV1D_PIXEL_LAYOUT_I420 != dav1d_layout || dav1d_pic->p.bpc != 8) {- fprintf(stderr, "Unsupported pixel format, only 8bit 420 supported so far.\n");
- exit(50);
- }
-
- SDL_Texture *texture = rd_priv_ctx->tex;
- if (texture != NULL) {- SDL_QueryTexture(texture, NULL, NULL, &tex_w, &tex_h);
- if (tex_w != width || tex_h != height) {- SDL_DestroyTexture(texture);
- texture = NULL;
- }
- }
-
- if (texture == NULL) {- texture = SDL_CreateTexture(rd_priv_ctx->renderer, SDL_PIXELFORMAT_IYUV,
- SDL_TEXTUREACCESS_STREAMING, width, height);
- }
-
- SDL_UpdateYUVTexture(texture, NULL,
- dav1d_pic->data[0], (int)dav1d_pic->stride[0], // Y
- dav1d_pic->data[1], (int)dav1d_pic->stride[1], // U
- dav1d_pic->data[2], (int)dav1d_pic->stride[1] // V
- );
-
- rd_priv_ctx->tex = texture;
- SDL_UnlockMutex(rd_priv_ctx->lock);
- return 0;
-}
-
-static const Dav1dPlayRenderInfo renderer_info = {- .create_renderer = sdl_renderer_create,
- .destroy_renderer = sdl_renderer_destroy,
- .render = sdl_render,
- .update_frame = sdl_update_texture
-};
-
-#endif
+#include "dp_renderer.h"
/**
* Render context structure
--- /dev/null
+++ b/examples/dp_renderer.h
@@ -1,0 +1,52 @@
+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * Renderer info
+ */
+typedef struct rdr_info
+{+ // Cookie passed to the renderer implementation callbacks
+ void *cookie;
+ // Callback to create the renderer
+ void* (*create_renderer)(void *data);
+ // Callback to destroy the renderer
+ void (*destroy_renderer)(void *cookie);
+ // Callback to the render function that renders a prevously sent frame
+ void (*render)(void *cookie, const Dav1dPlaySettings *settings);
+ // Callback to the send frame function
+ int (*update_frame)(void *cookie, Dav1dPicture *dav1d_pic,
+ const Dav1dPlaySettings *settings);
+ // Callback for alloc/release pictures (optional)
+ int (*alloc_pic)(Dav1dPicture *pic, void *cookie);
+ void (*release_pic)(Dav1dPicture *pic, void *cookie);
+} Dav1dPlayRenderInfo;
+
+#if defined(HAVE_PLACEBO_VULKAN) || defined(HAVE_PLACEBO_OPENGL)
+# include "dp_renderer_placebo.h"
+#else
+# include "dp_renderer_sdl.h"
+#endif
--- /dev/null
+++ b/examples/dp_renderer_placebo.h
@@ -1,0 +1,496 @@
+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <libplacebo/renderer.h>
+#include <libplacebo/utils/upload.h>
+
+#if defined(HAVE_PLACEBO_VULKAN)
+# include <libplacebo/vulkan.h>
+# include <SDL_vulkan.h>
+#elif defined(HAVE_PLACEBO_OPENGL)
+# include <libplacebo/opengl.h>
+# include <SDL_opengl.h>
+#else
+# error Placebo rendering only implemented for Vulkan or OpenGL!
+#endif
+
+
+/**
+ * Renderer context for libplacebo
+ */
+typedef struct renderer_priv_ctx
+{+ // Placebo context
+ struct pl_context *ctx;
+ // Placebo renderer
+ struct pl_renderer *renderer;
+#if defined(HAVE_PLACEBO_VULKAN)
+ // Placebo Vulkan handle
+ const struct pl_vulkan *vk;
+ // Placebo Vulkan instance
+ const struct pl_vk_inst *vk_inst;
+ // Vulkan surface
+ VkSurfaceKHR surf;
+#elif defined(HAVE_PLACEBO_OPENGL)
+ // Placebo OpenGL handle
+ const struct pl_opengl *gl;
+#endif
+ // Placebo GPU
+ const struct pl_gpu *gpu;
+ // Placebo swapchain
+ const struct pl_swapchain *swapchain;
+ // Lock protecting access to the texture
+ SDL_mutex *lock;
+ // Planes to render
+ struct pl_plane y_plane;
+ struct pl_plane u_plane;
+ struct pl_plane v_plane;
+ // Textures to render
+ const struct pl_tex *y_tex;
+ const struct pl_tex *u_tex;
+ const struct pl_tex *v_tex;
+} Dav1dPlayRendererPrivateContext;
+
+static void *placebo_renderer_create(void *data)
+{+ fprintf(stderr, "Using placebo renderer\n");
+ // Alloc
+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = malloc(sizeof(Dav1dPlayRendererPrivateContext));
+ if (rd_priv_ctx == NULL) {+ return NULL;
+ }
+
+ // Init libplacebo
+ rd_priv_ctx->ctx = pl_context_create(PL_API_VER, &(struct pl_context_params) {+ .log_cb = pl_log_color,
+#ifndef NDEBUG
+ .log_level = PL_LOG_DEBUG,
+#else
+ .log_level = PL_LOG_WARN,
+#endif
+ });
+ if (rd_priv_ctx->ctx == NULL) {+ free(rd_priv_ctx);
+ return NULL;
+ }
+
+ // Create Mutex
+ rd_priv_ctx->lock = SDL_CreateMutex();
+ if (rd_priv_ctx->lock == NULL) {+ fprintf(stderr, "SDL_CreateMutex failed: %s\n", SDL_GetError());
+ pl_context_destroy(&(rd_priv_ctx->ctx));
+ free(rd_priv_ctx);
+ return NULL;
+ }
+
+
+#if defined(HAVE_PLACEBO_VULKAN)
+ // Init Vulkan
+ struct pl_vk_inst_params iparams = pl_vk_inst_default_params;
+
+ SDL_Window *sdlwin = data;
+
+ unsigned num = 0;
+ if (!SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, NULL)) {+ fprintf(stderr, "Failed enumerating Vulkan extensions: %s\n", SDL_GetError());
+ exit(1);
+ }
+
+ iparams.extensions = malloc(num * sizeof(const char *));
+ iparams.num_extensions = num;
+ assert(iparams.extensions);
+
+ SDL_bool ok = SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, iparams.extensions);
+ if (!ok) {+ fprintf(stderr, "Failed getting Vk instance extensions\n");
+ exit(1);
+ }
+
+ if (num > 0) {+ printf("Requesting %d additional Vulkan extensions:\n", num);+ for (unsigned i = 0; i < num; i++)
+ printf(" %s\n", iparams.extensions[i]);+ }
+
+ rd_priv_ctx->vk_inst = pl_vk_inst_create(rd_priv_ctx->ctx, &iparams);
+ if (!rd_priv_ctx->vk_inst) {+ fprintf(stderr, "Failed creating Vulkan instance!\n");
+ exit(1);
+ }
+ free(iparams.extensions);
+
+ if (!SDL_Vulkan_CreateSurface(sdlwin, rd_priv_ctx->vk_inst->instance, &rd_priv_ctx->surf)) {+ fprintf(stderr, "Failed creating vulkan surface: %s\n", SDL_GetError());
+ exit(1);
+ }
+
+ struct pl_vulkan_params params = pl_vulkan_default_params;
+ params.instance = rd_priv_ctx->vk_inst->instance;
+ params.surface = rd_priv_ctx->surf;
+ params.allow_software = true;
+
+ rd_priv_ctx->vk = pl_vulkan_create(rd_priv_ctx->ctx, ¶ms);
+ if (!rd_priv_ctx->vk) {+ fprintf(stderr, "Failed creating vulkan device!\n");
+ exit(2);
+ }
+
+ // Create swapchain
+ rd_priv_ctx->swapchain = pl_vulkan_create_swapchain(rd_priv_ctx->vk,
+ &(struct pl_vulkan_swapchain_params) {+ .surface = rd_priv_ctx->surf,
+ .present_mode = VK_PRESENT_MODE_IMMEDIATE_KHR,
+ });
+
+ if (!rd_priv_ctx->swapchain) {+ fprintf(stderr, "Failed creating vulkan swapchain!\n");
+ exit(2);
+ }
+
+ int w = WINDOW_WIDTH, h = WINDOW_HEIGHT;
+ if (!pl_swapchain_resize(rd_priv_ctx->swapchain, &w, &h)) {+ fprintf(stderr, "Failed resizing vulkan swapchain!\n");
+ exit(2);
+ }
+
+ rd_priv_ctx->gpu = rd_priv_ctx->vk->gpu;
+#elif defined(HAVE_PLACEBO_OPENGL)
+ // Init OpenGL
+ struct pl_opengl_params params = pl_opengl_default_params;
+# ifndef NDEBUG
+ params.debug = true;
+# endif
+
+ SDL_Window *sdlwin = data;
+ SDL_GLContext glcontext = SDL_GL_CreateContext(sdlwin);
+ SDL_GL_MakeCurrent(sdlwin, glcontext);
+
+ rd_priv_ctx->gl = pl_opengl_create(rd_priv_ctx->ctx, ¶ms);
+ if (!rd_priv_ctx->gl) {+ fprintf(stderr, "Failed creating opengl device!\n");
+ exit(2);
+ }
+
+ rd_priv_ctx->swapchain = pl_opengl_create_swapchain(rd_priv_ctx->gl,
+ &(struct pl_opengl_swapchain_params) {+ .swap_buffers = (void (*)(void *)) SDL_GL_SwapWindow,
+ .priv = sdlwin,
+ });
+
+ if (!rd_priv_ctx->swapchain) {+ fprintf(stderr, "Failed creating opengl swapchain!\n");
+ exit(2);
+ }
+
+ int w = WINDOW_WIDTH, h = WINDOW_HEIGHT;
+ SDL_GL_GetDrawableSize(sdlwin, &w, &h);
+
+ if (!pl_swapchain_resize(rd_priv_ctx->swapchain, &w, &h)) {+ fprintf(stderr, "Failed resizing vulkan swapchain!\n");
+ exit(2);
+ }
+
+ rd_priv_ctx->gpu = rd_priv_ctx->gl->gpu;
+#endif
+
+ if (w != WINDOW_WIDTH || h != WINDOW_HEIGHT)
+ printf("Note: window dimensions differ (got %dx%d)\n", w, h);+
+ rd_priv_ctx->y_tex = NULL;
+ rd_priv_ctx->u_tex = NULL;
+ rd_priv_ctx->v_tex = NULL;
+
+ rd_priv_ctx->renderer = NULL;
+
+ return rd_priv_ctx;
+}
+
+static void placebo_renderer_destroy(void *cookie)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ pl_renderer_destroy(&(rd_priv_ctx->renderer));
+ pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->y_tex));
+ pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->u_tex));
+ pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->v_tex));
+ pl_swapchain_destroy(&(rd_priv_ctx->swapchain));
+
+#if defined(HAVE_PLACEBO_VULKAN)
+ pl_vulkan_destroy(&(rd_priv_ctx->vk));
+ vkDestroySurfaceKHR(rd_priv_ctx->vk_inst->instance, rd_priv_ctx->surf, NULL);
+ pl_vk_inst_destroy(&(rd_priv_ctx->vk_inst));
+#elif defined(HAVE_PLACEBO_OPENGL)
+ pl_opengl_destroy(&(rd_priv_ctx->gl));
+#endif
+
+ pl_context_destroy(&(rd_priv_ctx->ctx));
+}
+
+static void placebo_render(void *cookie, const Dav1dPlaySettings *settings)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ SDL_LockMutex(rd_priv_ctx->lock);
+ if (rd_priv_ctx->y_tex == NULL) {+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return;
+ }
+
+ // Prepare rendering
+ if (rd_priv_ctx->renderer == NULL) {+ rd_priv_ctx->renderer = pl_renderer_create(rd_priv_ctx->ctx, rd_priv_ctx->gpu);
+ }
+
+ struct pl_swapchain_frame frame;
+ bool ok = pl_swapchain_start_frame(rd_priv_ctx->swapchain, &frame);
+ if (!ok) {+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return;
+ }
+
+ const struct pl_tex *img = rd_priv_ctx->y_plane.texture;
+ struct pl_image image = {+ .num_planes = 3,
+ .planes = { rd_priv_ctx->y_plane, rd_priv_ctx->u_plane, rd_priv_ctx->v_plane },+ .repr = pl_color_repr_hdtv,
+ .color = pl_color_space_unknown,
+ .width = img->params.w,
+ .height = img->params.h,
+ };
+
+ struct pl_render_params render_params = {0};+ if (settings->highquality)
+ render_params = pl_render_default_params;
+
+ struct pl_render_target target;
+ pl_render_target_from_swapchain(&target, &frame);
+ target.profile = (struct pl_icc_profile) {+ .data = NULL,
+ .len = 0,
+ };
+
+ if (!pl_render_image(rd_priv_ctx->renderer, &image, &target, &render_params)) {+ fprintf(stderr, "Failed rendering frame!\n");
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return;
+ }
+
+ ok = pl_swapchain_submit_frame(rd_priv_ctx->swapchain);
+ if (!ok) {+ fprintf(stderr, "Failed submitting frame!\n");
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return;
+ }
+
+ pl_swapchain_swap_buffers(rd_priv_ctx->swapchain);
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+}
+
+static int placebo_upload_planes(void *cookie, Dav1dPicture *dav1d_pic,
+ const Dav1dPlaySettings *settings)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ SDL_LockMutex(rd_priv_ctx->lock);
+
+ if (dav1d_pic == NULL) {+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return 0;
+ }
+
+ int width = dav1d_pic->p.w;
+ int height = dav1d_pic->p.h;
+
+ enum Dav1dPixelLayout dav1d_layout = dav1d_pic->p.layout;
+
+ if (DAV1D_PIXEL_LAYOUT_I420 != dav1d_layout || dav1d_pic->p.bpc != 8) {+ fprintf(stderr, "Unsupported pixel format, only 8bit 420 supported so far.\n");
+ exit(50);
+ }
+
+ struct pl_plane_data data_y = {+ .type = PL_FMT_UNORM,
+ .width = width,
+ .height = height,
+ .pixel_stride = 1,
+ .row_stride = dav1d_pic->stride[0],
+ .component_size = {8},+ .component_map = {0},+ };
+
+ struct pl_plane_data data_u = {+ .type = PL_FMT_UNORM,
+ .width = width/2,
+ .height = height/2,
+ .pixel_stride = 1,
+ .row_stride = dav1d_pic->stride[1],
+ .component_size = {8},+ .component_map = {1},+ };
+
+ struct pl_plane_data data_v = {+ .type = PL_FMT_UNORM,
+ .width = width/2,
+ .height = height/2,
+ .pixel_stride = 1,
+ .row_stride = dav1d_pic->stride[1],
+ .component_size = {8},+ .component_map = {2},+ };
+
+ if (settings->zerocopy) {+ const struct pl_buf *buf = dav1d_pic->allocator_data;
+ assert(buf);
+ data_y.buf = data_u.buf = data_v.buf = buf;
+ data_y.buf_offset = (uintptr_t) dav1d_pic->data[0] - (uintptr_t) buf->data;
+ data_u.buf_offset = (uintptr_t) dav1d_pic->data[1] - (uintptr_t) buf->data;
+ data_v.buf_offset = (uintptr_t) dav1d_pic->data[2] - (uintptr_t) buf->data;
+ } else {+ data_y.pixels = dav1d_pic->data[0];
+ data_u.pixels = dav1d_pic->data[1];
+ data_v.pixels = dav1d_pic->data[2];
+ }
+
+ bool ok = true;
+ ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->y_plane), &(rd_priv_ctx->y_tex), &data_y);
+ ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->u_plane), &(rd_priv_ctx->u_tex), &data_u);
+ ok &= pl_upload_plane(rd_priv_ctx->gpu, &(rd_priv_ctx->v_plane), &(rd_priv_ctx->v_tex), &data_v);
+
+ pl_chroma_location_offset(PL_CHROMA_LEFT, &rd_priv_ctx->u_plane.shift_x, &rd_priv_ctx->u_plane.shift_y);
+ pl_chroma_location_offset(PL_CHROMA_LEFT, &rd_priv_ctx->v_plane.shift_x, &rd_priv_ctx->v_plane.shift_y);
+
+ if (!ok) {+ fprintf(stderr, "Failed uploading planes!\n");
+ }
+
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return !ok;
+}
+
+// Align to power of 2
+#define ALIGN2(x, align) (((x) + (align) - 1) & ~((align) - 1))
+
+static int placebo_alloc_pic(Dav1dPicture *const p, void *cookie)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+ SDL_LockMutex(rd_priv_ctx->lock);
+
+ const struct pl_gpu *gpu = rd_priv_ctx->gpu;
+ int ret = DAV1D_ERR(ENOMEM);
+
+ // Copied from dav1d_default_picture_alloc
+ const int hbd = p->p.bpc > 8;
+ const int aligned_w = ALIGN2(p->p.w, 128);
+ const int aligned_h = ALIGN2(p->p.h, 128);
+ const int has_chroma = p->p.layout != DAV1D_PIXEL_LAYOUT_I400;
+ const int ss_ver = p->p.layout == DAV1D_PIXEL_LAYOUT_I420;
+ const int ss_hor = p->p.layout != DAV1D_PIXEL_LAYOUT_I444;
+ p->stride[0] = aligned_w << hbd;
+ p->stride[1] = has_chroma ? (aligned_w >> ss_hor) << hbd : 0;
+
+ // Align strides up to multiples of the GPU performance hints
+ p->stride[0] = ALIGN2(p->stride[0], gpu->limits.align_tex_xfer_stride);
+ p->stride[1] = ALIGN2(p->stride[1], gpu->limits.align_tex_xfer_stride);
+
+ // Aligning offsets to 4 also implicity aligns to the texel size (1 or 2)
+ size_t off_align = ALIGN2(gpu->limits.align_tex_xfer_offset, 4);
+ const size_t y_sz = ALIGN2(p->stride[0] * aligned_h, off_align);
+ const size_t uv_sz = ALIGN2(p->stride[1] * (aligned_h >> ss_ver), off_align);
+
+ // The extra DAV1D_PICTURE_ALIGNMENTs are to brute force plane alignment,
+ // even in the case that the driver gives us insane alignments
+ const size_t pic_size = y_sz + 2 * uv_sz;
+ const size_t total_size = pic_size + DAV1D_PICTURE_ALIGNMENT * 4;
+
+ // Validate size limitations
+ if (total_size > gpu->limits.max_xfer_size) {+ printf("alloc of %zu bytes exceeds limits\n", total_size);+ goto err;
+ }
+
+ const struct pl_buf *buf = pl_buf_create(gpu, &(struct pl_buf_params) {+ .type = PL_BUF_TEX_TRANSFER,
+ .host_mapped = true,
+ .size = total_size,
+ .memory_type = PL_BUF_MEM_HOST,
+ .user_data = p,
+ });
+
+ if (!buf) {+ printf("alloc of GPU mapped buffer failed\n");+ goto err;
+ }
+
+ assert(buf->data);
+ uintptr_t base = (uintptr_t) buf->data, data[3];
+ data[0] = ALIGN2(base, DAV1D_PICTURE_ALIGNMENT);
+ data[1] = ALIGN2(data[0] + y_sz, DAV1D_PICTURE_ALIGNMENT);
+ data[2] = ALIGN2(data[1] + uv_sz, DAV1D_PICTURE_ALIGNMENT);
+
+ // Sanity check offset alignment for the sake of debugging
+ if (data[0] - base != ALIGN2(data[0] - base, off_align) ||
+ data[1] - base != ALIGN2(data[1] - base, off_align) ||
+ data[2] - base != ALIGN2(data[2] - base, off_align))
+ {+ printf("GPU buffer horribly misaligned, expect slowdown!\n");+ }
+
+ p->allocator_data = (void *) buf;
+ p->data[0] = (void *) data[0];
+ p->data[1] = (void *) data[1];
+ p->data[2] = (void *) data[2];
+ ret = 0;
+
+ // fall through
+err:
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return ret;
+}
+
+static void placebo_release_pic(Dav1dPicture *pic, void *cookie)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+ assert(pic->allocator_data);
+
+ SDL_LockMutex(rd_priv_ctx->lock);
+ const struct pl_gpu *gpu = rd_priv_ctx->gpu;
+ pl_buf_destroy(gpu, (const struct pl_buf **) &pic->allocator_data);
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+}
+
+static const Dav1dPlayRenderInfo renderer_info = {+ .create_renderer = placebo_renderer_create,
+ .destroy_renderer = placebo_renderer_destroy,
+ .render = placebo_render,
+ .update_frame = placebo_upload_planes,
+ .alloc_pic = placebo_alloc_pic,
+ .release_pic = placebo_release_pic,
+};
--- /dev/null
+++ b/examples/dp_renderer_sdl.h
@@ -1,0 +1,154 @@
+/*
+ * Copyright © 2020, VideoLAN and dav1d authors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * Renderer context for SDL
+ */
+typedef struct renderer_priv_ctx
+{+ // SDL renderer
+ SDL_Renderer *renderer;
+ // Lock protecting access to the texture
+ SDL_mutex *lock;
+ // Texture to render
+ SDL_Texture *tex;
+} Dav1dPlayRendererPrivateContext;
+
+static void *sdl_renderer_create(void *data)
+{+ SDL_Window *win = data;
+
+ // Alloc
+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = malloc(sizeof(Dav1dPlayRendererPrivateContext));
+ if (rd_priv_ctx == NULL) {+ return NULL;
+ }
+
+ // Create renderer
+ rd_priv_ctx->renderer = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED);
+ // Set scale quality
+ SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
+
+ // Create Mutex
+ rd_priv_ctx->lock = SDL_CreateMutex();
+ if (rd_priv_ctx->lock == NULL) {+ fprintf(stderr, "SDL_CreateMutex failed: %s\n", SDL_GetError());
+ free(rd_priv_ctx);
+ return NULL;
+ }
+
+ rd_priv_ctx->tex = NULL;
+
+ return rd_priv_ctx;
+}
+
+static void sdl_renderer_destroy(void *cookie)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ SDL_DestroyRenderer(rd_priv_ctx->renderer);
+ SDL_DestroyMutex(rd_priv_ctx->lock);
+ free(rd_priv_ctx);
+}
+
+static void sdl_render(void *cookie, const Dav1dPlaySettings *settings)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ SDL_LockMutex(rd_priv_ctx->lock);
+
+ if (rd_priv_ctx->tex == NULL) {+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return;
+ }
+
+ // Display the frame
+ SDL_RenderClear(rd_priv_ctx->renderer);
+ SDL_RenderCopy(rd_priv_ctx->renderer, rd_priv_ctx->tex, NULL, NULL);
+ SDL_RenderPresent(rd_priv_ctx->renderer);
+
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+}
+
+static int sdl_update_texture(void *cookie, Dav1dPicture *dav1d_pic,
+ const Dav1dPlaySettings *settings)
+{+ Dav1dPlayRendererPrivateContext *rd_priv_ctx = cookie;
+ assert(rd_priv_ctx != NULL);
+
+ SDL_LockMutex(rd_priv_ctx->lock);
+
+ if (dav1d_pic == NULL) {+ rd_priv_ctx->tex = NULL;
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return 0;
+ }
+
+ int width = dav1d_pic->p.w;
+ int height = dav1d_pic->p.h;
+ int tex_w = width;
+ int tex_h = height;
+
+ enum Dav1dPixelLayout dav1d_layout = dav1d_pic->p.layout;
+
+ if (DAV1D_PIXEL_LAYOUT_I420 != dav1d_layout || dav1d_pic->p.bpc != 8) {+ fprintf(stderr, "Unsupported pixel format, only 8bit 420 supported so far.\n");
+ exit(50);
+ }
+
+ SDL_Texture *texture = rd_priv_ctx->tex;
+ if (texture != NULL) {+ SDL_QueryTexture(texture, NULL, NULL, &tex_w, &tex_h);
+ if (tex_w != width || tex_h != height) {+ SDL_DestroyTexture(texture);
+ texture = NULL;
+ }
+ }
+
+ if (texture == NULL) {+ texture = SDL_CreateTexture(rd_priv_ctx->renderer, SDL_PIXELFORMAT_IYUV,
+ SDL_TEXTUREACCESS_STREAMING, width, height);
+ }
+
+ SDL_UpdateYUVTexture(texture, NULL,
+ dav1d_pic->data[0], (int)dav1d_pic->stride[0], // Y
+ dav1d_pic->data[1], (int)dav1d_pic->stride[1], // U
+ dav1d_pic->data[2], (int)dav1d_pic->stride[1] // V
+ );
+
+ rd_priv_ctx->tex = texture;
+ SDL_UnlockMutex(rd_priv_ctx->lock);
+ return 0;
+}
+
+static const Dav1dPlayRenderInfo renderer_info = {+ .create_renderer = sdl_renderer_create,
+ .destroy_renderer = sdl_renderer_destroy,
+ .render = sdl_render,
+ .update_frame = sdl_update_texture
+};