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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /third_party/dav1d/examples/dp_renderer_placebo.c | |
parent | Initial commit. (diff) | |
download | firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz firefox-2aa4a82499d4becd2284cdb482213d541b8804dd.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/dav1d/examples/dp_renderer_placebo.c')
-rw-r--r-- | third_party/dav1d/examples/dp_renderer_placebo.c | 723 |
1 files changed, 723 insertions, 0 deletions
diff --git a/third_party/dav1d/examples/dp_renderer_placebo.c b/third_party/dav1d/examples/dp_renderer_placebo.c new file mode 100644 index 0000000000..2dd7bea12d --- /dev/null +++ b/third_party/dav1d/examples/dp_renderer_placebo.c @@ -0,0 +1,723 @@ +/* + * 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 "dp_renderer.h" + +#ifdef HAVE_RENDERER_PLACEBO +#include <assert.h> + +#include <libplacebo/renderer.h> +#include <libplacebo/utils/upload.h> + +#ifdef HAVE_PLACEBO_VULKAN +# include <libplacebo/vulkan.h> +# include <SDL_vulkan.h> +#endif +#ifdef HAVE_PLACEBO_OPENGL +# include <libplacebo/opengl.h> +# include <SDL_opengl.h> +#endif + + +/** + * Renderer context for libplacebo + */ +typedef struct renderer_priv_ctx +{ + // SDL window + SDL_Window *win; + // Placebo context + struct pl_context *ctx; + // Placebo renderer + struct pl_renderer *renderer; +#ifdef 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; +#endif +#ifdef 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; + // Image to render, and planes backing them + struct pl_image image; + const struct pl_tex *plane_tex[3]; +} Dav1dPlayRendererPrivateContext; + +static Dav1dPlayRendererPrivateContext* + placebo_renderer_create_common(int window_flags) +{ + // Create Window + SDL_Window *sdlwin = dp_create_sdl_window(window_flags | SDL_WINDOW_RESIZABLE); + if (sdlwin == NULL) + return NULL; + + // Alloc + Dav1dPlayRendererPrivateContext *rd_priv_ctx = malloc(sizeof(Dav1dPlayRendererPrivateContext)); + if (rd_priv_ctx == NULL) { + return NULL; + } + + *rd_priv_ctx = (Dav1dPlayRendererPrivateContext) {0}; + rd_priv_ctx->win = sdlwin; + + // 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; + } + + return rd_priv_ctx; +} + +#ifdef HAVE_PLACEBO_OPENGL +static void *placebo_renderer_create_gl() +{ + SDL_Window *sdlwin = NULL; + SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG); + + // Common init + Dav1dPlayRendererPrivateContext *rd_priv_ctx = + placebo_renderer_create_common(SDL_WINDOW_OPENGL); + + if (rd_priv_ctx == NULL) + return NULL; + sdlwin = rd_priv_ctx->win; + + // Init OpenGL + struct pl_opengl_params params = pl_opengl_default_params; +# ifndef NDEBUG + params.debug = true; +# endif + + 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; + + if (w != WINDOW_WIDTH || h != WINDOW_HEIGHT) + printf("Note: window dimensions differ (got %dx%d)\n", w, h); + + return rd_priv_ctx; +} +#endif + +#ifdef HAVE_PLACEBO_VULKAN +static void *placebo_renderer_create_vk() +{ + SDL_Window *sdlwin = NULL; + + // Common init + Dav1dPlayRendererPrivateContext *rd_priv_ctx = + placebo_renderer_create_common(SDL_WINDOW_VULKAN); + + if (rd_priv_ctx == NULL) + return NULL; + sdlwin = rd_priv_ctx->win; + + // Init Vulkan + unsigned num = 0; + if (!SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, NULL)) { + fprintf(stderr, "Failed enumerating Vulkan extensions: %s\n", SDL_GetError()); + exit(1); + } + + const char **extensions = malloc(num * sizeof(const char *)); + assert(extensions); + + SDL_bool ok = SDL_Vulkan_GetInstanceExtensions(sdlwin, &num, 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", extensions[i]); + } + + struct pl_vk_inst_params iparams = pl_vk_inst_default_params; + iparams.extensions = extensions; + iparams.num_extensions = num; + + 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(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; + + if (w != WINDOW_WIDTH || h != WINDOW_HEIGHT) + printf("Note: window dimensions differ (got %dx%d)\n", w, h); + + return rd_priv_ctx; +} +#endif + +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_swapchain_destroy(&(rd_priv_ctx->swapchain)); + for (int i = 0; i < 3; i++) + pl_tex_destroy(rd_priv_ctx->gpu, &(rd_priv_ctx->plane_tex[i])); + +#ifdef HAVE_PLACEBO_VULKAN + if (rd_priv_ctx->vk) { + 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)); + } +#endif +#ifdef HAVE_PLACEBO_OPENGL + if (rd_priv_ctx->gl) + pl_opengl_destroy(&(rd_priv_ctx->gl)); +#endif + + SDL_DestroyWindow(rd_priv_ctx->win); + + 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->image.num_planes) { + 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; + } + + 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_API_VER >= 66 + pl_rect2df_aspect_copy(&target.dst_rect, &rd_priv_ctx->image.src_rect, 0.0); + if (pl_render_target_partial(&target)) + pl_tex_clear(rd_priv_ctx->gpu, target.fbo, (float[4]){ 0.0 }); +#endif + + if (!pl_render_image(rd_priv_ctx->renderer, &rd_priv_ctx->image, &target, &render_params)) { + fprintf(stderr, "Failed rendering frame!\n"); + pl_tex_clear(rd_priv_ctx->gpu, target.fbo, (float[4]){ 1.0 }); + } + + 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_image(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; + int sub_x = 0, sub_y = 0; + int bytes = (dav1d_pic->p.bpc + 7) / 8; // rounded up + enum pl_chroma_location chroma_loc = PL_CHROMA_UNKNOWN; + + struct pl_image *image = &rd_priv_ctx->image; + *image = (struct pl_image) { + .num_planes = 3, + .width = width, + .height = height, + .src_rect = {0, 0, width, height}, + + .repr = { + .bits = { + .sample_depth = bytes * 8, + .color_depth = dav1d_pic->p.bpc, + }, + }, + }; + + // Figure out the correct plane dimensions/count + switch (dav1d_pic->p.layout) { + case DAV1D_PIXEL_LAYOUT_I400: + image->num_planes = 1; + break; + case DAV1D_PIXEL_LAYOUT_I420: + sub_x = sub_y = 1; + break; + case DAV1D_PIXEL_LAYOUT_I422: + sub_x = 1; + break; + case DAV1D_PIXEL_LAYOUT_I444: + break; + } + + // Set the right colorspace metadata etc. + switch (dav1d_pic->seq_hdr->pri) { + case DAV1D_COLOR_PRI_UNKNOWN: image->color.primaries = PL_COLOR_PRIM_UNKNOWN; break; + case DAV1D_COLOR_PRI_BT709: image->color.primaries = PL_COLOR_PRIM_BT_709; break; + case DAV1D_COLOR_PRI_BT470M: image->color.primaries = PL_COLOR_PRIM_BT_470M; break; + case DAV1D_COLOR_PRI_BT470BG: image->color.primaries = PL_COLOR_PRIM_BT_601_625; break; + case DAV1D_COLOR_PRI_BT601: image->color.primaries = PL_COLOR_PRIM_BT_601_625; break; + case DAV1D_COLOR_PRI_BT2020: image->color.primaries = PL_COLOR_PRIM_BT_2020; break; + + case DAV1D_COLOR_PRI_XYZ: + // Handled below + assert(dav1d_pic->seq_hdr->mtrx == DAV1D_MC_IDENTITY); + break; + + default: + printf("warning: unknown dav1d color primaries %d.. ignoring, picture " + "may be very incorrect\n", dav1d_pic->seq_hdr->pri); + break; + } + + switch (dav1d_pic->seq_hdr->trc) { + case DAV1D_TRC_BT709: + case DAV1D_TRC_BT470M: + case DAV1D_TRC_BT470BG: + case DAV1D_TRC_BT601: + case DAV1D_TRC_SMPTE240: + case DAV1D_TRC_BT2020_10BIT: + case DAV1D_TRC_BT2020_12BIT: + // These all map to the effective "SDR" CRT-based EOTF, BT.1886 + image->color.transfer = PL_COLOR_TRC_BT_1886; + break; + + case DAV1D_TRC_UNKNOWN: image->color.transfer = PL_COLOR_TRC_UNKNOWN; break; + case DAV1D_TRC_LINEAR: image->color.transfer = PL_COLOR_TRC_LINEAR; break; + case DAV1D_TRC_SRGB: image->color.transfer = PL_COLOR_TRC_SRGB; break; + case DAV1D_TRC_SMPTE2084: image->color.transfer = PL_COLOR_TRC_PQ; break; + case DAV1D_TRC_HLG: image->color.transfer = PL_COLOR_TRC_HLG; break; + + default: + printf("warning: unknown dav1d color transfer %d.. ignoring, picture " + "may be very incorrect\n", dav1d_pic->seq_hdr->trc); + break; + } + + switch (dav1d_pic->seq_hdr->mtrx) { + case DAV1D_MC_IDENTITY: + // This is going to be either RGB or XYZ + if (dav1d_pic->seq_hdr->pri == DAV1D_COLOR_PRI_XYZ) { + image->repr.sys = PL_COLOR_SYSTEM_XYZ; + } else { + image->repr.sys = PL_COLOR_SYSTEM_RGB; + } + break; + + case DAV1D_MC_UNKNOWN: + // PL_COLOR_SYSTEM_UNKNOWN maps to RGB, so hard-code this one + image->repr.sys = pl_color_system_guess_ycbcr(width, height); + break; + + case DAV1D_MC_BT709: image->repr.sys = PL_COLOR_SYSTEM_BT_709; break; + case DAV1D_MC_BT601: image->repr.sys = PL_COLOR_SYSTEM_BT_601; break; + case DAV1D_MC_SMPTE240: image->repr.sys = PL_COLOR_SYSTEM_SMPTE_240M; break; + case DAV1D_MC_SMPTE_YCGCO: image->repr.sys = PL_COLOR_SYSTEM_YCGCO; break; + case DAV1D_MC_BT2020_NCL: image->repr.sys = PL_COLOR_SYSTEM_BT_2020_NC; break; + case DAV1D_MC_BT2020_CL: image->repr.sys = PL_COLOR_SYSTEM_BT_2020_C; break; + + case DAV1D_MC_ICTCP: + // This one is split up based on the actual HDR curve in use + if (dav1d_pic->seq_hdr->trc == DAV1D_TRC_HLG) { + image->repr.sys = PL_COLOR_SYSTEM_BT_2100_HLG; + } else { + image->repr.sys = PL_COLOR_SYSTEM_BT_2100_PQ; + } + break; + + default: + printf("warning: unknown dav1d color matrix %d.. ignoring, picture " + "may be very incorrect\n", dav1d_pic->seq_hdr->mtrx); + break; + } + + if (dav1d_pic->seq_hdr->color_range) { + image->repr.levels = PL_COLOR_LEVELS_PC; + } else { + image->repr.levels = PL_COLOR_LEVELS_TV; + } + + switch (dav1d_pic->seq_hdr->chr) { + case DAV1D_CHR_UNKNOWN: chroma_loc = PL_CHROMA_UNKNOWN; break; + case DAV1D_CHR_VERTICAL: chroma_loc = PL_CHROMA_LEFT; break; + case DAV1D_CHR_COLOCATED: chroma_loc = PL_CHROMA_TOP_LEFT; break; + } + +#if PL_API_VER >= 63 + if (settings->gpugrain && dav1d_pic->frame_hdr->film_grain.present) { + Dav1dFilmGrainData *src = &dav1d_pic->frame_hdr->film_grain.data; + struct pl_av1_grain_data *dst = &image->av1_grain; + *dst = (struct pl_av1_grain_data) { + .grain_seed = src->seed, + .num_points_y = src->num_y_points, + .chroma_scaling_from_luma = src->chroma_scaling_from_luma, + .num_points_uv = { src->num_uv_points[0], src->num_uv_points[1] }, + .scaling_shift = src->scaling_shift, + .ar_coeff_lag = src->ar_coeff_lag, + .ar_coeff_shift = (int)src->ar_coeff_shift, + .grain_scale_shift = src->grain_scale_shift, + .uv_mult = { src->uv_mult[0], src->uv_mult[1] }, + .uv_mult_luma = { src->uv_luma_mult[0], src->uv_luma_mult[1] }, + .uv_offset = { src->uv_offset[0], src->uv_offset[1] }, + .overlap = src->overlap_flag, + }; + + assert(sizeof(dst->points_y) == sizeof(src->y_points)); + assert(sizeof(dst->points_uv) == sizeof(src->uv_points)); + assert(sizeof(dst->ar_coeffs_y) == sizeof(src->ar_coeffs_y)); + memcpy(dst->points_y, src->y_points, sizeof(src->y_points)); + memcpy(dst->points_uv, src->uv_points, sizeof(src->uv_points)); + memcpy(dst->ar_coeffs_y, src->ar_coeffs_y, sizeof(src->ar_coeffs_y)); + + // this one has different row sizes for alignment + for (int c = 0; c < 2; c++) { + for (int i = 0; i < 25; i++) + dst->ar_coeffs_uv[c][i] = src->ar_coeffs_uv[c][i]; + } + } +#endif + + // Upload the actual planes + struct pl_plane_data data[3] = { + { + // Y plane + .type = PL_FMT_UNORM, + .width = width, + .height = height, + .pixel_stride = bytes, + .row_stride = dav1d_pic->stride[0], + .component_size = {bytes * 8}, + .component_map = {0}, + }, { + // U plane + .type = PL_FMT_UNORM, + .width = width >> sub_x, + .height = height >> sub_y, + .pixel_stride = bytes, + .row_stride = dav1d_pic->stride[1], + .component_size = {bytes * 8}, + .component_map = {1}, + }, { + // V plane + .type = PL_FMT_UNORM, + .width = width >> sub_x, + .height = height >> sub_y, + .pixel_stride = bytes, + .row_stride = dav1d_pic->stride[1], + .component_size = {bytes * 8}, + .component_map = {2}, + }, + }; + + bool ok = true; + + for (int i = 0; i < image->num_planes; i++) { + if (settings->zerocopy) { + const struct pl_buf *buf = dav1d_pic->allocator_data; + assert(buf); + data[i].buf = buf; + data[i].buf_offset = (uintptr_t) dav1d_pic->data[i] - (uintptr_t) buf->data; + } else { + data[i].pixels = dav1d_pic->data[i]; + } + + ok &= pl_upload_plane(rd_priv_ctx->gpu, &image->planes[i], &rd_priv_ctx->plane_tex[i], &data[i]); + } + + // Apply the correct chroma plane shift. This has to be done after pl_upload_plane +#if PL_API_VER >= 67 + pl_image_set_chroma_location(image, chroma_loc); +#else + pl_chroma_location_offset(chroma_loc, &image->planes[1].shift_x, &image->planes[1].shift_y); + pl_chroma_location_offset(chroma_loc, &image->planes[2].shift_x, &image->planes[2].shift_y); +#endif + + if (!ok) { + fprintf(stderr, "Failed uploading planes!\n"); + *image = (struct pl_image) {0}; + } + + 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); +} + +#ifdef HAVE_PLACEBO_VULKAN +const Dav1dPlayRenderInfo rdr_placebo_vk = { + .name = "placebo-vk", + .create_renderer = placebo_renderer_create_vk, + .destroy_renderer = placebo_renderer_destroy, + .render = placebo_render, + .update_frame = placebo_upload_image, + .alloc_pic = placebo_alloc_pic, + .release_pic = placebo_release_pic, + +# if PL_API_VER >= 63 + .supports_gpu_grain = 1, +# endif +}; +#else +const Dav1dPlayRenderInfo rdr_placebo_vk = { NULL }; +#endif + +#ifdef HAVE_PLACEBO_OPENGL +const Dav1dPlayRenderInfo rdr_placebo_gl = { + .name = "placebo-gl", + .create_renderer = placebo_renderer_create_gl, + .destroy_renderer = placebo_renderer_destroy, + .render = placebo_render, + .update_frame = placebo_upload_image, + .alloc_pic = placebo_alloc_pic, + .release_pic = placebo_release_pic, + +# if PL_API_VER >= 63 + .supports_gpu_grain = 1, +# endif +}; +#else +const Dav1dPlayRenderInfo rdr_placebo_gl = { NULL }; +#endif + +#else +const Dav1dPlayRenderInfo rdr_placebo_vk = { NULL }; +const Dav1dPlayRenderInfo rdr_placebo_gl = { NULL }; +#endif |