mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-05 20:41:06 +00:00
474 lines
12 KiB
C
474 lines
12 KiB
C
/* ANM file replacement with VP8 video */
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#include <stdint.h>
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#include "compat.h"
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#include "baselayer.h"
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#include "build.h"
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#include "glbuild.h"
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#define VPX_CODEC_DISABLE_COMPAT 1
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#include <vpx/vpx_decoder.h>
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#include <vpx/vp8dx.h>
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#include "duke3d.h"
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#include "game.h" // kopen4loadfrommod
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#include "animvpx.h"
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const char *animvpx_read_ivf_header_errmsg[] = {
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"All OK",
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"couldn't read 32-byte IVF header",
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"magic mismatch, not an IVF file",
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"unrecognized IVF version, expected 0",
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"only VP8 video stream supported",
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"invalid framerate numerator or denominator after correction, must not be 0",
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"INTERNAL ERROR, IVF header size wrong"
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};
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int32_t animvpx_read_ivf_header(int32_t inhandle, animvpx_ivf_header_t *hdr)
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{
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if (sizeof(animvpx_ivf_header_t) != 32)
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return 6;
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if (kread(inhandle, hdr, sizeof(animvpx_ivf_header_t)) != sizeof(animvpx_ivf_header_t))
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return 1; // "couldn't read header"
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if (Bmemcmp(hdr,"DKIF",4))
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return 2; // "not an IVF file"
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hdr->version = B_LITTLE16(hdr->version);
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if (hdr->version != 0)
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return 3; // "unrecognized IVF version"
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hdr->hdrlen = B_LITTLE16(hdr->hdrlen);
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// fourcc is left as-is
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if (Bmemcmp(hdr->fourcc, "VP80", 4))
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return 4; // "only VP8 supported"
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hdr->width = B_LITTLE16(hdr->width);
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hdr->height = B_LITTLE16(hdr->height);
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hdr->fpsnumer = B_LITTLE16(hdr->fpsnumer);
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hdr->fpsdenom = B_LITTLE16(hdr->fpsdenom);
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hdr->numframes = B_LITTLE32(hdr->numframes);
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// the rest is snatched from vpxdec.c (except 0 check for fps)
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/* Some versions of vpxenc used 1/(2*fps) for the timebase, so
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* we can guess the framerate using only the timebase in this
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* case. Other files would require reading ahead to guess the
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* timebase, like we do for webm.
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*/
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if (hdr->fpsnumer < 1000)
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{
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/* Correct for the factor of 2 applied to the timebase in the
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* encoder.
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*/
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if (hdr->fpsnumer&1)
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hdr->fpsdenom <<= 1;
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else
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hdr->fpsnumer >>= 1;
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if (hdr->fpsdenom==0 || hdr->fpsnumer==0)
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return 5; // "invalid framerate numerator or denominator"
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}
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else
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{
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/* Don't know FPS for sure, and don't have readahead code
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* (yet?), so just default to 30fps.
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*/
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hdr->fpsnumer = 30;
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hdr->fpsdenom = 1;
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}
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return 0;
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}
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////////// CODEC STUFF //////////
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static void get_codec_error(animvpx_codec_ctx *codec)
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{
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codec->errmsg_detail = vpx_codec_error_detail(&codec->codec);
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codec->errmsg = vpx_codec_error(&codec->codec);
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}
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// no checks for double-init!
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int32_t animvpx_init_codec(const animvpx_ivf_header_t *info, int32_t inhandle, animvpx_codec_ctx *codec)
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{
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vpx_codec_dec_cfg_t cfg;
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cfg.threads = 1;
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cfg.w = info->width;
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cfg.h = info->height;
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codec->width = info->width;
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codec->height = info->height;
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//
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codec->inhandle = inhandle;
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codec->pic = Bcalloc(info->width*info->height,4);
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codec->compbuflen = codec->compbufallocsiz = 0;
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codec->compbuf = NULL;
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codec->iter = NULL;
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if (codec->pic == NULL)
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{
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codec->initstate = -1;
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return 1;
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}
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if (vpx_codec_dec_init(&codec->codec, &vpx_codec_vp8_dx_algo, &cfg, 0))
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{
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get_codec_error(codec);
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codec->initstate = -1;
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return 1;
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}
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codec->initstate = 1;
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codec->decstate = 0;
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codec->errmsg_detail = codec->errmsg = NULL;
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return 0;
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}
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int32_t animvpx_uninit_codec(animvpx_codec_ctx *codec)
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{
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if (codec->initstate <= 0)
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return 2;
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Bfree(codec->pic);
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codec->pic = NULL;
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if (vpx_codec_destroy(&codec->codec))
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{
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get_codec_error(codec);
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codec->initstate = -2;
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return 1;
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}
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codec->initstate = 0;
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return 0;
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}
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////////// FRAME RETRIEVAL //////////
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// read one IVF/VP8 frame, which may code multiple "picture-frames"
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static int32_t animvpx_read_frame(int32_t inhandle, uint8_t **bufptr, uint32_t *bufsizptr, uint32_t *bufallocsizptr)
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{
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#pragma pack(push,1)
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struct { uint32_t framesiz; uint64_t timestamp; } hdr;
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#pragma pack(pop)
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if (kread(inhandle, &hdr, sizeof(hdr)) != sizeof(hdr))
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return 1;
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if (hdr.framesiz == 0)
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return 6; // must be 6, see animvpx_nextpic_errmsg[]
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// OSD_Printf("frame size: %u\n", hdr.framesiz);
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if (!*bufptr)
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{
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*bufptr = Bmalloc(hdr.framesiz);
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if (!*bufptr)
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return 2;
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*bufallocsizptr = hdr.framesiz;
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}
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else if (*bufallocsizptr < hdr.framesiz)
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{
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*bufptr = Brealloc(*bufptr, hdr.framesiz);
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if (!*bufptr)
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return 2;
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*bufallocsizptr = hdr.framesiz;
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}
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*bufsizptr = hdr.framesiz;
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if (kread(inhandle, *bufptr, hdr.framesiz) != (signed)hdr.framesiz)
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return 3;
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return 0;
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}
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const char *animvpx_nextpic_errmsg[] = {
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"All OK",
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"INTERNAL ERROR, animvpx_codec_ctx not initalized!",
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"OUT OF MEMORY",
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"couldn't read whole frame",
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"decoder error, couldn't decode frame",
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"picture dimension mismatch",
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"INTERNAL ERROR: read 0 frame length",
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"Failed getting corruption status (VP8D_GET_FRAME_CORRUPTED)"
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};
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// retrieves one picture-frame from the stream
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// pic format: lines of [Y U V 0] pixels
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// *picptr==NULL means EOF has been reached
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#if !defined __clang__ && !defined USING_LTO
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# ifdef DEBUGGINGAIDS
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ATTRIBUTE((optimize("O1")))
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# else
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ATTRIBUTE((optimize("O3")))
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# endif
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#endif
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int32_t animvpx_nextpic(animvpx_codec_ctx *codec, uint8_t **picptr)
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{
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int32_t ret, corrupted;
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uint32_t x, y;
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vpx_image_t *img;
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if (codec->initstate <= 0) // not inited or error
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return 1;
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if (codec->decstate == 0) // first time / begin
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{
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read_ivf_frame:
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corrupted = 0;
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ret = animvpx_read_frame(codec->inhandle, &codec->compbuf, &codec->compbuflen,
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&codec->compbufallocsiz);
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if (ret == 1)
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{
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// reached EOF
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*picptr = NULL;
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codec->decstate = 2;
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return 0;
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}
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else if (ret == 2 || ret == 3 || ret == 6)
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{
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*picptr = NULL;
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codec->decstate = -1;
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return ret;
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}
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// ^^^ keep in sync with all animvpx_read_frame() errors!
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// codec->compbuf now contains one IVF/VP8 frame
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codec->decstate = 1;
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// decode it!
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if (vpx_codec_decode(&codec->codec, codec->compbuf, codec->compbuflen, NULL, 0))
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{
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get_codec_error(codec);
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codec->decstate = -2;
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return 4;
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}
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if (vpx_codec_control(&codec->codec, VP8D_GET_FRAME_CORRUPTED, &corrupted))
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{
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get_codec_error(codec);
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codec->decstate = -2;
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return 7;
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}
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if (corrupted)
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OSD_Printf("warning: corrupted frame!\n");
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}
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img = vpx_codec_get_frame(&codec->codec, &codec->iter);
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if (img == NULL)
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{
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codec->iter = NULL; // !
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goto read_ivf_frame;
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}
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if (img->d_w != codec->width || img->d_h != codec->height)
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{
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codec->decstate = -1;
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return 5;
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}
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/*** 3 planes --> packed conversion ***/
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for (y=0; y<img->d_h; y++)
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for (x=0; x<img->d_w; x++)
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{
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codec->pic[(img->d_w*y + x)<<2] = img->planes[VPX_PLANE_Y][img->stride[VPX_PLANE_Y]*y + x];
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codec->pic[((img->d_w*y + x)<<2) + 1] = img->planes[VPX_PLANE_U][img->stride[VPX_PLANE_U]*(y>>1) + (x>>1)];
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codec->pic[((img->d_w*y + x)<<2) + 2] = img->planes[VPX_PLANE_V][img->stride[VPX_PLANE_V]*(y>>1) + (x>>1)];
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}
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*picptr = codec->pic;
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return 0;
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}
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/////////////// DRAWING! ///////////////
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static GLuint texname = 0;
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static int32_t texuploaded;
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// YUV->RGB conversion fragment shader adapted from
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// http://www.fourcc.org/fccyvrgb.php: "Want some sample code?"
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// direct link: http://www.fourcc.org/source/YUV420P-OpenGL-GLSLang.c
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static char *fragprog_src =
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"#version 120\n"
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"uniform sampler2D tex;\n"
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"void main(void) {\n"
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" float r,g,b,y,u,v;\n"
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" vec3 yuv;\n"
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" yuv = texture2D(tex, gl_TexCoord[0].st).rgb;\n"
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" y = yuv.r;\n"
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" u = yuv.g;\n"
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" v = yuv.b;\n"
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" y = 1.1643*(y-0.0625);\n"
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" u = u-0.5;\n"
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" v = v-0.5;\n"
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" r = y + 1.5958*v;\n"
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" g = y - 0.39173*u - 0.81290*v;\n"
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" b = y + 2.017*u;\n"
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" gl_FragColor = vec4(r,g,b,1.0);\n"
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"}\n";
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void animvpx_setup_glstate(void)
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{
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GLint gli;
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GLhandleARB FSHandle, PHandle;
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static char logbuf[512];
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// first, compile the fragment shader
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/* Set up program objects. */
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PHandle = bglCreateProgramObjectARB();
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FSHandle = bglCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);
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/* Compile the shader. */
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bglShaderSourceARB(FSHandle, 1, (const GLcharARB **)&fragprog_src, NULL);
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bglCompileShaderARB(FSHandle);
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/* Print the compilation log. */
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bglGetObjectParameterivARB(FSHandle, GL_OBJECT_COMPILE_STATUS_ARB, &gli);
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bglGetInfoLogARB(FSHandle, sizeof(logbuf), NULL, logbuf);
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if (logbuf[0])
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OSD_Printf("animvpx compile log: %s\n", logbuf);
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/* Create a complete program object. */
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bglAttachObjectARB(PHandle, FSHandle);
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bglLinkProgramARB(PHandle);
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/* And print the link log. */
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bglGetInfoLogARB(PHandle, sizeof(logbuf), NULL, logbuf);
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if (logbuf[0])
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OSD_Printf("animvpx link log: %s\n", logbuf);
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/* Finally, use the program. */
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bglUseProgramObjectARB(PHandle);
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////////// GL STATE //////////
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//Force fullscreen (glox1=-1 forces it to restore afterwards)
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bglViewport(0,0,xdim,ydim); glox1 = -1;
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bglMatrixMode(GL_MODELVIEW);
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bglLoadIdentity();
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bglMatrixMode(GL_PROJECTION);
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bglLoadIdentity();
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bglMatrixMode(GL_COLOR);
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bglLoadIdentity();
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bglMatrixMode(GL_TEXTURE);
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bglLoadIdentity();
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bglPushAttrib(GL_ENABLE_BIT);
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bglDisable(GL_ALPHA_TEST);
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// bglDisable(GL_LIGHTING);
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bglDisable(GL_DEPTH_TEST);
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bglDisable(GL_BLEND);
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bglDisable(GL_CULL_FACE);
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// bglDisable(GL_SCISSOR_TEST);
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bglEnable(GL_TEXTURE_2D);
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bglActiveTextureARB(GL_TEXTURE0_ARB);
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bglGenTextures(1, &texname);
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// gli = bglGetUniformLocationARB(PHandle,"tex");
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// bglUniform1iARB(gli,0); // 0: texture unit
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bglBindTexture(GL_TEXTURE_2D, texname);
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bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
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bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
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bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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bglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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texuploaded = 0;
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////////////////////
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bglClearColor(0.0,0.0,0.0,1.0);
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bglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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}
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void animvpx_restore_glstate(void)
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{
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bglUseProgramObjectARB(0);
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bglPopAttrib();
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bglDeleteTextures(1, &texname);
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texname = 0;
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texuploaded = 0;
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}
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int32_t animvpx_render_frame(const animvpx_codec_ctx *codec)
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{
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if (codec->initstate <= 0) // not inited or error
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return 1;
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if (codec->pic == NULL)
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return 2; // shouldn't happen
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if (!texuploaded)
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{
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bglTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, codec->width,codec->height,
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0, GL_RGBA, GL_UNSIGNED_BYTE, codec->pic);
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texuploaded = 1;
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}
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else
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{
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bglTexSubImage2D(GL_TEXTURE_2D, 0, 0,0, codec->width,codec->height,
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GL_RGBA, GL_UNSIGNED_BYTE, codec->pic);
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}
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{
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float vid_wbyh = ((float)codec->width)/codec->height;
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float scr_wbyh = ((float)xdim)/ydim;
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float x=1.0, y=1.0;
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#if 1
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// aspect correction by pillarboxing/letterboxing
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// TODO: fullscreen? can't assume square pixels there
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if (vid_wbyh != scr_wbyh)
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{
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if (vid_wbyh < scr_wbyh)
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x = vid_wbyh/scr_wbyh;
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else
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y = scr_wbyh/vid_wbyh;
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}
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#endif
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bglBegin(GL_QUADS);
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bglTexCoord2f(0.0,1.0);
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bglVertex3f(-x, -y, 0.0);
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bglTexCoord2f(0.0,0.0);
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bglVertex3f(-x, y, 0.0);
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bglTexCoord2f(1.0,0.0);
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bglVertex3f(x, y, 0.0);
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bglTexCoord2f(1.0,1.0);
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bglVertex3f(x, -y, 0.0);
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bglEnd();
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}
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return 0;
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}
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