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generic-pc: add alternative clutter based framebuffer

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Add a framebuffer implementation based on clutter instead of "raw"
OpenGL. The performance is slightly worse, but it might bring some
platform abstraction and other benefits for the future.
This commit is contained in:
Stefan Seyfried
2016-10-30 13:08:34 +01:00
parent acac2e4f5a
commit 95d07cdfc9
6 changed files with 549 additions and 15 deletions
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20
generic-pc/video.cpp
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@@ -23,6 +23,7 @@
* TODO: buffer handling surely needs some locking...
*/
#include "config.h"
#include <unistd.h>
#include <cstring>
#include <cstdio>
@@ -38,6 +39,13 @@ extern "C" {
/* my own buf 256k */
#define DMX_BUF_SZ 0x20000
#if USE_OPENGL
#define VDEC_PIXFMT AV_PIX_FMT_RGB32
#endif
#if USE_CLUTTER
#define VDEC_PIXFMT AV_PIX_FMT_BGR24
#endif
#include "video_hal.h"
#include "dmx_hal.h"
#include "glfb_priv.h"
@@ -317,9 +325,9 @@ void VDec::ShowPicture(const char *fname)
if (avpkt.size > len)
lt_info("%s: WARN: pkt->size %d != len %d\n", __func__, avpkt.size, len);
if (got_frame) {
unsigned int need = avpicture_get_size(AV_PIX_FMT_RGB32, c->width, c->height);
unsigned int need = avpicture_get_size(VDEC_PIXFMT, c->width, c->height);
struct SwsContext *convert = sws_getContext(c->width, c->height, c->pix_fmt,
c->width, c->height, AV_PIX_FMT_RGB32,
c->width, c->height, VDEC_PIXFMT,
SWS_BICUBIC, 0, 0, 0);
if (!convert)
lt_info("%s: ERROR setting up SWS context\n", __func__);
@@ -328,7 +336,7 @@ void VDec::ShowPicture(const char *fname)
SWFramebuffer *f = &buffers[buf_in];
if (f->size() < need)
f->resize(need);
avpicture_fill((AVPicture *)rgbframe, &(*f)[0], AV_PIX_FMT_RGB32,
avpicture_fill((AVPicture *)rgbframe, &(*f)[0], VDEC_PIXFMT,
c->width, c->height);
sws_scale(convert, frame->data, frame->linesize, 0, c->height,
rgbframe->data, rgbframe->linesize);
@@ -543,10 +551,10 @@ void VDec::run(void)
if (avpkt.size > len)
lt_info("%s: WARN: pkt->size %d != len %d\n", __func__, avpkt.size, len);
if (got_frame) {
unsigned int need = avpicture_get_size(AV_PIX_FMT_RGB32, c->width, c->height);
unsigned int need = avpicture_get_size(VDEC_PIXFMT, c->width, c->height);
convert = sws_getCachedContext(convert,
c->width, c->height, c->pix_fmt,
c->width, c->height, AV_PIX_FMT_RGB32,
c->width, c->height, VDEC_PIXFMT,
SWS_BICUBIC, 0, 0, 0);
if (!convert)
lt_info("%s: ERROR setting up SWS context\n", __func__);
@@ -555,7 +563,7 @@ void VDec::run(void)
SWFramebuffer *f = &buffers[buf_in];
if (f->size() < need)
f->resize(need);
avpicture_fill((AVPicture *)rgbframe, &(*f)[0], AV_PIX_FMT_RGB32,
avpicture_fill((AVPicture *)rgbframe, &(*f)[0], VDEC_PIXFMT,
c->width, c->height);
sws_scale(convert, frame->data, frame->linesize, 0, c->height,
rgbframe->data, rgbframe->linesize);