mirror of
https://github.com/mpv-player/mpv
synced 2024-12-19 05:15:12 +00:00
8c43e12b20
This has a number of user-visible changes: 1. A new flag blend-subtitles (default on for opengl-hq) to control this behavior. 2. The OSD itself will not be color managed or affected by gamma controls. To get subtitle CMS/gamma, blend-subtitles must be used. 3. When enabled, this will make subtitles be cleanly interpolated by :interpolation, and also dithered etc. (just like the normal output). Signed-off-by: wm4 <wm4@nowhere>
419 lines
13 KiB
C
419 lines
13 KiB
C
/*
|
|
* This file is part of mplayer.
|
|
*
|
|
* mplayer is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* mplayer is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with mplayer. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <libavutil/common.h>
|
|
|
|
#include "bitmap_packer.h"
|
|
|
|
#include "gl_utils.h"
|
|
#include "gl_osd.h"
|
|
|
|
struct osd_fmt_entry {
|
|
GLint internal_format;
|
|
GLint format;
|
|
GLenum type;
|
|
};
|
|
|
|
// glBlendFuncSeparate() arguments
|
|
static const int blend_factors[SUBBITMAP_COUNT][4] = {
|
|
[SUBBITMAP_LIBASS] = {GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
|
|
GL_ONE, GL_ONE_MINUS_SRC_ALPHA},
|
|
[SUBBITMAP_RGBA] = {GL_ONE, GL_ONE_MINUS_SRC_ALPHA,
|
|
GL_ONE, GL_ONE_MINUS_SRC_ALPHA},
|
|
};
|
|
|
|
static const struct osd_fmt_entry osd_to_gl3_formats[SUBBITMAP_COUNT] = {
|
|
[SUBBITMAP_LIBASS] = {GL_RED, GL_RED, GL_UNSIGNED_BYTE},
|
|
[SUBBITMAP_RGBA] = {GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE},
|
|
};
|
|
|
|
static const struct osd_fmt_entry osd_to_gles3_formats[SUBBITMAP_COUNT] = {
|
|
[SUBBITMAP_LIBASS] = {GL_R8, GL_RED, GL_UNSIGNED_BYTE},
|
|
[SUBBITMAP_RGBA] = {GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE},
|
|
};
|
|
|
|
static const struct osd_fmt_entry osd_to_gl2_formats[SUBBITMAP_COUNT] = {
|
|
[SUBBITMAP_LIBASS] = {GL_LUMINANCE, GL_LUMINANCE, GL_UNSIGNED_BYTE},
|
|
[SUBBITMAP_RGBA] = {GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE},
|
|
};
|
|
|
|
struct vertex {
|
|
float position[2];
|
|
float texcoord[2];
|
|
uint8_t ass_color[4];
|
|
};
|
|
|
|
static const struct gl_vao_entry vertex_vao[] = {
|
|
{"position", 2, GL_FLOAT, false, offsetof(struct vertex, position)},
|
|
{"texcoord" , 2, GL_FLOAT, false, offsetof(struct vertex, texcoord)},
|
|
{"ass_color", 4, GL_UNSIGNED_BYTE, true, offsetof(struct vertex, ass_color)},
|
|
{0}
|
|
};
|
|
|
|
struct mpgl_osd_part {
|
|
enum sub_bitmap_format format;
|
|
int change_id;
|
|
GLuint texture;
|
|
int w, h;
|
|
GLuint buffer;
|
|
int num_subparts;
|
|
struct sub_bitmap *subparts;
|
|
struct vertex *vertices;
|
|
struct bitmap_packer *packer;
|
|
};
|
|
|
|
struct mpgl_osd {
|
|
struct mp_log *log;
|
|
struct osd_state *osd;
|
|
GL *gl;
|
|
bool use_pbo;
|
|
bool scaled;
|
|
struct mpgl_osd_part *parts[MAX_OSD_PARTS];
|
|
const struct osd_fmt_entry *fmt_table;
|
|
bool formats[SUBBITMAP_COUNT];
|
|
struct gl_vao vao;
|
|
// temporary
|
|
int stereo_mode;
|
|
int display_size[2];
|
|
void *scratch;
|
|
};
|
|
|
|
struct mpgl_osd *mpgl_osd_init(GL *gl, struct mp_log *log, struct osd_state *osd)
|
|
{
|
|
GLint max_texture_size;
|
|
gl->GetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
|
|
|
|
struct mpgl_osd *ctx = talloc_ptrtype(NULL, ctx);
|
|
*ctx = (struct mpgl_osd) {
|
|
.log = log,
|
|
.osd = osd,
|
|
.gl = gl,
|
|
.fmt_table = osd_to_gl3_formats,
|
|
.scratch = talloc_zero_size(ctx, 1),
|
|
};
|
|
|
|
if (gl->es >= 300) {
|
|
ctx->fmt_table = osd_to_gles3_formats;
|
|
} else if (!(gl->mpgl_caps & MPGL_CAP_TEX_RG)) {
|
|
ctx->fmt_table = osd_to_gl2_formats;
|
|
}
|
|
|
|
for (int n = 0; n < MAX_OSD_PARTS; n++) {
|
|
struct mpgl_osd_part *p = talloc_ptrtype(ctx, p);
|
|
*p = (struct mpgl_osd_part) {
|
|
.packer = talloc_struct(p, struct bitmap_packer, {
|
|
.w_max = max_texture_size,
|
|
.h_max = max_texture_size,
|
|
}),
|
|
};
|
|
ctx->parts[n] = p;
|
|
}
|
|
|
|
for (int n = 0; n < SUBBITMAP_COUNT; n++)
|
|
ctx->formats[n] = ctx->fmt_table[n].type != 0;
|
|
|
|
gl_vao_init(&ctx->vao, gl, sizeof(struct vertex), vertex_vao);
|
|
|
|
return ctx;
|
|
}
|
|
|
|
void mpgl_osd_destroy(struct mpgl_osd *ctx)
|
|
{
|
|
if (!ctx)
|
|
return;
|
|
|
|
GL *gl = ctx->gl;
|
|
|
|
gl_vao_uninit(&ctx->vao);
|
|
|
|
for (int n = 0; n < MAX_OSD_PARTS; n++) {
|
|
struct mpgl_osd_part *p = ctx->parts[n];
|
|
gl->DeleteTextures(1, &p->texture);
|
|
if (gl->DeleteBuffers)
|
|
gl->DeleteBuffers(1, &p->buffer);
|
|
}
|
|
talloc_free(ctx);
|
|
}
|
|
|
|
void mpgl_osd_set_options(struct mpgl_osd *ctx, bool pbo)
|
|
{
|
|
ctx->use_pbo = pbo;
|
|
}
|
|
|
|
static bool upload_pbo(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
|
|
struct sub_bitmaps *imgs)
|
|
{
|
|
GL *gl = ctx->gl;
|
|
bool success = true;
|
|
struct osd_fmt_entry fmt = ctx->fmt_table[imgs->format];
|
|
int pix_stride = glFmt2bpp(fmt.format, fmt.type);
|
|
|
|
if (!osd->buffer) {
|
|
gl->GenBuffers(1, &osd->buffer);
|
|
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, osd->buffer);
|
|
gl->BufferData(GL_PIXEL_UNPACK_BUFFER, osd->w * osd->h * pix_stride,
|
|
NULL, GL_DYNAMIC_COPY);
|
|
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
|
|
}
|
|
|
|
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, osd->buffer);
|
|
char *data = gl->MapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
|
|
if (!data) {
|
|
success = false;
|
|
} else {
|
|
struct pos bb[2];
|
|
packer_get_bb(osd->packer, bb);
|
|
size_t stride = osd->w * pix_stride;
|
|
packer_copy_subbitmaps(osd->packer, imgs, data, pix_stride, stride);
|
|
if (!gl->UnmapBuffer(GL_PIXEL_UNPACK_BUFFER))
|
|
success = false;
|
|
glUploadTex(gl, GL_TEXTURE_2D, fmt.format, fmt.type, NULL, stride,
|
|
bb[0].x, bb[0].y, bb[1].x - bb[0].x, bb[1].y - bb[0].y, 0);
|
|
}
|
|
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
|
|
|
|
if (!success) {
|
|
MP_FATAL(ctx, "Error: can't upload subtitles! "
|
|
"Remove the 'pbo' suboption.\n");
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
static void upload_tex(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
|
|
struct sub_bitmaps *imgs)
|
|
{
|
|
struct osd_fmt_entry fmt = ctx->fmt_table[imgs->format];
|
|
if (osd->packer->padding) {
|
|
struct pos bb[2];
|
|
packer_get_bb(osd->packer, bb);
|
|
glClearTex(ctx->gl, GL_TEXTURE_2D, fmt.format, fmt.type,
|
|
bb[0].x, bb[0].y, bb[1].x - bb[0].y, bb[1].y - bb[0].y,
|
|
0, &ctx->scratch);
|
|
}
|
|
for (int n = 0; n < osd->packer->count; n++) {
|
|
struct sub_bitmap *s = &imgs->parts[n];
|
|
struct pos p = osd->packer->result[n];
|
|
|
|
glUploadTex(ctx->gl, GL_TEXTURE_2D, fmt.format, fmt.type,
|
|
s->bitmap, s->stride, p.x, p.y, s->w, s->h, 0);
|
|
}
|
|
}
|
|
|
|
static bool upload_osd(struct mpgl_osd *ctx, struct mpgl_osd_part *osd,
|
|
struct sub_bitmaps *imgs)
|
|
{
|
|
GL *gl = ctx->gl;
|
|
|
|
// assume 2x2 filter on scaling
|
|
osd->packer->padding = ctx->scaled || imgs->scaled;
|
|
int r = packer_pack_from_subbitmaps(osd->packer, imgs);
|
|
if (r < 0) {
|
|
MP_ERR(ctx, "OSD bitmaps do not fit on a surface with the maximum "
|
|
"supported size %dx%d.\n", osd->packer->w_max, osd->packer->h_max);
|
|
return false;
|
|
}
|
|
|
|
struct osd_fmt_entry fmt = ctx->fmt_table[imgs->format];
|
|
assert(fmt.type != 0);
|
|
|
|
if (!osd->texture)
|
|
gl->GenTextures(1, &osd->texture);
|
|
|
|
gl->BindTexture(GL_TEXTURE_2D, osd->texture);
|
|
|
|
if (osd->packer->w > osd->w || osd->packer->h > osd->h
|
|
|| osd->format != imgs->format)
|
|
{
|
|
osd->format = imgs->format;
|
|
osd->w = FFMAX(32, osd->packer->w);
|
|
osd->h = FFMAX(32, osd->packer->h);
|
|
|
|
gl->TexImage2D(GL_TEXTURE_2D, 0, fmt.internal_format, osd->w, osd->h,
|
|
0, fmt.format, fmt.type, NULL);
|
|
|
|
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
|
|
if (gl->DeleteBuffers)
|
|
gl->DeleteBuffers(1, &osd->buffer);
|
|
osd->buffer = 0;
|
|
}
|
|
|
|
bool uploaded = false;
|
|
if (ctx->use_pbo)
|
|
uploaded = upload_pbo(ctx, osd, imgs);
|
|
if (!uploaded)
|
|
upload_tex(ctx, osd, imgs);
|
|
|
|
gl->BindTexture(GL_TEXTURE_2D, 0);
|
|
|
|
return true;
|
|
}
|
|
|
|
static void gen_osd_cb(void *pctx, struct sub_bitmaps *imgs)
|
|
{
|
|
struct mpgl_osd *ctx = pctx;
|
|
|
|
if (imgs->num_parts == 0 || !ctx->formats[imgs->format])
|
|
return;
|
|
|
|
struct mpgl_osd_part *osd = ctx->parts[imgs->render_index];
|
|
|
|
if (imgs->change_id != osd->change_id) {
|
|
if (!upload_osd(ctx, osd, imgs))
|
|
osd->packer->count = 0;
|
|
|
|
osd->change_id = imgs->change_id;
|
|
}
|
|
osd->num_subparts = osd->packer->count;
|
|
|
|
MP_TARRAY_GROW(osd, osd->subparts, osd->num_subparts);
|
|
memcpy(osd->subparts, imgs->parts,
|
|
osd->num_subparts * sizeof(osd->subparts[0]));
|
|
}
|
|
|
|
static void write_quad(struct vertex *va, struct gl_transform t,
|
|
float x0, float y0, float x1, float y1,
|
|
float tx0, float ty0, float tx1, float ty1,
|
|
float tex_w, float tex_h, const uint8_t color[4])
|
|
{
|
|
gl_transform_vec(t, &x0, &y0);
|
|
gl_transform_vec(t, &x1, &y1);
|
|
|
|
#define COLOR_INIT {color[0], color[1], color[2], color[3]}
|
|
va[0] = (struct vertex){ {x0, y0}, {tx0 / tex_w, ty0 / tex_h}, COLOR_INIT };
|
|
va[1] = (struct vertex){ {x0, y1}, {tx0 / tex_w, ty1 / tex_h}, COLOR_INIT };
|
|
va[2] = (struct vertex){ {x1, y0}, {tx1 / tex_w, ty0 / tex_h}, COLOR_INIT };
|
|
va[3] = (struct vertex){ {x1, y1}, {tx1 / tex_w, ty1 / tex_h}, COLOR_INIT };
|
|
va[4] = va[2];
|
|
va[5] = va[1];
|
|
#undef COLOR_INIT
|
|
}
|
|
|
|
static int generate_verts(struct mpgl_osd_part *part, struct gl_transform t)
|
|
{
|
|
int num_vertices = part->num_subparts * 6;
|
|
MP_TARRAY_GROW(part, part->vertices, num_vertices);
|
|
|
|
for (int n = 0; n < part->num_subparts; n++) {
|
|
struct sub_bitmap *b = &part->subparts[n];
|
|
struct pos pos = part->packer->result[n];
|
|
struct vertex *va = part->vertices;
|
|
|
|
// NOTE: the blend color is used with SUBBITMAP_LIBASS only, so it
|
|
// doesn't matter that we upload garbage for the other formats
|
|
uint32_t c = b->libass.color;
|
|
uint8_t color[4] = { c >> 24, (c >> 16) & 0xff,
|
|
(c >> 8) & 0xff, 255 - (c & 0xff) };
|
|
|
|
write_quad(&va[n * 6], t,
|
|
b->x, b->y, b->x + b->dw, b->y + b->dh,
|
|
pos.x, pos.y, pos.x + b->w, pos.y + b->h,
|
|
part->w, part->h, color);
|
|
}
|
|
|
|
return num_vertices;
|
|
}
|
|
|
|
static void draw_part(struct mpgl_osd *ctx, int index, struct gl_transform t)
|
|
{
|
|
GL *gl = ctx->gl;
|
|
struct mpgl_osd_part *part = ctx->parts[index];
|
|
|
|
int num_vertices = generate_verts(part, t);
|
|
if (!num_vertices)
|
|
return;
|
|
|
|
gl->Enable(GL_BLEND);
|
|
gl->BindTexture(GL_TEXTURE_2D, part->texture);
|
|
|
|
const int *factors = &blend_factors[part->format][0];
|
|
gl->BlendFuncSeparate(factors[0], factors[1], factors[2], factors[3]);
|
|
|
|
gl_vao_draw_data(&ctx->vao, GL_TRIANGLES, part->vertices, num_vertices);
|
|
|
|
gl->BindTexture(GL_TEXTURE_2D, 0);
|
|
gl->Disable(GL_BLEND);
|
|
}
|
|
|
|
// number of screen divisions per axis (x=0, y=1) for the current 3D mode
|
|
static void get_3d_side_by_side(int stereo_mode, int div[2])
|
|
{
|
|
div[0] = div[1] = 1;
|
|
switch (stereo_mode) {
|
|
case MP_STEREO3D_SBS2L:
|
|
case MP_STEREO3D_SBS2R: div[0] = 2; break;
|
|
case MP_STEREO3D_AB2R:
|
|
case MP_STEREO3D_AB2L: div[1] = 2; break;
|
|
}
|
|
}
|
|
|
|
void mpgl_osd_draw_part(struct mpgl_osd *ctx, int vp_w, int vp_h, int index)
|
|
{
|
|
int div[2];
|
|
get_3d_side_by_side(ctx->stereo_mode, div);
|
|
|
|
ctx->gl->Viewport(0, 0, vp_w, abs(vp_h));
|
|
|
|
for (int x = 0; x < div[0]; x++) {
|
|
for (int y = 0; y < div[1]; y++) {
|
|
struct gl_transform t;
|
|
gl_transform_ortho(&t, 0, vp_w, 0, vp_h);
|
|
|
|
float a_x = ctx->display_size[0] * x;
|
|
float a_y = ctx->display_size[1] * y;
|
|
t.t[0] += a_x * t.m[0][0] + a_y * t.m[1][0];
|
|
t.t[1] += a_x * t.m[0][1] + a_y * t.m[1][1];
|
|
|
|
draw_part(ctx, index, t);
|
|
}
|
|
}
|
|
}
|
|
|
|
enum sub_bitmap_format mpgl_osd_get_part_format(struct mpgl_osd *ctx, int index)
|
|
{
|
|
assert(index >= 0 && index < MAX_OSD_PARTS);
|
|
return ctx->parts[index]->format;
|
|
}
|
|
|
|
struct gl_vao *mpgl_osd_get_vao(struct mpgl_osd *ctx)
|
|
{
|
|
return &ctx->vao;
|
|
}
|
|
|
|
void mpgl_osd_generate(struct mpgl_osd *ctx, struct mp_osd_res res, double pts,
|
|
int stereo_mode, int draw_flags)
|
|
{
|
|
for (int n = 0; n < MAX_OSD_PARTS; n++)
|
|
ctx->parts[n]->num_subparts = 0;
|
|
|
|
int div[2];
|
|
get_3d_side_by_side(stereo_mode, div);
|
|
|
|
struct mp_osd_res s_res = res;
|
|
ctx->display_size[0] = s_res.w = s_res.w / div[0];
|
|
ctx->display_size[1] = s_res.h = s_res.h / div[1];
|
|
|
|
osd_draw(ctx->osd, s_res, pts, draw_flags, ctx->formats, gen_osd_cb, ctx);
|
|
ctx->stereo_mode = stereo_mode;
|
|
}
|