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mpv/video/out/vo_opengl_old.c
wm4 9a210ca2d5 Audit and replace all ctype.h uses 
Something like "char *s = ...; isdigit(s[0]);" triggers undefined
behavior, because char can be signed, and thus s[0] can be a negative
value. The is*() functions require unsigned char _or_ EOF. EOF is a
special value outside of unsigned char range, thus the argument to the
is*() functions can't be a char.

This undefined behavior can actually trigger crashes if the
implementation of these functions e.g. uses lookup tables, which are
then indexed with out-of-range values.

Replace all <ctype.h> uses with our own custom mp_is*() functions added
with misc/ctype.h. As a bonus, these functions are locale-independent.
(Although currently, we _require_ C locale for other reasons.)
2014-07-01 23:11:08 +02:00

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/*
* This file is part of MPlayer.
*
* Original author: Reimar Doeffinger <Reimar.Doeffinger@gmx.de>
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* You can alternatively redistribute this file and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdbool.h>
#include <assert.h>
#include "config.h"
#include "talloc.h"
#include "common/msg.h"
#include "misc/ctype.h"
#include "options/m_option.h"
#include "vo.h"
#include "video/vfcap.h"
#include "video/mp_image.h"
#include "sub/osd.h"
#include "gl_common.h"
#include "gl_osd.h"
#include "video/memcpy_pic.h"
#include "pnm_loader.h"
//for gl_priv.use_yuv
#define MASK_ALL_YUV (~(1 << YUV_CONVERSION_NONE))
#define MASK_NOT_COMBINERS (~((1 << YUV_CONVERSION_NONE) | (1 << YUV_CONVERSION_COMBINERS)))
#define MASK_GAMMA_SUPPORT (MASK_NOT_COMBINERS & ~(1 << YUV_CONVERSION_FRAGMENT))
struct gl_priv {
MPGLContext *glctx;
GL *gl;
int allow_sw;
int scaled_osd;
struct mpgl_osd *osd;
int osd_color;
double osd_pts;
int use_ycbcr;
int use_yuv;
int is_yuv;
int lscale;
int cscale;
float filter_strength;
float noise_strength;
int yuvconvtype;
int use_rectangle;
int err_shown;
uint32_t image_width;
uint32_t image_height;
uint32_t image_format;
int many_fmts;
int have_texture_rg;
int max_tex_component_size;
int ati_hack;
int force_pbo;
int use_glFinish;
int swap_interval;
GLenum target;
GLint texfmt;
GLenum gl_format;
GLenum gl_type;
GLuint buffer;
GLuint buffer_uv[2];
int buffersize;
int buffersize_uv;
void *bufferptr;
void *bufferptr_uv[2];
GLuint fragprog;
GLuint default_texs[22];
char *custom_prog;
char *custom_tex;
int custom_tlin;
int custom_trect;
int mipmap_gen;
int stereo_mode;
char *backend_arg;
struct mp_csp_equalizer video_eq;
int texture_width;
int texture_height;
int mpi_flipped;
int vo_flipped;
struct mp_rect src_rect; // displayed part of the source video
struct mp_rect dst_rect; // video rectangle on output window
struct mp_osd_res osd_res;
int slice_height;
};
static int glFindFormat(uint32_t format, int have_texture_rg, int *bpp,
GLint *gl_texfmt, GLenum *gl_format, GLenum *gl_type);
static void glCreateClearTex(GL *gl, GLenum target, GLenum fmt, GLenum format,
GLenum type, GLint filter, int w, int h,
unsigned char val);
static int glCreatePPMTex(GL *gl, GLenum target, GLenum fmt, GLint filter,
FILE *f, int *width, int *height, int *maxval);
static void glDrawTex(GL *gl, GLfloat x, GLfloat y, GLfloat w, GLfloat h,
GLfloat tx, GLfloat ty, GLfloat tw, GLfloat th,
int sx, int sy, int rect_tex, int is_yv12, int flip);
static int loadGPUProgram(struct vo *vo, GL *gl, GLenum target, char *prog);
//! do not use YUV conversion, this should always stay 0
#define YUV_CONVERSION_NONE 0
//! use nVidia specific register combiners for YUV conversion
//! implementation has been removed
#define YUV_CONVERSION_COMBINERS 1
//! use a fragment program for YUV conversion
#define YUV_CONVERSION_FRAGMENT 2
//! use a fragment program for YUV conversion with gamma using POW
#define YUV_CONVERSION_FRAGMENT_POW 3
//! use a fragment program with additional table lookup for YUV conversion
#define YUV_CONVERSION_FRAGMENT_LOOKUP 4
//! use ATI specific register combiners ("fragment program")
#define YUV_CONVERSION_COMBINERS_ATI 5
//! use a fragment program with 3D table lookup for YUV conversion
#define YUV_CONVERSION_FRAGMENT_LOOKUP3D 6
//! use ATI specific "text" register combiners ("fragment program")
#define YUV_CONVERSION_TEXT_FRAGMENT 7
//! use normal bilinear scaling for textures
#define YUV_SCALER_BILIN 0
//! use higher quality bicubic scaling for textures
#define YUV_SCALER_BICUB 1
//! use cubic scaling in X and normal linear scaling in Y direction
#define YUV_SCALER_BICUB_X 2
//! use cubic scaling without additional lookup texture
#define YUV_SCALER_BICUB_NOTEX 3
#define YUV_SCALER_UNSHARP 4
#define YUV_SCALER_UNSHARP2 5
//! mask for conversion type
#define YUV_CONVERSION_MASK 0xF
//! mask for scaler type
#define YUV_SCALER_MASK 0xF
//! shift value for luminance scaler type
#define YUV_LUM_SCALER_SHIFT 8
//! shift value for chrominance scaler type
#define YUV_CHROM_SCALER_SHIFT 12
//! extract conversion out of type
#define YUV_CONVERSION(t) ((t) & YUV_CONVERSION_MASK)
//! extract luminance scaler out of type
#define YUV_LUM_SCALER(t) (((t) >> YUV_LUM_SCALER_SHIFT) & YUV_SCALER_MASK)
//! extract chrominance scaler out of type
#define YUV_CHROM_SCALER(t) (((t) >> YUV_CHROM_SCALER_SHIFT) & YUV_SCALER_MASK)
#define SET_YUV_CONVERSION(c) ((c) & YUV_CONVERSION_MASK)
#define SET_YUV_LUM_SCALER(s) (((s) & YUV_SCALER_MASK) << YUV_LUM_SCALER_SHIFT)
#define SET_YUV_CHROM_SCALER(s) (((s) & YUV_SCALER_MASK) << YUV_CHROM_SCALER_SHIFT)
//! returns whether the yuv conversion supports large brightness range etc.
static inline int glYUVLargeRange(int conv)
{
switch (conv) {
case YUV_CONVERSION_NONE:
case YUV_CONVERSION_COMBINERS_ATI:
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
case YUV_CONVERSION_TEXT_FRAGMENT:
return 0;
}
return 1;
}
typedef struct {
GLenum target;
int type;
struct mp_csp_params csp_params;
int texw;
int texh;
int chrom_texw;
int chrom_texh;
float filter_strength;
float noise_strength;
} gl_conversion_params_t;
static int glAutodetectYUVConversion(GL *gl);
static void glSetupYUVConversion(struct vo *vo, GL *gl,
gl_conversion_params_t *params);
static void glEnableYUVConversion(GL *gl, GLenum target, int type);
static void glDisableYUVConversion(GL *gl, GLenum target, int type);
//! always return this format as internal texture format in glFindFormat
#define TEXTUREFORMAT_ALWAYS GL_RGB8
#undef TEXTUREFORMAT_ALWAYS
/**
* \brief find the OpenGL settings coresponding to format.
*
* All parameters may be NULL.
* \param fmt MPlayer format to analyze.
* \param dummy reserved
* \param gl_texfmt [OUT] internal texture format that fits the
* image format, not necessarily the best for performance.
* \param gl_format [OUT] OpenGL format for this image format.
* \param gl_type [OUT] OpenGL type for this image format.
* \return 1 if format is supported by OpenGL, 0 if not.
* \ingroup gltexture
*/
static int glFindFormat(uint32_t fmt, int have_texture_rg, int *dummy,
GLint *gl_texfmt, GLenum *gl_format, GLenum *gl_type)
{
int supported = 1;
GLenum dummy2;
GLint dummy3;
if (!gl_texfmt)
gl_texfmt = &dummy3;
if (!gl_format)
gl_format = &dummy2;
if (!gl_type)
gl_type = &dummy2;
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(fmt);
if (desc.flags & MP_IMGFLAG_YUV_P) {
// reduce the possible cases a bit
if (desc.plane_bits > 8)
fmt = IMGFMT_420P16;
else
fmt = IMGFMT_420P;
}
*gl_texfmt = 3;
switch (fmt) {
case IMGFMT_RGB48:
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_SHORT;
break;
case IMGFMT_RGB24:
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_RGBA:
*gl_texfmt = 4;
*gl_format = GL_RGBA;
*gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_420P16:
supported = 0; // no native YUV support
*gl_texfmt = have_texture_rg ? GL_R16 : GL_LUMINANCE16;
*gl_format = have_texture_rg ? GL_RED : GL_LUMINANCE;
*gl_type = GL_UNSIGNED_SHORT;
break;
case IMGFMT_420P:
supported = 0; // no native YV12 support
case IMGFMT_Y8:
*gl_texfmt = 1;
*gl_format = GL_LUMINANCE;
*gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_UYVY:
*gl_texfmt = GL_YCBCR_MESA;
*gl_format = GL_YCBCR_MESA;
*gl_type = fmt == IMGFMT_UYVY ? GL_UNSIGNED_SHORT_8_8 : GL_UNSIGNED_SHORT_8_8_REV;
break;
#if 0
// we do not support palettized formats, although the format the
// swscale produces works
case IMGFMT_RGB8:
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_BYTE_2_3_3_REV;
break;
#endif
case IMGFMT_BGR555:
*gl_format = GL_RGBA;
*gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case IMGFMT_BGR565:
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_SHORT_5_6_5_REV;
break;
#if 0
case IMGFMT_BGR8:
// special case as red and blue have a different number of bits.
// GL_BGR and GL_UNSIGNED_BYTE_3_3_2 isn't supported at least
// by nVidia drivers, and in addition would give more bits to
// blue than to red, which isn't wanted
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_BYTE_3_3_2;
break;
#endif
case IMGFMT_RGB555:
*gl_format = GL_BGRA;
*gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
break;
case IMGFMT_RGB565:
*gl_format = GL_RGB;
*gl_type = GL_UNSIGNED_SHORT_5_6_5;
break;
case IMGFMT_BGR24:
*gl_format = GL_BGR;
*gl_type = GL_UNSIGNED_BYTE;
break;
case IMGFMT_BGRA:
*gl_texfmt = 4;
*gl_format = GL_BGRA;
*gl_type = GL_UNSIGNED_BYTE;
break;
default:
*gl_texfmt = 4;
*gl_format = GL_RGBA;
*gl_type = GL_UNSIGNED_BYTE;
supported = 0;
}
#ifdef TEXTUREFORMAT_ALWAYS
*gl_texfmt = TEXTUREFORMAT_ALWAYS;
#endif
return supported;
}
/**
* \brief create a texture and set some defaults
* \param target texture taget, usually GL_TEXTURE_2D
* \param fmt internal texture format
* \param format texture host data format
* \param type texture host data type
* \param filter filter used for scaling, e.g. GL_LINEAR
* \param w texture width
* \param h texture height
* \param val luminance value to fill texture with
* \ingroup gltexture
*/
static void glCreateClearTex(GL *gl, GLenum target, GLenum fmt, GLenum format,
GLenum type, GLint filter, int w, int h,
unsigned char val)
{
GLfloat fval = (GLfloat)val / 255.0;
GLfloat border[4] = {
fval, fval, fval, fval
};
int stride;
char *init;
if (w == 0)
w = 1;
if (h == 0)
h = 1;
stride = w * glFmt2bpp(format, type);
if (!stride)
return;
init = malloc(stride * h);
memset(init, val, stride * h);
glAdjustAlignment(gl, stride);
gl->PixelStorei(GL_UNPACK_ROW_LENGTH, w);
gl->TexImage2D(target, 0, fmt, w, h, 0, format, type, init);
gl->TexParameterf(target, GL_TEXTURE_PRIORITY, 1.0);
gl->TexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
gl->TexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
gl->TexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// Border texels should not be used with CLAMP_TO_EDGE
// We set a sane default anyway.
gl->TexParameterfv(target, GL_TEXTURE_BORDER_COLOR, border);
free(init);
}
static GLint detect_hqtexfmt(GL *gl)
{
const char *extensions = (const char *)gl->GetString(GL_EXTENSIONS);
if (strstr(extensions, "_texture_float"))
return GL_RGB32F;
else if (strstr(extensions, "NV_float_buffer"))
return GL_FLOAT_RGB32_NV;
return GL_RGB16;
}
/**
* \brief creates a texture from a PPM file
* \param target texture taget, usually GL_TEXTURE_2D
* \param fmt internal texture format, 0 for default
* \param filter filter used for scaling, e.g. GL_LINEAR
* \param f file to read PPM from
* \param width [out] width of texture
* \param height [out] height of texture
* \param maxval [out] maxval value from PPM file
* \return 0 on error, 1 otherwise
* \ingroup gltexture
*/
static int glCreatePPMTex(GL *gl, GLenum target, GLenum fmt, GLint filter,
FILE *f, int *width, int *height, int *maxval)
{
int w, h, m, bpp;
GLenum type;
uint8_t *data = read_pnm(f, &w, &h, &bpp, &m);
GLint hqtexfmt = detect_hqtexfmt(gl);
if (!data || (bpp != 3 && bpp != 6)) {
free(data);
return 0;
}
if (!fmt) {
fmt = bpp == 6 ? hqtexfmt : 3;
if (fmt == GL_FLOAT_RGB32_NV && target != GL_TEXTURE_RECTANGLE)
fmt = GL_RGB16;
}
type = bpp == 6 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE;
glCreateClearTex(gl, target, fmt, GL_RGB, type, filter, w, h, 0);
glUploadTex(gl, target, GL_RGB, type,
data, w * bpp, 0, 0, w, h, 0);
free(data);
if (width)
*width = w;
if (height)
*height = h;
if (maxval)
*maxval = m;
return 1;
}
/**
* \brief Setup ATI version of register combiners for YUV to RGB conversion.
* \param csp_params parameters used for colorspace conversion
* \param text if set use the GL_ATI_text_fragment_shader API as
* used on OS X.
*/
static void glSetupYUVFragmentATI(struct vo *vo, GL *gl,
struct mp_csp_params *csp_params, int text)
{
GLint i;
float yuv2rgb[3][4];
gl->GetIntegerv(GL_MAX_TEXTURE_UNITS, &i);
if (i < 3)
MP_ERR(vo, "3 texture units needed for YUV combiner (ATI) support (found %i)\n", i);
mp_get_yuv2rgb_coeffs(csp_params, yuv2rgb);
for (i = 0; i < 3; i++) {
int j;
yuv2rgb[i][3] -= -0.5 * (yuv2rgb[i][1] + yuv2rgb[i][2]);
for (j = 0; j < 4; j++) {
yuv2rgb[i][j] *= 0.125;
yuv2rgb[i][j] += 0.5;
if (yuv2rgb[i][j] > 1)
yuv2rgb[i][j] = 1;
if (yuv2rgb[i][j] < 0)
yuv2rgb[i][j] = 0;
}
}
if (text == 0) {
GLfloat c0[4] = { yuv2rgb[0][0], yuv2rgb[1][0], yuv2rgb[2][0] };
GLfloat c1[4] = { yuv2rgb[0][1], yuv2rgb[1][1], yuv2rgb[2][1] };
GLfloat c2[4] = { yuv2rgb[0][2], yuv2rgb[1][2], yuv2rgb[2][2] };
GLfloat c3[4] = { yuv2rgb[0][3], yuv2rgb[1][3], yuv2rgb[2][3] };
if (!gl->BeginFragmentShader || !gl->EndFragmentShader ||
!gl->SetFragmentShaderConstant || !gl->SampleMap ||
!gl->ColorFragmentOp2 || !gl->ColorFragmentOp3) {
MP_ERR(vo, "Combiner (ATI) functions missing!\n");
return;
}
gl->GetIntegerv(GL_NUM_FRAGMENT_REGISTERS_ATI, &i);
if (i < 3)
MP_ERR(vo, "3 registers needed for YUV combiner (ATI) support (found %i)\n", i);
gl->BeginFragmentShader();
gl->SetFragmentShaderConstant(GL_CON_0_ATI, c0);
gl->SetFragmentShaderConstant(GL_CON_1_ATI, c1);
gl->SetFragmentShaderConstant(GL_CON_2_ATI, c2);
gl->SetFragmentShaderConstant(GL_CON_3_ATI, c3);
gl->SampleMap(GL_REG_0_ATI, GL_TEXTURE0, GL_SWIZZLE_STR_ATI);
gl->SampleMap(GL_REG_1_ATI, GL_TEXTURE1, GL_SWIZZLE_STR_ATI);
gl->SampleMap(GL_REG_2_ATI, GL_TEXTURE2, GL_SWIZZLE_STR_ATI);
gl->ColorFragmentOp2(GL_MUL_ATI, GL_REG_1_ATI, GL_NONE, GL_NONE,
GL_REG_1_ATI, GL_NONE, GL_BIAS_BIT_ATI,
GL_CON_1_ATI, GL_NONE, GL_BIAS_BIT_ATI);
gl->ColorFragmentOp3(GL_MAD_ATI, GL_REG_2_ATI, GL_NONE, GL_NONE,
GL_REG_2_ATI, GL_NONE, GL_BIAS_BIT_ATI,
GL_CON_2_ATI, GL_NONE, GL_BIAS_BIT_ATI,
GL_REG_1_ATI, GL_NONE, GL_NONE);
gl->ColorFragmentOp3(GL_MAD_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_CON_0_ATI, GL_NONE, GL_BIAS_BIT_ATI,
GL_REG_2_ATI, GL_NONE, GL_NONE);
gl->ColorFragmentOp2(GL_ADD_ATI, GL_REG_0_ATI, GL_NONE, GL_8X_BIT_ATI,
GL_REG_0_ATI, GL_NONE, GL_NONE,
GL_CON_3_ATI, GL_NONE, GL_BIAS_BIT_ATI);
gl->EndFragmentShader();
} else {
static const char template[] =
"!!ATIfs1.0\n"
"StartConstants;\n"
" CONSTANT c0 = {%e, %e, %e};\n"
" CONSTANT c1 = {%e, %e, %e};\n"
" CONSTANT c2 = {%e, %e, %e};\n"
" CONSTANT c3 = {%e, %e, %e};\n"
"EndConstants;\n"
"StartOutputPass;\n"
" SampleMap r0, t0.str;\n"
" SampleMap r1, t1.str;\n"
" SampleMap r2, t2.str;\n"
" MUL r1.rgb, r1.bias, c1.bias;\n"
" MAD r2.rgb, r2.bias, c2.bias, r1;\n"
" MAD r0.rgb, r0, c0.bias, r2;\n"
" ADD r0.rgb.8x, r0, c3.bias;\n"
"EndPass;\n";
char buffer[512];
snprintf(buffer, sizeof(buffer), template,
yuv2rgb[0][0], yuv2rgb[1][0], yuv2rgb[2][0],
yuv2rgb[0][1], yuv2rgb[1][1], yuv2rgb[2][1],
yuv2rgb[0][2], yuv2rgb[1][2], yuv2rgb[2][2],
yuv2rgb[0][3], yuv2rgb[1][3], yuv2rgb[2][3]);
MP_DBG(vo, "generated fragment program:\n%s\n", buffer);
loadGPUProgram(vo, gl, GL_TEXT_FRAGMENT_SHADER_ATI, buffer);
}
}
// Replace all occurances of variables named "$"+name (e.g. $foo) in *text with
// replace, and return the result. *text must have been allocated with talloc.
static void replace_var_str(char **text, const char *name, const char *replace)
{
size_t namelen = strlen(name);
char *nextvar = *text;
void *parent = talloc_parent(*text);
for (;;) {
nextvar = strchr(nextvar, '$');
if (!nextvar)
break;
char *until = nextvar;
nextvar++;
if (strncmp(nextvar, name, namelen) != 0)
continue;
nextvar += namelen;
// try not to replace prefixes of other vars (e.g. $foo vs. $foo_bar)
char term = nextvar[0];
if (mp_isalnum(term) || term == '_')
continue;
int prelength = until - *text;
int postlength = nextvar - *text;
char *n = talloc_asprintf(parent, "%.*s%s%s", prelength, *text, replace,
nextvar);
talloc_free(*text);
*text = n;
nextvar = *text + postlength;
}
}
static void replace_var_float(char **text, const char *name, float replace)
{
char *s = talloc_asprintf(NULL, "%e", replace);
replace_var_str(text, name, s);
talloc_free(s);
}
static void replace_var_char(char **text, const char *name, char replace)
{
char s[2] = { replace, '\0' };
replace_var_str(text, name, s);
}
// Append template to *text. Possibly initialize *text if it's NULL.
static void append_template(char **text, const char* template)
{
if (!*text)
*text = talloc_strdup(NULL, template);
else
*text = talloc_strdup_append(*text, template);
}
/**
* \brief helper function for gen_spline_lookup_tex
* \param x subpixel-position ((0,1) range) to calculate weights for
* \param dst where to store transformed weights, must provide space for 4 GLfloats
*
* calculates the weights and stores them after appropriate transformation
* for the scaler fragment program.
*/
static void store_weights(float x, GLfloat *dst)
{
float w0 = (((-1 * x + 3) * x - 3) * x + 1) / 6;
float w1 = (((3 * x - 6) * x + 0) * x + 4) / 6;
float w2 = (((-3 * x + 3) * x + 3) * x + 1) / 6;
float w3 = (((1 * x + 0) * x + 0) * x + 0) / 6;
*dst++ = 1 + x - w1 / (w0 + w1);
*dst++ = 1 - x + w3 / (w2 + w3);
*dst++ = w0 + w1;
*dst++ = 0;
}
//! to avoid artefacts this should be rather large
#define LOOKUP_BSPLINE_RES (2 * 1024)
/**
* \brief creates the 1D lookup texture needed for fast higher-order filtering
* \param unit texture unit to attach texture to
*/
static void gen_spline_lookup_tex(GL *gl, GLenum unit)
{
GLfloat *tex = calloc(4 * LOOKUP_BSPLINE_RES, sizeof(*tex));
GLfloat *tp = tex;
int i;
for (i = 0; i < LOOKUP_BSPLINE_RES; i++) {
float x = (float)(i + 0.5) / LOOKUP_BSPLINE_RES;
store_weights(x, tp);
tp += 4;
}
store_weights(0, tex);
store_weights(1, &tex[4 * (LOOKUP_BSPLINE_RES - 1)]);
gl->ActiveTexture(unit);
gl->TexImage1D(GL_TEXTURE_1D, 0, GL_RGBA16, LOOKUP_BSPLINE_RES, 0, GL_RGBA,
GL_FLOAT, tex);
gl->TexParameterf(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, 1.0);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT);
gl->ActiveTexture(GL_TEXTURE0);
free(tex);
}
#define NOISE_RES 2048
/**
* \brief creates the 1D lookup texture needed to generate pseudo-random numbers.
* \param unit texture unit to attach texture to
*/
static void gen_noise_lookup_tex(GL *gl, GLenum unit) {
GLfloat *tex = calloc(NOISE_RES, sizeof(*tex));
uint32_t lcg = 0x79381c11;
int i;
for (i = 0; i < NOISE_RES; i++)
tex[i] = (double)i / (NOISE_RES - 1);
for (i = 0; i < NOISE_RES - 1; i++) {
int remain = NOISE_RES - i;
int idx = i + (lcg >> 16) % remain;
GLfloat tmp = tex[i];
tex[i] = tex[idx];
tex[idx] = tmp;
lcg = lcg * 1664525 + 1013904223;
}
gl->ActiveTexture(unit);
gl->TexImage1D(GL_TEXTURE_1D, 0, 1, NOISE_RES, 0, GL_RED, GL_FLOAT, tex);
gl->TexParameterf(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, 1.0);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
gl->TexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT);
gl->ActiveTexture(GL_TEXTURE0);
free(tex);
}
#define SAMPLE(dest, coord, texture) \
"TEX textemp, " coord ", " texture ", $tex_type;\n" \
"MOV " dest ", textemp.r;\n"
static const char bilin_filt_template[] =
SAMPLE("yuv.$out_comp","fragment.texcoord[$in_tex]","texture[$in_tex]");
#define BICUB_FILT_MAIN \
/* first y-interpolation */ \
"ADD coord, fragment.texcoord[$in_tex].xyxy, cdelta.xyxw;\n" \
"ADD coord2, fragment.texcoord[$in_tex].xyxy, cdelta.zyzw;\n" \
SAMPLE("a.r","coord.xyxy","texture[$in_tex]") \
SAMPLE("a.g","coord.zwzw","texture[$in_tex]") \
/* second y-interpolation */ \
SAMPLE("b.r","coord2.xyxy","texture[$in_tex]") \
SAMPLE("b.g","coord2.zwzw","texture[$in_tex]") \
"LRP a.b, parmy.b, a.rrrr, a.gggg;\n" \
"LRP a.a, parmy.b, b.rrrr, b.gggg;\n" \
/* x-interpolation */ \
"LRP yuv.$out_comp, parmx.b, a.bbbb, a.aaaa;\n"
static const char bicub_filt_template_2D[] =
"MAD coord.xy, fragment.texcoord[$in_tex], {$texw, $texh}, {0.5, 0.5};\n"
"TEX parmx, coord.x, texture[$texs], 1D;\n"
"MUL cdelta.xz, parmx.rrgg, {-$ptw, 0, $ptw, 0};\n"
"TEX parmy, coord.y, texture[$texs], 1D;\n"
"MUL cdelta.yw, parmy.rrgg, {0, -$pth, 0, $pth};\n"
BICUB_FILT_MAIN;
static const char bicub_filt_template_RECT[] =
"ADD coord, fragment.texcoord[$in_tex], {0.5, 0.5};\n"
"TEX parmx, coord.x, texture[$texs], 1D;\n"
"MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};\n"
"TEX parmy, coord.y, texture[$texs], 1D;\n"
"MUL cdelta.yw, parmy.rrgg, {0, -1, 0, 1};\n"
BICUB_FILT_MAIN;
#define CALCWEIGHTS(t, s) \
"MAD "t ", {-0.5, 0.1666, 0.3333, -0.3333}, "s ", {1, 0, -0.5, 0.5};\n" \
"MAD "t ", "t ", "s ", {0, 0, -0.5, 0.5};\n" \
"MAD "t ", "t ", "s ", {-0.6666, 0, 0.8333, 0.1666};\n" \
"RCP a.x, "t ".z;\n" \
"RCP a.y, "t ".w;\n" \
"MAD "t ".xy, "t ".xyxy, a.xyxy, {1, 1, 0, 0};\n" \
"ADD "t ".x, "t ".xxxx, "s ";\n" \
"SUB "t ".y, "t ".yyyy, "s ";\n"
static const char bicub_notex_filt_template_2D[] =
"MAD coord.xy, fragment.texcoord[$in_tex], {$texw, $texh}, {0.5, 0.5};\n"
"FRC coord.xy, coord.xyxy;\n"
CALCWEIGHTS("parmx", "coord.xxxx")
"MUL cdelta.xz, parmx.rrgg, {-$ptw, 0, $ptw, 0};\n"
CALCWEIGHTS("parmy", "coord.yyyy")
"MUL cdelta.yw, parmy.rrgg, {0, -$pth, 0, $pth};\n"
BICUB_FILT_MAIN;
static const char bicub_notex_filt_template_RECT[] =
"ADD coord, fragment.texcoord[$in_tex], {0.5, 0.5};\n"
"FRC coord.xy, coord.xyxy;\n"
CALCWEIGHTS("parmx", "coord.xxxx")
"MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};\n"
CALCWEIGHTS("parmy", "coord.yyyy")
"MUL cdelta.yw, parmy.rrgg, {0, -1, 0, 1};\n"
BICUB_FILT_MAIN;
#define BICUB_X_FILT_MAIN \
"ADD coord.xy, fragment.texcoord[$in_tex].xyxy, cdelta.xyxy;\n" \
"ADD coord2.xy, fragment.texcoord[$in_tex].xyxy, cdelta.zyzy;\n" \
SAMPLE("a.r","coord","texture[$in_tex]") \
SAMPLE("b.r","coord2","texture[$in_tex]") \
/* x-interpolation */ \
"LRP yuv.$out_comp, parmx.b, a.rrrr, b.rrrr;\n"
static const char bicub_x_filt_template_2D[] =
"MAD coord.x, fragment.texcoord[$in_tex], {$texw}, {0.5};\n"
"TEX parmx, coord, texture[$texs], 1D;\n"
"MUL cdelta.xyz, parmx.rrgg, {-$ptw, 0, $ptw};\n"
BICUB_X_FILT_MAIN;
static const char bicub_x_filt_template_RECT[] =
"ADD coord.x, fragment.texcoord[$in_tex], {0.5};\n"
"TEX parmx, coord, texture[$texs], 1D;\n"
"MUL cdelta.xyz, parmx.rrgg, {-1, 0, 1};\n"
BICUB_X_FILT_MAIN;
static const char unsharp_filt_template[] =
"PARAM dcoord$out_comp = {$ptw_05, $pth_05, $ptw_05, -$pth_05};\n"
"ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
"SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
SAMPLE("a.r","fragment.texcoord[$in_tex]","texture[$in_tex]")
SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
"ADD b.r, b.r, b.g;\n"
SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
"DP3 b, b, {0.25, 0.25, 0.25};\n"
"SUB b.r, a.r, b.r;\n"
"MAD textemp.r, b.r, {$strength}, a.r;\n"
"MOV yuv.$out_comp, textemp.r;\n";
static const char unsharp_filt_template2[] =
"PARAM dcoord$out_comp = {$ptw_12, $pth_12, $ptw_12, -$pth_12};\n"
"PARAM dcoord2$out_comp = {$ptw_15, 0, 0, $pth_15};\n"
"ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
"SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord$out_comp;\n"
SAMPLE("a.r","fragment.texcoord[$in_tex]","texture[$in_tex]")
SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
"ADD b.r, b.r, b.g;\n"
SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
"ADD b.r, b.r, b.b;\n"
"ADD b.a, b.r, b.g;\n"
"ADD coord, fragment.texcoord[$in_tex].xyxy, dcoord2$out_comp;\n"
"SUB coord2, fragment.texcoord[$in_tex].xyxy, dcoord2$out_comp;\n"
SAMPLE("b.r","coord.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord.zwzw","texture[$in_tex]")
"ADD b.r, b.r, b.g;\n"
SAMPLE("b.b","coord2.xyxy","texture[$in_tex]")
SAMPLE("b.g","coord2.zwzw","texture[$in_tex]")
"DP4 b.r, b, {-0.1171875, -0.1171875, -0.1171875, -0.09765625};\n"
"MAD b.r, a.r, {0.859375}, b.r;\n"
"MAD textemp.r, b.r, {$strength}, a.r;\n"
"MOV yuv.$out_comp, textemp.r;\n";
static const char yuv_prog_template[] =
"PARAM ycoef = {$cm11, $cm21, $cm31};\n"
"PARAM ucoef = {$cm12, $cm22, $cm32};\n"
"PARAM vcoef = {$cm13, $cm23, $cm33};\n"
"PARAM offsets = {$cm14, $cm24, $cm34};\n"
"TEMP res;\n"
"MAD res.rgb, yuv.rrrr, ycoef, offsets;\n"
"MAD res.rgb, yuv.gggg, ucoef, res;\n"
"MAD res.rgb, yuv.bbbb, vcoef, res;\n";
static const char yuv_pow_prog_template[] =
"PARAM ycoef = {$cm11, $cm21, $cm31};\n"
"PARAM ucoef = {$cm12, $cm22, $cm32};\n"
"PARAM vcoef = {$cm13, $cm23, $cm33};\n"
"PARAM offsets = {$cm14, $cm24, $cm34};\n"
"PARAM gamma = {$gamma_r, $gamma_g, $gamma_b};\n"
"TEMP res;\n"
"MAD res.rgb, yuv.rrrr, ycoef, offsets;\n"
"MAD res.rgb, yuv.gggg, ucoef, res;\n"
"MAD_SAT res.rgb, yuv.bbbb, vcoef, res;\n"
"POW res.r, res.r, gamma.r;\n"
"POW res.g, res.g, gamma.g;\n"
"POW res.b, res.b, gamma.b;\n";
static const char yuv_lookup_prog_template[] =
"PARAM ycoef = {$cm11, $cm21, $cm31, 0};\n"
"PARAM ucoef = {$cm12, $cm22, $cm32, 0};\n"
"PARAM vcoef = {$cm13, $cm23, $cm33, 0};\n"
"PARAM offsets = {$cm14, $cm24, $cm34, 0.125};\n"
"TEMP res;\n"
"MAD res, yuv.rrrr, ycoef, offsets;\n"
"MAD res.rgb, yuv.gggg, ucoef, res;\n"
"MAD res.rgb, yuv.bbbb, vcoef, res;\n"
"TEX res.r, res.raaa, texture[$conv_tex0], 2D;\n"
"ADD res.a, res.a, 0.25;\n"
"TEX res.g, res.gaaa, texture[$conv_tex0], 2D;\n"
"ADD res.a, res.a, 0.25;\n"
"TEX res.b, res.baaa, texture[$conv_tex0], 2D;\n";
static const char yuv_lookup3d_prog_template[] =
"TEMP res;\n"
"TEX res, yuv, texture[$conv_tex0], 3D;\n";
static const char noise_filt_template[] =
"MUL coord.xy, fragment.texcoord[0], {$noise_sx, $noise_sy};\n"
"TEMP rand;\n"
"TEX rand.r, coord.x, texture[$noise_filt_tex], 1D;\n"
"ADD rand.r, rand.r, coord.y;\n"
"TEX rand.r, rand.r, texture[$noise_filt_tex], 1D;\n"
"MAD res.rgb, rand.rrrr, {$noise_str, $noise_str, $noise_str}, res;\n";
/**
* \brief creates and initializes helper textures needed for scaling texture read
* \param scaler scaler type to create texture for
* \param texu contains next free texture unit number
* \param texs texture unit ids for the scaler are stored in this array
*/
static void create_scaler_textures(struct vo *vo, GL *gl, int scaler, int *texu,
char *texs)
{
switch (scaler) {
case YUV_SCALER_BILIN:
case YUV_SCALER_BICUB_NOTEX:
case YUV_SCALER_UNSHARP:
case YUV_SCALER_UNSHARP2:
break;
case YUV_SCALER_BICUB:
case YUV_SCALER_BICUB_X:
texs[0] = (*texu)++;
gen_spline_lookup_tex(gl, GL_TEXTURE0 + texs[0]);
texs[0] += '0';
break;
default:
MP_ERR(vo, "unknown scaler type %i\n", scaler);
}
}
//! resolution of texture for gamma lookup table
#define LOOKUP_RES 512
//! resolution for 3D yuv->rgb conversion lookup table
#define LOOKUP_3DRES 32
/**
* \brief creates and initializes helper textures needed for yuv conversion
* \param params struct containing parameters like brightness, gamma, ...
* \param texu contains next free texture unit number
* \param texs texture unit ids for the conversion are stored in this array
*/
static void create_conv_textures(struct vo *vo, GL *gl,
gl_conversion_params_t *params,
int *texu, char *texs)
{
unsigned char *lookup_data = NULL;
int conv = YUV_CONVERSION(params->type);
switch (conv) {
case YUV_CONVERSION_FRAGMENT:
case YUV_CONVERSION_FRAGMENT_POW:
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP:
texs[0] = (*texu)++;
gl->ActiveTexture(GL_TEXTURE0 + texs[0]);
lookup_data = malloc(4 * LOOKUP_RES);
mp_gen_gamma_map(lookup_data, LOOKUP_RES, params->csp_params.rgamma);
mp_gen_gamma_map(&lookup_data[LOOKUP_RES], LOOKUP_RES,
params->csp_params.ggamma);
mp_gen_gamma_map(&lookup_data[2 * LOOKUP_RES], LOOKUP_RES,
params->csp_params.bgamma);
glCreateClearTex(gl, GL_TEXTURE_2D, GL_LUMINANCE8, GL_LUMINANCE,
GL_UNSIGNED_BYTE, GL_LINEAR, LOOKUP_RES, 4, 0);
glUploadTex(gl, GL_TEXTURE_2D, GL_LUMINANCE, GL_UNSIGNED_BYTE,
lookup_data, LOOKUP_RES, 0, 0, LOOKUP_RES, 4, 0);
gl->ActiveTexture(GL_TEXTURE0);
texs[0] += '0';
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
{
int sz = LOOKUP_3DRES + 2; // texture size including borders
if (!gl->TexImage3D) {
MP_ERR(vo, "Missing 3D texture function!\n");
break;
}
texs[0] = (*texu)++;
gl->ActiveTexture(GL_TEXTURE0 + texs[0]);
lookup_data = malloc(3 * sz * sz * sz);
mp_gen_yuv2rgb_map(&params->csp_params, lookup_data, LOOKUP_3DRES);
glAdjustAlignment(gl, sz);
gl->PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
gl->TexImage3D(GL_TEXTURE_3D, 0, 3, sz, sz, sz, 1,
GL_RGB, GL_UNSIGNED_BYTE, lookup_data);
gl->TexParameterf(GL_TEXTURE_3D, GL_TEXTURE_PRIORITY, 1.0);
gl->TexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP);
gl->TexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP);
gl->TexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP);
gl->ActiveTexture(GL_TEXTURE0);
texs[0] += '0';
}
break;
default:
MP_ERR(vo, "unknown conversion type %i\n", conv);
}
free(lookup_data);
}
/**
* \brief adds a scaling texture read at the current fragment program position
* \param scaler type of scaler to insert
* \param prog pointer to fragment program so far
* \param texs array containing the texture unit identifiers for this scaler
* \param in_tex texture unit the scaler should read from
* \param out_comp component of the yuv variable the scaler stores the result in
* \param rect if rectangular (pixel) adressing should be used for in_tex
* \param texw width of the in_tex texture
* \param texh height of the in_tex texture
* \param strength strength of filter effect if the scaler does some kind of filtering
*/
static void add_scaler(int scaler, char **prog, char *texs,
char in_tex, char out_comp, int rect, int texw, int texh,
double strength)
{
const char *ttype = rect ? "RECT" : "2D";
const float ptw = rect ? 1.0 : 1.0 / texw;
const float pth = rect ? 1.0 : 1.0 / texh;
switch (scaler) {
case YUV_SCALER_BILIN:
append_template(prog, bilin_filt_template);
break;
case YUV_SCALER_BICUB:
if (rect)
append_template(prog, bicub_filt_template_RECT);
else
append_template(prog, bicub_filt_template_2D);
break;
case YUV_SCALER_BICUB_X:
if (rect)
append_template(prog, bicub_x_filt_template_RECT);
else
append_template(prog, bicub_x_filt_template_2D);
break;
case YUV_SCALER_BICUB_NOTEX:
if (rect)
append_template(prog, bicub_notex_filt_template_RECT);
else
append_template(prog, bicub_notex_filt_template_2D);
break;
case YUV_SCALER_UNSHARP:
append_template(prog, unsharp_filt_template);
break;
case YUV_SCALER_UNSHARP2:
append_template(prog, unsharp_filt_template2);
break;
}
replace_var_char(prog, "texs", texs[0]);
replace_var_char(prog, "in_tex", in_tex);
replace_var_char(prog, "out_comp", out_comp);
replace_var_str(prog, "tex_type", ttype);
replace_var_float(prog, "texw", texw);
replace_var_float(prog, "texh", texh);
replace_var_float(prog, "ptw", ptw);
replace_var_float(prog, "pth", pth);
// this is silly, not sure if that couldn't be in the shader source instead
replace_var_float(prog, "ptw_05", ptw * 0.5);
replace_var_float(prog, "pth_05", pth * 0.5);
replace_var_float(prog, "ptw_15", ptw * 1.5);
replace_var_float(prog, "pth_15", pth * 1.5);
replace_var_float(prog, "ptw_12", ptw * 1.2);
replace_var_float(prog, "pth_12", pth * 1.2);
replace_var_float(prog, "strength", strength);
}
static const struct {
const char *name;
GLenum cur;
GLenum max;
} progstats[] = {
{"instructions", 0x88A0, 0x88A1},
{"native instructions", 0x88A2, 0x88A3},
{"temporaries", 0x88A4, 0x88A5},
{"native temporaries", 0x88A6, 0x88A7},
{"parameters", 0x88A8, 0x88A9},
{"native parameters", 0x88AA, 0x88AB},
{"attribs", 0x88AC, 0x88AD},
{"native attribs", 0x88AE, 0x88AF},
{"ALU instructions", 0x8805, 0x880B},
{"TEX instructions", 0x8806, 0x880C},
{"TEX indirections", 0x8807, 0x880D},
{"native ALU instructions", 0x8808, 0x880E},
{"native TEX instructions", 0x8809, 0x880F},
{"native TEX indirections", 0x880A, 0x8810},
{NULL, 0, 0}
};
/**
* \brief load the specified GPU Program
* \param target program target to load into, only GL_FRAGMENT_PROGRAM is tested
* \param prog program string
* \return 1 on success, 0 otherwise
*/
static int loadGPUProgram(struct vo *vo, GL *gl, GLenum target, char *prog)
{
int i;
GLint cur = 0, max = 0, err = 0;
if (!gl->ProgramString) {
MP_ERR(vo, "Missing GPU program function\n");
return 0;
}
gl->ProgramString(target, GL_PROGRAM_FORMAT_ASCII, strlen(prog), prog);
gl->GetIntegerv(GL_PROGRAM_ERROR_POSITION, &err);
if (err != -1) {
MP_ERR(vo,
"Error compiling fragment program, make sure your card supports\n"
" GL_ARB_fragment_program (use glxinfo to check).\n"
" Error message:\n %s at %.10s\n",
gl->GetString(GL_PROGRAM_ERROR_STRING), &prog[err]);
return 0;
}
if (!gl->GetProgramivARB)
return 1;
MP_VERBOSE(vo, "Program statistics:\n");
for (i = 0; progstats[i].name; i++) {
gl->GetProgramivARB(target, progstats[i].cur, &cur);
gl->GetProgramivARB(target, progstats[i].max, &max);
MP_VERBOSE(vo, " %s: %i/%i\n", progstats[i].name, cur, max);
}
return 1;
}
#define MAX_PROGSZ (1024 * 1024)
/**
* \brief setup a fragment program that will do YUV->RGB conversion
* \param parms struct containing parameters like conversion and scaler type,
* brightness, ...
*/
static void glSetupYUVFragprog(struct vo *vo, GL *gl,
gl_conversion_params_t *params)
{
int type = params->type;
int texw = params->texw;
int texh = params->texh;
int rect = params->target == GL_TEXTURE_RECTANGLE;
static const char prog_hdr[] =
"!!ARBfp1.0\n"
"OPTION ARB_precision_hint_fastest;\n"
// all scaler variables must go here so they aren't defined
// multiple times when the same scaler is used more than once
"TEMP coord, coord2, cdelta, parmx, parmy, a, b, yuv, textemp;\n";
char *yuv_prog = NULL;
char **prog = &yuv_prog;
int cur_texu = 3;
char lum_scale_texs[1] = {0};
char chrom_scale_texs[1] = {0};
char conv_texs[1];
char filt_texs[1] = {0};
GLint i;
// this is the conversion matrix, with y, u, v factors
// for red, green, blue and the constant offsets
float yuv2rgb[3][4];
int noise = params->noise_strength != 0;
create_conv_textures(vo, gl, params, &cur_texu, conv_texs);
create_scaler_textures(vo, gl, YUV_LUM_SCALER(type), &cur_texu, lum_scale_texs);
if (YUV_CHROM_SCALER(type) == YUV_LUM_SCALER(type))
memcpy(chrom_scale_texs, lum_scale_texs, sizeof(chrom_scale_texs));
else
create_scaler_textures(vo, gl, YUV_CHROM_SCALER(type), &cur_texu,
chrom_scale_texs);
if (noise) {
gen_noise_lookup_tex(gl, cur_texu);
filt_texs[0] = '0' + cur_texu++;
}
gl->GetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &i);
if (i < cur_texu)
MP_ERR(vo, "%i texture units needed for this type of YUV fragment support (found %i)\n",
cur_texu, i);
if (!gl->ProgramString) {
MP_FATAL(vo, "ProgramString function missing!\n");
return;
}
append_template(prog, prog_hdr);
add_scaler(YUV_LUM_SCALER(type), prog, lum_scale_texs,
'0', 'r', rect, texw, texh, params->filter_strength);
add_scaler(YUV_CHROM_SCALER(type), prog,
chrom_scale_texs, '1', 'g', rect, params->chrom_texw,
params->chrom_texh, params->filter_strength);
add_scaler(YUV_CHROM_SCALER(type), prog,
chrom_scale_texs, '2', 'b', rect, params->chrom_texw,
params->chrom_texh, params->filter_strength);
mp_get_yuv2rgb_coeffs(&params->csp_params, yuv2rgb);
switch (YUV_CONVERSION(type)) {
case YUV_CONVERSION_FRAGMENT:
append_template(prog, yuv_prog_template);
break;
case YUV_CONVERSION_FRAGMENT_POW:
append_template(prog, yuv_pow_prog_template);
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP:
append_template(prog, yuv_lookup_prog_template);
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
append_template(prog, yuv_lookup3d_prog_template);
break;
default:
MP_ERR(vo, "unknown conversion type %i\n", YUV_CONVERSION(type));
break;
}
for (int r = 0; r < 3; r++) {
for (int c = 0; c < 4; c++) {
// "cmRC"
char var[] = { 'c', 'm', '1' + r, '1' + c, '\0' };
replace_var_float(prog, var, yuv2rgb[r][c]);
}
}
replace_var_float(prog, "gamma_r", (float)1.0 / params->csp_params.rgamma);
replace_var_float(prog, "gamma_g", (float)1.0 / params->csp_params.ggamma);
replace_var_float(prog, "gamma_b", (float)1.0 / params->csp_params.bgamma);
replace_var_char(prog, "conv_tex0", conv_texs[0]);
if (noise) {
// 1.0 strength is suitable for dithering 8 to 6 bit
double str = params->noise_strength * (1.0 / 64);
double scale_x = (double)NOISE_RES / texw;
double scale_y = (double)NOISE_RES / texh;
if (rect) {
scale_x /= texw;
scale_y /= texh;
}
append_template(prog, noise_filt_template);
replace_var_float(prog, "noise_sx", scale_x);
replace_var_float(prog, "noise_sy", scale_y);
replace_var_char(prog, "noise_filt_tex", filt_texs[0]);
replace_var_float(prog, "noise_str", str);
}
append_template(prog, "MOV result.color.rgb, res;\nEND");
MP_DBG(vo, "generated fragment program:\n%s\n", yuv_prog);
loadGPUProgram(vo, gl, GL_FRAGMENT_PROGRAM, yuv_prog);
talloc_free(yuv_prog);
}
/**
* \brief detect the best YUV->RGB conversion method available
*/
static int glAutodetectYUVConversion(GL *gl)
{
const char *extensions = gl->GetString(GL_EXTENSIONS);
if (!extensions || !gl->MultiTexCoord2f)
return YUV_CONVERSION_NONE;
if (strstr(extensions, "GL_ARB_fragment_program"))
return YUV_CONVERSION_FRAGMENT;
if (strstr(extensions, "GL_ATI_text_fragment_shader"))
return YUV_CONVERSION_TEXT_FRAGMENT;
if (strstr(extensions, "GL_ATI_fragment_shader"))
return YUV_CONVERSION_COMBINERS_ATI;
return YUV_CONVERSION_NONE;
}
/**
* \brief setup YUV->RGB conversion
* \param parms struct containing parameters like conversion and scaler type,
* brightness, ...
* \ingroup glconversion
*/
static void glSetupYUVConversion(struct vo *vo, GL *gl,
gl_conversion_params_t *params)
{
if (params->chrom_texw == 0)
params->chrom_texw = 1;
if (params->chrom_texh == 0)
params->chrom_texh = 1;
switch (YUV_CONVERSION(params->type)) {
case YUV_CONVERSION_COMBINERS_ATI:
glSetupYUVFragmentATI(vo, gl, &params->csp_params, 0);
break;
case YUV_CONVERSION_TEXT_FRAGMENT:
glSetupYUVFragmentATI(vo, gl, &params->csp_params, 1);
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP:
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
case YUV_CONVERSION_FRAGMENT:
case YUV_CONVERSION_FRAGMENT_POW:
glSetupYUVFragprog(vo, gl, params);
break;
case YUV_CONVERSION_NONE:
break;
default:
MP_ERR(vo, "unknown conversion type %i\n", YUV_CONVERSION(params->type));
}
}
/**
* \brief enable the specified YUV conversion
* \param target texture target for Y, U and V textures (e.g. GL_TEXTURE_2D)
* \param type type of YUV conversion
* \ingroup glconversion
*/
static void glEnableYUVConversion(GL *gl, GLenum target, int type)
{
switch (YUV_CONVERSION(type)) {
case YUV_CONVERSION_COMBINERS_ATI:
gl->ActiveTexture(GL_TEXTURE1);
gl->Enable(target);
gl->ActiveTexture(GL_TEXTURE2);
gl->Enable(target);
gl->ActiveTexture(GL_TEXTURE0);
gl->Enable(GL_FRAGMENT_SHADER_ATI);
break;
case YUV_CONVERSION_TEXT_FRAGMENT:
gl->ActiveTexture(GL_TEXTURE1);
gl->Enable(target);
gl->ActiveTexture(GL_TEXTURE2);
gl->Enable(target);
gl->ActiveTexture(GL_TEXTURE0);
gl->Enable(GL_TEXT_FRAGMENT_SHADER_ATI);
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
case YUV_CONVERSION_FRAGMENT_LOOKUP:
case YUV_CONVERSION_FRAGMENT_POW:
case YUV_CONVERSION_FRAGMENT:
case YUV_CONVERSION_NONE:
gl->Enable(GL_FRAGMENT_PROGRAM);
break;
}
}
/**
* \brief disable the specified YUV conversion
* \param target texture target for Y, U and V textures (e.g. GL_TEXTURE_2D)
* \param type type of YUV conversion
* \ingroup glconversion
*/
static void glDisableYUVConversion(GL *gl, GLenum target, int type)
{
switch (YUV_CONVERSION(type)) {
case YUV_CONVERSION_COMBINERS_ATI:
gl->ActiveTexture(GL_TEXTURE1);
gl->Disable(target);
gl->ActiveTexture(GL_TEXTURE2);
gl->Disable(target);
gl->ActiveTexture(GL_TEXTURE0);
gl->Disable(GL_FRAGMENT_SHADER_ATI);
break;
case YUV_CONVERSION_TEXT_FRAGMENT:
gl->Disable(GL_TEXT_FRAGMENT_SHADER_ATI);
// HACK: at least the Mac OS X 10.5 PPC Radeon drivers are broken and
// without this disable the texture units while the program is still
// running (10.4 PPC seems to work without this though).
gl->Flush();
gl->ActiveTexture(GL_TEXTURE1);
gl->Disable(target);
gl->ActiveTexture(GL_TEXTURE2);
gl->Disable(target);
gl->ActiveTexture(GL_TEXTURE0);
break;
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
case YUV_CONVERSION_FRAGMENT_LOOKUP:
case YUV_CONVERSION_FRAGMENT_POW:
case YUV_CONVERSION_FRAGMENT:
case YUV_CONVERSION_NONE:
gl->Disable(GL_FRAGMENT_PROGRAM);
break;
}
}
/**
* \brief draw a texture part at given 2D coordinates
* \param x screen top coordinate
* \param y screen left coordinate
* \param w screen width coordinate
* \param h screen height coordinate
* \param tx texture top coordinate in pixels
* \param ty texture left coordinate in pixels
* \param tw texture part width in pixels
* \param th texture part height in pixels
* \param sx width of texture in pixels
* \param sy height of texture in pixels
* \param rect_tex whether this texture uses texture_rectangle extension
* \param is_yv12 if != 0, also draw the textures from units 1 and 2,
* bits 8 - 15 and 16 - 23 specify the x and y scaling of those textures
* \param flip flip the texture upside down
* \ingroup gltexture
*/
static void glDrawTex(GL *gl, GLfloat x, GLfloat y, GLfloat w, GLfloat h,
GLfloat tx, GLfloat ty, GLfloat tw, GLfloat th,
int sx, int sy, int rect_tex, int is_yv12, int flip)
{
int chroma_x_shift = (is_yv12 >> 8) & 31;
int chroma_y_shift = (is_yv12 >> 16) & 31;
GLfloat xscale = 1 << chroma_x_shift;
GLfloat yscale = 1 << chroma_y_shift;
GLfloat tx2 = tx / xscale, ty2 = ty / yscale, tw2 = tw / xscale, th2 = th / yscale;
if (!rect_tex) {
tx /= sx;
ty /= sy;
tw /= sx;
th /= sy;
tx2 = tx, ty2 = ty, tw2 = tw, th2 = th;
}
if (flip) {
y += h;
h = -h;
}
gl->Begin(GL_QUADS);
gl->TexCoord2f(tx, ty);
if (is_yv12) {
gl->MultiTexCoord2f(GL_TEXTURE1, tx2, ty2);
gl->MultiTexCoord2f(GL_TEXTURE2, tx2, ty2);
}
gl->Vertex2f(x, y);
gl->TexCoord2f(tx, ty + th);
if (is_yv12) {
gl->MultiTexCoord2f(GL_TEXTURE1, tx2, ty2 + th2);
gl->MultiTexCoord2f(GL_TEXTURE2, tx2, ty2 + th2);
}
gl->Vertex2f(x, y + h);
gl->TexCoord2f(tx + tw, ty + th);
if (is_yv12) {
gl->MultiTexCoord2f(GL_TEXTURE1, tx2 + tw2, ty2 + th2);
gl->MultiTexCoord2f(GL_TEXTURE2, tx2 + tw2, ty2 + th2);
}
gl->Vertex2f(x + w, y + h);
gl->TexCoord2f(tx + tw, ty);
if (is_yv12) {
gl->MultiTexCoord2f(GL_TEXTURE1, tx2 + tw2, ty2);
gl->MultiTexCoord2f(GL_TEXTURE2, tx2 + tw2, ty2);
}
gl->Vertex2f(x + w, y);
gl->End();
}
static void resize(struct vo *vo, int x, int y)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
MP_VERBOSE(vo, "Resize: %dx%d\n", x, y);
gl->Viewport(0, 0, x, y);
vo_get_src_dst_rects(vo, &p->src_rect, &p->dst_rect, &p->osd_res);
gl->MatrixMode(GL_MODELVIEW);
gl->LoadIdentity();
gl->Ortho(0, vo->dwidth, vo->dheight, 0, -1, 1);
gl->Clear(GL_COLOR_BUFFER_BIT);
vo->want_redraw = true;
}
static void texSize(struct vo *vo, int w, int h, int *texw, int *texh)
{
struct gl_priv *p = vo->priv;
if (p->use_rectangle) {
*texw = w;
*texh = h;
} else {
*texw = 32;
while (*texw < w)
*texw *= 2;
*texh = 32;
while (*texh < h)
*texh *= 2;
}
if (p->ati_hack)
*texw = (*texw + 511) & ~511;
}
//! maximum size of custom fragment program
#define MAX_CUSTOM_PROG_SIZE (1024 * 1024)
static void update_yuvconv(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (!vo->params)
return;
struct mp_csp_params cparams = { .colorspace = MP_CSP_DETAILS_DEFAULTS };
cparams.colorspace.format = vo->params->colorspace;
cparams.colorspace.levels_in = vo->params->colorlevels;
cparams.colorspace.levels_out = vo->params->outputlevels;
mp_csp_copy_equalizer_values(&cparams, &p->video_eq);
gl_conversion_params_t params = {
p->target, p->yuvconvtype, cparams,
p->texture_width, p->texture_height, 0, 0, p->filter_strength,
p->noise_strength
};
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(p->image_format);
int depth = desc.plane_bits;
params.chrom_texw = params.texw >> desc.chroma_xs;
params.chrom_texh = params.texh >> desc.chroma_ys;
params.csp_params.input_bits = depth;
params.csp_params.texture_bits = depth+7 & ~7;
glSetupYUVConversion(vo, gl, &params);
if (p->custom_prog) {
FILE *f = fopen(p->custom_prog, "rb");
if (!f) {
MP_WARN(vo, "Could not read customprog %s\n", p->custom_prog);
} else {
char *prog = calloc(1, MAX_CUSTOM_PROG_SIZE + 1);
fread(prog, 1, MAX_CUSTOM_PROG_SIZE, f);
fclose(f);
loadGPUProgram(vo, gl, GL_FRAGMENT_PROGRAM, prog);
free(prog);
}
gl->ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 0,
1.0 / p->texture_width,
1.0 / p->texture_height,
p->texture_width, p->texture_height);
}
if (p->custom_tex) {
FILE *f = fopen(p->custom_tex, "rb");
if (!f) {
MP_WARN(vo, "Could not read customtex %s\n", p->custom_tex);
} else {
int width, height, maxval;
gl->ActiveTexture(GL_TEXTURE3);
if (glCreatePPMTex(gl, p->custom_trect ? GL_TEXTURE_RECTANGLE : GL_TEXTURE_2D,
0, p->custom_tlin ? GL_LINEAR : GL_NEAREST,
f, &width, &height, &maxval)) {
gl->ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 1,
1.0 / width, 1.0 / height,
width, height);
} else
MP_WARN(vo, "Error parsing customtex %s\n", p->custom_tex);
fclose(f);
gl->ActiveTexture(GL_TEXTURE0);
}
}
}
static void draw_osd(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (!p->osd)
return;
struct mp_osd_res res = p->osd_res;
if (p->scaled_osd) {
res = osd_res_from_image_params(vo->params);
gl->MatrixMode(GL_MODELVIEW);
gl->PushMatrix();
// Setup image space -> screen space (assumes osd_res in screen space)
int w = vo->dwidth - (p->osd_res.mr + p->osd_res.ml);
int h = vo->dheight - (p->osd_res.mt + p->osd_res.mb);
gl->Translated(p->osd_res.mr, p->osd_res.mt, 0);
gl->Scaled(1.0 / res.w * w, 1.0 / res.h * h, 1);
}
gl->Color4ub((p->osd_color >> 16) & 0xff, (p->osd_color >> 8) & 0xff,
p->osd_color & 0xff, 0xff - (p->osd_color >> 24));
mpgl_osd_draw_legacy(p->osd, p->osd_pts, res);
if (p->scaled_osd)
gl->PopMatrix();
}
/**
* \brief uninitialize OpenGL context, freeing textures, buffers etc.
*/
static void uninitGl(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (!gl)
return;
int i = 0;
if (gl->DeletePrograms && p->fragprog)
gl->DeletePrograms(1, &p->fragprog);
p->fragprog = 0;
while (p->default_texs[i] != 0)
i++;
if (i)
gl->DeleteTextures(i, p->default_texs);
p->default_texs[0] = 0;
if (p->osd)
mpgl_osd_destroy(p->osd);
p->osd = NULL;
p->buffer = 0;
p->buffersize = 0;
p->bufferptr = NULL;
if (gl->DeleteBuffers && p->buffer_uv[0])
gl->DeleteBuffers(2, p->buffer_uv);
p->buffer_uv[0] = p->buffer_uv[1] = 0;
p->buffersize_uv = 0;
p->bufferptr_uv[0] = p->bufferptr_uv[1] = 0;
p->err_shown = 0;
}
static void autodetectGlExtensions(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
const char *extensions = gl->GetString(GL_EXTENSIONS);
const char *vendor = gl->GetString(GL_VENDOR);
const char *version = gl->GetString(GL_VERSION);
const char *renderer = gl->GetString(GL_RENDERER);
int is_ati = vendor && strstr(vendor, "ATI") != NULL;
int ati_broken_pbo = 0;
MP_VERBOSE(vo, "Running on OpenGL '%s' by '%s', version '%s'\n",
renderer, vendor, version);
if (is_ati && strncmp(version, "2.1.", 4) == 0) {
int ver = atoi(version + 4);
MP_VERBOSE(vo, "Detected ATI driver version: %i\n", ver);
ati_broken_pbo = ver && ver < 8395;
}
if (p->ati_hack == -1)
p->ati_hack = ati_broken_pbo;
if (p->force_pbo == -1) {
p->force_pbo = 0;
if (extensions && strstr(extensions, "_pixel_buffer_object"))
p->force_pbo = is_ati;
}
p->have_texture_rg = extensions && strstr(extensions, "GL_ARB_texture_rg");
if (p->use_rectangle == -1) {
p->use_rectangle = 0;
if (extensions) {
// if (strstr(extensions, "_texture_non_power_of_two"))
if (strstr(extensions, "_texture_rectangle"))
p->use_rectangle = renderer
&& strstr(renderer, "Mesa DRI R200") ? 1 : 0;
}
}
if (p->use_yuv == -1)
p->use_yuv = glAutodetectYUVConversion(gl);
int eq_caps = 0;
int yuv_mask = (1 << p->use_yuv);
if (!(yuv_mask & MASK_NOT_COMBINERS)) {
// combiners
eq_caps = (1 << MP_CSP_EQ_HUE) | (1 << MP_CSP_EQ_SATURATION);
} else if (yuv_mask & MASK_ALL_YUV) {
eq_caps = MP_CSP_EQ_CAPS_COLORMATRIX;
if (yuv_mask & MASK_GAMMA_SUPPORT)
eq_caps |= MP_CSP_EQ_CAPS_GAMMA;
}
p->video_eq.capabilities = eq_caps;
{
int target = p->use_rectangle == 1 ? GL_TEXTURE_RECTANGLE : GL_TEXTURE_2D;
GLint gl_texfmt;
GLenum gl_format, gl_type;
glFindFormat(IMGFMT_420P16, p->have_texture_rg, NULL, &gl_texfmt,
&gl_format, &gl_type);
glCreateClearTex(gl, target, gl_texfmt, gl_format, gl_type,
GL_LINEAR, 64, 64, 0);
int tex_size_token = p->have_texture_rg ? GL_TEXTURE_RED_SIZE
: GL_TEXTURE_INTENSITY_SIZE;
GLint size = 8;
gl->GetTexLevelParameteriv(target, 0, tex_size_token, &size);
MP_VERBOSE(vo, "16 bit texture depth: %d.\n", size);
p->max_tex_component_size = size;
}
if (is_ati && (p->lscale == 1 || p->lscale == 2 || p->cscale == 1 || p->cscale == 2))
MP_WARN(vo, "Selected scaling mode may be broken on"
" ATI cards.\nTell _them_ to fix GL_REPEAT if you have issues.\n");
MP_VERBOSE(vo, "Settings after autodetection: ati-hack = %i, "
"force-pbo = %i, rectangle = %i, yuv = %i\n",
p->ati_hack, p->force_pbo, p->use_rectangle, p->use_yuv);
}
static GLint get_scale_type(struct vo *vo, int chroma)
{
struct gl_priv *p = vo->priv;
int nearest = (chroma ? p->cscale : p->lscale) & 64;
if (nearest)
return p->mipmap_gen ? GL_NEAREST_MIPMAP_NEAREST : GL_NEAREST;
return p->mipmap_gen ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR;
}
// Return the high byte of the value that represents white in chroma (U/V)
static int get_chroma_clear_val(int bit_depth)
{
return 1 << (bit_depth - 1 & 7);
}
/**
* \brief Initialize a (new or reused) OpenGL context.
* set global gl-related variables to their default values
*/
static int initGl(struct vo *vo, uint32_t d_width, uint32_t d_height)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
GLint scale_type = get_scale_type(vo, 0);
autodetectGlExtensions(vo);
p->target = p->use_rectangle == 1 ? GL_TEXTURE_RECTANGLE : GL_TEXTURE_2D;
p->yuvconvtype = SET_YUV_CONVERSION(p->use_yuv) |
SET_YUV_LUM_SCALER(p->lscale) |
SET_YUV_CHROM_SCALER(p->cscale);
texSize(vo, p->image_width, p->image_height,
&p->texture_width, &p->texture_height);
gl->Disable(GL_BLEND);
gl->Disable(GL_DEPTH_TEST);
gl->DepthMask(GL_FALSE);
gl->Disable(GL_CULL_FACE);
gl->Enable(p->target);
gl->DrawBuffer(GL_BACK);
gl->TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
MP_VERBOSE(vo, "Creating %dx%d texture...\n",
p->texture_width, p->texture_height);
glCreateClearTex(gl, p->target, p->texfmt, p->gl_format,
p->gl_type, scale_type,
p->texture_width, p->texture_height, 0);
if (p->mipmap_gen)
gl->TexParameteri(p->target, GL_GENERATE_MIPMAP, GL_TRUE);
if (p->is_yuv) {
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(p->image_format);
int i;
int xs = desc.chroma_xs, ys = desc.chroma_ys, depth = desc.plane_bits;
scale_type = get_scale_type(vo, 1);
int clear = get_chroma_clear_val(depth);
gl->GenTextures(21, p->default_texs);
p->default_texs[21] = 0;
for (i = 0; i < 7; i++) {
gl->ActiveTexture(GL_TEXTURE1 + i);
gl->BindTexture(GL_TEXTURE_2D, p->default_texs[i]);
gl->BindTexture(GL_TEXTURE_RECTANGLE, p->default_texs[i + 7]);
gl->BindTexture(GL_TEXTURE_3D, p->default_texs[i + 14]);
}
gl->ActiveTexture(GL_TEXTURE1);
glCreateClearTex(gl, p->target, p->texfmt, p->gl_format,
p->gl_type, scale_type,
p->texture_width >> xs, p->texture_height >> ys,
clear);
if (p->mipmap_gen)
gl->TexParameteri(p->target, GL_GENERATE_MIPMAP, GL_TRUE);
gl->ActiveTexture(GL_TEXTURE2);
glCreateClearTex(gl, p->target, p->texfmt, p->gl_format,
p->gl_type, scale_type,
p->texture_width >> xs, p->texture_height >> ys,
clear);
if (p->mipmap_gen)
gl->TexParameteri(p->target, GL_GENERATE_MIPMAP, GL_TRUE);
gl->ActiveTexture(GL_TEXTURE0);
gl->BindTexture(p->target, 0);
}
if (p->is_yuv || p->custom_prog) {
if ((MASK_NOT_COMBINERS & (1 << p->use_yuv)) || p->custom_prog) {
if (!gl->GenPrograms || !gl->BindProgram)
MP_ERR(vo, "fragment program functions missing!\n");
else {
gl->GenPrograms(1, &p->fragprog);
gl->BindProgram(GL_FRAGMENT_PROGRAM, p->fragprog);
}
}
update_yuvconv(vo);
}
if (gl->BindTexture) {
p->osd = mpgl_osd_init(gl, vo->log, vo->osd);
p->osd->scaled = p->scaled_osd;
}
resize(vo, d_width, d_height);
gl->ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl->Clear(GL_COLOR_BUFFER_BIT);
if (gl->SwapInterval && p->swap_interval >= 0)
gl->SwapInterval(p->swap_interval);
return 1;
}
static bool config_window(struct vo *vo, int flags)
{
struct gl_priv *p = vo->priv;
if (p->stereo_mode == GL_3D_QUADBUFFER)
flags |= VOFLAG_STEREO;
int mpgl_caps = MPGL_CAP_GL_LEGACY;
if (!p->allow_sw)
mpgl_caps |= MPGL_CAP_NO_SW;
return mpgl_config_window(p->glctx, mpgl_caps, flags);
}
static int reconfig(struct vo *vo, struct mp_image_params *params, int flags)
{
struct gl_priv *p = vo->priv;
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(params->imgfmt);
p->image_height = params->h;
p->image_width = params->w;
p->image_format = params->imgfmt;
p->is_yuv = !!(desc.flags & MP_IMGFLAG_YUV_P);
p->is_yuv |= (desc.chroma_xs << 8) | (desc.chroma_ys << 16);
if (p->image_format == IMGFMT_Y8)
p->is_yuv = 0;
glFindFormat(p->image_format, p->have_texture_rg, NULL, &p->texfmt,
&p->gl_format, &p->gl_type);
p->vo_flipped = !!(flags & VOFLAG_FLIPPING);
uninitGl(vo);
if (!config_window(vo, flags))
return -1;
initGl(vo, vo->dwidth, vo->dheight);
return 0;
}
static void do_render(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
// Enable(GL_TEXTURE_2D);
// BindTexture(GL_TEXTURE_2D, texture_id);
gl->Color4f(1, 1, 1, 1);
if (p->is_yuv || p->custom_prog)
glEnableYUVConversion(gl, p->target, p->yuvconvtype);
int src_w = p->src_rect.x1 - p->src_rect.x0;
int src_h = p->src_rect.y1 - p->src_rect.y0;
int dst_w = p->dst_rect.x1 - p->dst_rect.x0;
int dst_h = p->dst_rect.y1 - p->dst_rect.y0;
if (p->stereo_mode) {
glEnable3DLeft(gl, p->stereo_mode);
glDrawTex(gl,
p->dst_rect.x0, p->dst_rect.y0, dst_w, dst_h,
p->src_rect.x0 / 2, p->src_rect.y0, src_w / 2, src_h,
p->texture_width, p->texture_height,
p->use_rectangle == 1, p->is_yuv,
p->mpi_flipped ^ p->vo_flipped);
glEnable3DRight(gl, p->stereo_mode);
glDrawTex(gl,
p->dst_rect.x0, p->dst_rect.y0, dst_w, dst_h,
p->src_rect.x0 / 2 + p->image_width / 2, p->src_rect.y0,
src_w / 2, src_h,
p->texture_width, p->texture_height,
p->use_rectangle == 1, p->is_yuv,
p->mpi_flipped ^ p->vo_flipped);
glDisable3D(gl, p->stereo_mode);
} else {
glDrawTex(gl,
p->dst_rect.x0, p->dst_rect.y0, dst_w, dst_h,
p->src_rect.x0, p->src_rect.y0, src_w, src_h,
p->texture_width, p->texture_height,
p->use_rectangle == 1, p->is_yuv,
p->mpi_flipped ^ p->vo_flipped);
}
if (p->is_yuv || p->custom_prog)
glDisableYUVConversion(gl, p->target, p->yuvconvtype);
draw_osd(vo);
}
static void flip_page(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (p->use_glFinish)
gl->Finish();
p->glctx->swapGlBuffers(p->glctx);
if (p->dst_rect.x0 > 0|| p->dst_rect.y0 > 0 ||
p->dst_rect.x1 < vo->dwidth || p->dst_rect.y1 < vo->dheight)
{
gl->Clear(GL_COLOR_BUFFER_BIT);
}
}
static bool get_image(struct vo *vo, mp_image_t *mpi, int *th, bool *cplane)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
bool common_plane = false;
int needed_size;
if (!gl->GenBuffers || !gl->BindBuffer || !gl->BufferData || !gl->MapBuffer) {
if (!p->err_shown)
MP_ERR(vo, "extensions missing for dr\nExpect a _major_ speed penalty\n");
p->err_shown = 1;
return false;
}
int width = mpi->w, height = mpi->h;
if (p->ati_hack) {
width = p->texture_width;
height = p->texture_height;
}
int avgbpp16 = 0;
for (int pl = 0; pl < 4; pl++)
avgbpp16 += (16 * mpi->fmt.bpp[pl]) >> mpi->fmt.xs[pl] >> mpi->fmt.ys[pl];
int avgbpp = avgbpp16 / 16;
mpi->stride[0] = width * avgbpp / 8;
needed_size = mpi->stride[0] * height;
if (!p->buffer)
gl->GenBuffers(1, &p->buffer);
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer);
if (needed_size > p->buffersize) {
p->buffersize = needed_size;
gl->BufferData(GL_PIXEL_UNPACK_BUFFER, p->buffersize,
NULL, GL_DYNAMIC_DRAW);
}
if (!p->bufferptr)
p->bufferptr = gl->MapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
mpi->planes[0] = p->bufferptr;
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if (!mpi->planes[0]) {
if (!p->err_shown)
MP_ERR(vo, "could not acquire buffer for dr\n"
"Expect a _major_ speed penalty\n");
p->err_shown = 1;
return false;
}
if (p->is_yuv) {
// planar YUV
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(p->image_format);
int xs = desc.chroma_xs, ys = desc.chroma_ys, depth = desc.plane_bits;
int bp = (depth + 7) / 8;
common_plane = true;
mpi->stride[0] = width * bp;
mpi->planes[1] = mpi->planes[0] + mpi->stride[0] * height;
mpi->stride[1] = (width >> xs) * bp;
mpi->planes[2] = mpi->planes[1] + mpi->stride[1] * (height >> ys);
mpi->stride[2] = (width >> xs) * bp;
if (p->ati_hack) {
common_plane = false;
if (!p->buffer_uv[0])
gl->GenBuffers(2, p->buffer_uv);
int buffer_size = mpi->stride[1] * height;
if (buffer_size > p->buffersize_uv) {
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[0]);
gl->BufferData(GL_PIXEL_UNPACK_BUFFER, buffer_size, NULL,
GL_DYNAMIC_DRAW);
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[1]);
gl->BufferData(GL_PIXEL_UNPACK_BUFFER, buffer_size, NULL,
GL_DYNAMIC_DRAW);
p->buffersize_uv = buffer_size;
}
if (!p->bufferptr_uv[0]) {
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[0]);
p->bufferptr_uv[0] = gl->MapBuffer(GL_PIXEL_UNPACK_BUFFER,
GL_WRITE_ONLY);
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[1]);
p->bufferptr_uv[1] = gl->MapBuffer(GL_PIXEL_UNPACK_BUFFER,
GL_WRITE_ONLY);
}
mpi->planes[1] = p->bufferptr_uv[0];
mpi->planes[2] = p->bufferptr_uv[1];
}
}
*th = height;
*cplane = common_plane;
return true;
}
static void clear_border(struct vo *vo, uint8_t *dst, int start, int stride,
int height, int full_height, int value)
{
int right_border = stride - start;
int bottom_border = full_height - height;
while (height > 0) {
if (right_border > 0)
memset(dst + start, value, right_border);
dst += stride;
height--;
}
if (bottom_border > 0)
memset(dst, value, stride * bottom_border);
}
static void draw_image(struct vo *vo, mp_image_t *mpi)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
p->osd_pts = mpi->pts;
int slice = p->slice_height;
int stride[3];
unsigned char *planes[3];
mp_image_t mpi2 = *mpi;
int w = mpi->w, h = mpi->h;
int th = h;
bool common_plane = false;
bool pbo = false;
mpi2.flags = 0;
if (p->force_pbo && !p->bufferptr
&& get_image(vo, &mpi2, &th, &common_plane))
{
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(p->image_format);
int bp = desc.bytes[0];
int xs = desc.chroma_xs, ys = desc.chroma_ys, depth = desc.plane_bits;
memcpy_pic(mpi2.planes[0], mpi->planes[0], mpi->w * bp, mpi->h,
mpi2.stride[0], mpi->stride[0]);
int uv_bytes = (mpi->w >> xs) * bp;
if (p->is_yuv) {
memcpy_pic(mpi2.planes[1], mpi->planes[1], uv_bytes, mpi->h >> ys,
mpi2.stride[1], mpi->stride[1]);
memcpy_pic(mpi2.planes[2], mpi->planes[2], uv_bytes, mpi->h >> ys,
mpi2.stride[2], mpi->stride[2]);
}
if (p->ati_hack) {
// since we have to do a full upload we need to clear the borders
clear_border(vo, mpi2.planes[0], mpi->w * bp, mpi2.stride[0],
mpi->h, th, 0);
if (p->is_yuv) {
int clear = get_chroma_clear_val(depth);
clear_border(vo, mpi2.planes[1], uv_bytes, mpi2.stride[1],
mpi->h >> ys, th >> ys, clear);
clear_border(vo, mpi2.planes[2], uv_bytes, mpi2.stride[2],
mpi->h >> ys, th >> ys, clear);
}
}
mpi = &mpi2;
pbo = true;
}
stride[0] = mpi->stride[0];
stride[1] = mpi->stride[1];
stride[2] = mpi->stride[2];
planes[0] = mpi->planes[0];
planes[1] = mpi->planes[1];
planes[2] = mpi->planes[2];
p->mpi_flipped = stride[0] < 0;
if (pbo) {
intptr_t base = (intptr_t)planes[0];
if (p->ati_hack) {
w = p->texture_width;
h = p->texture_height;
}
if (p->mpi_flipped)
base += (mpi->h - 1) * stride[0];
planes[0] -= base;
planes[1] -= base;
planes[2] -= base;
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer);
gl->UnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
p->bufferptr = NULL;
if (!common_plane)
planes[0] = planes[1] = planes[2] = NULL;
slice = 0; // always "upload" full texture
}
glUploadTex(gl, p->target, p->gl_format, p->gl_type, planes[0],
stride[0], 0, 0, w, h, slice);
if (p->is_yuv) {
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(p->image_format);
int xs = desc.chroma_xs, ys = desc.chroma_ys;
if (pbo && !common_plane) {
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[0]);
gl->UnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
p->bufferptr_uv[0] = NULL;
}
gl->ActiveTexture(GL_TEXTURE1);
glUploadTex(gl, p->target, p->gl_format, p->gl_type, planes[1],
stride[1], 0, 0, w >> xs, h >> ys, slice);
if (pbo && !common_plane) {
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, p->buffer_uv[1]);
gl->UnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
p->bufferptr_uv[1] = NULL;
}
gl->ActiveTexture(GL_TEXTURE2);
glUploadTex(gl, p->target, p->gl_format, p->gl_type, planes[2],
stride[2], 0, 0, w >> xs, h >> ys, slice);
gl->ActiveTexture(GL_TEXTURE0);
}
if (pbo) {
gl->BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
do_render(vo);
talloc_free(mpi);
}
static mp_image_t *get_screenshot(struct vo *vo)
{
struct gl_priv *p = vo->priv;
GL *gl = p->gl;
if (!vo->params)
return NULL;
mp_image_t *image = mp_image_alloc(p->image_format, p->texture_width,
p->texture_height);
if (!image)
return NULL;
glDownloadTex(gl, p->target, p->gl_format, p->gl_type, image->planes[0],
image->stride[0]);
if (p->is_yuv) {
gl->ActiveTexture(GL_TEXTURE1);
glDownloadTex(gl, p->target, p->gl_format, p->gl_type, image->planes[1],
image->stride[1]);
gl->ActiveTexture(GL_TEXTURE2);
glDownloadTex(gl, p->target, p->gl_format, p->gl_type, image->planes[2],
image->stride[2]);
gl->ActiveTexture(GL_TEXTURE0);
}
mp_image_set_size(image, p->image_width, p->image_height);
mp_image_set_attributes(image, vo->params);
return image;
}
static int query_format(struct vo *vo, uint32_t format)
{
struct gl_priv *p = vo->priv;
struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(format);
int depth = desc.plane_bits;
int caps = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
if (format == IMGFMT_RGB24 || format == IMGFMT_RGBA)
return caps;
if (p->use_yuv && (desc.flags & MP_IMGFLAG_YUV_P) &&
(depth == 8 || depth == 16 ||
p->max_tex_component_size >= 16 && glYUVLargeRange(p->use_yuv)) &&
(depth <= 16 && (desc.flags & MP_IMGFLAG_NE)))
return caps;
// HACK, otherwise we get only b&w with some filters (e.g. -vf eq)
// ideally MPlayer should be fixed instead not to use Y800 when it has the choice
if (!p->use_yuv && (format == IMGFMT_Y8))
return 0;
if (!p->use_ycbcr && (format == IMGFMT_UYVY))
return 0;
if (p->many_fmts &&
glFindFormat(format, p->have_texture_rg, NULL, NULL, NULL, NULL))
return caps;
return 0;
}
static void uninit(struct vo *vo)
{
struct gl_priv *p = vo->priv;
uninitGl(vo);
mpgl_uninit(p->glctx);
p->glctx = NULL;
p->gl = NULL;
}
static int preinit(struct vo *vo)
{
struct gl_priv *p = vo->priv;
if (p->use_yuv == 1) {
MP_WARN(vo, "yuv=1 (nVidia register combiners) have"
" been removed, using yuv=2 instead.\n");
p->use_yuv = 2;
}
p->glctx = mpgl_init(vo, p->backend_arg);
if (!p->glctx)
goto err_out;
p->gl = p->glctx->gl;
if (p->use_yuv == -1) {
if (!config_window(vo, VOFLAG_HIDDEN))
goto err_out;
autodetectGlExtensions(vo);
}
MP_VERBOSE(vo, "Using %d as slice height "
"(0 means image height).\n", p->slice_height);
return 0;
err_out:
uninit(vo);
return -1;
}
static int control(struct vo *vo, uint32_t request, void *data)
{
struct gl_priv *p = vo->priv;
switch (request) {
case VOCTRL_GET_PANSCAN:
return VO_TRUE;
case VOCTRL_SET_PANSCAN:
resize(vo, vo->dwidth, vo->dheight);
return VO_TRUE;
case VOCTRL_GET_EQUALIZER:
if (p->is_yuv) {
struct voctrl_get_equalizer_args *args = data;
return mp_csp_equalizer_get(&p->video_eq, args->name, args->valueptr)
>= 0 ? VO_TRUE : VO_NOTIMPL;
}
break;
case VOCTRL_SET_EQUALIZER:
if (p->is_yuv) {
struct voctrl_set_equalizer_args *args = data;
if (mp_csp_equalizer_set(&p->video_eq, args->name, args->value) < 0)
return VO_NOTIMPL;
update_yuvconv(vo);
vo->want_redraw = true;
return VO_TRUE;
}
break;
case VOCTRL_GET_COLORSPACE: {
struct mp_image_params *params = data;
bool supports_csp = (1 << p->use_yuv) & MASK_NOT_COMBINERS;
if (vo->params && supports_csp) {
params->colorspace = vo->params->colorspace;
params->colorlevels = vo->params->colorlevels;
params->outputlevels = vo->params->outputlevels;
}
return VO_TRUE;
}
case VOCTRL_REDRAW_FRAME:
do_render(vo);
return true;
case VOCTRL_SCREENSHOT: {
struct voctrl_screenshot_args *args = data;
if (args->full_window)
args->out_image = glGetWindowScreenshot(p->gl);
else
args->out_image = get_screenshot(vo);
return true;
}
}
int events = 0;
int r = p->glctx->vo_control(vo, &events, request, data);
if (events & VO_EVENT_RESIZE)
resize(vo, vo->dwidth, vo->dheight);
if (events & VO_EVENT_EXPOSE)
vo->want_redraw = true;
return r;
}
#define OPT_BASE_STRUCT struct gl_priv
const struct vo_driver video_out_opengl_old = {
.description = "OpenGL (legacy VO, may work better on older GPUs)",
.name = "opengl-old",
.preinit = preinit,
.query_format = query_format,
.reconfig = reconfig,
.control = control,
.draw_image = draw_image,
.flip_page = flip_page,
.uninit = uninit,
.priv_size = sizeof(struct gl_priv),
.priv_defaults = &(const struct gl_priv) {
.many_fmts = 1,
.use_yuv = -1,
.filter_strength = 0.5,
.use_rectangle = -1,
.ati_hack = -1,
.force_pbo = -1,
.swap_interval = 1,
.custom_prog = NULL,
.custom_tex = NULL,
.custom_tlin = 1,
.osd_color = 0xffffff,
},
.options = (const struct m_option[]) {
OPT_FLAG("manyfmts", many_fmts, 0),
OPT_FLAG("scaled-osd", scaled_osd, 0),
OPT_FLAG("ycbcr", use_ycbcr, 0),
OPT_INT("slice-height", slice_height, M_OPT_MIN, .min = 0),
OPT_INT("rectangle", use_rectangle, M_OPT_MIN, .min = -1),
OPT_INT("yuv", use_yuv, M_OPT_MIN, .min = -1),
OPT_INT("lscale", lscale, M_OPT_MIN, .min = 0),
OPT_INT("cscale", cscale, M_OPT_MIN, .min = 0),
OPT_FLOAT("filter-strength", filter_strength, 0),
OPT_FLOAT("noise-strength", noise_strength, 0),
OPT_CHOICE("ati-hack", ati_hack, 0,
({"auto", -1}, {"no", 0}, {"yes", 1})),
OPT_CHOICE("force-pbo", force_pbo, 0,
({"auto", -1}, {"no", 0}, {"yes", 1})),
OPT_FLAG("glfinish", use_glFinish, 0),
OPT_INT("swapinterval", swap_interval, 0),
OPT_STRING("customprog", custom_prog, 0),
OPT_STRING("customtex", custom_tex, 0),
OPT_FLAG("customtlin", custom_tlin, 0),
OPT_FLAG("customtrect", custom_trect, 0),
OPT_FLAG("mipmapgen", mipmap_gen, 0),
OPT_INT("osdcolor", osd_color, 0),
OPT_INT("stereo", stereo_mode, 0),
OPT_FLAG("sw", allow_sw, 0),
OPT_STRING_VALIDATE("backend", backend_arg, 0, mpgl_validate_backend_opt),
{0}
},
};
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