mirror of
https://github.com/mpv-player/mpv
synced 2024-12-16 11:55:42 +00:00
36c071082a
cards to switch to software mode and be unusable. Double texture size to avoid this causing artefacts. Note: yuv=6 will not be changed, so it will stay unusable with ATI cards unless ATI starts supporting this. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18696 b3059339-0415-0410-9bf9-f77b7e298cf2
1421 lines
48 KiB
C
1421 lines
48 KiB
C
/**
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* \file gl_common.c
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* \brief OpenGL helper functions used by vo_gl.c and vo_gl2.c
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*
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* Common OpenGL routines.
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* Copyleft (C) Reimar Döffinger <Reimar.Doeffinger@stud.uni-karlsruhe.de>, 2005
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* Licensend under the GNU GPL v2.
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* Special thanks go to the xine team and Matthias Hopf, whose video_out_opengl.c
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* gave me lots of good ideas.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <math.h>
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#include "gl_common.h"
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/**
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* \defgroup glextfunctions OpenGL extension functions
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*
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* the pointers to these functions are acquired when the OpenGL
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* context is created
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* \{
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*/
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void (APIENTRY *GenBuffers)(GLsizei, GLuint *);
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void (APIENTRY *DeleteBuffers)(GLsizei, const GLuint *);
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void (APIENTRY *BindBuffer)(GLenum, GLuint);
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GLvoid* (APIENTRY *MapBuffer)(GLenum, GLenum);
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GLboolean (APIENTRY *UnmapBuffer)(GLenum);
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void (APIENTRY *BufferData)(GLenum, intptr_t, const GLvoid *, GLenum);
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void (APIENTRY *CombinerParameterfv)(GLenum, const GLfloat *);
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void (APIENTRY *CombinerParameteri)(GLenum, GLint);
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void (APIENTRY *CombinerInput)(GLenum, GLenum, GLenum, GLenum, GLenum,
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GLenum);
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void (APIENTRY *CombinerOutput)(GLenum, GLenum, GLenum, GLenum, GLenum,
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GLenum, GLenum, GLboolean, GLboolean,
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GLboolean);
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void (APIENTRY *BeginFragmentShader)(void);
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void (APIENTRY *EndFragmentShader)(void);
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void (APIENTRY *SampleMap)(GLuint, GLuint, GLenum);
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void (APIENTRY *ColorFragmentOp2)(GLenum, GLuint, GLuint, GLuint, GLuint,
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GLuint, GLuint, GLuint, GLuint, GLuint);
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void (APIENTRY *ColorFragmentOp3)(GLenum, GLuint, GLuint, GLuint, GLuint,
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GLuint, GLuint, GLuint, GLuint, GLuint,
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GLuint, GLuint, GLuint);
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void (APIENTRY *SetFragmentShaderConstant)(GLuint, const GLfloat *);
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void (APIENTRY *ActiveTexture)(GLenum);
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void (APIENTRY *BindTexture)(GLenum, GLuint);
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void (APIENTRY *MultiTexCoord2f)(GLenum, GLfloat, GLfloat);
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void (APIENTRY *GenPrograms)(GLsizei, GLuint *);
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void (APIENTRY *DeletePrograms)(GLsizei, const GLuint *);
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void (APIENTRY *BindProgram)(GLenum, GLuint);
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void (APIENTRY *ProgramString)(GLenum, GLenum, GLsizei, const GLvoid *);
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void (APIENTRY *GetProgramiv)(GLenum, GLenum, GLint *);
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void (APIENTRY *ProgramEnvParameter4f)(GLenum, GLuint, GLfloat, GLfloat,
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GLfloat, GLfloat);
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int (APIENTRY *SwapInterval)(int);
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void (APIENTRY *TexImage3D)(GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei,
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GLint, GLenum, GLenum, const GLvoid *);
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/** \} */ // end of glextfunctions group
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//! \defgroup glgeneral OpenGL general helper functions
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//! \defgroup glcontext OpenGL context management helper functions
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//! \defgroup gltexture OpenGL texture handling helper functions
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//! \defgroup glconversion OpenGL conversion helper functions
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/**
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* \brief adjusts the GL_UNPACK_ALIGNMENT to fit the stride.
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* \param stride number of bytes per line for which alignment should fit.
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* \ingroup glgeneral
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*/
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void glAdjustAlignment(int stride) {
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GLint gl_alignment;
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if (stride % 8 == 0)
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gl_alignment=8;
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else if (stride % 4 == 0)
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gl_alignment=4;
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else if (stride % 2 == 0)
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gl_alignment=2;
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else
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gl_alignment=1;
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glPixelStorei (GL_UNPACK_ALIGNMENT, gl_alignment);
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}
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struct gl_name_map_struct {
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GLint value;
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char *name;
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};
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#undef MAP
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#define MAP(a) {a, #a}
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//! mapping table for the glValName function
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static const struct gl_name_map_struct gl_name_map[] = {
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// internal format
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MAP(GL_R3_G3_B2), MAP(GL_RGB4), MAP(GL_RGB5), MAP(GL_RGB8),
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MAP(GL_RGB10), MAP(GL_RGB12), MAP(GL_RGB16), MAP(GL_RGBA2),
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MAP(GL_RGBA4), MAP(GL_RGB5_A1), MAP(GL_RGBA8), MAP(GL_RGB10_A2),
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MAP(GL_RGBA12), MAP(GL_RGBA16), MAP(GL_LUMINANCE8),
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// format
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MAP(GL_RGB), MAP(GL_RGBA), MAP(GL_RED), MAP(GL_GREEN), MAP(GL_BLUE),
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MAP(GL_ALPHA), MAP(GL_LUMINANCE), MAP(GL_LUMINANCE_ALPHA),
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MAP(GL_COLOR_INDEX),
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// rest 1.2 only
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MAP(GL_BGR), MAP(GL_BGRA),
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//type
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MAP(GL_BYTE), MAP(GL_UNSIGNED_BYTE), MAP(GL_SHORT), MAP(GL_UNSIGNED_SHORT),
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MAP(GL_INT), MAP(GL_UNSIGNED_INT), MAP(GL_FLOAT), MAP(GL_DOUBLE),
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MAP(GL_2_BYTES), MAP(GL_3_BYTES), MAP(GL_4_BYTES),
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// rest 1.2 only
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MAP(GL_UNSIGNED_BYTE_3_3_2), MAP(GL_UNSIGNED_BYTE_2_3_3_REV),
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MAP(GL_UNSIGNED_SHORT_5_6_5), MAP(GL_UNSIGNED_SHORT_5_6_5_REV),
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MAP(GL_UNSIGNED_SHORT_4_4_4_4), MAP(GL_UNSIGNED_SHORT_4_4_4_4_REV),
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MAP(GL_UNSIGNED_SHORT_5_5_5_1), MAP(GL_UNSIGNED_SHORT_1_5_5_5_REV),
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MAP(GL_UNSIGNED_INT_8_8_8_8), MAP(GL_UNSIGNED_INT_8_8_8_8_REV),
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MAP(GL_UNSIGNED_INT_10_10_10_2), MAP(GL_UNSIGNED_INT_2_10_10_10_REV),
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{0, 0}
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};
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#undef MAP
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/**
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* \brief return the name of an OpenGL constant
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* \param value the constant
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* \return name of the constant or "Unknown format!"
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* \ingroup glgeneral
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*/
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const char *glValName(GLint value)
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{
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int i = 0;
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while (gl_name_map[i].name) {
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if (gl_name_map[i].value == value)
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return gl_name_map[i].name;
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i++;
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}
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return "Unknown format!";
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}
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//! always return this format as internal texture format in glFindFormat
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#define TEXTUREFORMAT_ALWAYS GL_RGB8
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#undef TEXTUREFORMAT_ALWAYS
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/**
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* \brief find the OpenGL settings coresponding to format.
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*
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* All parameters may be NULL.
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* \param fmt MPlayer format to analyze.
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* \param bpp [OUT] bits per pixel of that format.
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* \param gl_texfmt [OUT] internal texture format that fits the
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* image format, not necessarily the best for performance.
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* \param gl_format [OUT] OpenGL format for this image format.
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* \param gl_type [OUT] OpenGL type for this image format.
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* \return 1 if format is supported by OpenGL, 0 if not.
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* \ingroup gltexture
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*/
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int glFindFormat(uint32_t fmt, int *bpp, GLint *gl_texfmt,
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GLenum *gl_format, GLenum *gl_type)
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{
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int supported = 1;
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int dummy1;
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GLenum dummy2;
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GLint dummy3;
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if (bpp == NULL) bpp = &dummy1;
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if (gl_texfmt == NULL) gl_texfmt = &dummy3;
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if (gl_format == NULL) gl_format = &dummy2;
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if (gl_type == NULL) gl_type = &dummy2;
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*bpp = IMGFMT_IS_BGR(fmt)?IMGFMT_BGR_DEPTH(fmt):IMGFMT_RGB_DEPTH(fmt);
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*gl_texfmt = 3;
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switch (fmt) {
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case IMGFMT_RGB24:
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*gl_format = GL_RGB;
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*gl_type = GL_UNSIGNED_BYTE;
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break;
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case IMGFMT_RGBA:
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*gl_texfmt = 4;
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*gl_format = GL_RGBA;
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*gl_type = GL_UNSIGNED_BYTE;
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break;
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case IMGFMT_YV12:
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supported = 0; // no native YV12 support
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case IMGFMT_Y800:
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case IMGFMT_Y8:
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*gl_texfmt = 1;
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*bpp = 8;
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*gl_format = GL_LUMINANCE;
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*gl_type = GL_UNSIGNED_BYTE;
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break;
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#if 0
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// we do not support palettized formats, although the format the
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// swscale produces works
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case IMGFMT_RGB8:
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gl_format = GL_RGB;
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gl_type = GL_UNSIGNED_BYTE_2_3_3_REV;
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break;
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#endif
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case IMGFMT_RGB15:
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*gl_format = GL_RGBA;
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*gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
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break;
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case IMGFMT_RGB16:
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*gl_format = GL_RGB;
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*gl_type = GL_UNSIGNED_SHORT_5_6_5_REV;
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break;
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#if 0
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case IMGFMT_BGR8:
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// special case as red and blue have a differen number of bits.
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// GL_BGR and GL_UNSIGNED_BYTE_3_3_2 isn't supported at least
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// by nVidia drivers, and in addition would give more bits to
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// blue than to red, which isn't wanted
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gl_format = GL_RGB;
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gl_type = GL_UNSIGNED_BYTE_3_3_2;
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break;
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#endif
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case IMGFMT_BGR15:
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*gl_format = GL_BGRA;
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*gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
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break;
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case IMGFMT_BGR16:
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*gl_format = GL_RGB;
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*gl_type = GL_UNSIGNED_SHORT_5_6_5;
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break;
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case IMGFMT_BGR24:
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*gl_format = GL_BGR;
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*gl_type = GL_UNSIGNED_BYTE;
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break;
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case IMGFMT_BGRA:
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*gl_texfmt = 4;
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*gl_format = GL_BGRA;
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*gl_type = GL_UNSIGNED_BYTE;
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break;
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default:
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*gl_texfmt = 4;
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*gl_format = GL_RGBA;
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*gl_type = GL_UNSIGNED_BYTE;
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supported = 0;
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}
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#ifdef TEXTUREFORMAT_ALWAYS
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*gl_texfmt = TEXTUREFORMAT_ALWAYS;
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#endif
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return supported;
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}
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static void *setNull(const GLubyte *s) {
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return NULL;
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}
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typedef struct {
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void **funcptr;
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char *extstr;
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char *funcnames[7];
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} extfunc_desc_t;
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static const extfunc_desc_t extfuncs[] = {
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{(void **)&GenBuffers, NULL, {"glGenBuffers", "glGenBuffersARB", NULL}},
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{(void **)&DeleteBuffers, NULL, {"glDeleteBuffers", "glDeleteBuffersARB", NULL}},
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{(void **)&BindBuffer, NULL, {"glBindBuffer", "glBindBufferARB", NULL}},
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{(void **)&MapBuffer, NULL, {"glMapBuffer", "glMapBufferARB", NULL}},
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{(void **)&UnmapBuffer, NULL, {"glUnmapBuffer", "glUnmapBufferARB", NULL}},
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{(void **)&BufferData, NULL, {"glBufferData", "glBufferDataARB", NULL}},
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{(void **)&CombinerParameterfv, "NV_register_combiners", {"glCombinerParameterfv", "glCombinerParameterfvNV", NULL}},
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{(void **)&CombinerParameteri, "NV_register_combiners", {"glCombinerParameteri", "glCombinerParameteriNV", NULL}},
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{(void **)&CombinerInput, "NV_register_combiners", {"glCombinerInput", "glCombinerInputNV", NULL}},
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{(void **)&CombinerOutput, "NV_register_combiners", {"glCombinerOutput", "glCombinerOutputNV", NULL}},
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{(void **)&BeginFragmentShader, "ATI_fragment_shader", {"glBeginFragmentShaderATI", NULL}},
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{(void **)&EndFragmentShader, "ATI_fragment_shader", {"glEndFragmentShaderATI", NULL}},
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{(void **)&SampleMap, "ATI_fragment_shader", {"glSampleMapATI", NULL}},
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{(void **)&ColorFragmentOp2, "ATI_fragment_shader", {"glColorFragmentOp2ATI", NULL}},
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{(void **)&ColorFragmentOp3, "ATI_fragment_shader", {"glColorFragmentOp3ATI", NULL}},
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{(void **)&SetFragmentShaderConstant, "ATI_fragment_shader", {"glSetFragmentShaderConstantATI", NULL}},
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{(void **)&ActiveTexture, NULL, {"glActiveTexture", "glActiveTextureARB", NULL}},
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{(void **)&BindTexture, NULL, {"glBindTexture", "glBindTextureARB", "glBindTextureEXT", NULL}},
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{(void **)&MultiTexCoord2f, NULL, {"glMultiTexCoord2f", "glMultiTexCoord2fARB", NULL}},
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{(void **)&GenPrograms, "_program", {"glGenPrograms", "glGenProgramsARB", "glGenProgramsNV", NULL}},
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{(void **)&DeletePrograms, "_program", {"glDeletePrograms", "glDeleteProgramsARB", "glDeleteProgramsNV", NULL}},
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{(void **)&BindProgram, "_program", {"glBindProgram", "glBindProgramARB", "glBindProgramNV", NULL}},
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{(void **)&ProgramString, "_program", {"glProgramString", "glProgramStringARB", "glProgramStringNV", NULL}},
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{(void **)&GetProgramiv, "_program", {"glGetProgramiv", "glGetProgramivARB", "glGetProgramivNV", NULL}},
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{(void **)&ProgramEnvParameter4f, "_program", {"glProgramEnvParameter4f", "glProgramEnvParameter4fARB", "glProgramEnvParameter4fNV", NULL}},
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{(void **)&SwapInterval, "_swap_control", {"glXSwapInterval", "glXSwapIntervalEXT", "glXSwapIntervalSGI", "wglSwapInterval", "wglSwapIntervalEXT", "wglSwapIntervalSGI", NULL}},
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{(void **)&TexImage3D, NULL, {"glTexImage3D", NULL}},
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{NULL}
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};
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/**
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* \brief find the function pointers of some useful OpenGL extensions
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* \param getProcAddress function to resolve function names, may be NULL
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* \param ext2 an extra extension string
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*/
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static void getFunctions(void *(*getProcAddress)(const GLubyte *),
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const char *ext2) {
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const extfunc_desc_t *dsc;
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const char *extensions = (const char *)glGetString(GL_EXTENSIONS);
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char *allexts;
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if (!extensions) extensions = "";
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if (!ext2) ext2 = "";
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allexts = (char *)malloc(strlen(extensions) + strlen(ext2) + 2);
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strcpy(allexts, extensions);
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strcat(allexts, " ");
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strcat(allexts, ext2);
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mp_msg(MSGT_VO, MSGL_V, "OpenGL extensions string:\n%s\n", allexts);
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if (!getProcAddress)
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getProcAddress = setNull;
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for (dsc = extfuncs; dsc->funcptr; dsc++) {
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void *ptr = NULL;
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int i;
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if (!dsc->extstr || strstr(allexts, dsc->extstr)) {
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for (i = 0; !ptr && dsc->funcnames[i]; i++)
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ptr = getProcAddress((const GLubyte *)dsc->funcnames[i]);
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}
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*(dsc->funcptr) = ptr;
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}
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free(allexts);
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}
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/**
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* \brief create a texture and set some defaults
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* \param target texture taget, usually GL_TEXTURE_2D
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* \param fmt internal texture format
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* \param filter filter used for scaling, e.g. GL_LINEAR
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* \param w texture width
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* \param h texture height
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* \param val luminance value to fill texture with
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* \ingroup gltexture
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*/
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void glCreateClearTex(GLenum target, GLenum fmt, GLint filter,
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int w, int h, unsigned char val) {
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GLfloat fval = (GLfloat)val / 255.0;
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GLfloat border[4] = {fval, fval, fval, fval};
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GLenum clrfmt = (fmt == GL_ALPHA) ? GL_ALPHA : GL_LUMINANCE;
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char *init = (char *)malloc(w * h);
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memset(init, val, w * h);
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glAdjustAlignment(w);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, w);
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glTexImage2D(target, 0, fmt, w, h, 0, clrfmt, GL_UNSIGNED_BYTE, init);
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glTexParameterf(target, GL_TEXTURE_PRIORITY, 1.0);
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glTexParameteri(target, GL_TEXTURE_MIN_FILTER, filter);
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glTexParameteri(target, GL_TEXTURE_MAG_FILTER, filter);
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glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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// Border texels should not be used with CLAMP_TO_EDGE
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// We set a sane default anyway.
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glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, border);
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free(init);
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}
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|
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/**
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* \brief skips whitespace and comments
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|
* \param f file to read from
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*/
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static void ppm_skip(FILE *f) {
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int c, comment = 0;
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do {
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c = fgetc(f);
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if (c == '#')
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comment = 1;
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if (c == '\n')
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comment = 0;
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} while (c != EOF && (isspace(c) || comment));
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if (c != EOF)
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ungetc(c, f);
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}
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#define MAXDIM (16 * 1024)
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|
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/**
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* \brief creates a texture from a PPM file
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* \param target texture taget, usually GL_TEXTURE_2D
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* \param fmt internal texture format
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* \param filter filter used for scaling, e.g. GL_LINEAR
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* \param f file to read PPM from
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* \param width [out] width of texture
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* \param height [out] height of texture
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* \param maxval [out] maxval value from PPM file
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* \return 0 on error, 1 otherwise
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* \ingroup gltexture
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|
*/
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|
int glCreatePPMTex(GLenum target, GLenum fmt, GLint filter,
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FILE *f, int *width, int *height, int *maxval) {
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unsigned w, h, m, val;
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char *data;
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ppm_skip(f);
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if (fgetc(f) != 'P' || fgetc(f) != '6')
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return 0;
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ppm_skip(f);
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if (fscanf(f, "%u", &w) != 1)
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return 0;
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ppm_skip(f);
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if (fscanf(f, "%u", &h) != 1)
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return 0;
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ppm_skip(f);
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if (fscanf(f, "%u", &m) != 1)
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return 0;
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val = fgetc(f);
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|
if (!isspace(val))
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return 0;
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if (w > MAXDIM || h > MAXDIM)
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return 0;
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data = (char *)malloc(w * h * 3);
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if (fread(data, w * 3, h, f) != h)
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return 0;
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glCreateClearTex(target, fmt, filter, w, h, 0);
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glUploadTex(target, GL_RGB, GL_UNSIGNED_BYTE, data, w * 3, 0, 0, w, h, 0);
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free(data);
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if (width) *width = w;
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if (height) *height = h;
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if (maxval) *maxval = m;
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return 1;
|
|
}
|
|
|
|
/**
|
|
* \brief return the number of bytes per pixel for the given format
|
|
* \param format OpenGL format
|
|
* \param type OpenGL type
|
|
* \return bytes per pixel
|
|
* \ingroup glgeneral
|
|
*
|
|
* Does not handle all possible variants, just those used by MPlayer
|
|
*/
|
|
int glFmt2bpp(GLenum format, GLenum type) {
|
|
switch (type) {
|
|
case GL_UNSIGNED_BYTE_3_3_2:
|
|
case GL_UNSIGNED_BYTE_2_3_3_REV:
|
|
return 1;
|
|
case GL_UNSIGNED_SHORT_5_5_5_1:
|
|
case GL_UNSIGNED_SHORT_1_5_5_5_REV:
|
|
case GL_UNSIGNED_SHORT_5_6_5:
|
|
case GL_UNSIGNED_SHORT_5_6_5_REV:
|
|
return 2;
|
|
}
|
|
if (type != GL_UNSIGNED_BYTE)
|
|
return 0; //not implemented
|
|
switch (format) {
|
|
case GL_LUMINANCE:
|
|
case GL_ALPHA:
|
|
return 1;
|
|
case GL_RGB:
|
|
case GL_BGR:
|
|
return 3;
|
|
case GL_RGBA:
|
|
case GL_BGRA:
|
|
return 4;
|
|
}
|
|
return 0; // unknown
|
|
}
|
|
|
|
/**
|
|
* \brief upload a texture, handling things like stride and slices
|
|
* \param target texture target, usually GL_TEXTURE_2D
|
|
* \param format OpenGL format of data
|
|
* \param type OpenGL type of data
|
|
* \param data data to upload
|
|
* \param stride data stride
|
|
* \param x x offset in texture
|
|
* \param y y offset in texture
|
|
* \param w width of the texture part to upload
|
|
* \param h height of the texture part to upload
|
|
* \param slice height of an upload slice, 0 for all at once
|
|
* \ingroup gltexture
|
|
*/
|
|
void glUploadTex(GLenum target, GLenum format, GLenum type,
|
|
const void *data, int stride,
|
|
int x, int y, int w, int h, int slice) {
|
|
int y_max = y + h;
|
|
if (w <= 0 || h <= 0) return;
|
|
if (slice <= 0)
|
|
slice = h;
|
|
if (stride < 0) {
|
|
data += h * stride;
|
|
stride = -stride;
|
|
}
|
|
// this is not always correct, but should work for MPlayer
|
|
glAdjustAlignment(stride);
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, stride / glFmt2bpp(format, type));
|
|
for (; y + slice <= y_max; y += slice) {
|
|
glTexSubImage2D(target, 0, x, y, w, slice, format, type, data);
|
|
data += stride * slice;
|
|
}
|
|
if (y < y_max)
|
|
glTexSubImage2D(target, 0, x, y, w, y_max - y, format, type, data);
|
|
}
|
|
|
|
static void fillUVcoeff(GLfloat *ucoef, GLfloat *vcoef,
|
|
float uvcos, float uvsin) {
|
|
int i;
|
|
ucoef[0] = 0 * uvcos + 1.403 * uvsin;
|
|
vcoef[0] = 0 * uvsin + 1.403 * uvcos;
|
|
ucoef[1] = -0.344 * uvcos + -0.714 * uvsin;
|
|
vcoef[1] = -0.344 * uvsin + -0.714 * uvcos;
|
|
ucoef[2] = 1.770 * uvcos + 0 * uvsin;
|
|
vcoef[2] = 1.770 * uvsin + 0 * uvcos;
|
|
ucoef[3] = 0;
|
|
vcoef[3] = 0;
|
|
// Coefficients (probably) must be in [0, 1] range, whereas they originally
|
|
// are in [-2, 2] range, so here comes the trick:
|
|
// First put them in the [-0.5, 0.5] range, then add 0.5.
|
|
// This can be undone with the HALF_BIAS and SCALE_BY_FOUR arguments
|
|
// for CombinerInput and CombinerOutput (or the respective ATI variants)
|
|
for (i = 0; i < 4; i++) {
|
|
ucoef[i] = ucoef[i] * 0.25 + 0.5;
|
|
vcoef[i] = vcoef[i] * 0.25 + 0.5;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief Setup register combiners for YUV to RGB conversion.
|
|
* \param uvcos used for saturation and hue adjustment
|
|
* \param uvsin used for saturation and hue adjustment
|
|
*/
|
|
static void glSetupYUVCombiners(float uvcos, float uvsin) {
|
|
GLfloat ucoef[4];
|
|
GLfloat vcoef[4];
|
|
GLint i;
|
|
if (!CombinerInput || !CombinerOutput ||
|
|
!CombinerParameterfv || !CombinerParameteri) {
|
|
mp_msg(MSGT_VO, MSGL_FATAL, "[gl] Combiner functions missing!\n");
|
|
return;
|
|
}
|
|
glGetIntegerv(GL_MAX_GENERAL_COMBINERS_NV, &i);
|
|
if (i < 2)
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] 2 general combiners needed for YUV combiner support (found %i)\n", i);
|
|
glGetIntegerv (GL_MAX_TEXTURE_UNITS, &i);
|
|
if (i < 3)
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] 3 texture units needed for YUV combiner support (found %i)\n", i);
|
|
fillUVcoeff(ucoef, vcoef, uvcos, uvsin);
|
|
CombinerParameterfv(GL_CONSTANT_COLOR0_NV, ucoef);
|
|
CombinerParameterfv(GL_CONSTANT_COLOR1_NV, vcoef);
|
|
|
|
// UV first, like this green component cannot overflow
|
|
CombinerInput(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,
|
|
GL_TEXTURE1, GL_HALF_BIAS_NORMAL_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
|
|
GL_CONSTANT_COLOR0_NV, GL_HALF_BIAS_NORMAL_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV,
|
|
GL_TEXTURE2, GL_HALF_BIAS_NORMAL_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV,
|
|
GL_CONSTANT_COLOR1_NV, GL_HALF_BIAS_NORMAL_NV, GL_RGB);
|
|
CombinerOutput(GL_COMBINER0_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV,
|
|
GL_SPARE0_NV, GL_SCALE_BY_FOUR_NV, GL_NONE, GL_FALSE,
|
|
GL_FALSE, GL_FALSE);
|
|
|
|
// stage 2
|
|
CombinerInput(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_A_NV, GL_SPARE0_NV,
|
|
GL_SIGNED_IDENTITY_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_B_NV, GL_ZERO,
|
|
GL_UNSIGNED_INVERT_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_C_NV,
|
|
GL_TEXTURE0, GL_SIGNED_IDENTITY_NV, GL_RGB);
|
|
CombinerInput(GL_COMBINER1_NV, GL_RGB, GL_VARIABLE_D_NV, GL_ZERO,
|
|
GL_UNSIGNED_INVERT_NV, GL_RGB);
|
|
CombinerOutput(GL_COMBINER1_NV, GL_RGB, GL_DISCARD_NV, GL_DISCARD_NV,
|
|
GL_SPARE0_NV, GL_NONE, GL_NONE, GL_FALSE,
|
|
GL_FALSE, GL_FALSE);
|
|
|
|
// leave final combiner stage in default mode
|
|
CombinerParameteri(GL_NUM_GENERAL_COMBINERS_NV, 2);
|
|
}
|
|
|
|
/**
|
|
* \brief Setup ATI version of register combiners for YUV to RGB conversion.
|
|
* \param uvcos used for saturation and hue adjustment
|
|
* \param uvsin used for saturation and hue adjustment
|
|
*
|
|
* ATI called this fragment shader, but the name is confusing in the
|
|
* light of a very different OpenGL 2.0 extension with the same name
|
|
*/
|
|
static void glSetupYUVCombinersATI(float uvcos, float uvsin) {
|
|
GLfloat ucoef[4];
|
|
GLfloat vcoef[4];
|
|
GLint i;
|
|
if (!BeginFragmentShader || !EndFragmentShader ||
|
|
!SetFragmentShaderConstant || !SampleMap ||
|
|
!ColorFragmentOp2 || !ColorFragmentOp3) {
|
|
mp_msg(MSGT_VO, MSGL_FATAL, "[gl] Combiner (ATI) functions missing!\n");
|
|
return;
|
|
}
|
|
glGetIntegerv(GL_NUM_FRAGMENT_REGISTERS_ATI, &i);
|
|
if (i < 3)
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] 3 registers needed for YUV combiner (ATI) support (found %i)\n", i);
|
|
glGetIntegerv (GL_MAX_TEXTURE_UNITS, &i);
|
|
if (i < 3)
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] 3 texture units needed for YUV combiner (ATI) support (found %i)\n", i);
|
|
fillUVcoeff(ucoef, vcoef, uvcos, uvsin);
|
|
BeginFragmentShader();
|
|
SetFragmentShaderConstant(GL_CON_0_ATI, ucoef);
|
|
SetFragmentShaderConstant(GL_CON_1_ATI, vcoef);
|
|
SampleMap(GL_REG_0_ATI, GL_TEXTURE0, GL_SWIZZLE_STR_ATI);
|
|
SampleMap(GL_REG_1_ATI, GL_TEXTURE1, GL_SWIZZLE_STR_ATI);
|
|
SampleMap(GL_REG_2_ATI, GL_TEXTURE2, GL_SWIZZLE_STR_ATI);
|
|
// UV first, like this green component cannot overflow
|
|
ColorFragmentOp2(GL_MUL_ATI, GL_REG_1_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_1_ATI, GL_NONE, GL_BIAS_BIT_ATI,
|
|
GL_CON_0_ATI, GL_NONE, GL_BIAS_BIT_ATI);
|
|
ColorFragmentOp3(GL_MAD_ATI, GL_REG_2_ATI, GL_NONE, GL_4X_BIT_ATI,
|
|
GL_REG_2_ATI, GL_NONE, GL_BIAS_BIT_ATI,
|
|
GL_CON_1_ATI, GL_NONE, GL_BIAS_BIT_ATI,
|
|
GL_REG_1_ATI, GL_NONE, GL_NONE);
|
|
ColorFragmentOp2(GL_ADD_ATI, GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_0_ATI, GL_NONE, GL_NONE,
|
|
GL_REG_2_ATI, GL_NONE, GL_NONE);
|
|
EndFragmentShader();
|
|
}
|
|
|
|
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(GLenum unit) {
|
|
GLfloat tex[4 * LOOKUP_BSPLINE_RES];
|
|
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)]);
|
|
ActiveTexture(unit);
|
|
glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA16, LOOKUP_BSPLINE_RES, 0, GL_RGBA, GL_FLOAT, tex);
|
|
glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_PRIORITY, 1.0);
|
|
glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
}
|
|
|
|
static const char *bilin_filt_template =
|
|
"TEX yuv.%c, fragment.texcoord[%c], texture[%c], %s;";
|
|
|
|
#define BICUB_FILT_MAIN(textype) \
|
|
/* first y-interpolation */ \
|
|
"ADD coord, fragment.texcoord[%c].xyxy, cdelta.xyxw;" \
|
|
"TEX a.r, coord.xyxy, texture[%c], "textype";" \
|
|
"TEX a.g, coord.zwzw, texture[%c], "textype";" \
|
|
"LRP a.b, parmy.b, a.rrrr, a.gggg;" \
|
|
/* second y-interpolation */ \
|
|
"ADD coord, fragment.texcoord[%c].xyxy, cdelta.zyzw;" \
|
|
"TEX a.r, coord.xyxy, texture[%c], "textype";" \
|
|
"TEX a.g, coord.zwzw, texture[%c], "textype";" \
|
|
"LRP a.a, parmy.b, a.rrrr, a.gggg;" \
|
|
/* x-interpolation */ \
|
|
"LRP yuv.%c, parmx.b, a.bbbb, a.aaaa;"
|
|
|
|
static const char *bicub_filt_template_2D =
|
|
"MAD coord.xy, fragment.texcoord[%c], {%f, %f}, {0.5, 0.5};"
|
|
"TEX parmx, coord.x, texture[%c], 1D;"
|
|
"MUL cdelta.xz, parmx.rrgg, {-%f, 0, %f, 0};"
|
|
"TEX parmy, coord.y, texture[%c], 1D;"
|
|
"MUL cdelta.yw, parmy.rrgg, {0, -%f, 0, %f};"
|
|
BICUB_FILT_MAIN("2D");
|
|
|
|
static const char *bicub_filt_template_RECT =
|
|
"ADD coord, fragment.texcoord[%c], {0.5, 0.5};"
|
|
"TEX parmx, coord.x, texture[%c], 1D;"
|
|
"MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};"
|
|
"TEX parmy, coord.y, texture[%c], 1D;"
|
|
"MUL cdelta.yw, parmy.rrgg, {0, -1, 0, 1};"
|
|
BICUB_FILT_MAIN("RECT");
|
|
|
|
static const char *yuv_prog_template =
|
|
"PARAM ycoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM ucoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM vcoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM offsets = {%.4f, %.4f, %.4f};"
|
|
"TEMP res;"
|
|
"MAD res.rgb, yuv.rrrr, ycoef, offsets;"
|
|
"MAD res.rgb, yuv.gggg, ucoef, res;"
|
|
"MAD result.color.rgb, yuv.bbbb, vcoef, res;"
|
|
"END";
|
|
|
|
static const char *yuv_pow_prog_template =
|
|
"PARAM ycoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM ucoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM vcoef = {%.4f, %.4f, %.4f};"
|
|
"PARAM offsets = {%.4f, %.4f, %.4f};"
|
|
"PARAM gamma = {%.4f, %.4f, %.4f};"
|
|
"TEMP res;"
|
|
"MAD res.rgb, yuv.rrrr, ycoef, offsets;"
|
|
"MAD res.rgb, yuv.gggg, ucoef, res;"
|
|
"MAD_SAT res.rgb, yuv.bbbb, vcoef, res;"
|
|
"POW result.color.r, res.r, gamma.r;"
|
|
"POW result.color.g, res.g, gamma.g;"
|
|
"POW result.color.b, res.b, gamma.b;"
|
|
"END";
|
|
|
|
static const char *yuv_lookup_prog_template =
|
|
"PARAM ycoef = {%.4f, %.4f, %.4f, 0};"
|
|
"PARAM ucoef = {%.4f, %.4f, %.4f, 0};"
|
|
"PARAM vcoef = {%.4f, %.4f, %.4f, 0};"
|
|
"PARAM offsets = {%.4f, %.4f, %.4f, 0.125};"
|
|
"TEMP res;"
|
|
"MAD res, yuv.rrrr, ycoef, offsets;"
|
|
"MAD res.rgb, yuv.gggg, ucoef, res;"
|
|
"MAD res.rgb, yuv.bbbb, vcoef, res;"
|
|
"TEX result.color.r, res.raaa, texture[%c], 2D;"
|
|
"ADD res.a, res.a, 0.25;"
|
|
"TEX result.color.g, res.gaaa, texture[%c], 2D;"
|
|
"ADD res.a, res.a, 0.25;"
|
|
"TEX result.color.b, res.baaa, texture[%c], 2D;"
|
|
"END";
|
|
|
|
static const char *yuv_lookup3d_prog_template =
|
|
"TEX result.color, yuv, texture[%c], 3D;"
|
|
"END";
|
|
|
|
static void create_scaler_textures(int scaler, int *texu, char *texs) {
|
|
switch (scaler) {
|
|
case YUV_SCALER_BILIN:
|
|
break;
|
|
case YUV_SCALER_BICUB:
|
|
texs[0] = (*texu)++;
|
|
gen_spline_lookup_tex(GL_TEXTURE0 + texs[0]);
|
|
texs[0] += '0';
|
|
break;
|
|
default:
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] unknown scaler type %i\n", scaler);
|
|
}
|
|
}
|
|
|
|
static void gen_yuv2rgb_map(unsigned char *map, int size, float brightness,
|
|
float contrast, float uvcos, float uvsin,
|
|
float rgamma, float ggamma, float bgamma) {
|
|
int i, j, k;
|
|
float step = 1.0 / size;
|
|
float y, u, v, u_, v_;
|
|
float r, g, b;
|
|
v = -0.5;
|
|
for (i = -1; i <= size; i++) {
|
|
u = -0.5;
|
|
for (j = -1; j <= size; j++) {
|
|
y = -(16.0 / 255.0);
|
|
for (k = -1; k <= size; k++) {
|
|
u_ = uvcos * u + uvsin * v;
|
|
v_ = uvcos * v + uvsin * u;
|
|
r = 1.164 * y + 1.596 * v_;
|
|
g = 1.164 * y - 0.391 * u_ - 0.813 * v_;
|
|
b = 1.164 * y + 2.018 * u_ ;
|
|
r = pow(contrast * (r - 0.5) + 0.5 + brightness, 1.0 / rgamma);
|
|
g = pow(contrast * (g - 0.5) + 0.5 + brightness, 1.0 / ggamma);
|
|
b = pow(contrast * (b - 0.5) + 0.5 + brightness, 1.0 / bgamma);
|
|
if (r > 1) r = 1;
|
|
if (r < 0) r = 0;
|
|
if (g > 1) g = 1;
|
|
if (g < 0) g = 0;
|
|
if (b > 1) b = 1;
|
|
if (b < 0) b = 0;
|
|
*map++ = 255 * r;
|
|
*map++ = 255 * g;
|
|
*map++ = 255 * b;
|
|
y += (k == -1 || k == size - 1) ? step / 2 : step;
|
|
}
|
|
u += (j == -1 || j == size - 1) ? step / 2 : step;
|
|
}
|
|
v += (i == -1 || i == size - 1) ? step / 2 : step;
|
|
}
|
|
}
|
|
|
|
static void gen_gamma_map(unsigned char *map, int size, float gamma);
|
|
|
|
//! resolution of texture for gamma lookup table
|
|
#define LOOKUP_RES 512
|
|
//! resolution for 3D yuv->rgb conversion lookup table
|
|
#define LOOKUP_3DRES 32
|
|
static void create_conv_textures(int conv, int *texu, char *texs,
|
|
float brightness, float contrast, float uvcos, float uvsin,
|
|
float rgamma, float ggamma, float bgamma) {
|
|
unsigned char *lookup_data = NULL;
|
|
switch (conv) {
|
|
case YUV_CONVERSION_FRAGMENT:
|
|
case YUV_CONVERSION_FRAGMENT_POW:
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP:
|
|
texs[0] = (*texu)++;
|
|
ActiveTexture(GL_TEXTURE0 + texs[0]);
|
|
lookup_data = malloc(4 * LOOKUP_RES);
|
|
gen_gamma_map(lookup_data, LOOKUP_RES, rgamma);
|
|
gen_gamma_map(&lookup_data[LOOKUP_RES], LOOKUP_RES, ggamma);
|
|
gen_gamma_map(&lookup_data[2 * LOOKUP_RES], LOOKUP_RES, bgamma);
|
|
glCreateClearTex(GL_TEXTURE_2D, GL_LUMINANCE8, GL_LINEAR,
|
|
LOOKUP_RES, 4, 0);
|
|
glUploadTex(GL_TEXTURE_2D, GL_LUMINANCE, GL_UNSIGNED_BYTE, lookup_data,
|
|
LOOKUP_RES, 0, 0, LOOKUP_RES, 4, 0);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
texs[0] += '0';
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
|
|
{
|
|
int sz = LOOKUP_3DRES + 2; // texture size including borders
|
|
if (!TexImage3D) {
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] Missing 3D texture function!\n");
|
|
break;
|
|
}
|
|
texs[0] = (*texu)++;
|
|
ActiveTexture(GL_TEXTURE0 + texs[0]);
|
|
lookup_data = malloc(3 * sz * sz * sz);
|
|
gen_yuv2rgb_map(lookup_data, LOOKUP_3DRES, brightness, contrast,
|
|
uvcos, uvsin, rgamma, ggamma, bgamma);
|
|
glAdjustAlignment(sz);
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
|
TexImage3D(GL_TEXTURE_3D, 0, 3, sz, sz, sz, 1,
|
|
GL_RGB, GL_UNSIGNED_BYTE, lookup_data);
|
|
glTexParameterf(GL_TEXTURE_3D, GL_TEXTURE_PRIORITY, 1.0);
|
|
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP);
|
|
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP);
|
|
glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
texs[0] += '0';
|
|
}
|
|
break;
|
|
default:
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] unknown conversion type %i\n", conv);
|
|
}
|
|
if (lookup_data)
|
|
free(lookup_data);
|
|
}
|
|
|
|
static void add_scaler(int scaler, char **prog_pos, int *remain, char *texs,
|
|
char in_tex, char out_comp, int rect, int texw, int texh) {
|
|
switch (scaler) {
|
|
case YUV_SCALER_BILIN:
|
|
snprintf(*prog_pos, *remain, bilin_filt_template, out_comp, in_tex,
|
|
in_tex, rect ? "RECT" : "2D");
|
|
break;
|
|
case YUV_SCALER_BICUB:
|
|
if (rect)
|
|
snprintf(*prog_pos, *remain, bicub_filt_template_RECT,
|
|
in_tex, texs[0], texs[0],
|
|
in_tex, in_tex, in_tex, in_tex, in_tex, in_tex, out_comp);
|
|
else
|
|
snprintf(*prog_pos, *remain, bicub_filt_template_2D,
|
|
in_tex, (float)texw, (float)texh,
|
|
texs[0], (float)1.0 / texw, (float)1.0 / texw,
|
|
texs[0], (float)1.0 / texh, (float)1.0 / texh,
|
|
in_tex, in_tex, in_tex, in_tex, in_tex, in_tex, out_comp);
|
|
break;
|
|
}
|
|
*remain -= strlen(*prog_pos);
|
|
*prog_pos += strlen(*prog_pos);
|
|
}
|
|
|
|
static const struct {
|
|
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}
|
|
};
|
|
|
|
int loadGPUProgram(GLenum target, char *prog) {
|
|
int i;
|
|
GLint cur = 0, max = 0, err = 0;
|
|
if (!ProgramString) {
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] Missing GPU program function\n");
|
|
return 0;
|
|
}
|
|
ProgramString(target, GL_PROGRAM_FORMAT_ASCII, strlen(prog), prog);
|
|
glGetIntegerv(GL_PROGRAM_ERROR_POSITION, &err);
|
|
if (err != -1) {
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] Error compiling fragment program, make sure your card supports\n"
|
|
"[gl] GL_ARB_fragment_program (use glxinfo to check).\n"
|
|
"[gl] Error message:\n %s at %.10s\n",
|
|
glGetString(GL_PROGRAM_ERROR_STRING), &prog[err]);
|
|
return 0;
|
|
}
|
|
if (!GetProgramiv || !mp_msg_test(MSGT_VO, MSGL_V))
|
|
return 1;
|
|
mp_msg(MSGT_VO, MSGL_V, "[gl] Program statistics:\n");
|
|
for (i = 0; progstats[i].name; i++) {
|
|
GetProgramiv(target, progstats[i].cur, &cur);
|
|
GetProgramiv(target, progstats[i].max, &max);
|
|
mp_msg(MSGT_VO, MSGL_V, "[gl] %s: %i/%i\n", progstats[i].name, cur, max);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* \brief setup a fragment program that will do YUV->RGB conversion
|
|
* \param brightness brightness adjustment offset
|
|
* \param contrast contrast adjustment factor
|
|
* \param uvcos used for saturation and hue adjustment
|
|
* \param uvsin used for saturation and hue adjustment
|
|
* \param lookup use fragment program that uses texture unit 4 to
|
|
* do additional conversion via lookup.
|
|
*/
|
|
static void glSetupYUVFragprog(float brightness, float contrast,
|
|
float uvcos, float uvsin, float rgamma,
|
|
float ggamma, float bgamma, int type, int rect,
|
|
int texw, int texh) {
|
|
char yuv_prog[4000] =
|
|
"!!ARBfp1.0\n"
|
|
"OPTION ARB_precision_hint_fastest;"
|
|
// all scaler variables must go here so they aren't defined
|
|
// multiple times when the same scaler is used more than once
|
|
"TEMP coord, cdelta, parmx, parmy, a, yuv;";
|
|
int prog_remain = sizeof(yuv_prog) - strlen(yuv_prog);
|
|
char *prog_pos = &yuv_prog[strlen(yuv_prog)];
|
|
int cur_texu = 3;
|
|
char lum_scale_texs[1];
|
|
char chrom_scale_texs[1];
|
|
char conv_texs[1];
|
|
GLint i;
|
|
// this is the conversion matrix, with y, u, v factors
|
|
// for red, green, blue and the constant offsets
|
|
float ry, ru, rv, rc;
|
|
float gy, gu, gv, gc;
|
|
float by, bu, bv, bc;
|
|
create_scaler_textures(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(YUV_CHROM_SCALER(type), &cur_texu, chrom_scale_texs);
|
|
create_conv_textures(YUV_CONVERSION(type), &cur_texu, conv_texs,
|
|
brightness, contrast, uvcos, uvsin, rgamma, ggamma, bgamma);
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS, &i);
|
|
if (i < cur_texu)
|
|
mp_msg(MSGT_VO, MSGL_ERR,
|
|
"[gl] %i texture units needed for this type of YUV fragment support (found %i)\n",
|
|
cur_texu, i);
|
|
if (!ProgramString) {
|
|
mp_msg(MSGT_VO, MSGL_FATAL, "[gl] ProgramString function missing!\n");
|
|
return;
|
|
}
|
|
add_scaler(YUV_LUM_SCALER(type), &prog_pos, &prog_remain, lum_scale_texs,
|
|
'0', 'r', rect, texw, texh);
|
|
add_scaler(YUV_CHROM_SCALER(type), &prog_pos, &prog_remain, chrom_scale_texs,
|
|
'1', 'g', rect, texw / 2, texh / 2);
|
|
add_scaler(YUV_CHROM_SCALER(type), &prog_pos, &prog_remain, chrom_scale_texs,
|
|
'2', 'b', rect, texw / 2, texh / 2);
|
|
ry = 1.164 * contrast;
|
|
gy = 1.164 * contrast;
|
|
by = 1.164 * contrast;
|
|
ru = 0 * uvcos + 1.596 * uvsin;
|
|
rv = 0 * uvsin + 1.596 * uvcos;
|
|
gu = -0.391 * uvcos + -0.813 * uvsin;
|
|
gv = -0.391 * uvsin + -0.813 * uvcos;
|
|
bu = 2.018 * uvcos + 0 * uvsin;
|
|
bv = 2.018 * uvsin + 0 * uvcos;
|
|
rc = (-16 * ry + (-128) * ru + (-128) * rv) / 255.0 + brightness;
|
|
gc = (-16 * gy + (-128) * gu + (-128) * gv) / 255.0 + brightness;
|
|
bc = (-16 * by + (-128) * bu + (-128) * bv) / 255.0 + brightness;
|
|
// these "center" contrast control so that e.g. a contrast of 0
|
|
// leads to a grey image, not a black one
|
|
rc += 0.5 - contrast / 2.0;
|
|
gc += 0.5 - contrast / 2.0;
|
|
bc += 0.5 - contrast / 2.0;
|
|
switch (YUV_CONVERSION(type)) {
|
|
case YUV_CONVERSION_FRAGMENT:
|
|
snprintf(prog_pos, prog_remain, yuv_prog_template,
|
|
ry, gy, by, ru, gu, bu, rv, gv, bv, rc, gc, bc);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_POW:
|
|
snprintf(prog_pos, prog_remain, yuv_pow_prog_template,
|
|
ry, gy, by, ru, gu, bu, rv, gv, bv, rc, gc, bc,
|
|
(float)1.0 / rgamma, (float)1.0 / bgamma, (float)1.0 / bgamma);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP:
|
|
snprintf(prog_pos, prog_remain, yuv_lookup_prog_template,
|
|
ry, gy, by, ru, gu, bu, rv, gv, bv, rc, gc, bc,
|
|
conv_texs[0], conv_texs[0], conv_texs[0]);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
|
|
snprintf(prog_pos, prog_remain, yuv_lookup3d_prog_template, conv_texs[0]);
|
|
break;
|
|
default:
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] unknown conversion type %i\n", YUV_CONVERSION(type));
|
|
break;
|
|
}
|
|
mp_msg(MSGT_VO, MSGL_V, "[gl] generated fragment program:\n%s\n", yuv_prog);
|
|
loadGPUProgram(GL_FRAGMENT_PROGRAM, yuv_prog);
|
|
}
|
|
|
|
/**
|
|
* \brief little helper function to create a lookup table for gamma
|
|
* \param map buffer to create map into
|
|
* \param size size of buffer
|
|
* \param gamma gamma value
|
|
*/
|
|
static void gen_gamma_map(unsigned char *map, int size, float gamma) {
|
|
int i;
|
|
gamma = 1.0 / gamma;
|
|
for (i = 0; i < size; i++) {
|
|
float tmp = (float)i / (size - 1.0);
|
|
tmp = pow(tmp, gamma);
|
|
if (tmp > 1.0) tmp = 1.0;
|
|
if (tmp < 0.0) tmp = 0.0;
|
|
map[i] = 255 * tmp;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* \brief setup YUV->RGB conversion
|
|
* \param target texture target for Y, U and V textures (e.g. GL_TEXTURE_2D)
|
|
* \param type YUV conversion type
|
|
* \param brightness brightness adjustment offset
|
|
* \param contrast contrast adjustment factor
|
|
* \param hue hue adjustment angle
|
|
* \param saturation saturation adjustment factor
|
|
* \param rgamma gamma value for red channel
|
|
* \param ggamma gamma value for green channel
|
|
* \param bgamma gamma value for blue channel
|
|
* \ingroup glconversion
|
|
*/
|
|
void glSetupYUVConversion(GLenum target, int type,
|
|
float brightness, float contrast,
|
|
float hue, float saturation,
|
|
float rgamma, float ggamma, float bgamma,
|
|
int texw, int texh) {
|
|
float uvcos = saturation * cos(hue);
|
|
float uvsin = saturation * sin(hue);
|
|
switch (YUV_CONVERSION(type)) {
|
|
case YUV_CONVERSION_COMBINERS:
|
|
glSetupYUVCombiners(uvcos, uvsin);
|
|
break;
|
|
case YUV_CONVERSION_COMBINERS_ATI:
|
|
glSetupYUVCombinersATI(uvcos, uvsin);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP:
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
|
|
case YUV_CONVERSION_FRAGMENT:
|
|
case YUV_CONVERSION_FRAGMENT_POW:
|
|
glSetupYUVFragprog(brightness, contrast, uvcos, uvsin,
|
|
rgamma, ggamma, bgamma, type,
|
|
target == GL_TEXTURE_RECTANGLE,
|
|
texw, texh);
|
|
break;
|
|
default:
|
|
mp_msg(MSGT_VO, MSGL_ERR, "[gl] unknown conversion type %i\n", YUV_CONVERSION(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
|
|
*/
|
|
void glEnableYUVConversion(GLenum target, int type) {
|
|
if (type <= 0) return;
|
|
switch (YUV_CONVERSION(type)) {
|
|
case YUV_CONVERSION_COMBINERS:
|
|
ActiveTexture(GL_TEXTURE1);
|
|
glEnable(target);
|
|
ActiveTexture(GL_TEXTURE2);
|
|
glEnable(target);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
glEnable(GL_REGISTER_COMBINERS_NV);
|
|
break;
|
|
case YUV_CONVERSION_COMBINERS_ATI:
|
|
ActiveTexture(GL_TEXTURE1);
|
|
glEnable(target);
|
|
ActiveTexture(GL_TEXTURE2);
|
|
glEnable(target);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
glEnable(GL_FRAGMENT_SHADER_ATI);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP:
|
|
case YUV_CONVERSION_FRAGMENT_POW:
|
|
case YUV_CONVERSION_FRAGMENT:
|
|
glEnable(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
|
|
*/
|
|
void glDisableYUVConversion(GLenum target, int type) {
|
|
if (type <= 0) return;
|
|
switch (YUV_CONVERSION(type)) {
|
|
case YUV_CONVERSION_COMBINERS:
|
|
ActiveTexture(GL_TEXTURE1);
|
|
glDisable(target);
|
|
ActiveTexture(GL_TEXTURE2);
|
|
glDisable(target);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
glDisable(GL_REGISTER_COMBINERS_NV);
|
|
break;
|
|
case YUV_CONVERSION_COMBINERS_ATI:
|
|
ActiveTexture(GL_TEXTURE1);
|
|
glDisable(target);
|
|
ActiveTexture(GL_TEXTURE2);
|
|
glDisable(target);
|
|
ActiveTexture(GL_TEXTURE0);
|
|
glDisable(GL_FRAGMENT_SHADER_ATI);
|
|
break;
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP3D:
|
|
case YUV_CONVERSION_FRAGMENT_LOOKUP:
|
|
case YUV_CONVERSION_FRAGMENT_POW:
|
|
case YUV_CONVERSION_FRAGMENT:
|
|
glDisable(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 set, also draw the textures from units 1 and 2
|
|
* \param flip flip the texture upside down
|
|
* \ingroup gltexture
|
|
*/
|
|
void glDrawTex(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) {
|
|
GLfloat tx2 = tx / 2, ty2 = ty / 2, tw2 = tw / 2, th2 = th / 2;
|
|
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;
|
|
}
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(tx, ty);
|
|
if (is_yv12) {
|
|
MultiTexCoord2f(GL_TEXTURE1, tx2, ty2);
|
|
MultiTexCoord2f(GL_TEXTURE2, tx2, ty2);
|
|
}
|
|
glVertex2f(x, y);
|
|
glTexCoord2f(tx, ty + th);
|
|
if (is_yv12) {
|
|
MultiTexCoord2f(GL_TEXTURE1, tx2, ty2 + th2);
|
|
MultiTexCoord2f(GL_TEXTURE2, tx2, ty2 + th2);
|
|
}
|
|
glVertex2f(x, y + h);
|
|
glTexCoord2f(tx + tw, ty + th);
|
|
if (is_yv12) {
|
|
MultiTexCoord2f(GL_TEXTURE1, tx2 + tw2, ty2 + th2);
|
|
MultiTexCoord2f(GL_TEXTURE2, tx2 + tw2, ty2 + th2);
|
|
}
|
|
glVertex2f(x + w, y + h);
|
|
glTexCoord2f(tx + tw, ty);
|
|
if (is_yv12) {
|
|
MultiTexCoord2f(GL_TEXTURE1, tx2 + tw2, ty2);
|
|
MultiTexCoord2f(GL_TEXTURE2, tx2 + tw2, ty2);
|
|
}
|
|
glVertex2f(x + w, y);
|
|
glEnd();
|
|
}
|
|
|
|
#ifdef GL_WIN32
|
|
#include "w32_common.h"
|
|
/**
|
|
* \brief little helper since wglGetProcAddress definition does not fit our
|
|
* getProcAddress
|
|
* \param procName name of function to look up
|
|
* \return function pointer returned by wglGetProcAddress
|
|
*/
|
|
static void *w32gpa(const GLubyte *procName) {
|
|
return wglGetProcAddress(procName);
|
|
}
|
|
|
|
int setGlWindow(int *vinfo, HGLRC *context, HWND win)
|
|
{
|
|
int new_vinfo;
|
|
HDC windc = GetDC(win);
|
|
HGLRC new_context = 0;
|
|
int keep_context = 0;
|
|
|
|
// should only be needed when keeping context, but not doing glFinish
|
|
// can cause flickering even when we do not keep it.
|
|
if (*context)
|
|
glFinish();
|
|
new_vinfo = GetPixelFormat(windc);
|
|
if (*context && *vinfo && new_vinfo && *vinfo == new_vinfo) {
|
|
// we can keep the wglContext
|
|
new_context = *context;
|
|
keep_context = 1;
|
|
} else {
|
|
// create a context
|
|
new_context = wglCreateContext(windc);
|
|
if (!new_context) {
|
|
mp_msg(MSGT_VO, MSGL_FATAL, "[gl] Could not create GL context!\n");
|
|
return SET_WINDOW_FAILED;
|
|
}
|
|
}
|
|
|
|
// set context
|
|
if (!wglMakeCurrent(windc, new_context)) {
|
|
mp_msg (MSGT_VO, MSGL_FATAL, "[gl] Could not set GL context!\n");
|
|
if (!keep_context) {
|
|
wglDeleteContext(new_context);
|
|
}
|
|
return SET_WINDOW_FAILED;
|
|
}
|
|
|
|
// set new values
|
|
vo_window = win;
|
|
vo_hdc = windc;
|
|
{
|
|
RECT rect;
|
|
GetClientRect(win, &rect);
|
|
vo_dwidth = rect.right;
|
|
vo_dheight = rect.bottom;
|
|
}
|
|
if (!keep_context) {
|
|
if (*context)
|
|
wglDeleteContext(*context);
|
|
*context = new_context;
|
|
*vinfo = new_vinfo;
|
|
getFunctions(w32gpa, NULL);
|
|
|
|
// and inform that reinit is neccessary
|
|
return SET_WINDOW_REINIT;
|
|
}
|
|
return SET_WINDOW_OK;
|
|
}
|
|
|
|
void releaseGlContext(int *vinfo, HGLRC *context) {
|
|
*vinfo = 0;
|
|
if (*context) {
|
|
wglMakeCurrent(0, 0);
|
|
wglDeleteContext(*context);
|
|
}
|
|
*context = 0;
|
|
}
|
|
|
|
void swapGlBuffers() {
|
|
SwapBuffers(vo_hdc);
|
|
}
|
|
#else
|
|
#ifdef HAVE_LIBDL
|
|
#include <dlfcn.h>
|
|
#endif
|
|
#include "x11_common.h"
|
|
/**
|
|
* \brief find address of a linked function
|
|
* \param s name of function to find
|
|
* \return address of function or NULL if not found
|
|
*
|
|
* Copied from xine
|
|
*/
|
|
static void *getdladdr(const char *s) {
|
|
#ifdef HAVE_LIBDL
|
|
#if defined(__sun) || defined(__sgi)
|
|
static void *handle = NULL;
|
|
if (!handle)
|
|
handle = dlopen(NULL, RTLD_LAZY);
|
|
return dlsym(handle, s);
|
|
#else
|
|
return dlsym(0, s);
|
|
#endif
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* \brief Returns the XVisualInfo associated with Window win.
|
|
* \param win Window whose XVisualInfo is returne.
|
|
* \return XVisualInfo of the window. Caller must use XFree to free it.
|
|
*/
|
|
static XVisualInfo *getWindowVisualInfo(Window win) {
|
|
XWindowAttributes xw_attr;
|
|
XVisualInfo vinfo_template;
|
|
int tmp;
|
|
XGetWindowAttributes(mDisplay, win, &xw_attr);
|
|
vinfo_template.visualid = XVisualIDFromVisual(xw_attr.visual);
|
|
return XGetVisualInfo(mDisplay, VisualIDMask, &vinfo_template, &tmp);
|
|
}
|
|
|
|
/**
|
|
* \brief Changes the window in which video is displayed.
|
|
* If possible only transfers the context to the new window, otherwise
|
|
* creates a new one, which must be initialized by the caller.
|
|
* \param vinfo Currently used visual.
|
|
* \param context Currently used context.
|
|
* \param win window that should be used for drawing.
|
|
* \return one of SET_WINDOW_FAILED, SET_WINDOW_OK or SET_WINDOW_REINIT.
|
|
* In case of SET_WINDOW_REINIT the context could not be transfered
|
|
* and the caller must initialize it correctly.
|
|
* \ingroup glcontext
|
|
*/
|
|
int setGlWindow(XVisualInfo **vinfo, GLXContext *context, Window win)
|
|
{
|
|
XVisualInfo *new_vinfo;
|
|
GLXContext new_context = NULL;
|
|
int keep_context = 0;
|
|
|
|
// should only be needed when keeping context, but not doing glFinish
|
|
// can cause flickering even when we do not keep it.
|
|
if (*context)
|
|
glFinish();
|
|
new_vinfo = getWindowVisualInfo(win);
|
|
if (*context && *vinfo && new_vinfo &&
|
|
(*vinfo)->visualid == new_vinfo->visualid) {
|
|
// we can keep the GLXContext
|
|
new_context = *context;
|
|
XFree(new_vinfo);
|
|
new_vinfo = *vinfo;
|
|
keep_context = 1;
|
|
} else {
|
|
// create a context
|
|
new_context = glXCreateContext(mDisplay, new_vinfo, NULL, True);
|
|
if (!new_context) {
|
|
mp_msg(MSGT_VO, MSGL_FATAL, "[gl] Could not create GLX context!\n");
|
|
XFree(new_vinfo);
|
|
return SET_WINDOW_FAILED;
|
|
}
|
|
}
|
|
|
|
// set context
|
|
if (!glXMakeCurrent(mDisplay, vo_window, new_context)) {
|
|
mp_msg (MSGT_VO, MSGL_FATAL, "[gl] Could not set GLX context!\n");
|
|
if (!keep_context) {
|
|
glXDestroyContext (mDisplay, new_context);
|
|
XFree(new_vinfo);
|
|
}
|
|
return SET_WINDOW_FAILED;
|
|
}
|
|
|
|
// set new values
|
|
vo_window = win;
|
|
{
|
|
Window root;
|
|
int tmp;
|
|
unsigned utmp;
|
|
XGetGeometry(mDisplay, vo_window, &root, &tmp, &tmp,
|
|
(unsigned *)&vo_dwidth, (unsigned *)&vo_dheight, &utmp, &utmp);
|
|
}
|
|
if (!keep_context) {
|
|
void *(*getProcAddress)(const GLubyte *);
|
|
const char *(*glXExtStr)(Display *, int);
|
|
if (*context)
|
|
glXDestroyContext(mDisplay, *context);
|
|
*context = new_context;
|
|
if (*vinfo)
|
|
XFree(*vinfo);
|
|
*vinfo = new_vinfo;
|
|
getProcAddress = getdladdr("glXGetProcAddress");
|
|
if (!getProcAddress)
|
|
getProcAddress = getdladdr("glXGetProcAddressARB");
|
|
if (!getProcAddress)
|
|
getProcAddress = (void *)getdladdr;
|
|
glXExtStr = getdladdr("glXQueryExtensionsString");
|
|
getFunctions(getProcAddress, !glXExtStr ? NULL :
|
|
glXExtStr(mDisplay, DefaultScreen(mDisplay)));
|
|
|
|
// and inform that reinit is neccessary
|
|
return SET_WINDOW_REINIT;
|
|
}
|
|
return SET_WINDOW_OK;
|
|
}
|
|
|
|
/**
|
|
* \brief free the VisualInfo and GLXContext of an OpenGL context.
|
|
* \ingroup glcontext
|
|
*/
|
|
void releaseGlContext(XVisualInfo **vinfo, GLXContext *context) {
|
|
if (*vinfo)
|
|
XFree(*vinfo);
|
|
*vinfo = NULL;
|
|
if (*context)
|
|
{
|
|
glFinish();
|
|
glXMakeCurrent(mDisplay, None, NULL);
|
|
glXDestroyContext(mDisplay, *context);
|
|
}
|
|
*context = 0;
|
|
}
|
|
|
|
void swapGlBuffers(void) {
|
|
glXSwapBuffers(mDisplay, vo_window);
|
|
}
|
|
#endif
|
|
|