gl_common: move things used by vo_opengl_old.c only to vo_opengl_old.c

Having this in gl_common is confusing.

3 files changed, 1241 insertions, 1244 deletions

diff --git a/video/out/gl_common.c b/video/out/gl_common.c
index c2a9c88b28..dc249f4a73 100644
--- a/video/out/gl_common.c
+++ b/video/out/gl_common.c
@@ -43,7 +43,6 @@
 #include "talloc.h"
 #include "gl_common.h"
 #include "aspect.h"
-#include "pnm_loader.h"
 #include "core/options.h"
 #include "sub/sub.h"
 #include "bitmap_packer.h"
@@ -101,133 +100,6 @@ void glAdjustAlignment(GL *gl, int stride)
     gl->PixelStorei(GL_PACK_ALIGNMENT, gl_alignment);
 }
 
-//! 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
- */
-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_RGB15:
-        *gl_format = GL_RGBA;
-        *gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
-        break;
-    case IMGFMT_RGB16:
-        *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_BGR15:
-        *gl_format = GL_BGRA;
-        *gl_type = GL_UNSIGNED_SHORT_1_5_5_5_REV;
-        break;
-    case IMGFMT_BGR16:
-        *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;
-}
-
 struct feature {
     int id;
     const char *name;
@@ -719,103 +591,6 @@ static void getFunctions(GL *gl, void *(*getProcAddress)(const GLubyte *),
 }
 
 /**
- * \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
- */
-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
- */
-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 return the number of bytes per pixel for the given format
  * \param format OpenGL format
  * \param type OpenGL type
@@ -946,870 +721,6 @@ void glDownloadTex(GL *gl, GLenum target, GLenum format, GLenum type,
     gl->GetTexImage(target, 0, format, type, dataptr);
 }
 
-/**
- * \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(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_msg(MSGT_VO, MSGL_ERR,
-               "[gl] 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_msg(MSGT_VO, MSGL_FATAL, "[gl] Combiner (ATI) functions missing!\n");
-            return;
-        }
-        gl->GetIntegerv(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);
-        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_msg(MSGT_VO, MSGL_DBG2, "[gl] generated fragment program:\n%s\n",
-               buffer);
-        loadGPUProgram(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 (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(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_msg(MSGT_VO, MSGL_ERR, "[gl] 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(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_msg(MSGT_VO, MSGL_ERR, "[gl] 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_msg(MSGT_VO, MSGL_ERR, "[gl] 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
- */
-int loadGPUProgram(GL *gl, GLenum target, char *prog)
-{
-    int i;
-    GLint cur = 0, max = 0, err = 0;
-    if (!gl->ProgramString) {
-        mp_msg(MSGT_VO, MSGL_ERR, "[gl] 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_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",
-               gl->GetString(GL_PROGRAM_ERROR_STRING), &prog[err]);
-        return 0;
-    }
-    if (!gl->GetProgramivARB || !mp_msg_test(MSGT_VO, MSGL_DBG2))
-        return 1;
-    mp_msg(MSGT_VO, MSGL_V, "[gl] 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_msg(MSGT_VO, MSGL_V, "[gl]   %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(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(gl, params, &cur_texu, conv_texs);
-    create_scaler_textures(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(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 <