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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [compile/] [pr34091.c] - Rev 378
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typedef unsigned int GLenum; typedef unsigned char GLboolean; typedef int GLint; typedef unsigned short GLushort; typedef unsigned int GLuint; typedef float GLfloat; typedef GLushort GLchan; struct gl_texture_image; typedef struct __GLcontextRec GLcontext; typedef void (*FetchTexelFuncC) (const struct gl_texture_image * texImage, GLint col, GLint row, GLint img, GLchan * texelOut); struct gl_texture_format { }; struct gl_texture_image { GLenum _BaseFormat; GLboolean _IsPowerOfTwo; FetchTexelFuncC FetchTexelc; }; struct gl_texture_object { GLenum Target; GLenum WrapS; GLenum MinFilter; GLenum MagFilter; GLint BaseLevel; GLint _MaxLevel; struct gl_texture_image *Image[6][12]; }; enum _format { MESA_FORMAT_RGBA_DXT3, MESA_FORMAT_RGBA_DXT5, MESA_FORMAT_RGBA, MESA_FORMAT_RGB, MESA_FORMAT_ALPHA, MESA_FORMAT_LUMINANCE, }; typedef void (*texture_sample_func) (GLcontext * ctx, const struct gl_texture_object * tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4]); lerp_2d (GLfloat a, GLfloat b, GLfloat v00, GLfloat v10, GLfloat v01, GLfloat v11) { const GLfloat temp0 = ((v00) + (a) * ((v10) - (v00))); const GLfloat temp1 = ((v01) + (a) * ((v11) - (v01))); return ((temp0) + (b) * ((temp1) - (temp0))); } static __inline__ void lerp_rgba (GLchan result[4], GLfloat t, const GLchan a[4], const GLchan b[4]) { result[0] = (GLchan) (((a[0]) + (t) * ((b[0]) - (a[0]))) + 0.5); result[1] = (GLchan) (((a[1]) + (t) * ((b[1]) - (a[1]))) + 0.5); result[2] = (GLchan) (((a[2]) + (t) * ((b[2]) - (a[2]))) + 0.5); } static __inline__ void lerp_rgba_2d (GLchan result[4], GLfloat a, GLfloat b, const GLchan t00[4], const GLchan t10[4], const GLchan t01[4], const GLchan t11[4]) { result[0] = (GLchan) (lerp_2d (a, b, t00[0], t10[0], t01[0], t11[0]) + 0.5); result[1] = (GLchan) (lerp_2d (a, b, t00[1], t10[1], t01[1], t11[1]) + 0.5); result[2] = (GLchan) (lerp_2d (a, b, t00[2], t10[2], t01[2], t11[2]) + 0.5); } static __inline__ void sample_2d_linear_repeat (GLcontext * ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[]) { GLint i0, j0, i1, j1; GLfloat a, b; GLchan t00[4], t10[4], t01[4], t11[4]; { }; img->FetchTexelc (img, i1, j1, 0, t11); lerp_rgba_2d (rgba, a, b, t00, t10, t01, t11); } sample_2d_nearest_mipmap_linear (GLcontext * ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4]) { GLuint i; GLint level = linear_mipmap_level (tObj, lambda[i]); sample_2d_nearest (ctx, tObj, tObj->Image[0][tObj->_MaxLevel], texcoord[i], rgba[i]); GLchan t0[4], t1[4]; sample_2d_nearest (ctx, tObj, tObj->Image[0][level], texcoord[i], t0); sample_2d_nearest (ctx, tObj, tObj->Image[0][level + 1], texcoord[i], t1); } static void sample_2d_linear_mipmap_linear_repeat (GLcontext * ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4]) { GLuint i; for (i = 0; i < n; i++) { GLint level = linear_mipmap_level (tObj, lambda[i]); if (level >= tObj->_MaxLevel) { GLchan t0[4], t1[4]; const GLfloat f = ((lambda[i]) - ifloor (lambda[i])); sample_2d_linear_repeat (ctx, tObj, tObj->Image[0][level], texcoord[i], t0); sample_2d_linear_repeat (ctx, tObj, tObj->Image[0][level + 1], texcoord[i], t1); lerp_rgba (rgba[i], f, t0, t1); } } } static void sample_lambda_2d (GLcontext * ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4]) { const struct gl_texture_image *tImg = tObj->Image[0][tObj->BaseLevel]; GLuint minStart, minEnd; GLuint magStart, magEnd; const GLboolean repeatNoBorderPOT = (tObj->WrapS == 0x2901) && (tImg->_BaseFormat != 0x1900) && tImg->_IsPowerOfTwo; compute_min_mag_ranges (tObj, n, lambda, &minStart, &minEnd, &magStart, &magEnd); if (minStart < minEnd) { const GLuint m = minEnd - minStart; switch (tObj->MinFilter) { case 0x2600: if (repeatNoBorderPOT) { case MESA_FORMAT_RGB: opt_sample_rgb_2d (ctx, tObj, m, texcoords + minStart, ((void *) 0), rgba + minStart); case MESA_FORMAT_RGBA: opt_sample_rgba_2d (ctx, tObj, m, texcoords + minStart, ((void *) 0), rgba + minStart); } { sample_nearest_2d (ctx, tObj, m, texcoords + minStart, ((void *) 0), rgba + minStart); } break; sample_2d_nearest_mipmap_linear (ctx, tObj, m, texcoords + minStart, lambda + minStart, rgba + minStart); case 0x2703: if (repeatNoBorderPOT) sample_2d_linear_mipmap_linear_repeat (ctx, tObj, m, texcoords + minStart, lambda + minStart, rgba + minStart); } switch (tObj->MagFilter) { case MESA_FORMAT_RGB: opt_sample_rgb_2d (ctx, tObj, m, texcoords + magStart, ((void *) 0), rgba + magStart); opt_sample_rgba_2d (ctx, tObj, m, texcoords + magStart, ((void *) 0), rgba + magStart); sample_nearest_2d (ctx, tObj, m, texcoords + magStart, ((void *) 0), rgba + magStart); } } } texture_sample_func _swrast_choose_texture_sample_func (const struct gl_texture_object *t) { switch (t->Target) { case 0x0DE0: return &sample_lambda_2d; } }
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