diff options
Diffstat (limited to 'src/mesa/pipe/softpipe/g_tile_fs.c')
| -rw-r--r-- | src/mesa/pipe/softpipe/g_tile_fs.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/mesa/pipe/softpipe/g_tile_fs.c b/src/mesa/pipe/softpipe/g_tile_fs.c deleted file mode 100644 index 4c5e6efaed..0000000000 --- a/src/mesa/pipe/softpipe/g_tile_fs.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.5 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* Vertices are just an array of floats, with all the attributes - * packed. We currently assume a layout like: - * - * attr[0][0..3] - window position - * attr[1..n][0..3] - remaining attributes. - * - * Attributes are assumed to be 4 floats wide but are packed so that - * all the enabled attributes run contiguously. - */ - -#include "glheader.h" -#include "g_context.h" -#include "g_headers.h" -#include "g_tile.h" - -struct exec_machine { - const struct setup_coefficient *coef; - - GLfloat attr[FRAG_ATTRIB_MAX][4][QUAD_SIZE]; -}; - - -/** - * Compute quad's attributes values, as constants (GL_FLAT shading). - */ -static INLINE void cinterp( struct exec_machine *exec, - GLuint attrib, - GLuint i ) -{ - GLuint j; - - for (j = 0; j < QUAD_SIZE; j++) { - exec->attr[attrib][i][j] = exec->coef[attrib].a0[i]; - } -} - - -/** - * Compute quad's attribute values by linear interpolation. - * - * Push into the fp: - * - * INPUT[attr] = MAD COEF_A0[attr], COEF_DADX[attr], INPUT_WPOS.xxxx - * INPUT[attr] = MAD INPUT[attr], COEF_DADY[attr], INPUT_WPOS.yyyy - */ -static INLINE void linterp( struct exec_machine *exec, - GLuint attrib, - GLuint i ) -{ - GLuint j; - - for (j = 0; j < QUAD_SIZE; j++) { - const GLfloat x = exec->attr[FRAG_ATTRIB_WPOS][0][j]; - const GLfloat y = exec->attr[FRAG_ATTRIB_WPOS][1][j]; - exec->attr[attrib][i][j] = (exec->coef[attrib].a0[i] + - exec->coef[attrib].dadx[i] * x + - exec->coef[attrib].dady[i] * y); - } -} - - -/** - * Compute quad's attribute values by linear interpolation with - * perspective correction. - * - * Push into the fp: - * - * INPUT[attr] = MAD COEF_A0[attr], COEF_DADX[attr], INPUT_WPOS.xxxx - * INPUT[attr] = MAD INPUT[attr], COEF_DADY[attr], INPUT_WPOS.yyyy - * INPUT[attr] = MUL INPUT[attr], INPUT_WPOS.wwww - * - * (Or should that be 1/w ???) - */ -static INLINE void pinterp( struct exec_machine *exec, - GLuint attrib, - GLuint i ) -{ - GLuint j; - - for (j = 0; j < QUAD_SIZE; j++) { - const GLfloat x = exec->attr[FRAG_ATTRIB_WPOS][0][j]; - const GLfloat y = exec->attr[FRAG_ATTRIB_WPOS][1][j]; - const GLfloat invW = exec->attr[FRAG_ATTRIB_WPOS][3][j]; - exec->attr[attrib][i][j] = ((exec->coef[attrib].a0[i] + - exec->coef[attrib].dadx[i] * x + - exec->coef[attrib].dady[i] * y) * invW); - } -} - - - -/* This should be done by the fragment shader execution unit (code - * generated from the decl instructions). Do it here for now. - */ -void quad_shade( struct generic_context *generic, - struct quad_header *quad ) -{ - struct exec_machine exec; - GLfloat fx = quad->x0; - GLfloat fy = quad->y0; - GLuint i, j; - - exec.coef = quad->coef; - - /* Position: - */ - exec.attr[FRAG_ATTRIB_WPOS][0][0] = fx; - exec.attr[FRAG_ATTRIB_WPOS][0][1] = fx + 1.0; - exec.attr[FRAG_ATTRIB_WPOS][0][2] = fx; - exec.attr[FRAG_ATTRIB_WPOS][0][3] = fx + 1.0; - - exec.attr[FRAG_ATTRIB_WPOS][1][0] = fy; - exec.attr[FRAG_ATTRIB_WPOS][1][1] = fy; - exec.attr[FRAG_ATTRIB_WPOS][1][2] = fy + 1.0; - exec.attr[FRAG_ATTRIB_WPOS][1][3] = fy + 1.0; - - /* Z and W are done by linear interpolation: - * XXX we'll probably have to use integers for Z - */ - if (generic->need_z) { - linterp(&exec, 0, 2); - } - - if (generic->need_w) { - linterp(&exec, 0, 3); -// invert(&exec, 0, 3); - } - - /* Interpolate all the remaining attributes. This will get pushed - * into the fragment program's responsibilities at some point. - */ - for (i = 1; i < quad->nr_attrs; i++) { -#if 1 - for (j = 0; j < NUM_CHANNELS; j++) - linterp(&exec, i, j); -#else - switch (quad->interp[i]) { - case INTERP_CONSTANT: - for (j = 0; j < NUM_CHANNELS; j++) - cinterp(&exec, i, j); - break; - - case INTERP_LINEAR: - for (j = 0; j < NUM_CHANNELS; j++) - linterp(&exec, i, j); - break; - - case INTERP_PERSPECTIVE: - for (j = 0; j < NUM_CHANNELS; j++) - pinterp(&exec, i, j); - break; - } -#endif - } - -#if 0 - generic->run_fs( tri->fp, quad, &tri->outputs ); -#else - { - GLuint attr = generic->fp_attr_to_slot[FRAG_ATTRIB_COL0]; - assert(attr); - - memcpy(quad->outputs.color, - exec.attr[attr], - sizeof(quad->outputs.color)); - } -#endif - - - if (quad->mask) - quad_output( generic, quad ); -} - - - - - - - |