summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/i915tex/intel_rotate.c
diff options
context:
space:
mode:
authorZack Rusin <zack@tungstengraphics.com>2007-12-11 17:46:06 -0500
committerZack Rusin <zack@tungstengraphics.com>2007-12-12 05:48:10 -0500
commit94e19777c9db476e930147346fe9217bfc879b1e (patch)
tree67da9716d4d654dd3bb541822367b00ad0126a29 /src/mesa/drivers/dri/i915tex/intel_rotate.c
parent1029c00a269d7f98ed659bb48727a17ef5dea9e5 (diff)
i915tex: remove. it's deprecated and causes merge problems
we did some small changes in the beginning of the gallium3d lifecycle in i915tex which is not in master anymore and just causes problems when doing merges. getting rid of the headache by just nuking it here
Diffstat (limited to 'src/mesa/drivers/dri/i915tex/intel_rotate.c')
-rw-r--r--src/mesa/drivers/dri/i915tex/intel_rotate.c237
1 files changed, 0 insertions, 237 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_rotate.c b/src/mesa/drivers/dri/i915tex/intel_rotate.c
deleted file mode 100644
index 12d98c4ad2..0000000000
--- a/src/mesa/drivers/dri/i915tex/intel_rotate.c
+++ /dev/null
@@ -1,237 +0,0 @@
-
-/**
- * Routines for simple 2D->2D transformations for rotated, flipped screens.
- *
- * XXX This code is not intel-specific. Move it into a common/utility
- * someday.
- */
-
-#include "intel_rotate.h"
-
-#define MIN2(A, B) ( ((A) < (B)) ? (A) : (B) )
-
-#define ABS(A) ( ((A) < 0) ? -(A) : (A) )
-
-
-void
-matrix23Set(struct matrix23 *m,
- int m00, int m01, int m02, int m10, int m11, int m12)
-{
- m->m00 = m00;
- m->m01 = m01;
- m->m02 = m02;
- m->m10 = m10;
- m->m11 = m11;
- m->m12 = m12;
-}
-
-
-/*
- * Transform (x,y) coordinate by the given matrix.
- */
-void
-matrix23TransformCoordf(const struct matrix23 *m, float *x, float *y)
-{
- const float x0 = *x;
- const float y0 = *y;
-
- *x = m->m00 * x0 + m->m01 * y0 + m->m02;
- *y = m->m10 * x0 + m->m11 * y0 + m->m12;
-}
-
-
-void
-matrix23TransformCoordi(const struct matrix23 *m, int *x, int *y)
-{
- const int x0 = *x;
- const int y0 = *y;
-
- *x = m->m00 * x0 + m->m01 * y0 + m->m02;
- *y = m->m10 * x0 + m->m11 * y0 + m->m12;
-}
-
-
-/*
- * Transform a width and height by the given matrix.
- * XXX this could be optimized quite a bit.
- */
-void
-matrix23TransformDistance(const struct matrix23 *m, int *xDist, int *yDist)
-{
- int x0 = 0, y0 = 0;
- int x1 = *xDist, y1 = 0;
- int x2 = 0, y2 = *yDist;
- matrix23TransformCoordi(m, &x0, &y0);
- matrix23TransformCoordi(m, &x1, &y1);
- matrix23TransformCoordi(m, &x2, &y2);
-
- *xDist = (x1 - x0) + (x2 - x0);
- *yDist = (y1 - y0) + (y2 - y0);
-
- if (*xDist < 0)
- *xDist = -*xDist;
- if (*yDist < 0)
- *yDist = -*yDist;
-}
-
-
-/**
- * Transform the rect defined by (x, y, w, h) by m.
- */
-void
-matrix23TransformRect(const struct matrix23 *m, int *x, int *y, int *w,
- int *h)
-{
- int x0 = *x, y0 = *y;
- int x1 = *x + *w, y1 = *y;
- int x2 = *x + *w, y2 = *y + *h;
- int x3 = *x, y3 = *y + *h;
- matrix23TransformCoordi(m, &x0, &y0);
- matrix23TransformCoordi(m, &x1, &y1);
- matrix23TransformCoordi(m, &x2, &y2);
- matrix23TransformCoordi(m, &x3, &y3);
- *w = ABS(x1 - x0) + ABS(x2 - x1);
- /**w = ABS(*w);*/
- *h = ABS(y1 - y0) + ABS(y2 - y1);
- /**h = ABS(*h);*/
- *x = MIN2(x0, x1);
- *x = MIN2(*x, x2);
- *y = MIN2(y0, y1);
- *y = MIN2(*y, y2);
-}
-
-
-/*
- * Make rotation matrix for width X height screen.
- */
-void
-matrix23Rotate(struct matrix23 *m, int width, int height, int angle)
-{
- switch (angle) {
- case 0:
- matrix23Set(m, 1, 0, 0, 0, 1, 0);
- break;
- case 90:
- matrix23Set(m, 0, 1, 0, -1, 0, width);
- break;
- case 180:
- matrix23Set(m, -1, 0, width, 0, -1, height);
- break;
- case 270:
- matrix23Set(m, 0, -1, height, 1, 0, 0);
- break;
- default:
- /*abort() */ ;
- }
-}
-
-
-/*
- * Make flip/reflection matrix for width X height screen.
- */
-void
-matrix23Flip(struct matrix23 *m, int width, int height, int xflip, int yflip)
-{
- if (xflip) {
- m->m00 = -1;
- m->m01 = 0;
- m->m02 = width - 1;
- }
- else {
- m->m00 = 1;
- m->m01 = 0;
- m->m02 = 0;
- }
- if (yflip) {
- m->m10 = 0;
- m->m11 = -1;
- m->m12 = height - 1;
- }
- else {
- m->m10 = 0;
- m->m11 = 1;
- m->m12 = 0;
- }
-}
-
-
-/*
- * result = a * b
- */
-void
-matrix23Multiply(struct matrix23 *result,
- const struct matrix23 *a, const struct matrix23 *b)
-{
- result->m00 = a->m00 * b->m00 + a->m01 * b->m10;
- result->m01 = a->m00 * b->m01 + a->m01 * b->m11;
- result->m02 = a->m00 * b->m02 + a->m01 * b->m12 + a->m02;
-
- result->m10 = a->m10 * b->m00 + a->m11 * b->m10;
- result->m11 = a->m10 * b->m01 + a->m11 * b->m11;
- result->m12 = a->m10 * b->m02 + a->m11 * b->m12 + a->m12;
-}
-
-
-#if 000
-
-#include <stdio.h>
-
-int
-main(int argc, char *argv[])
-{
- int width = 500, height = 400;
- int rot;
- int fx = 0, fy = 0; /* flip x and/or y ? */
- int coords[4][2];
-
- /* four corner coords to test with */
- coords[0][0] = 0;
- coords[0][1] = 0;
- coords[1][0] = width - 1;
- coords[1][1] = 0;
- coords[2][0] = width - 1;
- coords[2][1] = height - 1;
- coords[3][0] = 0;
- coords[3][1] = height - 1;
-
-
- for (rot = 0; rot < 360; rot += 90) {
- struct matrix23 rotate, flip, m;
- int i;
-
- printf("Rot %d, xFlip %d, yFlip %d:\n", rot, fx, fy);
-
- /* make transformation matrix 'm' */
- matrix23Rotate(&rotate, width, height, rot);
- matrix23Flip(&flip, width, height, fx, fy);
- matrix23Multiply(&m, &rotate, &flip);
-
- /* xform four coords */
- for (i = 0; i < 4; i++) {
- int x = coords[i][0];
- int y = coords[i][1];
- matrix23TransformCoordi(&m, &x, &y);
- printf(" %d, %d -> %d %d\n", coords[i][0], coords[i][1], x, y);
- }
-
- /* xform width, height */
- {
- int x = width;
- int y = height;
- matrix23TransformDistance(&m, &x, &y);
- printf(" %d x %d -> %d x %d\n", width, height, x, y);
- }
-
- /* xform rect */
- {
- int x = 50, y = 10, w = 200, h = 100;
- matrix23TransformRect(&m, &x, &y, &w, &h);
- printf(" %d,%d %d x %d -> %d, %d %d x %d\n", 50, 10, 200, 100,
- x, y, w, h);
- }
-
- }
-
- return 0;
-}
-#endif