diff options
Diffstat (limited to 'src/mesa/drivers/dri/nouveau/nouveau_util.h')
| -rw-r--r-- | src/mesa/drivers/dri/nouveau/nouveau_util.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_util.h b/src/mesa/drivers/dri/nouveau/nouveau_util.h new file mode 100644 index 00000000000..076f225fedc --- /dev/null +++ b/src/mesa/drivers/dri/nouveau/nouveau_util.h @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2009 Francisco Jerez. + * 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 (including the + * next paragraph) 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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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. + * + */ + +#ifndef __NOUVEAU_UTIL_H__ +#define __NOUVEAU_UTIL_H__ + +#include "main/formats.h" +#include "main/colormac.h" + +static inline unsigned +pack_rgba_i(gl_format f, uint8_t c[]) +{ + switch (f) { + case MESA_FORMAT_ARGB8888: + return PACK_COLOR_8888(c[ACOMP], c[RCOMP], c[GCOMP], c[BCOMP]); + case MESA_FORMAT_ARGB8888_REV: + return PACK_COLOR_8888(c[BCOMP], c[GCOMP], c[RCOMP], c[ACOMP]); + case MESA_FORMAT_XRGB8888: + return PACK_COLOR_8888(0, c[RCOMP], c[GCOMP], c[BCOMP]); + case MESA_FORMAT_XRGB8888_REV: + return PACK_COLOR_8888(c[BCOMP], c[GCOMP], c[RCOMP], 0); + case MESA_FORMAT_RGBA8888: + return PACK_COLOR_8888(c[RCOMP], c[GCOMP], c[BCOMP], c[ACOMP]); + case MESA_FORMAT_RGBA8888_REV: + return PACK_COLOR_8888(c[ACOMP], c[BCOMP], c[GCOMP], c[RCOMP]); + case MESA_FORMAT_RGB565: + return PACK_COLOR_565(c[RCOMP], c[GCOMP], c[BCOMP]); + default: + assert(0); + } +} + +static inline unsigned +pack_zs_i(gl_format f, uint32_t z, uint8_t s) +{ + switch (f) { + case MESA_FORMAT_Z24_S8: + return (z & 0xffffff00) | (s & 0xff); + case MESA_FORMAT_Z24_X8: + return (z & 0xffffff00); + case MESA_FORMAT_Z16: + return (z & 0xffff0000) >> 16; + default: + assert(0); + } +} + +static inline unsigned +pack_rgba_f(gl_format f, float c[]) +{ + return pack_rgba_i(f, (uint8_t []) { + FLOAT_TO_UBYTE(c[RCOMP]), + FLOAT_TO_UBYTE(c[GCOMP]), + FLOAT_TO_UBYTE(c[BCOMP]), + FLOAT_TO_UBYTE(c[ACOMP]) }); +} + +static inline unsigned +pack_zs_f(gl_format f, float z, uint8_t s) +{ + return pack_zs_i(f, FLOAT_TO_UINT(z), s); +} + +/* Integer base-2 logarithm, rounded towards zero. */ +static inline unsigned +log2i(unsigned i) +{ + unsigned r = 0; + + if (i & 0xffff0000) { + i >>= 16; + r += 16; + } + if (i & 0x0000ff00) { + i >>= 8; + r += 8; + } + if (i & 0x000000f0) { + i >>= 4; + r += 4; + } + if (i & 0x0000000c) { + i >>= 2; + r += 2; + } + if (i & 0x00000002) { + r += 1; + } + return r; +} + +static inline unsigned +align(unsigned x, unsigned m) +{ + return (x + m - 1) & ~(m - 1); +} + +static inline void +get_scissors(struct gl_framebuffer *fb, int *x, int *y, int *w, int *h) +{ + *w = fb->_Xmax - fb->_Xmin; + *h = fb->_Ymax - fb->_Ymin; + *x = fb->_Xmin; + *y = (fb->Name ? fb->_Ymin : + /* Window system FBO: Flip the Y coordinate. */ + fb->Height - fb->_Ymax); +} + +static inline void +get_viewport_scale(GLcontext *ctx, float a[16]) +{ + struct gl_viewport_attrib *vp = &ctx->Viewport; + struct gl_framebuffer *fb = ctx->DrawBuffer; + + a[MAT_SX] = (float)vp->Width / 2; + + if (fb->Name) + a[MAT_SY] = (float)vp->Height / 2; + else + /* Window system FBO: Flip the Y coordinate. */ + a[MAT_SY] = - (float)vp->Height / 2; + + a[MAT_SZ] = fb->_DepthMaxF * (vp->Far - vp->Near) / 2; +} + +static inline void +get_viewport_translate(GLcontext *ctx, float a[4]) +{ + struct gl_viewport_attrib *vp = &ctx->Viewport; + struct gl_framebuffer *fb = ctx->DrawBuffer; + + a[0] = (float)vp->Width / 2 + vp->X; + + if (fb->Name) + a[1] = (float)vp->Height / 2 + vp->Y; + else + /* Window system FBO: Flip the Y coordinate. */ + a[1] = fb->Height - (float)vp->Height / 2 - vp->Y; + + a[2] = fb->_DepthMaxF * (vp->Far + vp->Near) / 2; +} + +static inline void +OUT_RINGm(struct nouveau_channel *chan, float m[16]) +{ + int i, j; + + for (i = 0; i < 4; i++) + for (j = 0; j < 4; j++) + OUT_RINGf(chan, m[4*j + i]); +} + +#endif |