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xserver-multidpi/hw/kdrive/ati/radeon_composite.c
Eric Anholt 5a2c23f8a1 Speed things up slightly by removing Z values from emitted vertices and by 
emitting as a tri fan rather than a tri list. A rect list would save an
    additional vertex (out of 4) per rectangle, but there's no measurable
    speed difference and the tri fan may be useful when transforms come
    into play.
2004-01-07 02:30:29 +00:00

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/*
* $Id$
*
* Copyright © 2003 Eric Anholt
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Eric Anholt not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Eric Anholt makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ERIC ANHOLT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Header$ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "ati.h"
#include "ati_reg.h"
#include "ati_draw.h"
#include "radeon_common.h"
#include "r128_common.h"
#include "ati_sarea.h"
#define TAG(x) x##DMA
#define LOCALS (void)atic; \
RING_LOCALS
#define BEGIN(x) BEGIN_RING(x * 2)
#define OUT_REG(reg, val) OUT_RING_REG(reg, val)
#define END() ADVANCE_RING()
extern ATIScreenInfo *accel_atis;
static CARD32 RadeonBlendOp[] = {
/* Clear */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_ZERO,
/* Src */
RADEON_SRC_BLEND_GL_ONE | RADEON_DST_BLEND_GL_ZERO,
/* Dst */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_ONE,
/* Over */
RADEON_SRC_BLEND_GL_ONE | RADEON_DST_BLEND_GL_ONE_MINUS_SRC_ALPHA,
/* OverReverse */
RADEON_SRC_BLEND_GL_ONE_MINUS_DST_ALPHA | RADEON_DST_BLEND_GL_ONE,
/* In */
RADEON_SRC_BLEND_GL_DST_ALPHA | RADEON_DST_BLEND_GL_ZERO,
/* InReverse */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_SRC_ALPHA,
/* Out */
RADEON_SRC_BLEND_GL_ONE_MINUS_DST_ALPHA | RADEON_DST_BLEND_GL_ZERO,
/* OutReverse */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_ONE_MINUS_SRC_ALPHA,
/* Atop */
RADEON_SRC_BLEND_GL_DST_ALPHA | RADEON_DST_BLEND_GL_ONE_MINUS_SRC_ALPHA,
/* AtopReverse */
RADEON_SRC_BLEND_GL_ONE_MINUS_DST_ALPHA | RADEON_DST_BLEND_GL_SRC_ALPHA,
/* Xor */
RADEON_SRC_BLEND_GL_ONE_MINUS_DST_ALPHA | RADEON_DST_BLEND_GL_ONE_MINUS_SRC_ALPHA,
/* Add */
RADEON_SRC_BLEND_GL_ONE | RADEON_DST_BLEND_GL_ONE,
/* Saturate */
RADEON_SRC_BLEND_GL_SRC_ALPHA_SATURATE | RADEON_DST_BLEND_GL_ONE,
/* DisjointClear */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_ZERO,
/* DisjointSrc */
RADEON_SRC_BLEND_GL_ONE | RADEON_DST_BLEND_GL_ZERO,
/* DisjointDst */
RADEON_SRC_BLEND_GL_ZERO | RADEON_DST_BLEND_GL_ONE,
};
/* Compute log base 2 of val. */
static int
ATILog2(int val)
{
int bits;
if (!val)
return 1;
for (bits = 0; val != 0; val >>= 1, ++bits)
;
return bits;
}
static Bool
RadeonTextureSetup(PicturePtr pPict, PixmapPtr pPix, int unit)
{
ATIScreenInfo *atis = accel_atis;
ATICardInfo *atic = atis->atic;
KdScreenPriv(pPix->drawable.pScreen);
CARD32 txformat, txoffset, txpitch;
int w = pPict->pDrawable->width;
int h = pPict->pDrawable->height;
LOCALS;
if ((w > 0x7ff) || (h > 0x7ff))
ATI_FALLBACK(("Picture w/h too large (%dx%d)\n", w, h));
switch (pPict->format) {
case PICT_a8r8g8b8:
txformat = RADEON_TXFORMAT_ARGB8888 |
RADEON_TXFORMAT_ALPHA_IN_MAP;
break;
case PICT_x8r8g8b8:
txformat = RADEON_TXFORMAT_ARGB8888;
break;
case PICT_r5g6b5:
txformat = RADEON_TXFORMAT_RGB565;
break;
case PICT_a8:
txformat = RADEON_TXFORMAT_I8 | RADEON_TXFORMAT_ALPHA_IN_MAP;
break;
default:
ATI_FALLBACK(("Unsupported picture format 0x%x\n",
pPict->format));
}
if (pPict->repeat) {
if ((w & (w - 1)) != 0 || (h & (h - 1)) != 0)
ATI_FALLBACK(("NPOT repeat unsupported (%dx%d)\n", w,
h));
txformat |= (ATILog2(w) - 1) << RADEON_TXFORMAT_WIDTH_SHIFT;
txformat |= (ATILog2(h) - 1) << RADEON_TXFORMAT_HEIGHT_SHIFT;
} else
txformat |= RADEON_TXFORMAT_NON_POWER2;
txformat |= unit << 24; /* RADEON_TXFORMAT_ST_ROUTE_STQX */
txpitch = pPix->devKind;
txoffset = ((CARD8 *)pPix->devPrivate.ptr -
pScreenPriv->screen->memory_base);
if ((txoffset & 0x1f) != 0)
ATI_FALLBACK(("Bad texture offset 0x%x\n", txoffset));
if ((txpitch & 0x1f) != 0)
ATI_FALLBACK(("Bad texture pitch 0x%x\n", txpitch));
/* RADEON_REG_PP_TXFILTER_0, RADEON_REG_PP_TXFORMAT_0,
* RADEON_REG_PP_TXOFFSET_0
*/
BEGIN_RING(4);
OUT_RING(DMA_PACKET0(RADEON_REG_PP_TXFILTER_0 + 0x18 * unit, 2));
OUT_RING(0);
OUT_RING(txformat);
OUT_RING(txoffset);
ADVANCE_RING();
/* RADEON_REG_PP_TEX_SIZE_0, RADEON_REG_PP_TEX_PITCH_0 */
BEGIN_RING(3);
OUT_RING(DMA_PACKET0(RADEON_REG_PP_TEX_SIZE_0 + 0x8 * unit, 1));
OUT_RING((pPix->drawable.width - 1) |
((pPix->drawable.height - 1) << RADEON_TEX_VSIZE_SHIFT));
OUT_RING(txpitch - 32);
ADVANCE_RING();
return TRUE;
}
Bool
RadeonPrepareComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,
PicturePtr pDstPicture, PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
{
KdScreenPriv(pDst->drawable.pScreen);
ATIScreenInfo(pScreenPriv);
ATICardInfo(pScreenPriv);
CARD32 dst_format, dst_offset, dst_pitch;
CARD32 pp_cntl;
int pixel_shift;
LOCALS;
/*ErrorF("RadeonPrepareComposite\n");*/
/* Check for unsupported compositing operations. */
if (op >= sizeof(RadeonBlendOp) / sizeof(RadeonBlendOp[0]))
ATI_FALLBACK(("Unsupported Composite op 0x%x\n", op));
if (pSrcPicture->transform)
ATI_FALLBACK(("Source transform unsupported.\n"));
if (pMaskPicture && pMaskPicture->transform)
ATI_FALLBACK(("Mask transform unsupported.\n"));
accel_atis = atis;
switch (pDstPicture->format) {
case PICT_r5g6b5:
dst_format = RADEON_COLOR_FORMAT_RGB565;
pixel_shift = 1;
break;
case PICT_a1r5g5b5:
dst_format = RADEON_COLOR_FORMAT_ARGB1555;
pixel_shift = 1;
break;
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
dst_format = RADEON_COLOR_FORMAT_ARGB8888;
pixel_shift = 2;
break;
default:
ATI_FALLBACK(("Unsupported dest format 0x%x\n",
pDstPicture->format));
}
dst_offset = ((CARD8 *)pDst->devPrivate.ptr -
pScreenPriv->screen->memory_base);
dst_pitch = pDst->devKind;
if ((dst_offset & 0xff) != 0)
ATI_FALLBACK(("Bad destination offset 0x%x\n", dst_offset));
if (((dst_pitch >> pixel_shift) & 0x7) != 0)
ATI_FALLBACK(("Bad destination pitch 0x%x\n", dst_pitch));
if (!RadeonTextureSetup(pSrcPicture, pSrc, 0))
return FALSE;
pp_cntl = RADEON_TEX_0_ENABLE | RADEON_TEX_BLEND_0_ENABLE;
if (pMask != NULL) {
if (!RadeonTextureSetup(pMaskPicture, pMask, 1))
return FALSE;
pp_cntl |= RADEON_TEX_1_ENABLE;
}
BEGIN(2);
OUT_REG(RADEON_REG_RE_TOP_LEFT, 0);
OUT_REG(RADEON_REG_RE_WIDTH_HEIGHT, 0xffffffff);
END();
BEGIN(11);
OUT_REG(RADEON_REG_PP_CNTL, pp_cntl);
OUT_REG(RADEON_REG_RB3D_CNTL, dst_format | RADEON_ALPHA_BLEND_ENABLE);
/* COLORPITCH is multiples of 8 pixels, but located at the 3rd bit */
OUT_REG(RADEON_REG_RB3D_COLORPITCH, (dst_pitch >> pixel_shift));
OUT_REG(RADEON_REG_RB3D_COLOROFFSET, dst_offset);
OUT_REG(RADEON_REG_RB3D_PLANEMASK, 0xffffffff);
OUT_REG(RADEON_REG_SE_CNTL, RADEON_FFACE_CULL_CCW | RADEON_FFACE_SOLID |
RADEON_VTX_PIX_CENTER_OGL);
OUT_REG(RADEON_REG_SE_CNTL_STATUS, RADEON_TCL_BYPASS);
OUT_REG(RADEON_REG_SE_COORD_FMT,
RADEON_VTX_XY_PRE_MULT_1_OVER_W0 |
RADEON_VTX_ST0_NONPARAMETRIC |
RADEON_VTX_ST1_NONPARAMETRIC |
RADEON_TEX1_W_ROUTING_USE_W0);
if (pMask != NULL) {
/* IN operator: Multiply src by mask components or mask alpha.
* BLEND_CTL_ADD is A * B + C
*/
if (pMaskPicture->componentAlpha)
OUT_REG(RADEON_REG_PP_TXCBLEND_0,
RADEON_COLOR_ARG_A_T0_COLOR |
RADEON_COLOR_ARG_B_T1_COLOR |
RADEON_COLOR_ARG_C_ZERO |
RADEON_BLEND_CTL_ADD |
RADEON_CLAMP_TX);
else
OUT_REG(RADEON_REG_PP_TXCBLEND_0,
RADEON_COLOR_ARG_A_T0_COLOR |
RADEON_COLOR_ARG_B_T1_ALPHA |
RADEON_COLOR_ARG_C_ZERO |
RADEON_BLEND_CTL_ADD |
RADEON_CLAMP_TX);
OUT_REG(RADEON_REG_PP_TXABLEND_0,
RADEON_ALPHA_ARG_A_T0_ALPHA |
RADEON_ALPHA_ARG_B_T1_ALPHA |
RADEON_ALPHA_ARG_C_ZERO |
RADEON_BLEND_CTL_ADD);
} else {
OUT_REG(RADEON_REG_PP_TXCBLEND_0,
RADEON_COLOR_ARG_A_ZERO |
RADEON_COLOR_ARG_B_ZERO |
RADEON_COLOR_ARG_C_T0_COLOR |
RADEON_BLEND_CTL_ADD |
RADEON_CLAMP_TX);
OUT_REG(RADEON_REG_PP_TXABLEND_0,
RADEON_ALPHA_ARG_A_ZERO |
RADEON_ALPHA_ARG_B_ZERO |
RADEON_ALPHA_ARG_C_T0_ALPHA |
RADEON_BLEND_CTL_ADD);
}
/* Op operator. */
OUT_REG(RADEON_RB3D_BLENDCNTL, RadeonBlendOp[op]);
END();
RadeonSwitchTo3D();
return TRUE;
}
union intfloat {
float f;
CARD32 i;
};
struct blend_vertex {
union intfloat x, y;
union intfloat s0, t0;
union intfloat s1, t1;
};
#define VTX_REG_COUNT 6
#define VTX_OUT(vtx) \
do { \
OUT_RING(vtx.x.i); \
OUT_RING(vtx.y.i); \
OUT_RING(vtx.s0.i); \
OUT_RING(vtx.t0.i); \
OUT_RING(vtx.s1.i); \
OUT_RING(vtx.t1.i); \
/*ErrorF("%f,%f %f,%f %f,%f\n", vtx.x.f, vtx.y.f, vtx.s0.f, \
vtx.t0.f, vtx.s1.f, vtx.t1.f);*/ \
} while (0)
void
RadeonComposite(int srcX, int srcY, int maskX, int maskY, int dstX, int dstY,
int w, int h)
{
ATIScreenInfo *atis = accel_atis;
ATICardInfo *atic = atis->atic;
LOCALS;
struct blend_vertex vtx[4];
/*ErrorF("RadeonComposite %d %d %d %d %d %d\n", srcX, srcY, maskX, maskY,
dstX, dstY, w, h);*/
BEGIN_RING(3 + 4 * VTX_REG_COUNT);
OUT_RING(RADEON_CP_PACKET3_3D_DRAW_IMMD |
((4 * VTX_REG_COUNT + 1) << 16));
OUT_RING(RADEON_CP_VC_FRMT_XY |
RADEON_CP_VC_FRMT_ST0 |
RADEON_CP_VC_FRMT_ST1);
OUT_RING(RADEON_CP_VC_CNTL_PRIM_TYPE_TRI_FAN |
RADEON_CP_VC_CNTL_PRIM_WALK_RING |
RADEON_CP_VC_CNTL_MAOS_ENABLE |
RADEON_CP_VC_CNTL_VTX_FMT_RADEON_MODE |
(4 << RADEON_CP_VC_CNTL_NUM_SHIFT));
vtx[0].x.f = dstX;
vtx[0].y.f = dstY;
vtx[0].s0.f = srcX;
vtx[0].t0.f = srcY;
vtx[0].s1.f = maskX;
vtx[0].t1.f = maskY;
vtx[1].x.f = dstX;
vtx[1].y.f = dstY + h;
vtx[1].s0.f = srcX;
vtx[1].t0.f = srcY + h;
vtx[1].s1.f = maskX;
vtx[1].t1.f = maskY + h;
vtx[2].x.f = dstX + w;
vtx[2].y.f = dstY + h;
vtx[2].s0.f = srcX + w;
vtx[2].t0.f = srcY + h;
vtx[2].s1.f = maskX + w;
vtx[2].t1.f = maskY + h;
vtx[3].x.f = dstX + w;
vtx[3].y.f = dstY;
vtx[3].s0.f = srcX + w;
vtx[3].t0.f = srcY;
vtx[3].s1.f = maskX + w;
vtx[3].t1.f = maskY;
VTX_OUT(vtx[0]);
VTX_OUT(vtx[1]);
VTX_OUT(vtx[2]);
VTX_OUT(vtx[3]);
ADVANCE_RING();
}
void
RadeonDoneComposite(void)
{
/*ErrorF("RadeonDoneComposite\n");*/
}
Bool
RadeonPrepareBlend(int op, PicturePtr pSrcPicture, PicturePtr pDstPicture,
PixmapPtr pSrc, PixmapPtr pDst)
{
return RadeonPrepareComposite(op, pSrcPicture, NULL, pDstPicture, pSrc,
NULL, pDst);
}
void
RadeonBlend(int srcX, int srcY, int dstX, int dstY, int width, int height)
{
RadeonComposite(srcX, srcY, 0, 0, dstX, dstY, width, height);
}
void
RadeonDoneBlend(void)
{
RadeonDoneComposite();
}
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