src/video/fbcon/SDL_fbmatrox.c
author Edgar Simo <bobbens@gmail.com>
Mon, 04 Aug 2008 11:30:16 +0000
branchgsoc2008_force_feedback
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child 2698 e1da92da346c
permissions -rw-r--r--
Fixed warning.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2006 Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Lesser General Public
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    License as published by the Free Software Foundation; either
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    version 2.1 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Lesser General Public License for more details.
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    You should have received a copy of the GNU Lesser General Public
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    License along with this library; if not, write to the Free Software
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    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#include "SDL_video.h"
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#include "../SDL_blit.h"
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#include "SDL_fbmatrox.h"
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#include "matrox_mmio.h"
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/* Wait for vertical retrace - taken from the XFree86 Matrox driver */
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static void
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WaitVBL(_THIS)
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{
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    int count;
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    /* find start of retrace */
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    mga_waitidle();
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    while ((mga_in8(0x1FDA) & 0x08));
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    while (!(mga_in8(0x1FDA) & 0x08));
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    /* wait until we're past the start */
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    count = mga_in32(0x1E20) + 2;
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    while (mga_in32(0x1E20) < count);
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}
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static void
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WaitIdle(_THIS)
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{
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    mga_waitidle();
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}
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/* Sets video mem colorkey and accelerated blit function */
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static int
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SetHWColorKey(_THIS, SDL_Surface * surface, Uint32 key)
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{
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    return (0);
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}
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/* Sets per surface hardware alpha value */
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#if 0
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static int
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SetHWAlpha(_THIS, SDL_Surface * surface, Uint8 value)
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{
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    return (0);
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}
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#endif
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static int
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FillHWRect(_THIS, SDL_Surface * dst, SDL_Rect * rect, Uint32 color)
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{
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    int dstX, dstY;
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    Uint32 fxbndry;
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    Uint32 ydstlen;
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    Uint32 fillop;
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    /* Don't blit to the display surface when switched away */
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    if (switched_away) {
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        return -2;              /* no hardware access */
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    }
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    if (dst == this->screen) {
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        SDL_mutexP(hw_lock);
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    }
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    switch (dst->format->BytesPerPixel) {
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    case 1:
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        color |= (color << 8);
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    case 2:
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        color |= (color << 16);
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        break;
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    }
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    /* Set up the X/Y base coordinates */
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    FB_dst_to_xy(this, dst, &dstX, &dstY);
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    /* Adjust for the current rectangle */
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    dstX += rect->x;
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    dstY += rect->y;
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    /* Set up the X boundaries */
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    fxbndry = (dstX | ((dstX + rect->w) << 16));
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    /* Set up the Y boundaries */
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    ydstlen = (rect->h | (dstY << 16));
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    /* Set up for color fill operation */
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    fillop = MGADWG_TRAP | MGADWG_SOLID |
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        MGADWG_ARZERO | MGADWG_SGNZERO | MGADWG_SHIFTZERO;
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    /* Execute the operations! */
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    mga_wait(5);
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    mga_out32(MGAREG_DWGCTL, fillop | MGADWG_REPLACE);
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    mga_out32(MGAREG_FCOL, color);
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    mga_out32(MGAREG_FXBNDRY, fxbndry);
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    mga_out32(MGAREG_YDSTLEN + MGAREG_EXEC, ydstlen);
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    FB_AddBusySurface(dst);
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    if (dst == this->screen) {
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        SDL_mutexV(hw_lock);
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    }
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    return (0);
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}
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static int
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HWAccelBlit(SDL_Surface * src, SDL_Rect * srcrect,
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            SDL_Surface * dst, SDL_Rect * dstrect)
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{
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   126
    SDL_VideoDevice *this = current_video;
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   127
    int pitch, w, h;
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   128
    int srcX, srcY;
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    int dstX, dstY;
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    Uint32 sign;
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   131
    Uint32 start, stop;
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    int skip;
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   133
    Uint32 blitop;
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   134
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   135
    /* FIXME: For now, only blit to display surface */
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   136
    if (dst->pitch != SDL_VideoSurface->pitch) {
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        return (src->map->sw_blit(src, srcrect, dst, dstrect));
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   138
    }
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   139
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   140
    /* Don't blit to the display surface when switched away */
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   141
    if (switched_away) {
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   142
        return -2;              /* no hardware access */
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   143
    }
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   144
    if (dst == this->screen) {
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   145
        SDL_mutexP(hw_lock);
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   146
    }
109
5a9c36a45db1 Fixed switching away from the SDL at the framebuffer console
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diff changeset
   147
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   148
    /* Calculate source and destination base coordinates (in pixels) */
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   149
    w = dstrect->w;
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   150
    h = dstrect->h;
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   151
    FB_dst_to_xy(this, src, &srcX, &srcY);
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   152
    FB_dst_to_xy(this, dst, &dstX, &dstY);
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   153
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   154
    /* Adjust for the current blit rectangles */
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   155
    srcX += srcrect->x;
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   156
    srcY += srcrect->y;
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   157
    dstX += dstrect->x;
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   158
    dstY += dstrect->y;
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   159
    pitch = dst->pitch / dst->format->BytesPerPixel;
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   160
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   161
    /* Set up the blit direction (sign) flags */
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   162
    sign = 0;
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   163
    if (srcX < dstX) {
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   164
        sign |= 1;
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   165
    }
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   166
    if (srcY < dstY) {
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   167
        sign |= 4;
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   168
        srcY += (h - 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   169
        dstY += (h - 1);
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   170
    }
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   171
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   172
    /* Set up the blit source row start, end, and skip (in pixels) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   173
    stop = start = (srcY * pitch) + srcX;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   174
    if (srcX < dstX) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   175
        start += (w - 1);
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   176
    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   177
        stop += (w - 1);
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diff changeset
   178
    }
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   179
    if (srcY < dstY) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   180
        skip = -pitch;
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   181
    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   182
        skip = pitch;
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diff changeset
   183
    }
0
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   184
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   185
    /* Set up the blit operation */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   186
    if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   187
        Uint32 colorkey;
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diff changeset
   188
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   189
        blitop = MGADWG_BFCOL | MGADWG_BITBLT |
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   190
            MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16) | MGADWG_TRANSC;
0
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   191
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   192
        colorkey = src->format->colorkey;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   193
        switch (dst->format->BytesPerPixel) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   194
        case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   195
            colorkey |= (colorkey << 8);
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   196
        case 2:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   197
            colorkey |= (colorkey << 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   198
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   199
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   200
        mga_wait(2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   201
        mga_out32(MGAREG_FCOL, colorkey);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   202
        mga_out32(MGAREG_BCOL, 0xFFFFFFFF);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   203
    } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   204
        blitop = MGADWG_BFCOL | MGADWG_BITBLT |
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   205
            MGADWG_SHIFTZERO | MGADWG_RSTR | (0x0C << 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   206
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   207
    mga_wait(7);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   208
    mga_out32(MGAREG_SGN, sign);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   209
    mga_out32(MGAREG_AR3, start);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   210
    mga_out32(MGAREG_AR0, stop);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   211
    mga_out32(MGAREG_AR5, skip);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   212
    mga_out32(MGAREG_FXBNDRY, (dstX | ((dstX + w - 1) << 16)));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   213
    mga_out32(MGAREG_YDSTLEN, (dstY << 16) | h);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   214
    mga_out32(MGAREG_DWGCTL + MGAREG_EXEC, blitop);
0
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   215
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diff changeset
   216
    FB_AddBusySurface(src);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   217
    FB_AddBusySurface(dst);
106
63ec24e0575f Merged DGA video surface handling improvements, unified locking code.
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diff changeset
   218
1895
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diff changeset
   219
    if (dst == this->screen) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   220
        SDL_mutexV(hw_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   221
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   222
    return (0);
0
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diff changeset
   223
}
74212992fb08 Initial revision
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diff changeset
   224
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   225
static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   226
CheckHWBlit(_THIS, SDL_Surface * src, SDL_Surface * dst)
0
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   227
{
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   228
    int accelerated;
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   229
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   230
    /* Set initial acceleration on */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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   231
    src->flags |= SDL_HWACCEL;
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diff changeset
   232
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   233
    /* Set the surface attributes */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   234
    if ((src->flags & SDL_SRCALPHA) == SDL_SRCALPHA) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   235
        if (!this->info.blit_hw_A) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   236
            src->flags &= ~SDL_HWACCEL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   237
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   238
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   239
    if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1780
diff changeset
   240
        if (!this->info.blit_hw_CC) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1780
diff changeset
   241
            src->flags &= ~SDL_HWACCEL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
   242
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1780
diff changeset
   243
    }
0
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diff changeset
   244
1895
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    /* Check to see if final surface blit is accelerated */
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    accelerated = !!(src->flags & SDL_HWACCEL);
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    if (accelerated) {
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        src->map->hw_blit = HWAccelBlit;
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    }
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    return (accelerated);
0
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}
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void
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FB_MatroxAccel(_THIS, __u32 card)
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{
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    /* We have hardware accelerated surface functions */
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    this->CheckHWBlit = CheckHWBlit;
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    wait_vbl = WaitVBL;
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    wait_idle = WaitIdle;
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    /* The Matrox has an accelerated color fill */
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    this->info.blit_fill = 1;
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    this->FillHWRect = FillHWRect;
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    /* The Matrox has accelerated normal and colorkey blits. */
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    this->info.blit_hw = 1;
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    /* The Millenium I appears to do the colorkey test a word
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       at a time, and the transparency is intverted. (?)
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     */
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    if (card != FB_ACCEL_MATROX_MGA2064W) {
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        this->info.blit_hw_CC = 1;
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        this->SetHWColorKey = SetHWColorKey;
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    }
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#if 0                           /* Not yet implemented? */
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    /* The Matrox G200/G400 has an accelerated alpha blit */
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    if ((card == FB_ACCEL_MATROX_MGAG200)
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        || (card == FB_ACCEL_MATROX_MGAG400)) {
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        this->info.blit_hw_A = 1;
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        this->SetHWAlpha = SetHWAlpha;
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    }
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#endif
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}
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/* vi: set ts=4 sw=4 expandtab: */