src/mesa/drivers/dri/gamma/gamma_span.c

   1
   2 #include "gammacontext.h"
   3 #include "gamma_lock.h"
   4 #include "colormac.h"
   5
   6 #include "swrast/swrast.h"
   7
   8 #define DBG 0
   9
  10 #define LOCAL_VARS                                                      \
  11    gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);                          \
  12    gammaScreenPtr gammascrn = gmesa->gammaScreen;                       \
  13    __DRIscreen *sPriv = gmesa->driScreen;                       \
  14    __DRIdrawable *dPriv = gmesa->driDrawable;                   \
  15    GLuint pitch = sPriv->fbWidth * gammascrn->cpp;              \
  16    GLuint height = dPriv->h;                                            \
  17    char *buf = (char *)(sPriv->pFB +                                    \
  18                         gmesa->drawOffset +                             \
  19                         (dPriv->x * gammascrn->cpp) +                   \
  20                         (dPriv->y * pitch));                            \
  21    GLuint p;                                                            \
  22    (void) buf; (void) p
  23
  24 /* FIXME! Depth/Stencil read/writes don't work ! */
  25 #define LOCAL_DEPTH_VARS                                \
  26    gammaScreenPtr gammascrn = gmesa->gammaScreen;       \
  27    __DRIdrawable *dPriv = gmesa->driDrawable;   \
  28    __DRIscreen *sPriv = gmesa->driScreen;       \
  29    GLuint pitch = gammascrn->depthPitch;                \
  30    GLuint height = dPriv->h;                            \
  31    char *buf = (char *)(sPriv->pFB +                    \
  32                         gammascrn->depthOffset +        \
  33                         dPriv->x * gammascrn->cpp +     \
  34                         dPriv->y * pitch)
  35
  36 #define LOCAL_STENCIL_VARS      LOCAL_DEPTH_VARS
  37
  38 #define Y_FLIP( _y )            (height - _y - 1)
  39
  40 #define HW_LOCK()                                                       \
  41    gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);                          \
  42    FLUSH_DMA_BUFFER(gmesa);                                             \
  43    gammaGetLock( gmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );          \
  44    GAMMAHW_LOCK( gmesa );
  45
  46 #define HW_UNLOCK() GAMMAHW_UNLOCK( gmesa )
  47
  48
  49
  50 /* ================================================================
  51  * Color buffer
  52  */
  53
  54 /* 16 bit, RGB565 color spanline and pixel functions
  55  */
  56 #define INIT_MONO_PIXEL(p, color) \
  57   p = PACK_COLOR_565( color[0], color[1], color[2] )
  58
  59 #define WRITE_RGBA( _x, _y, r, g, b, a )                                \
  60    *(GLushort *)(buf + _x*2 + _y*pitch) = ((((int)r & 0xf8) << 8) |     \
  61                                            (((int)g & 0xfc) << 3) |     \
  62                                            (((int)b & 0xf8) >> 3))
  63
  64 #define WRITE_PIXEL( _x, _y, p )                                        \
  65    *(GLushort *)(buf + _x*2 + _y*pitch) = p
  66
  67 #define READ_RGBA( rgba, _x, _y )                                       \
  68    do {                                                                 \
  69       GLushort p = *(GLushort *)(buf + _x*2 + _y*pitch);                \
  70       rgba[0] = (p >> 8) & 0xf8;                                        \
  71       rgba[1] = (p >> 3) & 0xfc;                                        \
  72       rgba[2] = (p << 3) & 0xf8;                                        \
  73       rgba[3] = 0xff;                                                   \
  74       if ( rgba[0] & 0x08 ) rgba[0] |= 0x07;                            \
  75       if ( rgba[1] & 0x04 ) rgba[1] |= 0x03;                            \
  76       if ( rgba[2] & 0x08 ) rgba[2] |= 0x07;                            \
  77    } while (0)
  78
  79 #define TAG(x) gamma##x##_RGB565
  80 #include "spantmp.h"
  81
  82
  83 /* 32 bit, ARGB8888 color spanline and pixel functions
  84  */
  85
  86 #undef INIT_MONO_PIXEL
  87 #define INIT_MONO_PIXEL(p, color) \
  88   p = PACK_COLOR_8888( color[3], color[0], color[1], color[2] )
  89
  90 #define WRITE_RGBA( _x, _y, r, g, b, a )                                \
  91    *(GLuint *)(buf + _x*4 + _y*pitch) = ((b <<  0) |                    \
  92                                          (g <<  8) |                    \
  93                                          (r << 16) |                    \
  94                                          (a << 24) )
  95
  96 #define WRITE_PIXEL( _x, _y, p )                                        \
  97    *(GLuint *)(buf + _x*4 + _y*pitch) = p
  98
  99 #define READ_RGBA( rgba, _x, _y )                                       \
 100 do {                                                                    \
 101    GLuint p = *(GLuint *)(buf + _x*4 + _y*pitch);                       \
 102    rgba[0] = (p >> 16) & 0xff;                                          \
 103    rgba[1] = (p >>  8) & 0xff;                                          \
 104    rgba[2] = (p >>  0) & 0xff;                                          \
 105    rgba[3] = (p >> 24) & 0xff;                                          \
 106 } while (0)
 107
 108 #define TAG(x) gamma##x##_ARGB8888
 109 #include "spantmp.h"
 110
 111
 112 /* 16 bit depthbuffer functions.
 113  */
 114 #define VALUE_TYPE GLushort
 115
 116 #define WRITE_DEPTH( _x, _y, d )        \
 117    *(GLushort *)(buf + (_x)*2 + (_y)*pitch) = d;
 118
 119 #define READ_DEPTH( d, _x, _y )         \
 120    d = *(GLushort *)(buf + (_x)*2 + (_y)*pitch);
 121
 122 #define TAG(x) gamma##x##_16
 123 #include "depthtmp.h"
 124
 125
 126 #if 0 /* Unused */
 127 /* 32 bit depthbuffer functions.
 128  */
 129 #define VALUE_TYPE GLuint
 130
 131 #define WRITE_DEPTH( _x, _y, d )        \
 132    *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = d;
 133
 134 #define READ_DEPTH( d, _x, _y )         \
 135    d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch);
 136
 137 #define TAG(x) gamma##x##_32
 138 #include "depthtmp.h"
 139 #endif
 140
 141
 142 /* 24/8 bit interleaved depth/stencil functions
 143  */
 144 #define VALUE_TYPE GLuint
 145
 146 #define WRITE_DEPTH( _x, _y, d ) {                      \
 147    GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*pitch); \
 148    tmp &= 0xff;                                         \
 149    tmp |= (d) & 0xffffff00;                             \
 150    *(GLuint *)(buf + (_x)*4 + (_y)*pitch) = tmp;                \
 151 }
 152
 153 #define READ_DEPTH( d, _x, _y )         \
 154    d = *(GLuint *)(buf + (_x)*4 + (_y)*pitch) & ~0xff;
 155
 156
 157 #define TAG(x) gamma##x##_24_8
 158 #include "depthtmp.h"
 159
 160 #if 0
 161 #define WRITE_STENCIL( _x, _y, d ) {                    \
 162    GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch);     \
 163    tmp &= 0xffffff00;                                   \
 164    tmp |= d & 0xff;                                     \
 165    *(GLuint *)(buf + _x*4 + _y*pitch) = tmp;            \
 166 }
 167
 168 #define READ_STENCIL( d, _x, _y )               \
 169    d = *(GLuint *)(buf + _x*4 + _y*pitch) & 0xff;
 170
 171 #define TAG(x) gamma##x##_24_8
 172 #include "stenciltmp.h"
 173
 174 static void gammaReadRGBASpan8888( const GLcontext *ctx,
 175                                GLuint n, GLint x, GLint y,
 176                                GLubyte rgba[][4])
 177 {
 178    gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
 179    gammaScreenPtr gammascrn = gmesa->gammaScreen;
 180    uint32_t dwords1, dwords2, i = 0;
 181    char *src = (char *)rgba[0];
 182    GLuint read = n * gammascrn->cpp; /* Number of bytes we are expecting */
 183    uint32_t data;
 184
 185    FLUSH_DMA_BUFFER(gmesa);
 186    CHECK_DMA_BUFFER(gmesa, 16);
 187    WRITE(gmesa->buf, LBReadMode, gmesa->LBReadMode & ~(LBReadSrcEnable | LBReadDstEnable));
 188    WRITE(gmesa->buf, ColorDDAMode, ColorDDAEnable);
 189    WRITE(gmesa->buf, LBWriteMode, LBWriteModeDisable);
 190    WRITE(gmesa->buf, FBReadMode, (gmesa->FBReadMode & ~FBReadSrcEnable) | FBReadDstEnable | FBDataTypeColor);
 191    WRITE(gmesa->buf, FilterMode, 0x200); /* Pass FBColorData */
 192    WRITE(gmesa->buf, FBWriteMode, FBW_UploadColorData | FBWriteModeDisable);
 193    WRITE(gmesa->buf, StartXSub, (x+n)<<16);
 194    WRITE(gmesa->buf, StartXDom, x<<16);
 195    WRITE(gmesa->buf, StartY, y<<16);
 196    WRITE(gmesa->buf, GLINTCount, 1);
 197    WRITE(gmesa->buf, dXDom, 0<<16);
 198    WRITE(gmesa->buf, dXSub, 0<<16);
 199    WRITE(gmesa->buf, dY, 1<<16);
 200    WRITE(gmesa->buf, Render, PrimitiveTrapezoid);
 201    FLUSH_DMA_BUFFER(gmesa);
 202
 203 moredata:
 204
 205    dwords1 = *(volatile uint32_t*)(void *)(((uint8_t*)gammascrn->regions[0].map) + (GlintOutFIFOWords));
 206    dwords2 = *(volatile uint32_t*)(void *)(((uint8_t*)gammascrn->regions[2].map) + (GlintOutFIFOWords));
 207
 208    if (dwords1) {
 209         memcpy(src, (char*)gammascrn->regions[1].map + 0x1000, dwords1 << 2);
 210         src += dwords1 << 2;
 211         read -= dwords1 << 2;
 212    }
 213    if (dwords2) {
 214         memcpy(src, (char*)gammascrn->regions[3].map + 0x1000, dwords2 << 2);
 215         src += dwords2 << 2;
 216         read -= dwords2 << 2;
 217    }
 218
 219    if (read)
 220         goto moredata;
 221
 222 done:
 223
 224    CHECK_DMA_BUFFER(gmesa, 6);
 225    WRITE(gmesa->buf, ColorDDAMode, gmesa->ColorDDAMode);
 226    WRITE(gmesa->buf, LBWriteMode, LBWriteModeEnable);
 227    WRITE(gmesa->buf, LBReadMode, gmesa->LBReadMode);
 228    WRITE(gmesa->buf, FBReadMode, gmesa->FBReadMode);
 229    WRITE(gmesa->buf, FBWriteMode, FBWriteModeEnable);
 230    WRITE(gmesa->buf, FilterMode, 0x400);
 231 }
 232 #endif
 233
 234 static void gammaSetBuffer( GLcontext *ctx,
 235                             GLframebuffer *colorBuffer,
 236                             GLuint bufferBit )
 237 {
 238    gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
 239
 240    switch ( bufferBit ) {
 241    case BUFFER_BIT_FRONT_LEFT:
 242       gmesa->readOffset = 0;
 243       break;
 244    case BUFFER_BIT_BACK_LEFT:
 245       gmesa->readOffset = gmesa->driScreen->fbHeight * gmesa->driScreen->fbWidth * gmesa->gammaScreen->cpp;
 246       break;
 247    default:
 248       _mesa_problem(ctx, "Unexpected buffer 0x%x in gammaSetBuffer()", bufferBit);
 249    }
 250 }
 251
 252
 253 void gammaDDInitSpanFuncs( GLcontext *ctx )
 254 {
 255    gammaContextPtr gmesa = GAMMA_CONTEXT(ctx);
 256    struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
 257
 258    swdd->SetBuffer = gammaSetBuffer;
 259
 260    switch ( gmesa->gammaScreen->cpp ) {
 261    case 2:
 262       swdd->WriteRGBASpan       = gammaWriteRGBASpan_RGB565;
 263       swdd->WriteRGBSpan        = gammaWriteRGBSpan_RGB565;
 264       swdd->WriteMonoRGBASpan   = gammaWriteMonoRGBASpan_RGB565;
 265       swdd->WriteRGBAPixels     = gammaWriteRGBAPixels_RGB565;
 266       swdd->WriteMonoRGBAPixels = gammaWriteMonoRGBAPixels_RGB565;
 267       swdd->ReadRGBASpan        = gammaReadRGBASpan_RGB565;
 268       swdd->ReadRGBAPixels      = gammaReadRGBAPixels_RGB565;
 269       break;
 270
 271    case 4:
 272       swdd->WriteRGBASpan       = gammaWriteRGBASpan_ARGB8888;
 273       swdd->WriteRGBSpan        = gammaWriteRGBSpan_ARGB8888;
 274       swdd->WriteMonoRGBASpan   = gammaWriteMonoRGBASpan_ARGB8888;
 275       swdd->WriteRGBAPixels     = gammaWriteRGBAPixels_ARGB8888;
 276       swdd->WriteMonoRGBAPixels = gammaWriteMonoRGBAPixels_ARGB8888;
 277 #if 1
 278       swdd->ReadRGBASpan        = gammaReadRGBASpan_ARGB8888;
 279 #else
 280       swdd->ReadRGBASpan        = gammaReadRGBASpan8888;
 281 #endif
 282       swdd->ReadRGBAPixels      = gammaReadRGBAPixels_ARGB8888;
 283       break;
 284
 285    default:
 286       break;
 287    }
 288
 289    switch ( gmesa->glCtx->Visual.depthBits ) {
 290    case 16:
 291       swdd->ReadDepthSpan       = gammaReadDepthSpan_16;
 292       swdd->WriteDepthSpan      = gammaWriteDepthSpan_16;
 293       swdd->ReadDepthPixels     = gammaReadDepthPixels_16;
 294       swdd->WriteDepthPixels    = gammaWriteDepthPixels_16;
 295       break;
 296
 297    case 24:
 298       swdd->ReadDepthSpan       = gammaReadDepthSpan_24_8;
 299       swdd->WriteDepthSpan      = gammaWriteDepthSpan_24_8;
 300       swdd->ReadDepthPixels     = gammaReadDepthPixels_24_8;
 301       swdd->WriteDepthPixels    = gammaWriteDepthPixels_24_8;
 302
 303 #if 0
 304       swdd->ReadStencilSpan     = gammaReadStencilSpan_24_8;
 305       swdd->WriteStencilSpan    = gammaWriteStencilSpan_24_8;
 306       swdd->ReadStencilPixels   = gammaReadStencilPixels_24_8;
 307       swdd->WriteStencilPixels  = gammaWriteStencilPixels_24_8;
 308 #endif
 309       break;
 310
 311    default:
 312       break;
 313    }
 314 }