src/mesa/drivers/dri/sis/sis_screen.c

   1 /**************************************************************************
   2
   3 Copyright 2003 Eric Anholt
   4 All Rights Reserved.
   5
   6 Permission is hereby granted, free of charge, to any person obtaining a
   7 copy of this software and associated documentation files (the "Software"),
   8 to deal in the Software without restriction, including without limitation
   9 on the rights to use, copy, modify, merge, publish, distribute, sub
  10 license, and/or sell copies of the Software, and to permit persons to whom
  11 the Software is furnished to do so, subject to the following conditions:
  12
  13 The above copyright notice and this permission notice (including the next
  14 paragraph) shall be included in all copies or substantial portions of the
  15 Software.
  16
  17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  20 ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23
  24 **************************************************************************/
  25
  26 /*
  27  * Authors:
  28  *   Eric Anholt <anholt@FreeBSD.org>
  29  */
  30
  31 #include "dri_util.h"
  32
  33 #include "main/context.h"
  34 #include "utils.h"
  35 #include "main/imports.h"
  36 #include "main/framebuffer.h"
  37 #include "main/renderbuffer.h"
  38
  39 #include "sis_context.h"
  40 #include "sis_dri.h"
  41 #include "sis_lock.h"
  42
  43 #include "xmlpool.h"
  44
  45 #include "GL/internal/dri_interface.h"
  46
  47 #define SIS_AGP_DISABLE(def) \
  48 DRI_CONF_OPT_BEGIN(agp_disable,bool,def)                                \
  49         DRI_CONF_DESC(en,"Disable AGP vertex dispatch")                 \
  50 DRI_CONF_OPT_END
  51
  52 PUBLIC const char __driConfigOptions[] =
  53 DRI_CONF_BEGIN
  54         DRI_CONF_SECTION_QUALITY
  55                 DRI_CONF_TEXTURE_DEPTH(DRI_CONF_TEXTURE_DEPTH_FB)
  56         DRI_CONF_SECTION_END
  57         DRI_CONF_SECTION_DEBUG
  58                 SIS_AGP_DISABLE(true)
  59                 DRI_CONF_NO_RAST(false)
  60         DRI_CONF_SECTION_END
  61 DRI_CONF_END;
  62 static const GLuint __driNConfigOptions = 3;
  63
  64 extern const struct dri_extension card_extensions[];
  65
  66 static const __DRIconfig **
  67 sisFillInModes(__DRIscreen *psp, int bpp)
  68 {
  69    __DRIconfig **configs;
  70    unsigned depth_buffer_factor;
  71    unsigned back_buffer_factor;
  72    GLenum fb_format;
  73    GLenum fb_type;
  74    static const GLenum back_buffer_modes[] = {
  75       GLX_NONE, GLX_SWAP_UNDEFINED_OML
  76    };
  77    uint8_t depth_bits_array[4];
  78    uint8_t stencil_bits_array[4];
  79    uint8_t msaa_samples_array[1];
  80
  81    depth_bits_array[0] = 0;
  82    stencil_bits_array[0] = 0;
  83    depth_bits_array[1] = 16;
  84    stencil_bits_array[1] = 0;
  85    depth_bits_array[2] = 24;
  86    stencil_bits_array[2] = 8;
  87    depth_bits_array[3] = 32;
  88    stencil_bits_array[3] = 0;
  89
  90    msaa_samples_array[0] = 0;
  91
  92    depth_buffer_factor = 4;
  93    back_buffer_factor = 2;
  94
  95    if (bpp == 16) {
  96       fb_format = GL_RGB;
  97       fb_type = GL_UNSIGNED_SHORT_5_6_5;
  98    } else {
  99       fb_format = GL_BGRA;
 100       fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
 101    }
 102
 103    configs = driCreateConfigs(fb_format, fb_type, depth_bits_array,
 104                               stencil_bits_array, depth_buffer_factor,
 105                               back_buffer_modes, back_buffer_factor,
 106                               msaa_samples_array, 1);
 107    if (configs == NULL) {
 108       fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__, __LINE__);
 109       return NULL;
 110    }
 111
 112    return (const __DRIconfig **) configs;
 113 }
 114
 115
 116 /* Create the device specific screen private data struct.
 117  */
 118 static sisScreenPtr
 119 sisCreateScreen( __DRIscreen *sPriv )
 120 {
 121    sisScreenPtr sisScreen;
 122    SISDRIPtr sisDRIPriv = (SISDRIPtr)sPriv->pDevPriv;
 123
 124    if (sPriv->devPrivSize != sizeof(SISDRIRec)) {
 125       fprintf(stderr,"\nERROR!  sizeof(SISDRIRec) does not match passed size from device driver\n");
 126       return GL_FALSE;
 127    }
 128
 129    /* Allocate the private area */
 130    sisScreen = (sisScreenPtr)CALLOC( sizeof(*sisScreen) );
 131    if ( sisScreen == NULL )
 132       return NULL;
 133
 134    sisScreen->screenX = sisDRIPriv->width;
 135    sisScreen->screenY = sisDRIPriv->height;
 136    sisScreen->cpp = sisDRIPriv->bytesPerPixel;
 137    sisScreen->deviceID = sisDRIPriv->deviceID;
 138    sisScreen->AGPCmdBufOffset = sisDRIPriv->AGPCmdBufOffset;
 139    sisScreen->AGPCmdBufSize = sisDRIPriv->AGPCmdBufSize;
 140    sisScreen->sarea_priv_offset = sizeof(drm_sarea_t);
 141
 142    sisScreen->mmio.handle = sisDRIPriv->regs.handle;
 143    sisScreen->mmio.size   = sisDRIPriv->regs.size;
 144    if ( drmMap( sPriv->fd, sisScreen->mmio.handle, sisScreen->mmio.size,
 145                &sisScreen->mmio.map ) )
 146    {
 147       FREE( sisScreen );
 148       return NULL;
 149    }
 150
 151    if (sisDRIPriv->agp.size) {
 152       sisScreen->agp.handle = sisDRIPriv->agp.handle;
 153       sisScreen->agpBaseOffset = drmAgpBase(sPriv->fd);
 154       sisScreen->agp.size   = sisDRIPriv->agp.size;
 155       if ( drmMap( sPriv->fd, sisScreen->agp.handle, sisScreen->agp.size,
 156                    &sisScreen->agp.map ) )
 157       {
 158          sisScreen->agp.size = 0;
 159       }
 160    }
 161
 162    sisScreen->driScreen = sPriv;
 163
 164    /* parse information in __driConfigOptions */
 165    driParseOptionInfo(&sisScreen->optionCache,
 166                       __driConfigOptions, __driNConfigOptions);
 167
 168    return sisScreen;
 169 }
 170
 171 /* Destroy the device specific screen private data struct.
 172  */
 173 static void
 174 sisDestroyScreen( __DRIscreen *sPriv )
 175 {
 176    sisScreenPtr sisScreen = (sisScreenPtr)sPriv->private;
 177
 178    if ( sisScreen == NULL )
 179       return;
 180
 181    if (sisScreen->agp.size != 0)
 182       drmUnmap( sisScreen->agp.map, sisScreen->agp.size );
 183    drmUnmap( sisScreen->mmio.map, sisScreen->mmio.size );
 184
 185    FREE( sisScreen );
 186    sPriv->private = NULL;
 187 }
 188
 189
 190 /* Create and initialize the Mesa and driver specific pixmap buffer
 191  * data.
 192  */
 193 static GLboolean
 194 sisCreateBuffer( __DRIscreen *driScrnPriv,
 195                  __DRIdrawable *driDrawPriv,
 196                  const __GLcontextModes *mesaVis,
 197                  GLboolean isPixmap )
 198 {
 199    /*sisScreenPtr screen = (sisScreenPtr) driScrnPriv->private;*/
 200    struct gl_framebuffer *fb;
 201
 202    if (isPixmap)
 203       return GL_FALSE; /* not implemented */
 204
 205    fb = _mesa_create_framebuffer(mesaVis);
 206
 207    _mesa_add_soft_renderbuffers(fb,
 208                                 GL_FALSE, /* color */
 209                                 GL_FALSE, /* depth */
 210                                 mesaVis->stencilBits > 0,
 211                                 mesaVis->accumRedBits > 0,
 212                                 GL_FALSE, /* alpha */
 213                                 GL_FALSE /* aux */);
 214    driDrawPriv->driverPrivate = (void *) fb;
 215
 216    return (driDrawPriv->driverPrivate != NULL);
 217 }
 218
 219
 220 static void
 221 sisDestroyBuffer(__DRIdrawable *driDrawPriv)
 222 {
 223    _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
 224 }
 225
 226 static void sisCopyBuffer( __DRIdrawable *dPriv )
 227 {
 228    sisContextPtr smesa = (sisContextPtr)dPriv->driContextPriv->driverPrivate;
 229    int i;
 230
 231    while ((*smesa->FrameCountPtr) - MMIO_READ(0x8a2c) > SIS_MAX_FRAME_LENGTH)
 232       ;
 233
 234    LOCK_HARDWARE();
 235
 236    for (i = 0; i < dPriv->numClipRects; i++) {
 237       drm_clip_rect_t *box = &dPriv->pClipRects[i];
 238
 239       mWait3DCmdQueue(10);
 240       MMIO(REG_SRC_ADDR, smesa->back.offset);
 241       MMIO(REG_SRC_PITCH, smesa->back.pitch | ((smesa->bytesPerPixel == 4) ?
 242                            BLIT_DEPTH_32 : BLIT_DEPTH_16));
 243       MMIO(REG_SRC_X_Y, ((box->x1 - dPriv->x) << 16) | (box->y1 - dPriv->y));
 244       MMIO(REG_DST_X_Y, ((box->x1 - dPriv->x) << 16) | (box->y1 - dPriv->y));
 245       MMIO(REG_DST_ADDR, smesa->front.offset);
 246       MMIO(REG_DST_PITCH_HEIGHT, (smesa->virtualY << 16) | smesa->front.pitch);
 247       MMIO(REG_WIDTH_HEIGHT, ((box->y2 - box->y1) << 16) | (box->x2 - box->x1));
 248       MMIO(REG_BLIT_CMD, CMD_DIR_X_INC | CMD_DIR_Y_INC | CMD_ROP_SRC);
 249       MMIO(REG_CommandQueue, -1);
 250    }
 251
 252    *(GLint *)(smesa->IOBase+0x8a2c) = *smesa->FrameCountPtr;
 253    (*smesa->FrameCountPtr)++;
 254
 255    UNLOCK_HARDWARE ();
 256 }
 257
 258
 259 /* Copy the back color buffer to the front color buffer */
 260 static void
 261 sisSwapBuffers(__DRIdrawable *dPriv)
 262 {
 263    if (dPriv->driContextPriv && dPriv->driContextPriv->driverPrivate) {
 264          sisContextPtr smesa = (sisContextPtr) dPriv->driContextPriv->driverPrivate;
 265          GLcontext *ctx = smesa->glCtx;
 266
 267       if (ctx->Visual.doubleBufferMode) {
 268          _mesa_notifySwapBuffers( ctx );  /* flush pending rendering comands */
 269          sisCopyBuffer( dPriv );
 270       }
 271    } else {
 272       /* XXX this shouldn't be an error but we can't handle it for now */
 273       _mesa_problem(NULL, "%s: drawable has no context!", __FUNCTION__);
 274    }
 275 }
 276
 277
 278 /**
 279  * This is the driver specific part of the createNewScreen entry point.
 280  *
 281  * \todo maybe fold this into intelInitDriver
 282  *
 283  * \return the __GLcontextModes supported by this driver
 284  */
 285 static const __DRIconfig **
 286 sisInitScreen(__DRIscreen *psp)
 287 {
 288    static const __DRIversion ddx_expected = {0, 8, 0};
 289    static const __DRIversion dri_expected = {4, 0, 0};
 290    static const __DRIversion drm_expected = {1, 0, 0};
 291    static const char *driver_name = "SiS";
 292    SISDRIPtr dri_priv = (SISDRIPtr)psp->pDevPriv;
 293
 294    if (!driCheckDriDdxDrmVersions2(driver_name,
 295                                    &psp->dri_version, &dri_expected,
 296                                    &psp->ddx_version, &ddx_expected,
 297                                    &psp->drm_version, &drm_expected))
 298       return NULL;
 299
 300    psp->private = sisCreateScreen(psp);
 301
 302    if (!psp->private) {
 303       sisDestroyScreen(psp);
 304       return NULL;
 305    }
 306
 307    return sisFillInModes(psp, dri_priv->bytesPerPixel * 8);
 308 }
 309
 310 const struct __DriverAPIRec driDriverAPI = {
 311    .InitScreen      = sisInitScreen,
 312    .DestroyScreen   = sisDestroyScreen,
 313    .CreateContext   = sisCreateContext,
 314    .DestroyContext  = sisDestroyContext,
 315    .CreateBuffer    = sisCreateBuffer,
 316    .DestroyBuffer   = sisDestroyBuffer,
 317    .SwapBuffers     = sisSwapBuffers,
 318    .MakeCurrent     = sisMakeCurrent,
 319    .UnbindContext   = sisUnbindContext,
 320    .GetSwapInfo     = NULL,
 321    .GetDrawableMSC  = NULL,
 322    .WaitForMSC      = NULL,
 323    .WaitForSBC      = NULL,
 324    .SwapBuffersMSC  = NULL
 325
 326 };
 327
 328 /* This is the table of extensions that the loader will dlsym() for. */
 329 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 330     &driCoreExtension.base,
 331     &driLegacyExtension.base,
 332     NULL
 333 };