src/mesa/drivers/dri/unichrome/via_fb.c

   1 /*
   2  * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sub license,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <assert.h>
  26
  27 #include "via_context.h"
  28 #include "via_ioctl.h"
  29 #include "via_fb.h"
  30 #include "xf86drm.h"
  31 #include <sys/ioctl.h>
  32
  33 GLboolean
  34 via_alloc_back_buffer(viaContextPtr vmesa)
  35 {
  36     drm_via_mem_t fb;
  37     unsigned char *pFB;
  38     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  39     fb.context = vmesa->hHWContext;
  40     fb.size = vmesa->back.size;
  41     fb.type = VIDEO;
  42     if (VIA_DEBUG) fprintf(stderr, "context = %d, size =%d, type = %d\n", fb.context, fb.size, fb.type);
  43     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb))
  44         return GL_FALSE;
  45
  46     pFB = vmesa->driScreen->pFB;
  47
  48     vmesa->back.offset = fb.offset;
  49     vmesa->back.map = (char *)(fb.offset + (GLuint)pFB);
  50     vmesa->back.index = fb.index;
  51     if (VIA_DEBUG) {
  52         fprintf(stderr, "back offset = %08x\n", vmesa->back.offset);
  53         fprintf(stderr, "back index = %d\n", vmesa->back.index);
  54     }
  55
  56     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
  57     return GL_TRUE;
  58 }
  59
  60 GLboolean
  61 via_alloc_front_buffer(viaContextPtr vmesa)
  62 {
  63     drm_via_mem_t fb;
  64     unsigned char *pFB;
  65     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
  66     fb.context = vmesa->hHWContext;
  67     fb.size = vmesa->back.size;
  68     fb.type = VIDEO;
  69     if (VIA_DEBUG) fprintf(stderr, "context = %d, size =%d, type = %d\n", fb.context, fb.size, fb.type);
  70     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb))
  71         return GL_FALSE;
  72
  73     pFB = vmesa->driScreen->pFB;
  74
  75     vmesa->front.offset = fb.offset;
  76     vmesa->front.map = (char *)(fb.offset + (GLuint)pFB);
  77     vmesa->front.index = fb.index;
  78     if (VIA_DEBUG) {
  79         fprintf(stderr, "front offset = %08x\n", vmesa->front.offset);
  80         fprintf(stderr, "front index = %d\n", vmesa->front.index);
  81     }
  82
  83
  84     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
  85     return GL_TRUE;
  86 }
  87
  88 void
  89 via_free_back_buffer(viaContextPtr vmesa)
  90 {
  91     drm_via_mem_t fb;
  92
  93     if (!vmesa) return;
  94     fb.context = vmesa->hHWContext;
  95     fb.index = vmesa->back.index;
  96     fb.type = VIDEO;
  97     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
  98     vmesa->back.map = NULL;
  99 }
 100
 101 void
 102 via_free_front_buffer(viaContextPtr vmesa)
 103 {
 104     drm_via_mem_t fb;
 105
 106     if (!vmesa) return;
 107     fb.context = vmesa->hHWContext;
 108     fb.index = vmesa->front.index;
 109     fb.type = VIDEO;
 110     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
 111     vmesa->front.map = NULL;
 112 }
 113
 114 GLboolean
 115 via_alloc_depth_buffer(viaContextPtr vmesa)
 116 {
 117     drm_via_mem_t fb;
 118     unsigned char *pFB;
 119     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 120     fb.context = vmesa->hHWContext;
 121     fb.size = vmesa->depth.size;
 122     fb.type = VIDEO;
 123
 124     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 125         return GL_FALSE;
 126     }
 127
 128     pFB = vmesa->driScreen->pFB;
 129
 130     vmesa->depth.offset = fb.offset;
 131     vmesa->depth.map = (char *)(fb.offset + (GLuint)pFB);
 132     vmesa->depth.index = fb.index;
 133     if (VIA_DEBUG) {
 134         fprintf(stderr, "depth offset = %08x\n", vmesa->depth.offset);
 135         fprintf(stderr, "depth index = %d\n", vmesa->depth.index);
 136     }
 137
 138     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 139     return GL_TRUE;
 140 }
 141
 142 void
 143 via_free_depth_buffer(viaContextPtr vmesa)
 144 {
 145     drm_via_mem_t fb;
 146
 147     if (!vmesa) return;
 148     fb.context = vmesa->hHWContext;
 149     fb.index = vmesa->depth.index;
 150     fb.type = VIDEO;
 151     ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb);
 152     vmesa->depth.map = NULL;
 153 }
 154
 155 GLboolean
 156 via_alloc_dma_buffer(viaContextPtr vmesa)
 157 {
 158   drmVIADMAInit init;
 159
 160     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 161     vmesa->dma = (GLuint *) malloc(VIA_DMA_BUFSIZ);
 162
 163     /*
 164      * Check whether AGP DMA has been initialized.
 165      */
 166
 167     init.func = VIA_DMA_INITIALIZED;
 168     vmesa->useAgp =
 169       ( 0 == drmCommandWrite(vmesa->driFd, DRM_VIA_DMA_INIT,
 170                              &init, sizeof(init)));
 171     if (vmesa->useAgp)
 172         printf("unichrome_dri.so: Using AGP.\n");
 173     else
 174         printf("unichrome_dri.so: Using PCI.\n");
 175
 176     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 177     return ((vmesa->dma) ? GL_TRUE : GL_FALSE);
 178 }
 179
 180 void
 181 via_free_dma_buffer(viaContextPtr vmesa)
 182 {
 183     if (!vmesa) return;
 184     free(vmesa->dma);
 185     vmesa->dma = 0;
 186 }
 187
 188 GLboolean
 189 via_alloc_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 190 {
 191     drm_via_mem_t fb;
 192     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 193     fb.context = vmesa->hHWContext;
 194     fb.size = t->texMem.size;
 195     fb.type = VIDEO;
 196     if (VIA_DEBUG) {
 197         fprintf(stderr, "texture size = %d\n", fb.size);
 198         fprintf(stderr, "texture type = %d\n", fb.type);
 199     }
 200     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 201         fprintf(stderr, "via_alloc_texture fail\n");
 202         return GL_FALSE;
 203     }
 204
 205     t->texMem.offset = fb.offset;
 206     t->texMem.index = fb.index;
 207     if (VIA_DEBUG) fprintf(stderr, "texture index = %d\n", (GLuint)fb.index);
 208
 209     t->bufAddr = (unsigned char *)(fb.offset + (GLuint)vmesa->driScreen->pFB);
 210     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 211     return GL_TRUE;
 212 }
 213 /*=* John Sheng [2003.5.31]  agp tex *=*/
 214 GLboolean
 215 via_alloc_texture_agp(viaContextPtr vmesa, viaTextureObjectPtr t)
 216 {
 217     drm_via_mem_t fb;
 218     if (VIA_DEBUG) fprintf(stderr, "%s - in\n", __FUNCTION__);
 219     fb.context = vmesa->hHWContext;
 220     fb.size = t->texMem.size;
 221     fb.type = AGP;
 222     if (VIA_DEBUG) {
 223         fprintf(stderr, "texture_agp size = %d\n", fb.size);
 224         fprintf(stderr, "texture type = %d\n", fb.type);
 225     }
 226     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_ALLOCMEM, &fb)) {
 227         fprintf(stderr, "via_alloc_texture_agp fail\n");
 228         return GL_FALSE;
 229     }
 230
 231     t->texMem.offset = fb.offset;
 232     t->texMem.index = fb.index;
 233     if (VIA_DEBUG) fprintf(stderr, "texture agp index = %d\n", (GLuint)fb.index);
 234
 235     t->bufAddr = (unsigned char *)((GLuint)vmesa->viaScreen->agpLinearStart + fb.offset);
 236     /*=* John Sheng [2003.5.31]  agp tex *=*/
 237     t->inAGP = GL_TRUE;
 238     if (VIA_DEBUG) fprintf(stderr, "%s - out\n", __FUNCTION__);
 239     return GL_TRUE;
 240 }
 241
 242 void
 243 via_free_texture(viaContextPtr vmesa, viaTextureObjectPtr t)
 244 {
 245     drm_via_mem_t fb;
 246     if (VIA_DEBUG) {
 247         fprintf(stderr, "via_free_texture: index = %d\n",
 248             t->texMem.index);
 249         fprintf(stderr, "via_free_texture: size = %d\n",
 250             t->texMem.size);
 251     }
 252     if (!vmesa) {
 253         fprintf(stderr, "!mesa\n");
 254         return;
 255     }
 256
 257     fb.context = vmesa->hHWContext;
 258     fb.index = t->texMem.index;
 259
 260     /*=* John Sheng [2003.5.31]  agp tex *=*/
 261     if(t->inAGP)
 262         fb.type = AGP;
 263     else
 264         fb.type = VIDEO;
 265
 266     if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 267         if(vmesa->shareCtx) {
 268             fb.context = ((viaContextPtr)((GLcontext *)(vmesa->shareCtx)->DriverCtx))->hHWContext;
 269             if (ioctl(vmesa->driFd, DRM_IOCTL_VIA_FREEMEM, &fb)) {
 270                 fprintf(stderr, "via_free_texture fail\n");
 271             }
 272         }
 273         else
 274             fprintf(stderr, "via_free_texture fail\n");
 275     }
 276
 277     t->bufAddr = NULL;
 278 }