src/mesa/pipe/i915simple/i915_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   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
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "main/imports.h"       /* CALLOC */
  29 #include "i915_context.h"
  30 #include "i915_winsys.h"
  31 #include "i915_state.h"
  32 #include "i915_batch.h"
  33 #include "i915_tex_layout.h"
  34
  35 #include "pipe/draw/draw_context.h"
  36 #include "pipe/p_defines.h"
  37 #include "pipe/p_winsys.h"
  38
  39 #define PCI_CHIP_I915_G                 0x2582
  40 #define PCI_CHIP_I915_GM                0x2592
  41 #define PCI_CHIP_I945_G                 0x2772
  42 #define PCI_CHIP_I945_GM                0x27A2
  43 #define PCI_CHIP_I945_GME               0x27AE
  44 #define PCI_CHIP_G33_G                  0x29C2
  45 #define PCI_CHIP_Q35_G                  0x29B2
  46 #define PCI_CHIP_Q33_G                  0x29D2
  47
  48
  49 /**
  50  * Return list of supported surface/texture formats.
  51  * If we find texture and drawable support differs, add a selector
  52  * parameter or another function.
  53  */
  54 static const GLuint *
  55 i915_supported_formats(struct pipe_context *pipe,
  56 //                         GLuint type,
  57                            GLuint *numFormats)
  58 {
  59 #if 0
  60    static const GLuint tex_supported[] = {
  61       PIPE_FORMAT_U_R8_G8_B8_A8,
  62       PIPE_FORMAT_U_A8_R8_G8_B8,
  63       PIPE_FORMAT_U_R5_G6_B5,
  64       PIPE_FORMAT_U_L8,
  65       PIPE_FORMAT_U_A8,
  66       PIPE_FORMAT_U_I8,
  67       PIPE_FORMAT_U_L8_A8,
  68       PIPE_FORMAT_YCBCR,
  69       PIPE_FORMAT_YCBCR_REV,
  70       PIPE_FORMAT_S8_Z24,
  71    };
  72
  73
  74    /* Actually a lot more than this - add later:
  75     */
  76    static const GLuint render_supported[] = {
  77       PIPE_FORMAT_U_A8_R8_G8_B8,
  78       PIPE_FORMAT_U_R5_G6_B5,
  79    };
  80
  81    /*
  82     */
  83    static const GLuint z_stencil_supported[] = {
  84       PIPE_FORMAT_U_Z16,
  85       PIPE_FORMAT_U_Z32,
  86       PIPE_FORMAT_S8_Z24,
  87    };
  88
  89    switch (type) {
  90    case PIPE_RENDER_FORMAT:
  91       *numFormats = Elements(render_supported);
  92       return render_supported;
  93
  94    case PIPE_TEX_FORMAT:
  95       *numFormats = Elements(tex_supported);
  96       return render_supported;
  97
  98    case PIPE_Z_STENCIL_FORMAT:
  99       *numFormats = Elements(render_supported);
 100       return render_supported;
 101
 102    default:
 103       *numFormats = 0;
 104       return NULL;
 105    }
 106 #else
 107    static const GLuint render_supported[] = {
 108       PIPE_FORMAT_U_A8_R8_G8_B8,
 109       PIPE_FORMAT_U_R5_G6_B5,
 110       PIPE_FORMAT_S8_Z24,
 111    };
 112    *numFormats = 3;
 113    return render_supported;
 114 #endif
 115 }
 116
 117
 118 /**
 119  * We might want to return max texture levels instead...
 120  */
 121 static void
 122 i915_max_texture_size(struct pipe_context *pipe, GLuint textureType,
 123                       GLuint *maxWidth, GLuint *maxHeight, GLuint *maxDepth)
 124 {
 125    switch (textureType) {
 126    case PIPE_TEXTURE_1D:
 127       *maxWidth = 2048;
 128       break;
 129    case PIPE_TEXTURE_2D:
 130       *maxWidth =
 131       *maxHeight = 2048;
 132       break;
 133    case PIPE_TEXTURE_3D:
 134       *maxWidth =
 135       *maxHeight =
 136       *maxDepth = 256;
 137       break;
 138    case PIPE_TEXTURE_CUBE:
 139       *maxWidth =
 140       *maxHeight = 2048;
 141       break;
 142    default:
 143       assert(0);
 144    }
 145 }
 146
 147
 148 static void i915_destroy( struct pipe_context *pipe )
 149 {
 150    struct i915_context *i915 = i915_context( pipe );
 151
 152    draw_destroy( i915->draw );
 153
 154    free( i915 );
 155 }
 156
 157 static void i915_draw_vb( struct pipe_context *pipe,
 158                              struct vertex_buffer *VB )
 159 {
 160    struct i915_context *i915 = i915_context( pipe );
 161
 162    if (i915->dirty)
 163       i915_update_derived( i915 );
 164
 165    draw_vb( i915->draw, VB );
 166 }
 167
 168
 169 static void
 170 i915_draw_vertices(struct pipe_context *pipe,
 171                        GLuint mode,
 172                        GLuint numVertex, const GLfloat *verts,
 173                        GLuint numAttribs, const GLuint attribs[])
 174 {
 175    struct i915_context *i915 = i915_context( pipe );
 176
 177    if (i915->dirty)
 178       i915_update_derived( i915 );
 179
 180    draw_vertices(i915->draw, mode, numVertex, verts, numAttribs, attribs);
 181 }
 182
 183
 184
 185
 186 struct pipe_context *i915_create( struct pipe_winsys *pipe_winsys,
 187                                   struct i915_winsys *i915_winsys,
 188                                   unsigned pci_id )
 189 {
 190    struct i915_context *i915;
 191    unsigned is_i945 = 0;
 192
 193    /* TODO: Push this down into the pipe driver:
 194     */
 195    switch (pci_id) {
 196    case PCI_CHIP_I915_G:
 197    case PCI_CHIP_I915_GM:
 198       break;
 199
 200    case PCI_CHIP_I945_G:
 201    case PCI_CHIP_I945_GM:
 202    case PCI_CHIP_I945_GME:
 203    case PCI_CHIP_G33_G:
 204    case PCI_CHIP_Q33_G:
 205    case PCI_CHIP_Q35_G:
 206       is_i945 = 1;
 207       break;
 208
 209    default:
 210       pipe_winsys->printf(pipe_winsys,
 211                           "%s: unknown pci id 0x%x, cannot create context\n",
 212                           __FUNCTION__, pci_id);
 213       return NULL;
 214    }
 215
 216    i915 = CALLOC_STRUCT(i915_context);
 217    if (i915 == NULL)
 218       return NULL;
 219
 220    i915->winsys = i915_winsys;
 221    i915->pipe.winsys = pipe_winsys;
 222
 223    i915->pipe.destroy = i915_destroy;
 224    i915->pipe.supported_formats = i915_supported_formats;
 225    i915->pipe.max_texture_size = i915_max_texture_size;
 226    i915->pipe.draw_vb = i915_draw_vb;
 227    i915->pipe.draw_vertices = i915_draw_vertices;
 228    i915->pipe.clear = i915_clear;
 229    i915->pipe.reset_occlusion_counter = NULL; /* no support */
 230    i915->pipe.get_occlusion_counter = NULL;
 231
 232
 233    /*
 234     * Create drawing context and plug our rendering stage into it.
 235     */
 236    i915->draw = draw_create();
 237    assert(i915->draw);
 238    draw_set_setup_stage(i915->draw, i915_draw_render_stage(i915));
 239
 240    i915_init_region_functions(i915);
 241    i915_init_surface_functions(i915);
 242    i915_init_state_functions(i915);
 243    i915_init_flush_functions(i915);
 244
 245
 246    if (i915->flags.is_i945)
 247       i915->pipe.mipmap_tree_layout = i945_miptree_layout;
 248    else
 249       i915->pipe.mipmap_tree_layout = i945_miptree_layout;
 250
 251
 252    i915->dirty = ~0;
 253    i915->hardware_dirty = ~0;
 254
 255    /* Batch stream debugging is a bit hacked up at the moment:
 256     */
 257    i915->batch_start = BEGIN_BATCH(0, 0);
 258
 259    /*
 260     * XXX we could plug GL selection/feedback into the drawing pipeline
 261     * by specifying a different setup/render stage.
 262     */
 263
 264    return &i915->pipe;
 265 }
 266