1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "i915_context.h"
29 #include "i915_winsys.h"
30 #include "i915_state.h"
31 #include "i915_batch.h"
32 #include "i915_texture.h"
35 #include "draw/draw_context.h"
36 #include "pipe/p_defines.h"
37 #include "pipe/p_winsys.h"
38 #include "pipe/p_util.h"
42 * Query format support for creating a texture, drawing surface, etc.
43 * \param format the format to test
44 * \param type one of PIPE_TEXTURE, PIPE_SURFACE
47 i915_is_format_supported( struct pipe_context
*pipe
,
48 enum pipe_format format
, uint type
)
50 static const enum pipe_format tex_supported
[] = {
51 PIPE_FORMAT_R8G8B8A8_UNORM
,
52 PIPE_FORMAT_A8R8G8B8_UNORM
,
53 PIPE_FORMAT_R5G6B5_UNORM
,
59 PIPE_FORMAT_YCBCR_REV
,
60 PIPE_FORMAT_S8Z24_UNORM
,
61 PIPE_FORMAT_NONE
/* list terminator */
63 static const enum pipe_format surface_supported
[] = {
64 PIPE_FORMAT_A8R8G8B8_UNORM
,
65 PIPE_FORMAT_R5G6B5_UNORM
,
66 PIPE_FORMAT_S8Z24_UNORM
,
67 /*PIPE_FORMAT_R16G16B16A16_SNORM,*/
68 PIPE_FORMAT_NONE
/* list terminator */
70 const enum pipe_format
*list
;
78 list
= surface_supported
;
84 for (i
= 0; list
[i
] != PIPE_FORMAT_NONE
; i
++) {
85 if (list
[i
] == format
)
94 i915_get_param(struct pipe_context
*pipe
, int param
)
97 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS
:
99 case PIPE_CAP_NPOT_TEXTURES
:
101 case PIPE_CAP_TWO_SIDED_STENCIL
:
107 case PIPE_CAP_ANISOTROPIC_FILTER
:
109 case PIPE_CAP_POINT_SPRITE
:
111 case PIPE_CAP_MAX_RENDER_TARGETS
:
113 case PIPE_CAP_OCCLUSION_QUERY
:
115 case PIPE_CAP_TEXTURE_SHADOW_MAP
:
117 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS
:
118 return 11; /* max 1024x1024 */
119 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS
:
120 return 8; /* max 128x128x128 */
121 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS
:
122 return 11; /* max 1024x1024 */
130 i915_get_paramf(struct pipe_context
*pipe
, int param
)
133 case PIPE_CAP_MAX_LINE_WIDTH
:
135 case PIPE_CAP_MAX_LINE_WIDTH_AA
:
138 case PIPE_CAP_MAX_POINT_WIDTH
:
140 case PIPE_CAP_MAX_POINT_WIDTH_AA
:
143 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY
:
146 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS
:
155 static void i915_destroy( struct pipe_context
*pipe
)
157 struct i915_context
*i915
= i915_context( pipe
);
159 draw_destroy( i915
->draw
);
168 i915_draw_elements( struct pipe_context
*pipe
,
169 struct pipe_buffer
*indexBuffer
,
171 unsigned prim
, unsigned start
, unsigned count
)
173 struct i915_context
*i915
= i915_context( pipe
);
174 struct draw_context
*draw
= i915
->draw
;
178 i915_update_derived( i915
);
183 for (i
= 0; i
< PIPE_ATTRIB_MAX
; i
++) {
184 if (i915
->vertex_buffer
[i
].buffer
) {
186 = pipe
->winsys
->buffer_map(pipe
->winsys
,
187 i915
->vertex_buffer
[i
].buffer
,
188 PIPE_BUFFER_USAGE_CPU_READ
);
189 draw_set_mapped_vertex_buffer(draw
, i
, buf
);
192 /* Map index buffer, if present */
195 = pipe
->winsys
->buffer_map(pipe
->winsys
, indexBuffer
,
196 PIPE_BUFFER_USAGE_CPU_READ
);
197 draw_set_mapped_element_buffer(draw
, indexSize
, mapped_indexes
);
200 /* no index/element buffer */
201 draw_set_mapped_element_buffer(draw
, 0, NULL
);
205 draw_set_mapped_constant_buffer(draw
,
206 i915
->current
.constants
[PIPE_SHADER_VERTEX
]);
209 draw_arrays(i915
->draw
, prim
, start
, count
);
212 * unmap vertex/index buffers
214 for (i
= 0; i
< PIPE_ATTRIB_MAX
; i
++) {
215 if (i915
->vertex_buffer
[i
].buffer
) {
216 pipe
->winsys
->buffer_unmap(pipe
->winsys
, i915
->vertex_buffer
[i
].buffer
);
217 draw_set_mapped_vertex_buffer(draw
, i
, NULL
);
221 pipe
->winsys
->buffer_unmap(pipe
->winsys
, indexBuffer
);
222 draw_set_mapped_element_buffer(draw
, 0, NULL
);
229 static boolean
i915_draw_arrays( struct pipe_context
*pipe
,
230 unsigned prim
, unsigned start
, unsigned count
)
232 return i915_draw_elements(pipe
, NULL
, 0, prim
, start
, count
);
237 struct pipe_context
*i915_create( struct pipe_winsys
*pipe_winsys
,
238 struct i915_winsys
*i915_winsys
,
241 struct i915_context
*i915
;
242 unsigned is_i945
= 0;
245 case PCI_CHIP_I915_G
:
246 case PCI_CHIP_I915_GM
:
249 case PCI_CHIP_I945_G
:
250 case PCI_CHIP_I945_GM
:
251 case PCI_CHIP_I945_GME
:
259 pipe_winsys
->printf(pipe_winsys
,
260 "%s: unknown pci id 0x%x, cannot create context\n",
261 __FUNCTION__
, pci_id
);
265 i915
= CALLOC_STRUCT(i915_context
);
269 i915
->winsys
= i915_winsys
;
270 i915
->pipe
.winsys
= pipe_winsys
;
272 i915
->pipe
.destroy
= i915_destroy
;
273 i915
->pipe
.is_format_supported
= i915_is_format_supported
;
274 i915
->pipe
.get_param
= i915_get_param
;
275 i915
->pipe
.get_paramf
= i915_get_paramf
;
277 i915
->pipe
.clear
= i915_clear
;
280 i915
->pipe
.draw_arrays
= i915_draw_arrays
;
281 i915
->pipe
.draw_elements
= i915_draw_elements
;
284 * Create drawing context and plug our rendering stage into it.
286 i915
->draw
= draw_create();
288 if (GETENV("I915_VBUF")) {
289 draw_set_rasterize_stage(i915
->draw
, i915_draw_vbuf_stage(i915
));
292 draw_set_rasterize_stage(i915
->draw
, i915_draw_render_stage(i915
));
295 i915_init_surface_functions(i915
);
296 i915_init_state_functions(i915
);
297 i915_init_flush_functions(i915
);
298 i915_init_string_functions(i915
);
300 i915
->pci_id
= pci_id
;
301 i915
->flags
.is_i945
= is_i945
;
303 i915
->pipe
.texture_create
= i915_texture_create
;
304 i915
->pipe
.texture_release
= i915_texture_release
;
305 i915
->pipe
.texture_update
= i915_texture_update
;
308 i915
->hardware_dirty
= ~0;
310 /* Batch stream debugging is a bit hacked up at the moment:
312 i915
->batch_start
= NULL
;
315 * XXX we could plug GL selection/feedback into the drawing pipeline
316 * by specifying a different setup/render stage.