1 /**************************************************************************
3 * Copyright 2007 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 "main/imports.h"
29 #include "main/accum.h"
30 #include "main/context.h"
31 #include "main/samplerobj.h"
32 #include "main/shaderobj.h"
33 #include "program/prog_cache.h"
35 #include "glapi/glapi.h"
36 #include "st_context.h"
38 #include "st_cb_bitmap.h"
39 #include "st_cb_blit.h"
40 #include "st_cb_bufferobjects.h"
41 #include "st_cb_clear.h"
42 #include "st_cb_condrender.h"
43 #include "st_cb_drawpixels.h"
44 #include "st_cb_rasterpos.h"
45 #include "st_cb_drawtex.h"
46 #include "st_cb_eglimage.h"
47 #include "st_cb_fbo.h"
48 #include "st_cb_feedback.h"
49 #include "st_cb_program.h"
50 #include "st_cb_queryobj.h"
51 #include "st_cb_readpixels.h"
52 #include "st_cb_texture.h"
53 #include "st_cb_xformfb.h"
54 #include "st_cb_flush.h"
55 #include "st_cb_syncobj.h"
56 #include "st_cb_strings.h"
57 #include "st_cb_texturebarrier.h"
58 #include "st_cb_viewport.h"
61 #include "st_extensions.h"
62 #include "st_gen_mipmap.h"
63 #include "st_program.h"
64 #include "pipe/p_context.h"
65 #include "util/u_inlines.h"
66 #include "util/u_upload_mgr.h"
67 #include "cso_cache/cso_context.h"
68 #include "util/u_vbuf.h"
71 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4
, "MESA_MVP_DP4", FALSE
)
75 * Called via ctx->Driver.UpdateState()
77 void st_invalidate_state(struct gl_context
* ctx
, GLuint new_state
)
79 struct st_context
*st
= st_context(ctx
);
81 /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
82 if (st
->clamp_frag_color_in_shader
&& (new_state
& _NEW_FRAG_CLAMP
)) {
83 new_state
&= ~_NEW_FRAG_CLAMP
;
84 st
->dirty
.st
|= ST_NEW_FRAGMENT_PROGRAM
;
87 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
88 if (st
->clamp_vert_color_in_shader
&& (new_state
& _NEW_LIGHT
)) {
89 st
->dirty
.st
|= ST_NEW_VERTEX_PROGRAM
;
92 st
->dirty
.mesa
|= new_state
;
93 st
->dirty
.st
|= ST_NEW_MESA
;
95 /* This is the only core Mesa module we depend upon.
96 * No longer use swrast, swsetup, tnl.
98 _vbo_InvalidateState(ctx
, new_state
);
103 * Check for multisample env var override.
108 const char *msaa
= _mesa_getenv("__GL_FSAA_MODE");
115 static void st_init_vbuf(struct st_context
*st
)
117 struct u_vbuf_caps caps
;
119 u_vbuf_get_caps(st
->pipe
->screen
, &caps
);
121 /* Create u_vbuf if there is anything unsupported. */
122 if (!caps
.buffer_offset_unaligned
||
123 !caps
.buffer_stride_unaligned
||
124 !caps
.velem_src_offset_unaligned
||
125 !caps
.format_fixed32
||
126 !caps
.format_float16
||
127 !caps
.format_float64
||
128 !caps
.format_norm32
||
129 !caps
.format_scaled32
||
130 !caps
.user_vertex_buffers
) {
131 /* XXX user vertex buffers are always uploaded regardless of the CAP. */
132 st
->vbuf
= u_vbuf_create(st
->pipe
, &caps
);
133 cso_install_vbuf(st
->cso_context
, st
->vbuf
);
138 static struct st_context
*
139 st_create_context_priv( struct gl_context
*ctx
, struct pipe_context
*pipe
)
141 struct pipe_screen
*screen
= pipe
->screen
;
143 struct st_context
*st
= ST_CALLOC_STRUCT( st_context
);
150 /* XXX: this is one-off, per-screen init: */
153 /* state tracker needs the VBO module */
154 _vbo_CreateContext(ctx
);
159 st
->uploader
= u_upload_create(st
->pipe
, 65536, 4, PIPE_BIND_VERTEX_BUFFER
);
161 if (!screen
->get_param(screen
, PIPE_CAP_USER_INDEX_BUFFERS
)) {
162 st
->indexbuf_uploader
= u_upload_create(st
->pipe
, 128 * 1024, 4,
163 PIPE_BIND_INDEX_BUFFER
);
166 if (!screen
->get_param(screen
, PIPE_CAP_USER_CONSTANT_BUFFERS
)) {
168 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
170 st
->constbuf_uploader
= u_upload_create(pipe
, 128 * 1024, alignment
,
171 PIPE_BIND_CONSTANT_BUFFER
);
174 st
->cso_context
= cso_create_context(pipe
);
181 st_init_generate_mipmap(st
);
184 if(pipe
->screen
->get_param(pipe
->screen
, PIPE_CAP_NPOT_TEXTURES
))
185 st
->internal_target
= PIPE_TEXTURE_2D
;
187 st
->internal_target
= PIPE_TEXTURE_RECT
;
189 for (i
= 0; i
< 3; i
++) {
190 memset(&st
->velems_util_draw
[i
], 0, sizeof(struct pipe_vertex_element
));
191 st
->velems_util_draw
[i
].src_offset
= i
* 4 * sizeof(float);
192 st
->velems_util_draw
[i
].instance_divisor
= 0;
193 st
->velems_util_draw
[i
].vertex_buffer_index
= 0;
194 st
->velems_util_draw
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
197 /* we want all vertex data to be placed in buffer objects */
198 vbo_use_buffer_objects(ctx
);
201 /* make sure that no VBOs are left mapped when we're drawing. */
202 vbo_always_unmap_buffers(ctx
);
206 st
->ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
208 st
->ctx
->VertexProgram
._MaintainTnlProgram
= GL_TRUE
;
210 st
->pixel_xfer
.cache
= _mesa_new_program_cache();
212 st
->force_msaa
= st_get_msaa();
214 /* GL limits and extensions */
216 st_init_extensions(st
);
222 struct st_context
*st_create_context(gl_api api
, struct pipe_context
*pipe
,
223 const struct gl_config
*visual
,
224 struct st_context
*share
)
226 struct gl_context
*ctx
;
227 struct gl_context
*shareCtx
= share
? share
->ctx
: NULL
;
228 struct dd_function_table funcs
;
231 assert(MESA_SHADER_VERTEX
== PIPE_SHADER_VERTEX
);
232 assert(MESA_SHADER_FRAGMENT
== PIPE_SHADER_FRAGMENT
);
233 assert(MESA_SHADER_GEOMETRY
== PIPE_SHADER_GEOMETRY
);
235 memset(&funcs
, 0, sizeof(funcs
));
236 st_init_driver_functions(&funcs
);
238 ctx
= _mesa_create_context(api
, visual
, shareCtx
, &funcs
, NULL
);
243 /* XXX: need a capability bit in gallium to query if the pipe
244 * driver prefers DP4 or MUL/MAD for vertex transformation.
246 if (debug_get_option_mesa_mvp_dp4())
247 _mesa_set_mvp_with_dp4( ctx
, GL_TRUE
);
249 return st_create_context_priv(ctx
, pipe
);
253 static void st_destroy_context_priv( struct st_context
*st
)
257 st_destroy_atoms( st
);
258 st_destroy_draw( st
);
259 st_destroy_generate_mipmap(st
);
261 st_destroy_clear(st
);
262 st_destroy_bitmap(st
);
263 st_destroy_drawpix(st
);
264 st_destroy_drawtex(st
);
266 for (i
= 0; i
< Elements(st
->state
.sampler_views
); i
++) {
267 pipe_sampler_view_reference(&st
->state
.sampler_views
[i
], NULL
);
270 if (st
->default_texture
) {
271 st
->ctx
->Driver
.DeleteTexture(st
->ctx
, st
->default_texture
);
272 st
->default_texture
= NULL
;
275 u_upload_destroy(st
->uploader
);
276 if (st
->indexbuf_uploader
) {
277 u_upload_destroy(st
->indexbuf_uploader
);
279 if (st
->constbuf_uploader
) {
280 u_upload_destroy(st
->constbuf_uploader
);
286 void st_destroy_context( struct st_context
*st
)
288 struct pipe_context
*pipe
= st
->pipe
;
289 struct u_vbuf
*vbuf
= st
->vbuf
;
290 struct cso_context
*cso
= st
->cso_context
;
291 struct gl_context
*ctx
= st
->ctx
;
294 /* need to unbind and destroy CSO objects before anything else */
295 cso_release_all(st
->cso_context
);
297 st_reference_fragprog(st
, &st
->fp
, NULL
);
298 st_reference_vertprog(st
, &st
->vp
, NULL
);
300 /* release framebuffer surfaces */
301 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
302 pipe_surface_reference(&st
->state
.framebuffer
.cbufs
[i
], NULL
);
304 pipe_surface_reference(&st
->state
.framebuffer
.zsbuf
, NULL
);
306 pipe
->set_index_buffer(pipe
, NULL
);
308 for (i
= 0; i
< PIPE_SHADER_TYPES
; i
++) {
309 pipe
->set_constant_buffer(pipe
, i
, 0, NULL
);
312 _mesa_delete_program_cache(st
->ctx
, st
->pixel_xfer
.cache
);
314 _vbo_DestroyContext(st
->ctx
);
316 st_destroy_program_variants(st
);
318 _mesa_free_context_data(ctx
);
320 /* This will free the st_context too, so 'st' must not be accessed
322 st_destroy_context_priv(st
);
326 u_vbuf_destroy(vbuf
);
328 cso_destroy_context(cso
);
330 pipe
->destroy( pipe
);
336 void st_init_driver_functions(struct dd_function_table
*functions
)
338 _mesa_init_shader_object_functions(functions
);
339 _mesa_init_sampler_object_functions(functions
);
341 functions
->Accum
= _mesa_accum
;
343 st_init_blit_functions(functions
);
344 st_init_bufferobject_functions(functions
);
345 st_init_clear_functions(functions
);
346 st_init_bitmap_functions(functions
);
347 st_init_drawpixels_functions(functions
);
348 st_init_rasterpos_functions(functions
);
350 st_init_drawtex_functions(functions
);
352 st_init_eglimage_functions(functions
);
354 st_init_fbo_functions(functions
);
355 st_init_feedback_functions(functions
);
356 st_init_program_functions(functions
);
357 st_init_query_functions(functions
);
358 st_init_cond_render_functions(functions
);
359 st_init_readpixels_functions(functions
);
360 st_init_texture_functions(functions
);
361 st_init_texture_barrier_functions(functions
);
362 st_init_flush_functions(functions
);
363 st_init_string_functions(functions
);
364 st_init_viewport_functions(functions
);
366 st_init_xformfb_functions(functions
);
367 st_init_syncobj_functions(functions
);
369 functions
->UpdateState
= st_invalidate_state
;