1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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/api_exec.h"
31 #include "main/context.h"
32 #include "main/samplerobj.h"
33 #include "main/shaderobj.h"
34 #include "main/version.h"
35 #include "main/vtxfmt.h"
36 #include "main/hash.h"
37 #include "program/prog_cache.h"
39 #include "glapi/glapi.h"
40 #include "st_context.h"
42 #include "st_cb_bitmap.h"
43 #include "st_cb_blit.h"
44 #include "st_cb_bufferobjects.h"
45 #include "st_cb_clear.h"
46 #include "st_cb_condrender.h"
47 #include "st_cb_drawpixels.h"
48 #include "st_cb_rasterpos.h"
49 #include "st_cb_drawtex.h"
50 #include "st_cb_eglimage.h"
51 #include "st_cb_fbo.h"
52 #include "st_cb_feedback.h"
53 #include "st_cb_msaa.h"
54 #include "st_cb_program.h"
55 #include "st_cb_queryobj.h"
56 #include "st_cb_readpixels.h"
57 #include "st_cb_texture.h"
58 #include "st_cb_xformfb.h"
59 #include "st_cb_flush.h"
60 #include "st_cb_syncobj.h"
61 #include "st_cb_strings.h"
62 #include "st_cb_texturebarrier.h"
63 #include "st_cb_viewport.h"
66 #include "st_extensions.h"
67 #include "st_gen_mipmap.h"
68 #include "st_program.h"
70 #include "st_texture.h"
71 #include "pipe/p_context.h"
72 #include "util/u_inlines.h"
73 #include "util/u_upload_mgr.h"
74 #include "cso_cache/cso_context.h"
77 DEBUG_GET_ONCE_BOOL_OPTION(mesa_mvp_dp4
, "MESA_MVP_DP4", FALSE
)
81 * Called via ctx->Driver.UpdateState()
83 void st_invalidate_state(struct gl_context
* ctx
, GLuint new_state
)
85 struct st_context
*st
= st_context(ctx
);
87 /* Replace _NEW_FRAG_CLAMP with ST_NEW_FRAGMENT_PROGRAM for the fallback. */
88 if (st
->clamp_frag_color_in_shader
&& (new_state
& _NEW_FRAG_CLAMP
)) {
89 new_state
&= ~_NEW_FRAG_CLAMP
;
90 st
->dirty
.st
|= ST_NEW_FRAGMENT_PROGRAM
;
93 /* Update the vertex shader if ctx->Light._ClampVertexColor was changed. */
94 if (st
->clamp_vert_color_in_shader
&& (new_state
& _NEW_LIGHT
)) {
95 st
->dirty
.st
|= ST_NEW_VERTEX_PROGRAM
;
98 st
->dirty
.mesa
|= new_state
;
99 st
->dirty
.st
|= ST_NEW_MESA
;
101 /* This is the only core Mesa module we depend upon.
102 * No longer use swrast, swsetup, tnl.
104 _vbo_InvalidateState(ctx
, new_state
);
109 st_destroy_context_priv(struct st_context
*st
)
113 st_destroy_atoms( st
);
114 st_destroy_draw( st
);
115 st_destroy_clear(st
);
116 st_destroy_bitmap(st
);
117 st_destroy_drawpix(st
);
118 st_destroy_drawtex(st
);
120 for (shader
= 0; shader
< ARRAY_SIZE(st
->state
.sampler_views
); shader
++) {
121 for (i
= 0; i
< ARRAY_SIZE(st
->state
.sampler_views
[0]); i
++) {
122 pipe_sampler_view_release(st
->pipe
,
123 &st
->state
.sampler_views
[shader
][i
]);
127 if (st
->default_texture
) {
128 st
->ctx
->Driver
.DeleteTexture(st
->ctx
, st
->default_texture
);
129 st
->default_texture
= NULL
;
132 u_upload_destroy(st
->uploader
);
133 if (st
->indexbuf_uploader
) {
134 u_upload_destroy(st
->indexbuf_uploader
);
136 if (st
->constbuf_uploader
) {
137 u_upload_destroy(st
->constbuf_uploader
);
140 cso_destroy_context(st
->cso_context
);
145 static struct st_context
*
146 st_create_context_priv( struct gl_context
*ctx
, struct pipe_context
*pipe
,
147 const struct st_config_options
*options
)
149 struct pipe_screen
*screen
= pipe
->screen
;
151 struct st_context
*st
= ST_CALLOC_STRUCT( st_context
);
153 st
->options
= *options
;
160 /* XXX: this is one-off, per-screen init: */
163 /* state tracker needs the VBO module */
164 _vbo_CreateContext(ctx
);
169 /* Create upload manager for vertex data for glBitmap, glDrawPixels,
172 st
->uploader
= u_upload_create(st
->pipe
, 65536, 4, PIPE_BIND_VERTEX_BUFFER
);
174 if (!screen
->get_param(screen
, PIPE_CAP_USER_INDEX_BUFFERS
)) {
175 st
->indexbuf_uploader
= u_upload_create(st
->pipe
, 128 * 1024, 4,
176 PIPE_BIND_INDEX_BUFFER
);
179 if (!screen
->get_param(screen
, PIPE_CAP_USER_CONSTANT_BUFFERS
)) {
181 screen
->get_param(screen
, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT
);
183 st
->constbuf_uploader
= u_upload_create(pipe
, 128 * 1024, alignment
,
184 PIPE_BIND_CONSTANT_BUFFER
);
187 st
->cso_context
= cso_create_context(pipe
);
194 /* Choose texture target for glDrawPixels, glBitmap, renderbuffers */
195 if (pipe
->screen
->get_param(pipe
->screen
, PIPE_CAP_NPOT_TEXTURES
))
196 st
->internal_target
= PIPE_TEXTURE_2D
;
198 st
->internal_target
= PIPE_TEXTURE_RECT
;
200 /* Vertex element objects used for drawing rectangles for glBitmap,
201 * glDrawPixels, glClear, etc.
203 for (i
= 0; i
< ARRAY_SIZE(st
->velems_util_draw
); i
++) {
204 memset(&st
->velems_util_draw
[i
], 0, sizeof(struct pipe_vertex_element
));
205 st
->velems_util_draw
[i
].src_offset
= i
* 4 * sizeof(float);
206 st
->velems_util_draw
[i
].instance_divisor
= 0;
207 st
->velems_util_draw
[i
].vertex_buffer_index
=
208 cso_get_aux_vertex_buffer_slot(st
->cso_context
);
209 st
->velems_util_draw
[i
].src_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
212 /* we want all vertex data to be placed in buffer objects */
213 vbo_use_buffer_objects(ctx
);
216 /* make sure that no VBOs are left mapped when we're drawing. */
217 vbo_always_unmap_buffers(ctx
);
221 st
->ctx
->FragmentProgram
._MaintainTexEnvProgram
= GL_TRUE
;
223 st
->ctx
->VertexProgram
._MaintainTnlProgram
= GL_TRUE
;
225 st
->pixel_xfer
.cache
= _mesa_new_program_cache();
227 st
->has_stencil_export
=
228 screen
->get_param(screen
, PIPE_CAP_SHADER_STENCIL_EXPORT
);
229 st
->has_shader_model3
= screen
->get_param(screen
, PIPE_CAP_SM3
);
230 st
->has_etc1
= screen
->is_format_supported(screen
, PIPE_FORMAT_ETC1_RGB8
,
232 PIPE_BIND_SAMPLER_VIEW
);
233 st
->has_etc2
= screen
->is_format_supported(screen
, PIPE_FORMAT_ETC2_RGB8
,
235 PIPE_BIND_SAMPLER_VIEW
);
236 st
->prefer_blit_based_texture_transfer
= screen
->get_param(screen
,
237 PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER
);
239 st
->needs_texcoord_semantic
=
240 screen
->get_param(screen
, PIPE_CAP_TGSI_TEXCOORD
);
241 st
->apply_texture_swizzle_to_border_color
=
242 !!(screen
->get_param(screen
, PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK
) &
243 (PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50
|
244 PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600
));
245 st
->has_time_elapsed
=
246 screen
->get_param(screen
, PIPE_CAP_QUERY_TIME_ELAPSED
);
248 /* GL limits and extensions */
249 st_init_limits(st
->pipe
->screen
, &ctx
->Const
, &ctx
->Extensions
);
250 st_init_extensions(st
->pipe
->screen
, &ctx
->Const
,
251 &ctx
->Extensions
, &st
->options
, ctx
->Mesa_DXTn
);
253 /* Enable shader-based fallbacks for ARB_color_buffer_float if needed. */
254 if (screen
->get_param(screen
, PIPE_CAP_VERTEX_COLOR_UNCLAMPED
)) {
255 if (!screen
->get_param(screen
, PIPE_CAP_VERTEX_COLOR_CLAMPED
)) {
256 st
->clamp_vert_color_in_shader
= GL_TRUE
;
259 if (!screen
->get_param(screen
, PIPE_CAP_FRAGMENT_COLOR_CLAMPED
)) {
260 st
->clamp_frag_color_in_shader
= GL_TRUE
;
263 /* For drivers which cannot do color clamping, it's better to just
264 * disable ARB_color_buffer_float in the core profile, because
265 * the clamping is deprecated there anyway. */
266 if (ctx
->API
== API_OPENGL_CORE
&&
267 (st
->clamp_frag_color_in_shader
|| st
->clamp_vert_color_in_shader
)) {
268 st
->clamp_vert_color_in_shader
= GL_FALSE
;
269 st
->clamp_frag_color_in_shader
= GL_FALSE
;
270 ctx
->Extensions
.ARB_color_buffer_float
= GL_FALSE
;
274 /* called after _mesa_create_context/_mesa_init_point, fix default user
275 * settable max point size up
277 st
->ctx
->Point
.MaxSize
= MAX2(ctx
->Const
.MaxPointSize
,
278 ctx
->Const
.MaxPointSizeAA
);
279 /* For vertex shaders, make sure not to emit saturate when SM 3.0 is not supported */
280 ctx
->Const
.ShaderCompilerOptions
[MESA_SHADER_VERTEX
].EmitNoSat
= !st
->has_shader_model3
;
282 _mesa_compute_version(ctx
);
284 if (ctx
->Version
== 0) {
285 /* This can happen when a core profile was requested, but the driver
286 * does not support some features of GL 3.1 or later.
288 st_destroy_context_priv(st
);
292 _mesa_initialize_dispatch_tables(ctx
);
293 _mesa_initialize_vbo_vtxfmt(ctx
);
298 static void st_init_driver_flags(struct gl_driver_flags
*f
)
300 f
->NewArray
= ST_NEW_VERTEX_ARRAYS
;
301 f
->NewRasterizerDiscard
= ST_NEW_RASTERIZER
;
302 f
->NewUniformBuffer
= ST_NEW_UNIFORM_BUFFER
;
305 struct st_context
*st_create_context(gl_api api
, struct pipe_context
*pipe
,
306 const struct gl_config
*visual
,
307 struct st_context
*share
,
308 const struct st_config_options
*options
)
310 struct gl_context
*ctx
;
311 struct gl_context
*shareCtx
= share
? share
->ctx
: NULL
;
312 struct dd_function_table funcs
;
313 struct st_context
*st
;
315 memset(&funcs
, 0, sizeof(funcs
));
316 st_init_driver_functions(&funcs
);
318 ctx
= _mesa_create_context(api
, visual
, shareCtx
, &funcs
);
323 st_init_driver_flags(&ctx
->DriverFlags
);
325 /* XXX: need a capability bit in gallium to query if the pipe
326 * driver prefers DP4 or MUL/MAD for vertex transformation.
328 if (debug_get_option_mesa_mvp_dp4())
329 ctx
->Const
.ShaderCompilerOptions
[MESA_SHADER_VERTEX
].OptimizeForAOS
= GL_TRUE
;
331 st
= st_create_context_priv(ctx
, pipe
, options
);
333 _mesa_destroy_context(ctx
);
341 * Callback to release the sampler view attached to a texture object.
342 * Called by _mesa_HashWalk().
345 destroy_tex_sampler_cb(GLuint id
, void *data
, void *userData
)
347 struct gl_texture_object
*texObj
= (struct gl_texture_object
*) data
;
348 struct st_context
*st
= (struct st_context
*) userData
;
350 st_texture_release_sampler_view(st
, st_texture_object(texObj
));
353 void st_destroy_context( struct st_context
*st
)
355 struct pipe_context
*pipe
= st
->pipe
;
356 struct gl_context
*ctx
= st
->ctx
;
359 _mesa_HashWalk(ctx
->Shared
->TexObjects
, destroy_tex_sampler_cb
, st
);
361 st_reference_fragprog(st
, &st
->fp
, NULL
);
362 st_reference_geomprog(st
, &st
->gp
, NULL
);
363 st_reference_vertprog(st
, &st
->vp
, NULL
);
365 /* release framebuffer surfaces */
366 for (i
= 0; i
< PIPE_MAX_COLOR_BUFS
; i
++) {
367 pipe_surface_reference(&st
->state
.framebuffer
.cbufs
[i
], NULL
);
369 pipe_surface_reference(&st
->state
.framebuffer
.zsbuf
, NULL
);
371 pipe
->set_index_buffer(pipe
, NULL
);
373 for (i
= 0; i
< PIPE_SHADER_TYPES
; i
++) {
374 pipe
->set_constant_buffer(pipe
, i
, 0, NULL
);
377 _mesa_delete_program_cache(st
->ctx
, st
->pixel_xfer
.cache
);
379 _vbo_DestroyContext(st
->ctx
);
381 st_destroy_program_variants(st
);
383 _mesa_free_context_data(ctx
);
385 /* This will free the st_context too, so 'st' must not be accessed
387 st_destroy_context_priv(st
);
390 pipe
->destroy( pipe
);
396 void st_init_driver_functions(struct dd_function_table
*functions
)
398 _mesa_init_shader_object_functions(functions
);
399 _mesa_init_sampler_object_functions(functions
);
401 functions
->Accum
= _mesa_accum
;
403 st_init_blit_functions(functions
);
404 st_init_bufferobject_functions(functions
);
405 st_init_clear_functions(functions
);
406 st_init_bitmap_functions(functions
);
407 st_init_drawpixels_functions(functions
);
408 st_init_rasterpos_functions(functions
);
410 st_init_drawtex_functions(functions
);
412 st_init_eglimage_functions(functions
);
414 st_init_fbo_functions(functions
);
415 st_init_feedback_functions(functions
);
416 st_init_msaa_functions(functions
);
417 st_init_program_functions(functions
);
418 st_init_query_functions(functions
);
419 st_init_cond_render_functions(functions
);
420 st_init_readpixels_functions(functions
);
421 st_init_texture_functions(functions
);
422 st_init_texture_barrier_functions(functions
);
423 st_init_flush_functions(functions
);
424 st_init_string_functions(functions
);
425 st_init_viewport_functions(functions
);
427 st_init_xformfb_functions(functions
);
428 st_init_syncobj_functions(functions
);
430 st_init_vdpau_functions(functions
);
432 functions
->UpdateState
= st_invalidate_state
;