1 /**************************************************************************
3 * Copyright 2003 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 **************************************************************************/
31 #include "main/mtypes.h"
32 #include "pipe/p_state.h"
33 #include "state_tracker/st_api.h"
34 #include "main/fbobject.h"
43 struct dd_function_table
;
46 struct gen_mipmap_state
;
48 struct st_fragment_program
;
49 struct st_perf_monitor_group
;
53 #define ST_NEW_MESA (1 << 0) /* Mesa state has changed */
54 #define ST_NEW_FRAGMENT_PROGRAM (1 << 1)
55 #define ST_NEW_VERTEX_PROGRAM (1 << 2)
56 #define ST_NEW_FRAMEBUFFER (1 << 3)
57 #define ST_NEW_TESS_STATE (1 << 4)
58 #define ST_NEW_GEOMETRY_PROGRAM (1 << 5)
59 #define ST_NEW_VERTEX_ARRAYS (1 << 6)
60 #define ST_NEW_RASTERIZER (1 << 7)
61 #define ST_NEW_UNIFORM_BUFFER (1 << 8)
62 #define ST_NEW_TESSCTRL_PROGRAM (1 << 9)
63 #define ST_NEW_TESSEVAL_PROGRAM (1 << 10)
64 #define ST_NEW_SAMPLER_VIEWS (1 << 11)
67 struct st_state_flags
{
72 struct st_tracked_state
{
74 struct st_state_flags dirty
;
75 void (*update
)( struct st_context
*st
);
82 struct st_context_iface iface
;
84 struct gl_context
*ctx
;
86 struct pipe_context
*pipe
;
88 struct u_upload_mgr
*uploader
, *indexbuf_uploader
, *constbuf_uploader
;
90 struct draw_context
*draw
; /**< For selection/feedback/rastpos only */
91 struct draw_stage
*feedback_stage
; /**< For GL_FEEDBACK rendermode */
92 struct draw_stage
*selection_stage
; /**< For GL_SELECT rendermode */
93 struct draw_stage
*rastpos_stage
; /**< For glRasterPos */
94 GLboolean clamp_frag_color_in_shader
;
95 GLboolean clamp_vert_color_in_shader
;
96 boolean has_stencil_export
; /**< can do shader stencil export? */
97 boolean has_time_elapsed
;
98 boolean has_shader_model3
;
101 boolean prefer_blit_based_texture_transfer
;
102 boolean force_persample_in_shader
;
103 boolean has_shareable_shaders
;
104 boolean has_half_float_packing
;
107 * If a shader can be created when we get its source.
108 * This means it has only 1 variant, not counting glBitmap and
111 boolean shader_has_one_variant
[MESA_SHADER_STAGES
];
113 boolean needs_texcoord_semantic
;
114 boolean apply_texture_swizzle_to_border_color
;
116 /* On old libGL's for linux we need to invalidate the drawables
117 * on glViewpport calls, this is set via a option.
119 boolean invalidate_on_gl_viewport
;
121 boolean vertex_array_out_of_memory
;
123 /* Some state is contained in constant objects.
124 * Other state is just parameter values.
127 struct pipe_blend_state blend
;
128 struct pipe_depth_stencil_alpha_state depth_stencil
;
129 struct pipe_rasterizer_state rasterizer
;
130 struct pipe_sampler_state samplers
[PIPE_SHADER_TYPES
][PIPE_MAX_SAMPLERS
];
131 GLuint num_samplers
[PIPE_SHADER_TYPES
];
132 struct pipe_sampler_view
*sampler_views
[PIPE_SHADER_TYPES
][PIPE_MAX_SAMPLERS
];
133 GLuint num_sampler_views
[PIPE_SHADER_TYPES
];
134 struct pipe_clip_state clip
;
138 } constants
[PIPE_SHADER_TYPES
];
139 struct pipe_framebuffer_state framebuffer
;
140 struct pipe_scissor_state scissor
[PIPE_MAX_VIEWPORTS
];
141 struct pipe_viewport_state viewport
[PIPE_MAX_VIEWPORTS
];
142 unsigned sample_mask
;
144 GLuint poly_stipple
[32]; /**< In OpenGL's bottom-to-top order */
146 GLuint fb_orientation
;
152 struct st_state_flags dirty
;
154 GLboolean vertdata_edgeflags
;
155 GLboolean edgeflag_culls_prims
;
157 /** Mapping from VARYING_SLOT_x to post-transformed vertex slot */
158 const GLuint
*vertex_result_to_slot
;
160 struct st_vertex_program
*vp
; /**< Currently bound vertex program */
161 struct st_fragment_program
*fp
; /**< Currently bound fragment program */
162 struct st_geometry_program
*gp
; /**< Currently bound geometry program */
163 struct st_tessctrl_program
*tcp
; /**< Currently bound tess control program */
164 struct st_tesseval_program
*tep
; /**< Currently bound tess eval program */
166 struct st_vp_variant
*vp_variant
;
167 struct st_fp_variant
*fp_variant
;
168 struct st_gp_variant
*gp_variant
;
169 struct st_tcp_variant
*tcp_variant
;
170 struct st_tep_variant
*tep_variant
;
172 struct gl_texture_object
*default_texture
;
175 struct pipe_resource
*pixelmap_texture
;
176 struct pipe_sampler_view
*pixelmap_sampler_view
;
181 struct pipe_rasterizer_state rasterizer
;
182 struct pipe_sampler_state samplers
[2];
183 enum pipe_format tex_format
;
185 struct bitmap_cache
*cache
;
188 /** for glDraw/CopyPixels */
191 void *vert_shaders
[2]; /**< ureg shaders */
196 struct pipe_rasterizer_state raster
;
197 struct pipe_viewport_state viewport
;
204 /** used for anything using util_draw_vertex_buffer */
205 struct pipe_vertex_element velems_util_draw
[3];
207 void *passthrough_fs
; /**< simple pass-through frag shader */
209 enum pipe_texture_target internal_target
;
211 struct cso_context
*cso_context
;
213 void *winsys_drawable_handle
;
215 /* The number of vertex buffers from the last call of validate_arrays. */
216 unsigned last_num_vbuffers
;
221 struct st_config_options options
;
223 struct st_perf_monitor_group
*perfmon
;
227 /* Need this so that we can implement Mesa callbacks in this module.
229 static inline struct st_context
*st_context(struct gl_context
*ctx
)
236 * Wrapper for struct gl_framebuffer.
237 * This is an opaque type to the outside world.
239 struct st_framebuffer
241 struct gl_framebuffer Base
;
244 struct st_framebuffer_iface
*iface
;
245 enum st_attachment_type statts
[ST_ATTACHMENT_COUNT
];
252 extern void st_init_driver_functions(struct pipe_screen
*screen
,
253 struct dd_function_table
*functions
);
255 void st_invalidate_state(struct gl_context
* ctx
, GLbitfield new_state
);
263 st_fb_orientation(const struct gl_framebuffer
*fb
)
265 if (fb
&& _mesa_is_winsys_fbo(fb
)) {
266 /* Drawing into a window (on-screen buffer).
268 * Negate Y scale to flip image vertically.
269 * The NDC Y coords prior to viewport transformation are in the range
270 * [y=-1=bottom, y=1=top]
271 * Hardware window coords are in the range [y=0=top, y=H-1=bottom] where
272 * H is the window height.
273 * Use the viewport transformation to invert Y.
278 /* Drawing into user-created FBO (very likely a texture).
280 * For textures, T=0=Bottom, so by extension Y=0=Bottom for rendering.
287 static inline unsigned
288 st_shader_stage_to_ptarget(gl_shader_stage stage
)
291 case MESA_SHADER_VERTEX
:
292 return PIPE_SHADER_VERTEX
;
293 case MESA_SHADER_FRAGMENT
:
294 return PIPE_SHADER_FRAGMENT
;
295 case MESA_SHADER_GEOMETRY
:
296 return PIPE_SHADER_GEOMETRY
;
297 case MESA_SHADER_TESS_CTRL
:
298 return PIPE_SHADER_TESS_CTRL
;
299 case MESA_SHADER_TESS_EVAL
:
300 return PIPE_SHADER_TESS_EVAL
;
301 case MESA_SHADER_COMPUTE
:
302 return PIPE_SHADER_COMPUTE
;
305 assert(!"should not be reached");
306 return PIPE_SHADER_VERTEX
;
310 /** clear-alloc a struct-sized object, with casting */
311 #define ST_CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T))
314 extern struct st_context
*
315 st_create_context(gl_api api
, struct pipe_context
*pipe
,
316 const struct gl_config
*visual
,
317 struct st_context
*share
,
318 const struct st_config_options
*options
);
321 st_destroy_context(struct st_context
*st
);