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;
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)
65 #define ST_NEW_ATOMIC_BUFFER (1 << 12)
66 #define ST_NEW_STORAGE_BUFFER (1 << 13)
67 #define ST_NEW_COMPUTE_PROGRAM (1 << 14)
68 #define ST_NEW_IMAGE_UNITS (1 << 15)
71 struct st_state_flags {
72 GLbitfield mesa; /**< Mask of _NEW_x flags */
73 uint64_t st; /**< Mask of ST_NEW_x flags */
76 struct st_tracked_state {
78 struct st_state_flags dirty;
79 void (*update)( struct st_context *st );
84 * Enumeration of state tracker pipelines.
92 /** For drawing quads for glClear, glDraw/CopyPixels, glBitmap, etc. */
103 struct st_context_iface iface;
105 struct gl_context *ctx;
107 struct pipe_context *pipe;
109 struct u_upload_mgr *uploader, *indexbuf_uploader, *constbuf_uploader;
111 struct draw_context *draw; /**< For selection/feedback/rastpos only */
112 struct draw_stage *feedback_stage; /**< For GL_FEEDBACK rendermode */
113 struct draw_stage *selection_stage; /**< For GL_SELECT rendermode */
114 struct draw_stage *rastpos_stage; /**< For glRasterPos */
115 GLboolean clamp_frag_color_in_shader;
116 GLboolean clamp_vert_color_in_shader;
117 boolean has_stencil_export; /**< can do shader stencil export? */
118 boolean has_time_elapsed;
119 boolean has_shader_model3;
122 boolean prefer_blit_based_texture_transfer;
123 boolean force_persample_in_shader;
124 boolean has_shareable_shaders;
125 boolean has_half_float_packing;
126 boolean has_multi_draw_indirect;
129 * If a shader can be created when we get its source.
130 * This means it has only 1 variant, not counting glBitmap and
133 boolean shader_has_one_variant[MESA_SHADER_STAGES];
135 boolean needs_texcoord_semantic;
136 boolean apply_texture_swizzle_to_border_color;
138 /* On old libGL's for linux we need to invalidate the drawables
139 * on glViewpport calls, this is set via a option.
141 boolean invalidate_on_gl_viewport;
143 boolean vertex_array_out_of_memory;
145 /* Some state is contained in constant objects.
146 * Other state is just parameter values.
149 struct pipe_blend_state blend;
150 struct pipe_depth_stencil_alpha_state depth_stencil;
151 struct pipe_rasterizer_state rasterizer;
152 struct pipe_sampler_state samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
153 GLuint num_samplers[PIPE_SHADER_TYPES];
154 struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
155 GLuint num_sampler_views[PIPE_SHADER_TYPES];
156 struct pipe_clip_state clip;
160 } constants[PIPE_SHADER_TYPES];
161 struct pipe_framebuffer_state framebuffer;
162 struct pipe_scissor_state scissor[PIPE_MAX_VIEWPORTS];
163 struct pipe_viewport_state viewport[PIPE_MAX_VIEWPORTS];
164 unsigned sample_mask;
166 GLuint poly_stipple[32]; /**< In OpenGL's bottom-to-top order */
168 GLuint fb_orientation;
174 struct st_state_flags dirty;
175 struct st_state_flags dirty_cp;
177 GLboolean vertdata_edgeflags;
178 GLboolean edgeflag_culls_prims;
180 /** Mapping from VARYING_SLOT_x to post-transformed vertex slot */
181 const GLuint *vertex_result_to_slot;
183 struct st_vertex_program *vp; /**< Currently bound vertex program */
184 struct st_fragment_program *fp; /**< Currently bound fragment program */
185 struct st_geometry_program *gp; /**< Currently bound geometry program */
186 struct st_tessctrl_program *tcp; /**< Currently bound tess control program */
187 struct st_tesseval_program *tep; /**< Currently bound tess eval program */
188 struct st_compute_program *cp; /**< Currently bound compute program */
190 struct st_vp_variant *vp_variant;
191 struct st_fp_variant *fp_variant;
192 struct st_basic_variant *gp_variant;
193 struct st_basic_variant *tcp_variant;
194 struct st_basic_variant *tep_variant;
195 struct st_basic_variant *cp_variant;
197 struct gl_texture_object *default_texture;
200 struct pipe_resource *pixelmap_texture;
201 struct pipe_sampler_view *pixelmap_sampler_view;
206 struct pipe_rasterizer_state rasterizer;
207 struct pipe_sampler_state sampler;
208 struct pipe_sampler_state atlas_sampler;
209 enum pipe_format tex_format;
211 struct bitmap_cache *cache;
214 /** for glDraw/CopyPixels */
217 void *vert_shaders[2]; /**< ureg shaders */
221 GLsizei width, height;
223 const void *user_pointer; /**< Last user 'pixels' pointer */
224 void *image; /**< Copy of the glDrawPixels image data */
225 struct pipe_resource *texture;
230 struct pipe_rasterizer_state raster;
231 struct pipe_viewport_state viewport;
238 /* For gl(Compressed)Tex(Sub)Image */
240 struct pipe_rasterizer_state raster;
241 struct pipe_blend_state blend;
251 /** for drawing with st_util_vertex */
252 struct pipe_vertex_element util_velems[3];
254 void *passthrough_fs; /**< simple pass-through frag shader */
256 enum pipe_texture_target internal_target;
258 struct cso_context *cso_context;
260 void *winsys_drawable_handle;
262 /* The number of vertex buffers from the last call of validate_arrays. */
263 unsigned last_num_vbuffers;
268 struct st_config_options options;
270 struct st_perf_monitor_group *perfmon;
274 /* Need this so that we can implement Mesa callbacks in this module.
276 static inline struct st_context *st_context(struct gl_context *ctx)
283 * Wrapper for struct gl_framebuffer.
284 * This is an opaque type to the outside world.
286 struct st_framebuffer
288 struct gl_framebuffer Base;
291 struct st_framebuffer_iface *iface;
292 enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
299 extern void st_init_driver_functions(struct pipe_screen *screen,
300 struct dd_function_table *functions);
302 void st_invalidate_state(struct gl_context * ctx, GLbitfield new_state);
310 st_fb_orientation(const struct gl_framebuffer *fb)
312 if (fb && _mesa_is_winsys_fbo(fb)) {
313 /* Drawing into a window (on-screen buffer).
315 * Negate Y scale to flip image vertically.
316 * The NDC Y coords prior to viewport transformation are in the range
317 * [y=-1=bottom, y=1=top]
318 * Hardware window coords are in the range [y=0=top, y=H-1=bottom] where
319 * H is the window height.
320 * Use the viewport transformation to invert Y.
325 /* Drawing into user-created FBO (very likely a texture).
327 * For textures, T=0=Bottom, so by extension Y=0=Bottom for rendering.
334 static inline unsigned
335 st_shader_stage_to_ptarget(gl_shader_stage stage)
338 case MESA_SHADER_VERTEX:
339 return PIPE_SHADER_VERTEX;
340 case MESA_SHADER_FRAGMENT:
341 return PIPE_SHADER_FRAGMENT;
342 case MESA_SHADER_GEOMETRY:
343 return PIPE_SHADER_GEOMETRY;
344 case MESA_SHADER_TESS_CTRL:
345 return PIPE_SHADER_TESS_CTRL;
346 case MESA_SHADER_TESS_EVAL:
347 return PIPE_SHADER_TESS_EVAL;
348 case MESA_SHADER_COMPUTE:
349 return PIPE_SHADER_COMPUTE;
352 assert(!"should not be reached");
353 return PIPE_SHADER_VERTEX;
357 /** clear-alloc a struct-sized object, with casting */
358 #define ST_CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T))
361 extern struct st_context *
362 st_create_context(gl_api api, struct pipe_context *pipe,
363 const struct gl_config *visual,
364 struct st_context *share,
365 const struct st_config_options *options);
368 st_destroy_context(struct st_context *st);