1 /*
2  * Copyright 2003 VMware, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial portions
15  * of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  */
25 
26 #include "main/version.h"
27 
28 #include "brw_context.h"
29 #include "brw_defines.h"
30 #include "brw_batch.h"
31 
32 /**
33  * Initializes potential list of extensions if ctx == NULL, or actually enables
34  * extensions for a context.
35  */
36 void
brw_init_extensions(struct gl_context * ctx)37 brw_init_extensions(struct gl_context *ctx)
38 {
39    struct brw_context *brw = brw_context(ctx);
40    const struct intel_device_info *devinfo = &brw->screen->devinfo;
41 
42    assert(devinfo->ver >= 4);
43 
44    ctx->Extensions.ARB_arrays_of_arrays = true;
45    ctx->Extensions.ARB_buffer_storage = true;
46    ctx->Extensions.ARB_clear_texture = true;
47    ctx->Extensions.ARB_clip_control = true;
48    ctx->Extensions.ARB_copy_image = true;
49    ctx->Extensions.ARB_depth_buffer_float = true;
50    ctx->Extensions.ARB_depth_clamp = true;
51    ctx->Extensions.ARB_depth_texture = true;
52    ctx->Extensions.ARB_draw_elements_base_vertex = true;
53    ctx->Extensions.ARB_draw_instanced = true;
54    ctx->Extensions.ARB_ES2_compatibility = true;
55    ctx->Extensions.ARB_explicit_attrib_location = true;
56    ctx->Extensions.ARB_explicit_uniform_location = true;
57    ctx->Extensions.ARB_fragment_coord_conventions = true;
58    ctx->Extensions.ARB_fragment_program = true;
59    ctx->Extensions.ARB_fragment_program_shadow = true;
60    ctx->Extensions.ARB_fragment_shader = true;
61    ctx->Extensions.ARB_framebuffer_object = true;
62    ctx->Extensions.ARB_half_float_vertex = true;
63    ctx->Extensions.ARB_instanced_arrays = true;
64    ctx->Extensions.ARB_internalformat_query = true;
65    ctx->Extensions.ARB_internalformat_query2 = true;
66    ctx->Extensions.ARB_map_buffer_range = true;
67    ctx->Extensions.ARB_occlusion_query = true;
68    ctx->Extensions.ARB_occlusion_query2 = true;
69    ctx->Extensions.ARB_point_sprite = true;
70    ctx->Extensions.ARB_polygon_offset_clamp = true;
71    ctx->Extensions.ARB_seamless_cube_map = true;
72    ctx->Extensions.ARB_shader_bit_encoding = true;
73    ctx->Extensions.ARB_shader_draw_parameters = true;
74    ctx->Extensions.ARB_shader_group_vote = true;
75    ctx->Extensions.ARB_shader_texture_lod = true;
76    ctx->Extensions.ARB_shading_language_packing = true;
77    ctx->Extensions.ARB_shadow = true;
78    ctx->Extensions.ARB_sync = true;
79    ctx->Extensions.ARB_texture_border_clamp = true;
80    ctx->Extensions.ARB_texture_compression_rgtc = true;
81    ctx->Extensions.ARB_texture_cube_map = true;
82    ctx->Extensions.ARB_texture_env_combine = true;
83    ctx->Extensions.ARB_texture_env_crossbar = true;
84    ctx->Extensions.ARB_texture_env_dot3 = true;
85    ctx->Extensions.ARB_texture_filter_anisotropic = true;
86    ctx->Extensions.ARB_texture_float = true;
87    ctx->Extensions.ARB_texture_mirror_clamp_to_edge = true;
88    ctx->Extensions.ARB_texture_non_power_of_two = true;
89    ctx->Extensions.ARB_texture_rg = true;
90    ctx->Extensions.ARB_vertex_program = true;
91    ctx->Extensions.ARB_vertex_shader = true;
92    ctx->Extensions.ARB_vertex_type_2_10_10_10_rev = true;
93    ctx->Extensions.ARB_vertex_type_10f_11f_11f_rev = true;
94    ctx->Extensions.EXT_blend_color = true;
95    ctx->Extensions.EXT_blend_equation_separate = true;
96    ctx->Extensions.EXT_blend_func_separate = true;
97    ctx->Extensions.EXT_blend_minmax = true;
98    ctx->Extensions.EXT_color_buffer_half_float = true;
99    ctx->Extensions.EXT_draw_buffers2 = true;
100    ctx->Extensions.EXT_EGL_image_storage = true;
101    ctx->Extensions.EXT_float_blend = true;
102    ctx->Extensions.EXT_framebuffer_sRGB = true;
103    ctx->Extensions.EXT_gpu_program_parameters = true;
104    ctx->Extensions.EXT_packed_float = true;
105    ctx->Extensions.EXT_pixel_buffer_object = true;
106    ctx->Extensions.EXT_point_parameters = true;
107    ctx->Extensions.EXT_provoking_vertex = true;
108    ctx->Extensions.EXT_render_snorm = true;
109    ctx->Extensions.EXT_sRGB = true;
110    ctx->Extensions.EXT_stencil_two_side = true;
111    ctx->Extensions.EXT_texture_array = true;
112    ctx->Extensions.EXT_texture_env_dot3 = true;
113    ctx->Extensions.EXT_texture_filter_anisotropic = true;
114    ctx->Extensions.EXT_texture_norm16 = true;
115    ctx->Extensions.EXT_texture_shared_exponent = true;
116    ctx->Extensions.EXT_texture_snorm = true;
117    ctx->Extensions.EXT_texture_sRGB = true;
118    ctx->Extensions.EXT_texture_sRGB_decode = true;
119    ctx->Extensions.EXT_texture_sRGB_R8 = true;
120    ctx->Extensions.EXT_texture_swizzle = true;
121    ctx->Extensions.EXT_texture_type_2_10_10_10_REV = true;
122    ctx->Extensions.EXT_vertex_array_bgra = true;
123    ctx->Extensions.KHR_robustness = true;
124    ctx->Extensions.AMD_seamless_cubemap_per_texture = true;
125    ctx->Extensions.APPLE_object_purgeable = true;
126    ctx->Extensions.ATI_texture_env_combine3 = true;
127    ctx->Extensions.MESA_framebuffer_flip_y = true;
128    ctx->Extensions.NV_conditional_render = true;
129    ctx->Extensions.NV_fog_distance = true;
130    ctx->Extensions.NV_primitive_restart = true;
131    ctx->Extensions.NV_texture_barrier = true;
132    ctx->Extensions.NV_texture_env_combine4 = true;
133    ctx->Extensions.NV_texture_rectangle = true;
134    ctx->Extensions.TDFX_texture_compression_FXT1 = true;
135    ctx->Extensions.OES_compressed_ETC1_RGB8_texture = true;
136    ctx->Extensions.OES_draw_texture = true;
137    ctx->Extensions.OES_EGL_image = true;
138    ctx->Extensions.OES_EGL_image_external = true;
139    ctx->Extensions.OES_standard_derivatives = true;
140    ctx->Extensions.OES_texture_float = true;
141    ctx->Extensions.OES_texture_float_linear = true;
142    ctx->Extensions.OES_texture_half_float = true;
143    ctx->Extensions.OES_texture_half_float_linear = true;
144 
145    if (devinfo->ver >= 8)
146       ctx->Const.GLSLVersion = 460;
147    else if (devinfo->is_haswell && can_do_pipelined_register_writes(brw->screen))
148       ctx->Const.GLSLVersion = 450;
149    else if (devinfo->ver >= 7 && can_do_pipelined_register_writes(brw->screen))
150       ctx->Const.GLSLVersion = 420;
151    else if (devinfo->ver >= 6)
152       ctx->Const.GLSLVersion = 330;
153    else
154       ctx->Const.GLSLVersion = 120;
155 
156    if (devinfo->ver >= 6)
157       ctx->Const.GLSLVersionCompat = 130;
158    else
159       ctx->Const.GLSLVersionCompat = 120;
160 
161    _mesa_override_glsl_version(&ctx->Const);
162 
163    ctx->Extensions.EXT_shader_integer_mix = ctx->Const.GLSLVersion >= 130;
164    ctx->Extensions.MESA_shader_integer_functions = ctx->Const.GLSLVersion >= 130;
165 
166    if (devinfo->is_g4x || devinfo->ver >= 5) {
167       ctx->Extensions.EXT_shader_framebuffer_fetch_non_coherent = true;
168       ctx->Extensions.KHR_blend_equation_advanced = true;
169    }
170 
171    if (devinfo->ver >= 5) {
172       ctx->Extensions.ARB_texture_query_levels = ctx->Const.GLSLVersion >= 130;
173       ctx->Extensions.ARB_texture_query_lod = true;
174       ctx->Extensions.EXT_timer_query = true;
175    }
176 
177    if (devinfo->ver == 6)
178       ctx->Extensions.ARB_transform_feedback2 = true;
179 
180    if (devinfo->ver >= 6) {
181       ctx->Extensions.ARB_blend_func_extended =
182          !driQueryOptionb(&brw->screen->optionCache, "disable_blend_func_extended");
183       ctx->Extensions.ARB_conditional_render_inverted = true;
184       ctx->Extensions.ARB_cull_distance = true;
185       ctx->Extensions.ARB_draw_buffers_blend = true;
186       if (ctx->API != API_OPENGL_COMPAT ||
187           ctx->Const.AllowHigherCompatVersion)
188          ctx->Extensions.ARB_enhanced_layouts = true;
189       ctx->Extensions.ARB_ES3_compatibility = true;
190       ctx->Extensions.ARB_fragment_layer_viewport = true;
191       ctx->Extensions.ARB_pipeline_statistics_query = true;
192       ctx->Extensions.ARB_sample_shading = true;
193       ctx->Extensions.ARB_shading_language_420pack = true;
194       if (ctx->API != API_OPENGL_COMPAT ||
195           ctx->Const.AllowHigherCompatVersion) {
196          ctx->Extensions.ARB_texture_buffer_object = true;
197          ctx->Extensions.ARB_texture_buffer_object_rgb32 = true;
198          ctx->Extensions.ARB_texture_buffer_range = true;
199       }
200       ctx->Extensions.ARB_texture_cube_map_array = true;
201       ctx->Extensions.ARB_texture_gather = true;
202       ctx->Extensions.ARB_texture_multisample = true;
203       ctx->Extensions.ARB_texture_rgb10_a2ui = true;
204       ctx->Extensions.ARB_uniform_buffer_object = true;
205       ctx->Extensions.EXT_gpu_shader4 = true;
206       ctx->Extensions.EXT_texture_integer = true;
207       ctx->Extensions.EXT_texture_shadow_lod = true;
208 
209       if (ctx->API != API_OPENGL_COMPAT ||
210           ctx->Const.AllowHigherCompatVersion)
211          ctx->Extensions.AMD_vertex_shader_layer = true;
212       ctx->Extensions.EXT_framebuffer_multisample = true;
213       ctx->Extensions.EXT_framebuffer_multisample_blit_scaled = true;
214       ctx->Extensions.EXT_transform_feedback = true;
215       ctx->Extensions.ARB_transform_feedback_overflow_query = true;
216       ctx->Extensions.OES_depth_texture_cube_map = true;
217       ctx->Extensions.OES_sample_variables = true;
218 
219       ctx->Extensions.ARB_timer_query = brw->screen->hw_has_timestamp;
220       ctx->Extensions.EXT_disjoint_timer_query =
221          ctx->Extensions.ARB_timer_query;
222 
223       /* Only enable this in core profile because geometry shaders are
224        * required, and Mesa only supports geometry shaders in OpenGL 3.2 and
225        * later.  In this driver, that currently means Core profile.
226        */
227       if (ctx->API == API_OPENGL_CORE ||
228           ctx->Const.AllowHigherCompatVersion) {
229          ctx->Extensions.ARB_shader_viewport_layer_array = true;
230          ctx->Extensions.ARB_viewport_array = true;
231          ctx->Extensions.AMD_vertex_shader_viewport_index = true;
232       }
233    }
234 
235    brw->predicate.supported = false;
236 
237    if (devinfo->ver >= 7) {
238       ctx->Extensions.ARB_conservative_depth = true;
239       ctx->Extensions.ARB_derivative_control = true;
240       ctx->Extensions.ARB_framebuffer_no_attachments = true;
241       if (ctx->API != API_OPENGL_COMPAT ||
242           ctx->Const.AllowHigherCompatVersion) {
243          ctx->Extensions.ARB_gpu_shader5 = true;
244          ctx->Extensions.ARB_gpu_shader_fp64 = true;
245       }
246       ctx->Extensions.ARB_shader_atomic_counters = true;
247       ctx->Extensions.ARB_shader_atomic_counter_ops = true;
248       ctx->Extensions.ARB_shader_clock = true;
249       ctx->Extensions.ARB_shader_image_load_store = true;
250       ctx->Extensions.ARB_shader_image_size = true;
251       ctx->Extensions.ARB_shader_precision = true;
252       ctx->Extensions.ARB_shader_texture_image_samples = true;
253       if (ctx->API != API_OPENGL_COMPAT ||
254           ctx->Const.AllowHigherCompatVersion)
255          ctx->Extensions.ARB_tessellation_shader = true;
256       ctx->Extensions.ARB_texture_compression_bptc = true;
257       ctx->Extensions.ARB_texture_view = true;
258       ctx->Extensions.ARB_shader_storage_buffer_object = true;
259       ctx->Extensions.ARB_vertex_attrib_64bit = true;
260       ctx->Extensions.EXT_shader_samples_identical = true;
261       ctx->Extensions.OES_primitive_bounding_box = true;
262       ctx->Extensions.OES_texture_buffer = true;
263 
264       if (can_do_pipelined_register_writes(brw->screen)) {
265          ctx->Extensions.ARB_draw_indirect = true;
266          ctx->Extensions.ARB_transform_feedback2 = true;
267          ctx->Extensions.ARB_transform_feedback3 = true;
268          ctx->Extensions.ARB_transform_feedback_instanced = true;
269 
270          if (can_do_compute_dispatch(brw->screen) &&
271              ctx->Const.MaxComputeWorkGroupSize[0] >= 1024) {
272             ctx->Extensions.ARB_compute_shader = true;
273             ctx->Extensions.ARB_ES3_1_compatibility =
274                devinfo->verx10 >= 75;
275             ctx->Extensions.NV_compute_shader_derivatives = true;
276             ctx->Extensions.ARB_compute_variable_group_size = true;
277          }
278 
279          if (can_do_predicate_writes(brw->screen)) {
280             brw->predicate.supported = true;
281             ctx->Extensions.ARB_indirect_parameters = true;
282          }
283       }
284 
285       ctx->Extensions.ARB_gl_spirv = true;
286       ctx->Extensions.ARB_spirv_extensions = true;
287    }
288 
289    if (devinfo->verx10 >= 75) {
290       ctx->Extensions.ARB_stencil_texturing = true;
291       ctx->Extensions.ARB_texture_stencil8 = true;
292       ctx->Extensions.OES_geometry_shader = true;
293       ctx->Extensions.OES_texture_cube_map_array = true;
294       ctx->Extensions.OES_viewport_array = true;
295    }
296 
297    if (devinfo->verx10 >= 75 || devinfo->is_baytrail) {
298       ctx->Extensions.ARB_robust_buffer_access_behavior = true;
299    }
300 
301    if (can_do_mi_math_and_lrr(brw->screen)) {
302       ctx->Extensions.ARB_query_buffer_object = true;
303    }
304 
305    if (devinfo->ver >= 8 || devinfo->is_baytrail) {
306       /* For now, we can't enable OES_texture_view on Gen 7 because of
307        * some piglit failures coming from
308        * piglit/tests/spec/arb_texture_view/rendering-formats.c that need
309        * investigation.
310        */
311       ctx->Extensions.OES_texture_view = true;
312    }
313 
314    if (devinfo->ver >= 7) {
315       /* We can safely enable OES_copy_image on Gen 7, since we emulate
316        * the ETC2 support using the shadow_miptree to store the
317        * compressed data.
318        */
319       ctx->Extensions.OES_copy_image = true;
320    }
321 
322    /* Gen < 6 still uses the blitter. It's somewhat annoying to add support
323     * for blackhole there... Does anybody actually care anymore anyway?
324     */
325    if (devinfo->ver >= 6)
326       ctx->Extensions.INTEL_blackhole_render = true;
327 
328    if (devinfo->ver >= 8) {
329       ctx->Extensions.ARB_gpu_shader_int64 = true;
330       /* requires ARB_gpu_shader_int64 */
331       ctx->Extensions.ARB_shader_ballot = true;
332       ctx->Extensions.ARB_ES3_2_compatibility = true;
333 
334       /* Currently only implemented in the scalar backend, so only enable for
335        * Gfx8+.  Eventually Gfx6+ could be supported.
336        */
337       ctx->Extensions.INTEL_shader_integer_functions2 = true;
338    }
339 
340    if (devinfo->ver >= 9) {
341       ctx->Extensions.ANDROID_extension_pack_es31a = true;
342       ctx->Extensions.AMD_depth_clamp_separate = true;
343       ctx->Extensions.ARB_post_depth_coverage = true;
344       ctx->Extensions.ARB_shader_stencil_export = true;
345       ctx->Extensions.EXT_shader_framebuffer_fetch = true;
346       ctx->Extensions.INTEL_conservative_rasterization = true;
347       ctx->Extensions.INTEL_shader_atomic_float_minmax = true;
348       ctx->Extensions.KHR_blend_equation_advanced_coherent = true;
349       ctx->Extensions.KHR_texture_compression_astc_ldr = true;
350       ctx->Extensions.KHR_texture_compression_astc_sliced_3d = true;
351 
352       /*
353        * From the Skylake PRM Vol. 7 (Memory Fence Message, page 221):
354        *  "A memory fence message issued by a thread causes further messages
355        *   issued by the thread to be blocked until all previous data port
356        *   messages have completed, or the results can be globally observed from
357        *   the point of view of other threads in the system."
358        *
359        * From the Haswell PRM Vol. 7 (Memory Fence, page 256):
360        *  "A memory fence message issued by a thread causes further messages
361        *   issued by the thread to be blocked until all previous messages issued
362        *   by the thread to that data port (data cache or render cache) have
363        *   been globally observed from the point of view of other threads in the
364        *   system."
365        *
366        * Summarized: For ARB_fragment_shader_interlock to work, we need to
367        * ensure memory access ordering for all messages to the dataport from
368        * all threads. Memory fence messages prior to SKL only provide memory
369        * access ordering for messages from the same thread, so we can only
370        * support the feature from Gfx9 onwards.
371        *
372        */
373 
374       ctx->Extensions.ARB_fragment_shader_interlock = true;
375    }
376 
377    if (intel_device_info_is_9lp(devinfo))
378       ctx->Extensions.KHR_texture_compression_astc_hdr = true;
379 
380    if (devinfo->ver >= 6)
381       ctx->Extensions.INTEL_performance_query = true;
382 
383    if (ctx->API != API_OPENGL_COMPAT ||
384        ctx->Const.AllowHigherCompatVersion)
385       ctx->Extensions.ARB_base_instance = true;
386    if (ctx->API != API_OPENGL_CORE)
387       ctx->Extensions.ARB_color_buffer_float = true;
388 
389    ctx->Extensions.EXT_texture_compression_s3tc = true;
390    ctx->Extensions.EXT_texture_compression_s3tc_srgb = true;
391    ctx->Extensions.ANGLE_texture_compression_dxt = true;
392 
393    ctx->Extensions.EXT_demote_to_helper_invocation = true;
394 
395    ctx->Const.PrimitiveRestartFixedIndex = true;
396 
397    if (devinfo->ver >= 7) {
398       ctx->Extensions.EXT_memory_object_fd = true;
399       ctx->Extensions.EXT_memory_object = true;
400       ctx->Extensions.EXT_semaphore = true;
401       ctx->Extensions.EXT_semaphore_fd = true;
402    }
403 }
404