2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
30 #include "extensions.h"
33 #include "mfeatures.h"
36 #include "texcompress.h"
37 #include "framebuffer.h"
38 #include "samplerobj.h"
40 /* This is a table driven implemetation of the glGet*v() functions.
41 * The basic idea is that most getters just look up an int somewhere
42 * in struct gl_context and then convert it to a bool or float according to
43 * which of glGetIntegerv() glGetBooleanv() etc is being called.
44 * Instead of generating code to do this, we can just record the enum
45 * value and the offset into struct gl_context in an array of structs. Then
46 * in glGet*(), we lookup the struct for the enum in question, and use
47 * the offset to get the int we need.
49 * Sometimes we need to look up a float, a boolean, a bit in a
50 * bitfield, a matrix or other types instead, so we need to track the
51 * type of the value in struct gl_context. And sometimes the value isn't in
52 * struct gl_context but in the drawbuffer, the array object, current texture
53 * unit, or maybe it's a computed value. So we need to also track
54 * where or how to find the value. Finally, we sometimes need to
55 * check that one of a number of extensions are enabled, the GL
56 * version or flush or call _mesa_update_state(). This is done by
57 * attaching optional extra information to the value description
58 * struct, it's sort of like an array of opcodes that describe extra
61 * Putting all this together we end up with struct value_desc below,
62 * and with a couple of macros to help, the table of struct value_desc
63 * is about as concise as the specification in the old python script.
66 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
67 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
68 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
69 (GLint) ((F) * 65536.0f) )
71 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
72 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
73 ((I) < SHRT_MIN) ? INT_MIN : \
74 (GLint) ((I) * 65536) )
76 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
77 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
79 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
80 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
81 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
82 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
84 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
85 #define ENUM_TO_FIXED(E) (E)
120 enum value_location {
138 EXTRA_NEW_FRAG_CLAMP,
139 EXTRA_VALID_DRAW_BUFFER,
140 EXTRA_VALID_TEXTURE_UNIT,
141 EXTRA_VALID_CLIP_DISTANCE,
146 #define NO_EXTRA NULL
151 GLubyte location; /**< enum value_location */
152 GLubyte type; /**< enum value_type */
159 GLfloat value_float_4[4];
160 GLmatrix *value_matrix;
162 GLint value_int_4[4];
166 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
170 GLboolean value_bool;
173 #define BUFFER_FIELD(field, type) \
174 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
175 #define CONTEXT_FIELD(field, type) \
176 LOC_CONTEXT, type, offsetof(struct gl_context, field)
177 #define ARRAY_FIELD(field, type) \
178 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
179 #undef CONST /* already defined through windows.h */
180 #define CONST(value) \
181 LOC_CONTEXT, TYPE_CONST, value
183 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
184 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
185 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
187 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
188 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
189 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
190 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
191 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
192 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
193 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
194 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
195 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
196 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
197 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
198 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
199 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
200 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
201 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
202 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
203 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
204 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
205 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
206 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
208 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
209 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
210 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
213 offsetof(struct gl_extensions, f)
215 #define EXTRA_EXT(e) \
216 static const int extra_##e[] = { \
220 #define EXTRA_EXT2(e1, e2) \
221 static const int extra_##e1##_##e2[] = { \
222 EXT(e1), EXT(e2), EXTRA_END \
225 /* The 'extra' mechanism is a way to specify extra checks (such as
226 * extensions or specific gl versions) or actions (flush current, new
227 * buffers) that we need to do before looking up an enum. We need to
228 * declare them all up front so we can refer to them in the value_desc
231 static const int extra_new_buffers[] = {
236 static const int extra_new_frag_clamp[] = {
237 EXTRA_NEW_FRAG_CLAMP,
241 static const int extra_valid_draw_buffer[] = {
242 EXTRA_VALID_DRAW_BUFFER,
246 static const int extra_valid_texture_unit[] = {
247 EXTRA_VALID_TEXTURE_UNIT,
251 static const int extra_valid_clip_distance[] = {
252 EXTRA_VALID_CLIP_DISTANCE,
256 static const int extra_flush_current_valid_texture_unit[] = {
258 EXTRA_VALID_TEXTURE_UNIT,
262 static const int extra_flush_current[] = {
267 static const int extra_EXT_secondary_color_flush_current[] = {
268 EXT(EXT_secondary_color),
273 static const int extra_EXT_fog_coord_flush_current[] = {
279 static const int extra_EXT_texture_integer[] = {
280 EXT(EXT_texture_integer),
284 static const int extra_GLSL_130[] = {
289 static const int extra_texture_buffer_object[] = {
292 EXT(ARB_texture_buffer_object),
296 static const int extra_ARB_transform_feedback2_api_es3[] = {
297 EXT(ARB_transform_feedback2),
302 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
303 EXT(ARB_uniform_buffer_object),
304 EXT(ARB_geometry_shader4),
308 static const int extra_ARB_ES2_compatibility_api_es2[] = {
309 EXT(ARB_ES2_compatibility),
314 static const int extra_ARB_ES3_compatibility_api_es3[] = {
315 EXT(ARB_ES3_compatibility),
320 EXTRA_EXT(ARB_texture_cube_map);
321 EXTRA_EXT(MESA_texture_array);
322 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
323 EXTRA_EXT(EXT_secondary_color);
324 EXTRA_EXT(EXT_fog_coord);
325 EXTRA_EXT(NV_fog_distance);
326 EXTRA_EXT(EXT_texture_filter_anisotropic);
327 EXTRA_EXT(NV_point_sprite);
328 EXTRA_EXT(NV_texture_rectangle);
329 EXTRA_EXT(EXT_stencil_two_side);
330 EXTRA_EXT(EXT_depth_bounds_test);
331 EXTRA_EXT(ARB_depth_clamp);
332 EXTRA_EXT(ATI_fragment_shader);
333 EXTRA_EXT(EXT_framebuffer_blit);
334 EXTRA_EXT(ARB_shader_objects);
335 EXTRA_EXT(EXT_provoking_vertex);
336 EXTRA_EXT(ARB_fragment_shader);
337 EXTRA_EXT(ARB_fragment_program);
338 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
339 EXTRA_EXT(EXT_framebuffer_object);
340 EXTRA_EXT(ARB_seamless_cube_map);
342 EXTRA_EXT(ARB_vertex_shader);
343 EXTRA_EXT(EXT_transform_feedback);
344 EXTRA_EXT(ARB_transform_feedback3);
345 EXTRA_EXT(EXT_pixel_buffer_object);
346 EXTRA_EXT(ARB_vertex_program);
347 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
348 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
349 EXTRA_EXT(ARB_geometry_shader4);
350 EXTRA_EXT(ARB_color_buffer_float);
351 EXTRA_EXT(EXT_framebuffer_sRGB);
352 EXTRA_EXT(OES_EGL_image_external);
353 EXTRA_EXT(ARB_blend_func_extended);
354 EXTRA_EXT(ARB_uniform_buffer_object);
355 EXTRA_EXT(ARB_timer_query);
356 EXTRA_EXT(ARB_map_buffer_alignment);
357 EXTRA_EXT(ARB_texture_cube_map_array);
358 EXTRA_EXT(ARB_texture_buffer_range);
359 EXTRA_EXT(ARB_texture_multisample);
362 extra_ARB_color_buffer_float_or_glcore[] = {
363 EXT(ARB_color_buffer_float),
369 extra_NV_primitive_restart[] = {
370 EXT(NV_primitive_restart),
374 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
375 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
376 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
378 static const int extra_gl30_es3[] = {
385 extra_ARB_vertex_program_api_es2[] = {
386 EXT(ARB_vertex_program),
391 /* The ReadBuffer get token is valid under either full GL or under
392 * GLES2 if the NV_read_buffer extension is available. */
394 extra_NV_read_buffer_api_gl[] = {
400 /* This is the big table describing all the enums we accept in
401 * glGet*v(). The table is partitioned into six parts: enums
402 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
403 * between OpenGL and GLES, enums exclusive to GLES, etc for the
404 * remaining combinations. To look up the enums valid in a given API
405 * we will use a hash table specific to that API. These tables are in
406 * turn generated at build time and included through get_hash.h.
407 * The different sections are guarded by #if FEATURE_GL etc to make
408 * sure we only compile in the enums we may need. */
410 #include "get_hash.h"
412 /* All we need now is a way to look up the value struct from the enum.
413 * The code generated by gcc for the old generated big switch
414 * statement is a big, balanced, open coded if/else tree, essentially
415 * an unrolled binary search. It would be natural to sort the new
416 * enum table and use bsearch(), but we will use a read-only hash
417 * table instead. bsearch() has a nice guaranteed worst case
418 * performance, but we're also guaranteed to hit that worst case
419 * (log2(n) iterations) for about half the enums. Instead, using an
420 * open addressing hash table, we can find the enum on the first try
421 * for 80% of the enums, 1 collision for 10% and never more than 5
422 * collisions for any enum (typical numbers). And the code is very
423 * simple, even though it feels a little magic. */
427 print_table_stats(int api)
429 int i, j, collisions[11], count, hash, mask;
430 const struct value_desc *d;
431 const char *api_names[] = {
432 [API_OPENGL_COMPAT] = "GL",
433 [API_OPENGL_CORE] = "GL_CORE",
434 [API_OPENGLES] = "GLES",
435 [API_OPENGLES2] = "GLES2",
437 const char *api_name;
439 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
441 mask = Elements(table(api)) - 1;
442 memset(collisions, 0, sizeof collisions);
444 for (i = 0; i < Elements(table(api)); i++) {
448 d = &values[table(api)[i]];
449 hash = (d->pname * prime_factor);
452 if (values[table(api)[hash & mask]].pname == d->pname)
464 printf("number of enums for %s: %d (total %ld)\n",
465 api_name, count, Elements(values));
466 for (i = 0; i < Elements(collisions) - 1; i++)
467 if (collisions[i] > 0)
468 printf(" %d enums with %d %scollisions\n",
469 collisions[i], i, i == 10 ? "or more " : "");
474 * Initialize the enum hash for a given API
476 * This is called from one_time_init() to insert the enum values that
477 * are valid for the API in question into the enum hash table.
479 * \param the current context, for determining the API in question
481 void _mesa_init_get_hash(struct gl_context *ctx)
489 * Handle irregular enums
491 * Some values don't conform to the "well-known type at context
492 * pointer + offset" pattern, so we have this function to catch all
493 * the corner cases. Typically, it's a computed value or a one-off
494 * pointer to a custom struct or something.
496 * In this case we can't return a pointer to the value, so we'll have
497 * to use the temporary variable 'v' declared back in the calling
498 * glGet*v() function to store the result.
500 * \param ctx the current context
501 * \param d the struct value_desc that describes the enum
502 * \param v pointer to the tmp declared in the calling glGet*v() function
505 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
507 struct gl_buffer_object **buffer_obj;
508 struct gl_client_array *array;
512 case GL_MAJOR_VERSION:
513 v->value_int = ctx->Version / 10;
515 case GL_MINOR_VERSION:
516 v->value_int = ctx->Version % 10;
522 case GL_TEXTURE_1D_ARRAY_EXT:
523 case GL_TEXTURE_2D_ARRAY_EXT:
524 case GL_TEXTURE_CUBE_MAP_ARB:
525 case GL_TEXTURE_RECTANGLE_NV:
526 case GL_TEXTURE_EXTERNAL_OES:
527 v->value_bool = _mesa_IsEnabled(d->pname);
530 case GL_LINE_STIPPLE_PATTERN:
531 /* This is the only GLushort, special case it here by promoting
532 * to an int rather than introducing a new type. */
533 v->value_int = ctx->Line.StipplePattern;
536 case GL_CURRENT_RASTER_TEXTURE_COORDS:
537 unit = ctx->Texture.CurrentUnit;
538 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
539 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
540 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
541 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
544 case GL_CURRENT_TEXTURE_COORDS:
545 unit = ctx->Texture.CurrentUnit;
546 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
547 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
548 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
549 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
552 case GL_COLOR_WRITEMASK:
553 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
554 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
555 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
556 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
560 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
564 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
567 case GL_MAP2_GRID_DOMAIN:
568 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
569 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
570 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
571 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
574 case GL_TEXTURE_STACK_DEPTH:
575 unit = ctx->Texture.CurrentUnit;
576 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
578 case GL_TEXTURE_MATRIX:
579 unit = ctx->Texture.CurrentUnit;
580 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
583 case GL_TEXTURE_COORD_ARRAY:
584 case GL_TEXTURE_COORD_ARRAY_SIZE:
585 case GL_TEXTURE_COORD_ARRAY_TYPE:
586 case GL_TEXTURE_COORD_ARRAY_STRIDE:
587 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
588 v->value_int = *(GLuint *) ((char *) array + d->offset);
591 case GL_ACTIVE_TEXTURE_ARB:
592 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
594 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
595 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
598 case GL_MODELVIEW_STACK_DEPTH:
599 case GL_PROJECTION_STACK_DEPTH:
600 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
603 case GL_MAX_TEXTURE_SIZE:
604 case GL_MAX_3D_TEXTURE_SIZE:
605 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
606 p = (GLuint *) ((char *) ctx + d->offset);
607 v->value_int = 1 << (*p - 1);
611 v->value_int_4[0] = ctx->Scissor.X;
612 v->value_int_4[1] = ctx->Scissor.Y;
613 v->value_int_4[2] = ctx->Scissor.Width;
614 v->value_int_4[3] = ctx->Scissor.Height;
619 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
622 if (!ctx->CompileFlag)
624 else if (ctx->ExecuteFlag)
625 v->value_enum = GL_COMPILE_AND_EXECUTE;
627 v->value_enum = GL_COMPILE;
631 v->value_int_4[0] = ctx->Viewport.X;
632 v->value_int_4[1] = ctx->Viewport.Y;
633 v->value_int_4[2] = ctx->Viewport.Width;
634 v->value_int_4[3] = ctx->Viewport.Height;
637 case GL_ACTIVE_STENCIL_FACE_EXT:
638 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
641 case GL_STENCIL_FAIL:
642 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
644 case GL_STENCIL_FUNC:
645 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
647 case GL_STENCIL_PASS_DEPTH_FAIL:
648 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
650 case GL_STENCIL_PASS_DEPTH_PASS:
651 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
654 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
656 case GL_STENCIL_VALUE_MASK:
657 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
659 case GL_STENCIL_WRITEMASK:
660 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
663 case GL_NUM_EXTENSIONS:
664 v->value_int = _mesa_get_extension_count(ctx);
667 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
668 v->value_int = _mesa_get_color_read_type(ctx);
670 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
671 v->value_int = _mesa_get_color_read_format(ctx);
674 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
675 v->value_int = ctx->CurrentStack->Depth + 1;
677 case GL_CURRENT_MATRIX_ARB:
678 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
679 v->value_matrix = ctx->CurrentStack->Top;
682 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
683 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
685 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
687 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
688 ASSERT(v->value_int_n.n <= 100);
691 case GL_MAX_VARYING_FLOATS_ARB:
692 v->value_int = ctx->Const.MaxVarying * 4;
695 /* Various object names */
697 case GL_TEXTURE_BINDING_1D:
698 case GL_TEXTURE_BINDING_2D:
699 case GL_TEXTURE_BINDING_3D:
700 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
701 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
702 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
703 case GL_TEXTURE_BINDING_RECTANGLE_NV:
704 case GL_TEXTURE_BINDING_EXTERNAL_OES:
705 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
706 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
707 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
708 unit = ctx->Texture.CurrentUnit;
710 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
713 /* GL_ARB_vertex_buffer_object */
714 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
715 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
716 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
717 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
718 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
719 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
720 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
721 buffer_obj = (struct gl_buffer_object **)
722 ((char *) ctx->Array.ArrayObj + d->offset);
723 v->value_int = (*buffer_obj)->Name;
725 case GL_ARRAY_BUFFER_BINDING_ARB:
726 v->value_int = ctx->Array.ArrayBufferObj->Name;
728 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
730 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
732 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
733 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
736 /* ARB_copy_buffer */
737 case GL_COPY_READ_BUFFER:
738 v->value_int = ctx->CopyReadBuffer->Name;
740 case GL_COPY_WRITE_BUFFER:
741 v->value_int = ctx->CopyWriteBuffer->Name;
744 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
745 v->value_int = ctx->Pack.BufferObj->Name;
747 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
748 v->value_int = ctx->Unpack.BufferObj->Name;
750 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
751 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
753 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
754 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
756 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
757 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
759 case GL_TRANSFORM_FEEDBACK_BINDING:
760 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
762 case GL_CURRENT_PROGRAM:
764 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
766 case GL_READ_FRAMEBUFFER_BINDING_EXT:
767 v->value_int = ctx->ReadBuffer->Name;
769 case GL_RENDERBUFFER_BINDING_EXT:
771 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
773 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
774 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
778 if (_mesa_get_clamp_fragment_color(ctx))
779 COPY_4FV(v->value_float_4, ctx->Fog.Color);
781 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
783 case GL_COLOR_CLEAR_VALUE:
784 if (_mesa_get_clamp_fragment_color(ctx)) {
785 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
786 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
787 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
788 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
790 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
792 case GL_BLEND_COLOR_EXT:
793 if (_mesa_get_clamp_fragment_color(ctx))
794 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
796 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
798 case GL_ALPHA_TEST_REF:
799 if (_mesa_get_clamp_fragment_color(ctx))
800 v->value_float = ctx->Color.AlphaRef;
802 v->value_float = ctx->Color.AlphaRefUnclamped;
804 case GL_MAX_VERTEX_UNIFORM_VECTORS:
805 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
808 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
809 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
812 /* GL_ARB_texture_buffer_object */
813 case GL_TEXTURE_BUFFER_ARB:
814 v->value_int = ctx->Texture.BufferObject->Name;
816 case GL_TEXTURE_BINDING_BUFFER_ARB:
817 unit = ctx->Texture.CurrentUnit;
819 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
821 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
823 struct gl_buffer_object *buf =
824 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
825 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
826 v->value_int = buf ? buf->Name : 0;
829 case GL_TEXTURE_BUFFER_FORMAT_ARB:
830 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
831 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
834 /* GL_ARB_sampler_objects */
835 case GL_SAMPLER_BINDING:
837 struct gl_sampler_object *samp =
838 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
841 * The sampler object may have been deleted on another context,
842 * so we try to lookup the sampler object before returning its Name.
844 if (samp && _mesa_lookup_samplerobj(ctx, samp->Name)) {
845 v->value_int = samp->Name;
851 /* GL_ARB_uniform_buffer_object */
852 case GL_UNIFORM_BUFFER_BINDING:
853 v->value_int = ctx->UniformBuffer->Name;
855 /* GL_ARB_timer_query */
857 if (ctx->Driver.GetTimestamp) {
858 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
861 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
868 * Check extra constraints on a struct value_desc descriptor
870 * If a struct value_desc has a non-NULL extra pointer, it means that
871 * there are a number of extra constraints to check or actions to
872 * perform. The extras is just an integer array where each integer
873 * encode different constraints or actions.
875 * \param ctx current context
876 * \param func name of calling glGet*v() function for error reporting
877 * \param d the struct value_desc that has the extra constraints
879 * \return GL_FALSE if all of the constraints were not satisfied,
883 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
885 const GLuint version = ctx->Version;
891 for (e = d->extra; *e != EXTRA_END; e++)
893 case EXTRA_VERSION_30:
899 case EXTRA_VERSION_31:
905 case EXTRA_VERSION_32:
911 case EXTRA_NEW_FRAG_CLAMP:
912 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
913 _mesa_update_state(ctx);
916 if (ctx->API == API_OPENGLES2) {
922 if (_mesa_is_gles3(ctx)) {
928 if (_mesa_is_desktop_gl(ctx)) {
933 case EXTRA_API_GL_CORE:
934 if (ctx->API == API_OPENGL_CORE) {
939 case EXTRA_NEW_BUFFERS:
940 if (ctx->NewState & _NEW_BUFFERS)
941 _mesa_update_state(ctx);
943 case EXTRA_FLUSH_CURRENT:
944 FLUSH_CURRENT(ctx, 0);
946 case EXTRA_VALID_DRAW_BUFFER:
947 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
948 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
949 func, d->pname - GL_DRAW_BUFFER0_ARB);
953 case EXTRA_VALID_TEXTURE_UNIT:
954 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
955 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
956 func, ctx->Texture.CurrentUnit);
960 case EXTRA_VALID_CLIP_DISTANCE:
961 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
962 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
963 func, d->pname - GL_CLIP_DISTANCE0);
968 if (ctx->Const.GLSLVersion >= 130) {
975 default: /* *e is a offset into the extension struct */
977 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
982 if (total > 0 && enabled == 0) {
983 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
984 _mesa_lookup_enum_by_nr(d->pname));
991 static const struct value_desc error_value =
992 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
995 * Find the struct value_desc corresponding to the enum 'pname'.
997 * We hash the enum value to get an index into the 'table' array,
998 * which holds the index in the 'values' array of struct value_desc.
999 * Once we've found the entry, we do the extra checks, if any, then
1000 * look up the value and return a pointer to it.
1002 * If the value has to be computed (for example, it's the result of a
1003 * function call or we need to add 1 to it), we use the tmp 'v' to
1006 * \param func name of glGet*v() func for error reporting
1007 * \param pname the enum value we're looking up
1008 * \param p is were we return the pointer to the value
1009 * \param v a tmp union value variable in the calling glGet*v() function
1011 * \return the struct value_desc corresponding to the enum or a struct
1012 * value_desc of TYPE_INVALID if not found. This lets the calling
1013 * glGet*v() function jump right into a switch statement and
1014 * handle errors there instead of having to check for NULL.
1016 static const struct value_desc *
1017 find_value(const char *func, GLenum pname, void **p, union value *v)
1019 GET_CURRENT_CONTEXT(ctx);
1020 struct gl_texture_unit *unit;
1022 const struct value_desc *d;
1026 /* We index into the table_set[] list of per-API hash tables using the API's
1027 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1028 * value since it's compatible with GLES2 its entry in table_set[] is at the
1031 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
1032 if (_mesa_is_gles3(ctx)) {
1033 api = API_OPENGL_LAST + 1;
1035 mask = Elements(table(api)) - 1;
1036 hash = (pname * prime_factor);
1038 int idx = table(api)[hash & mask];
1040 /* If the enum isn't valid, the hash walk ends with index 0,
1041 * pointing to the first entry of values[] which doesn't hold
1042 * any valid enum. */
1043 if (unlikely(idx == 0)) {
1044 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1045 _mesa_lookup_enum_by_nr(pname));
1046 return &error_value;
1050 if (likely(d->pname == pname))
1056 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1057 return &error_value;
1059 switch (d->location) {
1061 *p = ((char *) ctx->DrawBuffer + d->offset);
1064 *p = ((char *) ctx + d->offset);
1067 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1070 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1071 *p = ((char *) unit + d->offset);
1074 find_custom_value(ctx, d, v);
1082 /* silence warning */
1083 return &error_value;
1086 static const int transpose[] = {
1094 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1096 const struct value_desc *d;
1102 d = find_value("glGetBooleanv", pname, &p, &v);
1107 params[0] = INT_TO_BOOLEAN(d->offset);
1112 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1115 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1118 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1121 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1125 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1129 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1131 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1134 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1137 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1141 for (i = 0; i < v.value_int_n.n; i++)
1142 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1146 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1150 params[0] = ((GLboolean*) p)[0];
1154 m = *(GLmatrix **) p;
1155 for (i = 0; i < 16; i++)
1156 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1160 m = *(GLmatrix **) p;
1161 for (i = 0; i < 16; i++)
1162 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1173 shift = d->type - TYPE_BIT_0;
1174 params[0] = (*(GLbitfield *) p >> shift) & 1;
1180 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1182 const struct value_desc *d;
1188 d = find_value("glGetFloatv", pname, &p, &v);
1193 params[0] = (GLfloat) d->offset;
1198 params[3] = ((GLfloat *) p)[3];
1201 params[2] = ((GLfloat *) p)[2];
1204 params[1] = ((GLfloat *) p)[1];
1207 params[0] = ((GLfloat *) p)[0];
1211 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1215 params[3] = (GLfloat) (((GLint *) p)[3]);
1217 params[2] = (GLfloat) (((GLint *) p)[2]);
1220 params[1] = (GLfloat) (((GLint *) p)[1]);
1223 params[0] = (GLfloat) (((GLint *) p)[0]);
1227 for (i = 0; i < v.value_int_n.n; i++)
1228 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1232 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1236 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1240 m = *(GLmatrix **) p;
1241 for (i = 0; i < 16; i++)
1242 params[i] = m->m[i];
1246 m = *(GLmatrix **) p;
1247 for (i = 0; i < 16; i++)
1248 params[i] = m->m[transpose[i]];
1259 shift = d->type - TYPE_BIT_0;
1260 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1266 _mesa_GetIntegerv(GLenum pname, GLint *params)
1268 const struct value_desc *d;
1274 d = find_value("glGetIntegerv", pname, &p, &v);
1279 params[0] = d->offset;
1283 params[3] = IROUND(((GLfloat *) p)[3]);
1285 params[2] = IROUND(((GLfloat *) p)[2]);
1287 params[1] = IROUND(((GLfloat *) p)[1]);
1289 params[0] = IROUND(((GLfloat *) p)[0]);
1293 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1295 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1297 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1299 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1303 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1307 params[3] = ((GLint *) p)[3];
1309 params[2] = ((GLint *) p)[2];
1312 params[1] = ((GLint *) p)[1];
1315 params[0] = ((GLint *) p)[0];
1319 for (i = 0; i < v.value_int_n.n; i++)
1320 params[i] = v.value_int_n.ints[i];
1324 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1328 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1332 m = *(GLmatrix **) p;
1333 for (i = 0; i < 16; i++)
1334 params[i] = FLOAT_TO_INT(m->m[i]);
1338 m = *(GLmatrix **) p;
1339 for (i = 0; i < 16; i++)
1340 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1351 shift = d->type - TYPE_BIT_0;
1352 params[0] = (*(GLbitfield *) p >> shift) & 1;
1358 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1360 const struct value_desc *d;
1366 d = find_value("glGetInteger64v", pname, &p, &v);
1371 params[0] = d->offset;
1375 params[3] = IROUND64(((GLfloat *) p)[3]);
1377 params[2] = IROUND64(((GLfloat *) p)[2]);
1379 params[1] = IROUND64(((GLfloat *) p)[1]);
1381 params[0] = IROUND64(((GLfloat *) p)[0]);
1385 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1387 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1389 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1391 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1395 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1399 params[3] = ((GLint *) p)[3];
1401 params[2] = ((GLint *) p)[2];
1404 params[1] = ((GLint *) p)[1];
1407 params[0] = ((GLint *) p)[0];
1411 for (i = 0; i < v.value_int_n.n; i++)
1412 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1416 params[0] = ((GLint64 *) p)[0];
1420 params[0] = ((GLboolean*) p)[0];
1424 m = *(GLmatrix **) p;
1425 for (i = 0; i < 16; i++)
1426 params[i] = FLOAT_TO_INT64(m->m[i]);
1430 m = *(GLmatrix **) p;
1431 for (i = 0; i < 16; i++)
1432 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1443 shift = d->type - TYPE_BIT_0;
1444 params[0] = (*(GLbitfield *) p >> shift) & 1;
1450 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1452 const struct value_desc *d;
1458 d = find_value("glGetDoublev", pname, &p, &v);
1463 params[0] = d->offset;
1468 params[3] = ((GLfloat *) p)[3];
1471 params[2] = ((GLfloat *) p)[2];
1474 params[1] = ((GLfloat *) p)[1];
1477 params[0] = ((GLfloat *) p)[0];
1481 params[0] = ((GLdouble *) p)[0];
1485 params[3] = ((GLint *) p)[3];
1487 params[2] = ((GLint *) p)[2];
1490 params[1] = ((GLint *) p)[1];
1493 params[0] = ((GLint *) p)[0];
1497 for (i = 0; i < v.value_int_n.n; i++)
1498 params[i] = v.value_int_n.ints[i];
1502 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1506 params[0] = *(GLboolean*) p;
1510 m = *(GLmatrix **) p;
1511 for (i = 0; i < 16; i++)
1512 params[i] = m->m[i];
1516 m = *(GLmatrix **) p;
1517 for (i = 0; i < 16; i++)
1518 params[i] = m->m[transpose[i]];
1529 shift = d->type - TYPE_BIT_0;
1530 params[0] = (*(GLbitfield *) p >> shift) & 1;
1535 static enum value_type
1536 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1538 GET_CURRENT_CONTEXT(ctx);
1543 if (index >= ctx->Const.MaxDrawBuffers)
1545 if (!ctx->Extensions.EXT_draw_buffers2)
1547 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1552 case GL_BLEND_SRC_RGB:
1553 if (index >= ctx->Const.MaxDrawBuffers)
1555 if (!ctx->Extensions.ARB_draw_buffers_blend)
1557 v->value_int = ctx->Color.Blend[index].SrcRGB;
1559 case GL_BLEND_SRC_ALPHA:
1560 if (index >= ctx->Const.MaxDrawBuffers)
1562 if (!ctx->Extensions.ARB_draw_buffers_blend)
1564 v->value_int = ctx->Color.Blend[index].SrcA;
1568 case GL_BLEND_DST_RGB:
1569 if (index >= ctx->Const.MaxDrawBuffers)
1571 if (!ctx->Extensions.ARB_draw_buffers_blend)
1573 v->value_int = ctx->Color.Blend[index].DstRGB;
1575 case GL_BLEND_DST_ALPHA:
1576 if (index >= ctx->Const.MaxDrawBuffers)
1578 if (!ctx->Extensions.ARB_draw_buffers_blend)
1580 v->value_int = ctx->Color.Blend[index].DstA;
1582 case GL_BLEND_EQUATION_RGB:
1583 if (index >= ctx->Const.MaxDrawBuffers)
1585 if (!ctx->Extensions.ARB_draw_buffers_blend)
1587 v->value_int = ctx->Color.Blend[index].EquationRGB;
1589 case GL_BLEND_EQUATION_ALPHA:
1590 if (index >= ctx->Const.MaxDrawBuffers)
1592 if (!ctx->Extensions.ARB_draw_buffers_blend)
1594 v->value_int = ctx->Color.Blend[index].EquationA;
1597 case GL_COLOR_WRITEMASK:
1598 if (index >= ctx->Const.MaxDrawBuffers)
1600 if (!ctx->Extensions.EXT_draw_buffers2)
1602 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1603 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1604 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1605 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1608 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1609 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1611 if (!ctx->Extensions.EXT_transform_feedback)
1613 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1616 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1617 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1619 if (!ctx->Extensions.EXT_transform_feedback)
1622 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1625 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1626 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1628 if (!ctx->Extensions.EXT_transform_feedback)
1630 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1633 case GL_UNIFORM_BUFFER_BINDING:
1634 if (index >= ctx->Const.MaxUniformBufferBindings)
1636 if (!ctx->Extensions.ARB_uniform_buffer_object)
1638 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1641 case GL_UNIFORM_BUFFER_START:
1642 if (index >= ctx->Const.MaxUniformBufferBindings)
1644 if (!ctx->Extensions.ARB_uniform_buffer_object)
1646 v->value_int = ctx->UniformBufferBindings[index].Offset;
1649 case GL_UNIFORM_BUFFER_SIZE:
1650 if (index >= ctx->Const.MaxUniformBufferBindings)
1652 if (!ctx->Extensions.ARB_uniform_buffer_object)
1654 v->value_int = ctx->UniformBufferBindings[index].Size;
1657 /* ARB_texture_multisample / GL3.2 */
1658 case GL_SAMPLE_MASK_VALUE:
1661 if (!ctx->Extensions.ARB_texture_multisample)
1663 v->value_int = ctx->Multisample.SampleMaskValue;
1668 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1669 _mesa_lookup_enum_by_nr(pname));
1670 return TYPE_INVALID;
1672 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1673 _mesa_lookup_enum_by_nr(pname));
1674 return TYPE_INVALID;
1678 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1681 enum value_type type =
1682 find_value_indexed("glGetBooleani_v", pname, index, &v);
1686 params[0] = INT_TO_BOOLEAN(v.value_int);
1689 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1690 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1691 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1692 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1695 params[0] = INT64_TO_BOOLEAN(v.value_int);
1698 ; /* nothing - GL error was recorded */
1703 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1706 enum value_type type =
1707 find_value_indexed("glGetIntegeri_v", pname, index, &v);
1711 params[0] = v.value_int;
1714 params[0] = v.value_int_4[0];
1715 params[1] = v.value_int_4[1];
1716 params[2] = v.value_int_4[2];
1717 params[3] = v.value_int_4[3];
1720 params[0] = INT64_TO_INT(v.value_int);
1723 ; /* nothing - GL error was recorded */
1728 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
1731 enum value_type type =
1732 find_value_indexed("glGetInteger64i_v", pname, index, &v);
1736 params[0] = v.value_int;
1739 params[0] = v.value_int_4[0];
1740 params[1] = v.value_int_4[1];
1741 params[2] = v.value_int_4[2];
1742 params[3] = v.value_int_4[3];
1745 params[0] = v.value_int;
1748 ; /* nothing - GL error was recorded */
1753 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1755 const struct value_desc *d;
1761 d = find_value("glGetDoublev", pname, &p, &v);
1766 params[0] = INT_TO_FIXED(d->offset);
1771 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1774 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1777 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1780 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1784 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1788 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1790 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1793 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1796 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1800 for (i = 0; i < v.value_int_n.n; i++)
1801 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1805 params[0] = ((GLint64 *) p)[0];
1809 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1813 m = *(GLmatrix **) p;
1814 for (i = 0; i < 16; i++)
1815 params[i] = FLOAT_TO_FIXED(m->m[i]);
1819 m = *(GLmatrix **) p;
1820 for (i = 0; i < 16; i++)
1821 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1832 shift = d->type - TYPE_BIT_0;
1833 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);