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>
29 #include "extensions.h"
32 #include "mfeatures.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
38 /* This is a table driven implemetation of the glGet*v() functions.
39 * The basic idea is that most getters just look up an int somewhere
40 * in struct gl_context and then convert it to a bool or float according to
41 * which of glGetIntegerv() glGetBooleanv() etc is being called.
42 * Instead of generating code to do this, we can just record the enum
43 * value and the offset into struct gl_context in an array of structs. Then
44 * in glGet*(), we lookup the struct for the enum in question, and use
45 * the offset to get the int we need.
47 * Sometimes we need to look up a float, a boolean, a bit in a
48 * bitfield, a matrix or other types instead, so we need to track the
49 * type of the value in struct gl_context. And sometimes the value isn't in
50 * struct gl_context but in the drawbuffer, the array object, current texture
51 * unit, or maybe it's a computed value. So we need to also track
52 * where or how to find the value. Finally, we sometimes need to
53 * check that one of a number of extensions are enabled, the GL
54 * version or flush or call _mesa_update_state(). This is done by
55 * attaching optional extra information to the value description
56 * struct, it's sort of like an array of opcodes that describe extra
59 * Putting all this together we end up with struct value_desc below,
60 * and with a couple of macros to help, the table of struct value_desc
61 * is about as concise as the specification in the old python script.
64 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
65 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
66 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
67 (GLint) ((F) * 65536.0f) )
69 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
70 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
71 ((I) < SHRT_MIN) ? INT_MIN : \
72 (GLint) ((I) * 65536) )
74 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
77 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
78 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
79 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
80 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
82 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
83 #define ENUM_TO_FIXED(E) (E)
118 enum value_location {
136 EXTRA_NEW_FRAG_CLAMP,
137 EXTRA_VALID_DRAW_BUFFER,
138 EXTRA_VALID_TEXTURE_UNIT,
139 EXTRA_VALID_CLIP_DISTANCE,
144 #define NO_EXTRA NULL
149 GLubyte location; /**< enum value_location */
150 GLubyte type; /**< enum value_type */
157 GLfloat value_float_4[4];
158 GLmatrix *value_matrix;
160 GLint value_int_4[4];
164 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
168 GLboolean value_bool;
171 #define BUFFER_FIELD(field, type) \
172 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
173 #define CONTEXT_FIELD(field, type) \
174 LOC_CONTEXT, type, offsetof(struct gl_context, field)
175 #define ARRAY_FIELD(field, type) \
176 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
177 #undef CONST /* already defined through windows.h */
178 #define CONST(value) \
179 LOC_CONTEXT, TYPE_CONST, value
181 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
182 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
183 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
185 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
186 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
187 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
188 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
189 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
190 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
191 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
192 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
193 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
194 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
195 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
196 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
197 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
198 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
199 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
200 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
201 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
202 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
203 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
204 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
206 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
207 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
208 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
211 offsetof(struct gl_extensions, f)
213 #define EXTRA_EXT(e) \
214 static const int extra_##e[] = { \
218 #define EXTRA_EXT2(e1, e2) \
219 static const int extra_##e1##_##e2[] = { \
220 EXT(e1), EXT(e2), EXTRA_END \
223 /* The 'extra' mechanism is a way to specify extra checks (such as
224 * extensions or specific gl versions) or actions (flush current, new
225 * buffers) that we need to do before looking up an enum. We need to
226 * declare them all up front so we can refer to them in the value_desc
229 static const int extra_new_buffers[] = {
234 static const int extra_new_frag_clamp[] = {
235 EXTRA_NEW_FRAG_CLAMP,
239 static const int extra_valid_draw_buffer[] = {
240 EXTRA_VALID_DRAW_BUFFER,
244 static const int extra_valid_texture_unit[] = {
245 EXTRA_VALID_TEXTURE_UNIT,
249 static const int extra_valid_clip_distance[] = {
250 EXTRA_VALID_CLIP_DISTANCE,
254 static const int extra_flush_current_valid_texture_unit[] = {
256 EXTRA_VALID_TEXTURE_UNIT,
260 static const int extra_flush_current[] = {
265 static const int extra_EXT_secondary_color_flush_current[] = {
266 EXT(EXT_secondary_color),
271 static const int extra_EXT_fog_coord_flush_current[] = {
277 static const int extra_EXT_texture_integer[] = {
278 EXT(EXT_texture_integer),
282 static const int extra_GLSL_130[] = {
287 static const int extra_texture_buffer_object[] = {
290 EXT(ARB_texture_buffer_object),
294 static const int extra_ARB_transform_feedback2_api_es3[] = {
295 EXT(ARB_transform_feedback2),
300 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
301 EXT(ARB_uniform_buffer_object),
302 EXT(ARB_geometry_shader4),
306 static const int extra_ARB_ES2_compatibility_api_es2[] = {
307 EXT(ARB_ES2_compatibility),
312 static const int extra_ARB_ES3_compatibility_api_es3[] = {
313 EXT(ARB_ES3_compatibility),
318 EXTRA_EXT(ARB_texture_cube_map);
319 EXTRA_EXT(MESA_texture_array);
320 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
321 EXTRA_EXT(EXT_secondary_color);
322 EXTRA_EXT(EXT_fog_coord);
323 EXTRA_EXT(NV_fog_distance);
324 EXTRA_EXT(EXT_texture_filter_anisotropic);
325 EXTRA_EXT(NV_point_sprite);
326 EXTRA_EXT(NV_texture_rectangle);
327 EXTRA_EXT(EXT_stencil_two_side);
328 EXTRA_EXT(EXT_depth_bounds_test);
329 EXTRA_EXT(ARB_depth_clamp);
330 EXTRA_EXT(ATI_fragment_shader);
331 EXTRA_EXT(EXT_framebuffer_blit);
332 EXTRA_EXT(ARB_shader_objects);
333 EXTRA_EXT(EXT_provoking_vertex);
334 EXTRA_EXT(ARB_fragment_shader);
335 EXTRA_EXT(ARB_fragment_program);
336 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
337 EXTRA_EXT(EXT_framebuffer_object);
338 EXTRA_EXT(ARB_seamless_cube_map);
340 EXTRA_EXT(ARB_vertex_shader);
341 EXTRA_EXT(EXT_transform_feedback);
342 EXTRA_EXT(ARB_transform_feedback3);
343 EXTRA_EXT(EXT_pixel_buffer_object);
344 EXTRA_EXT(ARB_vertex_program);
345 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
346 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
347 EXTRA_EXT(ARB_geometry_shader4);
348 EXTRA_EXT(ARB_color_buffer_float);
349 EXTRA_EXT(EXT_framebuffer_sRGB);
350 EXTRA_EXT(OES_EGL_image_external);
351 EXTRA_EXT(ARB_blend_func_extended);
352 EXTRA_EXT(ARB_uniform_buffer_object);
353 EXTRA_EXT(ARB_timer_query);
354 EXTRA_EXT(ARB_map_buffer_alignment);
355 EXTRA_EXT(ARB_texture_cube_map_array);
356 EXTRA_EXT(ARB_texture_buffer_range);
357 EXTRA_EXT(ARB_texture_multisample);
360 extra_NV_primitive_restart[] = {
361 EXT(NV_primitive_restart),
365 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
366 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
367 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
369 static const int extra_gl30_es3[] = {
376 extra_ARB_vertex_program_api_es2[] = {
377 EXT(ARB_vertex_program),
382 /* The ReadBuffer get token is valid under either full GL or under
383 * GLES2 if the NV_read_buffer extension is available. */
385 extra_NV_read_buffer_api_gl[] = {
391 /* This is the big table describing all the enums we accept in
392 * glGet*v(). The table is partitioned into six parts: enums
393 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
394 * between OpenGL and GLES, enums exclusive to GLES, etc for the
395 * remaining combinations. To look up the enums valid in a given API
396 * we will use a hash table specific to that API. These tables are in
397 * turn generated at build time and included through get_hash.h.
398 * The different sections are guarded by #if FEATURE_GL etc to make
399 * sure we only compile in the enums we may need. */
401 #include "get_hash.h"
403 /* All we need now is a way to look up the value struct from the enum.
404 * The code generated by gcc for the old generated big switch
405 * statement is a big, balanced, open coded if/else tree, essentially
406 * an unrolled binary search. It would be natural to sort the new
407 * enum table and use bsearch(), but we will use a read-only hash
408 * table instead. bsearch() has a nice guaranteed worst case
409 * performance, but we're also guaranteed to hit that worst case
410 * (log2(n) iterations) for about half the enums. Instead, using an
411 * open addressing hash table, we can find the enum on the first try
412 * for 80% of the enums, 1 collision for 10% and never more than 5
413 * collisions for any enum (typical numbers). And the code is very
414 * simple, even though it feels a little magic. */
418 print_table_stats(int api)
420 int i, j, collisions[11], count, hash, mask;
421 const struct value_desc *d;
422 const char *api_names[] = {
423 [API_OPENGL_COMPAT] = "GL",
424 [API_OPENGL_CORE] = "GL_CORE",
425 [API_OPENGLES] = "GLES",
426 [API_OPENGLES2] = "GLES2",
428 const char *api_name;
430 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
432 mask = Elements(table(api)) - 1;
433 memset(collisions, 0, sizeof collisions);
435 for (i = 0; i < Elements(table(api)); i++) {
439 d = &values[table(api)[i]];
440 hash = (d->pname * prime_factor);
443 if (values[table(api)[hash & mask]].pname == d->pname)
455 printf("number of enums for %s: %d (total %ld)\n",
456 api_name, count, Elements(values));
457 for (i = 0; i < Elements(collisions) - 1; i++)
458 if (collisions[i] > 0)
459 printf(" %d enums with %d %scollisions\n",
460 collisions[i], i, i == 10 ? "or more " : "");
465 * Initialize the enum hash for a given API
467 * This is called from one_time_init() to insert the enum values that
468 * are valid for the API in question into the enum hash table.
470 * \param the current context, for determining the API in question
472 void _mesa_init_get_hash(struct gl_context *ctx)
480 * Handle irregular enums
482 * Some values don't conform to the "well-known type at context
483 * pointer + offset" pattern, so we have this function to catch all
484 * the corner cases. Typically, it's a computed value or a one-off
485 * pointer to a custom struct or something.
487 * In this case we can't return a pointer to the value, so we'll have
488 * to use the temporary variable 'v' declared back in the calling
489 * glGet*v() function to store the result.
491 * \param ctx the current context
492 * \param d the struct value_desc that describes the enum
493 * \param v pointer to the tmp declared in the calling glGet*v() function
496 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
498 struct gl_buffer_object **buffer_obj;
499 struct gl_client_array *array;
503 case GL_MAJOR_VERSION:
504 v->value_int = ctx->Version / 10;
506 case GL_MINOR_VERSION:
507 v->value_int = ctx->Version % 10;
513 case GL_TEXTURE_1D_ARRAY_EXT:
514 case GL_TEXTURE_2D_ARRAY_EXT:
515 case GL_TEXTURE_CUBE_MAP_ARB:
516 case GL_TEXTURE_RECTANGLE_NV:
517 case GL_TEXTURE_EXTERNAL_OES:
518 v->value_bool = _mesa_IsEnabled(d->pname);
521 case GL_LINE_STIPPLE_PATTERN:
522 /* This is the only GLushort, special case it here by promoting
523 * to an int rather than introducing a new type. */
524 v->value_int = ctx->Line.StipplePattern;
527 case GL_CURRENT_RASTER_TEXTURE_COORDS:
528 unit = ctx->Texture.CurrentUnit;
529 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
530 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
531 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
532 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
535 case GL_CURRENT_TEXTURE_COORDS:
536 unit = ctx->Texture.CurrentUnit;
537 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
538 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
539 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
540 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
543 case GL_COLOR_WRITEMASK:
544 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
545 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
546 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
547 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
551 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
555 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
558 case GL_MAP2_GRID_DOMAIN:
559 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
560 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
561 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
562 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
565 case GL_TEXTURE_STACK_DEPTH:
566 unit = ctx->Texture.CurrentUnit;
567 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
569 case GL_TEXTURE_MATRIX:
570 unit = ctx->Texture.CurrentUnit;
571 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
574 case GL_TEXTURE_COORD_ARRAY:
575 case GL_TEXTURE_COORD_ARRAY_SIZE:
576 case GL_TEXTURE_COORD_ARRAY_TYPE:
577 case GL_TEXTURE_COORD_ARRAY_STRIDE:
578 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
579 v->value_int = *(GLuint *) ((char *) array + d->offset);
582 case GL_ACTIVE_TEXTURE_ARB:
583 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
585 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
586 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
589 case GL_MODELVIEW_STACK_DEPTH:
590 case GL_PROJECTION_STACK_DEPTH:
591 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
594 case GL_MAX_TEXTURE_SIZE:
595 case GL_MAX_3D_TEXTURE_SIZE:
596 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
597 p = (GLuint *) ((char *) ctx + d->offset);
598 v->value_int = 1 << (*p - 1);
602 v->value_int_4[0] = ctx->Scissor.X;
603 v->value_int_4[1] = ctx->Scissor.Y;
604 v->value_int_4[2] = ctx->Scissor.Width;
605 v->value_int_4[3] = ctx->Scissor.Height;
610 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
613 if (!ctx->CompileFlag)
615 else if (ctx->ExecuteFlag)
616 v->value_enum = GL_COMPILE_AND_EXECUTE;
618 v->value_enum = GL_COMPILE;
622 v->value_int_4[0] = ctx->Viewport.X;
623 v->value_int_4[1] = ctx->Viewport.Y;
624 v->value_int_4[2] = ctx->Viewport.Width;
625 v->value_int_4[3] = ctx->Viewport.Height;
628 case GL_ACTIVE_STENCIL_FACE_EXT:
629 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
632 case GL_STENCIL_FAIL:
633 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
635 case GL_STENCIL_FUNC:
636 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
638 case GL_STENCIL_PASS_DEPTH_FAIL:
639 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
641 case GL_STENCIL_PASS_DEPTH_PASS:
642 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
645 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
647 case GL_STENCIL_VALUE_MASK:
648 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
650 case GL_STENCIL_WRITEMASK:
651 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
654 case GL_NUM_EXTENSIONS:
655 v->value_int = _mesa_get_extension_count(ctx);
658 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
659 v->value_int = _mesa_get_color_read_type(ctx);
661 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
662 v->value_int = _mesa_get_color_read_format(ctx);
665 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
666 v->value_int = ctx->CurrentStack->Depth + 1;
668 case GL_CURRENT_MATRIX_ARB:
669 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
670 v->value_matrix = ctx->CurrentStack->Top;
673 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
674 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
676 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
678 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
679 ASSERT(v->value_int_n.n <= 100);
682 case GL_MAX_VARYING_FLOATS_ARB:
683 v->value_int = ctx->Const.MaxVarying * 4;
686 /* Various object names */
688 case GL_TEXTURE_BINDING_1D:
689 case GL_TEXTURE_BINDING_2D:
690 case GL_TEXTURE_BINDING_3D:
691 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
692 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
693 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
694 case GL_TEXTURE_BINDING_RECTANGLE_NV:
695 case GL_TEXTURE_BINDING_EXTERNAL_OES:
696 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
697 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
698 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
699 unit = ctx->Texture.CurrentUnit;
701 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
704 /* GL_ARB_vertex_buffer_object */
705 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
706 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
707 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
708 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
709 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
710 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
711 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
712 buffer_obj = (struct gl_buffer_object **)
713 ((char *) ctx->Array.ArrayObj + d->offset);
714 v->value_int = (*buffer_obj)->Name;
716 case GL_ARRAY_BUFFER_BINDING_ARB:
717 v->value_int = ctx->Array.ArrayBufferObj->Name;
719 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
721 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
723 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
724 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
727 /* ARB_copy_buffer */
728 case GL_COPY_READ_BUFFER:
729 v->value_int = ctx->CopyReadBuffer->Name;
731 case GL_COPY_WRITE_BUFFER:
732 v->value_int = ctx->CopyWriteBuffer->Name;
735 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
736 v->value_int = ctx->Pack.BufferObj->Name;
738 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
739 v->value_int = ctx->Unpack.BufferObj->Name;
741 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
742 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
744 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
745 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
747 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
748 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
750 case GL_TRANSFORM_FEEDBACK_BINDING:
751 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
753 case GL_CURRENT_PROGRAM:
755 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
757 case GL_READ_FRAMEBUFFER_BINDING_EXT:
758 v->value_int = ctx->ReadBuffer->Name;
760 case GL_RENDERBUFFER_BINDING_EXT:
762 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
764 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
765 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
769 if(ctx->Color._ClampFragmentColor)
770 COPY_4FV(v->value_float_4, ctx->Fog.Color);
772 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
774 case GL_COLOR_CLEAR_VALUE:
775 if(ctx->Color._ClampFragmentColor) {
776 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
777 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
778 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
779 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
781 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
783 case GL_BLEND_COLOR_EXT:
784 if(ctx->Color._ClampFragmentColor)
785 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
787 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
789 case GL_ALPHA_TEST_REF:
790 if(ctx->Color._ClampFragmentColor)
791 v->value_float = ctx->Color.AlphaRef;
793 v->value_float = ctx->Color.AlphaRefUnclamped;
795 case GL_MAX_VERTEX_UNIFORM_VECTORS:
796 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
799 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
800 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
803 /* GL_ARB_texture_buffer_object */
804 case GL_TEXTURE_BUFFER_ARB:
805 v->value_int = ctx->Texture.BufferObject->Name;
807 case GL_TEXTURE_BINDING_BUFFER_ARB:
808 unit = ctx->Texture.CurrentUnit;
810 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
812 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
814 struct gl_buffer_object *buf =
815 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
816 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
817 v->value_int = buf ? buf->Name : 0;
820 case GL_TEXTURE_BUFFER_FORMAT_ARB:
821 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
822 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
825 /* GL_ARB_sampler_objects */
826 case GL_SAMPLER_BINDING:
828 struct gl_sampler_object *samp =
829 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
830 v->value_int = samp ? samp->Name : 0;
833 /* GL_ARB_uniform_buffer_object */
834 case GL_UNIFORM_BUFFER_BINDING:
835 v->value_int = ctx->UniformBuffer->Name;
837 /* GL_ARB_timer_query */
839 if (ctx->Driver.GetTimestamp) {
840 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
843 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
850 * Check extra constraints on a struct value_desc descriptor
852 * If a struct value_desc has a non-NULL extra pointer, it means that
853 * there are a number of extra constraints to check or actions to
854 * perform. The extras is just an integer array where each integer
855 * encode different constraints or actions.
857 * \param ctx current context
858 * \param func name of calling glGet*v() function for error reporting
859 * \param d the struct value_desc that has the extra constraints
861 * \return GL_FALSE if one of the constraints was not satisfied,
865 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
867 const GLuint version = ctx->Version;
873 for (e = d->extra; *e != EXTRA_END; e++)
875 case EXTRA_VERSION_30:
881 case EXTRA_VERSION_31:
887 case EXTRA_VERSION_32:
893 case EXTRA_NEW_FRAG_CLAMP:
894 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
895 _mesa_update_state(ctx);
898 if (ctx->API == API_OPENGLES2) {
904 if (_mesa_is_gles3(ctx)) {
910 if (_mesa_is_desktop_gl(ctx)) {
915 case EXTRA_API_GL_CORE:
916 if (ctx->API == API_OPENGL_CORE) {
921 case EXTRA_NEW_BUFFERS:
922 if (ctx->NewState & _NEW_BUFFERS)
923 _mesa_update_state(ctx);
925 case EXTRA_FLUSH_CURRENT:
926 FLUSH_CURRENT(ctx, 0);
928 case EXTRA_VALID_DRAW_BUFFER:
929 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
930 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
931 func, d->pname - GL_DRAW_BUFFER0_ARB);
935 case EXTRA_VALID_TEXTURE_UNIT:
936 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
937 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
938 func, ctx->Texture.CurrentUnit);
942 case EXTRA_VALID_CLIP_DISTANCE:
943 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
944 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
945 func, d->pname - GL_CLIP_DISTANCE0);
950 if (ctx->Const.GLSLVersion >= 130) {
957 default: /* *e is a offset into the extension struct */
959 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
964 if (total > 0 && enabled == 0) {
965 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
966 _mesa_lookup_enum_by_nr(d->pname));
973 static const struct value_desc error_value =
974 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
977 * Find the struct value_desc corresponding to the enum 'pname'.
979 * We hash the enum value to get an index into the 'table' array,
980 * which holds the index in the 'values' array of struct value_desc.
981 * Once we've found the entry, we do the extra checks, if any, then
982 * look up the value and return a pointer to it.
984 * If the value has to be computed (for example, it's the result of a
985 * function call or we need to add 1 to it), we use the tmp 'v' to
988 * \param func name of glGet*v() func for error reporting
989 * \param pname the enum value we're looking up
990 * \param p is were we return the pointer to the value
991 * \param v a tmp union value variable in the calling glGet*v() function
993 * \return the struct value_desc corresponding to the enum or a struct
994 * value_desc of TYPE_INVALID if not found. This lets the calling
995 * glGet*v() function jump right into a switch statement and
996 * handle errors there instead of having to check for NULL.
998 static const struct value_desc *
999 find_value(const char *func, GLenum pname, void **p, union value *v)
1001 GET_CURRENT_CONTEXT(ctx);
1002 struct gl_texture_unit *unit;
1004 const struct value_desc *d;
1008 /* We index into the table_set[] list of per-API hash tables using the API's
1009 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1010 * value since it's compatible with GLES2 its entry in table_set[] is at the
1013 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
1014 if (_mesa_is_gles3(ctx)) {
1015 api = API_OPENGL_LAST + 1;
1017 mask = Elements(table(api)) - 1;
1018 hash = (pname * prime_factor);
1020 int idx = table(api)[hash & mask];
1022 /* If the enum isn't valid, the hash walk ends with index 0,
1023 * pointing to the first entry of values[] which doesn't hold
1024 * any valid enum. */
1025 if (unlikely(idx == 0)) {
1026 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1027 _mesa_lookup_enum_by_nr(pname));
1028 return &error_value;
1032 if (likely(d->pname == pname))
1038 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1039 return &error_value;
1041 switch (d->location) {
1043 *p = ((char *) ctx->DrawBuffer + d->offset);
1046 *p = ((char *) ctx + d->offset);
1049 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1052 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1053 *p = ((char *) unit + d->offset);
1056 find_custom_value(ctx, d, v);
1064 /* silence warning */
1065 return &error_value;
1068 static const int transpose[] = {
1076 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1078 const struct value_desc *d;
1084 d = find_value("glGetBooleanv", pname, &p, &v);
1089 params[0] = INT_TO_BOOLEAN(d->offset);
1094 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1097 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1100 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1103 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1107 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1111 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1113 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1116 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1119 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1123 for (i = 0; i < v.value_int_n.n; i++)
1124 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1128 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1132 params[0] = ((GLboolean*) p)[0];
1136 m = *(GLmatrix **) p;
1137 for (i = 0; i < 16; i++)
1138 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1142 m = *(GLmatrix **) p;
1143 for (i = 0; i < 16; i++)
1144 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1155 shift = d->type - TYPE_BIT_0;
1156 params[0] = (*(GLbitfield *) p >> shift) & 1;
1162 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1164 const struct value_desc *d;
1170 d = find_value("glGetFloatv", pname, &p, &v);
1175 params[0] = (GLfloat) d->offset;
1180 params[3] = ((GLfloat *) p)[3];
1183 params[2] = ((GLfloat *) p)[2];
1186 params[1] = ((GLfloat *) p)[1];
1189 params[0] = ((GLfloat *) p)[0];
1193 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1197 params[3] = (GLfloat) (((GLint *) p)[3]);
1199 params[2] = (GLfloat) (((GLint *) p)[2]);
1202 params[1] = (GLfloat) (((GLint *) p)[1]);
1205 params[0] = (GLfloat) (((GLint *) p)[0]);
1209 for (i = 0; i < v.value_int_n.n; i++)
1210 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1214 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1218 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1222 m = *(GLmatrix **) p;
1223 for (i = 0; i < 16; i++)
1224 params[i] = m->m[i];
1228 m = *(GLmatrix **) p;
1229 for (i = 0; i < 16; i++)
1230 params[i] = m->m[transpose[i]];
1241 shift = d->type - TYPE_BIT_0;
1242 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1248 _mesa_GetIntegerv(GLenum pname, GLint *params)
1250 const struct value_desc *d;
1256 d = find_value("glGetIntegerv", pname, &p, &v);
1261 params[0] = d->offset;
1265 params[3] = IROUND(((GLfloat *) p)[3]);
1267 params[2] = IROUND(((GLfloat *) p)[2]);
1269 params[1] = IROUND(((GLfloat *) p)[1]);
1271 params[0] = IROUND(((GLfloat *) p)[0]);
1275 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1277 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1279 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1281 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1285 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1289 params[3] = ((GLint *) p)[3];
1291 params[2] = ((GLint *) p)[2];
1294 params[1] = ((GLint *) p)[1];
1297 params[0] = ((GLint *) p)[0];
1301 for (i = 0; i < v.value_int_n.n; i++)
1302 params[i] = v.value_int_n.ints[i];
1306 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1310 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1314 m = *(GLmatrix **) p;
1315 for (i = 0; i < 16; i++)
1316 params[i] = FLOAT_TO_INT(m->m[i]);
1320 m = *(GLmatrix **) p;
1321 for (i = 0; i < 16; i++)
1322 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1333 shift = d->type - TYPE_BIT_0;
1334 params[0] = (*(GLbitfield *) p >> shift) & 1;
1340 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1342 const struct value_desc *d;
1348 d = find_value("glGetInteger64v", pname, &p, &v);
1353 params[0] = d->offset;
1357 params[3] = IROUND64(((GLfloat *) p)[3]);
1359 params[2] = IROUND64(((GLfloat *) p)[2]);
1361 params[1] = IROUND64(((GLfloat *) p)[1]);
1363 params[0] = IROUND64(((GLfloat *) p)[0]);
1367 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1369 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1371 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1373 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1377 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1381 params[3] = ((GLint *) p)[3];
1383 params[2] = ((GLint *) p)[2];
1386 params[1] = ((GLint *) p)[1];
1389 params[0] = ((GLint *) p)[0];
1393 for (i = 0; i < v.value_int_n.n; i++)
1394 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1398 params[0] = ((GLint64 *) p)[0];
1402 params[0] = ((GLboolean*) p)[0];
1406 m = *(GLmatrix **) p;
1407 for (i = 0; i < 16; i++)
1408 params[i] = FLOAT_TO_INT64(m->m[i]);
1412 m = *(GLmatrix **) p;
1413 for (i = 0; i < 16; i++)
1414 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1425 shift = d->type - TYPE_BIT_0;
1426 params[0] = (*(GLbitfield *) p >> shift) & 1;
1432 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1434 const struct value_desc *d;
1440 d = find_value("glGetDoublev", pname, &p, &v);
1445 params[0] = d->offset;
1450 params[3] = ((GLfloat *) p)[3];
1453 params[2] = ((GLfloat *) p)[2];
1456 params[1] = ((GLfloat *) p)[1];
1459 params[0] = ((GLfloat *) p)[0];
1463 params[0] = ((GLdouble *) p)[0];
1467 params[3] = ((GLint *) p)[3];
1469 params[2] = ((GLint *) p)[2];
1472 params[1] = ((GLint *) p)[1];
1475 params[0] = ((GLint *) p)[0];
1479 for (i = 0; i < v.value_int_n.n; i++)
1480 params[i] = v.value_int_n.ints[i];
1484 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1488 params[0] = *(GLboolean*) p;
1492 m = *(GLmatrix **) p;
1493 for (i = 0; i < 16; i++)
1494 params[i] = m->m[i];
1498 m = *(GLmatrix **) p;
1499 for (i = 0; i < 16; i++)
1500 params[i] = m->m[transpose[i]];
1511 shift = d->type - TYPE_BIT_0;
1512 params[0] = (*(GLbitfield *) p >> shift) & 1;
1517 static enum value_type
1518 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1520 GET_CURRENT_CONTEXT(ctx);
1525 if (index >= ctx->Const.MaxDrawBuffers)
1527 if (!ctx->Extensions.EXT_draw_buffers2)
1529 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1534 case GL_BLEND_SRC_RGB:
1535 if (index >= ctx->Const.MaxDrawBuffers)
1537 if (!ctx->Extensions.ARB_draw_buffers_blend)
1539 v->value_int = ctx->Color.Blend[index].SrcRGB;
1541 case GL_BLEND_SRC_ALPHA:
1542 if (index >= ctx->Const.MaxDrawBuffers)
1544 if (!ctx->Extensions.ARB_draw_buffers_blend)
1546 v->value_int = ctx->Color.Blend[index].SrcA;
1550 case GL_BLEND_DST_RGB:
1551 if (index >= ctx->Const.MaxDrawBuffers)
1553 if (!ctx->Extensions.ARB_draw_buffers_blend)
1555 v->value_int = ctx->Color.Blend[index].DstRGB;
1557 case GL_BLEND_DST_ALPHA:
1558 if (index >= ctx->Const.MaxDrawBuffers)
1560 if (!ctx->Extensions.ARB_draw_buffers_blend)
1562 v->value_int = ctx->Color.Blend[index].DstA;
1564 case GL_BLEND_EQUATION_RGB:
1565 if (index >= ctx->Const.MaxDrawBuffers)
1567 if (!ctx->Extensions.ARB_draw_buffers_blend)
1569 v->value_int = ctx->Color.Blend[index].EquationRGB;
1571 case GL_BLEND_EQUATION_ALPHA:
1572 if (index >= ctx->Const.MaxDrawBuffers)
1574 if (!ctx->Extensions.ARB_draw_buffers_blend)
1576 v->value_int = ctx->Color.Blend[index].EquationA;
1579 case GL_COLOR_WRITEMASK:
1580 if (index >= ctx->Const.MaxDrawBuffers)
1582 if (!ctx->Extensions.EXT_draw_buffers2)
1584 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1585 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1586 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1587 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1590 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1591 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1593 if (!ctx->Extensions.EXT_transform_feedback)
1595 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1598 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1599 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1601 if (!ctx->Extensions.EXT_transform_feedback)
1604 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1607 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1608 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1610 if (!ctx->Extensions.EXT_transform_feedback)
1612 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1615 case GL_UNIFORM_BUFFER_BINDING:
1616 if (index >= ctx->Const.MaxUniformBufferBindings)
1618 if (!ctx->Extensions.ARB_uniform_buffer_object)
1620 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1623 case GL_UNIFORM_BUFFER_START:
1624 if (index >= ctx->Const.MaxUniformBufferBindings)
1626 if (!ctx->Extensions.ARB_uniform_buffer_object)
1628 v->value_int = ctx->UniformBufferBindings[index].Offset;
1631 case GL_UNIFORM_BUFFER_SIZE:
1632 if (index >= ctx->Const.MaxUniformBufferBindings)
1634 if (!ctx->Extensions.ARB_uniform_buffer_object)
1636 v->value_int = ctx->UniformBufferBindings[index].Size;
1639 /* ARB_texture_multisample / GL3.2 */
1640 case GL_SAMPLE_MASK_VALUE:
1643 if (!ctx->Extensions.ARB_texture_multisample)
1645 v->value_int = ctx->Multisample.SampleMaskValue;
1650 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1651 _mesa_lookup_enum_by_nr(pname));
1652 return TYPE_INVALID;
1654 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1655 _mesa_lookup_enum_by_nr(pname));
1656 return TYPE_INVALID;
1660 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1663 enum value_type type =
1664 find_value_indexed("glGetBooleani_v", pname, index, &v);
1668 params[0] = INT_TO_BOOLEAN(v.value_int);
1671 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1672 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1673 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1674 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1677 params[0] = INT64_TO_BOOLEAN(v.value_int);
1680 ; /* nothing - GL error was recorded */
1685 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1688 enum value_type type =
1689 find_value_indexed("glGetIntegeri_v", pname, index, &v);
1693 params[0] = v.value_int;
1696 params[0] = v.value_int_4[0];
1697 params[1] = v.value_int_4[1];
1698 params[2] = v.value_int_4[2];
1699 params[3] = v.value_int_4[3];
1702 params[0] = INT64_TO_INT(v.value_int);
1705 ; /* nothing - GL error was recorded */
1710 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
1713 enum value_type type =
1714 find_value_indexed("glGetInteger64i_v", pname, index, &v);
1718 params[0] = v.value_int;
1721 params[0] = v.value_int_4[0];
1722 params[1] = v.value_int_4[1];
1723 params[2] = v.value_int_4[2];
1724 params[3] = v.value_int_4[3];
1727 params[0] = v.value_int;
1730 ; /* nothing - GL error was recorded */
1735 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1737 const struct value_desc *d;
1743 d = find_value("glGetDoublev", pname, &p, &v);
1748 params[0] = INT_TO_FIXED(d->offset);
1753 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1756 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1759 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1762 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1766 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1770 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1772 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1775 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1778 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1782 for (i = 0; i < v.value_int_n.n; i++)
1783 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1787 params[0] = ((GLint64 *) p)[0];
1791 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1795 m = *(GLmatrix **) p;
1796 for (i = 0; i < 16; i++)
1797 params[i] = FLOAT_TO_FIXED(m->m[i]);
1801 m = *(GLmatrix **) p;
1802 for (i = 0; i < 16; i++)
1803 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1814 shift = d->type - TYPE_BIT_0;
1815 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);