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 {
134 EXTRA_NEW_FRAG_CLAMP,
135 EXTRA_VALID_DRAW_BUFFER,
136 EXTRA_VALID_TEXTURE_UNIT,
137 EXTRA_VALID_CLIP_DISTANCE,
142 #define NO_EXTRA NULL
147 GLubyte location; /**< enum value_location */
148 GLubyte type; /**< enum value_type */
155 GLfloat value_float_4[4];
156 GLmatrix *value_matrix;
158 GLint value_int_4[4];
162 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
166 GLboolean value_bool;
169 #define BUFFER_FIELD(field, type) \
170 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
171 #define CONTEXT_FIELD(field, type) \
172 LOC_CONTEXT, type, offsetof(struct gl_context, field)
173 #define ARRAY_FIELD(field, type) \
174 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
175 #undef CONST /* already defined through windows.h */
176 #define CONST(value) \
177 LOC_CONTEXT, TYPE_CONST, value
179 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
180 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
181 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
183 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
184 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
185 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
186 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
187 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
188 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
190 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
191 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
192 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
193 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
194 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
195 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
196 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
197 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
198 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
199 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
200 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
201 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
202 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
204 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
205 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
206 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
209 offsetof(struct gl_extensions, f)
211 #define EXTRA_EXT(e) \
212 static const int extra_##e[] = { \
216 #define EXTRA_EXT2(e1, e2) \
217 static const int extra_##e1##_##e2[] = { \
218 EXT(e1), EXT(e2), EXTRA_END \
221 /* The 'extra' mechanism is a way to specify extra checks (such as
222 * extensions or specific gl versions) or actions (flush current, new
223 * buffers) that we need to do before looking up an enum. We need to
224 * declare them all up front so we can refer to them in the value_desc
227 static const int extra_new_buffers[] = {
232 static const int extra_new_frag_clamp[] = {
233 EXTRA_NEW_FRAG_CLAMP,
237 static const int extra_valid_draw_buffer[] = {
238 EXTRA_VALID_DRAW_BUFFER,
242 static const int extra_valid_texture_unit[] = {
243 EXTRA_VALID_TEXTURE_UNIT,
247 static const int extra_valid_clip_distance[] = {
248 EXTRA_VALID_CLIP_DISTANCE,
252 static const int extra_flush_current_valid_texture_unit[] = {
254 EXTRA_VALID_TEXTURE_UNIT,
258 static const int extra_flush_current[] = {
263 static const int extra_EXT_secondary_color_flush_current[] = {
264 EXT(EXT_secondary_color),
269 static const int extra_EXT_fog_coord_flush_current[] = {
275 static const int extra_EXT_texture_integer[] = {
276 EXT(EXT_texture_integer),
280 static const int extra_GLSL_130[] = {
285 static const int extra_texture_buffer_object[] = {
287 EXT(ARB_texture_buffer_object),
291 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
292 EXT(ARB_uniform_buffer_object),
293 EXT(ARB_geometry_shader4),
298 EXTRA_EXT(ARB_ES2_compatibility);
299 EXTRA_EXT(ARB_texture_cube_map);
300 EXTRA_EXT(MESA_texture_array);
301 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
302 EXTRA_EXT(EXT_secondary_color);
303 EXTRA_EXT(EXT_fog_coord);
304 EXTRA_EXT(NV_fog_distance);
305 EXTRA_EXT(EXT_texture_filter_anisotropic);
306 EXTRA_EXT(IBM_rasterpos_clip);
307 EXTRA_EXT(NV_point_sprite);
308 EXTRA_EXT(NV_texture_rectangle);
309 EXTRA_EXT(EXT_stencil_two_side);
310 EXTRA_EXT(NV_light_max_exponent);
311 EXTRA_EXT(EXT_depth_bounds_test);
312 EXTRA_EXT(ARB_depth_clamp);
313 EXTRA_EXT(ATI_fragment_shader);
314 EXTRA_EXT(EXT_framebuffer_blit);
315 EXTRA_EXT(ARB_shader_objects);
316 EXTRA_EXT(EXT_provoking_vertex);
317 EXTRA_EXT(ARB_fragment_shader);
318 EXTRA_EXT(ARB_fragment_program);
319 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
320 EXTRA_EXT(EXT_framebuffer_object);
321 EXTRA_EXT(ARB_seamless_cube_map);
322 EXTRA_EXT(EXT_compiled_vertex_array);
324 EXTRA_EXT(ARB_vertex_shader);
325 EXTRA_EXT(EXT_transform_feedback);
326 EXTRA_EXT(ARB_transform_feedback2);
327 EXTRA_EXT(ARB_transform_feedback3);
328 EXTRA_EXT(EXT_pixel_buffer_object);
329 EXTRA_EXT(ARB_vertex_program);
330 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
331 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
332 EXTRA_EXT(ARB_geometry_shader4);
333 EXTRA_EXT(ARB_color_buffer_float);
334 EXTRA_EXT(EXT_framebuffer_sRGB);
335 EXTRA_EXT(ARB_texture_buffer_object);
336 EXTRA_EXT(OES_EGL_image_external);
337 EXTRA_EXT(ARB_blend_func_extended);
338 EXTRA_EXT(ARB_uniform_buffer_object);
339 EXTRA_EXT(ARB_timer_query);
340 EXTRA_EXT(ARB_map_buffer_alignment);
343 extra_NV_primitive_restart[] = {
344 EXT(NV_primitive_restart),
348 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
349 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
350 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
353 extra_ARB_vertex_program_api_es2[] = {
354 EXT(ARB_vertex_program),
359 /* The ReadBuffer get token is valid under either full GL or under
360 * GLES2 if the NV_read_buffer extension is available. */
362 extra_NV_read_buffer_api_gl[] = {
368 /* This is the big table describing all the enums we accept in
369 * glGet*v(). The table is partitioned into six parts: enums
370 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
371 * between OpenGL and GLES, enums exclusive to GLES, etc for the
372 * remaining combinations. To look up the enums valid in a given API
373 * we will use a hash table specific to that API. These tables are in
374 * turn generated at build time and included through get_hash.h.
375 * The different sections are guarded by #if FEATURE_GL etc to make
376 * sure we only compile in the enums we may need. */
378 #include "get_hash.h"
380 /* All we need now is a way to look up the value struct from the enum.
381 * The code generated by gcc for the old generated big switch
382 * statement is a big, balanced, open coded if/else tree, essentially
383 * an unrolled binary search. It would be natural to sort the new
384 * enum table and use bsearch(), but we will use a read-only hash
385 * table instead. bsearch() has a nice guaranteed worst case
386 * performance, but we're also guaranteed to hit that worst case
387 * (log2(n) iterations) for about half the enums. Instead, using an
388 * open addressing hash table, we can find the enum on the first try
389 * for 80% of the enums, 1 collision for 10% and never more than 5
390 * collisions for any enum (typical numbers). And the code is very
391 * simple, even though it feels a little magic. */
395 print_table_stats(int api)
397 int i, j, collisions[11], count, hash, mask;
398 const struct value_desc *d;
399 const char *api_names[] = {
401 [API_OPENGL_CORE] = "GL_CORE",
402 [API_OPENGLES] = "GLES",
403 [API_OPENGLES2] = "GLES2",
405 const char *api_name;
407 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
409 mask = Elements(table(api)) - 1;
410 memset(collisions, 0, sizeof collisions);
412 for (i = 0; i < Elements(table(api)); i++) {
416 d = &values[table(api)[i]];
417 hash = (d->pname * prime_factor);
420 if (values[table(api)[hash & mask]].pname == d->pname)
432 printf("number of enums for %s: %d (total %ld)\n",
433 api_name, count, Elements(values));
434 for (i = 0; i < Elements(collisions) - 1; i++)
435 if (collisions[i] > 0)
436 printf(" %d enums with %d %scollisions\n",
437 collisions[i], i, i == 10 ? "or more " : "");
442 * Initialize the enum hash for a given API
444 * This is called from one_time_init() to insert the enum values that
445 * are valid for the API in question into the enum hash table.
447 * \param the current context, for determining the API in question
449 void _mesa_init_get_hash(struct gl_context *ctx)
457 * Handle irregular enums
459 * Some values don't conform to the "well-known type at context
460 * pointer + offset" pattern, so we have this function to catch all
461 * the corner cases. Typically, it's a computed value or a one-off
462 * pointer to a custom struct or something.
464 * In this case we can't return a pointer to the value, so we'll have
465 * to use the temporary variable 'v' declared back in the calling
466 * glGet*v() function to store the result.
468 * \param ctx the current context
469 * \param d the struct value_desc that describes the enum
470 * \param v pointer to the tmp declared in the calling glGet*v() function
473 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
475 struct gl_buffer_object **buffer_obj;
476 struct gl_client_array *array;
480 case GL_MAJOR_VERSION:
481 v->value_int = ctx->Version / 10;
483 case GL_MINOR_VERSION:
484 v->value_int = ctx->Version % 10;
490 case GL_TEXTURE_1D_ARRAY_EXT:
491 case GL_TEXTURE_2D_ARRAY_EXT:
492 case GL_TEXTURE_CUBE_MAP_ARB:
493 case GL_TEXTURE_RECTANGLE_NV:
494 case GL_TEXTURE_EXTERNAL_OES:
495 v->value_bool = _mesa_IsEnabled(d->pname);
498 case GL_LINE_STIPPLE_PATTERN:
499 /* This is the only GLushort, special case it here by promoting
500 * to an int rather than introducing a new type. */
501 v->value_int = ctx->Line.StipplePattern;
504 case GL_CURRENT_RASTER_TEXTURE_COORDS:
505 unit = ctx->Texture.CurrentUnit;
506 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
507 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
508 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
509 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
512 case GL_CURRENT_TEXTURE_COORDS:
513 unit = ctx->Texture.CurrentUnit;
514 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
515 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
516 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
517 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
520 case GL_COLOR_WRITEMASK:
521 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
522 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
523 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
524 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
528 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
532 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
535 case GL_MAP2_GRID_DOMAIN:
536 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
537 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
538 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
539 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
542 case GL_TEXTURE_STACK_DEPTH:
543 unit = ctx->Texture.CurrentUnit;
544 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
546 case GL_TEXTURE_MATRIX:
547 unit = ctx->Texture.CurrentUnit;
548 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
551 case GL_TEXTURE_COORD_ARRAY:
552 case GL_TEXTURE_COORD_ARRAY_SIZE:
553 case GL_TEXTURE_COORD_ARRAY_TYPE:
554 case GL_TEXTURE_COORD_ARRAY_STRIDE:
555 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
556 v->value_int = *(GLuint *) ((char *) array + d->offset);
559 case GL_ACTIVE_TEXTURE_ARB:
560 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
562 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
563 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
566 case GL_MODELVIEW_STACK_DEPTH:
567 case GL_PROJECTION_STACK_DEPTH:
568 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
571 case GL_MAX_TEXTURE_SIZE:
572 case GL_MAX_3D_TEXTURE_SIZE:
573 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
574 p = (GLuint *) ((char *) ctx + d->offset);
575 v->value_int = 1 << (*p - 1);
579 v->value_int_4[0] = ctx->Scissor.X;
580 v->value_int_4[1] = ctx->Scissor.Y;
581 v->value_int_4[2] = ctx->Scissor.Width;
582 v->value_int_4[3] = ctx->Scissor.Height;
587 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
590 if (!ctx->CompileFlag)
592 else if (ctx->ExecuteFlag)
593 v->value_enum = GL_COMPILE_AND_EXECUTE;
595 v->value_enum = GL_COMPILE;
599 v->value_int_4[0] = ctx->Viewport.X;
600 v->value_int_4[1] = ctx->Viewport.Y;
601 v->value_int_4[2] = ctx->Viewport.Width;
602 v->value_int_4[3] = ctx->Viewport.Height;
605 case GL_ACTIVE_STENCIL_FACE_EXT:
606 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
609 case GL_STENCIL_FAIL:
610 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
612 case GL_STENCIL_FUNC:
613 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
615 case GL_STENCIL_PASS_DEPTH_FAIL:
616 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
618 case GL_STENCIL_PASS_DEPTH_PASS:
619 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
622 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
624 case GL_STENCIL_VALUE_MASK:
625 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
627 case GL_STENCIL_WRITEMASK:
628 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
631 case GL_NUM_EXTENSIONS:
632 v->value_int = _mesa_get_extension_count(ctx);
635 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
636 v->value_int = _mesa_get_color_read_type(ctx);
638 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
639 v->value_int = _mesa_get_color_read_format(ctx);
642 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
643 v->value_int = ctx->CurrentStack->Depth + 1;
645 case GL_CURRENT_MATRIX_ARB:
646 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
647 v->value_matrix = ctx->CurrentStack->Top;
650 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
651 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
653 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
655 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
656 ASSERT(v->value_int_n.n <= 100);
659 case GL_MAX_VARYING_FLOATS_ARB:
660 v->value_int = ctx->Const.MaxVarying * 4;
663 /* Various object names */
665 case GL_TEXTURE_BINDING_1D:
666 case GL_TEXTURE_BINDING_2D:
667 case GL_TEXTURE_BINDING_3D:
668 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
669 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
670 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
671 case GL_TEXTURE_BINDING_RECTANGLE_NV:
672 case GL_TEXTURE_BINDING_EXTERNAL_OES:
673 unit = ctx->Texture.CurrentUnit;
675 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
678 /* GL_ARB_vertex_buffer_object */
679 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
680 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
681 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
682 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
683 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
684 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
685 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
686 buffer_obj = (struct gl_buffer_object **)
687 ((char *) ctx->Array.ArrayObj + d->offset);
688 v->value_int = (*buffer_obj)->Name;
690 case GL_ARRAY_BUFFER_BINDING_ARB:
691 v->value_int = ctx->Array.ArrayBufferObj->Name;
693 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
695 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
697 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
698 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
701 /* ARB_copy_buffer */
702 case GL_COPY_READ_BUFFER:
703 v->value_int = ctx->CopyReadBuffer->Name;
705 case GL_COPY_WRITE_BUFFER:
706 v->value_int = ctx->CopyWriteBuffer->Name;
709 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
710 v->value_int = ctx->Pack.BufferObj->Name;
712 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
713 v->value_int = ctx->Unpack.BufferObj->Name;
715 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
716 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
718 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
719 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
721 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
722 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
724 case GL_TRANSFORM_FEEDBACK_BINDING:
725 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
727 case GL_CURRENT_PROGRAM:
729 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
731 case GL_READ_FRAMEBUFFER_BINDING_EXT:
732 v->value_int = ctx->ReadBuffer->Name;
734 case GL_RENDERBUFFER_BINDING_EXT:
736 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
738 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
739 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
743 if(ctx->Color._ClampFragmentColor)
744 COPY_4FV(v->value_float_4, ctx->Fog.Color);
746 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
748 case GL_COLOR_CLEAR_VALUE:
749 if(ctx->Color._ClampFragmentColor) {
750 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
751 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
752 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
753 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
755 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
757 case GL_BLEND_COLOR_EXT:
758 if(ctx->Color._ClampFragmentColor)
759 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
761 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
763 case GL_ALPHA_TEST_REF:
764 if(ctx->Color._ClampFragmentColor)
765 v->value_float = ctx->Color.AlphaRef;
767 v->value_float = ctx->Color.AlphaRefUnclamped;
769 case GL_MAX_VERTEX_UNIFORM_VECTORS:
770 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
773 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
774 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
777 /* GL_ARB_texture_buffer_object */
778 case GL_TEXTURE_BUFFER_ARB:
779 v->value_int = ctx->Texture.BufferObject->Name;
781 case GL_TEXTURE_BINDING_BUFFER_ARB:
782 unit = ctx->Texture.CurrentUnit;
784 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
786 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
788 struct gl_buffer_object *buf =
789 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
790 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
791 v->value_int = buf ? buf->Name : 0;
794 case GL_TEXTURE_BUFFER_FORMAT_ARB:
795 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
796 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
799 /* GL_ARB_sampler_objects */
800 case GL_SAMPLER_BINDING:
802 struct gl_sampler_object *samp =
803 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
804 v->value_int = samp ? samp->Name : 0;
807 /* GL_ARB_uniform_buffer_object */
808 case GL_UNIFORM_BUFFER_BINDING:
809 v->value_int = ctx->UniformBuffer->Name;
811 /* GL_ARB_timer_query */
813 if (ctx->Driver.GetTimestamp) {
814 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
817 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
824 * Check extra constraints on a struct value_desc descriptor
826 * If a struct value_desc has a non-NULL extra pointer, it means that
827 * there are a number of extra constraints to check or actions to
828 * perform. The extras is just an integer array where each integer
829 * encode different constraints or actions.
831 * \param ctx current context
832 * \param func name of calling glGet*v() function for error reporting
833 * \param d the struct value_desc that has the extra constraints
835 * \return GL_FALSE if one of the constraints was not satisfied,
839 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
841 const GLuint version = ctx->Version;
847 for (e = d->extra; *e != EXTRA_END; e++)
849 case EXTRA_VERSION_30:
855 case EXTRA_VERSION_31:
861 case EXTRA_VERSION_32:
867 case EXTRA_NEW_FRAG_CLAMP:
868 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
869 _mesa_update_state(ctx);
872 if (ctx->API == API_OPENGLES2) {
878 if (_mesa_is_desktop_gl(ctx)) {
883 case EXTRA_NEW_BUFFERS:
884 if (ctx->NewState & _NEW_BUFFERS)
885 _mesa_update_state(ctx);
887 case EXTRA_FLUSH_CURRENT:
888 FLUSH_CURRENT(ctx, 0);
890 case EXTRA_VALID_DRAW_BUFFER:
891 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
892 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
893 func, d->pname - GL_DRAW_BUFFER0_ARB);
897 case EXTRA_VALID_TEXTURE_UNIT:
898 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
899 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
900 func, ctx->Texture.CurrentUnit);
904 case EXTRA_VALID_CLIP_DISTANCE:
905 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
906 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
907 func, d->pname - GL_CLIP_DISTANCE0);
912 if (ctx->Const.GLSLVersion >= 130) {
919 default: /* *e is a offset into the extension struct */
921 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
926 if (total > 0 && enabled == 0) {
927 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
928 _mesa_lookup_enum_by_nr(d->pname));
935 static const struct value_desc error_value =
936 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
939 * Find the struct value_desc corresponding to the enum 'pname'.
941 * We hash the enum value to get an index into the 'table' array,
942 * which holds the index in the 'values' array of struct value_desc.
943 * Once we've found the entry, we do the extra checks, if any, then
944 * look up the value and return a pointer to it.
946 * If the value has to be computed (for example, it's the result of a
947 * function call or we need to add 1 to it), we use the tmp 'v' to
950 * \param func name of glGet*v() func for error reporting
951 * \param pname the enum value we're looking up
952 * \param p is were we return the pointer to the value
953 * \param v a tmp union value variable in the calling glGet*v() function
955 * \return the struct value_desc corresponding to the enum or a struct
956 * value_desc of TYPE_INVALID if not found. This lets the calling
957 * glGet*v() function jump right into a switch statement and
958 * handle errors there instead of having to check for NULL.
960 static const struct value_desc *
961 find_value(const char *func, GLenum pname, void **p, union value *v)
963 GET_CURRENT_CONTEXT(ctx);
964 struct gl_texture_unit *unit;
966 const struct value_desc *d;
970 mask = Elements(table(api)) - 1;
971 hash = (pname * prime_factor);
973 int idx = table(api)[hash & mask];
975 /* If the enum isn't valid, the hash walk ends with index 0,
976 * pointing to the first entry of values[] which doesn't hold
978 if (unlikely(idx == 0)) {
979 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
980 _mesa_lookup_enum_by_nr(pname));
985 if (likely(d->pname == pname))
991 if (unlikely(d->extra && !check_extra(ctx, func, d)))
994 switch (d->location) {
996 *p = ((char *) ctx->DrawBuffer + d->offset);
999 *p = ((char *) ctx + d->offset);
1002 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1005 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1006 *p = ((char *) unit + d->offset);
1009 find_custom_value(ctx, d, v);
1017 /* silence warning */
1018 return &error_value;
1021 static const int transpose[] = {
1029 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1031 const struct value_desc *d;
1036 GET_CURRENT_CONTEXT(ctx);
1038 ASSERT_OUTSIDE_BEGIN_END(ctx);
1040 d = find_value("glGetBooleanv", pname, &p, &v);
1045 params[0] = INT_TO_BOOLEAN(d->offset);
1050 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1053 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1056 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1059 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1063 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1067 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1069 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1072 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1075 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1079 for (i = 0; i < v.value_int_n.n; i++)
1080 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1084 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1088 params[0] = ((GLboolean*) p)[0];
1092 m = *(GLmatrix **) p;
1093 for (i = 0; i < 16; i++)
1094 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1098 m = *(GLmatrix **) p;
1099 for (i = 0; i < 16; i++)
1100 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1111 shift = d->type - TYPE_BIT_0;
1112 params[0] = (*(GLbitfield *) p >> shift) & 1;
1118 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1120 const struct value_desc *d;
1125 GET_CURRENT_CONTEXT(ctx);
1127 ASSERT_OUTSIDE_BEGIN_END(ctx);
1129 d = find_value("glGetFloatv", pname, &p, &v);
1134 params[0] = (GLfloat) d->offset;
1139 params[3] = ((GLfloat *) p)[3];
1142 params[2] = ((GLfloat *) p)[2];
1145 params[1] = ((GLfloat *) p)[1];
1148 params[0] = ((GLfloat *) p)[0];
1152 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1156 params[3] = (GLfloat) (((GLint *) p)[3]);
1158 params[2] = (GLfloat) (((GLint *) p)[2]);
1161 params[1] = (GLfloat) (((GLint *) p)[1]);
1164 params[0] = (GLfloat) (((GLint *) p)[0]);
1168 for (i = 0; i < v.value_int_n.n; i++)
1169 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1173 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1177 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1181 m = *(GLmatrix **) p;
1182 for (i = 0; i < 16; i++)
1183 params[i] = m->m[i];
1187 m = *(GLmatrix **) p;
1188 for (i = 0; i < 16; i++)
1189 params[i] = m->m[transpose[i]];
1200 shift = d->type - TYPE_BIT_0;
1201 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1207 _mesa_GetIntegerv(GLenum pname, GLint *params)
1209 const struct value_desc *d;
1214 GET_CURRENT_CONTEXT(ctx);
1216 ASSERT_OUTSIDE_BEGIN_END(ctx);
1218 d = find_value("glGetIntegerv", pname, &p, &v);
1223 params[0] = d->offset;
1227 params[3] = IROUND(((GLfloat *) p)[3]);
1229 params[2] = IROUND(((GLfloat *) p)[2]);
1231 params[1] = IROUND(((GLfloat *) p)[1]);
1233 params[0] = IROUND(((GLfloat *) p)[0]);
1237 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1239 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1241 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1243 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1247 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1251 params[3] = ((GLint *) p)[3];
1253 params[2] = ((GLint *) p)[2];
1256 params[1] = ((GLint *) p)[1];
1259 params[0] = ((GLint *) p)[0];
1263 for (i = 0; i < v.value_int_n.n; i++)
1264 params[i] = v.value_int_n.ints[i];
1268 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1272 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1276 m = *(GLmatrix **) p;
1277 for (i = 0; i < 16; i++)
1278 params[i] = FLOAT_TO_INT(m->m[i]);
1282 m = *(GLmatrix **) p;
1283 for (i = 0; i < 16; i++)
1284 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1295 shift = d->type - TYPE_BIT_0;
1296 params[0] = (*(GLbitfield *) p >> shift) & 1;
1302 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1304 const struct value_desc *d;
1309 GET_CURRENT_CONTEXT(ctx);
1311 ASSERT_OUTSIDE_BEGIN_END(ctx);
1313 d = find_value("glGetInteger64v", pname, &p, &v);
1318 params[0] = d->offset;
1322 params[3] = IROUND64(((GLfloat *) p)[3]);
1324 params[2] = IROUND64(((GLfloat *) p)[2]);
1326 params[1] = IROUND64(((GLfloat *) p)[1]);
1328 params[0] = IROUND64(((GLfloat *) p)[0]);
1332 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1334 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1336 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1338 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1342 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1346 params[3] = ((GLint *) p)[3];
1348 params[2] = ((GLint *) p)[2];
1351 params[1] = ((GLint *) p)[1];
1354 params[0] = ((GLint *) p)[0];
1358 for (i = 0; i < v.value_int_n.n; i++)
1359 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1363 params[0] = ((GLint64 *) p)[0];
1367 params[0] = ((GLboolean*) p)[0];
1371 m = *(GLmatrix **) p;
1372 for (i = 0; i < 16; i++)
1373 params[i] = FLOAT_TO_INT64(m->m[i]);
1377 m = *(GLmatrix **) p;
1378 for (i = 0; i < 16; i++)
1379 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1390 shift = d->type - TYPE_BIT_0;
1391 params[0] = (*(GLbitfield *) p >> shift) & 1;
1397 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1399 const struct value_desc *d;
1404 GET_CURRENT_CONTEXT(ctx);
1406 ASSERT_OUTSIDE_BEGIN_END(ctx);
1408 d = find_value("glGetDoublev", pname, &p, &v);
1413 params[0] = d->offset;
1418 params[3] = ((GLfloat *) p)[3];
1421 params[2] = ((GLfloat *) p)[2];
1424 params[1] = ((GLfloat *) p)[1];
1427 params[0] = ((GLfloat *) p)[0];
1431 params[0] = ((GLdouble *) p)[0];
1435 params[3] = ((GLint *) p)[3];
1437 params[2] = ((GLint *) p)[2];
1440 params[1] = ((GLint *) p)[1];
1443 params[0] = ((GLint *) p)[0];
1447 for (i = 0; i < v.value_int_n.n; i++)
1448 params[i] = v.value_int_n.ints[i];
1452 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1456 params[0] = *(GLboolean*) p;
1460 m = *(GLmatrix **) p;
1461 for (i = 0; i < 16; i++)
1462 params[i] = m->m[i];
1466 m = *(GLmatrix **) p;
1467 for (i = 0; i < 16; i++)
1468 params[i] = m->m[transpose[i]];
1479 shift = d->type - TYPE_BIT_0;
1480 params[0] = (*(GLbitfield *) p >> shift) & 1;
1485 static enum value_type
1486 find_value_indexed(const char *func, GLenum pname, int index, union value *v)
1488 GET_CURRENT_CONTEXT(ctx);
1493 if (index >= ctx->Const.MaxDrawBuffers)
1495 if (!ctx->Extensions.EXT_draw_buffers2)
1497 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1502 case GL_BLEND_SRC_RGB:
1503 if (index >= ctx->Const.MaxDrawBuffers)
1505 if (!ctx->Extensions.ARB_draw_buffers_blend)
1507 v->value_int = ctx->Color.Blend[index].SrcRGB;
1509 case GL_BLEND_SRC_ALPHA:
1510 if (index >= ctx->Const.MaxDrawBuffers)
1512 if (!ctx->Extensions.ARB_draw_buffers_blend)
1514 v->value_int = ctx->Color.Blend[index].SrcA;
1518 case GL_BLEND_DST_RGB:
1519 if (index >= ctx->Const.MaxDrawBuffers)
1521 if (!ctx->Extensions.ARB_draw_buffers_blend)
1523 v->value_int = ctx->Color.Blend[index].DstRGB;
1525 case GL_BLEND_DST_ALPHA:
1526 if (index >= ctx->Const.MaxDrawBuffers)
1528 if (!ctx->Extensions.ARB_draw_buffers_blend)
1530 v->value_int = ctx->Color.Blend[index].DstA;
1532 case GL_BLEND_EQUATION_RGB:
1533 if (index >= ctx->Const.MaxDrawBuffers)
1535 if (!ctx->Extensions.ARB_draw_buffers_blend)
1537 v->value_int = ctx->Color.Blend[index].EquationRGB;
1539 case GL_BLEND_EQUATION_ALPHA:
1540 if (index >= ctx->Const.MaxDrawBuffers)
1542 if (!ctx->Extensions.ARB_draw_buffers_blend)
1544 v->value_int = ctx->Color.Blend[index].EquationA;
1547 case GL_COLOR_WRITEMASK:
1548 if (index >= ctx->Const.MaxDrawBuffers)
1550 if (!ctx->Extensions.EXT_draw_buffers2)
1552 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1553 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1554 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1555 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1558 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1559 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1561 if (!ctx->Extensions.EXT_transform_feedback)
1563 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1566 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1567 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1569 if (!ctx->Extensions.EXT_transform_feedback)
1571 v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
1574 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1575 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1577 if (!ctx->Extensions.EXT_transform_feedback)
1579 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1582 case GL_UNIFORM_BUFFER_BINDING:
1583 if (index >= ctx->Const.MaxUniformBufferBindings)
1585 if (!ctx->Extensions.ARB_uniform_buffer_object)
1587 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1590 case GL_UNIFORM_BUFFER_START:
1591 if (index >= ctx->Const.MaxUniformBufferBindings)
1593 if (!ctx->Extensions.ARB_uniform_buffer_object)
1595 v->value_int = ctx->UniformBufferBindings[index].Offset;
1598 case GL_UNIFORM_BUFFER_SIZE:
1599 if (index >= ctx->Const.MaxUniformBufferBindings)
1601 if (!ctx->Extensions.ARB_uniform_buffer_object)
1603 v->value_int = ctx->UniformBufferBindings[index].Size;
1608 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1609 _mesa_lookup_enum_by_nr(pname));
1610 return TYPE_INVALID;
1612 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1613 _mesa_lookup_enum_by_nr(pname));
1614 return TYPE_INVALID;
1618 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
1621 enum value_type type =
1622 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1626 params[0] = INT_TO_BOOLEAN(v.value_int);
1629 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1630 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1631 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1632 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1635 params[0] = INT64_TO_BOOLEAN(v.value_int);
1638 ; /* nothing - GL error was recorded */
1643 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
1646 enum value_type type =
1647 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1651 params[0] = v.value_int;
1654 params[0] = v.value_int_4[0];
1655 params[1] = v.value_int_4[1];
1656 params[2] = v.value_int_4[2];
1657 params[3] = v.value_int_4[3];
1660 params[0] = INT64_TO_INT(v.value_int);
1663 ; /* nothing - GL error was recorded */
1668 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1671 enum value_type type =
1672 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1676 params[0] = v.value_int;
1679 params[0] = v.value_int_4[0];
1680 params[1] = v.value_int_4[1];
1681 params[2] = v.value_int_4[2];
1682 params[3] = v.value_int_4[3];
1685 params[0] = v.value_int;
1688 ; /* nothing - GL error was recorded */
1694 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1696 const struct value_desc *d;
1702 d = find_value("glGetDoublev", pname, &p, &v);
1707 params[0] = INT_TO_FIXED(d->offset);
1712 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1715 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1718 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1721 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1725 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1729 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1731 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1734 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1737 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1741 for (i = 0; i < v.value_int_n.n; i++)
1742 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1746 params[0] = ((GLint64 *) p)[0];
1750 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1754 m = *(GLmatrix **) p;
1755 for (i = 0; i < 16; i++)
1756 params[i] = FLOAT_TO_FIXED(m->m[i]);
1760 m = *(GLmatrix **) p;
1761 for (i = 0; i < 16; i++)
1762 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1773 shift = d->type - TYPE_BIT_0;
1774 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);