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);
359 extra_NV_primitive_restart[] = {
360 EXT(NV_primitive_restart),
364 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
365 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
366 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
368 static const int extra_gl30_es3[] = {
375 extra_ARB_vertex_program_api_es2[] = {
376 EXT(ARB_vertex_program),
381 /* The ReadBuffer get token is valid under either full GL or under
382 * GLES2 if the NV_read_buffer extension is available. */
384 extra_NV_read_buffer_api_gl[] = {
390 /* This is the big table describing all the enums we accept in
391 * glGet*v(). The table is partitioned into six parts: enums
392 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
393 * between OpenGL and GLES, enums exclusive to GLES, etc for the
394 * remaining combinations. To look up the enums valid in a given API
395 * we will use a hash table specific to that API. These tables are in
396 * turn generated at build time and included through get_hash.h.
397 * The different sections are guarded by #if FEATURE_GL etc to make
398 * sure we only compile in the enums we may need. */
400 #include "get_hash.h"
402 /* All we need now is a way to look up the value struct from the enum.
403 * The code generated by gcc for the old generated big switch
404 * statement is a big, balanced, open coded if/else tree, essentially
405 * an unrolled binary search. It would be natural to sort the new
406 * enum table and use bsearch(), but we will use a read-only hash
407 * table instead. bsearch() has a nice guaranteed worst case
408 * performance, but we're also guaranteed to hit that worst case
409 * (log2(n) iterations) for about half the enums. Instead, using an
410 * open addressing hash table, we can find the enum on the first try
411 * for 80% of the enums, 1 collision for 10% and never more than 5
412 * collisions for any enum (typical numbers). And the code is very
413 * simple, even though it feels a little magic. */
417 print_table_stats(int api)
419 int i, j, collisions[11], count, hash, mask;
420 const struct value_desc *d;
421 const char *api_names[] = {
422 [API_OPENGL_COMPAT] = "GL",
423 [API_OPENGL_CORE] = "GL_CORE",
424 [API_OPENGLES] = "GLES",
425 [API_OPENGLES2] = "GLES2",
427 const char *api_name;
429 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
431 mask = Elements(table(api)) - 1;
432 memset(collisions, 0, sizeof collisions);
434 for (i = 0; i < Elements(table(api)); i++) {
438 d = &values[table(api)[i]];
439 hash = (d->pname * prime_factor);
442 if (values[table(api)[hash & mask]].pname == d->pname)
454 printf("number of enums for %s: %d (total %ld)\n",
455 api_name, count, Elements(values));
456 for (i = 0; i < Elements(collisions) - 1; i++)
457 if (collisions[i] > 0)
458 printf(" %d enums with %d %scollisions\n",
459 collisions[i], i, i == 10 ? "or more " : "");
464 * Initialize the enum hash for a given API
466 * This is called from one_time_init() to insert the enum values that
467 * are valid for the API in question into the enum hash table.
469 * \param the current context, for determining the API in question
471 void _mesa_init_get_hash(struct gl_context *ctx)
479 * Handle irregular enums
481 * Some values don't conform to the "well-known type at context
482 * pointer + offset" pattern, so we have this function to catch all
483 * the corner cases. Typically, it's a computed value or a one-off
484 * pointer to a custom struct or something.
486 * In this case we can't return a pointer to the value, so we'll have
487 * to use the temporary variable 'v' declared back in the calling
488 * glGet*v() function to store the result.
490 * \param ctx the current context
491 * \param d the struct value_desc that describes the enum
492 * \param v pointer to the tmp declared in the calling glGet*v() function
495 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
497 struct gl_buffer_object **buffer_obj;
498 struct gl_client_array *array;
502 case GL_MAJOR_VERSION:
503 v->value_int = ctx->Version / 10;
505 case GL_MINOR_VERSION:
506 v->value_int = ctx->Version % 10;
512 case GL_TEXTURE_1D_ARRAY_EXT:
513 case GL_TEXTURE_2D_ARRAY_EXT:
514 case GL_TEXTURE_CUBE_MAP_ARB:
515 case GL_TEXTURE_RECTANGLE_NV:
516 case GL_TEXTURE_EXTERNAL_OES:
517 v->value_bool = _mesa_IsEnabled(d->pname);
520 case GL_LINE_STIPPLE_PATTERN:
521 /* This is the only GLushort, special case it here by promoting
522 * to an int rather than introducing a new type. */
523 v->value_int = ctx->Line.StipplePattern;
526 case GL_CURRENT_RASTER_TEXTURE_COORDS:
527 unit = ctx->Texture.CurrentUnit;
528 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
529 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
530 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
531 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
534 case GL_CURRENT_TEXTURE_COORDS:
535 unit = ctx->Texture.CurrentUnit;
536 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
537 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
538 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
539 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
542 case GL_COLOR_WRITEMASK:
543 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
544 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
545 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
546 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
550 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
554 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
557 case GL_MAP2_GRID_DOMAIN:
558 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
559 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
560 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
561 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
564 case GL_TEXTURE_STACK_DEPTH:
565 unit = ctx->Texture.CurrentUnit;
566 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
568 case GL_TEXTURE_MATRIX:
569 unit = ctx->Texture.CurrentUnit;
570 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
573 case GL_TEXTURE_COORD_ARRAY:
574 case GL_TEXTURE_COORD_ARRAY_SIZE:
575 case GL_TEXTURE_COORD_ARRAY_TYPE:
576 case GL_TEXTURE_COORD_ARRAY_STRIDE:
577 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
578 v->value_int = *(GLuint *) ((char *) array + d->offset);
581 case GL_ACTIVE_TEXTURE_ARB:
582 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
584 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
585 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
588 case GL_MODELVIEW_STACK_DEPTH:
589 case GL_PROJECTION_STACK_DEPTH:
590 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
593 case GL_MAX_TEXTURE_SIZE:
594 case GL_MAX_3D_TEXTURE_SIZE:
595 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
596 p = (GLuint *) ((char *) ctx + d->offset);
597 v->value_int = 1 << (*p - 1);
601 v->value_int_4[0] = ctx->Scissor.X;
602 v->value_int_4[1] = ctx->Scissor.Y;
603 v->value_int_4[2] = ctx->Scissor.Width;
604 v->value_int_4[3] = ctx->Scissor.Height;
609 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
612 if (!ctx->CompileFlag)
614 else if (ctx->ExecuteFlag)
615 v->value_enum = GL_COMPILE_AND_EXECUTE;
617 v->value_enum = GL_COMPILE;
621 v->value_int_4[0] = ctx->Viewport.X;
622 v->value_int_4[1] = ctx->Viewport.Y;
623 v->value_int_4[2] = ctx->Viewport.Width;
624 v->value_int_4[3] = ctx->Viewport.Height;
627 case GL_ACTIVE_STENCIL_FACE_EXT:
628 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
631 case GL_STENCIL_FAIL:
632 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
634 case GL_STENCIL_FUNC:
635 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
637 case GL_STENCIL_PASS_DEPTH_FAIL:
638 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
640 case GL_STENCIL_PASS_DEPTH_PASS:
641 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
644 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
646 case GL_STENCIL_VALUE_MASK:
647 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
649 case GL_STENCIL_WRITEMASK:
650 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
653 case GL_NUM_EXTENSIONS:
654 v->value_int = _mesa_get_extension_count(ctx);
657 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
658 v->value_int = _mesa_get_color_read_type(ctx);
660 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
661 v->value_int = _mesa_get_color_read_format(ctx);
664 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
665 v->value_int = ctx->CurrentStack->Depth + 1;
667 case GL_CURRENT_MATRIX_ARB:
668 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
669 v->value_matrix = ctx->CurrentStack->Top;
672 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
673 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
675 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
677 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
678 ASSERT(v->value_int_n.n <= 100);
681 case GL_MAX_VARYING_FLOATS_ARB:
682 v->value_int = ctx->Const.MaxVarying * 4;
685 /* Various object names */
687 case GL_TEXTURE_BINDING_1D:
688 case GL_TEXTURE_BINDING_2D:
689 case GL_TEXTURE_BINDING_3D:
690 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
691 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
692 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
693 case GL_TEXTURE_BINDING_RECTANGLE_NV:
694 case GL_TEXTURE_BINDING_EXTERNAL_OES:
695 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
696 unit = ctx->Texture.CurrentUnit;
698 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
701 /* GL_ARB_vertex_buffer_object */
702 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
703 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
704 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
705 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
706 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
707 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
708 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
709 buffer_obj = (struct gl_buffer_object **)
710 ((char *) ctx->Array.ArrayObj + d->offset);
711 v->value_int = (*buffer_obj)->Name;
713 case GL_ARRAY_BUFFER_BINDING_ARB:
714 v->value_int = ctx->Array.ArrayBufferObj->Name;
716 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
718 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
720 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
721 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
724 /* ARB_copy_buffer */
725 case GL_COPY_READ_BUFFER:
726 v->value_int = ctx->CopyReadBuffer->Name;
728 case GL_COPY_WRITE_BUFFER:
729 v->value_int = ctx->CopyWriteBuffer->Name;
732 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
733 v->value_int = ctx->Pack.BufferObj->Name;
735 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
736 v->value_int = ctx->Unpack.BufferObj->Name;
738 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
739 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
741 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
742 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
744 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
745 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
747 case GL_TRANSFORM_FEEDBACK_BINDING:
748 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
750 case GL_CURRENT_PROGRAM:
752 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
754 case GL_READ_FRAMEBUFFER_BINDING_EXT:
755 v->value_int = ctx->ReadBuffer->Name;
757 case GL_RENDERBUFFER_BINDING_EXT:
759 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
761 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
762 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
766 if(ctx->Color._ClampFragmentColor)
767 COPY_4FV(v->value_float_4, ctx->Fog.Color);
769 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
771 case GL_COLOR_CLEAR_VALUE:
772 if(ctx->Color._ClampFragmentColor) {
773 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
774 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
775 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
776 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
778 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
780 case GL_BLEND_COLOR_EXT:
781 if(ctx->Color._ClampFragmentColor)
782 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
784 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
786 case GL_ALPHA_TEST_REF:
787 if(ctx->Color._ClampFragmentColor)
788 v->value_float = ctx->Color.AlphaRef;
790 v->value_float = ctx->Color.AlphaRefUnclamped;
792 case GL_MAX_VERTEX_UNIFORM_VECTORS:
793 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
796 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
797 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
800 /* GL_ARB_texture_buffer_object */
801 case GL_TEXTURE_BUFFER_ARB:
802 v->value_int = ctx->Texture.BufferObject->Name;
804 case GL_TEXTURE_BINDING_BUFFER_ARB:
805 unit = ctx->Texture.CurrentUnit;
807 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
809 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
811 struct gl_buffer_object *buf =
812 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
813 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
814 v->value_int = buf ? buf->Name : 0;
817 case GL_TEXTURE_BUFFER_FORMAT_ARB:
818 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
819 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
822 /* GL_ARB_sampler_objects */
823 case GL_SAMPLER_BINDING:
825 struct gl_sampler_object *samp =
826 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
827 v->value_int = samp ? samp->Name : 0;
830 /* GL_ARB_uniform_buffer_object */
831 case GL_UNIFORM_BUFFER_BINDING:
832 v->value_int = ctx->UniformBuffer->Name;
834 /* GL_ARB_timer_query */
836 if (ctx->Driver.GetTimestamp) {
837 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
840 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
847 * Check extra constraints on a struct value_desc descriptor
849 * If a struct value_desc has a non-NULL extra pointer, it means that
850 * there are a number of extra constraints to check or actions to
851 * perform. The extras is just an integer array where each integer
852 * encode different constraints or actions.
854 * \param ctx current context
855 * \param func name of calling glGet*v() function for error reporting
856 * \param d the struct value_desc that has the extra constraints
858 * \return GL_FALSE if one of the constraints was not satisfied,
862 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
864 const GLuint version = ctx->Version;
870 for (e = d->extra; *e != EXTRA_END; e++)
872 case EXTRA_VERSION_30:
878 case EXTRA_VERSION_31:
884 case EXTRA_VERSION_32:
890 case EXTRA_NEW_FRAG_CLAMP:
891 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
892 _mesa_update_state(ctx);
895 if (ctx->API == API_OPENGLES2) {
901 if (_mesa_is_gles3(ctx)) {
907 if (_mesa_is_desktop_gl(ctx)) {
912 case EXTRA_API_GL_CORE:
913 if (ctx->API == API_OPENGL_CORE) {
918 case EXTRA_NEW_BUFFERS:
919 if (ctx->NewState & _NEW_BUFFERS)
920 _mesa_update_state(ctx);
922 case EXTRA_FLUSH_CURRENT:
923 FLUSH_CURRENT(ctx, 0);
925 case EXTRA_VALID_DRAW_BUFFER:
926 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
927 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
928 func, d->pname - GL_DRAW_BUFFER0_ARB);
932 case EXTRA_VALID_TEXTURE_UNIT:
933 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
934 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
935 func, ctx->Texture.CurrentUnit);
939 case EXTRA_VALID_CLIP_DISTANCE:
940 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
941 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
942 func, d->pname - GL_CLIP_DISTANCE0);
947 if (ctx->Const.GLSLVersion >= 130) {
954 default: /* *e is a offset into the extension struct */
956 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
961 if (total > 0 && enabled == 0) {
962 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
963 _mesa_lookup_enum_by_nr(d->pname));
970 static const struct value_desc error_value =
971 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
974 * Find the struct value_desc corresponding to the enum 'pname'.
976 * We hash the enum value to get an index into the 'table' array,
977 * which holds the index in the 'values' array of struct value_desc.
978 * Once we've found the entry, we do the extra checks, if any, then
979 * look up the value and return a pointer to it.
981 * If the value has to be computed (for example, it's the result of a
982 * function call or we need to add 1 to it), we use the tmp 'v' to
985 * \param func name of glGet*v() func for error reporting
986 * \param pname the enum value we're looking up
987 * \param p is were we return the pointer to the value
988 * \param v a tmp union value variable in the calling glGet*v() function
990 * \return the struct value_desc corresponding to the enum or a struct
991 * value_desc of TYPE_INVALID if not found. This lets the calling
992 * glGet*v() function jump right into a switch statement and
993 * handle errors there instead of having to check for NULL.
995 static const struct value_desc *
996 find_value(const char *func, GLenum pname, void **p, union value *v)
998 GET_CURRENT_CONTEXT(ctx);
999 struct gl_texture_unit *unit;
1001 const struct value_desc *d;
1005 /* We index into the table_set[] list of per-API hash tables using the API's
1006 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1007 * value since it's compatible with GLES2 its entry in table_set[] is at the
1010 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
1011 if (_mesa_is_gles3(ctx)) {
1012 api = API_OPENGL_LAST + 1;
1014 mask = Elements(table(api)) - 1;
1015 hash = (pname * prime_factor);
1017 int idx = table(api)[hash & mask];
1019 /* If the enum isn't valid, the hash walk ends with index 0,
1020 * pointing to the first entry of values[] which doesn't hold
1021 * any valid enum. */
1022 if (unlikely(idx == 0)) {
1023 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1024 _mesa_lookup_enum_by_nr(pname));
1025 return &error_value;
1029 if (likely(d->pname == pname))
1035 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1036 return &error_value;
1038 switch (d->location) {
1040 *p = ((char *) ctx->DrawBuffer + d->offset);
1043 *p = ((char *) ctx + d->offset);
1046 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1049 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1050 *p = ((char *) unit + d->offset);
1053 find_custom_value(ctx, d, v);
1061 /* silence warning */
1062 return &error_value;
1065 static const int transpose[] = {
1073 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1075 const struct value_desc *d;
1081 d = find_value("glGetBooleanv", pname, &p, &v);
1086 params[0] = INT_TO_BOOLEAN(d->offset);
1091 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1094 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1097 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1100 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1104 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1108 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1110 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1113 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1116 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1120 for (i = 0; i < v.value_int_n.n; i++)
1121 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1125 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1129 params[0] = ((GLboolean*) p)[0];
1133 m = *(GLmatrix **) p;
1134 for (i = 0; i < 16; i++)
1135 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1139 m = *(GLmatrix **) p;
1140 for (i = 0; i < 16; i++)
1141 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1152 shift = d->type - TYPE_BIT_0;
1153 params[0] = (*(GLbitfield *) p >> shift) & 1;
1159 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1161 const struct value_desc *d;
1167 d = find_value("glGetFloatv", pname, &p, &v);
1172 params[0] = (GLfloat) d->offset;
1177 params[3] = ((GLfloat *) p)[3];
1180 params[2] = ((GLfloat *) p)[2];
1183 params[1] = ((GLfloat *) p)[1];
1186 params[0] = ((GLfloat *) p)[0];
1190 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1194 params[3] = (GLfloat) (((GLint *) p)[3]);
1196 params[2] = (GLfloat) (((GLint *) p)[2]);
1199 params[1] = (GLfloat) (((GLint *) p)[1]);
1202 params[0] = (GLfloat) (((GLint *) p)[0]);
1206 for (i = 0; i < v.value_int_n.n; i++)
1207 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1211 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1215 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1219 m = *(GLmatrix **) p;
1220 for (i = 0; i < 16; i++)
1221 params[i] = m->m[i];
1225 m = *(GLmatrix **) p;
1226 for (i = 0; i < 16; i++)
1227 params[i] = m->m[transpose[i]];
1238 shift = d->type - TYPE_BIT_0;
1239 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1245 _mesa_GetIntegerv(GLenum pname, GLint *params)
1247 const struct value_desc *d;
1253 d = find_value("glGetIntegerv", pname, &p, &v);
1258 params[0] = d->offset;
1262 params[3] = IROUND(((GLfloat *) p)[3]);
1264 params[2] = IROUND(((GLfloat *) p)[2]);
1266 params[1] = IROUND(((GLfloat *) p)[1]);
1268 params[0] = IROUND(((GLfloat *) p)[0]);
1272 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1274 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1276 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1278 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1282 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1286 params[3] = ((GLint *) p)[3];
1288 params[2] = ((GLint *) p)[2];
1291 params[1] = ((GLint *) p)[1];
1294 params[0] = ((GLint *) p)[0];
1298 for (i = 0; i < v.value_int_n.n; i++)
1299 params[i] = v.value_int_n.ints[i];
1303 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1307 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1311 m = *(GLmatrix **) p;
1312 for (i = 0; i < 16; i++)
1313 params[i] = FLOAT_TO_INT(m->m[i]);
1317 m = *(GLmatrix **) p;
1318 for (i = 0; i < 16; i++)
1319 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1330 shift = d->type - TYPE_BIT_0;
1331 params[0] = (*(GLbitfield *) p >> shift) & 1;
1337 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1339 const struct value_desc *d;
1345 d = find_value("glGetInteger64v", pname, &p, &v);
1350 params[0] = d->offset;
1354 params[3] = IROUND64(((GLfloat *) p)[3]);
1356 params[2] = IROUND64(((GLfloat *) p)[2]);
1358 params[1] = IROUND64(((GLfloat *) p)[1]);
1360 params[0] = IROUND64(((GLfloat *) p)[0]);
1364 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1366 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1368 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1370 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1374 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1378 params[3] = ((GLint *) p)[3];
1380 params[2] = ((GLint *) p)[2];
1383 params[1] = ((GLint *) p)[1];
1386 params[0] = ((GLint *) p)[0];
1390 for (i = 0; i < v.value_int_n.n; i++)
1391 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1395 params[0] = ((GLint64 *) p)[0];
1399 params[0] = ((GLboolean*) p)[0];
1403 m = *(GLmatrix **) p;
1404 for (i = 0; i < 16; i++)
1405 params[i] = FLOAT_TO_INT64(m->m[i]);
1409 m = *(GLmatrix **) p;
1410 for (i = 0; i < 16; i++)
1411 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1422 shift = d->type - TYPE_BIT_0;
1423 params[0] = (*(GLbitfield *) p >> shift) & 1;
1429 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1431 const struct value_desc *d;
1437 d = find_value("glGetDoublev", pname, &p, &v);
1442 params[0] = d->offset;
1447 params[3] = ((GLfloat *) p)[3];
1450 params[2] = ((GLfloat *) p)[2];
1453 params[1] = ((GLfloat *) p)[1];
1456 params[0] = ((GLfloat *) p)[0];
1460 params[0] = ((GLdouble *) p)[0];
1464 params[3] = ((GLint *) p)[3];
1466 params[2] = ((GLint *) p)[2];
1469 params[1] = ((GLint *) p)[1];
1472 params[0] = ((GLint *) p)[0];
1476 for (i = 0; i < v.value_int_n.n; i++)
1477 params[i] = v.value_int_n.ints[i];
1481 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1485 params[0] = *(GLboolean*) p;
1489 m = *(GLmatrix **) p;
1490 for (i = 0; i < 16; i++)
1491 params[i] = m->m[i];
1495 m = *(GLmatrix **) p;
1496 for (i = 0; i < 16; i++)
1497 params[i] = m->m[transpose[i]];
1508 shift = d->type - TYPE_BIT_0;
1509 params[0] = (*(GLbitfield *) p >> shift) & 1;
1514 static enum value_type
1515 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1517 GET_CURRENT_CONTEXT(ctx);
1522 if (index >= ctx->Const.MaxDrawBuffers)
1524 if (!ctx->Extensions.EXT_draw_buffers2)
1526 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1531 case GL_BLEND_SRC_RGB:
1532 if (index >= ctx->Const.MaxDrawBuffers)
1534 if (!ctx->Extensions.ARB_draw_buffers_blend)
1536 v->value_int = ctx->Color.Blend[index].SrcRGB;
1538 case GL_BLEND_SRC_ALPHA:
1539 if (index >= ctx->Const.MaxDrawBuffers)
1541 if (!ctx->Extensions.ARB_draw_buffers_blend)
1543 v->value_int = ctx->Color.Blend[index].SrcA;
1547 case GL_BLEND_DST_RGB:
1548 if (index >= ctx->Const.MaxDrawBuffers)
1550 if (!ctx->Extensions.ARB_draw_buffers_blend)
1552 v->value_int = ctx->Color.Blend[index].DstRGB;
1554 case GL_BLEND_DST_ALPHA:
1555 if (index >= ctx->Const.MaxDrawBuffers)
1557 if (!ctx->Extensions.ARB_draw_buffers_blend)
1559 v->value_int = ctx->Color.Blend[index].DstA;
1561 case GL_BLEND_EQUATION_RGB:
1562 if (index >= ctx->Const.MaxDrawBuffers)
1564 if (!ctx->Extensions.ARB_draw_buffers_blend)
1566 v->value_int = ctx->Color.Blend[index].EquationRGB;
1568 case GL_BLEND_EQUATION_ALPHA:
1569 if (index >= ctx->Const.MaxDrawBuffers)
1571 if (!ctx->Extensions.ARB_draw_buffers_blend)
1573 v->value_int = ctx->Color.Blend[index].EquationA;
1576 case GL_COLOR_WRITEMASK:
1577 if (index >= ctx->Const.MaxDrawBuffers)
1579 if (!ctx->Extensions.EXT_draw_buffers2)
1581 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1582 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1583 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1584 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1587 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1588 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1590 if (!ctx->Extensions.EXT_transform_feedback)
1592 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1595 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1596 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1598 if (!ctx->Extensions.EXT_transform_feedback)
1601 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1604 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1605 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1607 if (!ctx->Extensions.EXT_transform_feedback)
1609 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1612 case GL_UNIFORM_BUFFER_BINDING:
1613 if (index >= ctx->Const.MaxUniformBufferBindings)
1615 if (!ctx->Extensions.ARB_uniform_buffer_object)
1617 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1620 case GL_UNIFORM_BUFFER_START:
1621 if (index >= ctx->Const.MaxUniformBufferBindings)
1623 if (!ctx->Extensions.ARB_uniform_buffer_object)
1625 v->value_int = ctx->UniformBufferBindings[index].Offset;
1628 case GL_UNIFORM_BUFFER_SIZE:
1629 if (index >= ctx->Const.MaxUniformBufferBindings)
1631 if (!ctx->Extensions.ARB_uniform_buffer_object)
1633 v->value_int = ctx->UniformBufferBindings[index].Size;
1638 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1639 _mesa_lookup_enum_by_nr(pname));
1640 return TYPE_INVALID;
1642 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1643 _mesa_lookup_enum_by_nr(pname));
1644 return TYPE_INVALID;
1648 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1651 enum value_type type =
1652 find_value_indexed("glGetBooleani_v", pname, index, &v);
1656 params[0] = INT_TO_BOOLEAN(v.value_int);
1659 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1660 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1661 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1662 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1665 params[0] = INT64_TO_BOOLEAN(v.value_int);
1668 ; /* nothing - GL error was recorded */
1673 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1676 enum value_type type =
1677 find_value_indexed("glGetIntegeri_v", pname, index, &v);
1681 params[0] = v.value_int;
1684 params[0] = v.value_int_4[0];
1685 params[1] = v.value_int_4[1];
1686 params[2] = v.value_int_4[2];
1687 params[3] = v.value_int_4[3];
1690 params[0] = INT64_TO_INT(v.value_int);
1693 ; /* nothing - GL error was recorded */
1698 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
1701 enum value_type type =
1702 find_value_indexed("glGetInteger64i_v", pname, index, &v);
1706 params[0] = v.value_int;
1709 params[0] = v.value_int_4[0];
1710 params[1] = v.value_int_4[1];
1711 params[2] = v.value_int_4[2];
1712 params[3] = v.value_int_4[3];
1715 params[0] = v.value_int;
1718 ; /* nothing - GL error was recorded */
1723 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1725 const struct value_desc *d;
1731 d = find_value("glGetDoublev", pname, &p, &v);
1736 params[0] = INT_TO_FIXED(d->offset);
1741 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1744 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1747 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1750 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1754 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1758 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1760 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1763 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1766 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1770 for (i = 0; i < v.value_int_n.n; i++)
1771 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1775 params[0] = ((GLint64 *) p)[0];
1779 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1783 m = *(GLmatrix **) p;
1784 for (i = 0; i < 16; i++)
1785 params[i] = FLOAT_TO_FIXED(m->m[i]);
1789 m = *(GLmatrix **) p;
1790 for (i = 0; i < 16; i++)
1791 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1802 shift = d->type - TYPE_BIT_0;
1803 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);