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_uniform_buffer_object_and_geometry_shader[] = {
295 EXT(ARB_uniform_buffer_object),
296 EXT(ARB_geometry_shader4),
301 EXTRA_EXT(ARB_ES2_compatibility);
302 EXTRA_EXT(ARB_texture_cube_map);
303 EXTRA_EXT(MESA_texture_array);
304 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
305 EXTRA_EXT(EXT_secondary_color);
306 EXTRA_EXT(EXT_fog_coord);
307 EXTRA_EXT(NV_fog_distance);
308 EXTRA_EXT(EXT_texture_filter_anisotropic);
309 EXTRA_EXT(NV_point_sprite);
310 EXTRA_EXT(NV_texture_rectangle);
311 EXTRA_EXT(EXT_stencil_two_side);
312 EXTRA_EXT(EXT_depth_bounds_test);
313 EXTRA_EXT(ARB_depth_clamp);
314 EXTRA_EXT(ATI_fragment_shader);
315 EXTRA_EXT(EXT_framebuffer_blit);
316 EXTRA_EXT(ARB_shader_objects);
317 EXTRA_EXT(EXT_provoking_vertex);
318 EXTRA_EXT(ARB_fragment_shader);
319 EXTRA_EXT(ARB_fragment_program);
320 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
321 EXTRA_EXT(EXT_framebuffer_object);
322 EXTRA_EXT(ARB_seamless_cube_map);
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(OES_EGL_image_external);
336 EXTRA_EXT(ARB_blend_func_extended);
337 EXTRA_EXT(ARB_uniform_buffer_object);
338 EXTRA_EXT(ARB_timer_query);
339 EXTRA_EXT(ARB_map_buffer_alignment);
340 EXTRA_EXT(ARB_texture_cube_map_array);
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[] = {
400 [API_OPENGL_COMPAT] = "GL",
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 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
674 unit = ctx->Texture.CurrentUnit;
676 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
679 /* GL_ARB_vertex_buffer_object */
680 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
681 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
682 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
683 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
684 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
685 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
686 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
687 buffer_obj = (struct gl_buffer_object **)
688 ((char *) ctx->Array.ArrayObj + d->offset);
689 v->value_int = (*buffer_obj)->Name;
691 case GL_ARRAY_BUFFER_BINDING_ARB:
692 v->value_int = ctx->Array.ArrayBufferObj->Name;
694 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
696 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
698 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
699 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
702 /* ARB_copy_buffer */
703 case GL_COPY_READ_BUFFER:
704 v->value_int = ctx->CopyReadBuffer->Name;
706 case GL_COPY_WRITE_BUFFER:
707 v->value_int = ctx->CopyWriteBuffer->Name;
710 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
711 v->value_int = ctx->Pack.BufferObj->Name;
713 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
714 v->value_int = ctx->Unpack.BufferObj->Name;
716 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
717 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
719 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
720 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
722 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
723 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
725 case GL_TRANSFORM_FEEDBACK_BINDING:
726 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
728 case GL_CURRENT_PROGRAM:
730 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
732 case GL_READ_FRAMEBUFFER_BINDING_EXT:
733 v->value_int = ctx->ReadBuffer->Name;
735 case GL_RENDERBUFFER_BINDING_EXT:
737 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
739 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
740 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
744 if(ctx->Color._ClampFragmentColor)
745 COPY_4FV(v->value_float_4, ctx->Fog.Color);
747 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
749 case GL_COLOR_CLEAR_VALUE:
750 if(ctx->Color._ClampFragmentColor) {
751 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
752 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
753 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
754 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
756 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
758 case GL_BLEND_COLOR_EXT:
759 if(ctx->Color._ClampFragmentColor)
760 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
762 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
764 case GL_ALPHA_TEST_REF:
765 if(ctx->Color._ClampFragmentColor)
766 v->value_float = ctx->Color.AlphaRef;
768 v->value_float = ctx->Color.AlphaRefUnclamped;
770 case GL_MAX_VERTEX_UNIFORM_VECTORS:
771 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
774 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
775 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
778 /* GL_ARB_texture_buffer_object */
779 case GL_TEXTURE_BUFFER_ARB:
780 v->value_int = ctx->Texture.BufferObject->Name;
782 case GL_TEXTURE_BINDING_BUFFER_ARB:
783 unit = ctx->Texture.CurrentUnit;
785 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
787 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
789 struct gl_buffer_object *buf =
790 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
791 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
792 v->value_int = buf ? buf->Name : 0;
795 case GL_TEXTURE_BUFFER_FORMAT_ARB:
796 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
797 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
800 /* GL_ARB_sampler_objects */
801 case GL_SAMPLER_BINDING:
803 struct gl_sampler_object *samp =
804 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
805 v->value_int = samp ? samp->Name : 0;
808 /* GL_ARB_uniform_buffer_object */
809 case GL_UNIFORM_BUFFER_BINDING:
810 v->value_int = ctx->UniformBuffer->Name;
812 /* GL_ARB_timer_query */
814 if (ctx->Driver.GetTimestamp) {
815 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
818 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
825 * Check extra constraints on a struct value_desc descriptor
827 * If a struct value_desc has a non-NULL extra pointer, it means that
828 * there are a number of extra constraints to check or actions to
829 * perform. The extras is just an integer array where each integer
830 * encode different constraints or actions.
832 * \param ctx current context
833 * \param func name of calling glGet*v() function for error reporting
834 * \param d the struct value_desc that has the extra constraints
836 * \return GL_FALSE if one of the constraints was not satisfied,
840 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
842 const GLuint version = ctx->Version;
848 for (e = d->extra; *e != EXTRA_END; e++)
850 case EXTRA_VERSION_30:
856 case EXTRA_VERSION_31:
862 case EXTRA_VERSION_32:
868 case EXTRA_NEW_FRAG_CLAMP:
869 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
870 _mesa_update_state(ctx);
873 if (ctx->API == API_OPENGLES2) {
879 if (_mesa_is_gles3(ctx)) {
885 if (_mesa_is_desktop_gl(ctx)) {
890 case EXTRA_API_GL_CORE:
891 if (ctx->API == API_OPENGL_CORE) {
896 case EXTRA_NEW_BUFFERS:
897 if (ctx->NewState & _NEW_BUFFERS)
898 _mesa_update_state(ctx);
900 case EXTRA_FLUSH_CURRENT:
901 FLUSH_CURRENT(ctx, 0);
903 case EXTRA_VALID_DRAW_BUFFER:
904 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
905 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
906 func, d->pname - GL_DRAW_BUFFER0_ARB);
910 case EXTRA_VALID_TEXTURE_UNIT:
911 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
912 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
913 func, ctx->Texture.CurrentUnit);
917 case EXTRA_VALID_CLIP_DISTANCE:
918 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
919 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
920 func, d->pname - GL_CLIP_DISTANCE0);
925 if (ctx->Const.GLSLVersion >= 130) {
932 default: /* *e is a offset into the extension struct */
934 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
939 if (total > 0 && enabled == 0) {
940 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
941 _mesa_lookup_enum_by_nr(d->pname));
948 static const struct value_desc error_value =
949 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
952 * Find the struct value_desc corresponding to the enum 'pname'.
954 * We hash the enum value to get an index into the 'table' array,
955 * which holds the index in the 'values' array of struct value_desc.
956 * Once we've found the entry, we do the extra checks, if any, then
957 * look up the value and return a pointer to it.
959 * If the value has to be computed (for example, it's the result of a
960 * function call or we need to add 1 to it), we use the tmp 'v' to
963 * \param func name of glGet*v() func for error reporting
964 * \param pname the enum value we're looking up
965 * \param p is were we return the pointer to the value
966 * \param v a tmp union value variable in the calling glGet*v() function
968 * \return the struct value_desc corresponding to the enum or a struct
969 * value_desc of TYPE_INVALID if not found. This lets the calling
970 * glGet*v() function jump right into a switch statement and
971 * handle errors there instead of having to check for NULL.
973 static const struct value_desc *
974 find_value(const char *func, GLenum pname, void **p, union value *v)
976 GET_CURRENT_CONTEXT(ctx);
977 struct gl_texture_unit *unit;
979 const struct value_desc *d;
983 /* We index into the table_set[] list of per-API hash tables using the API's
984 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
985 * value since it's compatible with GLES2 its entry in table_set[] is at the
988 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
989 if (_mesa_is_gles3(ctx)) {
990 api = API_OPENGL_LAST + 1;
992 mask = Elements(table(api)) - 1;
993 hash = (pname * prime_factor);
995 int idx = table(api)[hash & mask];
997 /* If the enum isn't valid, the hash walk ends with index 0,
998 * pointing to the first entry of values[] which doesn't hold
1000 if (unlikely(idx == 0)) {
1001 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1002 _mesa_lookup_enum_by_nr(pname));
1003 return &error_value;
1007 if (likely(d->pname == pname))
1013 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1014 return &error_value;
1016 switch (d->location) {
1018 *p = ((char *) ctx->DrawBuffer + d->offset);
1021 *p = ((char *) ctx + d->offset);
1024 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1027 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1028 *p = ((char *) unit + d->offset);
1031 find_custom_value(ctx, d, v);
1039 /* silence warning */
1040 return &error_value;
1043 static const int transpose[] = {
1051 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1053 const struct value_desc *d;
1058 GET_CURRENT_CONTEXT(ctx);
1060 ASSERT_OUTSIDE_BEGIN_END(ctx);
1062 d = find_value("glGetBooleanv", pname, &p, &v);
1067 params[0] = INT_TO_BOOLEAN(d->offset);
1072 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1075 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1078 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1081 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1085 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1089 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1091 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1094 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1097 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1101 for (i = 0; i < v.value_int_n.n; i++)
1102 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1106 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1110 params[0] = ((GLboolean*) p)[0];
1114 m = *(GLmatrix **) p;
1115 for (i = 0; i < 16; i++)
1116 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1120 m = *(GLmatrix **) p;
1121 for (i = 0; i < 16; i++)
1122 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1133 shift = d->type - TYPE_BIT_0;
1134 params[0] = (*(GLbitfield *) p >> shift) & 1;
1140 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1142 const struct value_desc *d;
1147 GET_CURRENT_CONTEXT(ctx);
1149 ASSERT_OUTSIDE_BEGIN_END(ctx);
1151 d = find_value("glGetFloatv", pname, &p, &v);
1156 params[0] = (GLfloat) d->offset;
1161 params[3] = ((GLfloat *) p)[3];
1164 params[2] = ((GLfloat *) p)[2];
1167 params[1] = ((GLfloat *) p)[1];
1170 params[0] = ((GLfloat *) p)[0];
1174 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1178 params[3] = (GLfloat) (((GLint *) p)[3]);
1180 params[2] = (GLfloat) (((GLint *) p)[2]);
1183 params[1] = (GLfloat) (((GLint *) p)[1]);
1186 params[0] = (GLfloat) (((GLint *) p)[0]);
1190 for (i = 0; i < v.value_int_n.n; i++)
1191 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1195 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1199 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1203 m = *(GLmatrix **) p;
1204 for (i = 0; i < 16; i++)
1205 params[i] = m->m[i];
1209 m = *(GLmatrix **) p;
1210 for (i = 0; i < 16; i++)
1211 params[i] = m->m[transpose[i]];
1222 shift = d->type - TYPE_BIT_0;
1223 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1229 _mesa_GetIntegerv(GLenum pname, GLint *params)
1231 const struct value_desc *d;
1236 GET_CURRENT_CONTEXT(ctx);
1238 ASSERT_OUTSIDE_BEGIN_END(ctx);
1240 d = find_value("glGetIntegerv", pname, &p, &v);
1245 params[0] = d->offset;
1249 params[3] = IROUND(((GLfloat *) p)[3]);
1251 params[2] = IROUND(((GLfloat *) p)[2]);
1253 params[1] = IROUND(((GLfloat *) p)[1]);
1255 params[0] = IROUND(((GLfloat *) p)[0]);
1259 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1261 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1263 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1265 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1269 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1273 params[3] = ((GLint *) p)[3];
1275 params[2] = ((GLint *) p)[2];
1278 params[1] = ((GLint *) p)[1];
1281 params[0] = ((GLint *) p)[0];
1285 for (i = 0; i < v.value_int_n.n; i++)
1286 params[i] = v.value_int_n.ints[i];
1290 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1294 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1298 m = *(GLmatrix **) p;
1299 for (i = 0; i < 16; i++)
1300 params[i] = FLOAT_TO_INT(m->m[i]);
1304 m = *(GLmatrix **) p;
1305 for (i = 0; i < 16; i++)
1306 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1317 shift = d->type - TYPE_BIT_0;
1318 params[0] = (*(GLbitfield *) p >> shift) & 1;
1324 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1326 const struct value_desc *d;
1331 GET_CURRENT_CONTEXT(ctx);
1333 ASSERT_OUTSIDE_BEGIN_END(ctx);
1335 d = find_value("glGetInteger64v", pname, &p, &v);
1340 params[0] = d->offset;
1344 params[3] = IROUND64(((GLfloat *) p)[3]);
1346 params[2] = IROUND64(((GLfloat *) p)[2]);
1348 params[1] = IROUND64(((GLfloat *) p)[1]);
1350 params[0] = IROUND64(((GLfloat *) p)[0]);
1354 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1356 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1358 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1360 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1364 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1368 params[3] = ((GLint *) p)[3];
1370 params[2] = ((GLint *) p)[2];
1373 params[1] = ((GLint *) p)[1];
1376 params[0] = ((GLint *) p)[0];
1380 for (i = 0; i < v.value_int_n.n; i++)
1381 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1385 params[0] = ((GLint64 *) p)[0];
1389 params[0] = ((GLboolean*) p)[0];
1393 m = *(GLmatrix **) p;
1394 for (i = 0; i < 16; i++)
1395 params[i] = FLOAT_TO_INT64(m->m[i]);
1399 m = *(GLmatrix **) p;
1400 for (i = 0; i < 16; i++)
1401 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1412 shift = d->type - TYPE_BIT_0;
1413 params[0] = (*(GLbitfield *) p >> shift) & 1;
1419 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1421 const struct value_desc *d;
1426 GET_CURRENT_CONTEXT(ctx);
1428 ASSERT_OUTSIDE_BEGIN_END(ctx);
1430 d = find_value("glGetDoublev", pname, &p, &v);
1435 params[0] = d->offset;
1440 params[3] = ((GLfloat *) p)[3];
1443 params[2] = ((GLfloat *) p)[2];
1446 params[1] = ((GLfloat *) p)[1];
1449 params[0] = ((GLfloat *) p)[0];
1453 params[0] = ((GLdouble *) p)[0];
1457 params[3] = ((GLint *) p)[3];
1459 params[2] = ((GLint *) p)[2];
1462 params[1] = ((GLint *) p)[1];
1465 params[0] = ((GLint *) p)[0];
1469 for (i = 0; i < v.value_int_n.n; i++)
1470 params[i] = v.value_int_n.ints[i];
1474 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1478 params[0] = *(GLboolean*) p;
1482 m = *(GLmatrix **) p;
1483 for (i = 0; i < 16; i++)
1484 params[i] = m->m[i];
1488 m = *(GLmatrix **) p;
1489 for (i = 0; i < 16; i++)
1490 params[i] = m->m[transpose[i]];
1501 shift = d->type - TYPE_BIT_0;
1502 params[0] = (*(GLbitfield *) p >> shift) & 1;
1507 static enum value_type
1508 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1510 GET_CURRENT_CONTEXT(ctx);
1515 if (index >= ctx->Const.MaxDrawBuffers)
1517 if (!ctx->Extensions.EXT_draw_buffers2)
1519 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1524 case GL_BLEND_SRC_RGB:
1525 if (index >= ctx->Const.MaxDrawBuffers)
1527 if (!ctx->Extensions.ARB_draw_buffers_blend)
1529 v->value_int = ctx->Color.Blend[index].SrcRGB;
1531 case GL_BLEND_SRC_ALPHA:
1532 if (index >= ctx->Const.MaxDrawBuffers)
1534 if (!ctx->Extensions.ARB_draw_buffers_blend)
1536 v->value_int = ctx->Color.Blend[index].SrcA;
1540 case GL_BLEND_DST_RGB:
1541 if (index >= ctx->Const.MaxDrawBuffers)
1543 if (!ctx->Extensions.ARB_draw_buffers_blend)
1545 v->value_int = ctx->Color.Blend[index].DstRGB;
1547 case GL_BLEND_DST_ALPHA:
1548 if (index >= ctx->Const.MaxDrawBuffers)
1550 if (!ctx->Extensions.ARB_draw_buffers_blend)
1552 v->value_int = ctx->Color.Blend[index].DstA;
1554 case GL_BLEND_EQUATION_RGB:
1555 if (index >= ctx->Const.MaxDrawBuffers)
1557 if (!ctx->Extensions.ARB_draw_buffers_blend)
1559 v->value_int = ctx->Color.Blend[index].EquationRGB;
1561 case GL_BLEND_EQUATION_ALPHA:
1562 if (index >= ctx->Const.MaxDrawBuffers)
1564 if (!ctx->Extensions.ARB_draw_buffers_blend)
1566 v->value_int = ctx->Color.Blend[index].EquationA;
1569 case GL_COLOR_WRITEMASK:
1570 if (index >= ctx->Const.MaxDrawBuffers)
1572 if (!ctx->Extensions.EXT_draw_buffers2)
1574 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1575 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1576 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1577 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1580 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1581 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1583 if (!ctx->Extensions.EXT_transform_feedback)
1585 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1588 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1589 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1591 if (!ctx->Extensions.EXT_transform_feedback)
1594 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1597 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1598 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1600 if (!ctx->Extensions.EXT_transform_feedback)
1602 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1605 case GL_UNIFORM_BUFFER_BINDING:
1606 if (index >= ctx->Const.MaxUniformBufferBindings)
1608 if (!ctx->Extensions.ARB_uniform_buffer_object)
1610 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1613 case GL_UNIFORM_BUFFER_START:
1614 if (index >= ctx->Const.MaxUniformBufferBindings)
1616 if (!ctx->Extensions.ARB_uniform_buffer_object)
1618 v->value_int = ctx->UniformBufferBindings[index].Offset;
1621 case GL_UNIFORM_BUFFER_SIZE:
1622 if (index >= ctx->Const.MaxUniformBufferBindings)
1624 if (!ctx->Extensions.ARB_uniform_buffer_object)
1626 v->value_int = ctx->UniformBufferBindings[index].Size;
1631 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1632 _mesa_lookup_enum_by_nr(pname));
1633 return TYPE_INVALID;
1635 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1636 _mesa_lookup_enum_by_nr(pname));
1637 return TYPE_INVALID;
1641 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1644 enum value_type type =
1645 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1649 params[0] = INT_TO_BOOLEAN(v.value_int);
1652 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1653 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1654 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1655 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1658 params[0] = INT64_TO_BOOLEAN(v.value_int);
1661 ; /* nothing - GL error was recorded */
1666 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1669 enum value_type type =
1670 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1674 params[0] = v.value_int;
1677 params[0] = v.value_int_4[0];
1678 params[1] = v.value_int_4[1];
1679 params[2] = v.value_int_4[2];
1680 params[3] = v.value_int_4[3];
1683 params[0] = INT64_TO_INT(v.value_int);
1686 ; /* nothing - GL error was recorded */
1691 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1694 enum value_type type =
1695 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1699 params[0] = v.value_int;
1702 params[0] = v.value_int_4[0];
1703 params[1] = v.value_int_4[1];
1704 params[2] = v.value_int_4[2];
1705 params[3] = v.value_int_4[3];
1708 params[0] = v.value_int;
1711 ; /* nothing - GL error was recorded */
1716 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1718 const struct value_desc *d;
1724 d = find_value("glGetDoublev", pname, &p, &v);
1729 params[0] = INT_TO_FIXED(d->offset);
1734 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1737 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1740 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1743 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1747 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1751 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1753 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1756 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1759 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1763 for (i = 0; i < v.value_int_n.n; i++)
1764 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1768 params[0] = ((GLint64 *) p)[0];
1772 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1776 m = *(GLmatrix **) p;
1777 for (i = 0; i < 16; i++)
1778 params[i] = FLOAT_TO_FIXED(m->m[i]);
1782 m = *(GLmatrix **) p;
1783 for (i = 0; i < 16; i++)
1784 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1795 shift = d->type - TYPE_BIT_0;
1796 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);