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),
307 EXTRA_EXT(ARB_ES2_compatibility);
308 EXTRA_EXT(ARB_texture_cube_map);
309 EXTRA_EXT(MESA_texture_array);
310 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
311 EXTRA_EXT(EXT_secondary_color);
312 EXTRA_EXT(EXT_fog_coord);
313 EXTRA_EXT(NV_fog_distance);
314 EXTRA_EXT(EXT_texture_filter_anisotropic);
315 EXTRA_EXT(NV_point_sprite);
316 EXTRA_EXT(NV_texture_rectangle);
317 EXTRA_EXT(EXT_stencil_two_side);
318 EXTRA_EXT(EXT_depth_bounds_test);
319 EXTRA_EXT(ARB_depth_clamp);
320 EXTRA_EXT(ATI_fragment_shader);
321 EXTRA_EXT(EXT_framebuffer_blit);
322 EXTRA_EXT(ARB_shader_objects);
323 EXTRA_EXT(EXT_provoking_vertex);
324 EXTRA_EXT(ARB_fragment_shader);
325 EXTRA_EXT(ARB_fragment_program);
326 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
327 EXTRA_EXT(EXT_framebuffer_object);
328 EXTRA_EXT(ARB_seamless_cube_map);
330 EXTRA_EXT(ARB_vertex_shader);
331 EXTRA_EXT(EXT_transform_feedback);
332 EXTRA_EXT(ARB_transform_feedback3);
333 EXTRA_EXT(EXT_pixel_buffer_object);
334 EXTRA_EXT(ARB_vertex_program);
335 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
336 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
337 EXTRA_EXT(ARB_geometry_shader4);
338 EXTRA_EXT(ARB_color_buffer_float);
339 EXTRA_EXT(EXT_framebuffer_sRGB);
340 EXTRA_EXT(OES_EGL_image_external);
341 EXTRA_EXT(ARB_blend_func_extended);
342 EXTRA_EXT(ARB_uniform_buffer_object);
343 EXTRA_EXT(ARB_timer_query);
344 EXTRA_EXT(ARB_map_buffer_alignment);
345 EXTRA_EXT(ARB_texture_cube_map_array);
348 extra_NV_primitive_restart[] = {
349 EXT(NV_primitive_restart),
353 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
354 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
355 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
358 extra_ARB_vertex_program_api_es2[] = {
359 EXT(ARB_vertex_program),
364 /* The ReadBuffer get token is valid under either full GL or under
365 * GLES2 if the NV_read_buffer extension is available. */
367 extra_NV_read_buffer_api_gl[] = {
373 /* This is the big table describing all the enums we accept in
374 * glGet*v(). The table is partitioned into six parts: enums
375 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
376 * between OpenGL and GLES, enums exclusive to GLES, etc for the
377 * remaining combinations. To look up the enums valid in a given API
378 * we will use a hash table specific to that API. These tables are in
379 * turn generated at build time and included through get_hash.h.
380 * The different sections are guarded by #if FEATURE_GL etc to make
381 * sure we only compile in the enums we may need. */
383 #include "get_hash.h"
385 /* All we need now is a way to look up the value struct from the enum.
386 * The code generated by gcc for the old generated big switch
387 * statement is a big, balanced, open coded if/else tree, essentially
388 * an unrolled binary search. It would be natural to sort the new
389 * enum table and use bsearch(), but we will use a read-only hash
390 * table instead. bsearch() has a nice guaranteed worst case
391 * performance, but we're also guaranteed to hit that worst case
392 * (log2(n) iterations) for about half the enums. Instead, using an
393 * open addressing hash table, we can find the enum on the first try
394 * for 80% of the enums, 1 collision for 10% and never more than 5
395 * collisions for any enum (typical numbers). And the code is very
396 * simple, even though it feels a little magic. */
400 print_table_stats(int api)
402 int i, j, collisions[11], count, hash, mask;
403 const struct value_desc *d;
404 const char *api_names[] = {
405 [API_OPENGL_COMPAT] = "GL",
406 [API_OPENGL_CORE] = "GL_CORE",
407 [API_OPENGLES] = "GLES",
408 [API_OPENGLES2] = "GLES2",
410 const char *api_name;
412 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
414 mask = Elements(table(api)) - 1;
415 memset(collisions, 0, sizeof collisions);
417 for (i = 0; i < Elements(table(api)); i++) {
421 d = &values[table(api)[i]];
422 hash = (d->pname * prime_factor);
425 if (values[table(api)[hash & mask]].pname == d->pname)
437 printf("number of enums for %s: %d (total %ld)\n",
438 api_name, count, Elements(values));
439 for (i = 0; i < Elements(collisions) - 1; i++)
440 if (collisions[i] > 0)
441 printf(" %d enums with %d %scollisions\n",
442 collisions[i], i, i == 10 ? "or more " : "");
447 * Initialize the enum hash for a given API
449 * This is called from one_time_init() to insert the enum values that
450 * are valid for the API in question into the enum hash table.
452 * \param the current context, for determining the API in question
454 void _mesa_init_get_hash(struct gl_context *ctx)
462 * Handle irregular enums
464 * Some values don't conform to the "well-known type at context
465 * pointer + offset" pattern, so we have this function to catch all
466 * the corner cases. Typically, it's a computed value or a one-off
467 * pointer to a custom struct or something.
469 * In this case we can't return a pointer to the value, so we'll have
470 * to use the temporary variable 'v' declared back in the calling
471 * glGet*v() function to store the result.
473 * \param ctx the current context
474 * \param d the struct value_desc that describes the enum
475 * \param v pointer to the tmp declared in the calling glGet*v() function
478 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
480 struct gl_buffer_object **buffer_obj;
481 struct gl_client_array *array;
485 case GL_MAJOR_VERSION:
486 v->value_int = ctx->Version / 10;
488 case GL_MINOR_VERSION:
489 v->value_int = ctx->Version % 10;
495 case GL_TEXTURE_1D_ARRAY_EXT:
496 case GL_TEXTURE_2D_ARRAY_EXT:
497 case GL_TEXTURE_CUBE_MAP_ARB:
498 case GL_TEXTURE_RECTANGLE_NV:
499 case GL_TEXTURE_EXTERNAL_OES:
500 v->value_bool = _mesa_IsEnabled(d->pname);
503 case GL_LINE_STIPPLE_PATTERN:
504 /* This is the only GLushort, special case it here by promoting
505 * to an int rather than introducing a new type. */
506 v->value_int = ctx->Line.StipplePattern;
509 case GL_CURRENT_RASTER_TEXTURE_COORDS:
510 unit = ctx->Texture.CurrentUnit;
511 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
512 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
513 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
514 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
517 case GL_CURRENT_TEXTURE_COORDS:
518 unit = ctx->Texture.CurrentUnit;
519 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
520 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
521 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
522 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
525 case GL_COLOR_WRITEMASK:
526 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
527 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
528 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
529 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
533 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
537 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
540 case GL_MAP2_GRID_DOMAIN:
541 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
542 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
543 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
544 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
547 case GL_TEXTURE_STACK_DEPTH:
548 unit = ctx->Texture.CurrentUnit;
549 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
551 case GL_TEXTURE_MATRIX:
552 unit = ctx->Texture.CurrentUnit;
553 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
556 case GL_TEXTURE_COORD_ARRAY:
557 case GL_TEXTURE_COORD_ARRAY_SIZE:
558 case GL_TEXTURE_COORD_ARRAY_TYPE:
559 case GL_TEXTURE_COORD_ARRAY_STRIDE:
560 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
561 v->value_int = *(GLuint *) ((char *) array + d->offset);
564 case GL_ACTIVE_TEXTURE_ARB:
565 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
567 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
568 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
571 case GL_MODELVIEW_STACK_DEPTH:
572 case GL_PROJECTION_STACK_DEPTH:
573 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
576 case GL_MAX_TEXTURE_SIZE:
577 case GL_MAX_3D_TEXTURE_SIZE:
578 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
579 p = (GLuint *) ((char *) ctx + d->offset);
580 v->value_int = 1 << (*p - 1);
584 v->value_int_4[0] = ctx->Scissor.X;
585 v->value_int_4[1] = ctx->Scissor.Y;
586 v->value_int_4[2] = ctx->Scissor.Width;
587 v->value_int_4[3] = ctx->Scissor.Height;
592 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
595 if (!ctx->CompileFlag)
597 else if (ctx->ExecuteFlag)
598 v->value_enum = GL_COMPILE_AND_EXECUTE;
600 v->value_enum = GL_COMPILE;
604 v->value_int_4[0] = ctx->Viewport.X;
605 v->value_int_4[1] = ctx->Viewport.Y;
606 v->value_int_4[2] = ctx->Viewport.Width;
607 v->value_int_4[3] = ctx->Viewport.Height;
610 case GL_ACTIVE_STENCIL_FACE_EXT:
611 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
614 case GL_STENCIL_FAIL:
615 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
617 case GL_STENCIL_FUNC:
618 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
620 case GL_STENCIL_PASS_DEPTH_FAIL:
621 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
623 case GL_STENCIL_PASS_DEPTH_PASS:
624 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
627 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
629 case GL_STENCIL_VALUE_MASK:
630 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
632 case GL_STENCIL_WRITEMASK:
633 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
636 case GL_NUM_EXTENSIONS:
637 v->value_int = _mesa_get_extension_count(ctx);
640 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
641 v->value_int = _mesa_get_color_read_type(ctx);
643 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
644 v->value_int = _mesa_get_color_read_format(ctx);
647 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
648 v->value_int = ctx->CurrentStack->Depth + 1;
650 case GL_CURRENT_MATRIX_ARB:
651 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
652 v->value_matrix = ctx->CurrentStack->Top;
655 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
656 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
658 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
660 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
661 ASSERT(v->value_int_n.n <= 100);
664 case GL_MAX_VARYING_FLOATS_ARB:
665 v->value_int = ctx->Const.MaxVarying * 4;
668 /* Various object names */
670 case GL_TEXTURE_BINDING_1D:
671 case GL_TEXTURE_BINDING_2D:
672 case GL_TEXTURE_BINDING_3D:
673 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
674 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
675 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
676 case GL_TEXTURE_BINDING_RECTANGLE_NV:
677 case GL_TEXTURE_BINDING_EXTERNAL_OES:
678 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
679 unit = ctx->Texture.CurrentUnit;
681 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
684 /* GL_ARB_vertex_buffer_object */
685 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
686 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
687 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
688 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
689 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
690 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
691 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
692 buffer_obj = (struct gl_buffer_object **)
693 ((char *) ctx->Array.ArrayObj + d->offset);
694 v->value_int = (*buffer_obj)->Name;
696 case GL_ARRAY_BUFFER_BINDING_ARB:
697 v->value_int = ctx->Array.ArrayBufferObj->Name;
699 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
701 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
703 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
704 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
707 /* ARB_copy_buffer */
708 case GL_COPY_READ_BUFFER:
709 v->value_int = ctx->CopyReadBuffer->Name;
711 case GL_COPY_WRITE_BUFFER:
712 v->value_int = ctx->CopyWriteBuffer->Name;
715 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
716 v->value_int = ctx->Pack.BufferObj->Name;
718 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
719 v->value_int = ctx->Unpack.BufferObj->Name;
721 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
722 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
724 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
725 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
727 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
728 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
730 case GL_TRANSFORM_FEEDBACK_BINDING:
731 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
733 case GL_CURRENT_PROGRAM:
735 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
737 case GL_READ_FRAMEBUFFER_BINDING_EXT:
738 v->value_int = ctx->ReadBuffer->Name;
740 case GL_RENDERBUFFER_BINDING_EXT:
742 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
744 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
745 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
749 if(ctx->Color._ClampFragmentColor)
750 COPY_4FV(v->value_float_4, ctx->Fog.Color);
752 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
754 case GL_COLOR_CLEAR_VALUE:
755 if(ctx->Color._ClampFragmentColor) {
756 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
757 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
758 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
759 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
761 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
763 case GL_BLEND_COLOR_EXT:
764 if(ctx->Color._ClampFragmentColor)
765 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
767 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
769 case GL_ALPHA_TEST_REF:
770 if(ctx->Color._ClampFragmentColor)
771 v->value_float = ctx->Color.AlphaRef;
773 v->value_float = ctx->Color.AlphaRefUnclamped;
775 case GL_MAX_VERTEX_UNIFORM_VECTORS:
776 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
779 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
780 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
783 /* GL_ARB_texture_buffer_object */
784 case GL_TEXTURE_BUFFER_ARB:
785 v->value_int = ctx->Texture.BufferObject->Name;
787 case GL_TEXTURE_BINDING_BUFFER_ARB:
788 unit = ctx->Texture.CurrentUnit;
790 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
792 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
794 struct gl_buffer_object *buf =
795 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
796 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
797 v->value_int = buf ? buf->Name : 0;
800 case GL_TEXTURE_BUFFER_FORMAT_ARB:
801 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
802 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
805 /* GL_ARB_sampler_objects */
806 case GL_SAMPLER_BINDING:
808 struct gl_sampler_object *samp =
809 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
810 v->value_int = samp ? samp->Name : 0;
813 /* GL_ARB_uniform_buffer_object */
814 case GL_UNIFORM_BUFFER_BINDING:
815 v->value_int = ctx->UniformBuffer->Name;
817 /* GL_ARB_timer_query */
819 if (ctx->Driver.GetTimestamp) {
820 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
823 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
830 * Check extra constraints on a struct value_desc descriptor
832 * If a struct value_desc has a non-NULL extra pointer, it means that
833 * there are a number of extra constraints to check or actions to
834 * perform. The extras is just an integer array where each integer
835 * encode different constraints or actions.
837 * \param ctx current context
838 * \param func name of calling glGet*v() function for error reporting
839 * \param d the struct value_desc that has the extra constraints
841 * \return GL_FALSE if one of the constraints was not satisfied,
845 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
847 const GLuint version = ctx->Version;
853 for (e = d->extra; *e != EXTRA_END; e++)
855 case EXTRA_VERSION_30:
861 case EXTRA_VERSION_31:
867 case EXTRA_VERSION_32:
873 case EXTRA_NEW_FRAG_CLAMP:
874 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
875 _mesa_update_state(ctx);
878 if (ctx->API == API_OPENGLES2) {
884 if (_mesa_is_gles3(ctx)) {
890 if (_mesa_is_desktop_gl(ctx)) {
895 case EXTRA_API_GL_CORE:
896 if (ctx->API == API_OPENGL_CORE) {
901 case EXTRA_NEW_BUFFERS:
902 if (ctx->NewState & _NEW_BUFFERS)
903 _mesa_update_state(ctx);
905 case EXTRA_FLUSH_CURRENT:
906 FLUSH_CURRENT(ctx, 0);
908 case EXTRA_VALID_DRAW_BUFFER:
909 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
910 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
911 func, d->pname - GL_DRAW_BUFFER0_ARB);
915 case EXTRA_VALID_TEXTURE_UNIT:
916 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
917 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
918 func, ctx->Texture.CurrentUnit);
922 case EXTRA_VALID_CLIP_DISTANCE:
923 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
924 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
925 func, d->pname - GL_CLIP_DISTANCE0);
930 if (ctx->Const.GLSLVersion >= 130) {
937 default: /* *e is a offset into the extension struct */
939 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
944 if (total > 0 && enabled == 0) {
945 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
946 _mesa_lookup_enum_by_nr(d->pname));
953 static const struct value_desc error_value =
954 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
957 * Find the struct value_desc corresponding to the enum 'pname'.
959 * We hash the enum value to get an index into the 'table' array,
960 * which holds the index in the 'values' array of struct value_desc.
961 * Once we've found the entry, we do the extra checks, if any, then
962 * look up the value and return a pointer to it.
964 * If the value has to be computed (for example, it's the result of a
965 * function call or we need to add 1 to it), we use the tmp 'v' to
968 * \param func name of glGet*v() func for error reporting
969 * \param pname the enum value we're looking up
970 * \param p is were we return the pointer to the value
971 * \param v a tmp union value variable in the calling glGet*v() function
973 * \return the struct value_desc corresponding to the enum or a struct
974 * value_desc of TYPE_INVALID if not found. This lets the calling
975 * glGet*v() function jump right into a switch statement and
976 * handle errors there instead of having to check for NULL.
978 static const struct value_desc *
979 find_value(const char *func, GLenum pname, void **p, union value *v)
981 GET_CURRENT_CONTEXT(ctx);
982 struct gl_texture_unit *unit;
984 const struct value_desc *d;
988 /* We index into the table_set[] list of per-API hash tables using the API's
989 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
990 * value since it's compatible with GLES2 its entry in table_set[] is at the
993 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
994 if (_mesa_is_gles3(ctx)) {
995 api = API_OPENGL_LAST + 1;
997 mask = Elements(table(api)) - 1;
998 hash = (pname * prime_factor);
1000 int idx = table(api)[hash & mask];
1002 /* If the enum isn't valid, the hash walk ends with index 0,
1003 * pointing to the first entry of values[] which doesn't hold
1004 * any valid enum. */
1005 if (unlikely(idx == 0)) {
1006 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1007 _mesa_lookup_enum_by_nr(pname));
1008 return &error_value;
1012 if (likely(d->pname == pname))
1018 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1019 return &error_value;
1021 switch (d->location) {
1023 *p = ((char *) ctx->DrawBuffer + d->offset);
1026 *p = ((char *) ctx + d->offset);
1029 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1032 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1033 *p = ((char *) unit + d->offset);
1036 find_custom_value(ctx, d, v);
1044 /* silence warning */
1045 return &error_value;
1048 static const int transpose[] = {
1056 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1058 const struct value_desc *d;
1063 GET_CURRENT_CONTEXT(ctx);
1065 ASSERT_OUTSIDE_BEGIN_END(ctx);
1067 d = find_value("glGetBooleanv", pname, &p, &v);
1072 params[0] = INT_TO_BOOLEAN(d->offset);
1077 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1080 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1083 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1086 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1090 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1094 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1096 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1099 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1102 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1106 for (i = 0; i < v.value_int_n.n; i++)
1107 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1111 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1115 params[0] = ((GLboolean*) p)[0];
1119 m = *(GLmatrix **) p;
1120 for (i = 0; i < 16; i++)
1121 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1125 m = *(GLmatrix **) p;
1126 for (i = 0; i < 16; i++)
1127 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1138 shift = d->type - TYPE_BIT_0;
1139 params[0] = (*(GLbitfield *) p >> shift) & 1;
1145 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1147 const struct value_desc *d;
1152 GET_CURRENT_CONTEXT(ctx);
1154 ASSERT_OUTSIDE_BEGIN_END(ctx);
1156 d = find_value("glGetFloatv", pname, &p, &v);
1161 params[0] = (GLfloat) d->offset;
1166 params[3] = ((GLfloat *) p)[3];
1169 params[2] = ((GLfloat *) p)[2];
1172 params[1] = ((GLfloat *) p)[1];
1175 params[0] = ((GLfloat *) p)[0];
1179 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1183 params[3] = (GLfloat) (((GLint *) p)[3]);
1185 params[2] = (GLfloat) (((GLint *) p)[2]);
1188 params[1] = (GLfloat) (((GLint *) p)[1]);
1191 params[0] = (GLfloat) (((GLint *) p)[0]);
1195 for (i = 0; i < v.value_int_n.n; i++)
1196 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1200 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1204 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1208 m = *(GLmatrix **) p;
1209 for (i = 0; i < 16; i++)
1210 params[i] = m->m[i];
1214 m = *(GLmatrix **) p;
1215 for (i = 0; i < 16; i++)
1216 params[i] = m->m[transpose[i]];
1227 shift = d->type - TYPE_BIT_0;
1228 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1234 _mesa_GetIntegerv(GLenum pname, GLint *params)
1236 const struct value_desc *d;
1241 GET_CURRENT_CONTEXT(ctx);
1243 ASSERT_OUTSIDE_BEGIN_END(ctx);
1245 d = find_value("glGetIntegerv", pname, &p, &v);
1250 params[0] = d->offset;
1254 params[3] = IROUND(((GLfloat *) p)[3]);
1256 params[2] = IROUND(((GLfloat *) p)[2]);
1258 params[1] = IROUND(((GLfloat *) p)[1]);
1260 params[0] = IROUND(((GLfloat *) p)[0]);
1264 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1266 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1268 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1270 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1274 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1278 params[3] = ((GLint *) p)[3];
1280 params[2] = ((GLint *) p)[2];
1283 params[1] = ((GLint *) p)[1];
1286 params[0] = ((GLint *) p)[0];
1290 for (i = 0; i < v.value_int_n.n; i++)
1291 params[i] = v.value_int_n.ints[i];
1295 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1299 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1303 m = *(GLmatrix **) p;
1304 for (i = 0; i < 16; i++)
1305 params[i] = FLOAT_TO_INT(m->m[i]);
1309 m = *(GLmatrix **) p;
1310 for (i = 0; i < 16; i++)
1311 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1322 shift = d->type - TYPE_BIT_0;
1323 params[0] = (*(GLbitfield *) p >> shift) & 1;
1329 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1331 const struct value_desc *d;
1336 GET_CURRENT_CONTEXT(ctx);
1338 ASSERT_OUTSIDE_BEGIN_END(ctx);
1340 d = find_value("glGetInteger64v", pname, &p, &v);
1345 params[0] = d->offset;
1349 params[3] = IROUND64(((GLfloat *) p)[3]);
1351 params[2] = IROUND64(((GLfloat *) p)[2]);
1353 params[1] = IROUND64(((GLfloat *) p)[1]);
1355 params[0] = IROUND64(((GLfloat *) p)[0]);
1359 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1361 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1363 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1365 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1369 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1373 params[3] = ((GLint *) p)[3];
1375 params[2] = ((GLint *) p)[2];
1378 params[1] = ((GLint *) p)[1];
1381 params[0] = ((GLint *) p)[0];
1385 for (i = 0; i < v.value_int_n.n; i++)
1386 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1390 params[0] = ((GLint64 *) p)[0];
1394 params[0] = ((GLboolean*) p)[0];
1398 m = *(GLmatrix **) p;
1399 for (i = 0; i < 16; i++)
1400 params[i] = FLOAT_TO_INT64(m->m[i]);
1404 m = *(GLmatrix **) p;
1405 for (i = 0; i < 16; i++)
1406 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1417 shift = d->type - TYPE_BIT_0;
1418 params[0] = (*(GLbitfield *) p >> shift) & 1;
1424 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1426 const struct value_desc *d;
1431 GET_CURRENT_CONTEXT(ctx);
1433 ASSERT_OUTSIDE_BEGIN_END(ctx);
1435 d = find_value("glGetDoublev", pname, &p, &v);
1440 params[0] = d->offset;
1445 params[3] = ((GLfloat *) p)[3];
1448 params[2] = ((GLfloat *) p)[2];
1451 params[1] = ((GLfloat *) p)[1];
1454 params[0] = ((GLfloat *) p)[0];
1458 params[0] = ((GLdouble *) p)[0];
1462 params[3] = ((GLint *) p)[3];
1464 params[2] = ((GLint *) p)[2];
1467 params[1] = ((GLint *) p)[1];
1470 params[0] = ((GLint *) p)[0];
1474 for (i = 0; i < v.value_int_n.n; i++)
1475 params[i] = v.value_int_n.ints[i];
1479 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1483 params[0] = *(GLboolean*) p;
1487 m = *(GLmatrix **) p;
1488 for (i = 0; i < 16; i++)
1489 params[i] = m->m[i];
1493 m = *(GLmatrix **) p;
1494 for (i = 0; i < 16; i++)
1495 params[i] = m->m[transpose[i]];
1506 shift = d->type - TYPE_BIT_0;
1507 params[0] = (*(GLbitfield *) p >> shift) & 1;
1512 static enum value_type
1513 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1515 GET_CURRENT_CONTEXT(ctx);
1520 if (index >= ctx->Const.MaxDrawBuffers)
1522 if (!ctx->Extensions.EXT_draw_buffers2)
1524 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1529 case GL_BLEND_SRC_RGB:
1530 if (index >= ctx->Const.MaxDrawBuffers)
1532 if (!ctx->Extensions.ARB_draw_buffers_blend)
1534 v->value_int = ctx->Color.Blend[index].SrcRGB;
1536 case GL_BLEND_SRC_ALPHA:
1537 if (index >= ctx->Const.MaxDrawBuffers)
1539 if (!ctx->Extensions.ARB_draw_buffers_blend)
1541 v->value_int = ctx->Color.Blend[index].SrcA;
1545 case GL_BLEND_DST_RGB:
1546 if (index >= ctx->Const.MaxDrawBuffers)
1548 if (!ctx->Extensions.ARB_draw_buffers_blend)
1550 v->value_int = ctx->Color.Blend[index].DstRGB;
1552 case GL_BLEND_DST_ALPHA:
1553 if (index >= ctx->Const.MaxDrawBuffers)
1555 if (!ctx->Extensions.ARB_draw_buffers_blend)
1557 v->value_int = ctx->Color.Blend[index].DstA;
1559 case GL_BLEND_EQUATION_RGB:
1560 if (index >= ctx->Const.MaxDrawBuffers)
1562 if (!ctx->Extensions.ARB_draw_buffers_blend)
1564 v->value_int = ctx->Color.Blend[index].EquationRGB;
1566 case GL_BLEND_EQUATION_ALPHA:
1567 if (index >= ctx->Const.MaxDrawBuffers)
1569 if (!ctx->Extensions.ARB_draw_buffers_blend)
1571 v->value_int = ctx->Color.Blend[index].EquationA;
1574 case GL_COLOR_WRITEMASK:
1575 if (index >= ctx->Const.MaxDrawBuffers)
1577 if (!ctx->Extensions.EXT_draw_buffers2)
1579 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1580 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1581 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1582 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1585 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1586 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1588 if (!ctx->Extensions.EXT_transform_feedback)
1590 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1593 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1594 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1596 if (!ctx->Extensions.EXT_transform_feedback)
1599 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1602 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1603 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1605 if (!ctx->Extensions.EXT_transform_feedback)
1607 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1610 case GL_UNIFORM_BUFFER_BINDING:
1611 if (index >= ctx->Const.MaxUniformBufferBindings)
1613 if (!ctx->Extensions.ARB_uniform_buffer_object)
1615 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1618 case GL_UNIFORM_BUFFER_START:
1619 if (index >= ctx->Const.MaxUniformBufferBindings)
1621 if (!ctx->Extensions.ARB_uniform_buffer_object)
1623 v->value_int = ctx->UniformBufferBindings[index].Offset;
1626 case GL_UNIFORM_BUFFER_SIZE:
1627 if (index >= ctx->Const.MaxUniformBufferBindings)
1629 if (!ctx->Extensions.ARB_uniform_buffer_object)
1631 v->value_int = ctx->UniformBufferBindings[index].Size;
1636 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1637 _mesa_lookup_enum_by_nr(pname));
1638 return TYPE_INVALID;
1640 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1641 _mesa_lookup_enum_by_nr(pname));
1642 return TYPE_INVALID;
1646 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1649 enum value_type type =
1650 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1654 params[0] = INT_TO_BOOLEAN(v.value_int);
1657 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1658 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1659 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1660 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1663 params[0] = INT64_TO_BOOLEAN(v.value_int);
1666 ; /* nothing - GL error was recorded */
1671 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1674 enum value_type type =
1675 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1679 params[0] = v.value_int;
1682 params[0] = v.value_int_4[0];
1683 params[1] = v.value_int_4[1];
1684 params[2] = v.value_int_4[2];
1685 params[3] = v.value_int_4[3];
1688 params[0] = INT64_TO_INT(v.value_int);
1691 ; /* nothing - GL error was recorded */
1696 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1699 enum value_type type =
1700 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1704 params[0] = v.value_int;
1707 params[0] = v.value_int_4[0];
1708 params[1] = v.value_int_4[1];
1709 params[2] = v.value_int_4[2];
1710 params[3] = v.value_int_4[3];
1713 params[0] = v.value_int;
1716 ; /* nothing - GL error was recorded */
1721 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1723 const struct value_desc *d;
1729 d = find_value("glGetDoublev", pname, &p, &v);
1734 params[0] = INT_TO_FIXED(d->offset);
1739 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1742 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1745 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1748 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1752 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1756 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1758 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1761 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1764 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1768 for (i = 0; i < v.value_int_n.n; i++)
1769 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1773 params[0] = ((GLint64 *) p)[0];
1777 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1781 m = *(GLmatrix **) p;
1782 for (i = 0; i < 16; i++)
1783 params[i] = FLOAT_TO_FIXED(m->m[i]);
1787 m = *(GLmatrix **) p;
1788 for (i = 0; i < 16; i++)
1789 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1800 shift = d->type - TYPE_BIT_0;
1801 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);