2 * Copyright (C) 2010 Brian Paul All Rights Reserved.
3 * Copyright (C) 2010 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Kristian Høgsberg <krh@bitplanet.net>
29 #include "extensions.h"
32 #include "mfeatures.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
38 /* This is a table driven implemetation of the glGet*v() functions.
39 * The basic idea is that most getters just look up an int somewhere
40 * in struct gl_context and then convert it to a bool or float according to
41 * which of glGetIntegerv() glGetBooleanv() etc is being called.
42 * Instead of generating code to do this, we can just record the enum
43 * value and the offset into struct gl_context in an array of structs. Then
44 * in glGet*(), we lookup the struct for the enum in question, and use
45 * the offset to get the int we need.
47 * Sometimes we need to look up a float, a boolean, a bit in a
48 * bitfield, a matrix or other types instead, so we need to track the
49 * type of the value in struct gl_context. And sometimes the value isn't in
50 * struct gl_context but in the drawbuffer, the array object, current texture
51 * unit, or maybe it's a computed value. So we need to also track
52 * where or how to find the value. Finally, we sometimes need to
53 * check that one of a number of extensions are enabled, the GL
54 * version or flush or call _mesa_update_state(). This is done by
55 * attaching optional extra information to the value description
56 * struct, it's sort of like an array of opcodes that describe extra
59 * Putting all this together we end up with struct value_desc below,
60 * and with a couple of macros to help, the table of struct value_desc
61 * is about as concise as the specification in the old python script.
64 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
65 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
66 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
67 (GLint) ((F) * 65536.0f) )
69 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
70 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
71 ((I) < SHRT_MIN) ? INT_MIN : \
72 (GLint) ((I) * 65536) )
74 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
75 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
77 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
78 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
79 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
80 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
82 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
83 #define ENUM_TO_FIXED(E) (E)
118 enum value_location {
134 EXTRA_NEW_FRAG_CLAMP,
135 EXTRA_VALID_DRAW_BUFFER,
136 EXTRA_VALID_TEXTURE_UNIT,
137 EXTRA_VALID_CLIP_DISTANCE,
142 #define NO_EXTRA NULL
147 GLubyte location; /**< enum value_location */
148 GLubyte type; /**< enum value_type */
155 GLfloat value_float_4[4];
156 GLmatrix *value_matrix;
158 GLint value_int_4[4];
162 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
166 GLboolean value_bool;
169 #define BUFFER_FIELD(field, type) \
170 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
171 #define CONTEXT_FIELD(field, type) \
172 LOC_CONTEXT, type, offsetof(struct gl_context, field)
173 #define ARRAY_FIELD(field, type) \
174 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
175 #undef CONST /* already defined through windows.h */
176 #define CONST(value) \
177 LOC_CONTEXT, TYPE_CONST, value
179 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
180 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
181 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
183 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
184 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
185 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
186 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
187 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
188 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
189 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
190 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
191 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
192 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
193 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
194 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
195 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
196 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
197 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
198 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
199 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
200 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
201 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
202 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
204 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
205 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
206 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
209 offsetof(struct gl_extensions, f)
211 #define EXTRA_EXT(e) \
212 static const int extra_##e[] = { \
216 #define EXTRA_EXT2(e1, e2) \
217 static const int extra_##e1##_##e2[] = { \
218 EXT(e1), EXT(e2), EXTRA_END \
221 /* The 'extra' mechanism is a way to specify extra checks (such as
222 * extensions or specific gl versions) or actions (flush current, new
223 * buffers) that we need to do before looking up an enum. We need to
224 * declare them all up front so we can refer to them in the value_desc
227 static const int extra_new_buffers[] = {
232 static const int extra_new_frag_clamp[] = {
233 EXTRA_NEW_FRAG_CLAMP,
237 static const int extra_valid_draw_buffer[] = {
238 EXTRA_VALID_DRAW_BUFFER,
242 static const int extra_valid_texture_unit[] = {
243 EXTRA_VALID_TEXTURE_UNIT,
247 static const int extra_valid_clip_distance[] = {
248 EXTRA_VALID_CLIP_DISTANCE,
252 static const int extra_flush_current_valid_texture_unit[] = {
254 EXTRA_VALID_TEXTURE_UNIT,
258 static const int extra_flush_current[] = {
263 static const int extra_EXT_secondary_color_flush_current[] = {
264 EXT(EXT_secondary_color),
269 static const int extra_EXT_fog_coord_flush_current[] = {
275 static const int extra_EXT_texture_integer[] = {
276 EXT(EXT_texture_integer),
280 static const int extra_GLSL_130[] = {
285 static const int extra_texture_buffer_object[] = {
287 EXT(ARB_texture_buffer_object),
291 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
292 EXT(ARB_uniform_buffer_object),
293 EXT(ARB_geometry_shader4),
298 EXTRA_EXT(ARB_ES2_compatibility);
299 EXTRA_EXT(ARB_texture_cube_map);
300 EXTRA_EXT(MESA_texture_array);
301 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
302 EXTRA_EXT(EXT_secondary_color);
303 EXTRA_EXT(EXT_fog_coord);
304 EXTRA_EXT(NV_fog_distance);
305 EXTRA_EXT(EXT_texture_filter_anisotropic);
306 EXTRA_EXT(IBM_rasterpos_clip);
307 EXTRA_EXT(NV_point_sprite);
308 EXTRA_EXT(NV_vertex_program);
309 EXTRA_EXT(NV_fragment_program);
310 EXTRA_EXT(NV_texture_rectangle);
311 EXTRA_EXT(EXT_stencil_two_side);
312 EXTRA_EXT(NV_light_max_exponent);
313 EXTRA_EXT(EXT_depth_bounds_test);
314 EXTRA_EXT(ARB_depth_clamp);
315 EXTRA_EXT(ATI_fragment_shader);
316 EXTRA_EXT(EXT_framebuffer_blit);
317 EXTRA_EXT(ARB_shader_objects);
318 EXTRA_EXT(EXT_provoking_vertex);
319 EXTRA_EXT(ARB_fragment_shader);
320 EXTRA_EXT(ARB_fragment_program);
321 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
322 EXTRA_EXT(EXT_framebuffer_object);
323 EXTRA_EXT(ARB_seamless_cube_map);
324 EXTRA_EXT(EXT_compiled_vertex_array);
326 EXTRA_EXT(ARB_vertex_shader);
327 EXTRA_EXT(EXT_transform_feedback);
328 EXTRA_EXT(ARB_transform_feedback2);
329 EXTRA_EXT(ARB_transform_feedback3);
330 EXTRA_EXT(EXT_pixel_buffer_object);
331 EXTRA_EXT(ARB_vertex_program);
332 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
333 EXTRA_EXT2(ARB_fragment_program, NV_fragment_program);
334 EXTRA_EXT2(ARB_vertex_program, NV_vertex_program);
335 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
336 EXTRA_EXT(ARB_geometry_shader4);
337 EXTRA_EXT(ARB_color_buffer_float);
338 EXTRA_EXT(ARB_copy_buffer);
339 EXTRA_EXT(EXT_framebuffer_sRGB);
340 EXTRA_EXT(ARB_texture_buffer_object);
341 EXTRA_EXT(OES_EGL_image_external);
342 EXTRA_EXT(ARB_blend_func_extended);
343 EXTRA_EXT(ARB_uniform_buffer_object);
344 EXTRA_EXT(ARB_timer_query);
347 extra_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
348 EXT(ARB_vertex_program),
349 EXT(ARB_fragment_program),
350 EXT(NV_vertex_program),
355 extra_NV_vertex_program_ARB_vertex_program_ARB_fragment_program_NV_vertex_program[] = {
356 EXT(NV_vertex_program),
357 EXT(ARB_vertex_program),
358 EXT(ARB_fragment_program),
359 EXT(NV_vertex_program),
364 extra_NV_primitive_restart[] = {
365 EXT(NV_primitive_restart),
369 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
370 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
371 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
374 extra_ARB_vertex_program_api_es2[] = {
375 EXT(ARB_vertex_program),
380 /* The ReadBuffer get token is valid under either full GL or under
381 * GLES2 if the NV_read_buffer extension is available. */
383 extra_NV_read_buffer_api_gl[] = {
389 /* This is the big table describing all the enums we accept in
390 * glGet*v(). The table is partitioned into six parts: enums
391 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
392 * between OpenGL and GLES, enums exclusive to GLES, etc for the
393 * remaining combinations. To look up the enums valid in a given API
394 * we will use a hash table specific to that API. These tables are in
395 * turn generated at build time and included through get_hash.h.
396 * The different sections are guarded by #if FEATURE_GL etc to make
397 * sure we only compile in the enums we may need. */
399 #include "get_hash.h"
401 /* All we need now is a way to look up the value struct from the enum.
402 * The code generated by gcc for the old generated big switch
403 * statement is a big, balanced, open coded if/else tree, essentially
404 * an unrolled binary search. It would be natural to sort the new
405 * enum table and use bsearch(), but we will use a read-only hash
406 * table instead. bsearch() has a nice guaranteed worst case
407 * performance, but we're also guaranteed to hit that worst case
408 * (log2(n) iterations) for about half the enums. Instead, using an
409 * open addressing hash table, we can find the enum on the first try
410 * for 80% of the enums, 1 collision for 10% and never more than 5
411 * collisions for any enum (typical numbers). And the code is very
412 * simple, even though it feels a little magic. */
416 print_table_stats(int api)
418 int i, j, collisions[11], count, hash, mask;
419 const struct value_desc *d;
420 const char *api_names[] = {
422 [API_OPENGL_CORE] = "GL_CORE",
423 [API_OPENGLES] = "GLES",
424 [API_OPENGLES2] = "GLES2",
426 const char *api_name;
428 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
430 mask = Elements(table(api)) - 1;
431 memset(collisions, 0, sizeof collisions);
433 for (i = 0; i < Elements(table(api)); i++) {
437 d = &values[table(api)[i]];
438 hash = (d->pname * prime_factor);
441 if (values[table(api)[hash & mask]].pname == d->pname)
453 printf("number of enums for %s: %d (total %ld)\n",
454 api_name, count, Elements(values));
455 for (i = 0; i < Elements(collisions) - 1; i++)
456 if (collisions[i] > 0)
457 printf(" %d enums with %d %scollisions\n",
458 collisions[i], i, i == 10 ? "or more " : "");
463 * Initialize the enum hash for a given API
465 * This is called from one_time_init() to insert the enum values that
466 * are valid for the API in question into the enum hash table.
468 * \param the current context, for determining the API in question
470 void _mesa_init_get_hash(struct gl_context *ctx)
478 * Handle irregular enums
480 * Some values don't conform to the "well-known type at context
481 * pointer + offset" pattern, so we have this function to catch all
482 * the corner cases. Typically, it's a computed value or a one-off
483 * pointer to a custom struct or something.
485 * In this case we can't return a pointer to the value, so we'll have
486 * to use the temporary variable 'v' declared back in the calling
487 * glGet*v() function to store the result.
489 * \param ctx the current context
490 * \param d the struct value_desc that describes the enum
491 * \param v pointer to the tmp declared in the calling glGet*v() function
494 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
496 struct gl_buffer_object **buffer_obj;
497 struct gl_client_array *array;
501 case GL_MAJOR_VERSION:
502 v->value_int = ctx->Version / 10;
504 case GL_MINOR_VERSION:
505 v->value_int = ctx->Version % 10;
511 case GL_TEXTURE_1D_ARRAY_EXT:
512 case GL_TEXTURE_2D_ARRAY_EXT:
513 case GL_TEXTURE_CUBE_MAP_ARB:
514 case GL_TEXTURE_RECTANGLE_NV:
515 case GL_TEXTURE_EXTERNAL_OES:
516 v->value_bool = _mesa_IsEnabled(d->pname);
519 case GL_LINE_STIPPLE_PATTERN:
520 /* This is the only GLushort, special case it here by promoting
521 * to an int rather than introducing a new type. */
522 v->value_int = ctx->Line.StipplePattern;
525 case GL_CURRENT_RASTER_TEXTURE_COORDS:
526 unit = ctx->Texture.CurrentUnit;
527 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
528 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
529 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
530 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
533 case GL_CURRENT_TEXTURE_COORDS:
534 unit = ctx->Texture.CurrentUnit;
535 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
536 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
537 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
538 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
541 case GL_COLOR_WRITEMASK:
542 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
543 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
544 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
545 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
549 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
553 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
556 case GL_MAP2_GRID_DOMAIN:
557 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
558 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
559 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
560 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
563 case GL_TEXTURE_STACK_DEPTH:
564 unit = ctx->Texture.CurrentUnit;
565 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
567 case GL_TEXTURE_MATRIX:
568 unit = ctx->Texture.CurrentUnit;
569 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
572 case GL_TEXTURE_COORD_ARRAY:
573 case GL_TEXTURE_COORD_ARRAY_SIZE:
574 case GL_TEXTURE_COORD_ARRAY_TYPE:
575 case GL_TEXTURE_COORD_ARRAY_STRIDE:
576 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
577 v->value_int = *(GLuint *) ((char *) array + d->offset);
580 case GL_ACTIVE_TEXTURE_ARB:
581 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
583 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
584 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
587 case GL_MODELVIEW_STACK_DEPTH:
588 case GL_PROJECTION_STACK_DEPTH:
589 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
592 case GL_MAX_TEXTURE_SIZE:
593 case GL_MAX_3D_TEXTURE_SIZE:
594 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
595 p = (GLuint *) ((char *) ctx + d->offset);
596 v->value_int = 1 << (*p - 1);
600 v->value_int_4[0] = ctx->Scissor.X;
601 v->value_int_4[1] = ctx->Scissor.Y;
602 v->value_int_4[2] = ctx->Scissor.Width;
603 v->value_int_4[3] = ctx->Scissor.Height;
608 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
611 if (!ctx->CompileFlag)
613 else if (ctx->ExecuteFlag)
614 v->value_enum = GL_COMPILE_AND_EXECUTE;
616 v->value_enum = GL_COMPILE;
620 v->value_int_4[0] = ctx->Viewport.X;
621 v->value_int_4[1] = ctx->Viewport.Y;
622 v->value_int_4[2] = ctx->Viewport.Width;
623 v->value_int_4[3] = ctx->Viewport.Height;
626 case GL_ACTIVE_STENCIL_FACE_EXT:
627 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
630 case GL_STENCIL_FAIL:
631 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
633 case GL_STENCIL_FUNC:
634 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
636 case GL_STENCIL_PASS_DEPTH_FAIL:
637 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
639 case GL_STENCIL_PASS_DEPTH_PASS:
640 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
643 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
645 case GL_STENCIL_VALUE_MASK:
646 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
648 case GL_STENCIL_WRITEMASK:
649 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
652 case GL_NUM_EXTENSIONS:
653 v->value_int = _mesa_get_extension_count(ctx);
656 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
657 v->value_int = _mesa_get_color_read_type(ctx);
659 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
660 v->value_int = _mesa_get_color_read_format(ctx);
663 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
664 v->value_int = ctx->CurrentStack->Depth + 1;
666 case GL_CURRENT_MATRIX_ARB:
667 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
668 v->value_matrix = ctx->CurrentStack->Top;
671 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
672 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
674 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
676 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
677 ASSERT(v->value_int_n.n <= 100);
680 case GL_MAX_VARYING_FLOATS_ARB:
681 v->value_int = ctx->Const.MaxVarying * 4;
684 /* Various object names */
686 case GL_TEXTURE_BINDING_1D:
687 case GL_TEXTURE_BINDING_2D:
688 case GL_TEXTURE_BINDING_3D:
689 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
690 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
691 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
692 case GL_TEXTURE_BINDING_RECTANGLE_NV:
693 case GL_TEXTURE_BINDING_EXTERNAL_OES:
694 unit = ctx->Texture.CurrentUnit;
696 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
699 /* GL_ARB_vertex_buffer_object */
700 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
701 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
702 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
703 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
704 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
705 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
706 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
707 buffer_obj = (struct gl_buffer_object **)
708 ((char *) ctx->Array.ArrayObj + d->offset);
709 v->value_int = (*buffer_obj)->Name;
711 case GL_ARRAY_BUFFER_BINDING_ARB:
712 v->value_int = ctx->Array.ArrayBufferObj->Name;
714 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
716 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
718 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
719 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
722 /* ARB_copy_buffer */
723 case GL_COPY_READ_BUFFER:
724 v->value_int = ctx->CopyReadBuffer->Name;
726 case GL_COPY_WRITE_BUFFER:
727 v->value_int = ctx->CopyWriteBuffer->Name;
730 case GL_FRAGMENT_PROGRAM_BINDING_NV:
732 ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
734 case GL_VERTEX_PROGRAM_BINDING_NV:
736 ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
738 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
739 v->value_int = ctx->Pack.BufferObj->Name;
741 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
742 v->value_int = ctx->Unpack.BufferObj->Name;
744 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
745 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
747 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
748 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
750 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
751 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
753 case GL_TRANSFORM_FEEDBACK_BINDING:
754 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
756 case GL_CURRENT_PROGRAM:
758 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
760 case GL_READ_FRAMEBUFFER_BINDING_EXT:
761 v->value_int = ctx->ReadBuffer->Name;
763 case GL_RENDERBUFFER_BINDING_EXT:
765 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
767 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
768 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
772 if(ctx->Color._ClampFragmentColor)
773 COPY_4FV(v->value_float_4, ctx->Fog.Color);
775 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
777 case GL_COLOR_CLEAR_VALUE:
778 if(ctx->Color._ClampFragmentColor) {
779 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
780 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
781 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
782 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
784 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
786 case GL_BLEND_COLOR_EXT:
787 if(ctx->Color._ClampFragmentColor)
788 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
790 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
792 case GL_ALPHA_TEST_REF:
793 if(ctx->Color._ClampFragmentColor)
794 v->value_float = ctx->Color.AlphaRef;
796 v->value_float = ctx->Color.AlphaRefUnclamped;
798 case GL_MAX_VERTEX_UNIFORM_VECTORS:
799 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
802 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
803 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
806 /* GL_ARB_texture_buffer_object */
807 case GL_TEXTURE_BUFFER_ARB:
808 v->value_int = ctx->Texture.BufferObject->Name;
810 case GL_TEXTURE_BINDING_BUFFER_ARB:
811 unit = ctx->Texture.CurrentUnit;
813 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
815 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
817 struct gl_buffer_object *buf =
818 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
819 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
820 v->value_int = buf ? buf->Name : 0;
823 case GL_TEXTURE_BUFFER_FORMAT_ARB:
824 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
825 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
828 /* GL_ARB_sampler_objects */
829 case GL_SAMPLER_BINDING:
831 struct gl_sampler_object *samp =
832 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
833 v->value_int = samp ? samp->Name : 0;
836 /* GL_ARB_uniform_buffer_object */
837 case GL_UNIFORM_BUFFER_BINDING:
838 v->value_int = ctx->UniformBuffer->Name;
840 /* GL_ARB_timer_query */
842 if (ctx->Driver.GetTimestamp) {
843 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
846 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
853 * Check extra constraints on a struct value_desc descriptor
855 * If a struct value_desc has a non-NULL extra pointer, it means that
856 * there are a number of extra constraints to check or actions to
857 * perform. The extras is just an integer array where each integer
858 * encode different constraints or actions.
860 * \param ctx current context
861 * \param func name of calling glGet*v() function for error reporting
862 * \param d the struct value_desc that has the extra constraints
864 * \return GL_FALSE if one of the constraints was not satisfied,
868 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
870 const GLuint version = ctx->Version;
876 for (e = d->extra; *e != EXTRA_END; e++)
878 case EXTRA_VERSION_30:
884 case EXTRA_VERSION_31:
890 case EXTRA_VERSION_32:
896 case EXTRA_NEW_FRAG_CLAMP:
897 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
898 _mesa_update_state(ctx);
901 if (ctx->API == API_OPENGLES2) {
907 if (_mesa_is_desktop_gl(ctx)) {
912 case EXTRA_NEW_BUFFERS:
913 if (ctx->NewState & _NEW_BUFFERS)
914 _mesa_update_state(ctx);
916 case EXTRA_FLUSH_CURRENT:
917 FLUSH_CURRENT(ctx, 0);
919 case EXTRA_VALID_DRAW_BUFFER:
920 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
921 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
922 func, d->pname - GL_DRAW_BUFFER0_ARB);
926 case EXTRA_VALID_TEXTURE_UNIT:
927 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
928 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
929 func, ctx->Texture.CurrentUnit);
933 case EXTRA_VALID_CLIP_DISTANCE:
934 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
935 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
936 func, d->pname - GL_CLIP_DISTANCE0);
941 if (ctx->Const.GLSLVersion >= 130) {
948 default: /* *e is a offset into the extension struct */
950 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
955 if (total > 0 && enabled == 0) {
956 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
957 _mesa_lookup_enum_by_nr(d->pname));
964 static const struct value_desc error_value =
965 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
968 * Find the struct value_desc corresponding to the enum 'pname'.
970 * We hash the enum value to get an index into the 'table' array,
971 * which holds the index in the 'values' array of struct value_desc.
972 * Once we've found the entry, we do the extra checks, if any, then
973 * look up the value and return a pointer to it.
975 * If the value has to be computed (for example, it's the result of a
976 * function call or we need to add 1 to it), we use the tmp 'v' to
979 * \param func name of glGet*v() func for error reporting
980 * \param pname the enum value we're looking up
981 * \param p is were we return the pointer to the value
982 * \param v a tmp union value variable in the calling glGet*v() function
984 * \return the struct value_desc corresponding to the enum or a struct
985 * value_desc of TYPE_INVALID if not found. This lets the calling
986 * glGet*v() function jump right into a switch statement and
987 * handle errors there instead of having to check for NULL.
989 static const struct value_desc *
990 find_value(const char *func, GLenum pname, void **p, union value *v)
992 GET_CURRENT_CONTEXT(ctx);
993 struct gl_texture_unit *unit;
995 const struct value_desc *d;
999 mask = Elements(table(api)) - 1;
1000 hash = (pname * prime_factor);
1002 int idx = table(api)[hash & mask];
1004 /* If the enum isn't valid, the hash walk ends with index 0,
1005 * pointing to the first entry of values[] which doesn't hold
1006 * any valid enum. */
1007 if (unlikely(idx == 0)) {
1008 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1009 _mesa_lookup_enum_by_nr(pname));
1010 return &error_value;
1014 if (likely(d->pname == pname))
1020 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1021 return &error_value;
1023 switch (d->location) {
1025 *p = ((char *) ctx->DrawBuffer + d->offset);
1028 *p = ((char *) ctx + d->offset);
1031 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1034 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1035 *p = ((char *) unit + d->offset);
1038 find_custom_value(ctx, d, v);
1046 /* silence warning */
1047 return &error_value;
1050 static const int transpose[] = {
1058 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1060 const struct value_desc *d;
1065 GET_CURRENT_CONTEXT(ctx);
1067 ASSERT_OUTSIDE_BEGIN_END(ctx);
1069 d = find_value("glGetBooleanv", pname, &p, &v);
1074 params[0] = INT_TO_BOOLEAN(d->offset);
1079 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1082 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1085 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1088 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1092 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1096 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1098 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1101 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1104 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1108 for (i = 0; i < v.value_int_n.n; i++)
1109 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1113 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1117 params[0] = ((GLboolean*) p)[0];
1121 m = *(GLmatrix **) p;
1122 for (i = 0; i < 16; i++)
1123 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1127 m = *(GLmatrix **) p;
1128 for (i = 0; i < 16; i++)
1129 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1140 shift = d->type - TYPE_BIT_0;
1141 params[0] = (*(GLbitfield *) p >> shift) & 1;
1147 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1149 const struct value_desc *d;
1154 GET_CURRENT_CONTEXT(ctx);
1156 ASSERT_OUTSIDE_BEGIN_END(ctx);
1158 d = find_value("glGetFloatv", pname, &p, &v);
1163 params[0] = (GLfloat) d->offset;
1168 params[3] = ((GLfloat *) p)[3];
1171 params[2] = ((GLfloat *) p)[2];
1174 params[1] = ((GLfloat *) p)[1];
1177 params[0] = ((GLfloat *) p)[0];
1181 params[0] = ((GLdouble *) p)[0];
1185 params[3] = (GLfloat) (((GLint *) p)[3]);
1187 params[2] = (GLfloat) (((GLint *) p)[2]);
1190 params[1] = (GLfloat) (((GLint *) p)[1]);
1193 params[0] = (GLfloat) (((GLint *) p)[0]);
1197 for (i = 0; i < v.value_int_n.n; i++)
1198 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1202 params[0] = ((GLint64 *) p)[0];
1206 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1210 m = *(GLmatrix **) p;
1211 for (i = 0; i < 16; i++)
1212 params[i] = m->m[i];
1216 m = *(GLmatrix **) p;
1217 for (i = 0; i < 16; i++)
1218 params[i] = m->m[transpose[i]];
1229 shift = d->type - TYPE_BIT_0;
1230 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1236 _mesa_GetIntegerv(GLenum pname, GLint *params)
1238 const struct value_desc *d;
1243 GET_CURRENT_CONTEXT(ctx);
1245 ASSERT_OUTSIDE_BEGIN_END(ctx);
1247 d = find_value("glGetIntegerv", pname, &p, &v);
1252 params[0] = d->offset;
1256 params[3] = IROUND(((GLfloat *) p)[3]);
1258 params[2] = IROUND(((GLfloat *) p)[2]);
1260 params[1] = IROUND(((GLfloat *) p)[1]);
1262 params[0] = IROUND(((GLfloat *) p)[0]);
1266 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1268 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1270 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1272 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1276 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1280 params[3] = ((GLint *) p)[3];
1282 params[2] = ((GLint *) p)[2];
1285 params[1] = ((GLint *) p)[1];
1288 params[0] = ((GLint *) p)[0];
1292 for (i = 0; i < v.value_int_n.n; i++)
1293 params[i] = v.value_int_n.ints[i];
1297 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1301 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1305 m = *(GLmatrix **) p;
1306 for (i = 0; i < 16; i++)
1307 params[i] = FLOAT_TO_INT(m->m[i]);
1311 m = *(GLmatrix **) p;
1312 for (i = 0; i < 16; i++)
1313 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1324 shift = d->type - TYPE_BIT_0;
1325 params[0] = (*(GLbitfield *) p >> shift) & 1;
1331 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1333 const struct value_desc *d;
1338 GET_CURRENT_CONTEXT(ctx);
1340 ASSERT_OUTSIDE_BEGIN_END(ctx);
1342 d = find_value("glGetInteger64v", pname, &p, &v);
1347 params[0] = d->offset;
1351 params[3] = IROUND64(((GLfloat *) p)[3]);
1353 params[2] = IROUND64(((GLfloat *) p)[2]);
1355 params[1] = IROUND64(((GLfloat *) p)[1]);
1357 params[0] = IROUND64(((GLfloat *) p)[0]);
1361 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1363 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1365 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1367 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1371 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1375 params[3] = ((GLint *) p)[3];
1377 params[2] = ((GLint *) p)[2];
1380 params[1] = ((GLint *) p)[1];
1383 params[0] = ((GLint *) p)[0];
1387 for (i = 0; i < v.value_int_n.n; i++)
1388 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1392 params[0] = ((GLint64 *) p)[0];
1396 params[0] = ((GLboolean*) p)[0];
1400 m = *(GLmatrix **) p;
1401 for (i = 0; i < 16; i++)
1402 params[i] = FLOAT_TO_INT64(m->m[i]);
1406 m = *(GLmatrix **) p;
1407 for (i = 0; i < 16; i++)
1408 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1419 shift = d->type - TYPE_BIT_0;
1420 params[0] = (*(GLbitfield *) p >> shift) & 1;
1426 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1428 const struct value_desc *d;
1433 GET_CURRENT_CONTEXT(ctx);
1435 ASSERT_OUTSIDE_BEGIN_END(ctx);
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] = ((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, int 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)
1600 v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
1603 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1604 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1606 if (!ctx->Extensions.EXT_transform_feedback)
1608 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1611 case GL_UNIFORM_BUFFER_BINDING:
1612 if (index >= ctx->Const.MaxUniformBufferBindings)
1614 if (!ctx->Extensions.ARB_uniform_buffer_object)
1616 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1619 case GL_UNIFORM_BUFFER_START:
1620 if (index >= ctx->Const.MaxUniformBufferBindings)
1622 if (!ctx->Extensions.ARB_uniform_buffer_object)
1624 v->value_int = ctx->UniformBufferBindings[index].Offset;
1627 case GL_UNIFORM_BUFFER_SIZE:
1628 if (index >= ctx->Const.MaxUniformBufferBindings)
1630 if (!ctx->Extensions.ARB_uniform_buffer_object)
1632 v->value_int = ctx->UniformBufferBindings[index].Size;
1637 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1638 _mesa_lookup_enum_by_nr(pname));
1639 return TYPE_INVALID;
1641 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1642 _mesa_lookup_enum_by_nr(pname));
1643 return TYPE_INVALID;
1647 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
1650 enum value_type type =
1651 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1655 params[0] = INT_TO_BOOLEAN(v.value_int);
1658 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1659 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1660 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1661 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1664 params[0] = INT64_TO_BOOLEAN(v.value_int);
1667 ; /* nothing - GL error was recorded */
1672 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
1675 enum value_type type =
1676 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1680 params[0] = v.value_int;
1683 params[0] = v.value_int_4[0];
1684 params[1] = v.value_int_4[1];
1685 params[2] = v.value_int_4[2];
1686 params[3] = v.value_int_4[3];
1689 params[0] = INT64_TO_INT(v.value_int);
1692 ; /* nothing - GL error was recorded */
1697 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1700 enum value_type type =
1701 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1705 params[0] = v.value_int;
1708 params[0] = v.value_int_4[0];
1709 params[1] = v.value_int_4[1];
1710 params[2] = v.value_int_4[2];
1711 params[3] = v.value_int_4[3];
1714 params[0] = v.value_int;
1717 ; /* 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);