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)
119 enum value_location {
135 EXTRA_NEW_FRAG_CLAMP,
136 EXTRA_VALID_DRAW_BUFFER,
137 EXTRA_VALID_TEXTURE_UNIT,
138 EXTRA_VALID_CLIP_DISTANCE,
143 #define NO_EXTRA NULL
148 GLubyte location; /**< enum value_location */
149 GLubyte type; /**< enum value_type */
156 GLfloat value_float_4[4];
157 GLmatrix *value_matrix;
159 GLint value_int_4[4];
163 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
167 GLboolean value_bool;
170 #define BUFFER_FIELD(field, type) \
171 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
172 #define CONTEXT_FIELD(field, type) \
173 LOC_CONTEXT, type, offsetof(struct gl_context, field)
174 #define ARRAY_FIELD(field, type) \
175 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
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 #define API_OPENGL_BIT (1 << API_OPENGL)
390 #define API_OPENGLES_BIT (1 << API_OPENGLES)
391 #define API_OPENGLES2_BIT (1 << API_OPENGLES2)
392 #define API_OPENGL_CORE_BIT (1 << API_OPENGL_CORE)
394 /* This is the big table describing all the enums we accept in
395 * glGet*v(). The table is partitioned into six parts: enums
396 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
397 * between OpenGL and GLES, enums exclusive to GLES, etc for the
398 * remaining combinations. To look up the enums valid in a given API
399 * we will use a hash table specific to that API. These tables are in
400 * turn generated at build time and included through get_hash.h.
401 * The different sections are guarded by #if FEATURE_GL etc to make
402 * sure we only compile in the enums we may need. */
404 #include "get_hash.h"
406 /* All we need now is a way to look up the value struct from the enum.
407 * The code generated by gcc for the old generated big switch
408 * statement is a big, balanced, open coded if/else tree, essentially
409 * an unrolled binary search. It would be natural to sort the new
410 * enum table and use bsearch(), but we will use a read-only hash
411 * table instead. bsearch() has a nice guaranteed worst case
412 * performance, but we're also guaranteed to hit that worst case
413 * (log2(n) iterations) for about half the enums. Instead, using an
414 * open addressing hash table, we can find the enum on the first try
415 * for 80% of the enums, 1 collision for 10% and never more than 5
416 * collisions for any enum (typical numbers). And the code is very
417 * simple, even though it feels a little magic. */
421 print_table_stats(int api)
423 int i, j, collisions[11], count, hash, mask;
424 const struct value_desc *d;
425 const char *api_names[] = {
427 [API_OPENGL_CORE] = "GL_CORE",
428 [API_OPENGLES] = "GLES",
429 [API_OPENGLES2] = "GLES2",
431 const char *api_name;
433 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
435 mask = Elements(table(api)) - 1;
436 memset(collisions, 0, sizeof collisions);
438 for (i = 0; i < Elements(table(api)); i++) {
442 d = &values[table(api)[i]];
443 hash = (d->pname * prime_factor);
446 if (values[table(api)[hash & mask]].pname == d->pname)
458 printf("number of enums for %s: %d (total %ld)\n",
459 api_name, count, Elements(values));
460 for (i = 0; i < Elements(collisions) - 1; i++)
461 if (collisions[i] > 0)
462 printf(" %d enums with %d %scollisions\n",
463 collisions[i], i, i == 10 ? "or more " : "");
468 * Initialize the enum hash for a given API
470 * This is called from one_time_init() to insert the enum values that
471 * are valid for the API in question into the enum hash table.
473 * \param the current context, for determining the API in question
475 void _mesa_init_get_hash(struct gl_context *ctx)
483 * Handle irregular enums
485 * Some values don't conform to the "well-known type at context
486 * pointer + offset" pattern, so we have this function to catch all
487 * the corner cases. Typically, it's a computed value or a one-off
488 * pointer to a custom struct or something.
490 * In this case we can't return a pointer to the value, so we'll have
491 * to use the temporary variable 'v' declared back in the calling
492 * glGet*v() function to store the result.
494 * \param ctx the current context
495 * \param d the struct value_desc that describes the enum
496 * \param v pointer to the tmp declared in the calling glGet*v() function
499 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
501 struct gl_buffer_object **buffer_obj;
502 struct gl_client_array *array;
506 case GL_MAJOR_VERSION:
507 v->value_int = ctx->Version / 10;
509 case GL_MINOR_VERSION:
510 v->value_int = ctx->Version % 10;
516 case GL_TEXTURE_1D_ARRAY_EXT:
517 case GL_TEXTURE_2D_ARRAY_EXT:
518 case GL_TEXTURE_CUBE_MAP_ARB:
519 case GL_TEXTURE_RECTANGLE_NV:
520 case GL_TEXTURE_EXTERNAL_OES:
521 v->value_bool = _mesa_IsEnabled(d->pname);
524 case GL_LINE_STIPPLE_PATTERN:
525 /* This is the only GLushort, special case it here by promoting
526 * to an int rather than introducing a new type. */
527 v->value_int = ctx->Line.StipplePattern;
530 case GL_CURRENT_RASTER_TEXTURE_COORDS:
531 unit = ctx->Texture.CurrentUnit;
532 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
533 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
534 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
535 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
538 case GL_CURRENT_TEXTURE_COORDS:
539 unit = ctx->Texture.CurrentUnit;
540 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
541 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
542 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
543 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
546 case GL_COLOR_WRITEMASK:
547 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
548 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
549 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
550 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
554 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
558 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
561 case GL_MAP2_GRID_DOMAIN:
562 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
563 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
564 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
565 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
568 case GL_TEXTURE_STACK_DEPTH:
569 unit = ctx->Texture.CurrentUnit;
570 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
572 case GL_TEXTURE_MATRIX:
573 unit = ctx->Texture.CurrentUnit;
574 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
577 case GL_TEXTURE_COORD_ARRAY:
578 case GL_TEXTURE_COORD_ARRAY_SIZE:
579 case GL_TEXTURE_COORD_ARRAY_TYPE:
580 case GL_TEXTURE_COORD_ARRAY_STRIDE:
581 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
582 v->value_int = *(GLuint *) ((char *) array + d->offset);
585 case GL_ACTIVE_TEXTURE_ARB:
586 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
588 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
589 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
592 case GL_MODELVIEW_STACK_DEPTH:
593 case GL_PROJECTION_STACK_DEPTH:
594 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
597 case GL_MAX_TEXTURE_SIZE:
598 case GL_MAX_3D_TEXTURE_SIZE:
599 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
600 p = (GLuint *) ((char *) ctx + d->offset);
601 v->value_int = 1 << (*p - 1);
605 v->value_int_4[0] = ctx->Scissor.X;
606 v->value_int_4[1] = ctx->Scissor.Y;
607 v->value_int_4[2] = ctx->Scissor.Width;
608 v->value_int_4[3] = ctx->Scissor.Height;
613 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
616 if (!ctx->CompileFlag)
618 else if (ctx->ExecuteFlag)
619 v->value_enum = GL_COMPILE_AND_EXECUTE;
621 v->value_enum = GL_COMPILE;
625 v->value_int_4[0] = ctx->Viewport.X;
626 v->value_int_4[1] = ctx->Viewport.Y;
627 v->value_int_4[2] = ctx->Viewport.Width;
628 v->value_int_4[3] = ctx->Viewport.Height;
631 case GL_ACTIVE_STENCIL_FACE_EXT:
632 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
635 case GL_STENCIL_FAIL:
636 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
638 case GL_STENCIL_FUNC:
639 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
641 case GL_STENCIL_PASS_DEPTH_FAIL:
642 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
644 case GL_STENCIL_PASS_DEPTH_PASS:
645 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
648 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
650 case GL_STENCIL_VALUE_MASK:
651 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
653 case GL_STENCIL_WRITEMASK:
654 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
657 case GL_NUM_EXTENSIONS:
658 v->value_int = _mesa_get_extension_count(ctx);
661 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
662 v->value_int = _mesa_get_color_read_type(ctx);
664 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
665 v->value_int = _mesa_get_color_read_format(ctx);
668 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
669 v->value_int = ctx->CurrentStack->Depth + 1;
671 case GL_CURRENT_MATRIX_ARB:
672 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
673 v->value_matrix = ctx->CurrentStack->Top;
676 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
677 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
679 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
681 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
682 ASSERT(v->value_int_n.n <= 100);
685 case GL_MAX_VARYING_FLOATS_ARB:
686 v->value_int = ctx->Const.MaxVarying * 4;
689 /* Various object names */
691 case GL_TEXTURE_BINDING_1D:
692 case GL_TEXTURE_BINDING_2D:
693 case GL_TEXTURE_BINDING_3D:
694 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
695 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
696 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
697 case GL_TEXTURE_BINDING_RECTANGLE_NV:
698 case GL_TEXTURE_BINDING_EXTERNAL_OES:
699 unit = ctx->Texture.CurrentUnit;
701 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
704 /* GL_ARB_vertex_buffer_object */
705 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
706 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
707 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
708 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
709 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
710 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
711 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
712 buffer_obj = (struct gl_buffer_object **)
713 ((char *) ctx->Array.ArrayObj + d->offset);
714 v->value_int = (*buffer_obj)->Name;
716 case GL_ARRAY_BUFFER_BINDING_ARB:
717 v->value_int = ctx->Array.ArrayBufferObj->Name;
719 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
721 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
723 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
724 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
727 /* ARB_copy_buffer */
728 case GL_COPY_READ_BUFFER:
729 v->value_int = ctx->CopyReadBuffer->Name;
731 case GL_COPY_WRITE_BUFFER:
732 v->value_int = ctx->CopyWriteBuffer->Name;
735 case GL_FRAGMENT_PROGRAM_BINDING_NV:
737 ctx->FragmentProgram.Current ? ctx->FragmentProgram.Current->Base.Id : 0;
739 case GL_VERTEX_PROGRAM_BINDING_NV:
741 ctx->VertexProgram.Current ? ctx->VertexProgram.Current->Base.Id : 0;
743 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
744 v->value_int = ctx->Pack.BufferObj->Name;
746 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
747 v->value_int = ctx->Unpack.BufferObj->Name;
749 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
750 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
752 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
753 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
755 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
756 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
758 case GL_TRANSFORM_FEEDBACK_BINDING:
759 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
761 case GL_CURRENT_PROGRAM:
763 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
765 case GL_READ_FRAMEBUFFER_BINDING_EXT:
766 v->value_int = ctx->ReadBuffer->Name;
768 case GL_RENDERBUFFER_BINDING_EXT:
770 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
772 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
773 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
777 if(ctx->Color._ClampFragmentColor)
778 COPY_4FV(v->value_float_4, ctx->Fog.Color);
780 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
782 case GL_COLOR_CLEAR_VALUE:
783 if(ctx->Color._ClampFragmentColor) {
784 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
785 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
786 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
787 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
789 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
791 case GL_BLEND_COLOR_EXT:
792 if(ctx->Color._ClampFragmentColor)
793 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
795 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
797 case GL_ALPHA_TEST_REF:
798 if(ctx->Color._ClampFragmentColor)
799 v->value_float = ctx->Color.AlphaRef;
801 v->value_float = ctx->Color.AlphaRefUnclamped;
803 case GL_MAX_VERTEX_UNIFORM_VECTORS:
804 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
807 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
808 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
811 /* GL_ARB_texture_buffer_object */
812 case GL_TEXTURE_BUFFER_ARB:
813 v->value_int = ctx->Texture.BufferObject->Name;
815 case GL_TEXTURE_BINDING_BUFFER_ARB:
816 unit = ctx->Texture.CurrentUnit;
818 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
820 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
822 struct gl_buffer_object *buf =
823 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
824 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
825 v->value_int = buf ? buf->Name : 0;
828 case GL_TEXTURE_BUFFER_FORMAT_ARB:
829 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
830 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
833 /* GL_ARB_sampler_objects */
834 case GL_SAMPLER_BINDING:
836 struct gl_sampler_object *samp =
837 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
838 v->value_int = samp ? samp->Name : 0;
841 /* GL_ARB_uniform_buffer_object */
842 case GL_UNIFORM_BUFFER_BINDING:
843 v->value_int = ctx->UniformBuffer->Name;
845 /* GL_ARB_timer_query */
847 if (ctx->Driver.GetTimestamp) {
848 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
851 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
858 * Check extra constraints on a struct value_desc descriptor
860 * If a struct value_desc has a non-NULL extra pointer, it means that
861 * there are a number of extra constraints to check or actions to
862 * perform. The extras is just an integer array where each integer
863 * encode different constraints or actions.
865 * \param ctx current context
866 * \param func name of calling glGet*v() function for error reporting
867 * \param d the struct value_desc that has the extra constraints
869 * \return GL_FALSE if one of the constraints was not satisfied,
873 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
875 const GLuint version = ctx->Version;
881 for (e = d->extra; *e != EXTRA_END; e++)
883 case EXTRA_VERSION_30:
889 case EXTRA_VERSION_31:
895 case EXTRA_VERSION_32:
901 case EXTRA_NEW_FRAG_CLAMP:
902 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
903 _mesa_update_state(ctx);
906 if (ctx->API == API_OPENGLES2) {
912 if (_mesa_is_desktop_gl(ctx)) {
917 case EXTRA_NEW_BUFFERS:
918 if (ctx->NewState & _NEW_BUFFERS)
919 _mesa_update_state(ctx);
921 case EXTRA_FLUSH_CURRENT:
922 FLUSH_CURRENT(ctx, 0);
924 case EXTRA_VALID_DRAW_BUFFER:
925 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
926 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
927 func, d->pname - GL_DRAW_BUFFER0_ARB);
931 case EXTRA_VALID_TEXTURE_UNIT:
932 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
933 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
934 func, ctx->Texture.CurrentUnit);
938 case EXTRA_VALID_CLIP_DISTANCE:
939 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
940 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
941 func, d->pname - GL_CLIP_DISTANCE0);
946 if (ctx->Const.GLSLVersion >= 130) {
953 default: /* *e is a offset into the extension struct */
955 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
960 if (total > 0 && enabled == 0) {
961 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
962 _mesa_lookup_enum_by_nr(d->pname));
969 static const struct value_desc error_value =
970 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
973 * Find the struct value_desc corresponding to the enum 'pname'.
975 * We hash the enum value to get an index into the 'table' array,
976 * which holds the index in the 'values' array of struct value_desc.
977 * Once we've found the entry, we do the extra checks, if any, then
978 * look up the value and return a pointer to it.
980 * If the value has to be computed (for example, it's the result of a
981 * function call or we need to add 1 to it), we use the tmp 'v' to
984 * \param func name of glGet*v() func for error reporting
985 * \param pname the enum value we're looking up
986 * \param p is were we return the pointer to the value
987 * \param v a tmp union value variable in the calling glGet*v() function
989 * \return the struct value_desc corresponding to the enum or a struct
990 * value_desc of TYPE_INVALID if not found. This lets the calling
991 * glGet*v() function jump right into a switch statement and
992 * handle errors there instead of having to check for NULL.
994 static const struct value_desc *
995 find_value(const char *func, GLenum pname, void **p, union value *v)
997 GET_CURRENT_CONTEXT(ctx);
998 struct gl_texture_unit *unit;
1000 const struct value_desc *d;
1004 mask = Elements(table(api)) - 1;
1005 hash = (pname * prime_factor);
1007 int idx = table(api)[hash & mask];
1009 /* If the enum isn't valid, the hash walk ends with index 0,
1010 * pointing to the first entry of values[] which doesn't hold
1011 * any valid enum. */
1012 if (unlikely(idx == 0)) {
1013 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1014 _mesa_lookup_enum_by_nr(pname));
1015 return &error_value;
1019 if (likely(d->pname == pname))
1025 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1026 return &error_value;
1028 switch (d->location) {
1030 *p = ((char *) ctx->DrawBuffer + d->offset);
1033 *p = ((char *) ctx + d->offset);
1036 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1039 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1040 *p = ((char *) unit + d->offset);
1043 find_custom_value(ctx, d, v);
1051 /* silence warning */
1052 return &error_value;
1055 static const int transpose[] = {
1063 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1065 const struct value_desc *d;
1070 GET_CURRENT_CONTEXT(ctx);
1072 ASSERT_OUTSIDE_BEGIN_END(ctx);
1074 d = find_value("glGetBooleanv", pname, &p, &v);
1079 params[0] = INT_TO_BOOLEAN(d->offset);
1084 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1087 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1090 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1093 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1097 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1101 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1103 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1106 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1109 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1113 for (i = 0; i < v.value_int_n.n; i++)
1114 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1118 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1122 params[0] = ((GLboolean*) p)[0];
1126 m = *(GLmatrix **) p;
1127 for (i = 0; i < 16; i++)
1128 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1132 m = *(GLmatrix **) p;
1133 for (i = 0; i < 16; i++)
1134 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1145 shift = d->type - TYPE_BIT_0;
1146 params[0] = (*(GLbitfield *) p >> shift) & 1;
1152 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1154 const struct value_desc *d;
1159 GET_CURRENT_CONTEXT(ctx);
1161 ASSERT_OUTSIDE_BEGIN_END(ctx);
1163 d = find_value("glGetFloatv", pname, &p, &v);
1168 params[0] = (GLfloat) d->offset;
1173 params[3] = ((GLfloat *) p)[3];
1176 params[2] = ((GLfloat *) p)[2];
1179 params[1] = ((GLfloat *) p)[1];
1182 params[0] = ((GLfloat *) p)[0];
1186 params[0] = ((GLdouble *) p)[0];
1190 params[3] = (GLfloat) (((GLint *) p)[3]);
1192 params[2] = (GLfloat) (((GLint *) p)[2]);
1195 params[1] = (GLfloat) (((GLint *) p)[1]);
1198 params[0] = (GLfloat) (((GLint *) p)[0]);
1202 for (i = 0; i < v.value_int_n.n; i++)
1203 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1207 params[0] = ((GLint64 *) p)[0];
1211 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1215 m = *(GLmatrix **) p;
1216 for (i = 0; i < 16; i++)
1217 params[i] = m->m[i];
1221 m = *(GLmatrix **) p;
1222 for (i = 0; i < 16; i++)
1223 params[i] = m->m[transpose[i]];
1234 shift = d->type - TYPE_BIT_0;
1235 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1241 _mesa_GetIntegerv(GLenum pname, GLint *params)
1243 const struct value_desc *d;
1248 GET_CURRENT_CONTEXT(ctx);
1250 ASSERT_OUTSIDE_BEGIN_END(ctx);
1252 d = find_value("glGetIntegerv", pname, &p, &v);
1257 params[0] = d->offset;
1261 params[3] = IROUND(((GLfloat *) p)[3]);
1263 params[2] = IROUND(((GLfloat *) p)[2]);
1265 params[1] = IROUND(((GLfloat *) p)[1]);
1267 params[0] = IROUND(((GLfloat *) p)[0]);
1271 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1273 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1275 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1277 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1281 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1285 params[3] = ((GLint *) p)[3];
1287 params[2] = ((GLint *) p)[2];
1290 params[1] = ((GLint *) p)[1];
1293 params[0] = ((GLint *) p)[0];
1297 for (i = 0; i < v.value_int_n.n; i++)
1298 params[i] = v.value_int_n.ints[i];
1302 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1306 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1310 m = *(GLmatrix **) p;
1311 for (i = 0; i < 16; i++)
1312 params[i] = FLOAT_TO_INT(m->m[i]);
1316 m = *(GLmatrix **) p;
1317 for (i = 0; i < 16; i++)
1318 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1329 shift = d->type - TYPE_BIT_0;
1330 params[0] = (*(GLbitfield *) p >> shift) & 1;
1336 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1338 const struct value_desc *d;
1343 GET_CURRENT_CONTEXT(ctx);
1345 ASSERT_OUTSIDE_BEGIN_END(ctx);
1347 d = find_value("glGetInteger64v", pname, &p, &v);
1352 params[0] = d->offset;
1356 params[3] = IROUND64(((GLfloat *) p)[3]);
1358 params[2] = IROUND64(((GLfloat *) p)[2]);
1360 params[1] = IROUND64(((GLfloat *) p)[1]);
1362 params[0] = IROUND64(((GLfloat *) p)[0]);
1366 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1368 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1370 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1372 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1376 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1380 params[3] = ((GLint *) p)[3];
1382 params[2] = ((GLint *) p)[2];
1385 params[1] = ((GLint *) p)[1];
1388 params[0] = ((GLint *) p)[0];
1392 for (i = 0; i < v.value_int_n.n; i++)
1393 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1397 params[0] = ((GLint64 *) p)[0];
1401 params[0] = ((GLboolean*) p)[0];
1405 m = *(GLmatrix **) p;
1406 for (i = 0; i < 16; i++)
1407 params[i] = FLOAT_TO_INT64(m->m[i]);
1411 m = *(GLmatrix **) p;
1412 for (i = 0; i < 16; i++)
1413 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1424 shift = d->type - TYPE_BIT_0;
1425 params[0] = (*(GLbitfield *) p >> shift) & 1;
1431 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1433 const struct value_desc *d;
1438 GET_CURRENT_CONTEXT(ctx);
1440 ASSERT_OUTSIDE_BEGIN_END(ctx);
1442 d = find_value("glGetDoublev", pname, &p, &v);
1447 params[0] = d->offset;
1452 params[3] = ((GLfloat *) p)[3];
1455 params[2] = ((GLfloat *) p)[2];
1458 params[1] = ((GLfloat *) p)[1];
1461 params[0] = ((GLfloat *) p)[0];
1465 params[0] = ((GLdouble *) p)[0];
1469 params[3] = ((GLint *) p)[3];
1471 params[2] = ((GLint *) p)[2];
1474 params[1] = ((GLint *) p)[1];
1477 params[0] = ((GLint *) p)[0];
1481 for (i = 0; i < v.value_int_n.n; i++)
1482 params[i] = v.value_int_n.ints[i];
1486 params[0] = ((GLint64 *) p)[0];
1490 params[0] = *(GLboolean*) p;
1494 m = *(GLmatrix **) p;
1495 for (i = 0; i < 16; i++)
1496 params[i] = m->m[i];
1500 m = *(GLmatrix **) p;
1501 for (i = 0; i < 16; i++)
1502 params[i] = m->m[transpose[i]];
1513 shift = d->type - TYPE_BIT_0;
1514 params[0] = (*(GLbitfield *) p >> shift) & 1;
1519 static enum value_type
1520 find_value_indexed(const char *func, GLenum pname, int index, union value *v)
1522 GET_CURRENT_CONTEXT(ctx);
1527 if (index >= ctx->Const.MaxDrawBuffers)
1529 if (!ctx->Extensions.EXT_draw_buffers2)
1531 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1536 case GL_BLEND_SRC_RGB:
1537 if (index >= ctx->Const.MaxDrawBuffers)
1539 if (!ctx->Extensions.ARB_draw_buffers_blend)
1541 v->value_int = ctx->Color.Blend[index].SrcRGB;
1543 case GL_BLEND_SRC_ALPHA:
1544 if (index >= ctx->Const.MaxDrawBuffers)
1546 if (!ctx->Extensions.ARB_draw_buffers_blend)
1548 v->value_int = ctx->Color.Blend[index].SrcA;
1552 case GL_BLEND_DST_RGB:
1553 if (index >= ctx->Const.MaxDrawBuffers)
1555 if (!ctx->Extensions.ARB_draw_buffers_blend)
1557 v->value_int = ctx->Color.Blend[index].DstRGB;
1559 case GL_BLEND_DST_ALPHA:
1560 if (index >= ctx->Const.MaxDrawBuffers)
1562 if (!ctx->Extensions.ARB_draw_buffers_blend)
1564 v->value_int = ctx->Color.Blend[index].DstA;
1566 case GL_BLEND_EQUATION_RGB:
1567 if (index >= ctx->Const.MaxDrawBuffers)
1569 if (!ctx->Extensions.ARB_draw_buffers_blend)
1571 v->value_int = ctx->Color.Blend[index].EquationRGB;
1573 case GL_BLEND_EQUATION_ALPHA:
1574 if (index >= ctx->Const.MaxDrawBuffers)
1576 if (!ctx->Extensions.ARB_draw_buffers_blend)
1578 v->value_int = ctx->Color.Blend[index].EquationA;
1581 case GL_COLOR_WRITEMASK:
1582 if (index >= ctx->Const.MaxDrawBuffers)
1584 if (!ctx->Extensions.EXT_draw_buffers2)
1586 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1587 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1588 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1589 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1592 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1593 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1595 if (!ctx->Extensions.EXT_transform_feedback)
1597 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1600 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1601 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1603 if (!ctx->Extensions.EXT_transform_feedback)
1605 v->value_int64 = ctx->TransformFeedback.CurrentObject->Size[index];
1608 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1609 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1611 if (!ctx->Extensions.EXT_transform_feedback)
1613 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1616 case GL_UNIFORM_BUFFER_BINDING:
1617 if (index >= ctx->Const.MaxUniformBufferBindings)
1619 if (!ctx->Extensions.ARB_uniform_buffer_object)
1621 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1624 case GL_UNIFORM_BUFFER_START:
1625 if (index >= ctx->Const.MaxUniformBufferBindings)
1627 if (!ctx->Extensions.ARB_uniform_buffer_object)
1629 v->value_int = ctx->UniformBufferBindings[index].Offset;
1632 case GL_UNIFORM_BUFFER_SIZE:
1633 if (index >= ctx->Const.MaxUniformBufferBindings)
1635 if (!ctx->Extensions.ARB_uniform_buffer_object)
1637 v->value_int = ctx->UniformBufferBindings[index].Size;
1642 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1643 _mesa_lookup_enum_by_nr(pname));
1644 return TYPE_INVALID;
1646 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1647 _mesa_lookup_enum_by_nr(pname));
1648 return TYPE_INVALID;
1652 _mesa_GetBooleanIndexedv( GLenum pname, GLuint index, GLboolean *params )
1655 enum value_type type =
1656 find_value_indexed("glGetBooleanIndexedv", pname, index, &v);
1660 params[0] = INT_TO_BOOLEAN(v.value_int);
1663 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1664 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1665 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1666 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1669 params[0] = INT64_TO_BOOLEAN(v.value_int);
1672 ; /* nothing - GL error was recorded */
1677 _mesa_GetIntegerIndexedv( GLenum pname, GLuint index, GLint *params )
1680 enum value_type type =
1681 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1685 params[0] = v.value_int;
1688 params[0] = v.value_int_4[0];
1689 params[1] = v.value_int_4[1];
1690 params[2] = v.value_int_4[2];
1691 params[3] = v.value_int_4[3];
1694 params[0] = INT64_TO_INT(v.value_int);
1697 ; /* nothing - GL error was recorded */
1702 _mesa_GetInteger64Indexedv( GLenum pname, GLuint index, GLint64 *params )
1705 enum value_type type =
1706 find_value_indexed("glGetIntegerIndexedv", pname, index, &v);
1710 params[0] = v.value_int;
1713 params[0] = v.value_int_4[0];
1714 params[1] = v.value_int_4[1];
1715 params[2] = v.value_int_4[2];
1716 params[3] = v.value_int_4[3];
1719 params[0] = v.value_int;
1722 ; /* nothing - GL error was recorded */
1728 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1730 const struct value_desc *d;
1736 d = find_value("glGetDoublev", pname, &p, &v);
1741 params[0] = INT_TO_FIXED(d->offset);
1746 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1749 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1752 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1755 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1759 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1763 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1765 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1768 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1771 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1775 for (i = 0; i < v.value_int_n.n; i++)
1776 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1780 params[0] = ((GLint64 *) p)[0];
1784 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1788 m = *(GLmatrix **) p;
1789 for (i = 0; i < 16; i++)
1790 params[i] = FLOAT_TO_FIXED(m->m[i]);
1794 m = *(GLmatrix **) p;
1795 for (i = 0; i < 16; i++)
1796 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1807 shift = d->type - TYPE_BIT_0;
1808 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);