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 * THE AUTHORS 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>
30 #include "extensions.h"
35 #include "texcompress.h"
36 #include "framebuffer.h"
37 #include "samplerobj.h"
39 /* This is a table driven implemetation of the glGet*v() functions.
40 * The basic idea is that most getters just look up an int somewhere
41 * in struct gl_context and then convert it to a bool or float according to
42 * which of glGetIntegerv() glGetBooleanv() etc is being called.
43 * Instead of generating code to do this, we can just record the enum
44 * value and the offset into struct gl_context in an array of structs. Then
45 * in glGet*(), we lookup the struct for the enum in question, and use
46 * the offset to get the int we need.
48 * Sometimes we need to look up a float, a boolean, a bit in a
49 * bitfield, a matrix or other types instead, so we need to track the
50 * type of the value in struct gl_context. And sometimes the value isn't in
51 * struct gl_context but in the drawbuffer, the array object, current texture
52 * unit, or maybe it's a computed value. So we need to also track
53 * where or how to find the value. Finally, we sometimes need to
54 * check that one of a number of extensions are enabled, the GL
55 * version or flush or call _mesa_update_state(). This is done by
56 * attaching optional extra information to the value description
57 * struct, it's sort of like an array of opcodes that describe extra
60 * Putting all this together we end up with struct value_desc below,
61 * and with a couple of macros to help, the table of struct value_desc
62 * is about as concise as the specification in the old python script.
65 #define FLOAT_TO_BOOLEAN(X) ( (X) ? GL_TRUE : GL_FALSE )
66 #define FLOAT_TO_FIXED(F) ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \
67 ((F) * 65536.0f < INT_MIN) ? INT_MIN : \
68 (GLint) ((F) * 65536.0f) )
70 #define INT_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
71 #define INT_TO_FIXED(I) ( ((I) > SHRT_MAX) ? INT_MAX : \
72 ((I) < SHRT_MIN) ? INT_MIN : \
73 (GLint) ((I) * 65536) )
75 #define INT64_TO_BOOLEAN(I) ( (I) ? GL_TRUE : GL_FALSE )
76 #define INT64_TO_INT(I) ( (GLint)((I > INT_MAX) ? INT_MAX : ((I < INT_MIN) ? INT_MIN : (I))) )
78 #define BOOLEAN_TO_INT(B) ( (GLint) (B) )
79 #define BOOLEAN_TO_INT64(B) ( (GLint64) (B) )
80 #define BOOLEAN_TO_FLOAT(B) ( (B) ? 1.0F : 0.0F )
81 #define BOOLEAN_TO_FIXED(B) ( (GLint) ((B) ? 1 : 0) << 16 )
83 #define ENUM_TO_INT64(E) ( (GLint64) (E) )
84 #define ENUM_TO_FIXED(E) (E)
119 enum value_location {
137 EXTRA_NEW_FRAG_CLAMP,
138 EXTRA_VALID_DRAW_BUFFER,
139 EXTRA_VALID_TEXTURE_UNIT,
140 EXTRA_VALID_CLIP_DISTANCE,
145 #define NO_EXTRA NULL
150 GLubyte location; /**< enum value_location */
151 GLubyte type; /**< enum value_type */
158 GLfloat value_float_4[4];
159 GLmatrix *value_matrix;
161 GLint value_int_4[4];
165 /* Sigh, see GL_COMPRESSED_TEXTURE_FORMATS_ARB handling */
169 GLboolean value_bool;
172 #define BUFFER_FIELD(field, type) \
173 LOC_BUFFER, type, offsetof(struct gl_framebuffer, field)
174 #define CONTEXT_FIELD(field, type) \
175 LOC_CONTEXT, type, offsetof(struct gl_context, field)
176 #define ARRAY_FIELD(field, type) \
177 LOC_ARRAY, type, offsetof(struct gl_array_object, field)
178 #undef CONST /* already defined through windows.h */
179 #define CONST(value) \
180 LOC_CONTEXT, TYPE_CONST, value
182 #define BUFFER_INT(field) BUFFER_FIELD(field, TYPE_INT)
183 #define BUFFER_ENUM(field) BUFFER_FIELD(field, TYPE_ENUM)
184 #define BUFFER_BOOL(field) BUFFER_FIELD(field, TYPE_BOOLEAN)
186 #define CONTEXT_INT(field) CONTEXT_FIELD(field, TYPE_INT)
187 #define CONTEXT_INT2(field) CONTEXT_FIELD(field, TYPE_INT_2)
188 #define CONTEXT_INT64(field) CONTEXT_FIELD(field, TYPE_INT64)
189 #define CONTEXT_ENUM(field) CONTEXT_FIELD(field, TYPE_ENUM)
190 #define CONTEXT_ENUM2(field) CONTEXT_FIELD(field, TYPE_ENUM_2)
191 #define CONTEXT_BOOL(field) CONTEXT_FIELD(field, TYPE_BOOLEAN)
192 #define CONTEXT_BIT0(field) CONTEXT_FIELD(field, TYPE_BIT_0)
193 #define CONTEXT_BIT1(field) CONTEXT_FIELD(field, TYPE_BIT_1)
194 #define CONTEXT_BIT2(field) CONTEXT_FIELD(field, TYPE_BIT_2)
195 #define CONTEXT_BIT3(field) CONTEXT_FIELD(field, TYPE_BIT_3)
196 #define CONTEXT_BIT4(field) CONTEXT_FIELD(field, TYPE_BIT_4)
197 #define CONTEXT_BIT5(field) CONTEXT_FIELD(field, TYPE_BIT_5)
198 #define CONTEXT_BIT6(field) CONTEXT_FIELD(field, TYPE_BIT_6)
199 #define CONTEXT_BIT7(field) CONTEXT_FIELD(field, TYPE_BIT_7)
200 #define CONTEXT_FLOAT(field) CONTEXT_FIELD(field, TYPE_FLOAT)
201 #define CONTEXT_FLOAT2(field) CONTEXT_FIELD(field, TYPE_FLOAT_2)
202 #define CONTEXT_FLOAT3(field) CONTEXT_FIELD(field, TYPE_FLOAT_3)
203 #define CONTEXT_FLOAT4(field) CONTEXT_FIELD(field, TYPE_FLOAT_4)
204 #define CONTEXT_MATRIX(field) CONTEXT_FIELD(field, TYPE_MATRIX)
205 #define CONTEXT_MATRIX_T(field) CONTEXT_FIELD(field, TYPE_MATRIX_T)
207 #define ARRAY_INT(field) ARRAY_FIELD(field, TYPE_INT)
208 #define ARRAY_ENUM(field) ARRAY_FIELD(field, TYPE_ENUM)
209 #define ARRAY_BOOL(field) ARRAY_FIELD(field, TYPE_BOOLEAN)
212 offsetof(struct gl_extensions, f)
214 #define EXTRA_EXT(e) \
215 static const int extra_##e[] = { \
219 #define EXTRA_EXT2(e1, e2) \
220 static const int extra_##e1##_##e2[] = { \
221 EXT(e1), EXT(e2), EXTRA_END \
224 /* The 'extra' mechanism is a way to specify extra checks (such as
225 * extensions or specific gl versions) or actions (flush current, new
226 * buffers) that we need to do before looking up an enum. We need to
227 * declare them all up front so we can refer to them in the value_desc
230 static const int extra_new_buffers[] = {
235 static const int extra_new_frag_clamp[] = {
236 EXTRA_NEW_FRAG_CLAMP,
240 static const int extra_valid_draw_buffer[] = {
241 EXTRA_VALID_DRAW_BUFFER,
245 static const int extra_valid_texture_unit[] = {
246 EXTRA_VALID_TEXTURE_UNIT,
250 static const int extra_valid_clip_distance[] = {
251 EXTRA_VALID_CLIP_DISTANCE,
255 static const int extra_flush_current_valid_texture_unit[] = {
257 EXTRA_VALID_TEXTURE_UNIT,
261 static const int extra_flush_current[] = {
266 static const int extra_EXT_secondary_color_flush_current[] = {
267 EXT(EXT_secondary_color),
272 static const int extra_EXT_fog_coord_flush_current[] = {
278 static const int extra_EXT_texture_integer[] = {
279 EXT(EXT_texture_integer),
283 static const int extra_EXT_texture_integer_and_new_buffers[] = {
284 EXT(EXT_texture_integer),
289 static const int extra_GLSL_130[] = {
294 static const int extra_texture_buffer_object[] = {
297 EXT(ARB_texture_buffer_object),
301 static const int extra_ARB_transform_feedback2_api_es3[] = {
302 EXT(ARB_transform_feedback2),
307 static const int extra_ARB_uniform_buffer_object_and_geometry_shader[] = {
308 EXT(ARB_uniform_buffer_object),
309 EXT(ARB_geometry_shader4),
313 static const int extra_ARB_ES2_compatibility_api_es2[] = {
314 EXT(ARB_ES2_compatibility),
319 static const int extra_ARB_ES3_compatibility_api_es3[] = {
320 EXT(ARB_ES3_compatibility),
325 static const int extra_EXT_framebuffer_sRGB_and_new_buffers[] = {
326 EXT(EXT_framebuffer_sRGB),
331 EXTRA_EXT(ARB_texture_cube_map);
332 EXTRA_EXT(MESA_texture_array);
333 EXTRA_EXT2(EXT_secondary_color, ARB_vertex_program);
334 EXTRA_EXT(EXT_secondary_color);
335 EXTRA_EXT(EXT_fog_coord);
336 EXTRA_EXT(NV_fog_distance);
337 EXTRA_EXT(EXT_texture_filter_anisotropic);
338 EXTRA_EXT(NV_point_sprite);
339 EXTRA_EXT(NV_texture_rectangle);
340 EXTRA_EXT(EXT_stencil_two_side);
341 EXTRA_EXT(EXT_depth_bounds_test);
342 EXTRA_EXT(ARB_depth_clamp);
343 EXTRA_EXT(ATI_fragment_shader);
344 EXTRA_EXT(EXT_framebuffer_blit);
345 EXTRA_EXT(ARB_shader_objects);
346 EXTRA_EXT(EXT_provoking_vertex);
347 EXTRA_EXT(ARB_fragment_shader);
348 EXTRA_EXT(ARB_fragment_program);
349 EXTRA_EXT2(ARB_framebuffer_object, EXT_framebuffer_multisample);
350 EXTRA_EXT(EXT_framebuffer_object);
351 EXTRA_EXT(ARB_seamless_cube_map);
353 EXTRA_EXT(ARB_vertex_shader);
354 EXTRA_EXT(EXT_transform_feedback);
355 EXTRA_EXT(ARB_transform_feedback3);
356 EXTRA_EXT(EXT_pixel_buffer_object);
357 EXTRA_EXT(ARB_vertex_program);
358 EXTRA_EXT2(NV_point_sprite, ARB_point_sprite);
359 EXTRA_EXT2(ARB_vertex_program, ARB_fragment_program);
360 EXTRA_EXT(ARB_geometry_shader4);
361 EXTRA_EXT(ARB_color_buffer_float);
362 EXTRA_EXT(EXT_framebuffer_sRGB);
363 EXTRA_EXT(OES_EGL_image_external);
364 EXTRA_EXT(ARB_blend_func_extended);
365 EXTRA_EXT(ARB_uniform_buffer_object);
366 EXTRA_EXT(ARB_timer_query);
367 EXTRA_EXT(ARB_map_buffer_alignment);
368 EXTRA_EXT(ARB_texture_cube_map_array);
369 EXTRA_EXT(ARB_texture_buffer_range);
370 EXTRA_EXT(ARB_texture_multisample);
373 extra_ARB_color_buffer_float_or_glcore[] = {
374 EXT(ARB_color_buffer_float),
380 extra_NV_primitive_restart[] = {
381 EXT(NV_primitive_restart),
385 static const int extra_version_30[] = { EXTRA_VERSION_30, EXTRA_END };
386 static const int extra_version_31[] = { EXTRA_VERSION_31, EXTRA_END };
387 static const int extra_version_32[] = { EXTRA_VERSION_32, EXTRA_END };
389 static const int extra_gl30_es3[] = {
396 extra_ARB_vertex_program_api_es2[] = {
397 EXT(ARB_vertex_program),
402 /* The ReadBuffer get token is valid under either full GL or under
403 * GLES2 if the NV_read_buffer extension is available. */
405 extra_NV_read_buffer_api_gl[] = {
411 static const int extra_core_ARB_color_buffer_float_and_new_buffers[] = {
413 EXT(ARB_color_buffer_float),
418 /* This is the big table describing all the enums we accept in
419 * glGet*v(). The table is partitioned into six parts: enums
420 * understood by all GL APIs (OpenGL, GLES and GLES2), enums shared
421 * between OpenGL and GLES, enums exclusive to GLES, etc for the
422 * remaining combinations. To look up the enums valid in a given API
423 * we will use a hash table specific to that API. These tables are in
424 * turn generated at build time and included through get_hash.h.
427 #include "get_hash.h"
429 /* All we need now is a way to look up the value struct from the enum.
430 * The code generated by gcc for the old generated big switch
431 * statement is a big, balanced, open coded if/else tree, essentially
432 * an unrolled binary search. It would be natural to sort the new
433 * enum table and use bsearch(), but we will use a read-only hash
434 * table instead. bsearch() has a nice guaranteed worst case
435 * performance, but we're also guaranteed to hit that worst case
436 * (log2(n) iterations) for about half the enums. Instead, using an
437 * open addressing hash table, we can find the enum on the first try
438 * for 80% of the enums, 1 collision for 10% and never more than 5
439 * collisions for any enum (typical numbers). And the code is very
440 * simple, even though it feels a little magic. */
444 print_table_stats(int api)
446 int i, j, collisions[11], count, hash, mask;
447 const struct value_desc *d;
448 const char *api_names[] = {
449 [API_OPENGL_COMPAT] = "GL",
450 [API_OPENGL_CORE] = "GL_CORE",
451 [API_OPENGLES] = "GLES",
452 [API_OPENGLES2] = "GLES2",
454 const char *api_name;
456 api_name = api < Elements(api_names) ? api_names[api] : "N/A";
458 mask = Elements(table(api)) - 1;
459 memset(collisions, 0, sizeof collisions);
461 for (i = 0; i < Elements(table(api)); i++) {
465 d = &values[table(api)[i]];
466 hash = (d->pname * prime_factor);
469 if (values[table(api)[hash & mask]].pname == d->pname)
481 printf("number of enums for %s: %d (total %ld)\n",
482 api_name, count, Elements(values));
483 for (i = 0; i < Elements(collisions) - 1; i++)
484 if (collisions[i] > 0)
485 printf(" %d enums with %d %scollisions\n",
486 collisions[i], i, i == 10 ? "or more " : "");
491 * Initialize the enum hash for a given API
493 * This is called from one_time_init() to insert the enum values that
494 * are valid for the API in question into the enum hash table.
496 * \param the current context, for determining the API in question
498 void _mesa_init_get_hash(struct gl_context *ctx)
506 * Handle irregular enums
508 * Some values don't conform to the "well-known type at context
509 * pointer + offset" pattern, so we have this function to catch all
510 * the corner cases. Typically, it's a computed value or a one-off
511 * pointer to a custom struct or something.
513 * In this case we can't return a pointer to the value, so we'll have
514 * to use the temporary variable 'v' declared back in the calling
515 * glGet*v() function to store the result.
517 * \param ctx the current context
518 * \param d the struct value_desc that describes the enum
519 * \param v pointer to the tmp declared in the calling glGet*v() function
522 find_custom_value(struct gl_context *ctx, const struct value_desc *d, union value *v)
524 struct gl_buffer_object **buffer_obj;
525 struct gl_client_array *array;
529 case GL_MAJOR_VERSION:
530 v->value_int = ctx->Version / 10;
532 case GL_MINOR_VERSION:
533 v->value_int = ctx->Version % 10;
539 case GL_TEXTURE_1D_ARRAY_EXT:
540 case GL_TEXTURE_2D_ARRAY_EXT:
541 case GL_TEXTURE_CUBE_MAP_ARB:
542 case GL_TEXTURE_RECTANGLE_NV:
543 case GL_TEXTURE_EXTERNAL_OES:
544 v->value_bool = _mesa_IsEnabled(d->pname);
547 case GL_LINE_STIPPLE_PATTERN:
548 /* This is the only GLushort, special case it here by promoting
549 * to an int rather than introducing a new type. */
550 v->value_int = ctx->Line.StipplePattern;
553 case GL_CURRENT_RASTER_TEXTURE_COORDS:
554 unit = ctx->Texture.CurrentUnit;
555 v->value_float_4[0] = ctx->Current.RasterTexCoords[unit][0];
556 v->value_float_4[1] = ctx->Current.RasterTexCoords[unit][1];
557 v->value_float_4[2] = ctx->Current.RasterTexCoords[unit][2];
558 v->value_float_4[3] = ctx->Current.RasterTexCoords[unit][3];
561 case GL_CURRENT_TEXTURE_COORDS:
562 unit = ctx->Texture.CurrentUnit;
563 v->value_float_4[0] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][0];
564 v->value_float_4[1] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][1];
565 v->value_float_4[2] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2];
566 v->value_float_4[3] = ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3];
569 case GL_COLOR_WRITEMASK:
570 v->value_int_4[0] = ctx->Color.ColorMask[0][RCOMP] ? 1 : 0;
571 v->value_int_4[1] = ctx->Color.ColorMask[0][GCOMP] ? 1 : 0;
572 v->value_int_4[2] = ctx->Color.ColorMask[0][BCOMP] ? 1 : 0;
573 v->value_int_4[3] = ctx->Color.ColorMask[0][ACOMP] ? 1 : 0;
577 v->value_bool = ctx->Current.Attrib[VERT_ATTRIB_EDGEFLAG][0] == 1.0;
581 v->value_enum = ctx->ReadBuffer->ColorReadBuffer;
584 case GL_MAP2_GRID_DOMAIN:
585 v->value_float_4[0] = ctx->Eval.MapGrid2u1;
586 v->value_float_4[1] = ctx->Eval.MapGrid2u2;
587 v->value_float_4[2] = ctx->Eval.MapGrid2v1;
588 v->value_float_4[3] = ctx->Eval.MapGrid2v2;
591 case GL_TEXTURE_STACK_DEPTH:
592 unit = ctx->Texture.CurrentUnit;
593 v->value_int = ctx->TextureMatrixStack[unit].Depth + 1;
595 case GL_TEXTURE_MATRIX:
596 unit = ctx->Texture.CurrentUnit;
597 v->value_matrix = ctx->TextureMatrixStack[unit].Top;
600 case GL_TEXTURE_COORD_ARRAY:
601 case GL_TEXTURE_COORD_ARRAY_SIZE:
602 case GL_TEXTURE_COORD_ARRAY_TYPE:
603 case GL_TEXTURE_COORD_ARRAY_STRIDE:
604 array = &ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)];
605 v->value_int = *(GLuint *) ((char *) array + d->offset);
608 case GL_ACTIVE_TEXTURE_ARB:
609 v->value_int = GL_TEXTURE0_ARB + ctx->Texture.CurrentUnit;
611 case GL_CLIENT_ACTIVE_TEXTURE_ARB:
612 v->value_int = GL_TEXTURE0_ARB + ctx->Array.ActiveTexture;
615 case GL_MODELVIEW_STACK_DEPTH:
616 case GL_PROJECTION_STACK_DEPTH:
617 v->value_int = *(GLint *) ((char *) ctx + d->offset) + 1;
620 case GL_MAX_TEXTURE_SIZE:
621 case GL_MAX_3D_TEXTURE_SIZE:
622 case GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB:
623 p = (GLuint *) ((char *) ctx + d->offset);
624 v->value_int = 1 << (*p - 1);
628 v->value_int_4[0] = ctx->Scissor.X;
629 v->value_int_4[1] = ctx->Scissor.Y;
630 v->value_int_4[2] = ctx->Scissor.Width;
631 v->value_int_4[3] = ctx->Scissor.Height;
636 ctx->ListState.CurrentList ? ctx->ListState.CurrentList->Name : 0;
639 if (!ctx->CompileFlag)
641 else if (ctx->ExecuteFlag)
642 v->value_enum = GL_COMPILE_AND_EXECUTE;
644 v->value_enum = GL_COMPILE;
648 v->value_int_4[0] = ctx->Viewport.X;
649 v->value_int_4[1] = ctx->Viewport.Y;
650 v->value_int_4[2] = ctx->Viewport.Width;
651 v->value_int_4[3] = ctx->Viewport.Height;
654 case GL_ACTIVE_STENCIL_FACE_EXT:
655 v->value_enum = ctx->Stencil.ActiveFace ? GL_BACK : GL_FRONT;
658 case GL_STENCIL_FAIL:
659 v->value_enum = ctx->Stencil.FailFunc[ctx->Stencil.ActiveFace];
661 case GL_STENCIL_FUNC:
662 v->value_enum = ctx->Stencil.Function[ctx->Stencil.ActiveFace];
664 case GL_STENCIL_PASS_DEPTH_FAIL:
665 v->value_enum = ctx->Stencil.ZFailFunc[ctx->Stencil.ActiveFace];
667 case GL_STENCIL_PASS_DEPTH_PASS:
668 v->value_enum = ctx->Stencil.ZPassFunc[ctx->Stencil.ActiveFace];
671 v->value_int = ctx->Stencil.Ref[ctx->Stencil.ActiveFace];
673 case GL_STENCIL_VALUE_MASK:
674 v->value_int = ctx->Stencil.ValueMask[ctx->Stencil.ActiveFace];
676 case GL_STENCIL_WRITEMASK:
677 v->value_int = ctx->Stencil.WriteMask[ctx->Stencil.ActiveFace];
680 case GL_NUM_EXTENSIONS:
681 v->value_int = _mesa_get_extension_count(ctx);
684 case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
685 v->value_int = _mesa_get_color_read_type(ctx);
687 case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
688 v->value_int = _mesa_get_color_read_format(ctx);
691 case GL_CURRENT_MATRIX_STACK_DEPTH_ARB:
692 v->value_int = ctx->CurrentStack->Depth + 1;
694 case GL_CURRENT_MATRIX_ARB:
695 case GL_TRANSPOSE_CURRENT_MATRIX_ARB:
696 v->value_matrix = ctx->CurrentStack->Top;
699 case GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB:
700 v->value_int = _mesa_get_compressed_formats(ctx, NULL);
702 case GL_COMPRESSED_TEXTURE_FORMATS_ARB:
704 _mesa_get_compressed_formats(ctx, v->value_int_n.ints);
705 ASSERT(v->value_int_n.n <= 100);
708 case GL_MAX_VARYING_FLOATS_ARB:
709 v->value_int = ctx->Const.MaxVarying * 4;
712 /* Various object names */
714 case GL_TEXTURE_BINDING_1D:
715 case GL_TEXTURE_BINDING_2D:
716 case GL_TEXTURE_BINDING_3D:
717 case GL_TEXTURE_BINDING_1D_ARRAY_EXT:
718 case GL_TEXTURE_BINDING_2D_ARRAY_EXT:
719 case GL_TEXTURE_BINDING_CUBE_MAP_ARB:
720 case GL_TEXTURE_BINDING_RECTANGLE_NV:
721 case GL_TEXTURE_BINDING_EXTERNAL_OES:
722 case GL_TEXTURE_BINDING_CUBE_MAP_ARRAY:
723 case GL_TEXTURE_BINDING_2D_MULTISAMPLE:
724 case GL_TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY:
725 unit = ctx->Texture.CurrentUnit;
727 ctx->Texture.Unit[unit].CurrentTex[d->offset]->Name;
730 /* GL_ARB_vertex_buffer_object */
731 case GL_VERTEX_ARRAY_BUFFER_BINDING_ARB:
732 case GL_NORMAL_ARRAY_BUFFER_BINDING_ARB:
733 case GL_COLOR_ARRAY_BUFFER_BINDING_ARB:
734 case GL_INDEX_ARRAY_BUFFER_BINDING_ARB:
735 case GL_EDGE_FLAG_ARRAY_BUFFER_BINDING_ARB:
736 case GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING_ARB:
737 case GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING_ARB:
738 buffer_obj = (struct gl_buffer_object **)
739 ((char *) ctx->Array.ArrayObj + d->offset);
740 v->value_int = (*buffer_obj)->Name;
742 case GL_ARRAY_BUFFER_BINDING_ARB:
743 v->value_int = ctx->Array.ArrayBufferObj->Name;
745 case GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING_ARB:
747 ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].BufferObj->Name;
749 case GL_ELEMENT_ARRAY_BUFFER_BINDING_ARB:
750 v->value_int = ctx->Array.ArrayObj->ElementArrayBufferObj->Name;
753 /* ARB_copy_buffer */
754 case GL_COPY_READ_BUFFER:
755 v->value_int = ctx->CopyReadBuffer->Name;
757 case GL_COPY_WRITE_BUFFER:
758 v->value_int = ctx->CopyWriteBuffer->Name;
761 case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
762 v->value_int = ctx->Pack.BufferObj->Name;
764 case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
765 v->value_int = ctx->Unpack.BufferObj->Name;
767 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
768 v->value_int = ctx->TransformFeedback.CurrentBuffer->Name;
770 case GL_TRANSFORM_FEEDBACK_BUFFER_PAUSED:
771 v->value_int = ctx->TransformFeedback.CurrentObject->Paused;
773 case GL_TRANSFORM_FEEDBACK_BUFFER_ACTIVE:
774 v->value_int = ctx->TransformFeedback.CurrentObject->Active;
776 case GL_TRANSFORM_FEEDBACK_BINDING:
777 v->value_int = ctx->TransformFeedback.CurrentObject->Name;
779 case GL_CURRENT_PROGRAM:
781 ctx->Shader.ActiveProgram ? ctx->Shader.ActiveProgram->Name : 0;
783 case GL_READ_FRAMEBUFFER_BINDING_EXT:
784 v->value_int = ctx->ReadBuffer->Name;
786 case GL_RENDERBUFFER_BINDING_EXT:
788 ctx->CurrentRenderbuffer ? ctx->CurrentRenderbuffer->Name : 0;
790 case GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES:
791 v->value_int = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].BufferObj->Name;
795 if (_mesa_get_clamp_fragment_color(ctx))
796 COPY_4FV(v->value_float_4, ctx->Fog.Color);
798 COPY_4FV(v->value_float_4, ctx->Fog.ColorUnclamped);
800 case GL_COLOR_CLEAR_VALUE:
801 if (_mesa_get_clamp_fragment_color(ctx)) {
802 v->value_float_4[0] = CLAMP(ctx->Color.ClearColor.f[0], 0.0F, 1.0F);
803 v->value_float_4[1] = CLAMP(ctx->Color.ClearColor.f[1], 0.0F, 1.0F);
804 v->value_float_4[2] = CLAMP(ctx->Color.ClearColor.f[2], 0.0F, 1.0F);
805 v->value_float_4[3] = CLAMP(ctx->Color.ClearColor.f[3], 0.0F, 1.0F);
807 COPY_4FV(v->value_float_4, ctx->Color.ClearColor.f);
809 case GL_BLEND_COLOR_EXT:
810 if (_mesa_get_clamp_fragment_color(ctx))
811 COPY_4FV(v->value_float_4, ctx->Color.BlendColor);
813 COPY_4FV(v->value_float_4, ctx->Color.BlendColorUnclamped);
815 case GL_ALPHA_TEST_REF:
816 if (_mesa_get_clamp_fragment_color(ctx))
817 v->value_float = ctx->Color.AlphaRef;
819 v->value_float = ctx->Color.AlphaRefUnclamped;
821 case GL_MAX_VERTEX_UNIFORM_VECTORS:
822 v->value_int = ctx->Const.VertexProgram.MaxUniformComponents / 4;
825 case GL_MAX_FRAGMENT_UNIFORM_VECTORS:
826 v->value_int = ctx->Const.FragmentProgram.MaxUniformComponents / 4;
829 /* GL_ARB_texture_buffer_object */
830 case GL_TEXTURE_BUFFER_ARB:
831 v->value_int = ctx->Texture.BufferObject->Name;
833 case GL_TEXTURE_BINDING_BUFFER_ARB:
834 unit = ctx->Texture.CurrentUnit;
836 ctx->Texture.Unit[unit].CurrentTex[TEXTURE_BUFFER_INDEX]->Name;
838 case GL_TEXTURE_BUFFER_DATA_STORE_BINDING_ARB:
840 struct gl_buffer_object *buf =
841 ctx->Texture.Unit[ctx->Texture.CurrentUnit]
842 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObject;
843 v->value_int = buf ? buf->Name : 0;
846 case GL_TEXTURE_BUFFER_FORMAT_ARB:
847 v->value_int = ctx->Texture.Unit[ctx->Texture.CurrentUnit]
848 .CurrentTex[TEXTURE_BUFFER_INDEX]->BufferObjectFormat;
851 /* GL_ARB_sampler_objects */
852 case GL_SAMPLER_BINDING:
854 struct gl_sampler_object *samp =
855 ctx->Texture.Unit[ctx->Texture.CurrentUnit].Sampler;
858 * The sampler object may have been deleted on another context,
859 * so we try to lookup the sampler object before returning its Name.
861 if (samp && _mesa_lookup_samplerobj(ctx, samp->Name)) {
862 v->value_int = samp->Name;
868 /* GL_ARB_uniform_buffer_object */
869 case GL_UNIFORM_BUFFER_BINDING:
870 v->value_int = ctx->UniformBuffer->Name;
872 /* GL_ARB_timer_query */
874 if (ctx->Driver.GetTimestamp) {
875 v->value_int64 = ctx->Driver.GetTimestamp(ctx);
878 _mesa_problem(ctx, "driver doesn't implement GetTimestamp");
885 * Check extra constraints on a struct value_desc descriptor
887 * If a struct value_desc has a non-NULL extra pointer, it means that
888 * there are a number of extra constraints to check or actions to
889 * perform. The extras is just an integer array where each integer
890 * encode different constraints or actions.
892 * \param ctx current context
893 * \param func name of calling glGet*v() function for error reporting
894 * \param d the struct value_desc that has the extra constraints
896 * \return GL_FALSE if all of the constraints were not satisfied,
900 check_extra(struct gl_context *ctx, const char *func, const struct value_desc *d)
902 const GLuint version = ctx->Version;
908 for (e = d->extra; *e != EXTRA_END; e++)
910 case EXTRA_VERSION_30:
916 case EXTRA_VERSION_31:
922 case EXTRA_VERSION_32:
928 case EXTRA_NEW_FRAG_CLAMP:
929 if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
930 _mesa_update_state(ctx);
933 if (ctx->API == API_OPENGLES2) {
939 if (_mesa_is_gles3(ctx)) {
945 if (_mesa_is_desktop_gl(ctx)) {
950 case EXTRA_API_GL_CORE:
951 if (ctx->API == API_OPENGL_CORE) {
956 case EXTRA_NEW_BUFFERS:
957 if (ctx->NewState & _NEW_BUFFERS)
958 _mesa_update_state(ctx);
960 case EXTRA_FLUSH_CURRENT:
961 FLUSH_CURRENT(ctx, 0);
963 case EXTRA_VALID_DRAW_BUFFER:
964 if (d->pname - GL_DRAW_BUFFER0_ARB >= ctx->Const.MaxDrawBuffers) {
965 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(draw buffer %u)",
966 func, d->pname - GL_DRAW_BUFFER0_ARB);
970 case EXTRA_VALID_TEXTURE_UNIT:
971 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
972 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(texture %u)",
973 func, ctx->Texture.CurrentUnit);
977 case EXTRA_VALID_CLIP_DISTANCE:
978 if (d->pname - GL_CLIP_DISTANCE0 >= ctx->Const.MaxClipPlanes) {
979 _mesa_error(ctx, GL_INVALID_ENUM, "%s(clip distance %u)",
980 func, d->pname - GL_CLIP_DISTANCE0);
985 if (ctx->Const.GLSLVersion >= 130) {
992 default: /* *e is a offset into the extension struct */
994 if (*(GLboolean *) ((char *) &ctx->Extensions + *e))
999 if (total > 0 && enabled == 0) {
1000 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1001 _mesa_lookup_enum_by_nr(d->pname));
1008 static const struct value_desc error_value =
1009 { 0, 0, TYPE_INVALID, NO_OFFSET, NO_EXTRA };
1012 * Find the struct value_desc corresponding to the enum 'pname'.
1014 * We hash the enum value to get an index into the 'table' array,
1015 * which holds the index in the 'values' array of struct value_desc.
1016 * Once we've found the entry, we do the extra checks, if any, then
1017 * look up the value and return a pointer to it.
1019 * If the value has to be computed (for example, it's the result of a
1020 * function call or we need to add 1 to it), we use the tmp 'v' to
1023 * \param func name of glGet*v() func for error reporting
1024 * \param pname the enum value we're looking up
1025 * \param p is were we return the pointer to the value
1026 * \param v a tmp union value variable in the calling glGet*v() function
1028 * \return the struct value_desc corresponding to the enum or a struct
1029 * value_desc of TYPE_INVALID if not found. This lets the calling
1030 * glGet*v() function jump right into a switch statement and
1031 * handle errors there instead of having to check for NULL.
1033 static const struct value_desc *
1034 find_value(const char *func, GLenum pname, void **p, union value *v)
1036 GET_CURRENT_CONTEXT(ctx);
1037 struct gl_texture_unit *unit;
1039 const struct value_desc *d;
1043 /* We index into the table_set[] list of per-API hash tables using the API's
1044 * value in the gl_api enum. Since GLES 3 doesn't have an API_OPENGL* enum
1045 * value since it's compatible with GLES2 its entry in table_set[] is at the
1048 STATIC_ASSERT(Elements(table_set) == API_OPENGL_LAST + 2);
1049 if (_mesa_is_gles3(ctx)) {
1050 api = API_OPENGL_LAST + 1;
1052 mask = Elements(table(api)) - 1;
1053 hash = (pname * prime_factor);
1055 int idx = table(api)[hash & mask];
1057 /* If the enum isn't valid, the hash walk ends with index 0,
1058 * pointing to the first entry of values[] which doesn't hold
1059 * any valid enum. */
1060 if (unlikely(idx == 0)) {
1061 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1062 _mesa_lookup_enum_by_nr(pname));
1063 return &error_value;
1067 if (likely(d->pname == pname))
1073 if (unlikely(d->extra && !check_extra(ctx, func, d)))
1074 return &error_value;
1076 switch (d->location) {
1078 *p = ((char *) ctx->DrawBuffer + d->offset);
1081 *p = ((char *) ctx + d->offset);
1084 *p = ((char *) ctx->Array.ArrayObj + d->offset);
1087 unit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1088 *p = ((char *) unit + d->offset);
1091 find_custom_value(ctx, d, v);
1099 /* silence warning */
1100 return &error_value;
1103 static const int transpose[] = {
1111 _mesa_GetBooleanv(GLenum pname, GLboolean *params)
1113 const struct value_desc *d;
1119 d = find_value("glGetBooleanv", pname, &p, &v);
1124 params[0] = INT_TO_BOOLEAN(d->offset);
1129 params[3] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[3]);
1132 params[2] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[2]);
1135 params[1] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[1]);
1138 params[0] = FLOAT_TO_BOOLEAN(((GLfloat *) p)[0]);
1142 params[0] = FLOAT_TO_BOOLEAN(((GLdouble *) p)[0]);
1146 params[3] = INT_TO_BOOLEAN(((GLint *) p)[3]);
1148 params[2] = INT_TO_BOOLEAN(((GLint *) p)[2]);
1151 params[1] = INT_TO_BOOLEAN(((GLint *) p)[1]);
1154 params[0] = INT_TO_BOOLEAN(((GLint *) p)[0]);
1158 for (i = 0; i < v.value_int_n.n; i++)
1159 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1163 params[0] = INT64_TO_BOOLEAN(((GLint64 *) p)[0]);
1167 params[0] = ((GLboolean*) p)[0];
1171 m = *(GLmatrix **) p;
1172 for (i = 0; i < 16; i++)
1173 params[i] = FLOAT_TO_BOOLEAN(m->m[i]);
1177 m = *(GLmatrix **) p;
1178 for (i = 0; i < 16; i++)
1179 params[i] = FLOAT_TO_BOOLEAN(m->m[transpose[i]]);
1190 shift = d->type - TYPE_BIT_0;
1191 params[0] = (*(GLbitfield *) p >> shift) & 1;
1197 _mesa_GetFloatv(GLenum pname, GLfloat *params)
1199 const struct value_desc *d;
1205 d = find_value("glGetFloatv", pname, &p, &v);
1210 params[0] = (GLfloat) d->offset;
1215 params[3] = ((GLfloat *) p)[3];
1218 params[2] = ((GLfloat *) p)[2];
1221 params[1] = ((GLfloat *) p)[1];
1224 params[0] = ((GLfloat *) p)[0];
1228 params[0] = (GLfloat) (((GLdouble *) p)[0]);
1232 params[3] = (GLfloat) (((GLint *) p)[3]);
1234 params[2] = (GLfloat) (((GLint *) p)[2]);
1237 params[1] = (GLfloat) (((GLint *) p)[1]);
1240 params[0] = (GLfloat) (((GLint *) p)[0]);
1244 for (i = 0; i < v.value_int_n.n; i++)
1245 params[i] = INT_TO_FLOAT(v.value_int_n.ints[i]);
1249 params[0] = (GLfloat) (((GLint64 *) p)[0]);
1253 params[0] = BOOLEAN_TO_FLOAT(*(GLboolean*) p);
1257 m = *(GLmatrix **) p;
1258 for (i = 0; i < 16; i++)
1259 params[i] = m->m[i];
1263 m = *(GLmatrix **) p;
1264 for (i = 0; i < 16; i++)
1265 params[i] = m->m[transpose[i]];
1276 shift = d->type - TYPE_BIT_0;
1277 params[0] = BOOLEAN_TO_FLOAT((*(GLbitfield *) p >> shift) & 1);
1283 _mesa_GetIntegerv(GLenum pname, GLint *params)
1285 const struct value_desc *d;
1291 d = find_value("glGetIntegerv", pname, &p, &v);
1296 params[0] = d->offset;
1300 params[3] = IROUND(((GLfloat *) p)[3]);
1302 params[2] = IROUND(((GLfloat *) p)[2]);
1304 params[1] = IROUND(((GLfloat *) p)[1]);
1306 params[0] = IROUND(((GLfloat *) p)[0]);
1310 params[3] = FLOAT_TO_INT(((GLfloat *) p)[3]);
1312 params[2] = FLOAT_TO_INT(((GLfloat *) p)[2]);
1314 params[1] = FLOAT_TO_INT(((GLfloat *) p)[1]);
1316 params[0] = FLOAT_TO_INT(((GLfloat *) p)[0]);
1320 params[0] = FLOAT_TO_INT(((GLdouble *) p)[0]);
1324 params[3] = ((GLint *) p)[3];
1326 params[2] = ((GLint *) p)[2];
1329 params[1] = ((GLint *) p)[1];
1332 params[0] = ((GLint *) p)[0];
1336 for (i = 0; i < v.value_int_n.n; i++)
1337 params[i] = v.value_int_n.ints[i];
1341 params[0] = INT64_TO_INT(((GLint64 *) p)[0]);
1345 params[0] = BOOLEAN_TO_INT(*(GLboolean*) p);
1349 m = *(GLmatrix **) p;
1350 for (i = 0; i < 16; i++)
1351 params[i] = FLOAT_TO_INT(m->m[i]);
1355 m = *(GLmatrix **) p;
1356 for (i = 0; i < 16; i++)
1357 params[i] = FLOAT_TO_INT(m->m[transpose[i]]);
1368 shift = d->type - TYPE_BIT_0;
1369 params[0] = (*(GLbitfield *) p >> shift) & 1;
1375 _mesa_GetInteger64v(GLenum pname, GLint64 *params)
1377 const struct value_desc *d;
1383 d = find_value("glGetInteger64v", pname, &p, &v);
1388 params[0] = d->offset;
1392 params[3] = IROUND64(((GLfloat *) p)[3]);
1394 params[2] = IROUND64(((GLfloat *) p)[2]);
1396 params[1] = IROUND64(((GLfloat *) p)[1]);
1398 params[0] = IROUND64(((GLfloat *) p)[0]);
1402 params[3] = FLOAT_TO_INT64(((GLfloat *) p)[3]);
1404 params[2] = FLOAT_TO_INT64(((GLfloat *) p)[2]);
1406 params[1] = FLOAT_TO_INT64(((GLfloat *) p)[1]);
1408 params[0] = FLOAT_TO_INT64(((GLfloat *) p)[0]);
1412 params[0] = FLOAT_TO_INT64(((GLdouble *) p)[0]);
1416 params[3] = ((GLint *) p)[3];
1418 params[2] = ((GLint *) p)[2];
1421 params[1] = ((GLint *) p)[1];
1424 params[0] = ((GLint *) p)[0];
1428 for (i = 0; i < v.value_int_n.n; i++)
1429 params[i] = INT_TO_BOOLEAN(v.value_int_n.ints[i]);
1433 params[0] = ((GLint64 *) p)[0];
1437 params[0] = ((GLboolean*) p)[0];
1441 m = *(GLmatrix **) p;
1442 for (i = 0; i < 16; i++)
1443 params[i] = FLOAT_TO_INT64(m->m[i]);
1447 m = *(GLmatrix **) p;
1448 for (i = 0; i < 16; i++)
1449 params[i] = FLOAT_TO_INT64(m->m[transpose[i]]);
1460 shift = d->type - TYPE_BIT_0;
1461 params[0] = (*(GLbitfield *) p >> shift) & 1;
1467 _mesa_GetDoublev(GLenum pname, GLdouble *params)
1469 const struct value_desc *d;
1475 d = find_value("glGetDoublev", pname, &p, &v);
1480 params[0] = d->offset;
1485 params[3] = ((GLfloat *) p)[3];
1488 params[2] = ((GLfloat *) p)[2];
1491 params[1] = ((GLfloat *) p)[1];
1494 params[0] = ((GLfloat *) p)[0];
1498 params[0] = ((GLdouble *) p)[0];
1502 params[3] = ((GLint *) p)[3];
1504 params[2] = ((GLint *) p)[2];
1507 params[1] = ((GLint *) p)[1];
1510 params[0] = ((GLint *) p)[0];
1514 for (i = 0; i < v.value_int_n.n; i++)
1515 params[i] = v.value_int_n.ints[i];
1519 params[0] = (GLdouble) (((GLint64 *) p)[0]);
1523 params[0] = *(GLboolean*) p;
1527 m = *(GLmatrix **) p;
1528 for (i = 0; i < 16; i++)
1529 params[i] = m->m[i];
1533 m = *(GLmatrix **) p;
1534 for (i = 0; i < 16; i++)
1535 params[i] = m->m[transpose[i]];
1546 shift = d->type - TYPE_BIT_0;
1547 params[0] = (*(GLbitfield *) p >> shift) & 1;
1552 static enum value_type
1553 find_value_indexed(const char *func, GLenum pname, GLuint index, union value *v)
1555 GET_CURRENT_CONTEXT(ctx);
1560 if (index >= ctx->Const.MaxDrawBuffers)
1562 if (!ctx->Extensions.EXT_draw_buffers2)
1564 v->value_int = (ctx->Color.BlendEnabled >> index) & 1;
1569 case GL_BLEND_SRC_RGB:
1570 if (index >= ctx->Const.MaxDrawBuffers)
1572 if (!ctx->Extensions.ARB_draw_buffers_blend)
1574 v->value_int = ctx->Color.Blend[index].SrcRGB;
1576 case GL_BLEND_SRC_ALPHA:
1577 if (index >= ctx->Const.MaxDrawBuffers)
1579 if (!ctx->Extensions.ARB_draw_buffers_blend)
1581 v->value_int = ctx->Color.Blend[index].SrcA;
1585 case GL_BLEND_DST_RGB:
1586 if (index >= ctx->Const.MaxDrawBuffers)
1588 if (!ctx->Extensions.ARB_draw_buffers_blend)
1590 v->value_int = ctx->Color.Blend[index].DstRGB;
1592 case GL_BLEND_DST_ALPHA:
1593 if (index >= ctx->Const.MaxDrawBuffers)
1595 if (!ctx->Extensions.ARB_draw_buffers_blend)
1597 v->value_int = ctx->Color.Blend[index].DstA;
1599 case GL_BLEND_EQUATION_RGB:
1600 if (index >= ctx->Const.MaxDrawBuffers)
1602 if (!ctx->Extensions.ARB_draw_buffers_blend)
1604 v->value_int = ctx->Color.Blend[index].EquationRGB;
1606 case GL_BLEND_EQUATION_ALPHA:
1607 if (index >= ctx->Const.MaxDrawBuffers)
1609 if (!ctx->Extensions.ARB_draw_buffers_blend)
1611 v->value_int = ctx->Color.Blend[index].EquationA;
1614 case GL_COLOR_WRITEMASK:
1615 if (index >= ctx->Const.MaxDrawBuffers)
1617 if (!ctx->Extensions.EXT_draw_buffers2)
1619 v->value_int_4[0] = ctx->Color.ColorMask[index][RCOMP] ? 1 : 0;
1620 v->value_int_4[1] = ctx->Color.ColorMask[index][GCOMP] ? 1 : 0;
1621 v->value_int_4[2] = ctx->Color.ColorMask[index][BCOMP] ? 1 : 0;
1622 v->value_int_4[3] = ctx->Color.ColorMask[index][ACOMP] ? 1 : 0;
1625 case GL_TRANSFORM_FEEDBACK_BUFFER_START:
1626 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1628 if (!ctx->Extensions.EXT_transform_feedback)
1630 v->value_int64 = ctx->TransformFeedback.CurrentObject->Offset[index];
1633 case GL_TRANSFORM_FEEDBACK_BUFFER_SIZE:
1634 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1636 if (!ctx->Extensions.EXT_transform_feedback)
1639 = ctx->TransformFeedback.CurrentObject->RequestedSize[index];
1642 case GL_TRANSFORM_FEEDBACK_BUFFER_BINDING:
1643 if (index >= ctx->Const.MaxTransformFeedbackBuffers)
1645 if (!ctx->Extensions.EXT_transform_feedback)
1647 v->value_int = ctx->TransformFeedback.CurrentObject->BufferNames[index];
1650 case GL_UNIFORM_BUFFER_BINDING:
1651 if (index >= ctx->Const.MaxUniformBufferBindings)
1653 if (!ctx->Extensions.ARB_uniform_buffer_object)
1655 v->value_int = ctx->UniformBufferBindings[index].BufferObject->Name;
1658 case GL_UNIFORM_BUFFER_START:
1659 if (index >= ctx->Const.MaxUniformBufferBindings)
1661 if (!ctx->Extensions.ARB_uniform_buffer_object)
1663 v->value_int = ctx->UniformBufferBindings[index].Offset;
1666 case GL_UNIFORM_BUFFER_SIZE:
1667 if (index >= ctx->Const.MaxUniformBufferBindings)
1669 if (!ctx->Extensions.ARB_uniform_buffer_object)
1671 v->value_int = ctx->UniformBufferBindings[index].Size;
1674 /* ARB_texture_multisample / GL3.2 */
1675 case GL_SAMPLE_MASK_VALUE:
1678 if (!ctx->Extensions.ARB_texture_multisample)
1680 v->value_int = ctx->Multisample.SampleMaskValue;
1685 _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=%s)", func,
1686 _mesa_lookup_enum_by_nr(pname));
1687 return TYPE_INVALID;
1689 _mesa_error(ctx, GL_INVALID_VALUE, "%s(pname=%s)", func,
1690 _mesa_lookup_enum_by_nr(pname));
1691 return TYPE_INVALID;
1695 _mesa_GetBooleani_v( GLenum pname, GLuint index, GLboolean *params )
1698 enum value_type type =
1699 find_value_indexed("glGetBooleani_v", pname, index, &v);
1703 params[0] = INT_TO_BOOLEAN(v.value_int);
1706 params[0] = INT_TO_BOOLEAN(v.value_int_4[0]);
1707 params[1] = INT_TO_BOOLEAN(v.value_int_4[1]);
1708 params[2] = INT_TO_BOOLEAN(v.value_int_4[2]);
1709 params[3] = INT_TO_BOOLEAN(v.value_int_4[3]);
1712 params[0] = INT64_TO_BOOLEAN(v.value_int);
1715 ; /* nothing - GL error was recorded */
1720 _mesa_GetIntegeri_v( GLenum pname, GLuint index, GLint *params )
1723 enum value_type type =
1724 find_value_indexed("glGetIntegeri_v", pname, index, &v);
1728 params[0] = v.value_int;
1731 params[0] = v.value_int_4[0];
1732 params[1] = v.value_int_4[1];
1733 params[2] = v.value_int_4[2];
1734 params[3] = v.value_int_4[3];
1737 params[0] = INT64_TO_INT(v.value_int);
1740 ; /* nothing - GL error was recorded */
1745 _mesa_GetInteger64i_v( GLenum pname, GLuint index, GLint64 *params )
1748 enum value_type type =
1749 find_value_indexed("glGetInteger64i_v", pname, index, &v);
1753 params[0] = v.value_int;
1756 params[0] = v.value_int_4[0];
1757 params[1] = v.value_int_4[1];
1758 params[2] = v.value_int_4[2];
1759 params[3] = v.value_int_4[3];
1762 params[0] = v.value_int;
1765 ; /* nothing - GL error was recorded */
1770 _mesa_GetFixedv(GLenum pname, GLfixed *params)
1772 const struct value_desc *d;
1778 d = find_value("glGetDoublev", pname, &p, &v);
1783 params[0] = INT_TO_FIXED(d->offset);
1788 params[3] = FLOAT_TO_FIXED(((GLfloat *) p)[3]);
1791 params[2] = FLOAT_TO_FIXED(((GLfloat *) p)[2]);
1794 params[1] = FLOAT_TO_FIXED(((GLfloat *) p)[1]);
1797 params[0] = FLOAT_TO_FIXED(((GLfloat *) p)[0]);
1801 params[0] = FLOAT_TO_FIXED(((GLdouble *) p)[0]);
1805 params[3] = INT_TO_FIXED(((GLint *) p)[3]);
1807 params[2] = INT_TO_FIXED(((GLint *) p)[2]);
1810 params[1] = INT_TO_FIXED(((GLint *) p)[1]);
1813 params[0] = INT_TO_FIXED(((GLint *) p)[0]);
1817 for (i = 0; i < v.value_int_n.n; i++)
1818 params[i] = INT_TO_FIXED(v.value_int_n.ints[i]);
1822 params[0] = ((GLint64 *) p)[0];
1826 params[0] = BOOLEAN_TO_FIXED(((GLboolean*) p)[0]);
1830 m = *(GLmatrix **) p;
1831 for (i = 0; i < 16; i++)
1832 params[i] = FLOAT_TO_FIXED(m->m[i]);
1836 m = *(GLmatrix **) p;
1837 for (i = 0; i < 16; i++)
1838 params[i] = FLOAT_TO_FIXED(m->m[transpose[i]]);
1849 shift = d->type - TYPE_BIT_0;
1850 params[0] = BOOLEAN_TO_FIXED((*(GLbitfield *) p >> shift) & 1);