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651 lines
19 KiB
C
651 lines
19 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 7.6
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*
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* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <precomp.h>
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/** Used to indicate which GL datatypes are accepted by each of the
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* glVertex/Color/Attrib/EtcPointer() functions.
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*/
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#define BOOL_BIT 0x1
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#define BYTE_BIT 0x2
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#define UNSIGNED_BYTE_BIT 0x4
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#define SHORT_BIT 0x8
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#define UNSIGNED_SHORT_BIT 0x10
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#define INT_BIT 0x20
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#define UNSIGNED_INT_BIT 0x40
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#define HALF_BIT 0x80
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#define FLOAT_BIT 0x100
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#define DOUBLE_BIT 0x200
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/** Convert GL datatype enum into a <type>_BIT value seen above */
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static GLbitfield
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type_to_bit(const struct gl_context *ctx, GLenum type)
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{
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switch (type) {
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case GL_BOOL:
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return BOOL_BIT;
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case GL_BYTE:
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return BYTE_BIT;
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case GL_UNSIGNED_BYTE:
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return UNSIGNED_BYTE_BIT;
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case GL_SHORT:
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return SHORT_BIT;
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case GL_UNSIGNED_SHORT:
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return UNSIGNED_SHORT_BIT;
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case GL_INT:
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return INT_BIT;
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case GL_UNSIGNED_INT:
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return UNSIGNED_INT_BIT;
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case GL_FLOAT:
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return FLOAT_BIT;
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case GL_DOUBLE:
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return DOUBLE_BIT;
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default:
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return 0;
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}
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}
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/**
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* Do error checking and update state for glVertex/Color/TexCoord/...Pointer
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* functions.
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*
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* \param func name of calling function used for error reporting
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* \param attrib the attribute array index to update
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* \param legalTypes bitmask of *_BIT above indicating legal datatypes
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* \param sizeMin min allowable size value
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* \param sizeMax max allowable size value
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* \param size components per element (1, 2, 3 or 4)
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* \param type datatype of each component (GL_FLOAT, GL_INT, etc)
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* \param stride stride between elements, in elements
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* \param normalized are integer types converted to floats in [-1, 1]?
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* \param integer integer-valued values (will not be normalized to [-1,1])
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* \param ptr the address (or offset inside VBO) of the array data
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*/
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static void
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update_array(struct gl_context *ctx,
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const char *func,
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GLuint attrib, GLbitfield legalTypesMask,
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GLint sizeMin, GLint sizeMax,
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GLint size, GLenum type, GLsizei stride,
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GLboolean normalized, GLboolean integer,
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const GLvoid *ptr)
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{
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struct gl_client_array *array;
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GLbitfield typeBit;
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GLsizei elementSize;
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typeBit = type_to_bit(ctx, type);
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if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
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_mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
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func, _mesa_lookup_enum_by_nr(type));
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return;
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}
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/* Do size parameter checking. */
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if (size < sizeMin || size > sizeMax || size > 4) {
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_mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
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return;
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}
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ASSERT(size <= 4);
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if (stride < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
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return;
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}
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elementSize = _mesa_sizeof_type(type) * size;
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array = &ctx->Array.VertexAttrib[attrib];
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array->Size = size;
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array->Type = type;
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array->Stride = stride;
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array->StrideB = stride ? stride : elementSize;
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array->Normalized = normalized;
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array->Integer = integer;
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array->Ptr = (const GLubyte *) ptr;
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array->_ElementSize = elementSize;
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ctx->NewState |= _NEW_ARRAY;
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ctx->Array.NewState |= VERT_BIT(attrib);
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}
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void GLAPIENTRY
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_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
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{
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GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT |
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DOUBLE_BIT | HALF_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glVertexPointer", VERT_ATTRIB_POS,
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legalTypes, 2, 4,
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size, type, stride, GL_FALSE, GL_FALSE, ptr);
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}
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void GLAPIENTRY
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_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )
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{
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const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT |
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HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glNormalPointer", VERT_ATTRIB_NORMAL,
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legalTypes, 3, 3,
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3, type, stride, GL_TRUE, GL_FALSE, ptr);
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}
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void GLAPIENTRY
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_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
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{
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const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
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SHORT_BIT | UNSIGNED_SHORT_BIT |
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INT_BIT | UNSIGNED_INT_BIT |
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HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glColorPointer", VERT_ATTRIB_COLOR,
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legalTypes, 3, 4,
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size, type, stride, GL_TRUE, GL_FALSE, ptr);
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}
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void GLAPIENTRY
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_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)
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{
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const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glFogCoordPointer", VERT_ATTRIB_FOG,
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legalTypes, 1, 1,
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1, type, stride, GL_FALSE, GL_FALSE, ptr);
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}
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void GLAPIENTRY
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_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
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{
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const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT |
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FLOAT_BIT | DOUBLE_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glIndexPointer", VERT_ATTRIB_COLOR_INDEX,
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legalTypes, 1, 1,
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1, type, stride, GL_FALSE, GL_FALSE, ptr);
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}
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void GLAPIENTRY
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_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
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const GLvoid *ptr)
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{
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GLbitfield legalTypes = (SHORT_BIT | INT_BIT |
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HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glTexCoordPointer", VERT_ATTRIB_TEX,
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legalTypes, 1, 4,
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size, type, stride, GL_FALSE, GL_FALSE,
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ptr);
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}
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void GLAPIENTRY
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_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
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{
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const GLbitfield legalTypes = UNSIGNED_BYTE_BIT;
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/* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
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const GLboolean integer = GL_TRUE;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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update_array(ctx, "glEdgeFlagPointer", VERT_ATTRIB_EDGEFLAG,
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legalTypes, 1, 1,
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1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr);
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}
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void GLAPIENTRY
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_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
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GLsizei count, const GLvoid *ptr)
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{
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(void) count;
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_mesa_VertexPointer(size, type, stride, ptr);
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}
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void GLAPIENTRY
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_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
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const GLvoid *ptr)
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{
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(void) count;
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_mesa_NormalPointer(type, stride, ptr);
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}
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void GLAPIENTRY
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_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
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const GLvoid *ptr)
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{
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(void) count;
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_mesa_ColorPointer(size, type, stride, ptr);
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}
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void GLAPIENTRY
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_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
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const GLvoid *ptr)
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{
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(void) count;
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_mesa_IndexPointer(type, stride, ptr);
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}
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void GLAPIENTRY
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_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
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GLsizei count, const GLvoid *ptr)
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{
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(void) count;
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_mesa_TexCoordPointer(size, type, stride, ptr);
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}
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void GLAPIENTRY
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_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
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{
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(void) count;
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_mesa_EdgeFlagPointer(stride, ptr);
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}
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void GLAPIENTRY
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_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
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{
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GET_CURRENT_CONTEXT(ctx);
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GLboolean tflag, cflag, nflag; /* enable/disable flags */
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GLint tcomps, ccomps, vcomps; /* components per texcoord, color, vertex */
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GLenum ctype = 0; /* color type */
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GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
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const GLint toffset = 0; /* always zero */
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GLint defstride; /* default stride */
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GLint c, f;
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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f = sizeof(GLfloat);
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c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
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if (stride < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
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return;
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}
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switch (format) {
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case GL_V2F:
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tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE;
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tcomps = 0; ccomps = 0; vcomps = 2;
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voffset = 0;
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defstride = 2*f;
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break;
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case GL_V3F:
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tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_FALSE;
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tcomps = 0; ccomps = 0; vcomps = 3;
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voffset = 0;
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defstride = 3*f;
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break;
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case GL_C4UB_V2F:
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tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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tcomps = 0; ccomps = 4; vcomps = 2;
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ctype = GL_UNSIGNED_BYTE;
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coffset = 0;
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voffset = c;
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defstride = c + 2*f;
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break;
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case GL_C4UB_V3F:
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tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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tcomps = 0; ccomps = 4; vcomps = 3;
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ctype = GL_UNSIGNED_BYTE;
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coffset = 0;
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voffset = c;
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defstride = c + 3*f;
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break;
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case GL_C3F_V3F:
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tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_FALSE;
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tcomps = 0; ccomps = 3; vcomps = 3;
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ctype = GL_FLOAT;
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coffset = 0;
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voffset = 3*f;
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defstride = 6*f;
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break;
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case GL_N3F_V3F:
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tflag = GL_FALSE; cflag = GL_FALSE; nflag = GL_TRUE;
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tcomps = 0; ccomps = 0; vcomps = 3;
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noffset = 0;
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voffset = 3*f;
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defstride = 6*f;
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break;
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case GL_C4F_N3F_V3F:
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tflag = GL_FALSE; cflag = GL_TRUE; nflag = GL_TRUE;
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tcomps = 0; ccomps = 4; vcomps = 3;
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ctype = GL_FLOAT;
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coffset = 0;
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noffset = 4*f;
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voffset = 7*f;
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defstride = 10*f;
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break;
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case GL_T2F_V3F:
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tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE;
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tcomps = 2; ccomps = 0; vcomps = 3;
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voffset = 2*f;
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defstride = 5*f;
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break;
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case GL_T4F_V4F:
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tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_FALSE;
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tcomps = 4; ccomps = 0; vcomps = 4;
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voffset = 4*f;
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defstride = 8*f;
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break;
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case GL_T2F_C4UB_V3F:
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tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE;
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tcomps = 2; ccomps = 4; vcomps = 3;
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ctype = GL_UNSIGNED_BYTE;
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coffset = 2*f;
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voffset = c+2*f;
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defstride = c+5*f;
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break;
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case GL_T2F_C3F_V3F:
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tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_FALSE;
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tcomps = 2; ccomps = 3; vcomps = 3;
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ctype = GL_FLOAT;
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coffset = 2*f;
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voffset = 5*f;
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defstride = 8*f;
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break;
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case GL_T2F_N3F_V3F:
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tflag = GL_TRUE; cflag = GL_FALSE; nflag = GL_TRUE;
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tcomps = 2; ccomps = 0; vcomps = 3;
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noffset = 2*f;
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voffset = 5*f;
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defstride = 8*f;
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break;
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case GL_T2F_C4F_N3F_V3F:
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tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE;
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tcomps = 2; ccomps = 4; vcomps = 3;
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ctype = GL_FLOAT;
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coffset = 2*f;
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noffset = 6*f;
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voffset = 9*f;
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defstride = 12*f;
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break;
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case GL_T4F_C4F_N3F_V4F:
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tflag = GL_TRUE; cflag = GL_TRUE; nflag = GL_TRUE;
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tcomps = 4; ccomps = 4; vcomps = 4;
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ctype = GL_FLOAT;
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coffset = 4*f;
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noffset = 8*f;
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voffset = 11*f;
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defstride = 15*f;
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break;
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default:
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_mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
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return;
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}
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if (stride==0) {
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stride = defstride;
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}
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_mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
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_mesa_DisableClientState( GL_INDEX_ARRAY );
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/* XXX also disable secondary color and generic arrays? */
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/* Texcoords */
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if (tflag) {
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_mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
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_mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
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(GLubyte *) pointer + toffset );
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}
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else {
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_mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
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}
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/* Color */
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if (cflag) {
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_mesa_EnableClientState( GL_COLOR_ARRAY );
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_mesa_ColorPointer( ccomps, ctype, stride,
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(GLubyte *) pointer + coffset );
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}
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else {
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_mesa_DisableClientState( GL_COLOR_ARRAY );
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}
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/* Normals */
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if (nflag) {
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_mesa_EnableClientState( GL_NORMAL_ARRAY );
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_mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
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}
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else {
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_mesa_DisableClientState( GL_NORMAL_ARRAY );
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}
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/* Vertices */
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_mesa_EnableClientState( GL_VERTEX_ARRAY );
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_mesa_VertexPointer( vcomps, GL_FLOAT, stride,
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(GLubyte *) pointer + voffset );
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}
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void GLAPIENTRY
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_mesa_LockArraysEXT(GLint first, GLsizei count)
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{
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
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if (MESA_VERBOSE & VERBOSE_API)
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_mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
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if (first < 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
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return;
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}
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if (count <= 0) {
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_mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
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return;
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}
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if (ctx->Array.LockCount != 0) {
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_mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
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return;
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}
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ctx->Array.LockFirst = first;
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ctx->Array.LockCount = count;
|
|
|
|
ctx->NewState |= _NEW_ARRAY;
|
|
ctx->Array.NewState |= VERT_BIT_ALL;
|
|
}
|
|
|
|
|
|
void GLAPIENTRY
|
|
_mesa_UnlockArraysEXT( void )
|
|
{
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
|
|
|
|
if (MESA_VERBOSE & VERBOSE_API)
|
|
_mesa_debug(ctx, "glUnlockArrays\n");
|
|
|
|
if (ctx->Array.LockCount == 0) {
|
|
_mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
|
|
return;
|
|
}
|
|
|
|
ctx->Array.LockFirst = 0;
|
|
ctx->Array.LockCount = 0;
|
|
ctx->NewState |= _NEW_ARRAY;
|
|
ctx->Array.NewState |= VERT_BIT_ALL;
|
|
}
|
|
|
|
/* GL_IBM_multimode_draw_arrays */
|
|
void GLAPIENTRY
|
|
_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
|
|
const GLsizei * count,
|
|
GLsizei primcount, GLint modestride )
|
|
{
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
GLint i;
|
|
|
|
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
|
|
|
|
for ( i = 0 ; i < primcount ; i++ ) {
|
|
if ( count[i] > 0 ) {
|
|
GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
|
|
CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* GL_IBM_multimode_draw_arrays */
|
|
void GLAPIENTRY
|
|
_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
|
|
GLenum type, const GLvoid * const * indices,
|
|
GLsizei primcount, GLint modestride )
|
|
{
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
GLint i;
|
|
|
|
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
|
|
|
|
/* XXX not sure about ARB_vertex_buffer_object handling here */
|
|
|
|
for ( i = 0 ; i < primcount ; i++ ) {
|
|
if ( count[i] > 0 ) {
|
|
GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
|
|
CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Copy one client vertex array to another.
|
|
*/
|
|
void
|
|
_mesa_copy_client_array(struct gl_context *ctx,
|
|
struct gl_client_array *dst,
|
|
struct gl_client_array *src)
|
|
{
|
|
dst->Size = src->Size;
|
|
dst->Type = src->Type;
|
|
dst->Stride = src->Stride;
|
|
dst->StrideB = src->StrideB;
|
|
dst->Ptr = src->Ptr;
|
|
dst->Enabled = src->Enabled;
|
|
dst->Normalized = src->Normalized;
|
|
dst->Integer = src->Integer;
|
|
dst->_ElementSize = src->_ElementSize;
|
|
_mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
|
|
dst->_MaxElement = src->_MaxElement;
|
|
}
|
|
|
|
static void
|
|
init_array(struct gl_context *ctx,
|
|
struct gl_client_array *array, GLint size, GLint type)
|
|
{
|
|
array->Size = size;
|
|
array->Type = type;
|
|
array->Stride = 0;
|
|
array->StrideB = 0;
|
|
array->Ptr = NULL;
|
|
array->Enabled = GL_FALSE;
|
|
array->Normalized = GL_FALSE;
|
|
array->Integer = GL_FALSE;
|
|
array->_ElementSize = size * _mesa_sizeof_type(type);
|
|
/* Vertex array buffers */
|
|
_mesa_reference_buffer_object(ctx, &array->BufferObj,
|
|
ctx->Shared->NullBufferObj);
|
|
}
|
|
|
|
|
|
/**
|
|
* Initialize vertex array state for given context.
|
|
*/
|
|
void
|
|
_mesa_init_varray(struct gl_context *ctx, struct gl_array_attrib *array)
|
|
{
|
|
GLuint i;
|
|
|
|
/* Init the individual arrays */
|
|
for (i = 0; i < Elements(array->VertexAttrib); i++) {
|
|
switch (i) {
|
|
case VERT_ATTRIB_WEIGHT:
|
|
init_array(ctx, &array->VertexAttrib[VERT_ATTRIB_WEIGHT], 1, GL_FLOAT);
|
|
break;
|
|
case VERT_ATTRIB_NORMAL:
|
|
init_array(ctx, &array->VertexAttrib[VERT_ATTRIB_NORMAL], 3, GL_FLOAT);
|
|
break;
|
|
case VERT_ATTRIB_FOG:
|
|
init_array(ctx, &array->VertexAttrib[VERT_ATTRIB_FOG], 1, GL_FLOAT);
|
|
break;
|
|
case VERT_ATTRIB_COLOR_INDEX:
|
|
init_array(ctx, &array->VertexAttrib[VERT_ATTRIB_COLOR_INDEX], 1, GL_FLOAT);
|
|
break;
|
|
case VERT_ATTRIB_EDGEFLAG:
|
|
init_array(ctx, &array->VertexAttrib[VERT_ATTRIB_EDGEFLAG], 1, GL_BOOL);
|
|
break;
|
|
default:
|
|
init_array(ctx, &array->VertexAttrib[i], 4, GL_FLOAT);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Free vertex array state for given context.
|
|
*/
|
|
void
|
|
_mesa_free_varray_data(struct gl_context *ctx, struct gl_array_attrib* array)
|
|
{
|
|
GLuint i;
|
|
|
|
/* Uninit the individual arrays */
|
|
for (i = 0; i < Elements(array->VertexAttrib); i++)
|
|
{
|
|
_mesa_reference_buffer_object(ctx, &array->VertexAttrib[i].BufferObj, NULL);
|
|
memset(&array->VertexAttrib[i], 0, sizeof(struct gl_client_array));
|
|
}
|
|
}
|