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31 #include "glxclient.h"
33 #include "indirect_vertex_array.h"
35 #ifndef GLX_USE_APPLEGL
37 /*****************************************************************************/
40 * \name Vertex array pointer bridge functions
42 * When EXT_vertex_array was moved into the core GL spec, the \c count
43 * parameter was lost. This libGL really only wants to implement the GL 1.1
44 * version, but we need to support applications that were written to the old
45 * interface. These bridge functions are part of the glue that makes this
50 __indirect_glColorPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
51 GLsizei count
, const GLvoid
* pointer
)
54 __indirect_glColorPointer(size
, type
, stride
, pointer
);
58 __indirect_glEdgeFlagPointerEXT(GLsizei stride
,
59 GLsizei count
, const GLboolean
* pointer
)
62 __indirect_glEdgeFlagPointer(stride
, pointer
);
66 __indirect_glIndexPointerEXT(GLenum type
, GLsizei stride
,
67 GLsizei count
, const GLvoid
* pointer
)
70 __indirect_glIndexPointer(type
, stride
, pointer
);
74 __indirect_glNormalPointerEXT(GLenum type
, GLsizei stride
, GLsizei count
,
75 const GLvoid
* pointer
)
78 __indirect_glNormalPointer(type
, stride
, pointer
);
82 __indirect_glTexCoordPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
83 GLsizei count
, const GLvoid
* pointer
)
86 __indirect_glTexCoordPointer(size
, type
, stride
, pointer
);
90 __indirect_glVertexPointerEXT(GLint size
, GLenum type
, GLsizei stride
,
91 GLsizei count
, const GLvoid
* pointer
)
94 __indirect_glVertexPointer(size
, type
, stride
, pointer
);
99 /*****************************************************************************/
102 __indirect_glInterleavedArrays(GLenum format
, GLsizei stride
,
103 const GLvoid
* pointer
)
105 struct glx_context
*gc
= __glXGetCurrentContext();
106 __GLXattribute
*state
= (__GLXattribute
*) (gc
->client_state_private
);
108 #define NONE {0, 0, 0}
109 #define F(x) {GL_FLOAT, x, x * sizeof(GLfloat)}
110 #define UB4 {GL_UNSIGNED_BYTE, 4, 4 * sizeof(GLubyte)}
112 /* Each row in this array describes the elements of a particular
113 * interleaved array mode. Each column describes, in the order in which
114 * they appear in the interleaved arrays, one of the four possible types
115 * of vertex data that can appear in an interleaved array.
120 * The enum describing the GL type, as would be passed to the
121 * appropriate gl*Pointer function.
126 * Number of elements in the subarray, as would be passed (as the
127 * \c size parameter) to the appropriate gl*Pointer function.
132 * True size of a single element in the subarray, as would be passed
133 * (as the \c stride parameter) to the appropriate gl*Pointer
138 static const modes
[14][4] = {
139 /* texture color normal vertex */
140 {NONE
, NONE
, NONE
, F(2)}, /* GL_V2F */
141 {NONE
, NONE
, NONE
, F(3)}, /* GL_V3F */
142 {NONE
, UB4
, NONE
, F(2)}, /* GL_C4UB_V2F */
143 {NONE
, UB4
, NONE
, F(3)}, /* GL_C4UB_V3F */
144 {NONE
, F(3), NONE
, F(3)}, /* GL_C3F_V3F */
145 {NONE
, NONE
, F(3), F(3)}, /* GL_N3F_V3F */
146 {NONE
, F(4), F(3), F(3)}, /* GL_C4F_N3F_V3F */
147 {F(2), NONE
, NONE
, F(3)}, /* GL_T2F_V3F */
148 {F(4), NONE
, NONE
, F(4)}, /* GL_T4F_V4F */
149 {F(2), UB4
, NONE
, F(3)}, /* GL_T2F_C4UB_V3F */
150 {F(2), F(3), NONE
, F(3)}, /* GL_T2F_C3F_V3F */
151 {F(2), NONE
, F(3), F(3)}, /* GL_T2F_N3F_V3F */
152 {F(2), F(4), F(3), F(3)}, /* GL_T2F_C4F_N3F_V3F */
153 {F(4), F(4), F(3), F(4)}, /* GL_T4F_C4F_N3F_V4F */
159 GLint trueStride
, size
;
162 const int idx
= format
- GL_V2F
;
165 /* All valid formats are on the range [GL_V2F, GL_V2F+0x0D]. Since idx
166 * is just the format biased by -GL_V2F, all valid idx values are on the
169 if ((idx
< 0) || (idx
> 0x0D)) {
170 __glXSetError(gc
, GL_INVALID_ENUM
);
175 __glXSetError(gc
, GL_INVALID_VALUE
);
180 /* If the 'count' for a subarray is non-zero, then the offset of its
181 * first element is at the currently accumulated 'size'.
184 for (i
= 0; i
< 4; i
++) {
185 offsets
[i
] = (modes
[idx
][i
].count
!= 0) ? size
: -1;
186 size
+= modes
[idx
][i
].size
;
189 trueStride
= (stride
== 0) ? size
: stride
;
191 __glXArrayDisableAll(state
);
193 if (offsets
[0] >= 0) {
194 __indirect_glEnableClientState(GL_TEXTURE_COORD_ARRAY
);
195 __indirect_glTexCoordPointer(modes
[idx
][0].count
, GL_FLOAT
,
196 trueStride
, (const char *) pointer
);
198 if (offsets
[1] >= 0) {
199 __indirect_glEnableClientState(GL_COLOR_ARRAY
);
200 __indirect_glColorPointer(modes
[idx
][1].count
, modes
[idx
][1].type
,
202 (const char *) pointer
+ offsets
[1]);
204 if (offsets
[2] >= 0) {
205 __indirect_glEnableClientState(GL_NORMAL_ARRAY
);
206 __indirect_glNormalPointer(GL_FLOAT
, trueStride
,
207 (const char *) pointer
+ offsets
[2]);
209 __indirect_glEnableClientState(GL_VERTEX_ARRAY
);
210 __indirect_glVertexPointer(modes
[idx
][3].count
, GL_FLOAT
,
212 (const char *) pointer
+ offsets
[3]);