1 /*
2 * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * 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 OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "main/drawtex.h"
25 #include "main/state.h"
26 #include "main/imports.h"
27 #include "main/mtypes.h"
28
29
30 static void
draw_texture(struct gl_context * ctx,GLfloat x,GLfloat y,GLfloat z,GLfloat width,GLfloat height)31 draw_texture(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
32 GLfloat width, GLfloat height)
33 {
34 if (!ctx->Extensions.OES_draw_texture) {
35 _mesa_error(ctx, GL_INVALID_OPERATION,
36 "glDrawTex(unsupported)");
37 return;
38 }
39 if (width <= 0.0f || height <= 0.0f) {
40 _mesa_error(ctx, GL_INVALID_VALUE, "glDrawTex(width or height <= 0)");
41 return;
42 }
43
44 _mesa_set_vp_override(ctx, GL_TRUE);
45
46 if (ctx->NewState)
47 _mesa_update_state(ctx);
48
49 assert(ctx->Driver.DrawTex);
50 ctx->Driver.DrawTex(ctx, x, y, z, width, height);
51
52 _mesa_set_vp_override(ctx, GL_FALSE);
53 }
54
55
56 void GLAPIENTRY
_mesa_DrawTexfOES(GLfloat x,GLfloat y,GLfloat z,GLfloat width,GLfloat height)57 _mesa_DrawTexfOES(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height)
58 {
59 GET_CURRENT_CONTEXT(ctx);
60 draw_texture(ctx, x, y, z, width, height);
61 }
62
63
64 void GLAPIENTRY
_mesa_DrawTexfvOES(const GLfloat * coords)65 _mesa_DrawTexfvOES(const GLfloat *coords)
66 {
67 GET_CURRENT_CONTEXT(ctx);
68 draw_texture(ctx, coords[0], coords[1], coords[2], coords[3], coords[4]);
69 }
70
71
72 void GLAPIENTRY
_mesa_DrawTexiOES(GLint x,GLint y,GLint z,GLint width,GLint height)73 _mesa_DrawTexiOES(GLint x, GLint y, GLint z, GLint width, GLint height)
74 {
75 GET_CURRENT_CONTEXT(ctx);
76 draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
77 (GLfloat) width, (GLfloat) height);
78 }
79
80
81 void GLAPIENTRY
_mesa_DrawTexivOES(const GLint * coords)82 _mesa_DrawTexivOES(const GLint *coords)
83 {
84 GET_CURRENT_CONTEXT(ctx);
85 draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
86 (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
87 }
88
89
90 void GLAPIENTRY
_mesa_DrawTexsOES(GLshort x,GLshort y,GLshort z,GLshort width,GLshort height)91 _mesa_DrawTexsOES(GLshort x, GLshort y, GLshort z, GLshort width, GLshort height)
92 {
93 GET_CURRENT_CONTEXT(ctx);
94 draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
95 (GLfloat) width, (GLfloat) height);
96 }
97
98
99 void GLAPIENTRY
_mesa_DrawTexsvOES(const GLshort * coords)100 _mesa_DrawTexsvOES(const GLshort *coords)
101 {
102 GET_CURRENT_CONTEXT(ctx);
103 draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
104 (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
105 }
106
107
108 void GLAPIENTRY
_mesa_DrawTexx(GLfixed x,GLfixed y,GLfixed z,GLfixed width,GLfixed height)109 _mesa_DrawTexx(GLfixed x, GLfixed y, GLfixed z, GLfixed width, GLfixed height)
110 {
111 GET_CURRENT_CONTEXT(ctx);
112 draw_texture(ctx,
113 (GLfloat) x / 65536.0f,
114 (GLfloat) y / 65536.0f,
115 (GLfloat) z / 65536.0f,
116 (GLfloat) width / 65536.0f,
117 (GLfloat) height / 65536.0f);
118 }
119
120
121 void GLAPIENTRY
_mesa_DrawTexxv(const GLfixed * coords)122 _mesa_DrawTexxv(const GLfixed *coords)
123 {
124 GET_CURRENT_CONTEXT(ctx);
125 draw_texture(ctx,
126 (GLfloat) coords[0] / 65536.0f,
127 (GLfloat) coords[1] / 65536.0f,
128 (GLfloat) coords[2] / 65536.0f,
129 (GLfloat) coords[3] / 65536.0f,
130 (GLfloat) coords[4] / 65536.0f);
131 }
132