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/mfeatures.h"
28 #include "main/mtypes.h"
29
30
31 #if FEATURE_OES_draw_texture
32
33
34 static void
draw_texture(struct gl_context * ctx,GLfloat x,GLfloat y,GLfloat z,GLfloat width,GLfloat height)35 draw_texture(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
36 GLfloat width, GLfloat height)
37 {
38 if (!ctx->Extensions.OES_draw_texture) {
39 _mesa_error(ctx, GL_INVALID_OPERATION,
40 "glDrawTex(unsupported)");
41 return;
42 }
43 if (width <= 0.0f || height <= 0.0f) {
44 _mesa_error(ctx, GL_INVALID_VALUE, "glDrawTex(width or height <= 0)");
45 return;
46 }
47
48 _mesa_set_vp_override(ctx, GL_TRUE);
49
50 if (ctx->NewState)
51 _mesa_update_state(ctx);
52
53 ASSERT(ctx->Driver.DrawTex);
54 ctx->Driver.DrawTex(ctx, x, y, z, width, height);
55
56 _mesa_set_vp_override(ctx, GL_FALSE);
57 }
58
59
60 void GLAPIENTRY
_mesa_DrawTexf(GLfloat x,GLfloat y,GLfloat z,GLfloat width,GLfloat height)61 _mesa_DrawTexf(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height)
62 {
63 GET_CURRENT_CONTEXT(ctx);
64 draw_texture(ctx, x, y, z, width, height);
65 }
66
67
68 void GLAPIENTRY
_mesa_DrawTexfv(const GLfloat * coords)69 _mesa_DrawTexfv(const GLfloat *coords)
70 {
71 GET_CURRENT_CONTEXT(ctx);
72 draw_texture(ctx, coords[0], coords[1], coords[2], coords[3], coords[4]);
73 }
74
75
76 void GLAPIENTRY
_mesa_DrawTexi(GLint x,GLint y,GLint z,GLint width,GLint height)77 _mesa_DrawTexi(GLint x, GLint y, GLint z, GLint width, GLint height)
78 {
79 GET_CURRENT_CONTEXT(ctx);
80 draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
81 (GLfloat) width, (GLfloat) height);
82 }
83
84
85 void GLAPIENTRY
_mesa_DrawTexiv(const GLint * coords)86 _mesa_DrawTexiv(const GLint *coords)
87 {
88 GET_CURRENT_CONTEXT(ctx);
89 draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
90 (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
91 }
92
93
94 void GLAPIENTRY
_mesa_DrawTexs(GLshort x,GLshort y,GLshort z,GLshort width,GLshort height)95 _mesa_DrawTexs(GLshort x, GLshort y, GLshort z, GLshort width, GLshort height)
96 {
97 GET_CURRENT_CONTEXT(ctx);
98 draw_texture(ctx, (GLfloat) x, (GLfloat) y, (GLfloat) z,
99 (GLfloat) width, (GLfloat) height);
100 }
101
102
103 void GLAPIENTRY
_mesa_DrawTexsv(const GLshort * coords)104 _mesa_DrawTexsv(const GLshort *coords)
105 {
106 GET_CURRENT_CONTEXT(ctx);
107 draw_texture(ctx, (GLfloat) coords[0], (GLfloat) coords[1],
108 (GLfloat) coords[2], (GLfloat) coords[3], (GLfloat) coords[4]);
109 }
110
111
112 void GLAPIENTRY
_mesa_DrawTexx(GLfixed x,GLfixed y,GLfixed z,GLfixed width,GLfixed height)113 _mesa_DrawTexx(GLfixed x, GLfixed y, GLfixed z, GLfixed width, GLfixed height)
114 {
115 GET_CURRENT_CONTEXT(ctx);
116 draw_texture(ctx,
117 (GLfloat) x / 65536.0f,
118 (GLfloat) y / 65536.0f,
119 (GLfloat) z / 65536.0f,
120 (GLfloat) width / 65536.0f,
121 (GLfloat) height / 65536.0f);
122 }
123
124
125 void GLAPIENTRY
_mesa_DrawTexxv(const GLfixed * coords)126 _mesa_DrawTexxv(const GLfixed *coords)
127 {
128 GET_CURRENT_CONTEXT(ctx);
129 draw_texture(ctx,
130 (GLfloat) coords[0] / 65536.0f,
131 (GLfloat) coords[1] / 65536.0f,
132 (GLfloat) coords[2] / 65536.0f,
133 (GLfloat) coords[3] / 65536.0f,
134 (GLfloat) coords[4] / 65536.0f);
135 }
136
137 #endif /* FEATURE_OES_draw_texture */
138