reactos/dll/opengl/mesa/src/mesa/main/drawtex.c

   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
  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
  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
  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
  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
  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
  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
 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
 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
 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 */