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