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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. #include "main/mtypes.h"
  28.  
  29.  
  30. static void
  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
  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
  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
  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
  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
  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
  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
  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
  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.