hedgewars/uTextures.pas
author nemo
Sun, 06 Nov 2011 13:00:25 -0500
changeset 6303 3edb3c857995
parent 5441 39962b855540
child 6305 5f7480c2a08d
permissions -rw-r--r--
Add missing grayscale conversions
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
4976
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     1
(*
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     2
 * Hedgewars, a free turn based strategy game
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     3
 * Copyright (c) 2004-2011 Andrey Korotaev <unC0Rr@gmail.com>
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     4
 *
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     5
 * This program is free software; you can redistribute it and/or modify
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     6
 * it under the terms of the GNU General Public License as published by
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     7
 * the Free Software Foundation; version 2 of the License
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     8
 *
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
     9
 * This program is distributed in the hope that it will be useful,
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    10
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    11
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    12
 * GNU General Public License for more details.
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    13
 *
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    14
 * You should have received a copy of the GNU General Public License
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    15
 * along with this program; if not, write to the Free Software
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    16
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    17
 *)
088d40d8aba2 Happy 2011 :)
koda
parents: 4901
diff changeset
    18
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    19
{$INCLUDE "options.inc"}
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    20
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    21
unit uTextures;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    22
interface
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    23
uses SDLh, uTypes;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    24
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    25
function  NewTexture(width, height: Longword; buf: Pointer): PTexture;
6303
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
    26
procedure Surface2GrayScale(surf: PSDL_Surface);
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    27
function  Surface2Tex(surf: PSDL_Surface; enableClamp: boolean): PTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    28
procedure FreeTexture(tex: PTexture);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    29
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    30
procedure initModule;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    31
procedure freeModule;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    32
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    33
implementation
4403
unc0rr
parents: 4381
diff changeset
    34
uses GLunit, uUtils, uVariables, uConsts, uDebug;
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    35
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    36
var TextureList: PTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    37
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    38
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    39
procedure SetTextureParameters(enableClamp: Boolean);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    40
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    41
    if enableClamp and ((cReducedQuality and rqClampLess) = 0) then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    42
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    43
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    44
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE)
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    45
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    46
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    47
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    48
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    49
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    50
procedure ResetVertexArrays(texture: PTexture);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    51
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    52
with texture^ do
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    53
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    54
    vb[0].X:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    55
    vb[0].Y:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    56
    vb[1].X:= w;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    57
    vb[1].Y:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    58
    vb[2].X:= w;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    59
    vb[2].Y:= h;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    60
    vb[3].X:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    61
    vb[3].Y:= h;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    62
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    63
    tb[0].X:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    64
    tb[0].Y:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    65
    tb[1].X:= rx;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    66
    tb[1].Y:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    67
    tb[2].X:= rx;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    68
    tb[2].Y:= ry;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    69
    tb[3].X:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    70
    tb[3].Y:= ry
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    71
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    72
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    73
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    74
function NewTexture(width, height: Longword; buf: Pointer): PTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    75
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    76
new(NewTexture);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    77
NewTexture^.PrevTexture:= nil;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    78
NewTexture^.NextTexture:= nil;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    79
NewTexture^.Scale:= 1;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    80
if TextureList <> nil then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    81
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    82
    TextureList^.PrevTexture:= NewTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    83
    NewTexture^.NextTexture:= TextureList
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    84
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    85
TextureList:= NewTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    86
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    87
NewTexture^.w:= width;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    88
NewTexture^.h:= height;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    89
NewTexture^.rx:= 1.0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    90
NewTexture^.ry:= 1.0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    91
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    92
ResetVertexArrays(NewTexture);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    93
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    94
glGenTextures(1, @NewTexture^.id);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    95
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    96
glBindTexture(GL_TEXTURE_2D, NewTexture^.id);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    97
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buf);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    98
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
    99
SetTextureParameters(true);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   100
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   101
6303
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   102
procedure Surface2GrayScale(surf: PSDL_Surface);
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   103
var tw, th, x, y: Longword;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   104
    tmpp: pointer;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   105
    fromP4: PLongWordArray;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   106
begin
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   107
fromP4:= Surf^.pixels;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   108
for y:= 0 to Pred(Surf^.h) do
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   109
    begin
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   110
    for x:= 0 to Pred(Surf^.w) do 
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   111
        begin
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   112
        tw:= fromP4^[x];
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   113
        tw:= round((tw shr RShift and $FF) * RGB_LUMINANCE_RED +  
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   114
              (tw shr GShift and $FF) * RGB_LUMINANCE_GREEN + 
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   115
              (tw shr BShift and $FF) * RGB_LUMINANCE_BLUE);
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   116
        if tw > 255 then tw:= 255;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   117
        tw:= (tw and $FF shl RShift) or (tw and $FF shl BShift) or (tw and $FF shl GShift) or (fromP4^[x] and AMask);
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   118
        fromP4^[x]:= tw;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   119
        end;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   120
    fromP4:= @(fromP4^[Surf^.pitch div 4])
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   121
    end;
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   122
end;
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   123
function Surface2Tex(surf: PSDL_Surface; enableClamp: boolean): PTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   124
var tw, th, x, y: Longword;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   125
    tmpp: pointer;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   126
    fromP4, toP4: PLongWordArray;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   127
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   128
new(Surface2Tex);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   129
Surface2Tex^.PrevTexture:= nil;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   130
Surface2Tex^.NextTexture:= nil;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   131
if TextureList <> nil then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   132
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   133
    TextureList^.PrevTexture:= Surface2Tex;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   134
    Surface2Tex^.NextTexture:= TextureList
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   135
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   136
TextureList:= Surface2Tex;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   137
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   138
Surface2Tex^.w:= surf^.w;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   139
Surface2Tex^.h:= surf^.h;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   140
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   141
if (surf^.format^.BytesPerPixel <> 4) then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   142
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   143
    TryDo(false, 'Surface2Tex failed, expecting 32 bit surface', true);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   144
    Surface2Tex^.id:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   145
    exit
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   146
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   147
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   148
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   149
glGenTextures(1, @Surface2Tex^.id);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   150
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   151
glBindTexture(GL_TEXTURE_2D, Surface2Tex^.id);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   152
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   153
if SDL_MustLock(surf) then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   154
    SDLTry(SDL_LockSurface(surf) >= 0, true);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   155
5441
39962b855540 Add grayscale option for 3d, helps with colour clashing
nemo
parents: 4976
diff changeset
   156
fromP4:= Surf^.pixels;
39962b855540 Add grayscale option for 3d, helps with colour clashing
nemo
parents: 4976
diff changeset
   157
6303
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   158
if cGrayScale then Surface2GrayScale(Surf);
3edb3c857995 Add missing grayscale conversions
nemo
parents: 5441
diff changeset
   159
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   160
if (not SupportNPOTT) and (not (isPowerOf2(Surf^.w) and isPowerOf2(Surf^.h))) then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   161
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   162
    tw:= toPowerOf2(Surf^.w);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   163
    th:= toPowerOf2(Surf^.h);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   164
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   165
    Surface2Tex^.rx:= Surf^.w / tw;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   166
    Surface2Tex^.ry:= Surf^.h / th;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   167
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   168
    GetMem(tmpp, tw * th * surf^.format^.BytesPerPixel);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   169
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   170
    fromP4:= Surf^.pixels;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   171
    toP4:= tmpp;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   172
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   173
    for y:= 0 to Pred(Surf^.h) do
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   174
        begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   175
        for x:= 0 to Pred(Surf^.w) do toP4^[x]:= fromP4^[x];
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   176
        for x:= Surf^.w to Pred(tw) do toP4^[x]:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   177
        toP4:= @(toP4^[tw]);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   178
        fromP4:= @(fromP4^[Surf^.pitch div 4])
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   179
        end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   180
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   181
    for y:= Surf^.h to Pred(th) do
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   182
        begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   183
        for x:= 0 to Pred(tw) do toP4^[x]:= 0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   184
        toP4:= @(toP4^[tw])
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   185
        end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   186
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   187
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tw, th, 0, GL_RGBA, GL_UNSIGNED_BYTE, tmpp);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   188
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   189
    FreeMem(tmpp, tw * th * surf^.format^.BytesPerPixel)
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   190
    end
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   191
else
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   192
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   193
    Surface2Tex^.rx:= 1.0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   194
    Surface2Tex^.ry:= 1.0;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   195
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, surf^.w, surf^.h, 0, GL_RGBA, GL_UNSIGNED_BYTE, surf^.pixels);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   196
    end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   197
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   198
ResetVertexArrays(Surface2Tex);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   199
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   200
if SDL_MustLock(surf) then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   201
    SDL_UnlockSurface(surf);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   202
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   203
SetTextureParameters(enableClamp);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   204
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   205
4901
d1e2d82d9ccc Thou shalt not leak!
sheepluva
parents: 4403
diff changeset
   206
// deletes texture and frees the memory allocated for it.
d1e2d82d9ccc Thou shalt not leak!
sheepluva
parents: 4403
diff changeset
   207
// if nil is passed nothing is done
4375
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   208
procedure FreeTexture(tex: PTexture);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   209
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   210
    if tex <> nil then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   211
    begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   212
        if tex^.NextTexture <> nil then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   213
            tex^.NextTexture^.PrevTexture:= tex^.PrevTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   214
        if tex^.PrevTexture <> nil then
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   215
            tex^.PrevTexture^.NextTexture:= tex^.NextTexture
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   216
        else
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   217
            TextureList:= tex^.NextTexture;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   218
        glDeleteTextures(1, @tex^.id);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   219
        Dispose(tex);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   220
    end
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   221
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   222
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   223
procedure initModule;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   224
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   225
TextureList:= nil;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   226
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   227
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   228
procedure freeModule;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   229
begin
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   230
    while TextureList <> nil do FreeTexture(TextureList);
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   231
end;
ae5507ddb989 Introduce uTextures
unC0Rr
parents:
diff changeset
   232
4901
d1e2d82d9ccc Thou shalt not leak!
sheepluva
parents: 4403
diff changeset
   233
end.