| 1 | package CFClient::OpenGL; |
1 | package CFPlus::OpenGL; |
| 2 | |
2 | |
| 3 | use strict; |
3 | use strict; |
| 4 | |
4 | |
| 5 | #use CFClient; |
5 | use Carp (); |
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6 | use CFPlus; |
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7 | |
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8 | our %GL_EXT; |
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9 | our $GL_VERSION; |
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10 | |
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11 | our $GL_NPOT; |
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12 | |
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13 | our $DEBUG = 1; |
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14 | our %INIT_HOOK; |
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15 | our %SHUTDOWN_HOOK; |
| 6 | |
16 | |
| 7 | sub import { |
17 | sub import { |
| 8 | my $caller = caller; |
18 | my $caller = caller; |
| 9 | |
19 | |
| 10 | no strict; |
20 | no strict; |
| 11 | |
21 | |
| 12 | my $symtab = *{"main::CFClient::OpenGL::"}{HASH}; |
22 | my $symtab = *{"main::CFPlus::OpenGL::"}{HASH}; |
| 13 | |
23 | |
| 14 | for (keys %$symtab) { |
24 | for (keys %$symtab) { |
| 15 | *{"$caller\::$_"} = \&$_ |
25 | *{"$caller\::$_"} = *$_ |
| 16 | if /^(?:gl|GL_)/; |
26 | if /^(?:gl[A-Z_]|GL_)/; |
| 17 | } |
27 | } |
| 18 | } |
28 | } |
| 19 | |
29 | |
| 20 | 1 |
30 | sub init { |
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31 | $GL_VERSION = gl_version * 1; |
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32 | %GL_EXT = map +($_ => 1), split /\s+/, gl_extensions; |
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33 | |
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34 | # $GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2; |
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35 | $GL_NPOT = $GL_VERSION >= 2; # some pre-2.0 cards seem to fall back to software rendering |
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36 | $GL_NPOT = 0 if gl_vendor =~ /ATI Technologies/; # ATI doesn't get it right... |
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37 | |
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38 | glDisable GL_COLOR_MATERIAL; |
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39 | glShadeModel GL_FLAT; |
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40 | glDisable GL_DITHER; |
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41 | glDisable GL_DEPTH_TEST; |
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42 | glDepthMask 0; |
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43 | |
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44 | my $hint = $::FAST ? GL_FASTEST : GL_NICEST; |
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45 | glHint GL_PERSPECTIVE_CORRECTION_HINT, $hint; |
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46 | glHint GL_POINT_SMOOTH_HINT , $hint; |
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47 | glHint GL_LINE_SMOOTH_HINT , $hint; |
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48 | glHint GL_POLYGON_SMOOTH_HINT , $hint; |
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49 | glHint GL_GENERATE_MIPMAP_HINT , $hint; |
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50 | #glDrawBuffer GL_BACK; |
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51 | #glReadBuffer GL_BACK; |
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52 | |
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53 | $_->() for values %INIT_HOOK; |
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54 | } |
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55 | |
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56 | sub shutdown { |
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57 | $_->() for values %SHUTDOWN_HOOK; |
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58 | } |
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59 | |
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60 | sub gl_check { |
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61 | return unless $DEBUG; |
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62 | |
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63 | if (my $error = glGetError) { |
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64 | my ($format, @args) = @_; |
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65 | Carp::cluck sprintf "opengl error %x while $format", $error, @args; |
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66 | } |
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67 | } |
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68 | |
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69 | 1; |
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70 | |
