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annotate src/audio/SDL_mixer_MMX_VC.h @ 1012:f14e3059e138

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Date: Mon, 13 Dec 2004 21:28:18 -0500 From: Jonathan Atkins Subject: [SDL] SDL_SaveBMP width bugfix this fixes the pitch versus width difference that can happen (especially for 8bit and 24bit (with the exact RGBAmasks) surfaces) when you use SDL_SaveBMP. The problem was the pitch was used instead of the width, which in some cases is much wider than the screen area you really want to save...making for ugly crud on the saved image borders. This code has been tested with & without pitch overhangs...and with the right masks for 24 bit surfaces. I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Dec 2004 06:20:49 +0000
parents 72ef7ce609ef
children 450721ad5436
rev   line source
746
72ef7ce609ef Greatly simplified the SDL CPU info code
Sam Lantinga <slouken@libsdl.org>
parents: 574
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1 #if defined(USE_ASM_MIXER_VC)
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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2 // headers for MMX assembler version of SDL_MixAudio
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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3 // Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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4 // Converted to Intel ASM notation by Cth
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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5 // This code is licensed under the LGPL (see COPYING for details)
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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6 //
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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7 // Assumes buffer size in bytes is a multiple of 16
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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8 // Assumes SDL_MIX_MAXVOLUME = 128
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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9
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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10 void SDL_MixAudio_MMX_S16_VC(char* ,char* ,unsigned int ,int );
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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11 void SDL_MixAudio_MMX_S8_VC(char* ,char* ,unsigned int ,int );
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
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12 #endif