From 3ab4eb6545a1b9e4c6117b170f417ecb6fdde97e Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Thu, 6 Feb 2003 21:47:33 +0000
Subject: [PATCH] Arkadi's mach64 patch

---
 include/QF/GL/qf_vid.h                   | 2 ++
 libs/video/renderer/gl/gl_dyn_part.c     | 7 +++++--
 libs/video/renderer/gl/gl_dyn_textures.c | 8 +++++---
 libs/video/targets/vid_common_gl.c       | 5 +++++
 4 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/include/QF/GL/qf_vid.h b/include/QF/GL/qf_vid.h
index 87a1b3d1b..2b7333e5e 100644
--- a/include/QF/GL/qf_vid.h
+++ b/include/QF/GL/qf_vid.h
@@ -43,6 +43,8 @@ extern GLenum					gl_mtex_enum;
 extern float					gldepthmin, gldepthmax;
 extern int						texture_extension_number;
 
+extern qboolean					gl_feature_mach64;
+
 void GL_EndRendering (void);
 void GL_BeginRendering (int *x, int *y, int *width, int *height);
 
diff --git a/libs/video/renderer/gl/gl_dyn_part.c b/libs/video/renderer/gl/gl_dyn_part.c
index f58ee1120..572d1bd19 100644
--- a/libs/video/renderer/gl/gl_dyn_part.c
+++ b/libs/video/renderer/gl/gl_dyn_part.c
@@ -28,7 +28,7 @@
 # include "config.h"
 #endif
 
-static __attribute__ ((unused)) const char rcsid[] = 
+static __attribute__ ((unused)) const char rcsid[] =
 	"$Id$";
 
 #ifdef HAVE_STRING_H
@@ -51,6 +51,7 @@ static __attribute__ ((unused)) const char rcsid[] =
 #include "QF/GL/funcs.h"
 #include "QF/GL/qf_explosions.h"
 #include "QF/GL/qf_textures.h"
+#include "QF/GL/qf_vid.h"
 
 #include "compat.h"
 #include "r_cvar.h"
@@ -85,6 +86,8 @@ particle_new (ptype_t type, int texnum, const vec3_t org, float scale,
 		return NULL;
 	}
 */
+	if(gl_feature_mach64 && type == pt_smokecloud && texnum == part_tex_smoke )
+		return;
 
 	part = &particles[numparticles++];
 
@@ -1057,7 +1060,7 @@ R_TeleportSplash_ID (const vec3_t org)
 
 				VectorCopy (dir, pdir);
 				VectorNormalize (pdir);
-				
+
 				rnd = rand ();
 				porg[0] = org[0] + i + (rnd & 3);
 				porg[1] = org[1] + j + ((rnd >> 2) & 3);
diff --git a/libs/video/renderer/gl/gl_dyn_textures.c b/libs/video/renderer/gl/gl_dyn_textures.c
index 314baf5f9..2fbafb200 100644
--- a/libs/video/renderer/gl/gl_dyn_textures.c
+++ b/libs/video/renderer/gl/gl_dyn_textures.c
@@ -54,6 +54,7 @@ int         part_tex_spark;
 */
 
 int			part_tex;
+GLint		part_tex_internal_format = 2;
 
 
 static void
@@ -67,7 +68,7 @@ GDT_InitParticleTexture (void)
 	qfglBindTexture (GL_TEXTURE_2D, part_tex);
 	qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 	qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-	qfglTexImage2D (GL_TEXTURE_2D, 0, 2, 64, 64, 0, GL_LUMINANCE_ALPHA,
+	qfglTexImage2D (GL_TEXTURE_2D, 0, part_tex_internal_format, 64, 64, 0, GL_LUMINANCE_ALPHA,
 					GL_UNSIGNED_BYTE, data);
 }
 
@@ -133,8 +134,7 @@ GDT_InitSmokeParticleTexture (void)
 
 	noise_plasma (&noise1[0][0], 32);
 	noise_diamondsquare (&noise2[0][0], 32, 4);
-	for (y = 0; y < 32; y++)
-	{
+	for (y = 0; y < 32; y++) {
 		dy2 = y - 16;
 		dy2 *= dy2;
 		for (x = 0; x < 32; x++) {
@@ -159,6 +159,8 @@ GDT_InitSmokeParticleTexture (void)
 void
 GDT_Init (void)
 {
+	if (gl_feature_mach64)
+		part_tex_internal_format = 4;
 	GDT_InitParticleTexture ();
 	GDT_InitDotParticleTexture ();
 	GDT_InitSparkParticleTexture ();
diff --git a/libs/video/targets/vid_common_gl.c b/libs/video/targets/vid_common_gl.c
index 394ff92ca..954b0c528 100644
--- a/libs/video/targets/vid_common_gl.c
+++ b/libs/video/targets/vid_common_gl.c
@@ -86,6 +86,8 @@ GLenum				gl_mtex_enum = GL_TEXTURE0_ARB;
 QF_glColorTableEXT	qglColorTableEXT = NULL;
 qboolean			is8bit = false;
 
+qboolean			gl_feature_mach64 = false;
+
 cvar_t      *gl_multitexture;
 cvar_t      *gl_vaelements_max;
 cvar_t      *gl_screenshot_byte_swap;
@@ -297,6 +299,9 @@ GL_Init_Common (void)
 
 	CheckMultiTextureExtensions ();
 	CheckVertexArraySize ();
+
+	if (strstr(gl_renderer, "Mesa DRI Mach64"))
+		gl_feature_mach64 = true;
 }
 
 void