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Diffstat (limited to 'src/mesa/drivers/dri/radeon/radeon_lighting.c')
-rw-r--r--src/mesa/drivers/dri/radeon/radeon_lighting.c682
1 files changed, 682 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_lighting.c b/src/mesa/drivers/dri/radeon/radeon_lighting.c
new file mode 100644
index 0000000000..44e00af0ef
--- /dev/null
+++ b/src/mesa/drivers/dri/radeon/radeon_lighting.c
@@ -0,0 +1,682 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/radeon/radeon_state.c,v 1.5 2002/09/16 18:05:20 eich Exp $ */
+/*
+ * Copyright 2000, 2001 VA Linux Systems Inc., Fremont, California.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Gareth Hughes <gareth@valinux.com>
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "glheader.h"
+#include "imports.h"
+#include "api_arrayelt.h"
+/* #include "mmath.h" */
+#include "enums.h"
+#include "colormac.h"
+
+
+#include "radeon_context.h"
+#include "radeon_ioctl.h"
+#include "radeon_state.h"
+#include "radeon_tcl.h"
+#include "radeon_tex.h"
+#include "radeon_vtxfmt.h"
+
+
+
+/* =============================================================
+ * Materials
+ */
+
+
+/* Update on colormaterial, material emmissive/ambient,
+ * lightmodel.globalambient
+ */
+void update_global_ambient( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ float *fcmd = (float *)RADEON_DB_STATE( glt );
+
+ /* Need to do more if both emmissive & ambient are PREMULT:
+ */
+ if ((rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &
+ ((3 << RADEON_EMISSIVE_SOURCE_SHIFT) |
+ (3 << RADEON_AMBIENT_SOURCE_SHIFT))) == 0)
+ {
+ COPY_3V( &fcmd[GLT_RED],
+ ctx->Light.Material[0].Emission);
+ ACC_SCALE_3V( &fcmd[GLT_RED],
+ ctx->Light.Model.Ambient,
+ ctx->Light.Material[0].Ambient);
+ }
+ else
+ {
+ COPY_3V( &fcmd[GLT_RED], ctx->Light.Model.Ambient );
+ }
+
+ RADEON_DB_STATECHANGE(rmesa, &rmesa->hw.glt);
+}
+
+/* Update on change to
+ * - light[p].colors
+ * - light[p].enabled
+ * - material,
+ * - colormaterial enabled
+ * - colormaterial bitmask
+ */
+void update_light_colors( GLcontext *ctx, GLuint p )
+{
+ struct gl_light *l = &ctx->Light.Light[p];
+
+/* fprintf(stderr, "%s\n", __FUNCTION__); */
+
+ if (l->Enabled) {
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ float *fcmd = (float *)RADEON_DB_STATE( lit[p] );
+ GLuint bitmask = ctx->Light.ColorMaterialBitmask;
+ struct gl_material *mat = &ctx->Light.Material[0];
+
+ COPY_4V( &fcmd[LIT_AMBIENT_RED], l->Ambient );
+ COPY_4V( &fcmd[LIT_DIFFUSE_RED], l->Diffuse );
+ COPY_4V( &fcmd[LIT_SPECULAR_RED], l->Specular );
+
+ if (!ctx->Light.ColorMaterialEnabled)
+ bitmask = 0;
+
+ if ((bitmask & FRONT_AMBIENT_BIT) == 0)
+ SELF_SCALE_3V( &fcmd[LIT_AMBIENT_RED], mat->Ambient );
+
+ if ((bitmask & FRONT_DIFFUSE_BIT) == 0)
+ SELF_SCALE_3V( &fcmd[LIT_DIFFUSE_RED], mat->Diffuse );
+
+ if ((bitmask & FRONT_SPECULAR_BIT) == 0)
+ SELF_SCALE_3V( &fcmd[LIT_SPECULAR_RED], mat->Specular );
+
+ RADEON_DB_STATECHANGE( rmesa, &rmesa->hw.lit[p] );
+ }
+}
+
+/* Also fallback for asym colormaterial mode in twoside lighting...
+ */
+void check_twoside_fallback( GLcontext *ctx )
+{
+ GLboolean fallback = GL_FALSE;
+
+ if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) {
+ if (memcmp( &ctx->Light.Material[0],
+ &ctx->Light.Material[1],
+ sizeof(struct gl_material)) != 0)
+ fallback = GL_TRUE;
+ else if (ctx->Light.ColorMaterialEnabled &&
+ (ctx->Light.ColorMaterialBitmask & BACK_MATERIAL_BITS) !=
+ ((ctx->Light.ColorMaterialBitmask & FRONT_MATERIAL_BITS)<<1))
+ fallback = GL_TRUE;
+ }
+
+ TCL_FALLBACK( ctx, RADEON_TCL_FALLBACK_LIGHT_TWOSIDE, fallback );
+}
+
+void radeonColorMaterial( GLcontext *ctx, GLenum face, GLenum mode )
+{
+ if (ctx->Light.ColorMaterialEnabled) {
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ GLuint light_model_ctl = rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL];
+ GLuint mask = ctx->Light.ColorMaterialBitmask;
+
+ /* Default to PREMULT:
+ */
+ light_model_ctl &= ~((3 << RADEON_EMISSIVE_SOURCE_SHIFT) |
+ (3 << RADEON_AMBIENT_SOURCE_SHIFT) |
+ (3 << RADEON_DIFFUSE_SOURCE_SHIFT) |
+ (3 << RADEON_SPECULAR_SOURCE_SHIFT));
+
+ if (mask & FRONT_EMISSION_BIT) {
+ light_model_ctl |= (RADEON_LM_SOURCE_VERTEX_DIFFUSE <<
+ RADEON_EMISSIVE_SOURCE_SHIFT);
+ }
+
+ if (mask & FRONT_AMBIENT_BIT) {
+ light_model_ctl |= (RADEON_LM_SOURCE_VERTEX_DIFFUSE <<
+ RADEON_AMBIENT_SOURCE_SHIFT);
+ }
+
+ if (mask & FRONT_DIFFUSE_BIT) {
+ light_model_ctl |= (RADEON_LM_SOURCE_VERTEX_DIFFUSE <<
+ RADEON_DIFFUSE_SOURCE_SHIFT);
+ }
+
+ if (mask & FRONT_SPECULAR_BIT) {
+ light_model_ctl |= (RADEON_LM_SOURCE_VERTEX_DIFFUSE <<
+ RADEON_SPECULAR_SOURCE_SHIFT);
+ }
+
+ if (light_model_ctl != rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL]) {
+ GLuint p;
+
+ RADEON_STATECHANGE( rmesa, tcl );
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] = light_model_ctl;
+
+ for (p = 0 ; p < MAX_LIGHTS; p++)
+ update_light_colors( ctx, p );
+ update_global_ambient( ctx );
+ }
+ }
+
+ check_twoside_fallback( ctx );
+}
+
+void radeonUpdateMaterial( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ GLfloat *fcmd = (GLfloat *)RADEON_DB_STATE( mtl );
+ GLuint p;
+ GLuint mask = ~0;
+
+ if (ctx->Light.ColorMaterialEnabled)
+ mask &= ~ctx->Light.ColorMaterialBitmask;
+
+ if (RADEON_DEBUG & DEBUG_STATE)
+ fprintf(stderr, "%s\n", __FUNCTION__);
+
+
+ if (mask & FRONT_EMISSION_BIT) {
+ fcmd[MTL_EMMISSIVE_RED] = ctx->Light.Material[0].Emission[0];
+ fcmd[MTL_EMMISSIVE_GREEN] = ctx->Light.Material[0].Emission[1];
+ fcmd[MTL_EMMISSIVE_BLUE] = ctx->Light.Material[0].Emission[2];
+ fcmd[MTL_EMMISSIVE_ALPHA] = ctx->Light.Material[0].Emission[3];
+ }
+ if (mask & FRONT_AMBIENT_BIT) {
+ fcmd[MTL_AMBIENT_RED] = ctx->Light.Material[0].Ambient[0];
+ fcmd[MTL_AMBIENT_GREEN] = ctx->Light.Material[0].Ambient[1];
+ fcmd[MTL_AMBIENT_BLUE] = ctx->Light.Material[0].Ambient[2];
+ fcmd[MTL_AMBIENT_ALPHA] = ctx->Light.Material[0].Ambient[3];
+ }
+ if (mask & FRONT_DIFFUSE_BIT) {
+ fcmd[MTL_DIFFUSE_RED] = ctx->Light.Material[0].Diffuse[0];
+ fcmd[MTL_DIFFUSE_GREEN] = ctx->Light.Material[0].Diffuse[1];
+ fcmd[MTL_DIFFUSE_BLUE] = ctx->Light.Material[0].Diffuse[2];
+ fcmd[MTL_DIFFUSE_ALPHA] = ctx->Light.Material[0].Diffuse[3];
+ }
+ if (mask & FRONT_SPECULAR_BIT) {
+ fcmd[MTL_SPECULAR_RED] = ctx->Light.Material[0].Specular[0];
+ fcmd[MTL_SPECULAR_GREEN] = ctx->Light.Material[0].Specular[1];
+ fcmd[MTL_SPECULAR_BLUE] = ctx->Light.Material[0].Specular[2];
+ fcmd[MTL_SPECULAR_ALPHA] = ctx->Light.Material[0].Specular[3];
+ }
+ if (mask & FRONT_SHININESS_BIT) {
+ fcmd[MTL_SHININESS] = ctx->Light.Material[0].Shininess;
+ }
+
+ if (RADEON_DB_STATECHANGE( rmesa, &rmesa->hw.mtl )) {
+ for (p = 0 ; p < MAX_LIGHTS; p++)
+ update_light_colors( ctx, p );
+
+ check_twoside_fallback( ctx );
+ update_global_ambient( ctx );
+ }
+ else if (RADEON_DEBUG & (DEBUG_PRIMS|DEBUG_STATE))
+ fprintf(stderr, "%s: Elided noop material call\n", __FUNCTION__);
+}
+
+/* _NEW_LIGHT
+ * _NEW_MODELVIEW
+ * _MESA_NEW_NEED_EYE_COORDS
+ *
+ * Uses derived state from mesa:
+ * _VP_inf_norm
+ * _h_inf_norm
+ * _Position
+ * _NormDirection
+ * _ModelViewInvScale
+ * _NeedEyeCoords
+ * _EyeZDir
+ *
+ * which are calculated in light.c and are correct for the current
+ * lighting space (model or eye), hence dependencies on _NEW_MODELVIEW
+ * and _MESA_NEW_NEED_EYE_COORDS.
+ */
+void radeonUpdateLighting( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+
+ /* Have to check these, or have an automatic shortcircuit mechanism
+ * to remove noop statechanges. (Or just do a better job on the
+ * front end).
+ */
+ {
+ GLuint tmp = rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL];
+
+ if (ctx->_NeedEyeCoords)
+ tmp &= ~RADEON_LIGHT_IN_MODELSPACE;
+ else
+ tmp |= RADEON_LIGHT_IN_MODELSPACE;
+
+
+ /* Leave this test disabled: (unexplained q3 lockup) (even with
+ new packets)
+ */
+ if (tmp != rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL])
+ {
+ RADEON_STATECHANGE( rmesa, tcl );
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] = tmp;
+ }
+ }
+
+ {
+ GLfloat *fcmd = (GLfloat *)RADEON_DB_STATE( eye );
+ fcmd[EYE_X] = ctx->_EyeZDir[0];
+ fcmd[EYE_Y] = ctx->_EyeZDir[1];
+ fcmd[EYE_Z] = - ctx->_EyeZDir[2];
+ fcmd[EYE_RESCALE_FACTOR] = ctx->_ModelViewInvScale;
+ RADEON_DB_STATECHANGE( rmesa, &rmesa->hw.eye );
+ }
+
+
+/* RADEON_STATECHANGE( rmesa, glt ); */
+
+ if (ctx->Light.Enabled) {
+ GLint p;
+ for (p = 0 ; p < MAX_LIGHTS; p++) {
+ if (ctx->Light.Light[p].Enabled) {
+ struct gl_light *l = &ctx->Light.Light[p];
+ GLfloat *fcmd = (GLfloat *)RADEON_DB_STATE( lit[p] );
+
+ if (l->EyePosition[3] == 0.0) {
+ COPY_3FV( &fcmd[LIT_POSITION_X], l->_VP_inf_norm );
+ COPY_3FV( &fcmd[LIT_DIRECTION_X], l->_h_inf_norm );
+ fcmd[LIT_POSITION_W] = 0;
+ fcmd[LIT_DIRECTION_W] = 0;
+ } else {
+ COPY_4V( &fcmd[LIT_POSITION_X], l->_Position );
+ fcmd[LIT_DIRECTION_X] = -l->_NormDirection[0];
+ fcmd[LIT_DIRECTION_Y] = -l->_NormDirection[1];
+ fcmd[LIT_DIRECTION_Z] = -l->_NormDirection[2];
+ fcmd[LIT_DIRECTION_W] = 0;
+ }
+
+ RADEON_DB_STATECHANGE( rmesa, &rmesa->hw.lit[p] );
+ }
+ }
+ }
+}
+
+
+void radeonLightfv( GLcontext *ctx, GLenum light,
+ GLenum pname, const GLfloat *params )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ GLint p = light - GL_LIGHT0;
+ struct gl_light *l = &ctx->Light.Light[p];
+ GLfloat *fcmd = (GLfloat *)rmesa->hw.lit[p].cmd;
+
+
+ switch (pname) {
+ case GL_AMBIENT:
+ case GL_DIFFUSE:
+ case GL_SPECULAR:
+ update_light_colors( ctx, p );
+ break;
+
+ case GL_SPOT_DIRECTION:
+ /* picked up in update_light */
+ break;
+
+ case GL_POSITION: {
+ /* positions picked up in update_light, but can do flag here */
+ GLuint flag = (p&1)? RADEON_LIGHT_1_IS_LOCAL : RADEON_LIGHT_0_IS_LOCAL;
+ GLuint idx = TCL_PER_LIGHT_CTL_0 + p/2;
+
+ RADEON_STATECHANGE(rmesa, tcl);
+ if (l->EyePosition[3] != 0.0F)
+ rmesa->hw.tcl.cmd[idx] |= flag;
+ else
+ rmesa->hw.tcl.cmd[idx] &= ~flag;
+ break;
+ }
+
+ case GL_SPOT_EXPONENT:
+ RADEON_STATECHANGE(rmesa, lit[p]);
+ fcmd[LIT_SPOT_EXPONENT] = params[0];
+ break;
+
+ case GL_SPOT_CUTOFF: {
+ GLuint flag = (p&1) ? RADEON_LIGHT_1_IS_SPOT : RADEON_LIGHT_0_IS_SPOT;
+ GLuint idx = TCL_PER_LIGHT_CTL_0 + p/2;
+
+ RADEON_STATECHANGE(rmesa, lit[p]);
+ fcmd[LIT_SPOT_CUTOFF] = l->_CosCutoff;
+
+ RADEON_STATECHANGE(rmesa, tcl);
+ if (l->SpotCutoff != 180.0F)
+ rmesa->hw.tcl.cmd[idx] |= flag;
+ else
+ rmesa->hw.tcl.cmd[idx] &= ~flag;
+ break;
+ }
+
+ case GL_CONSTANT_ATTENUATION:
+ RADEON_STATECHANGE(rmesa, lit[p]);
+ fcmd[LIT_ATTEN_CONST] = params[0];
+ break;
+ case GL_LINEAR_ATTENUATION:
+ RADEON_STATECHANGE(rmesa, lit[p]);
+ fcmd[LIT_ATTEN_LINEAR] = params[0];
+ break;
+ case GL_QUADRATIC_ATTENUATION:
+ RADEON_STATECHANGE(rmesa, lit[p]);
+ fcmd[LIT_ATTEN_QUADRATIC] = params[0];
+ break;
+ default:
+ return;
+ }
+
+}
+
+
+
+
+void radeonLightModelfv( GLcontext *ctx, GLenum pname,
+ const GLfloat *param )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+
+ switch (pname) {
+ case GL_LIGHT_MODEL_AMBIENT:
+ update_global_ambient( ctx );
+ break;
+
+ case GL_LIGHT_MODEL_LOCAL_VIEWER:
+ RADEON_STATECHANGE( rmesa, tcl );
+ if (ctx->Light.Model.LocalViewer)
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LOCAL_VIEWER;
+ else
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &= ~RADEON_LOCAL_VIEWER;
+ break;
+
+ case GL_LIGHT_MODEL_TWO_SIDE:
+ RADEON_STATECHANGE( rmesa, tcl );
+ if (ctx->Light.Model.TwoSide)
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_LIGHT_TWOSIDE;
+ else
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~RADEON_LIGHT_TWOSIDE;
+
+ check_twoside_fallback( ctx );
+
+#if _HAVE_SWTNL
+ if (rmesa->TclFallback) {
+ radeonChooseRenderState( ctx );
+ radeonChooseVertexState( ctx );
+ }
+#endif
+ break;
+
+ case GL_LIGHT_MODEL_COLOR_CONTROL:
+ radeonUpdateSpecular(ctx);
+
+ RADEON_STATECHANGE( rmesa, tcl );
+ if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &=
+ ~RADEON_DIFFUSE_SPECULAR_COMBINE;
+ else
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |=
+ RADEON_DIFFUSE_SPECULAR_COMBINE;
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+/* =============================================================
+ * Fog
+ */
+
+
+static void radeonFogfv( GLcontext *ctx, GLenum pname, const GLfloat *param )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ union { int i; float f; } c, d;
+ GLchan col[4];
+
+ c.i = rmesa->hw.fog.cmd[FOG_C];
+ d.i = rmesa->hw.fog.cmd[FOG_D];
+
+ switch (pname) {
+ case GL_FOG_MODE:
+ if (!ctx->Fog.Enabled)
+ return;
+ RADEON_STATECHANGE(rmesa, tcl);
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] &= ~RADEON_TCL_FOG_MASK;
+ switch (ctx->Fog.Mode) {
+ case GL_LINEAR:
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_LINEAR;
+ if (ctx->Fog.Start == ctx->Fog.End) {
+ c.f = 1.0F;
+ d.f = 1.0F;
+ }
+ else {
+ c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start);
+ d.f = 1.0/(ctx->Fog.End-ctx->Fog.Start);
+ }
+ break;
+ case GL_EXP:
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_EXP;
+ c.f = 0.0;
+ d.f = ctx->Fog.Density;
+ break;
+ case GL_EXP2:
+ rmesa->hw.tcl.cmd[TCL_UCP_VERT_BLEND_CTL] |= RADEON_TCL_FOG_EXP2;
+ c.f = 0.0;
+ d.f = -(ctx->Fog.Density * ctx->Fog.Density);
+ break;
+ default:
+ return;
+ }
+ break;
+ case GL_FOG_DENSITY:
+ switch (ctx->Fog.Mode) {
+ case GL_EXP:
+ c.f = 0.0;
+ d.f = ctx->Fog.Density;
+ break;
+ case GL_EXP2:
+ c.f = 0.0;
+ d.f = -(ctx->Fog.Density * ctx->Fog.Density);
+ break;
+ default:
+ break;
+ }
+ break;
+ case GL_FOG_START:
+ case GL_FOG_END:
+ if (ctx->Fog.Mode == GL_LINEAR) {
+ if (ctx->Fog.Start == ctx->Fog.End) {
+ c.f = 1.0F;
+ d.f = 1.0F;
+ } else {
+ c.f = ctx->Fog.End/(ctx->Fog.End-ctx->Fog.Start);
+ d.f = 1.0/(ctx->Fog.End-ctx->Fog.Start);
+ }
+ }
+ break;
+ case GL_FOG_COLOR:
+ RADEON_STATECHANGE( rmesa, ctx );
+ UNCLAMPED_FLOAT_TO_RGB_CHAN( col, ctx->Fog.Color );
+ rmesa->hw.ctx.cmd[CTX_PP_FOG_COLOR] =
+ radeonPackColor( 4, col[0], col[1], col[2], 0 );
+ break;
+ case GL_FOG_COORDINATE_SOURCE_EXT:
+ /* What to do?
+ */
+ break;
+ default:
+ return;
+ }
+
+ if (c.i != rmesa->hw.fog.cmd[FOG_C] || d.i != rmesa->hw.fog.cmd[FOG_D]) {
+ RADEON_STATECHANGE( rmesa, fog );
+ rmesa->hw.fog.cmd[FOG_C] = c.i;
+ rmesa->hw.fog.cmd[FOG_D] = d.i;
+ }
+}
+
+/* Examine lighting and texture state to determine if separate specular
+ * should be enabled.
+ */
+void radeonUpdateSpecular( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ GLuint p = rmesa->hw.ctx.cmd[CTX_PP_CNTL];
+
+ if (NEED_SECONDARY_COLOR(ctx)) {
+ p |= RADEON_SPECULAR_ENABLE;
+ } else {
+ p &= ~RADEON_SPECULAR_ENABLE;
+ }
+
+ if ( rmesa->hw.ctx.cmd[CTX_PP_CNTL] != p ) {
+ RADEON_STATECHANGE( rmesa, ctx );
+ rmesa->hw.ctx.cmd[CTX_PP_CNTL] = p;
+ }
+
+ /* Bizzare: have to leave lighting enabled to get fog.
+ */
+ RADEON_STATECHANGE( rmesa, tcl );
+ if ((ctx->Light.Enabled &&
+ ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)) {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE;
+ }
+ else if (ctx->Fog.Enabled) {
+ if (ctx->Light.Enabled) {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE;
+ } else {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE;
+ }
+ }
+ else if (ctx->Light.Enabled) {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] |= RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] &= ~RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_LIGHTING_ENABLE;
+ } else if (ctx->Fog.ColorSumEnabled ) {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &= ~RADEON_LIGHTING_ENABLE;
+ } else {
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_SPECULAR;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXSEL] &= ~RADEON_TCL_COMPUTE_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] &= ~RADEON_TCL_VTX_PK_SPEC;
+ rmesa->hw.tcl.cmd[TCL_OUTPUT_VTXFMT] |= RADEON_TCL_VTX_PK_DIFFUSE;
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &= ~RADEON_LIGHTING_ENABLE;
+ }
+
+#if _HAVE_SWTNL
+ /* Update vertex/render formats
+ */
+ if (rmesa->TclFallback) {
+ radeonChooseRenderState( ctx );
+ radeonChooseVertexState( ctx );
+ }
+#endif
+}
+
+
+
+static void radeonLightingSpaceChange( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ GLboolean tmp;
+ RADEON_STATECHANGE( rmesa, tcl );
+
+ if (RADEON_DEBUG & DEBUG_STATE)
+ fprintf(stderr, "%s %d\n", __FUNCTION__, ctx->_NeedEyeCoords);
+
+ if (ctx->_NeedEyeCoords)
+ tmp = ctx->Transform.RescaleNormals;
+ else
+ tmp = !ctx->Transform.RescaleNormals;
+
+ if ( tmp ) {
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] |= RADEON_RESCALE_NORMALS;
+ } else {
+ rmesa->hw.tcl.cmd[TCL_LIGHT_MODEL_CTL] &= ~RADEON_RESCALE_NORMALS;
+ }
+}
+
+void radeonInitLightStateFuncs( GLcontext *ctx )
+{
+ radeonContextPtr rmesa = RADEON_CONTEXT(ctx);
+ int i;
+
+ ctx->Driver.LightModelfv = radeonLightModelfv;
+ ctx->Driver.Lightfv = radeonLightfv;
+ ctx->Driver.Fogfv = radeonFogfv;
+ ctx->Driver.LightingSpaceChange = radeonLightingSpaceChange;
+
+ for (i = 0 ; i < 8; i++) {
+ struct gl_light *l = &ctx->Light.Light[i];
+ GLenum p = GL_LIGHT0 + i;
+ *(float *)&(rmesa->hw.lit[i].cmd[LIT_RANGE_CUTOFF]) = FLT_MAX;
+
+ ctx->Driver.Lightfv( ctx, p, GL_AMBIENT, l->Ambient );
+ ctx->Driver.Lightfv( ctx, p, GL_DIFFUSE, l->Diffuse );
+ ctx->Driver.Lightfv( ctx, p, GL_SPECULAR, l->Specular );
+ ctx->Driver.Lightfv( ctx, p, GL_POSITION, 0 );
+ ctx->Driver.Lightfv( ctx, p, GL_SPOT_DIRECTION, 0 );
+ ctx->Driver.Lightfv( ctx, p, GL_SPOT_EXPONENT, &l->SpotExponent );
+ ctx->Driver.Lightfv( ctx, p, GL_SPOT_CUTOFF, &l->SpotCutoff );
+ ctx->Driver.Lightfv( ctx, p, GL_CONSTANT_ATTENUATION,
+ &l->ConstantAttenuation );
+ ctx->Driver.Lightfv( ctx, p, GL_LINEAR_ATTENUATION,
+ &l->LinearAttenuation );
+ ctx->Driver.Lightfv( ctx, p, GL_QUADRATIC_ATTENUATION,
+ &l->QuadraticAttenuation );
+ }
+
+ ctx->Driver.LightModelfv( ctx, GL_LIGHT_MODEL_AMBIENT,
+ ctx->Light.Model.Ambient );
+
+ ctx->Driver.Fogfv( ctx, GL_FOG_MODE, 0 );
+ ctx->Driver.Fogfv( ctx, GL_FOG_DENSITY, &ctx->Fog.Density );
+ ctx->Driver.Fogfv( ctx, GL_FOG_START, &ctx->Fog.Start );
+ ctx->Driver.Fogfv( ctx, GL_FOG_END, &ctx->Fog.End );
+ ctx->Driver.Fogfv( ctx, GL_FOG_COLOR, ctx->Fog.Color );
+ ctx->Driver.Fogfv( ctx, GL_FOG_COORDINATE_SOURCE_EXT, 0 );
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 20:59:38 +0000