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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
commita0c4815433ccd57322f4f7703ca35e9ccfa59250 (patch)
treef5213802ec12adb86ec3136001c1c29fe5343700 /mesalib/src/mesa/tnl/t_context.c
parentc73dc01b6de45612b24dc2dd34fba24d81ebf46c (diff)
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Added MesaLib-7.6
Diffstat (limited to 'mesalib/src/mesa/tnl/t_context.c')
-rw-r--r--mesalib/src/mesa/tnl/t_context.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/mesalib/src/mesa/tnl/t_context.c b/mesalib/src/mesa/tnl/t_context.c
new file mode 100644
index 000000000..f2771cde0
--- /dev/null
+++ b/mesalib/src/mesa/tnl/t_context.c
@@ -0,0 +1,231 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.2
+ *
+ * Copyright (C) 1999-2008 Brian Paul 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL 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:
+ * Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+
+#include "main/glheader.h"
+#include "main/imports.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
+#include "main/light.h"
+#include "math/m_translate.h"
+#include "math/m_xform.h"
+
+#include "tnl.h"
+#include "t_context.h"
+#include "t_pipeline.h"
+#include "t_vp_build.h"
+
+#include "vbo/vbo.h"
+
+GLboolean
+_tnl_CreateContext( GLcontext *ctx )
+{
+ TNLcontext *tnl;
+
+ /* Create the TNLcontext structure
+ */
+ ctx->swtnl_context = tnl = (TNLcontext *) CALLOC( sizeof(TNLcontext) );
+
+ if (!tnl) {
+ return GL_FALSE;
+ }
+
+ /* Initialize the VB.
+ */
+ tnl->vb.Size = ctx->Const.MaxArrayLockSize + MAX_CLIPPED_VERTICES;
+
+
+ /* Initialize tnl state.
+ */
+ if (ctx->VertexProgram._MaintainTnlProgram) {
+ _tnl_install_pipeline( ctx, _tnl_vp_pipeline );
+ } else {
+ _tnl_install_pipeline( ctx, _tnl_default_pipeline );
+ }
+
+ tnl->NeedNdcCoords = GL_TRUE;
+ tnl->AllowVertexFog = GL_TRUE;
+ tnl->AllowPixelFog = GL_TRUE;
+
+ /* Set a few default values in the driver struct.
+ */
+ tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+ tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+ tnl->Driver.NotifyMaterialChange = _mesa_validate_all_lighting_tables;
+
+ tnl->nr_blocks = 0;
+
+ /* plug in the VBO drawing function */
+ vbo_set_draw_func(ctx, _tnl_vbo_draw_prims);
+
+ _math_init_transformation();
+ _math_init_translate();
+
+ return GL_TRUE;
+}
+
+
+void
+_tnl_DestroyContext( GLcontext *ctx )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+ _tnl_destroy_pipeline( ctx );
+
+ FREE(tnl);
+ ctx->swtnl_context = NULL;
+}
+
+
+void
+_tnl_InvalidateState( GLcontext *ctx, GLuint new_state )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ const struct gl_vertex_program *vp = ctx->VertexProgram._Current;
+ const struct gl_fragment_program *fp = ctx->FragmentProgram._Current;
+
+ if (new_state & (_NEW_HINT | _NEW_PROGRAM)) {
+ ASSERT(tnl->AllowVertexFog || tnl->AllowPixelFog);
+ tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+ || !tnl->AllowPixelFog) && !fp;
+ }
+
+ tnl->pipeline.new_state |= new_state;
+
+ /* Calculate tnl->render_inputs. This bitmask indicates which vertex
+ * attributes need to be emitted to the rasterizer.
+ */
+ if (ctx->Visual.rgbMode) {
+ GLuint i;
+
+ RENDERINPUTS_ZERO( tnl->render_inputs_bitset );
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
+
+ if (!fp || (fp->Base.InputsRead & FRAG_BIT_COL0)) {
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR0 );
+ }
+
+ if (NEED_SECONDARY_COLOR(ctx))
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR1 );
+
+ for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
+ if (ctx->Texture._EnabledCoordUnits & (1 << i) ||
+ (fp && fp->Base.InputsRead & FRAG_BIT_TEX(i))) {
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX(i) );
+ }
+ }
+ }
+ else {
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POS );
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_COLOR_INDEX );
+ }
+
+ if (ctx->Fog.Enabled) {
+ /* fixed-function fog */
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+ }
+ else if (fp) {
+ if (fp->FogOption != GL_NONE || (fp->Base.InputsRead & FRAG_BIT_FOGC)) {
+ /* fragment program needs fog coord */
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_FOG );
+ }
+ }
+
+ if (ctx->Polygon.FrontMode != GL_FILL ||
+ ctx->Polygon.BackMode != GL_FILL)
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_EDGEFLAG );
+
+ if (ctx->RenderMode == GL_FEEDBACK)
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_TEX0 );
+
+ if (ctx->Point._Attenuated ||
+ (ctx->VertexProgram._Enabled && ctx->VertexProgram.PointSizeEnabled))
+ RENDERINPUTS_SET( tnl->render_inputs_bitset, _TNL_ATTRIB_POINTSIZE );
+
+ /* check for varying vars which are written by the vertex program */
+ if (vp) {
+ GLuint i;
+ for (i = 0; i < MAX_VARYING; i++) {
+ if (vp->Base.OutputsWritten & (1 << (VERT_RESULT_VAR0 + i))) {
+ RENDERINPUTS_SET(tnl->render_inputs_bitset,
+ _TNL_ATTRIB_GENERIC(i));
+ }
+ }
+ }
+}
+
+
+void
+_tnl_wakeup( GLcontext *ctx )
+{
+ /* Assume we haven't been getting state updates either:
+ */
+ _tnl_InvalidateState( ctx, ~0 );
+
+#if 0
+ if (ctx->Light.ColorMaterialEnabled) {
+ _mesa_update_color_material( ctx,
+ ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
+ }
+#endif
+}
+
+
+
+
+/**
+ * Drivers call this function to tell the TCL module whether or not
+ * it wants Normalized Device Coords (NDC) computed. I.e. whether
+ * we should "Divide-by-W". Software renders will want that.
+ */
+void
+_tnl_need_projected_coords( GLcontext *ctx, GLboolean mode )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->NeedNdcCoords = mode;
+}
+
+void
+_tnl_allow_vertex_fog( GLcontext *ctx, GLboolean value )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->AllowVertexFog = value;
+ tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+ || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
+
+}
+
+void
+_tnl_allow_pixel_fog( GLcontext *ctx, GLboolean value )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl->AllowPixelFog = value;
+ tnl->_DoVertexFog = ((tnl->AllowVertexFog && (ctx->Hint.Fog != GL_NICEST))
+ || !tnl->AllowPixelFog) && !ctx->FragmentProgram._Current;
+}
+