/************************************************************************** * * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. * 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, 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 TUNGSTEN GRAPHICS 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: * Keith Whitwell */ #include "macros.h" #include "i915_state_inlines.h" #include "i915_context.h" #include "i915_state.h" #include "i915_reg.h" /* All state expressable with the LOAD_STATE_IMMEDIATE_1 packet. * Would like to opportunistically recombine all these fragments into * a single packet containing only what has changed, but for now emit * as multiple packets. */ struct i915_tracked_state { unsigned dirty; void (*update)( struct i915_context * ); }; /*********************************************************************** * S4: Vertex format, rasterization state */ static void upload_S2S4(struct i915_context *i915) { GLuint LIS2, LIS4; /* I915_NEW_VERTEX_FORMAT */ LIS2 = 0xffffffff; LIS4 = (S4_VFMT_XYZ | S4_VFMT_COLOR); /* I915_NEW_SETUP */ switch (i915->setup.cull_mode) { case PIPE_WINDING_NONE: LIS4 |= S4_CULLMODE_NONE; break; case PIPE_WINDING_CW: LIS4 |= S4_CULLMODE_CW; break; case PIPE_WINDING_CCW: LIS4 |= S4_CULLMODE_CCW; break; case PIPE_WINDING_BOTH: LIS4 |= S4_CULLMODE_BOTH; break; } /* I915_NEW_SETUP */ { int line_width = CLAMP((int)(i915->setup.line_width * 2), 1, 0xf); LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; if (i915->setup.line_smooth) LIS4 |= S4_LINE_ANTIALIAS_ENABLE; } /* I915_NEW_SETUP */ { GLint point_size = CLAMP((int) i915->setup.point_size, 1, 0xff); LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; } /* I915_NEW_SETUP */ if (i915->setup.flatshade) { LIS4 |= (S4_FLATSHADE_ALPHA | S4_FLATSHADE_COLOR | S4_FLATSHADE_SPECULAR); } if (LIS2 != i915->current.immediate[I915_IMMEDIATE_S2] || LIS4 != i915->current.immediate[I915_IMMEDIATE_S4]) { i915->current.immediate[I915_IMMEDIATE_S2] = LIS2; i915->current.immediate[I915_IMMEDIATE_S4] = LIS4; i915->hardware_dirty |= I915_HW_IMMEDIATE; } } const struct i915_tracked_state i915_upload_S2S4 = { .dirty = I915_NEW_SETUP | I915_NEW_VERTEX_FORMAT, .update = upload_S2S4 }; /*********************************************************************** * */ static void upload_S5( struct i915_context *i915 ) { GLuint LIS5 = 0; /* I915_NEW_STENCIL */ if (i915->stencil.front_enabled) { GLint test = i915_translate_compare_func(i915->stencil.front_func); GLint fop = i915_translate_stencil_op(i915->stencil.front_fail_op); GLint dfop = i915_translate_stencil_op(i915->stencil.front_zfail_op); GLint dpop = i915_translate_stencil_op(i915->stencil.front_zpass_op); GLint ref = i915->stencil.ref_value[0] & 0xff; LIS5 |= (S5_STENCIL_TEST_ENABLE | S5_STENCIL_WRITE_ENABLE | (ref << S5_STENCIL_REF_SHIFT) | (test << S5_STENCIL_TEST_FUNC_SHIFT) | (fop << S5_STENCIL_FAIL_SHIFT) | (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); } /* I915_NEW_BLEND */ if (i915->blend.logicop_enable) LIS5 |= S5_LOGICOP_ENABLE; if (i915->blend.dither) LIS5 |= S5_COLOR_DITHER_ENABLE; if ((i915->blend.colormask & PIPE_MASK_R) == 0) LIS5 |= S5_WRITEDISABLE_RED; if ((i915->blend.colormask & PIPE_MASK_G) == 0) LIS5 |= S5_WRITEDISABLE_GREEN; if ((i915->blend.colormask & PIPE_MASK_B) == 0) LIS5 |= S5_WRITEDISABLE_BLUE; if ((i915->blend.colormask & PIPE_MASK_A) == 0) LIS5 |= S5_WRITEDISABLE_ALPHA; #if 0 /* I915_NEW_SETUP */ if (i915->state.Polygon->OffsetFill) { LIS5 |= S5_GLOBAL_DEPTH_OFFSET_ENABLE; } #endif if (LIS5 != i915->current.immediate[I915_IMMEDIATE_S5]) { i915->current.immediate[I915_IMMEDIATE_S5] = LIS5; i915->hardware_dirty |= I915_HW_IMMEDIATE; } } const struct i915_tracked_state i915_upload_S5 = { .dirty = (I915_NEW_STENCIL | I915_NEW_BLEND | I915_NEW_SETUP), .update = upload_S5 }; /*********************************************************************** */ static void upload_S6( struct i915_context *i915 ) { GLuint LIS6 = (S6_COLOR_WRITE_ENABLE | (2 << S6_TRISTRIP_PV_SHIFT)); /* I915_NEW_ALPHA_TEST */ if (i915->alpha_test.enabled) { int test = i915_translate_compare_func(i915->alpha_test.func); GLubyte refByte; CLAMPED_FLOAT_TO_UBYTE(refByte, i915->alpha_test.ref); LIS6 |= (S6_ALPHA_TEST_ENABLE | (test << S6_ALPHA_TEST_FUNC_SHIFT) | (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); } /* I915_NEW_BLEND */ if (i915->blend.blend_enable) { GLuint funcRGB = i915->blend.rgb_func; GLuint srcRGB = i915->blend.rgb_src_factor; GLuint dstRGB = i915->blend.rgb_dst_factor; LIS6 |= (S6_CBUF_BLEND_ENABLE | SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); } /* I915_NEW_DEPTH */ if (i915->depth_test.enabled) { GLint func = i915_translate_compare_func(i915->depth_test.func); LIS6 |= (S6_DEPTH_TEST_ENABLE | (func << S6_DEPTH_TEST_FUNC_SHIFT)); if (i915->depth_test.writemask) LIS6 |= S6_DEPTH_WRITE_ENABLE; } if (LIS6 != i915->current.immediate[I915_IMMEDIATE_S6]) { i915->current.immediate[I915_IMMEDIATE_S6] = LIS6; i915->hardware_dirty |= I915_HW_IMMEDIATE; } } const struct i915_tracked_state i915_upload_S6 = { .dirty = I915_NEW_ALPHA_TEST | I915_NEW_BLEND | I915_NEW_DEPTH_TEST, .update = upload_S6 }; /*********************************************************************** */ static void upload_S7( struct i915_context *i915 ) { GLfloat LIS7; /* I915_NEW_SETUP */ LIS7 = i915->setup.offset_units; /* probably incorrect */ if (LIS7 != i915->current.immediate[I915_IMMEDIATE_S7]) { i915->current.immediate[I915_IMMEDIATE_S7] = LIS7; i915->hardware_dirty |= I915_HW_IMMEDIATE; } } const struct i915_tracked_state i915_upload_S7 = { .dirty = I915_NEW_SETUP, .update = upload_S7 }; static const struct i915_tracked_state *atoms[] = { &i915_upload_S2S4, &i915_upload_S5, &i915_upload_S6, &i915_upload_S7 }; /* */ void i915_update_immediate( struct i915_context *i915 ) { int i; for (i = 0; i < Elements(atoms); i++) if (i915->dirty & atoms[i]->dirty) atoms[i]->update( i915 ); }