From a08a830fd3c22bdbad1ee840e4e56302152375f1 Mon Sep 17 00:00:00 2001 From: Corbin Simpson Date: Sat, 17 Jan 2009 01:41:52 -0800 Subject: [PATCH] r300: Add more state. pipe_rasterizer_state is big, and I'm still processing it. Todo: - LOL EVERYTHING - Moar cough syrup. - Even moar cough syrup. --- src/gallium/drivers/r300/r300_context.c | 8 +- src/gallium/drivers/r300/r300_context.h | 21 ++++- src/gallium/drivers/r300/r300_state.c | 136 +++++++++++++++++++++++++++++++- 3 files changed, 155 insertions(+), 10 deletions(-) diff --git a/src/gallium/drivers/r300/r300_context.c b/src/gallium/drivers/r300/r300_context.c index 67cc1e4..6dfc9ed 100644 --- a/src/gallium/drivers/r300/r300_context.c +++ b/src/gallium/drivers/r300/r300_context.c @@ -27,7 +27,8 @@ static void r300_destroy_context(struct pipe_context* context) { draw_destroy(r300->draw); - FREE(context); + FREE(r300->scissor_state); + FREE(r300); } struct pipe_context* r300_create_context(struct pipe_screen* screen, @@ -47,10 +48,7 @@ struct pipe_context* r300_create_context(struct pipe_screen* screen, r300->draw = draw_create(); - /* XXX this is almost certainly wrong - * put this all in winsys, where we can get an FD - struct radeon_cs_manager* csm = radeon_cs_manager_gem_ctor(fd); - r300->cs = cs_gem_create(csm, 64 * 1024 / 4); */ + r300->scissor_state = CALLOC_STRUCT(r300_scissor_state); r300_init_surface_functions(r300); diff --git a/src/gallium/drivers/r300/r300_context.h b/src/gallium/drivers/r300/r300_context.h index 0551275..ea057bc 100644 --- a/src/gallium/drivers/r300/r300_context.h +++ b/src/gallium/drivers/r300/r300_context.h @@ -46,9 +46,24 @@ struct r300_dsa_state { uint32_t stencil_ref_bf; /* R300_ZB_STENCILREFMASK_BF: 0x4fd4 */ }; +struct r300_rs_state { + uint32_t polygon_offset_enable; /* R300_SU_POLY_OFFSET_ENABLE: 0x42b4 */ + uint32_t cull_mode; /* R300_SU_CULL_MODE: 0x42b8 */ + uint32_t depth_scale_front; /* R300_SU_POLY_OFFSET_FRONT_SCALE: 0x42a4 */ + uint32_t depth_offset_front; /* R300_SU_POLY_OFFSET_FRONT_OFFSET: 0x42a8 */ + uint32_t depth_scale_back; /* R300_SU_POLY_OFFSET_BACK_SCALE: 0x42ac */ + uint32_t depth_offset_back; /* R300_SU_POLY_OFFSET_BACK_OFFSET: 0x42b0 */ +}; + +struct r300_scissor_state { + uint32_t scissor_top_left; /* R300_SC_SCISSORS_TL: 0x43e0 */ + uint32_t scissor_bottom_right; /* R300_SC_SCISSORS_BR: 0x43e4 */ +}; + #define R300_NEW_BLEND 0x1 #define R300_NEW_DSA 0x2 -#define R300_NEW_SCISSOR 0x4 +#define R300_NEW_RS 0x4 +#define R300_NEW_SCISSOR 0x8 struct r300_context { /* Parent class */ @@ -64,8 +79,10 @@ struct r300_context { struct r300_blend_state* blend_state; /* Depth, stencil, and alpha state. */ struct r300_dsa_state* dsa_state; + /* Rasterizer state. */ + struct r300_rs_state* rs_state; /* Scissor state. */ - struct pipe_scissor_state* scissor_state; + struct r300_scissor_state* scissor_state; /* Bitmask of dirty state objects. */ uint32_t dirty_state; diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c index 122e06c..7668b14 100644 --- a/src/gallium/drivers/r300/r300_state.c +++ b/src/gallium/drivers/r300/r300_state.c @@ -23,6 +23,23 @@ #include "r300_context.h" #include "r300_state.h" +/* r300_state: Functions used to intialize state context by translating + * Gallium state objects into semi-native r300 state objects. + * + * XXX break this file up into pieces if it gets too big! */ + +/* Pack a float into a dword. */ +static uint32_t pack_float_32(float f) +{ + union { + float f; + uint32_t u; + } u; + + u.f = f; + return u.u; +} + static uint32_t translate_blend_function(int blend_func) { switch (blend_func) { case PIPE_BLEND_ADD: @@ -229,7 +246,7 @@ static uint32_t translate_alpha_function(int alpha_func) { * On the Radeon, depth and stencil buffer setup are intertwined, which is * the reason for some of the strange-looking assignments across registers. */ static void* r300_create_dsa_state(struct pipe_context* pipe, - struct pipe_depth_stencil_alpha_state* state) + struct pipe_depth_stencil_alpha_state* state) { struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state); @@ -309,6 +326,102 @@ static void r300_delete_dsa_state(struct pipe_context* pipe, { FREE(state); } +#if 0 +struct pipe_rasterizer_state +{ + unsigned flatshade:1; + unsigned light_twoside:1; + unsigned fill_cw:2; /**< PIPE_POLYGON_MODE_x */ + unsigned fill_ccw:2; /**< PIPE_POLYGON_MODE_x */ + unsigned scissor:1; + unsigned poly_smooth:1; + unsigned poly_stipple_enable:1; + unsigned point_smooth:1; + unsigned point_sprite:1; + unsigned point_size_per_vertex:1; /**< size computed in vertex shader */ + unsigned multisample:1; /* XXX maybe more ms state in future */ + unsigned line_smooth:1; + unsigned line_stipple_enable:1; + unsigned line_stipple_factor:8; /**< [1..256] actually */ + unsigned line_stipple_pattern:16; + unsigned line_last_pixel:1; + unsigned bypass_clipping:1; + unsigned bypass_vs:1; /**< Skip the vertex shader. Note that the shader is + still needed though, to indicate inputs/outputs */ + unsigned origin_lower_left:1; /**< Is (0,0) the lower-left corner? */ + unsigned flatshade_first:1; /**< take color attribute from the first vertex of a primitive */ + unsigned gl_rasterization_rules:1; /**< enable tweaks for GL rasterization? */ + + float line_width; + float point_size; /**< used when no per-vertex size */ + float point_size_min; /* XXX - temporary, will go away */ + float point_size_max; /* XXX - temporary, will go away */ + ubyte sprite_coord_mode[PIPE_MAX_SHADER_OUTPUTS]; /**< PIPE_SPRITE_COORD_ */ +}; +#endif +/* Create a new rasterizer state based on the CSO rasterizer state. + * + * This is a very large chunk of state, and covers most of the graphics + * backend (GB), geometry assembly (GA), and setup unit (SU) blocks. + * + * In a not entirely unironic sidenote, this state has nearly nothing to do + * with the actual block on the Radeon called the rasterizer (RS). */ +static void* r300_create_rs_state(struct pipe_context* pipe, + struct pipe_rasterizer_state* state) +{ + struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state); + + /* Radeons don't think in "CW/CCW", they think in "front/back". */ + if (state->front_winding == PIPE_WINDING_CW) { + rs->cull_mode = R300_FRONT_FACE_CW; + + if (state->offset_cw) { + rs->polygon_offset_enable |= R300_FRONT_ENABLE; + } + if (state->offset_ccw) { + rs->polygon_offset_enable |= R300_BACK_ENABLE; + } + } else { + rs->cull_mode = R300_FRONT_FACE_CCW; + + if (state->offset_ccw) { + rs->polygon_offset_enable |= R300_FRONT_ENABLE; + } + if (state->offset_cw) { + rs->polygon_offset_enable |= R300_BACK_ENABLE; + } + } + if (state->front_winding & state->cull_mode) { + rs->cull_mode |= R300_CULL_FRONT; + } + if (~(state->front_winding) & state->cull_mode) { + rs->cull_mode |= R300_CULL_BACK; + } + + if (rs->polygon_offset_enable) { + rs->depth_offset_front = rs->depth_offset_back = + pack_float_32(state->offset_units); + rs->depth_scale_front = rs->depth_scale_back = + pack_float_32(state->offset_scale); + } + + return (void*)rs; +} + +/* Bind rasterizer state. */ +static void r300_bind_rs_state(struct pipe_context* pipe, void* state) +{ + struct r300_context* r300 = r300_context(pipe); + + r300->rs_state = (struct r300_rs_state*)state; + r300->dirty_state |= R300_NEW_RS; +} + +/* Free rasterizer state. */ +static void r300_delete_rs_state(struct pipe_context* pipe, void* state) +{ + FREE(state); +} static void r300_set_scissor_state(struct pipe_context* pipe, struct pipe_scissor_state* state) @@ -316,8 +429,21 @@ static void r300_set_scissor_state(struct pipe_context* pipe, struct r300_context* r300 = r300_context(pipe); draw_flush(r300->draw); - /* XXX figure out how this memory doesn't get lost in space - memcpy(r300->scissor, scissor, sizeof(struct pipe_scissor_state)); */ + uint32_t left, top, right, bottom; + + /* So, a bit of info. The scissors are offset by R300_SCISSORS_OFFSET in + * both directions for all values, and can only be 13 bits wide. Why? + * We may never know. */ + left = (state->minx + R300_SCISSORS_OFFSET) & 0x1fff; + top = (state->miny + R300_SCISSORS_OFFSET) & 0x1fff; + right = (state->maxx + R300_SCISSORS_OFFSET) & 0x1fff; + bottom = (state->maxy + R300_SCISSORS_OFFSET) & 0x1fff; + + r300->scissor_state->scissor_top_left = (left << R300_SCISSORS_X_SHIFT) | + (top << R300_SCISSORS_Y_SHIFT); + r300->scissor_state->scissor_bottom_right = (right << R300_SCISSORS_X_SHIFT) | + (bottom << R300_SCISSORS_Y_SHIFT); + r300->dirty_state |= R300_NEW_SCISSOR; } @@ -348,6 +474,10 @@ void r300_init_state_functions(struct r300_context* r300) { r300->context.bind_blend_state = r300_bind_blend_state; r300->context.delete_blend_state = r300_delete_blend_state; + r300->context.create_rasterizer_state = r300_create_rs_state; + r300->context.bind_rasterizer_state = r300_bind_rs_state; + r300->context.delete_rasterizer_state = r300_delete_rs_state; + r300->context.create_depth_stencil_alpha_state = r300_create_dsa_state; r300->context.bind_depth_stencil_alpha_state = r300_bind_dsa_state; r300->context.delete_depth_stencil_alpha_state = r300_delete_dsa_state; -- 2.7.4