[g3dvl] move z-coord generation for multiple render targets into vertex shader
[mesa.git] / src / gallium / drivers / r300 / r300_state.c
index 5c225e24f93bd8784adee2bf4a1958f887836444..247c22216e18806bc573e9958d50b8eb4c0ab355 100644 (file)
@@ -23,7 +23,7 @@
 
 #include "draw/draw_context.h"
 
-#include "util/u_blitter.h"
+#include "util/u_framebuffer.h"
 #include "util/u_math.h"
 #include "util/u_mm.h"
 #include "util/u_memory.h"
@@ -684,7 +684,7 @@ void r300_mark_fb_state_dirty(struct r300_context *r300,
                               enum r300_fb_state_change change)
 {
     struct pipe_framebuffer_state *state = r300->fb_state.state;
-    boolean has_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
+    boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
 
     /* What is marked as dirty depends on the enum r300_fb_state_change. */
     r300->gpu_flush.dirty = TRUE;
@@ -703,7 +703,7 @@ void r300_mark_fb_state_dirty(struct r300_context *r300,
         r300->fb_state.size += 10;
     else if (state->zsbuf) {
         r300->fb_state.size += 10;
-        if (has_hyperz)
+        if (can_hyperz)
             r300->fb_state.size += r300->screen->caps.hiz_ram ? 8 : 4;
     }
 
@@ -717,7 +717,7 @@ static void
     struct r300_context* r300 = r300_context(pipe);
     struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
     struct pipe_framebuffer_state *old_state = r300->fb_state.state;
-    boolean has_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
+    boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
     unsigned max_width, max_height, i;
     uint32_t zbuffer_bpp = 0;
     int blocksize;
@@ -748,7 +748,7 @@ static void
     /* The tiling flags are dependent on the surface miplevel, unfortunately. */
     r300_fb_set_tiling_flags(r300, state);
 
-    util_assign_framebuffer_state(r300->fb_state.state, state);
+    util_copy_framebuffer_state(r300->fb_state.state, state);
 
     r300_mark_fb_state_dirty(r300, R300_CHANGED_FB_STATE);
 
@@ -764,7 +764,7 @@ static void
             zbuffer_bpp = 24;
             break;
         }
-        if (has_hyperz) {
+        if (can_hyperz) {
             struct r300_surface *zs_surf = r300_surface(state->zsbuf);
             struct r300_texture *tex;
             int compress = r300->screen->caps.is_rv350 ? RV350_Z_COMPRESS_88 : R300_Z_COMPRESS_44;
@@ -922,7 +922,6 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
                                   const struct pipe_rasterizer_state* state)
 {
     struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
-    int i;
     float psiz;
     uint32_t vap_control_status;    /* R300_VAP_CNTL_STATUS: 0x2140 */
     uint32_t point_size;            /* R300_GA_POINT_SIZE: 0x421c */
@@ -935,14 +934,10 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
     uint32_t polygon_mode;          /* R300_GA_POLY_MODE: 0x4288 */
     uint32_t clip_rule;             /* R300_SC_CLIP_RULE: 0x43D0 */
 
-    /* Specifies top of Raster pipe specific enable controls,
-     * i.e. texture coordinates stuffing for points, lines, triangles */
-    uint32_t stuffing_enable;       /* R300_GB_ENABLE: 0x4008 */
-
     /* Point sprites texture coordinates, 0: lower left, 1: upper right */
-    float point_texcoord_left;      /* R300_GA_POINT_S0: 0x4200 */
+    float point_texcoord_left = 0;  /* R300_GA_POINT_S0: 0x4200 */
     float point_texcoord_bottom = 0;/* R300_GA_POINT_T0: 0x4204 */
-    float point_texcoord_right;     /* R300_GA_POINT_S1: 0x4208 */
+    float point_texcoord_right = 1; /* R300_GA_POINT_S1: 0x4208 */
     float point_texcoord_top = 0;   /* R300_GA_POINT_T1: 0x420c */
     CB_LOCALS;
 
@@ -950,10 +945,8 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
     rs->rs = *state;
     rs->rs_draw = *state;
 
-    /* Generate point sprite texture coordinates in GENERIC0
-     * if point_quad_rasterization is TRUE. */
     rs->rs.sprite_coord_enable = state->point_quad_rasterization *
-                                 (state->sprite_coord_enable | 1);
+                                 state->sprite_coord_enable;
 
     /* Override some states for Draw. */
     rs->rs_draw.sprite_coord_enable = 0; /* We can do this in HW. */
@@ -1054,19 +1047,8 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
 
     clip_rule = state->scissor ? 0xAAAA : 0xFFFF;
 
-    /* Point sprites */
-    stuffing_enable = 0;
+    /* Point sprites coord mode */
     if (rs->rs.sprite_coord_enable) {
-        stuffing_enable = R300_GB_POINT_STUFF_ENABLE;
-        for (i = 0; i < 8; i++) {
-            if (rs->rs.sprite_coord_enable & (1 << i))
-                stuffing_enable |=
-                    R300_GB_TEX_ST << (R300_GB_TEX0_SOURCE_SHIFT + (i*2));
-        }
-
-        point_texcoord_left = 0.0f;
-        point_texcoord_right = 1.0f;
-
         switch (state->sprite_coord_mode) {
             case PIPE_SPRITE_COORD_UPPER_LEFT:
                 point_texcoord_top = 0.0f;
@@ -1080,7 +1062,7 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
     }
 
     /* Build the main command buffer. */
-    BEGIN_CB(rs->cb_main, 25);
+    BEGIN_CB(rs->cb_main, RS_STATE_MAIN_SIZE);
     OUT_CB_REG(R300_VAP_CNTL_STATUS, vap_control_status);
     OUT_CB_REG(R300_GA_POINT_SIZE, point_size);
     OUT_CB_REG_SEQ(R300_GA_POINT_MINMAX, 2);
@@ -1094,7 +1076,6 @@ static void* r300_create_rs_state(struct pipe_context* pipe,
     OUT_CB_REG(R300_GA_LINE_STIPPLE_VALUE, line_stipple_value);
     OUT_CB_REG(R300_GA_POLY_MODE, polygon_mode);
     OUT_CB_REG(R300_SC_CLIP_RULE, clip_rule);
-    OUT_CB_REG(R300_GB_ENABLE, stuffing_enable);
     OUT_CB_REG_SEQ(R300_GA_POINT_S0, 4);
     OUT_CB_32F(point_texcoord_left);
     OUT_CB_32F(point_texcoord_bottom);
@@ -1152,7 +1133,7 @@ static void r300_bind_rs_state(struct pipe_context* pipe, void* state)
     }
 
     UPDATE_STATE(state, r300->rs_state);
-    r300->rs_state.size = 25 + (r300->polygon_offset_enabled ? 5 : 0);
+    r300->rs_state.size = RS_STATE_MAIN_SIZE + (r300->polygon_offset_enabled ? 5 : 0);
 
     if (last_sprite_coord_enable != r300->sprite_coord_enable ||
         last_two_sided_color != r300->two_sided_color) {
@@ -1174,7 +1155,6 @@ static void*
     struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
     boolean is_r500 = r300->screen->caps.is_r500;
     int lod_bias;
-    union util_color uc;
 
     sampler->state = *state;
 
@@ -1216,8 +1196,8 @@ static void*
 
     /* Unfortunately, r300-r500 don't support floating-point mipmap lods. */
     /* We must pass these to the merge function to clamp them properly. */
-    sampler->min_lod = MAX2((unsigned)state->min_lod, 0);
-    sampler->max_lod = MAX2((unsigned)ceilf(state->max_lod), 0);
+    sampler->min_lod = (unsigned)MAX2(state->min_lod, 0);
+    sampler->max_lod = (unsigned)MAX2(ceilf(state->max_lod), 0);
 
     lod_bias = CLAMP((int)(state->lod_bias * 32 + 1), -(1 << 9), (1 << 9) - 1);
 
@@ -1231,9 +1211,6 @@ static void*
         sampler->filter1 |= r500_anisotropy(state->max_anisotropy);
     }
 
-    util_pack_color(state->border_color, PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
-    sampler->border_color = uc.ui;
-
     /* R500-specific fixups and optimizations */
     if (r300->screen->caps.is_r500) {
         sampler->filter1 |= R500_BORDER_FIX;
@@ -1471,6 +1448,15 @@ static void r300_set_vertex_buffers(struct pipe_context* pipe,
     struct pipe_vertex_buffer *vbo;
     unsigned i, max_index = (1 << 24) - 1;
     boolean any_user_buffer = FALSE;
+    struct pipe_vertex_buffer dummy_vb = {0};
+
+    /* There must be at least one vertex buffer set, otherwise it locks up. */
+    if (!count) {
+        dummy_vb.buffer = r300->dummy_vb;
+        dummy_vb.max_index = r300->dummy_vb->width0 / 4;
+        buffers = &dummy_vb;
+        count = 1;
+    }
 
     if (count == r300->vertex_buffer_count &&
         memcmp(r300->vertex_buffer, buffers,
@@ -1624,6 +1610,14 @@ static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
     struct r300_vertex_element_state *velems;
     unsigned i;
     enum pipe_format *format;
+    struct pipe_vertex_element dummy_attrib = {0};
+
+    /* R300 Programmable Stream Control (PSC) doesn't support 0 vertex elements. */
+    if (!count) {
+        dummy_attrib.src_format = PIPE_FORMAT_R8G8B8A8_UNORM;
+        attribs = &dummy_attrib;
+        count = 1;
+    }
 
     assert(count <= PIPE_MAX_ATTRIBS);
     velems = CALLOC_STRUCT(r300_vertex_element_state);
@@ -1690,7 +1684,8 @@ static void* r300_create_vertex_elements_state(struct pipe_context* pipe,
              * swizzles are already set up.
              * Also compute the vertex size. */
             for (i = 0; i < count; i++) {
-                /* This is OK because we check for aligned strides too. */
+                /* This is OK because we check for aligned strides too
+                 * elsewhere. */
                 velems->hw_format_size[i] =
                     align(util_format_get_blocksize(velems->hw_format[i]), 4);
                 velems->vertex_size_dwords += velems->hw_format_size[i] / 4;
@@ -1812,7 +1807,7 @@ static void r300_set_constant_buffer(struct pipe_context *pipe,
 {
     struct r300_context* r300 = r300_context(pipe);
     struct r300_constant_buffer *cbuf;
-    uint32_t *mapped = r300_buffer(buf)->user_buffer;
+    uint32_t *mapped;
 
     switch (shader) {
         case PIPE_SHADER_VERTEX: