Merge branch 'master' into gallium-texture-transfer

Conflicts:

	src/mesa/state_tracker/st_cb_accum.c
	src/mesa/state_tracker/st_cb_drawpixels.c

1 files changed, 852 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
new file mode 100644
index 0000000000..eae1a5698d
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -0,0 +1,852 @@
+/*
+ * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
+ *
+ * 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
+ * THE AUTHOR(S) AND/OR THEIR 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. */
+
+#include "util/u_math.h"
+#include "util/u_pack_color.h"
+
+#include "pipe/p_debug.h"
+#include "pipe/internal/p_winsys_screen.h"
+
+#include "r300_context.h"
+#include "r300_reg.h"
+#include "r300_state_shader.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:
+            return R300_COMB_FCN_ADD_CLAMP;
+        case PIPE_BLEND_SUBTRACT:
+            return R300_COMB_FCN_SUB_CLAMP;
+        case PIPE_BLEND_REVERSE_SUBTRACT:
+            return R300_COMB_FCN_RSUB_CLAMP;
+        case PIPE_BLEND_MIN:
+            return R300_COMB_FCN_MIN;
+        case PIPE_BLEND_MAX:
+            return R300_COMB_FCN_MAX;
+        default:
+            debug_printf("r300: Unknown blend function %d\n", blend_func);
+            break;
+    }
+    return 0;
+}
+
+/* XXX we can also offer the D3D versions of some of these... */
+static uint32_t translate_blend_factor(int blend_fact) {
+    switch (blend_fact) {
+        case PIPE_BLENDFACTOR_ONE:
+            return R300_BLEND_GL_ONE;
+        case PIPE_BLENDFACTOR_SRC_COLOR:
+            return R300_BLEND_GL_SRC_COLOR;
+        case PIPE_BLENDFACTOR_SRC_ALPHA:
+            return R300_BLEND_GL_SRC_ALPHA;
+        case PIPE_BLENDFACTOR_DST_ALPHA:
+            return R300_BLEND_GL_DST_ALPHA;
+        case PIPE_BLENDFACTOR_DST_COLOR:
+            return R300_BLEND_GL_DST_COLOR;
+        case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE:
+            return R300_BLEND_GL_SRC_ALPHA_SATURATE;
+        case PIPE_BLENDFACTOR_CONST_COLOR:
+            return R300_BLEND_GL_CONST_COLOR;
+        case PIPE_BLENDFACTOR_CONST_ALPHA:
+            return R300_BLEND_GL_CONST_ALPHA;
+        /* XXX WTF are these?
+        case PIPE_BLENDFACTOR_SRC1_COLOR:
+        case PIPE_BLENDFACTOR_SRC1_ALPHA: */
+        case PIPE_BLENDFACTOR_ZERO:
+            return R300_BLEND_GL_ZERO;
+        case PIPE_BLENDFACTOR_INV_SRC_COLOR:
+            return R300_BLEND_GL_ONE_MINUS_SRC_COLOR;
+        case PIPE_BLENDFACTOR_INV_SRC_ALPHA:
+            return R300_BLEND_GL_ONE_MINUS_SRC_ALPHA;
+        case PIPE_BLENDFACTOR_INV_DST_ALPHA:
+            return R300_BLEND_GL_ONE_MINUS_DST_ALPHA;
+        case PIPE_BLENDFACTOR_INV_DST_COLOR:
+            return R300_BLEND_GL_ONE_MINUS_DST_COLOR;
+        case PIPE_BLENDFACTOR_INV_CONST_COLOR:
+            return R300_BLEND_GL_ONE_MINUS_CONST_COLOR;
+        case PIPE_BLENDFACTOR_INV_CONST_ALPHA:
+            return R300_BLEND_GL_ONE_MINUS_CONST_ALPHA;
+        /* XXX see above
+        case PIPE_BLENDFACTOR_INV_SRC1_COLOR:
+        case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: */
+        default:
+            debug_printf("r300: Unknown blend factor %d\n", blend_fact);
+            break;
+    }
+    return 0;
+}
+
+/* Create a new blend state based on the CSO blend state.
+ *
+ * This encompasses alpha blending, logic/raster ops, and blend dithering. */
+static void* r300_create_blend_state(struct pipe_context* pipe,
+                                     const struct pipe_blend_state* state)
+{
+    struct r300_blend_state* blend = CALLOC_STRUCT(r300_blend_state);
+
+    if (state->blend_enable) {
+        /* XXX for now, always do separate alpha...
+         * is it faster to do it with one reg? */
+        blend->blend_control = R300_ALPHA_BLEND_ENABLE |
+                R300_SEPARATE_ALPHA_ENABLE |
+                R300_READ_ENABLE |
+                translate_blend_function(state->rgb_func) |
+                (translate_blend_factor(state->rgb_src_factor) <<
+                    R300_SRC_BLEND_SHIFT) |
+                (translate_blend_factor(state->rgb_dst_factor) <<
+                    R300_DST_BLEND_SHIFT);
+        blend->alpha_blend_control =
+                translate_blend_function(state->alpha_func) |
+                (translate_blend_factor(state->alpha_src_factor) <<
+                    R300_SRC_BLEND_SHIFT) |
+                (translate_blend_factor(state->alpha_dst_factor) <<
+                    R300_DST_BLEND_SHIFT);
+    }
+
+    /* PIPE_LOGICOP_* don't need to be translated, fortunately. */
+    /* XXX are logicops still allowed if blending's disabled?
+     * Does Gallium take care of it for us? */
+    if (state->logicop_enable) {
+        blend->rop = R300_RB3D_ROPCNTL_ROP_ENABLE |
+                (state->logicop_func) << R300_RB3D_ROPCNTL_ROP_SHIFT;
+    }
+
+    if (state->dither) {
+        blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
+                R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
+    }
+
+    return (void*)blend;
+}
+
+/* Bind blend state. */
+static void r300_bind_blend_state(struct pipe_context* pipe,
+                                  void* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+
+    r300->blend_state = (struct r300_blend_state*)state;
+    r300->dirty_state |= R300_NEW_BLEND;
+}
+
+/* Free blend state. */
+static void r300_delete_blend_state(struct pipe_context* pipe,
+                                    void* state)
+{
+    FREE(state);
+}
+
+/* Set blend color.
+ * Setup both R300 and R500 registers, figure out later which one to write. */
+static void r300_set_blend_color(struct pipe_context* pipe,
+                                 const struct pipe_blend_color* color)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    uint32_t r, g, b, a;
+    ubyte ur, ug, ub, ua;
+
+    r = util_iround(color->color[0] * 1023.0f);
+    g = util_iround(color->color[1] * 1023.0f);
+    b = util_iround(color->color[2] * 1023.0f);
+    a = util_iround(color->color[3] * 1023.0f);
+
+    ur = float_to_ubyte(color->color[0]);
+    ug = float_to_ubyte(color->color[1]);
+    ub = float_to_ubyte(color->color[2]);
+    ua = float_to_ubyte(color->color[3]);
+
+    r300->blend_color_state->blend_color = (a << 24) | (r << 16) | (g << 8) | b;
+
+    r300->blend_color_state->blend_color_red_alpha = ur | (ua << 16);
+    r300->blend_color_state->blend_color_green_blue = ub | (ug << 16);
+
+    r300->dirty_state |= R300_NEW_BLEND_COLOR;
+}
+
+static void r300_set_clip_state(struct pipe_context* pipe,
+                                const struct pipe_clip_state* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    /* XXX Draw */
+    draw_flush(r300->draw);
+    draw_set_clip_state(r300->draw, state);
+}
+
+static void
+    r300_set_constant_buffer(struct pipe_context* pipe,
+                             uint shader, uint index,
+                             const struct pipe_constant_buffer* buffer)
+{
+    struct r300_context* r300 = r300_context(pipe);
+
+    /* This entire chunk of code seems ever-so-slightly baked.
+     * It's as if I've got pipe_buffer* matryoshkas... */
+    if (buffer && buffer->buffer && buffer->buffer->size) {
+        void* map = pipe->winsys->buffer_map(pipe->winsys, buffer->buffer,
+                                             PIPE_BUFFER_USAGE_CPU_READ);
+        memcpy(r300->shader_constants[shader].constants,
+            map, buffer->buffer->size);
+        pipe->winsys->buffer_unmap(pipe->winsys, buffer->buffer);
+
+        r300->shader_constants[shader].user_count =
+            buffer->buffer->size / (sizeof(float) * 4);
+    } else {
+        r300->shader_constants[shader].user_count = 0;
+    }
+
+    r300->dirty_state |= R300_NEW_CONSTANTS;
+}
+
+static uint32_t translate_depth_stencil_function(int zs_func) {
+    switch (zs_func) {
+        case PIPE_FUNC_NEVER:
+            return R300_ZS_NEVER;
+        case PIPE_FUNC_LESS:
+            return R300_ZS_LESS;
+        case PIPE_FUNC_EQUAL:
+            return R300_ZS_EQUAL;
+        case PIPE_FUNC_LEQUAL:
+            return R300_ZS_LEQUAL;
+        case PIPE_FUNC_GREATER:
+            return R300_ZS_GREATER;
+        case PIPE_FUNC_NOTEQUAL:
+            return R300_ZS_NOTEQUAL;
+        case PIPE_FUNC_GEQUAL:
+            return R300_ZS_GEQUAL;
+        case PIPE_FUNC_ALWAYS:
+            return R300_ZS_ALWAYS;
+        default:
+            debug_printf("r300: Unknown depth/stencil function %d\n",
+                zs_func);
+            break;
+    }
+    return 0;
+}
+
+static uint32_t translate_stencil_op(int s_op) {
+    switch (s_op) {
+        case PIPE_STENCIL_OP_KEEP:
+            return R300_ZS_KEEP;
+        case PIPE_STENCIL_OP_ZERO:
+            return R300_ZS_ZERO;
+        case PIPE_STENCIL_OP_REPLACE:
+            return R300_ZS_REPLACE;
+        case PIPE_STENCIL_OP_INCR:
+            return R300_ZS_INCR;
+        case PIPE_STENCIL_OP_DECR:
+            return R300_ZS_DECR;
+        case PIPE_STENCIL_OP_INCR_WRAP:
+            return R300_ZS_INCR_WRAP;
+        case PIPE_STENCIL_OP_DECR_WRAP:
+            return R300_ZS_DECR_WRAP;
+        case PIPE_STENCIL_OP_INVERT:
+            return R300_ZS_INVERT;
+        default:
+            debug_printf("r300: Unknown stencil op %d", s_op);
+            break;
+    }
+    return 0;
+}
+
+static uint32_t translate_alpha_function(int alpha_func) {
+    switch (alpha_func) {
+        case PIPE_FUNC_NEVER:
+            return R300_FG_ALPHA_FUNC_NEVER;
+        case PIPE_FUNC_LESS:
+            return R300_FG_ALPHA_FUNC_LESS;
+        case PIPE_FUNC_EQUAL:
+            return R300_FG_ALPHA_FUNC_EQUAL;
+        case PIPE_FUNC_LEQUAL:
+            return R300_FG_ALPHA_FUNC_LE;
+        case PIPE_FUNC_GREATER:
+            return R300_FG_ALPHA_FUNC_GREATER;
+        case PIPE_FUNC_NOTEQUAL:
+            return R300_FG_ALPHA_FUNC_NOTEQUAL;
+        case PIPE_FUNC_GEQUAL:
+            return R300_FG_ALPHA_FUNC_GE;
+        case PIPE_FUNC_ALWAYS:
+            return R300_FG_ALPHA_FUNC_ALWAYS;
+        default:
+            debug_printf("r300: Unknown alpha function %d", alpha_func);
+            break;
+    }
+    return 0;
+}
+
+/* Create a new depth, stencil, and alpha state based on the CSO dsa state.
+ *
+ * This contains the depth buffer, stencil buffer, alpha test, and such.
+ * 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,
+                              const struct pipe_depth_stencil_alpha_state* state)
+{
+    struct r300_dsa_state* dsa = CALLOC_STRUCT(r300_dsa_state);
+
+    /* Depth test setup. */
+    if (state->depth.enabled) {
+        dsa->z_buffer_control |= R300_Z_ENABLE;
+
+        if (state->depth.writemask) {
+            dsa->z_buffer_control |= R300_Z_WRITE_ENABLE;
+        }
+
+        dsa->z_stencil_control |=
+            (translate_depth_stencil_function(state->depth.func) <<
+                R300_Z_FUNC_SHIFT);
+    }
+
+    /* Stencil buffer setup. */
+    if (state->stencil[0].enabled) {
+        dsa->z_buffer_control |= R300_STENCIL_ENABLE;
+        dsa->z_stencil_control |=
+                (translate_depth_stencil_function(state->stencil[0].func) <<
+                    R300_S_FRONT_FUNC_SHIFT) |
+                (translate_stencil_op(state->stencil[0].fail_op) <<
+                    R300_S_FRONT_SFAIL_OP_SHIFT) |
+                (translate_stencil_op(state->stencil[0].zpass_op) <<
+                    R300_S_FRONT_ZPASS_OP_SHIFT) |
+                (translate_stencil_op(state->stencil[0].zfail_op) <<
+                    R300_S_FRONT_ZFAIL_OP_SHIFT);
+
+        dsa->stencil_ref_mask = (state->stencil[0].ref_value) |
+                (state->stencil[0].valuemask << R300_STENCILMASK_SHIFT) |
+                (state->stencil[0].writemask << R300_STENCILWRITEMASK_SHIFT);
+
+        if (state->stencil[1].enabled) {
+            dsa->z_buffer_control |= R300_STENCIL_FRONT_BACK;
+            dsa->z_stencil_control |=
+                (translate_depth_stencil_function(state->stencil[1].func) <<
+                    R300_S_BACK_FUNC_SHIFT) |
+                (translate_stencil_op(state->stencil[1].fail_op) <<
+                    R300_S_BACK_SFAIL_OP_SHIFT) |
+                (translate_stencil_op(state->stencil[1].zpass_op) <<
+                    R300_S_BACK_ZPASS_OP_SHIFT) |
+                (translate_stencil_op(state->stencil[1].zfail_op) <<
+                    R300_S_BACK_ZFAIL_OP_SHIFT);
+
+            dsa->stencil_ref_bf = (state->stencil[1].ref_value) |
+                (state->stencil[1].valuemask << R300_STENCILMASK_SHIFT) |
+                (state->stencil[1].writemask << R300_STENCILWRITEMASK_SHIFT);
+        }
+    }
+
+    /* Alpha test setup. */
+    if (state->alpha.enabled) {
+        dsa->alpha_function = translate_alpha_function(state->alpha.func) |
+            R300_FG_ALPHA_FUNC_ENABLE;
+        dsa->alpha_reference = CLAMP(state->alpha.ref_value * 1023.0f,
+                                     0, 1023);
+    } else {
+        dsa->z_buffer_top = R300_ZTOP_ENABLE;
+    }
+
+    return (void*)dsa;
+}
+
+/* Bind DSA state. */
+static void r300_bind_dsa_state(struct pipe_context* pipe,
+                                void* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+
+    r300->dsa_state = (struct r300_dsa_state*)state;
+    r300->dirty_state |= R300_NEW_DSA;
+}
+
+/* Free DSA state. */
+static void r300_delete_dsa_state(struct pipe_context* pipe,
+                                  void* state)
+{
+    FREE(state);
+}
+
+static void r300_set_edgeflags(struct pipe_context* pipe,
+                               const unsigned* bitfield)
+{
+    /* XXX you know it's bad when i915 has this blank too */
+}
+
+static void
+    r300_set_framebuffer_state(struct pipe_context* pipe,
+                               const struct pipe_framebuffer_state* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+
+    draw_flush(r300->draw);
+
+    r300->framebuffer_state = *state;
+
+    r300->dirty_state |= R300_NEW_FRAMEBUFFERS;
+}
+
+/* Create fragment shader state. */
+static void* r300_create_fs_state(struct pipe_context* pipe,
+                                  const struct pipe_shader_state* shader)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    struct r3xx_fragment_shader* fs = NULL;
+
+    if (r300_screen(r300->context.screen)->caps->is_r500) {
+        fs =
+            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r500_fragment_shader);
+    } else {
+        fs =
+            (struct r3xx_fragment_shader*)CALLOC_STRUCT(r300_fragment_shader);
+    }
+
+    /* Copy state directly into shader. */
+    fs->state = *shader;
+
+    return (void*)fs;
+}
+
+/* Bind fragment shader state. */
+static void r300_bind_fs_state(struct pipe_context* pipe, void* shader)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    struct r3xx_fragment_shader* fs = (struct r3xx_fragment_shader*)shader;
+
+    if (fs == NULL) {
+        r300->fs = NULL;
+        return;
+    } else if (!fs->translated) {
+        if (r300_screen(r300->context.screen)->caps->is_r500) {
+            r500_translate_fragment_shader(r300, (struct r500_fragment_shader*)fs);
+        } else {
+            r300_translate_fragment_shader(r300, (struct r300_fragment_shader*)fs);
+        }
+    }
+
+    fs->translated = true;
+    r300->fs = fs;
+
+    r300->dirty_state |= R300_NEW_FRAGMENT_SHADER;
+}
+
+/* Delete fragment shader state. */
+static void r300_delete_fs_state(struct pipe_context* pipe, void* shader)
+{
+    FREE(shader);
+}
+
+static void r300_set_polygon_stipple(struct pipe_context* pipe,
+                                     const struct pipe_poly_stipple* state)
+{
+    /* XXX */
+}
+
+static INLINE int pack_float_16_6x(float f) {
+    return ((int)(f * 6.0) & 0xffff);
+}
+
+/* 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,
+                                  const struct pipe_rasterizer_state* state)
+{
+    struct r300_rs_state* rs = CALLOC_STRUCT(r300_rs_state);
+
+    /* XXX this is part of HW TCL */
+    /* XXX endian control */
+    rs->vap_control_status = R300_VAP_TCL_BYPASS;
+
+    rs->point_size = pack_float_16_6x(state->point_size) |
+        (pack_float_16_6x(state->point_size) << R300_POINTSIZE_X_SHIFT);
+
+    rs->line_control = pack_float_16_6x(state->line_width) |
+        R300_GA_LINE_CNTL_END_TYPE_COMP;
+
+    /* 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);
+    }
+
+    if (state->line_stipple_enable) {
+        rs->line_stipple_config =
+            R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE |
+            (pack_float_32((float)state->line_stipple_factor) &
+                R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK);
+        /* XXX this might need to be scaled up */
+        rs->line_stipple_value = state->line_stipple_pattern;
+    }
+
+    rs->rs = *state;
+
+    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);
+    struct r300_rs_state* rs = (struct r300_rs_state*)state;
+
+    draw_set_rasterizer_state(r300->draw, &rs->rs);
+
+    r300->rs_state = rs;
+    r300->dirty_state |= R300_NEW_RASTERIZER;
+}
+
+/* Free rasterizer state. */
+static void r300_delete_rs_state(struct pipe_context* pipe, void* state)
+{
+    FREE(state);
+}
+
+static uint32_t translate_wrap(int wrap) {
+    switch (wrap) {
+        case PIPE_TEX_WRAP_REPEAT:
+            return R300_TX_REPEAT;
+        case PIPE_TEX_WRAP_CLAMP:
+            return R300_TX_CLAMP;
+        case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+            return R300_TX_CLAMP_TO_EDGE;
+        case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+            return R300_TX_CLAMP_TO_BORDER;
+        case PIPE_TEX_WRAP_MIRROR_REPEAT:
+            return R300_TX_REPEAT | R300_TX_MIRRORED;
+        case PIPE_TEX_WRAP_MIRROR_CLAMP:
+            return R300_TX_CLAMP | R300_TX_MIRRORED;
+        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+            return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
+        case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
+            return R300_TX_CLAMP_TO_EDGE | R300_TX_MIRRORED;
+        default:
+            debug_printf("r300: Unknown texture wrap %d", wrap);
+            return 0;
+    }
+}
+
+static uint32_t translate_tex_filters(int min, int mag, int mip) {
+    uint32_t retval = 0;
+    switch (min) {
+        case PIPE_TEX_FILTER_NEAREST:
+            retval |= R300_TX_MIN_FILTER_NEAREST;
+        case PIPE_TEX_FILTER_LINEAR:
+            retval |= R300_TX_MIN_FILTER_LINEAR;
+        case PIPE_TEX_FILTER_ANISO:
+            retval |= R300_TX_MIN_FILTER_ANISO;
+        default:
+            debug_printf("r300: Unknown texture filter %d", min);
+            break;
+    }
+    switch (mag) {
+        case PIPE_TEX_FILTER_NEAREST:
+            retval |= R300_TX_MAG_FILTER_NEAREST;
+        case PIPE_TEX_FILTER_LINEAR:
+            retval |= R300_TX_MAG_FILTER_LINEAR;
+        case PIPE_TEX_FILTER_ANISO:
+            retval |= R300_TX_MAG_FILTER_ANISO;
+        default:
+            debug_printf("r300: Unknown texture filter %d", mag);
+            break;
+    }
+    switch (mip) {
+        case PIPE_TEX_MIPFILTER_NONE:
+            retval |= R300_TX_MIN_FILTER_MIP_NONE;
+        case PIPE_TEX_MIPFILTER_NEAREST:
+            retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
+        case PIPE_TEX_MIPFILTER_LINEAR:
+            retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
+        default:
+            debug_printf("r300: Unknown texture filter %d", mip);
+            break;
+    }
+
+    return retval;
+}
+
+static uint32_t anisotropy(float max_aniso) {
+    if (max_aniso >= 16.0f) {
+        return R300_TX_MAX_ANISO_16_TO_1;
+    } else if (max_aniso >= 8.0f) {
+        return R300_TX_MAX_ANISO_8_TO_1;
+    } else if (max_aniso >= 4.0f) {
+        return R300_TX_MAX_ANISO_4_TO_1;
+    } else if (max_aniso >= 2.0f) {
+        return R300_TX_MAX_ANISO_2_TO_1;
+    } else {
+        return R300_TX_MAX_ANISO_1_TO_1;
+    }
+}
+
+static void*
+        r300_create_sampler_state(struct pipe_context* pipe,
+                                  const struct pipe_sampler_state* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    struct r300_sampler_state* sampler = CALLOC_STRUCT(r300_sampler_state);
+    int lod_bias;
+
+    sampler->filter0 |=
+        (translate_wrap(state->wrap_s) << R300_TX_WRAP_S_SHIFT) |
+        (translate_wrap(state->wrap_t) << R300_TX_WRAP_T_SHIFT) |
+        (translate_wrap(state->wrap_r) << R300_TX_WRAP_R_SHIFT);
+
+    sampler->filter0 |= translate_tex_filters(state->min_img_filter,
+                                              state->mag_img_filter,
+                                              state->min_mip_filter);
+
+    lod_bias = CLAMP((int)(state->lod_bias * 32), -(1 << 9), (1 << 9) - 1);
+
+    sampler->filter1 |= lod_bias << R300_LOD_BIAS_SHIFT;
+
+    sampler->filter1 |= anisotropy(state->max_anisotropy);
+
+    util_pack_color(state->border_color, PIPE_FORMAT_A8R8G8B8_UNORM,
+                    &sampler->border_color);
+
+    /* R500-specific fixups and optimizations */
+    if (r300_screen(r300->context.screen)->caps->is_r500) {
+        sampler->filter1 |= R500_BORDER_FIX;
+    }
+
+    return (void*)sampler;
+}
+
+static void r300_bind_sampler_states(struct pipe_context* pipe,
+                                     unsigned count,
+                                     void** states)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    int i;
+
+    if (count > 8) {
+        return;
+    }
+
+    for (i = 0; i < count; i++) {
+        if (r300->sampler_states[i] != states[i]) {
+            r300->sampler_states[i] = (struct r300_sampler_state*)states[i];
+            r300->dirty_state |= (R300_NEW_SAMPLER << i);
+        }
+    }
+
+    r300->sampler_count = count;
+}
+
+static void r300_delete_sampler_state(struct pipe_context* pipe, void* state)
+{
+    FREE(state);
+}
+
+static void r300_set_sampler_textures(struct pipe_context* pipe,
+                                      unsigned count,
+                                      struct pipe_texture** texture)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    int i;
+
+    /* XXX magic num */
+    if (count > 8) {
+        return;
+    }
+
+    for (i = 0; i < count; i++) {
+        if (r300->textures[i] != (struct r300_texture*)texture[i]) {
+            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
+                texture[i]);
+            r300->dirty_state |= (R300_NEW_TEXTURE << i);
+        }
+    }
+
+    for (i = count; i < 8; i++) {
+        if (r300->textures[i]) {
+            pipe_texture_reference((struct pipe_texture**)&r300->textures[i],
+                NULL);
+            r300->dirty_state |= (R300_NEW_TEXTURE << i);
+        }
+    }
+
+    r300->texture_count = count;
+}
+
+static void r300_set_scissor_state(struct pipe_context* pipe,
+                                   const struct pipe_scissor_state* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    draw_flush(r300->draw);
+
+    r300->scissor_state->scissor_top_left =
+        (state->minx << R300_SCISSORS_X_SHIFT) |
+        (state->miny << R300_SCISSORS_Y_SHIFT);
+    r300->scissor_state->scissor_bottom_right =
+        (state->maxx << R300_SCISSORS_X_SHIFT) |
+        (state->maxy << R300_SCISSORS_Y_SHIFT);
+
+    r300->dirty_state |= R300_NEW_SCISSOR;
+}
+
+static void r300_set_viewport_state(struct pipe_context* pipe,
+                                    const struct pipe_viewport_state* state)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    /* XXX handing this off to Draw for now */
+    draw_set_viewport_state(r300->draw, state);
+}
+
+static void r300_set_vertex_buffers(struct pipe_context* pipe,
+                                    unsigned count,
+                                    const struct pipe_vertex_buffer* buffers)
+{
+    struct r300_context* r300 = r300_context(pipe);
+
+    memcpy(r300->vertex_buffers, buffers,
+        sizeof(struct pipe_vertex_buffer) * count);
+
+    r300->vertex_buffer_count = count;
+
+    draw_flush(r300->draw);
+    draw_set_vertex_buffers(r300->draw, count, buffers);
+}
+
+static void r300_set_vertex_elements(struct pipe_context* pipe,
+                                    unsigned count,
+                                    const struct pipe_vertex_element* elements)
+{
+    struct r300_context* r300 = r300_context(pipe);
+    /* XXX Draw */
+    draw_flush(r300->draw);
+    draw_set_vertex_elements(r300->draw, count, elements);
+}
+
+static void* r300_create_vs_state(struct pipe_context* pipe,
+                                  const struct pipe_shader_state* state)
+{
+    struct r300_context* context = r300_context(pipe);
+    /* XXX handing this off to Draw for now */
+    return draw_create_vertex_shader(context->draw, state);
+}
+
+static void r300_bind_vs_state(struct pipe_context* pipe, void* state) {
+    struct r300_context* context = r300_context(pipe);
+    /* XXX handing this off to Draw for now */
+    draw_bind_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
+}
+
+static void r300_delete_vs_state(struct pipe_context* pipe, void* state)
+{
+    struct r300_context* context = r300_context(pipe);
+    /* XXX handing this off to Draw for now */
+    draw_delete_vertex_shader(context->draw, (struct draw_vertex_shader*)state);
+}
+
+void r300_init_state_functions(struct r300_context* r300)
+{
+    r300->context.create_blend_state = r300_create_blend_state;
+    r300->context.bind_blend_state = r300_bind_blend_state;
+    r300->context.delete_blend_state = r300_delete_blend_state;
+
+    r300->context.set_blend_color = r300_set_blend_color;
+
+    r300->context.set_clip_state = r300_set_clip_state;
+
+    r300->context.set_constant_buffer = r300_set_constant_buffer;
+
+    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;
+
+    r300->context.set_edgeflags = r300_set_edgeflags;
+
+    r300->context.set_framebuffer_state = r300_set_framebuffer_state;
+
+    r300->context.create_fs_state = r300_create_fs_state;
+    r300->context.bind_fs_state = r300_bind_fs_state;
+    r300->context.delete_fs_state = r300_delete_fs_state;
+
+    r300->context.set_polygon_stipple = r300_set_polygon_stipple;
+
+    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_sampler_state = r300_create_sampler_state;
+    r300->context.bind_sampler_states = r300_bind_sampler_states;
+    r300->context.delete_sampler_state = r300_delete_sampler_state;
+
+    r300->context.set_sampler_textures = r300_set_sampler_textures;
+
+    r300->context.set_scissor_state = r300_set_scissor_state;
+
+    r300->context.set_viewport_state = r300_set_viewport_state;
+
+    r300->context.set_vertex_buffers = r300_set_vertex_buffers;
+    r300->context.set_vertex_elements = r300_set_vertex_elements;
+
+    r300->context.create_vs_state = r300_create_vs_state;
+    r300->context.bind_vs_state = r300_bind_vs_state;
+    r300->context.delete_vs_state = r300_delete_vs_state;
+}