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, 282 insertions, 0 deletions

diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
new file mode 100644
index 00000000000..d7354ad893e
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright 2008 Corbin Simpson <[email protected]>
+ *
+ * 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 "r300_screen.h"
+
+/* Return the identifier behind whom the brave coders responsible for this
+ * amalgamation of code, sweat, and duct tape, routinely obscure their names.
+ *
+ * ...I should have just put "Corbin Simpson", but I'm not that cool.
+ *
+ * (Or egotistical. Yet.) */
+static const char* r300_get_vendor(struct pipe_screen* pscreen)
+{
+    return "X.Org R300 Project";
+}
+
+static const char* chip_families[] = {
+    "R300",
+    "R350",
+    "R360",
+    "RV350",
+    "RV370",
+    "RV380",
+    "R420",
+    "R423",
+    "R430",
+    "R480",
+    "R481",
+    "RV410",
+    "RS400",
+    "RC410",
+    "RS480",
+    "RS482",
+    "RS690",
+    "RS740",
+    "RV515",
+    "R520",
+    "RV530",
+    "R580",
+    "RV560",
+    "RV570"
+};
+
+static const char* r300_get_name(struct pipe_screen* pscreen)
+{
+    struct r300_screen* r300screen = r300_screen(pscreen);
+
+    return chip_families[r300screen->caps->family];
+}
+
+static int r300_get_param(struct pipe_screen* pscreen, int param)
+{
+    struct r300_screen* r300screen = r300_screen(pscreen);
+
+    switch (param) {
+        /* XXX cases marked "IN THEORY" are possible on the hardware,
+         * but haven't been implemented yet. */
+        case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
+            /* XXX I'm told this goes up to 16 */
+            return 8;
+        case PIPE_CAP_NPOT_TEXTURES:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_TWO_SIDED_STENCIL:
+            if (r300screen->caps->is_r500) {
+                return 1;
+            } else {
+                return 0;
+            }
+            return 0;
+        case PIPE_CAP_GLSL:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_S3TC:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_ANISOTROPIC_FILTER:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_POINT_SPRITE:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_MAX_RENDER_TARGETS:
+            return 4;
+        case PIPE_CAP_OCCLUSION_QUERY:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_TEXTURE_SHADOW_MAP:
+            /* IN THEORY */
+            return 0;
+        case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+            if (r300screen->caps->is_r500) {
+                /* 13 == 4096x4096 */
+                return 13;
+            } else {
+                /* 12 == 2048x2048 */
+                return 12;
+            }
+        case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+            /* So, technically, the limit is the same as above, but some math
+             * shows why this is silly. Assuming RGBA, 4cpp, we can see that
+             * 4096*4096*4096 = 64.0 GiB exactly, so it's not exactly
+             * practical. However, if at some point a game really wants this,
+             * then we can remove or raise this limit. */
+            if (r300screen->caps->is_r500) {
+                /* 9 == 256x256x256 */
+                return 9;
+            } else {
+                /* 8 == 128*128*128 */
+                return 8;
+            }
+        case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+            if (r300screen->caps->is_r500) {
+                /* 13 == 4096x4096 */
+                return 13;
+            } else {
+                /* 12 == 2048x2048 */
+                return 12;
+            }
+        case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
+            return 1;
+        case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
+            return 1;
+        case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
+            /* XXX guessing (what a terrible guess) */
+            return 2;
+        default:
+            debug_printf("r300: Implementation error: Bad param %d\n",
+                param);
+            return 0;
+    }
+}
+
+static float r300_get_paramf(struct pipe_screen* pscreen, int param)
+{
+    switch (param) {
+        case PIPE_CAP_MAX_LINE_WIDTH:
+        case PIPE_CAP_MAX_LINE_WIDTH_AA:
+            /* XXX this is the biggest thing that will fit in that register.
+            * Perhaps the actual rendering limits are less? */
+            return 10922.0f;
+        case PIPE_CAP_MAX_POINT_WIDTH:
+        case PIPE_CAP_MAX_POINT_WIDTH_AA:
+            /* XXX this is the biggest thing that will fit in that register.
+             * Perhaps the actual rendering limits are less? */
+            return 10922.0f;
+        case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
+            return 16.0f;
+        case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
+            return 16.0f;
+        default:
+            debug_printf("r300: Implementation error: Bad paramf %d\n",
+                param);
+            return 0.0f;
+    }
+}
+
+/* XXX even moar formats */
+static boolean check_tex_2d_format(enum pipe_format format)
+{
+    switch (format) {
+        /* Colorbuffer */
+        case PIPE_FORMAT_A8R8G8B8_UNORM:
+        /* Texture */
+        case PIPE_FORMAT_I8_UNORM:
+        /* Z buffer */
+        case PIPE_FORMAT_Z16_UNORM:
+        /* Z buffer with stencil */
+        case PIPE_FORMAT_Z24S8_UNORM:
+            return TRUE;
+
+        /* These formats are explicitly not supported, in order to keep
+         * people from wasting their time trying to implement them... */
+        case PIPE_FORMAT_S8Z24_UNORM:
+            return FALSE;
+
+        default:
+            debug_printf("r300: Warning: Got unknown format: %s, in %s\n",
+                pf_name(format), __FUNCTION__);
+            break;
+    }
+
+    return FALSE;
+}
+
+/* XXX moar targets */
+static boolean r300_is_format_supported(struct pipe_screen* pscreen,
+                                        enum pipe_format format,
+                                        enum pipe_texture_target target,
+                                        unsigned tex_usage,
+                                        unsigned geom_flags)
+{
+    switch (target) {
+        case PIPE_TEXTURE_2D:
+            return check_tex_2d_format(format);
+        default:
+            debug_printf("r300: Warning: Got unknown format target: %d\n",
+                format);
+            break;
+    }
+
+    return FALSE;
+}
+
+static void* r300_surface_map(struct pipe_screen* screen,
+                              struct pipe_surface* surface,
+                              unsigned flags)
+{
+    struct r300_texture* tex = (struct r300_texture*)surface->texture;
+    char* map = pipe_buffer_map(screen, tex->buffer, flags);
+
+    if (!map) {
+        return NULL;
+    }
+
+    return map + surface->offset;
+}
+
+static void r300_surface_unmap(struct pipe_screen* screen,
+                               struct pipe_surface* surface)
+{
+    struct r300_texture* tex = (struct r300_texture*)surface->texture;
+    pipe_buffer_unmap(screen, tex->buffer);
+}
+
+static void r300_destroy_screen(struct pipe_screen* pscreen)
+{
+    struct r300_screen* r300screen = r300_screen(pscreen);
+
+    FREE(r300screen->caps);
+    FREE(r300screen);
+}
+
+struct pipe_screen* r300_create_screen(struct pipe_winsys* winsys,
+                                       struct r300_winsys* r300_winsys)
+{
+    struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen);
+    struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities);
+
+    if (!r300screen || !caps)
+        return NULL;
+
+    caps->pci_id = r300_winsys->pci_id;
+    caps->num_frag_pipes = r300_winsys->gb_pipes;
+
+    r300_parse_chipset(caps);
+
+    r300screen->caps = caps;
+    r300screen->screen.winsys = winsys;
+    r300screen->screen.destroy = r300_destroy_screen;
+    r300screen->screen.get_name = r300_get_name;
+    r300screen->screen.get_vendor = r300_get_vendor;
+    r300screen->screen.get_param = r300_get_param;
+    r300screen->screen.get_paramf = r300_get_paramf;
+    r300screen->screen.is_format_supported = r300_is_format_supported;
+    r300screen->screen.surface_map = r300_surface_map;
+    r300screen->screen.surface_unmap = r300_surface_unmap;
+
+    r300_init_screen_texture_functions(&r300screen->screen);
+    u_simple_screen_init(&r300screen->screen);
+
+    return &r300screen->screen;
+}