Merge commit 'origin/graw-tests'

8 files changed, 570 insertions, 66 deletions

diff --git a/src/gallium/include/state_tracker/graw.h b/src/gallium/include/state_tracker/graw.h
index 385e4d7718e..e5b298e03d9 100644
--- a/src/gallium/include/state_tracker/graw.h
+++ b/src/gallium/include/state_tracker/graw.h
@@ -17,20 +17,27 @@
 #include "pipe/p_format.h"
 
 struct pipe_screen;
-
-PUBLIC struct pipe_screen *graw_init( void );
+struct pipe_context;
 
 /* Returns a handle to be used with flush_frontbuffer()/present().
  *
  * Query format support with screen::is_format_supported and usage
  * XXX.
  */
-PUBLIC void *graw_create_window( int x,
-                                 int y,
-                                 unsigned width,
-                                 unsigned height,
-                                 enum pipe_format format );
+PUBLIC struct pipe_screen *graw_create_window_and_screen( int x,
+                                                          int y,
+                                                          unsigned width,
+                                                          unsigned height,
+                                                          enum pipe_format format,
+                                                          void **handle);
+
+PUBLIC void graw_set_display_func( void (*func)( void ) );
+PUBLIC void graw_main_loop( void );
+
+PUBLIC void *graw_parse_vertex_shader( struct pipe_context *pipe,
+                                       const char *text );
 
-PUBLIC void graw_destroy_window( void *handle );
+PUBLIC void *graw_parse_fragment_shader( struct pipe_context *pipe,
+                                         const char *text );
 
 #endif
diff --git a/src/gallium/targets/SConscript b/src/gallium/targets/SConscript
index ca3e1ec1327..9077cbf6a45 100644
--- a/src/gallium/targets/SConscript
+++ b/src/gallium/targets/SConscript
@@ -1,5 +1,8 @@
+import os
 Import('*')
 	
+# Compatibility with old build scripts:
+#
 if 'xlib' in env['winsys']:
 	SConscript([
 		'libgl-xlib/SConscript',
@@ -10,12 +13,7 @@ if 'gdi' in env['winsys']:
 		'libgl-gdi/SConscript',
 	])
 
-if env['platform'] == 'linux' and 'xlib' in env['winsys'] and 'graw-xlib' in env['winsys']:
-	SConscript([
-		'graw-xlib/SConscript',
-	])
-else:
-    if not env['msvc']:
+if not 'graw-xlib' in env['targets'] and not env['msvc']:
         # XXX: disable until MSVC can link correctly
         SConscript('graw-null/SConscript')
 
@@ -30,3 +28,13 @@ if 'xorg' in env['statetrackers']:
 		SConscript([
 			'xorg-vmwgfx/SConscript',
 		])
+
+# Ideally all non-target directories would produce convenience
+# libraries, and the actual shared libraries and other installables
+# would be finally assembled in the targets subtree:
+#
+for target in env['targets']:
+    SConscript(os.path.join(target, 'SConscript'))
+
+
+
diff --git a/src/gallium/targets/graw-xlib/SConscript b/src/gallium/targets/graw-xlib/SConscript
index ad84841922d..40332fa4e14 100644
--- a/src/gallium/targets/graw-xlib/SConscript
+++ b/src/gallium/targets/graw-xlib/SConscript
@@ -25,6 +25,7 @@ env.Append(CPPPATH = [
 
 sources = [
     'graw_xlib.c',
+    'graw_util.c',
 ]
 
 if True:
diff --git a/src/gallium/targets/graw-xlib/graw_util.c b/src/gallium/targets/graw-xlib/graw_util.c
new file mode 100644
index 00000000000..147532cdee1
--- /dev/null
+++ b/src/gallium/targets/graw-xlib/graw_util.c
@@ -0,0 +1,36 @@
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "tgsi/tgsi_text.h"
+#include "util/u_memory.h"
+#include "state_tracker/graw.h"
+
+
+/* Helper functions.  These are the same for all graw implementations.
+ */
+void *graw_parse_vertex_shader(struct pipe_context *pipe,
+                               const char *text)
+{
+   struct tgsi_token tokens[1024];
+   struct pipe_shader_state state;
+
+   if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+      return NULL;
+
+   state.tokens = tokens;
+   return pipe->create_vs_state(pipe, &state);
+}
+
+void *graw_parse_fragment_shader(struct pipe_context *pipe,
+                                 const char *text)
+{
+   struct tgsi_token tokens[1024];
+   struct pipe_shader_state state;
+
+   if (!tgsi_text_translate(text, tokens, Elements(tokens)))
+      return NULL;
+
+   state.tokens = tokens;
+   return pipe->create_fs_state(pipe, &state);
+}
+
diff --git a/src/gallium/targets/graw-xlib/graw_xlib.c b/src/gallium/targets/graw-xlib/graw_xlib.c
index 21715c26fdc..41120ba3c70 100644
--- a/src/gallium/targets/graw-xlib/graw_xlib.c
+++ b/src/gallium/targets/graw-xlib/graw_xlib.c
@@ -1,4 +1,5 @@
 #include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
 #include "util/u_debug.h"
 #include "util/u_memory.h"
 #include "target-helpers/wrap_screen.h"
@@ -27,21 +28,18 @@
 
 static struct {
    Display *display;
+   void (*draw)(void);
 } graw;
 
 
-struct pipe_screen *
-graw_init( void )
+static struct pipe_screen *
+graw_create_screen( void )
 {
    const char *default_driver;
    const char *driver;
    struct pipe_screen *screen = NULL;
    struct sw_winsys *winsys = NULL;
 
-   graw.display = XOpenDisplay(NULL);
-   if (graw.display == NULL)
-      return NULL;
-
    /* Create the underlying winsys, which performs presents to Xlib
     * drawables:
     */
@@ -78,14 +76,16 @@ graw_init( void )
  
 
 
-void *
-graw_create_window( int x,
-                    int y,
-                    unsigned width,
-                    unsigned height,
-                    enum pipe_format format )
+struct pipe_screen *
+graw_create_window_and_screen( int x,
+                               int y,
+                               unsigned width,
+                               unsigned height,
+                               enum pipe_format format,
+                               void **handle)
 {
-   struct xlib_drawable *handle = NULL;
+   struct pipe_screen *screen = NULL;
+   struct xlib_drawable *xlib_handle = NULL;
    XSetWindowAttributes attr;
    Window root;
    Window win = 0;
@@ -94,6 +94,9 @@ graw_create_window( int x,
    int n;
    int scrnum;
 
+   graw.display = XOpenDisplay(NULL);
+   if (graw.display == NULL)
+      return NULL;
 
    scrnum = DefaultScreen( graw.display );
    root = RootWindow( graw.display, scrnum );
@@ -105,8 +108,8 @@ graw_create_window( int x,
    if (graw.display == NULL)
       goto fail;
 
-   handle = CALLOC_STRUCT(xlib_drawable);
-   if (handle == NULL)
+   xlib_handle = CALLOC_STRUCT(xlib_drawable);
+   if (xlib_handle == NULL)
       goto fail;
 
 
@@ -148,7 +151,6 @@ graw_create_window( int x,
                               None, (char **)NULL, 0, &sizehints);
    }
 
-   XFree(visinfo);
    XMapWindow(graw.display, win);
    while (1) {
       XEvent e;
@@ -158,14 +160,27 @@ graw_create_window( int x,
       }
    }
    
-   handle->visual = visinfo->visual;
-   handle->drawable = (Drawable)win;
-   handle->depth = visinfo->depth;
-   return (void *)handle;
+   xlib_handle->visual = visinfo->visual;
+   xlib_handle->drawable = (Drawable)win;
+   xlib_handle->depth = visinfo->depth;
+   *handle = (void *)xlib_handle;
+
+   screen = graw_create_screen();
+   if (screen == NULL)
+      goto fail;
 
-fail:
-   FREE(handle);
    XFree(visinfo);
+   return screen;
+
+fail:
+   if (screen)
+      screen->destroy(screen);
+
+   if (xlib_handle)
+      FREE(xlib_handle);
+
+   if (visinfo)
+      XFree(visinfo);
 
    if (win)
       XDestroyWindow(graw.display, win);
@@ -174,8 +189,19 @@ fail:
 }
 
 
+void 
+graw_set_display_func( void (*draw)( void ) )
+{
+   graw.draw = draw;
+}
+
 void
-graw_destroy_window( void *xlib_drawable )
+graw_main_loop( void )
 {
+   int i;
+   for (i = 0; i < 10; i++) {
+      graw.draw();
+      sleep(1);
+   }
 }
 
diff --git a/src/gallium/tests/graw/SConscript b/src/gallium/tests/graw/SConscript
index 8a92ac2c499..7eab973db31 100644
--- a/src/gallium/tests/graw/SConscript
+++ b/src/gallium/tests/graw/SConscript
@@ -12,7 +12,9 @@ env.Prepend(LIBPATH = [graw.dir])
 env.Prepend(LIBS = ['graw'])
 
 progs = [
-    'clear'
+    'clear',
+    'tri',
+    'quad-tex',
 ]
 
 for prog in progs:
diff --git a/src/gallium/tests/graw/clear.c b/src/gallium/tests/graw/clear.c
index 84dd7807337..28c986eee64 100644
--- a/src/gallium/tests/graw/clear.c
+++ b/src/gallium/tests/graw/clear.c
@@ -20,33 +20,58 @@ enum pipe_format formats[] = {
 static const int WIDTH = 300;
 static const int HEIGHT = 300;
 
-int main( int argc, char *argv[] )
+struct pipe_screen *screen;
+struct pipe_context *ctx;
+struct pipe_surface *surf;
+static void *window = NULL;
+
+static void draw( void )
+{
+   float clear_color[4] = {1,0,1,1};
+
+   ctx->clear(ctx, PIPE_CLEAR_COLOR, clear_color, 0, 0);
+   ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+#if 0
+   /* At the moment, libgraw leaks out/makes available some of the
+    * symbols from gallium/auxiliary, including these debug helpers.
+    * Will eventually want to bless some of these paths, and lock the
+    * others down so they aren't accessible from test programs.
+    *
+    * This currently just happens to work on debug builds - a release
+    * build will probably fail to link here:
+    */
+   debug_dump_surface_bmp(ctx, "result.bmp", surf);
+#endif
+
+   screen->flush_frontbuffer(screen, surf, window);
+}
+
+static void init( void )
 {
-   struct pipe_screen *screen;
-   struct pipe_context *pipe;
-   struct pipe_surface *surf;
    struct pipe_framebuffer_state fb;
    struct pipe_resource *tex, templat;
-   void *window = NULL;
-   float clear_color[4] = {1,0,1,1};
    int i;
 
-   screen = graw_init();
-   if (screen == NULL)
-      exit(1);
-
+   /* It's hard to say whether window or screen should be created
+    * first.  Different environments would prefer one or the other.
+    *
+    * Also, no easy way of querying supported formats if the screen
+    * cannot be created first.
+    */
    for (i = 0; 
         window == NULL && formats[i] != PIPE_FORMAT_NONE;
         i++) {
       
-      window = graw_create_window(0,0,300,300, formats[i]);
+      screen = graw_create_window_and_screen(0,0,300,300,
+                                             formats[i],
+                                             &window);
    }
-   
    if (window == NULL)
       exit(2);
    
-   pipe = screen->context_create(screen, NULL);
-   if (pipe == NULL)
+   ctx = screen->context_create(screen, NULL);
+   if (ctx == NULL)
       exit(3);
 
    templat.target = PIPE_TEXTURE_2D;
@@ -57,10 +82,10 @@ int main( int argc, char *argv[] )
    templat.last_level = 0;
    templat.nr_samples = 1;
    templat.bind = (PIPE_BIND_RENDER_TARGET |
-                        PIPE_BIND_DISPLAY_TARGET);
+                   PIPE_BIND_DISPLAY_TARGET);
    
    tex = screen->resource_create(screen,
-                                &templat);
+                                 &templat);
    if (tex == NULL)
       exit(4);
 
@@ -76,21 +101,16 @@ int main( int argc, char *argv[] )
    fb.height = HEIGHT;
    fb.cbufs[0] = surf;
 
-   pipe->set_framebuffer_state(pipe, &fb);
-   pipe->clear(pipe, PIPE_CLEAR_COLOR, clear_color, 0, 0);
-   pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+   ctx->set_framebuffer_state(ctx, &fb);
+}
 
-   /* At the moment, libgraw includes/makes available all the symbols
-    * from gallium/auxiliary, including these debug helpers.  Will
-    * eventually want to bless some of these paths, and lock the
-    * others down so they aren't accessible from test programs.
-    */
-   if (0)
-      debug_dump_surface_bmp(pipe, "result.bmp", surf);
 
-   screen->flush_frontbuffer(screen, surf, window);
 
-   os_time_sleep(100*1000*100);
+int main( int argc, char *argv[] )
+{
+   init();
 
+   graw_set_display_func( draw );
+   graw_main_loop();
    return 0;
 }
diff --git a/src/gallium/tests/graw/quad-tex.c b/src/gallium/tests/graw/quad-tex.c
new file mode 100644
index 00000000000..91b1cf49edd
--- /dev/null
+++ b/src/gallium/tests/graw/quad-tex.c
@@ -0,0 +1,404 @@
+/* Display a cleared blue window.  This demo has no dependencies on
+ * any utility code, just the graw interface and gallium.
+ */
+
+#include "state_tracker/graw.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_shader_tokens.h"
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include <unistd.h>             /* for sleep() */
+
+#include "util/u_debug.h"       /* debug_dump_surface_bmp() */
+#include "util/u_inlines.h"
+#include "util/u_memory.h"      /* Offset() */
+#include "util/u_box.h"    
+
+enum pipe_format formats[] = {
+   PIPE_FORMAT_R8G8B8A8_UNORM,
+   PIPE_FORMAT_B8G8R8A8_UNORM,
+   PIPE_FORMAT_NONE
+};
+
+static const int WIDTH = 300;
+static const int HEIGHT = 300;
+
+static struct pipe_screen *screen = NULL;
+static struct pipe_context *ctx = NULL;
+static struct pipe_resource *rttex = NULL;
+static struct pipe_resource *samptex = NULL;
+static struct pipe_surface *surf = NULL;
+static struct pipe_sampler_view *sv = NULL;
+static void *sampler = NULL;
+static void *window = NULL;
+
+struct vertex {
+   float position[4];
+   float color[4];
+};
+
+static struct vertex vertices[] =
+{
+   { { 0.9, -0.9, 0.0, 1.0 },
+     { 1, 0, 0, 1 } },
+
+   { { 0.9,  0.9, 0.0, 1.0 },
+     { 1, 1, 0, 1 } },
+
+   { {-0.9,  0.9, 0.0, 1.0 },
+     { 0, 1, 0, 1 } },
+
+   { {-0.9,  -0.9, 0.0, 1.0 },
+     { 0, 0, 0, 1 } },
+};
+
+
+
+
+static void set_viewport( float x, float y,
+                          float width, float height,
+                          float near, float far)
+{
+   float z = far;
+   float half_width = (float)width / 2.0f;
+   float half_height = (float)height / 2.0f;
+   float half_depth = ((float)far - (float)near) / 2.0f;
+   struct pipe_viewport_state vp;
+
+   vp.scale[0] = half_width;
+   vp.scale[1] = half_height;
+   vp.scale[2] = half_depth;
+   vp.scale[3] = 1.0f;
+
+   vp.translate[0] = half_width + x;
+   vp.translate[1] = half_height + y;
+   vp.translate[2] = half_depth + z;
+   vp.translate[3] = 0.0f;
+
+   ctx->set_viewport_state( ctx, &vp );
+}
+
+static void set_vertices( void )
+{
+   struct pipe_vertex_element ve[2];
+   struct pipe_vertex_buffer vbuf;
+   void *handle;
+
+   memset(ve, 0, sizeof ve);
+
+   ve[0].src_offset = Offset(struct vertex, position);
+   ve[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+   ve[1].src_offset = Offset(struct vertex, color);
+   ve[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+
+   handle = ctx->create_vertex_elements_state(ctx, 2, ve);
+   ctx->bind_vertex_elements_state(ctx, handle);
+
+
+   vbuf.stride = sizeof( struct vertex );
+   vbuf.max_index = sizeof(vertices) / vbuf.stride;
+   vbuf.buffer_offset = 0;
+   vbuf.buffer = screen->user_buffer_create(screen,
+                                            vertices,
+                                            sizeof(vertices),
+                                            PIPE_BIND_VERTEX_BUFFER);
+
+   ctx->set_vertex_buffers(ctx, 1, &vbuf);
+}
+
+static void set_vertex_shader( void )
+{
+   void *handle;
+   const char *text =
+      "VERT\n"
+      "DCL IN[0]\n"
+      "DCL IN[1]\n"
+      "DCL OUT[0], POSITION\n"
+      "DCL OUT[1], GENERIC[0]\n"
+      "  0: MOV OUT[1], IN[1]\n"
+      "  1: MOV OUT[0], IN[0]\n"
+      "  2: END\n";
+
+   handle = graw_parse_vertex_shader(ctx, text);
+   ctx->bind_vs_state(ctx, handle);
+}
+
+static void set_fragment_shader( void )
+{
+   void *handle;
+   const char *text =
+      "FRAG\n"
+      "DCL IN[0], GENERIC[0], PERSPECTIVE\n"
+      "DCL OUT[0], COLOR\n"
+      "DCL TEMP[0]\n"
+      "DCL SAMP[0]\n"
+      "  0: TXP TEMP[0], IN[0], SAMP[0], 2D\n"
+      "  1: MOV OUT[0], TEMP[0]\n"
+      "  2: END\n";
+
+   handle = graw_parse_fragment_shader(ctx, text);
+   ctx->bind_fs_state(ctx, handle);
+}
+
+
+static void draw( void )
+{
+   float clear_color[4] = {.5,.5,.5,1};
+
+   ctx->clear(ctx, PIPE_CLEAR_COLOR, clear_color, 0, 0);
+   ctx->draw_arrays(ctx, PIPE_PRIM_QUADS, 0, 4);
+   ctx->flush(ctx, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+#if 0
+   /* At the moment, libgraw leaks out/makes available some of the
+    * symbols from gallium/auxiliary, including these debug helpers.
+    * Will eventually want to bless some of these paths, and lock the
+    * others down so they aren't accessible from test programs.
+    *
+    * This currently just happens to work on debug builds - a release
+    * build will probably fail to link here:
+    */
+   debug_dump_surface_bmp(ctx, "result.bmp", surf);
+#endif
+
+   screen->flush_frontbuffer(screen, surf, window);
+}
+
+#define SIZE 16
+
+static void init_tex( void )
+{ 
+   struct pipe_sampler_view sv_template;
+   struct pipe_sampler_state sampler_desc;
+   struct pipe_resource templat;
+   struct pipe_box box;
+   ubyte tex2d[SIZE][SIZE][4];
+   int s, t;
+
+#if (SIZE != 2)
+   for (s = 0; s < SIZE; s++) {
+      for (t = 0; t < SIZE; t++) {
+         if (0) {
+            int x = (s ^ t) & 1;
+	    tex2d[t][s][0] = (x) ? 0 : 63;
+	    tex2d[t][s][1] = (x) ? 0 : 128;
+	    tex2d[t][s][2] = 0;
+	    tex2d[t][s][3] = 0xff;
+         }
+         else {
+            int x = ((s ^ t) >> 2) & 1;
+	    tex2d[t][s][0] = s*255/(SIZE-1);
+	    tex2d[t][s][1] = t*255/(SIZE-1);
+	    tex2d[t][s][2] = (x) ? 0 : 128;
+	    tex2d[t][s][3] = 0xff;
+         }
+      }
+   }
+#else
+   tex2d[0][0][0] = 0;
+   tex2d[0][0][1] = 255;
+   tex2d[0][0][2] = 255;
+   tex2d[0][0][3] = 0;
+
+   tex2d[0][1][0] = 0;
+   tex2d[0][1][1] = 0;
+   tex2d[0][1][2] = 255;
+   tex2d[0][1][3] = 255;
+
+   tex2d[1][0][0] = 255;
+   tex2d[1][0][1] = 255;
+   tex2d[1][0][2] = 0;
+   tex2d[1][0][3] = 255;
+
+   tex2d[1][1][0] = 255;
+   tex2d[1][1][1] = 0;
+   tex2d[1][1][2] = 0;
+   tex2d[1][1][3] = 255;
+#endif
+
+   templat.target = PIPE_TEXTURE_2D;
+   templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
+   templat.width0 = SIZE;
+   templat.height0 = SIZE;
+   templat.depth0 = 1;
+   templat.last_level = 0;
+   templat.nr_samples = 1;
+   templat.bind = PIPE_BIND_SAMPLER_VIEW;
+
+   
+   samptex = screen->resource_create(screen,
+                                 &templat);
+   if (samptex == NULL)
+      exit(4);
+
+   u_box_2d(0,0,SIZE,SIZE, &box);
+
+   ctx->transfer_inline_write(ctx,
+                              samptex,
+                              u_subresource(0,0),
+                              PIPE_TRANSFER_WRITE,
+                              &box,
+                              tex2d,
+                              sizeof tex2d[0],
+                              sizeof tex2d);
+
+   /* Possibly read back & compare against original data:
+    */
+   if (0)
+   {
+      struct pipe_transfer *t;
+      uint32_t *ptr;
+      t = pipe_get_transfer(ctx, samptex,
+                            0, 0, 0, /* face, level, zslice */
+                            PIPE_TRANSFER_READ,
+                            0, 0, SIZE, SIZE); /* x, y, width, height */
+
+      ptr = ctx->transfer_map(ctx, t);
+
+      if (memcmp(ptr, tex2d, sizeof tex2d) != 0) {
+         assert(0);
+         exit(9);
+      }
+
+      ctx->transfer_unmap(ctx, t);
+
+      ctx->transfer_destroy(ctx, t);
+   }
+
+   memset(&sv_template, 0, sizeof sv_template);
+   sv_template.format = samptex->format;
+   sv_template.texture = samptex;
+   sv_template.first_level = 0;
+   sv_template.last_level = 0;
+   sv_template.swizzle_r = 0;
+   sv_template.swizzle_g = 1;
+   sv_template.swizzle_b = 2;
+   sv_template.swizzle_a = 3;
+   sv = ctx->create_sampler_view(ctx, samptex, &sv_template);
+   if (sv == NULL)
+      exit(5);
+
+   ctx->set_fragment_sampler_views(ctx, 1, &sv);
+   
+
+   memset(&sampler_desc, 0, sizeof sampler_desc);
+   sampler_desc.wrap_s = PIPE_TEX_WRAP_REPEAT;
+   sampler_desc.wrap_t = PIPE_TEX_WRAP_REPEAT;
+   sampler_desc.wrap_r = PIPE_TEX_WRAP_REPEAT;
+   sampler_desc.min_img_filter = PIPE_TEX_FILTER_NEAREST;
+   sampler_desc.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+   sampler_desc.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
+   sampler_desc.compare_mode = PIPE_TEX_COMPARE_NONE;
+   sampler_desc.compare_func = 0;
+   sampler_desc.normalized_coords = 1;
+   sampler_desc.max_anisotropy = 0;
+   
+   sampler = ctx->create_sampler_state(ctx, &sampler_desc);
+   if (sampler == NULL)
+      exit(6);
+
+   ctx->bind_fragment_sampler_states(ctx, 1, &sampler);
+   
+}
+
+static void init( void )
+{
+   struct pipe_framebuffer_state fb;
+   struct pipe_resource templat;
+   int i;
+
+   /* It's hard to say whether window or screen should be created
+    * first.  Different environments would prefer one or the other.
+    *
+    * Also, no easy way of querying supported formats if the screen
+    * cannot be created first.
+    */
+   for (i = 0; 
+        window == NULL && formats[i] != PIPE_FORMAT_NONE;
+        i++) {
+      
+      screen = graw_create_window_and_screen(0,0,300,300,
+                                             formats[i],
+                                             &window);
+   }
+   
+   ctx = screen->context_create(screen, NULL);
+   if (ctx == NULL)
+      exit(3);
+
+   templat.target = PIPE_TEXTURE_2D;
+   templat.format = formats[i];
+   templat.width0 = WIDTH;
+   templat.height0 = HEIGHT;
+   templat.depth0 = 1;
+   templat.last_level = 0;
+   templat.nr_samples = 1;
+   templat.bind = (PIPE_BIND_RENDER_TARGET |
+                   PIPE_BIND_DISPLAY_TARGET);
+   
+   rttex = screen->resource_create(screen,
+                                 &templat);
+   if (rttex == NULL)
+      exit(4);
+
+   surf = screen->get_tex_surface(screen, rttex, 0, 0, 0,
+                                  PIPE_BIND_RENDER_TARGET |
+                                  PIPE_BIND_DISPLAY_TARGET);
+   if (surf == NULL)
+      exit(5);
+
+   memset(&fb, 0, sizeof fb);
+   fb.nr_cbufs = 1;
+   fb.width = WIDTH;
+   fb.height = HEIGHT;
+   fb.cbufs[0] = surf;
+
+   ctx->set_framebuffer_state(ctx, &fb);
+   
+   {
+      struct pipe_blend_state blend;
+      void *handle;
+      memset(&blend, 0, sizeof blend);
+      blend.rt[0].colormask = PIPE_MASK_RGBA;
+      handle = ctx->create_blend_state(ctx, &blend);
+      ctx->bind_blend_state(ctx, handle);
+   }
+
+   {
+      struct pipe_depth_stencil_alpha_state depthstencil;
+      void *handle;
+      memset(&depthstencil, 0, sizeof depthstencil);
+      handle = ctx->create_depth_stencil_alpha_state(ctx, &depthstencil);
+      ctx->bind_depth_stencil_alpha_state(ctx, handle);
+   }
+
+   {
+      struct pipe_rasterizer_state rasterizer;
+      void *handle;
+      memset(&rasterizer, 0, sizeof rasterizer);
+      rasterizer.front_winding = PIPE_WINDING_CW;
+      rasterizer.cull_mode = PIPE_WINDING_NONE;
+      rasterizer.gl_rasterization_rules = 1;
+      handle = ctx->create_rasterizer_state(ctx, &rasterizer);
+      ctx->bind_rasterizer_state(ctx, handle);
+   }
+
+   set_viewport(0, 0, WIDTH, HEIGHT, 30, 1000);
+
+   init_tex();
+
+   set_vertices();
+   set_vertex_shader();
+   set_fragment_shader();
+}
+
+
+int main( int argc, char *argv[] )
+{
+   init();
+
+   graw_set_display_func( draw );
+   graw_main_loop();
+   return 0;
+}