raedon/r200/r300: mega-FBO commits.

Re work depth issues.
Do a lot more FBO abstactions
fixup depth/stencil buffer interactions

5 files changed, 34 insertions, 258 deletions

diff --git a/src/mesa/drivers/dri/r200/r200_context.c b/src/mesa/drivers/dri/r200/r200_context.c
index bf06c419d16..6fd0575898f 100644
--- a/src/mesa/drivers/dri/r200/r200_context.c
+++ b/src/mesa/drivers/dri/r200/r200_context.c
@@ -72,6 +72,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define need_GL_EXT_blend_func_separate
 #define need_GL_NV_vertex_program
 #define need_GL_ARB_point_parameters
+#define need_GL_EXT_framebuffer_object
 #include "extension_helper.h"
 
 #define DRIVER_DATE	"20060602"
@@ -124,6 +125,7 @@ const struct dri_extension card_extensions[] =
     { "GL_EXT_blend_minmax",               GL_EXT_blend_minmax_functions },
     { "GL_EXT_blend_subtract",             NULL },
     { "GL_EXT_fog_coord",                  GL_EXT_fog_coord_functions },
+    { "GL_EXT_packed_depth_stencil",	   NULL},
     { "GL_EXT_secondary_color",            GL_EXT_secondary_color_functions },
     { "GL_EXT_stencil_wrap",               NULL },
     { "GL_EXT_texture_edge_clamp",         NULL },
@@ -165,6 +167,11 @@ const struct dri_extension point_extensions[] = {
     { NULL,                                NULL }
 };
 
+const struct dri_extension mm_extensions[] = {
+  { "GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions },
+  { NULL, NULL }
+};
+
 extern const struct tnl_pipeline_stage _r200_render_stage;
 extern const struct tnl_pipeline_stage _r200_tcl_stage;
 
@@ -418,6 +425,9 @@ GLboolean r200CreateContext( const __GLcontextModes *glVisual,
    _math_matrix_set_identity( &rmesa->tmpmat );
 
    driInitExtensions( ctx, card_extensions, GL_TRUE );
+
+   if (rmesa->radeon.radeonScreen->kernel_mm)
+     driInitExtensions(ctx, mm_extensions, GL_FALSE);
    if (!(rmesa->radeon.radeonScreen->chip_flags & R200_CHIPSET_YCBCR_BROKEN)) {
      /* yuv textures don't work with some chips - R200 / rv280 okay so far
 	others get the bit ordering right but don't actually do YUV-RGB conversion */
diff --git a/src/mesa/drivers/dri/r200/r200_context.h b/src/mesa/drivers/dri/r200/r200_context.h
index f7bad2a2414..fcbe725d6fc 100644
--- a/src/mesa/drivers/dri/r200/r200_context.h
+++ b/src/mesa/drivers/dri/r200/r200_context.h
@@ -621,21 +621,6 @@ struct r200_context {
    GLboolean texmicrotile;
 
   struct ati_fragment_shader *afs_loaded;
-
-  struct {
-      struct gl_fragment_program *bitmap_fp;
-      struct gl_vertex_program *passthrough_vp;
-
-      struct gl_fragment_program *saved_fp;
-      GLboolean saved_fp_enable;
-      struct gl_vertex_program *saved_vp;
-      GLboolean saved_vp_enable;
-
-      GLint saved_vp_x, saved_vp_y;
-      GLsizei saved_vp_width, saved_vp_height;
-      GLenum saved_matrix_mode;
-   } meta;
-
 };
 
 #define R200_CONTEXT(ctx)		((r200ContextPtr)(ctx->DriverCtx))
diff --git a/src/mesa/drivers/dri/r200/r200_ioctl.c b/src/mesa/drivers/dri/r200/r200_ioctl.c
index 96ed49665b2..ccb56202f6d 100644
--- a/src/mesa/drivers/dri/r200/r200_ioctl.c
+++ b/src/mesa/drivers/dri/r200/r200_ioctl.c
@@ -41,19 +41,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "main/context.h"
 #include "swrast/swrast.h"
 
-#include "main/blend.h"
-#include "main/bufferobj.h"
-#include "main/buffers.h"
-#include "main/depth.h"
-#include "main/shaders.h"
-#include "main/texstate.h"
-#include "main/varray.h"
-#include "glapi/dispatch.h"
-#include "swrast/swrast.h"
-#include "main/stencil.h"
-#include "main/matrix.h"
-#include "main/attrib.h"
-#include "main/enable.h"
+
 
 #include "radeon_common.h"
 #include "radeon_lock.h"
@@ -70,217 +58,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define R200_TIMEOUT             512
 #define R200_IDLE_RETRY           16
 
-static void
-r200_meta_set_passthrough_transform(r200ContextPtr r200)
-{
-   GLcontext *ctx = r200->radeon.glCtx;
-
-   r200->meta.saved_vp_x = ctx->Viewport.X;
-   r200->meta.saved_vp_y = ctx->Viewport.Y;
-   r200->meta.saved_vp_width = ctx->Viewport.Width;
-   r200->meta.saved_vp_height = ctx->Viewport.Height;
-   r200->meta.saved_matrix_mode = ctx->Transform.MatrixMode;
-
-   _mesa_Viewport(0, 0, ctx->DrawBuffer->Width, ctx->DrawBuffer->Height);
-
-   _mesa_MatrixMode(GL_PROJECTION);
-   _mesa_PushMatrix();
-   _mesa_LoadIdentity();
-   _mesa_Ortho(0, ctx->DrawBuffer->Width, 0, ctx->DrawBuffer->Height, 1, -1);
-
-   _mesa_MatrixMode(GL_MODELVIEW);
-   _mesa_PushMatrix();
-   _mesa_LoadIdentity();
-}
-
-static void
-r200_meta_restore_transform(r200ContextPtr r200)
-{
-   _mesa_MatrixMode(GL_PROJECTION);
-   _mesa_PopMatrix();
-   _mesa_MatrixMode(GL_MODELVIEW);
-   _mesa_PopMatrix();
-
-   _mesa_MatrixMode(r200->meta.saved_matrix_mode);
-
-   _mesa_Viewport(r200->meta.saved_vp_x, r200->meta.saved_vp_y,
-		  r200->meta.saved_vp_width, r200->meta.saved_vp_height);
-}
-
-/**
- * Perform glClear where mask contains only color, depth, and/or stencil.
- *
- * The implementation is based on calling into Mesa to set GL state and
- * performing normal triangle rendering.  The intent of this path is to
- * have as generic a path as possible, so that any driver could make use of
- * it.
- */
-static void radeon_clear_tris(GLcontext *ctx, GLbitfield mask)
-{
-   r200ContextPtr rmesa = R200_CONTEXT(ctx);
-   GLfloat vertices[4][3];
-   GLfloat color[4][4];
-   GLfloat dst_z;
-   struct gl_framebuffer *fb = ctx->DrawBuffer;
-   int i;
-   GLboolean saved_fp_enable = GL_FALSE, saved_vp_enable = GL_FALSE;
-   GLboolean saved_shader_program = 0;
-   unsigned int saved_active_texture;
-   
-   assert((mask & ~(BUFFER_BIT_BACK_LEFT | BUFFER_BIT_FRONT_LEFT |
-		    BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL)) == 0);
-
-   _mesa_PushAttrib(GL_COLOR_BUFFER_BIT |
-		    GL_CURRENT_BIT |
-		    GL_DEPTH_BUFFER_BIT |
-		    GL_ENABLE_BIT |
-		    GL_STENCIL_BUFFER_BIT |
-		    GL_TRANSFORM_BIT |
-		    GL_CURRENT_BIT);
-   _mesa_PushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
-   saved_active_texture = ctx->Texture.CurrentUnit;
-  
-  /* Disable existing GL state we don't want to apply to a clear. */
-   _mesa_Disable(GL_ALPHA_TEST);
-   _mesa_Disable(GL_BLEND);
-   _mesa_Disable(GL_CULL_FACE);
-   _mesa_Disable(GL_FOG);
-   _mesa_Disable(GL_POLYGON_SMOOTH);
-   _mesa_Disable(GL_POLYGON_STIPPLE);
-   _mesa_Disable(GL_POLYGON_OFFSET_FILL);
-   _mesa_Disable(GL_LIGHTING);
-   _mesa_Disable(GL_CLIP_PLANE0);
-   _mesa_Disable(GL_CLIP_PLANE1);
-   _mesa_Disable(GL_CLIP_PLANE2);
-   _mesa_Disable(GL_CLIP_PLANE3);
-   _mesa_Disable(GL_CLIP_PLANE4);
-   _mesa_Disable(GL_CLIP_PLANE5);
-   if (ctx->Extensions.ARB_fragment_program && ctx->FragmentProgram.Enabled) {
-      saved_fp_enable = GL_TRUE;
-      _mesa_Disable(GL_FRAGMENT_PROGRAM_ARB);
-   }
-   if (ctx->Extensions.ARB_vertex_program && ctx->VertexProgram.Enabled) {
-      saved_vp_enable = GL_TRUE;
-      _mesa_Disable(GL_VERTEX_PROGRAM_ARB);
-   }
-   if (ctx->Extensions.ARB_shader_objects && ctx->Shader.CurrentProgram) {
-      saved_shader_program = ctx->Shader.CurrentProgram->Name;
-      _mesa_UseProgramObjectARB(0);
-   }
-   
-   if (ctx->Texture._EnabledUnits != 0) {
-      int i;
-      
-      for (i = 0; i < ctx->Const.MaxTextureUnits; i++) {
-	 _mesa_ActiveTextureARB(GL_TEXTURE0 + i);
-	 _mesa_Disable(GL_TEXTURE_1D);
-	 _mesa_Disable(GL_TEXTURE_2D);
-	 _mesa_Disable(GL_TEXTURE_3D);
-	 if (ctx->Extensions.ARB_texture_cube_map)
-	    _mesa_Disable(GL_TEXTURE_CUBE_MAP_ARB);
-	 if (ctx->Extensions.NV_texture_rectangle)
-	    _mesa_Disable(GL_TEXTURE_RECTANGLE_NV);
-	 if (ctx->Extensions.MESA_texture_array) {
-	    _mesa_Disable(GL_TEXTURE_1D_ARRAY_EXT);
-	    _mesa_Disable(GL_TEXTURE_2D_ARRAY_EXT);
-	 }
-      }
-   }
-  
-   r200_meta_set_passthrough_transform(rmesa);
-   
-   for (i = 0; i < 4; i++) {
-      color[i][0] = ctx->Color.ClearColor[0];
-      color[i][1] = ctx->Color.ClearColor[1];
-      color[i][2] = ctx->Color.ClearColor[2];
-      color[i][3] = ctx->Color.ClearColor[3];
-   }
-
-   /* convert clear Z from [0,1] to NDC coord in [-1,1] */
-   dst_z = -1.0 + 2.0 * ctx->Depth.Clear;
-   
-   /* Prepare the vertices, which are the same regardless of which buffer we're
-    * drawing to.
-    */
-   vertices[0][0] = fb->_Xmin;
-   vertices[0][1] = fb->_Ymin;
-   vertices[0][2] = dst_z;
-   vertices[1][0] = fb->_Xmax;
-   vertices[1][1] = fb->_Ymin;
-   vertices[1][2] = dst_z;
-   vertices[2][0] = fb->_Xmax;
-   vertices[2][1] = fb->_Ymax;
-   vertices[2][2] = dst_z;
-   vertices[3][0] = fb->_Xmin;
-   vertices[3][1] = fb->_Ymax;
-   vertices[3][2] = dst_z;
-
-   _mesa_ColorPointer(4, GL_FLOAT, 4 * sizeof(GLfloat), &color);
-   _mesa_VertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), &vertices);
-   _mesa_Enable(GL_COLOR_ARRAY);
-   _mesa_Enable(GL_VERTEX_ARRAY);
-
-   while (mask != 0) {
-      GLuint this_mask = 0;
-
-      if (mask & BUFFER_BIT_BACK_LEFT)
-	 this_mask = BUFFER_BIT_BACK_LEFT;
-      else if (mask & BUFFER_BIT_FRONT_LEFT)
-	 this_mask = BUFFER_BIT_FRONT_LEFT;
-
-      /* Clear depth/stencil in the same pass as color. */
-      this_mask |= (mask & (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL));
-
-      /* Select the current color buffer and use the color write mask if
-       * we have one, otherwise don't write any color channels.
-       */
-      if (this_mask & BUFFER_BIT_FRONT_LEFT)
-	 _mesa_DrawBuffer(GL_FRONT_LEFT);
-      else if (this_mask & BUFFER_BIT_BACK_LEFT)
-	 _mesa_DrawBuffer(GL_BACK_LEFT);
-      else
-	 _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
-
-      /* Control writing of the depth clear value to depth. */
-      if (this_mask & BUFFER_BIT_DEPTH) {
-	 _mesa_DepthFunc(GL_ALWAYS);
-	 _mesa_Enable(GL_DEPTH_TEST);
-      } else {
-	 _mesa_Disable(GL_DEPTH_TEST);
-	 _mesa_DepthMask(GL_FALSE);
-      }
-
-      /* Control writing of the stencil clear value to stencil. */
-      if (this_mask & BUFFER_BIT_STENCIL) {
-	 _mesa_Enable(GL_STENCIL_TEST);
-	 _mesa_StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
-	 _mesa_StencilFuncSeparate(GL_FRONT, GL_ALWAYS, ctx->Stencil.Clear,
-				   ctx->Stencil.WriteMask[0]);
-      } else {
-	 _mesa_Disable(GL_STENCIL_TEST);
-      }
-
-      CALL_DrawArrays(ctx->Exec, (GL_TRIANGLE_FAN, 0, 4));
-
-      mask &= ~this_mask;
-   }
-
-   r200_meta_restore_transform(rmesa);
-
-   _mesa_ActiveTextureARB(GL_TEXTURE0 + saved_active_texture);
-   if (saved_fp_enable)
-      _mesa_Enable(GL_FRAGMENT_PROGRAM_ARB);
-   if (saved_vp_enable)
-      _mesa_Enable(GL_VERTEX_PROGRAM_ARB);
-
-   if (saved_shader_program)
-      _mesa_UseProgramObjectARB(saved_shader_program);
-
-   _mesa_PopClientAttrib();
-   _mesa_PopAttrib();
-}
-
-
 static void r200UserClear(GLcontext *ctx, GLuint mask)
 {
    radeon_clear_tris(ctx, mask);
@@ -449,7 +226,7 @@ static void r200Clear( GLcontext *ctx, GLbitfield mask )
       mask &= ~BUFFER_BIT_DEPTH;
    }
 
-   if ( (mask & BUFFER_BIT_STENCIL) && rmesa->radeon.state.stencil.hwBuffer ) {
+   if ( (mask & BUFFER_BIT_STENCIL) ) {
       flags |= RADEON_STENCIL;
       mask &= ~BUFFER_BIT_STENCIL;
    }
@@ -467,8 +244,7 @@ static void r200Clear( GLcontext *ctx, GLbitfield mask )
       flags |= RADEON_USE_COMP_ZBUF;
 /*      if (rmesa->radeon.radeonScreen->chip_family == CHIP_FAMILY_R200)
 	 flags |= RADEON_USE_HIERZ; */
-      if (!(rmesa->radeon.state.stencil.hwBuffer) ||
-	 ((flags & RADEON_DEPTH) && (flags & RADEON_STENCIL) &&
+      if (!((flags & RADEON_DEPTH) && (flags & RADEON_STENCIL) &&
 	    ((rmesa->radeon.state.stencil.clear & R200_STENCIL_WRITE_MASK) == R200_STENCIL_WRITE_MASK))) {
 	  flags |= RADEON_CLEAR_FASTZ;
       }
diff --git a/src/mesa/drivers/dri/r200/r200_state.c b/src/mesa/drivers/dri/r200/r200_state.c
index 74824b8d249..ca4dee8a5bc 100644
--- a/src/mesa/drivers/dri/r200/r200_state.c
+++ b/src/mesa/drivers/dri/r200/r200_state.c
@@ -740,7 +740,8 @@ static void r200PolygonOffset( GLcontext *ctx,
 			       GLfloat factor, GLfloat units )
 {
    r200ContextPtr rmesa = R200_CONTEXT(ctx);
-   float_ui32_type constant =  { units * rmesa->radeon.state.depth.scale };
+   const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
+   float_ui32_type constant =  { units * depthScale };
    float_ui32_type factoru = { factor };
 
 /*    factor *= 2; */
@@ -1611,6 +1612,7 @@ void r200UpdateWindow( GLcontext *ctx )
    GLfloat yoffset = dPriv ? (GLfloat) dPriv->y + dPriv->h : 0;
    const GLfloat *v = ctx->Viewport._WindowMap.m;
    const GLboolean render_to_fbo = (ctx->DrawBuffer ? (ctx->DrawBuffer->Name != 0) : 0);
+   const GLfloat depthScale = 1.0F / ctx->DrawBuffer->_DepthMaxF;
    GLfloat y_scale, y_bias;
 
    if (render_to_fbo) {
@@ -1625,8 +1627,8 @@ void r200UpdateWindow( GLcontext *ctx )
    float_ui32_type tx = { v[MAT_TX] + xoffset + SUBPIXEL_X };
    float_ui32_type sy = { v[MAT_SY] * y_scale };
    float_ui32_type ty = { (v[MAT_TY] * y_scale) + y_bias + SUBPIXEL_Y };
-   float_ui32_type sz = { v[MAT_SZ] * rmesa->radeon.state.depth.scale };
-   float_ui32_type tz = { v[MAT_TZ] * rmesa->radeon.state.depth.scale };
+   float_ui32_type sz = { v[MAT_SZ] * depthScale };
+   float_ui32_type tz = { v[MAT_TZ] * depthScale };
 
    R200_STATECHANGE( rmesa, vpt );
 
@@ -2014,15 +2016,24 @@ static void r200Enable( GLcontext *ctx, GLenum cap, GLboolean state )
       break;
 
    case GL_STENCIL_TEST:
-      if ( rmesa->radeon.state.stencil.hwBuffer ) {
-	 R200_STATECHANGE( rmesa, ctx );
-	 if ( state ) {
-	    rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |=  R200_STENCIL_ENABLE;
+      {
+	 GLboolean hw_stencil = GL_FALSE;
+	 if (ctx->DrawBuffer) {
+	    struct radeon_renderbuffer *rrbStencil
+	       = radeon_get_renderbuffer(ctx->DrawBuffer, BUFFER_STENCIL);
+	    hw_stencil = (rrbStencil && rrbStencil->bo);
+	 }
+
+	 if (hw_stencil) {
+	    R200_STATECHANGE( rmesa, ctx );
+	    if ( state ) {
+	       rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] |=  R200_STENCIL_ENABLE;
+	    } else {
+	       rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~R200_STENCIL_ENABLE;
+	    }
 	 } else {
-	    rmesa->hw.ctx.cmd[CTX_RB3D_CNTL] &= ~R200_STENCIL_ENABLE;
+	    FALLBACK( rmesa, R200_FALLBACK_STENCIL, state );
 	 }
-      } else {
-	 FALLBACK( rmesa, R200_FALLBACK_STENCIL, state );
       }
       break;
 
diff --git a/src/mesa/drivers/dri/r200/r200_state_init.c b/src/mesa/drivers/dri/r200/r200_state_init.c
index a71f33ca3bb..30326c29601 100644
--- a/src/mesa/drivers/dri/r200/r200_state_init.c
+++ b/src/mesa/drivers/dri/r200/r200_state_init.c
@@ -674,21 +674,15 @@ void r200InitState( r200ContextPtr rmesa )
    switch ( ctx->Visual.depthBits ) {
    case 16:
       rmesa->radeon.state.depth.clear = 0x0000ffff;
-      rmesa->radeon.state.depth.scale = 1.0 / (GLfloat)0xffff;
       rmesa->radeon.state.stencil.clear = 0x00000000;
       break;
    case 24:
    default:
       rmesa->radeon.state.depth.clear = 0x00ffffff;
-      rmesa->radeon.state.depth.scale = 1.0 / (GLfloat)0xffffff;
       rmesa->radeon.state.stencil.clear = 0xffff0000;
       break;
    }
 
-   /* Only have hw stencil when depth buffer is 24 bits deep */
-   rmesa->radeon.state.stencil.hwBuffer = ( ctx->Visual.stencilBits > 0 &&
-				     ctx->Visual.depthBits == 24 );
-
    rmesa->radeon.Fallback = 0;
 
    rmesa->radeon.hw.max_state_size = 0;