gallium: add condition parameter to render_condition
[mesa.git] / src / gallium / auxiliary / util / u_blitter.h
index 922a8580ac15a3e68562034d0a247b79a3af0eb0..d9cefde500a6efb40161b784c2cbbe105b597002 100644 (file)
 
 #include "util/u_framebuffer.h"
 #include "util/u_inlines.h"
-#include "util/u_memory.h"
 
 #include "pipe/p_state.h"
 
+/* u_memory.h conflicts with st/mesa */
+#ifndef Elements
+#define Elements(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
 
 #ifdef __cplusplus
 extern "C" {
@@ -55,13 +59,13 @@ struct blitter_context
     * \param y1      A Y coordinate of the top-left corner.
     * \param x2      An X coordinate of the bottom-right corner.
     * \param y2      A Y coordinate of the bottom-right corner.
-    * \param depth  A depth which the rectangle is rendered at.
+    * \param depth   A depth which the rectangle is rendered at.
     *
     * \param type   Semantics of the attributes "attrib".
     *               If type is UTIL_BLITTER_ATTRIB_NONE, ignore them.
     *               If type is UTIL_BLITTER_ATTRIB_COLOR, the attributes
-    *               make up a constant RGBA color, and should go to the COLOR0
-    *               varying slot of a fragment shader.
+    *               make up a constant RGBA color, and should go
+    *               to the GENERIC0 varying slot of a fragment shader.
     *               If type is UTIL_BLITTER_ATTRIB_TEXCOORD, {a1, a2} and
     *               {a3, a4} specify top-left and bottom-right texture
     *               coordinates of the rectangle, respectively, and should go
@@ -74,10 +78,22 @@ struct blitter_context
     *       a rectangular point sprite.
     */
    void (*draw_rectangle)(struct blitter_context *blitter,
-                          unsigned x1, unsigned y1, unsigned x2, unsigned y2,
+                          int x1, int y1, int x2, int y2,
                           float depth,
                           enum blitter_attrib_type type,
-                          const float attrib[4]);
+                          const union pipe_color_union *color);
+
+   /**
+    * Get the next surface layer for the pipe surface, i.e. make a copy
+    * of the surface and increment the first and last layer by 1.
+    *
+    * This callback is exposed, so that drivers can override it if needed.
+    */
+   struct pipe_surface *(*get_next_surface_layer)(struct pipe_context *pipe,
+                                                  struct pipe_surface *surf);
+
+   /* Whether the blitter is running. */
+   boolean running;
 
    /* Private members, really. */
    struct pipe_context *pipe; /**< pipe context */
@@ -86,21 +102,30 @@ struct blitter_context
    void *saved_dsa_state;     /**< depth stencil alpha state */
    void *saved_velem_state;   /**< vertex elements state */
    void *saved_rs_state;      /**< rasterizer state */
-   void *saved_fs, *saved_vs; /**< fragment shader, vertex shader */
+   void *saved_fs, *saved_vs, *saved_gs; /**< shaders */
 
    struct pipe_framebuffer_state saved_fb_state;  /**< framebuffer state */
    struct pipe_stencil_ref saved_stencil_ref;     /**< stencil ref */
    struct pipe_viewport_state saved_viewport;
-   struct pipe_clip_state saved_clip;
+   struct pipe_scissor_state saved_scissor;
+   boolean is_sample_mask_saved;
+   unsigned saved_sample_mask;
 
-   int saved_num_sampler_states;
+   unsigned saved_num_sampler_states;
    void *saved_sampler_states[PIPE_MAX_SAMPLERS];
 
-   int saved_num_sampler_views;
+   unsigned saved_num_sampler_views;
    struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS];
 
-   int saved_num_vertex_buffers;
-   struct pipe_vertex_buffer saved_vertex_buffers[PIPE_MAX_ATTRIBS];
+   unsigned vb_slot;
+   struct pipe_vertex_buffer saved_vertex_buffer;
+
+   unsigned saved_num_so_targets;
+   struct pipe_stream_output_target *saved_so_targets[PIPE_MAX_SO_BUFFERS];
+
+   struct pipe_query *saved_render_cond_query;
+   uint saved_render_cond_mode;
+   boolean saved_render_cond_cond;
 };
 
 /**
@@ -113,6 +138,8 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe);
  */
 void util_blitter_destroy(struct blitter_context *blitter);
 
+void util_blitter_cache_all_shaders(struct blitter_context *blitter);
+
 /**
  * Return the pipe context associated with a blitter context.
  */
@@ -122,65 +149,170 @@ struct pipe_context *util_blitter_get_pipe(struct blitter_context *blitter)
    return blitter->pipe;
 }
 
+/**
+ * Override PIPE_CAP_TEXTURE_MULTISAMPLE as reported by the driver.
+ */
+void util_blitter_set_texture_multisample(struct blitter_context *blitter,
+                                          boolean supported);
+
+/* The default function to draw a rectangle. This can only be used
+ * inside of the draw_rectangle callback if the driver overrides it. */
+void util_blitter_draw_rectangle(struct blitter_context *blitter,
+                                 int x1, int y1, int x2, int y2, float depth,
+                                 enum blitter_attrib_type type,
+                                 const union pipe_color_union *attrib);
+
+
 /*
- * These CSOs must be saved before any of the following functions is called:
- * - blend state
- * - depth stencil alpha state
- * - rasterizer state
+ * These states must be saved before any of the following functions are called:
+ * - vertex buffers
+ * - vertex elements
  * - vertex shader
- * - fragment shader
+ * - geometry shader (if supported)
+ * - stream output targets (if supported)
+ * - rasterizer state
  */
 
 /**
  * Clear a specified set of currently bound buffers to specified values.
+ *
+ * These states must be saved in the blitter in addition to the state objects
+ * already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
  */
 void util_blitter_clear(struct blitter_context *blitter,
                         unsigned width, unsigned height,
-                        unsigned num_cbufs,
                         unsigned clear_buffers,
-                        const float *rgba,
+                        const union pipe_color_union *color,
                         double depth, unsigned stencil);
 
+/**
+ * Check if the blitter (with the help of the driver) can blit between
+ * the two resources.
+ * The mask is a combination of the PIPE_MASK_* flags.
+ * Set to PIPE_MASK_RGBAZS if unsure.
+ */
+boolean util_blitter_is_copy_supported(struct blitter_context *blitter,
+                                       const struct pipe_resource *dst,
+                                       const struct pipe_resource *src,
+                                       unsigned mask);
+
+boolean util_blitter_is_blit_supported(struct blitter_context *blitter,
+                                      const struct pipe_blit_info *info);
+
 /**
  * Copy a block of pixels from one surface to another.
  *
- * You can copy from any color format to any other color format provided
- * the former can be sampled and the latter can be rendered to. Otherwise,
- * a software fallback path is taken and both surfaces must be of the same
- * format.
- *
- * The same holds for depth-stencil formats with the exception that stencil
- * cannot be copied unless you set ignore_stencil to FALSE. In that case,
- * a software fallback path is taken and both surfaces must be of the same
- * format.
- *
- * Use pipe_screen->is_format_supported to know your options.
- *
  * These states must be saved in the blitter in addition to the state objects
  * already required to be saved:
- * - framebuffer state
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
  * - fragment sampler states
  * - fragment sampler textures
+ * - framebuffer state
+ * - sample mask
+ */
+void util_blitter_copy_texture(struct blitter_context *blitter,
+                               struct pipe_resource *dst,
+                               unsigned dst_level,
+                               unsigned dstx, unsigned dsty, unsigned dstz,
+                               struct pipe_resource *src,
+                               unsigned src_level,
+                               const struct pipe_box *srcbox, unsigned mask,
+                               boolean copy_all_samples);
+
+/**
+ * This is a generic implementation of pipe->blit, which accepts
+ * sampler/surface views instead of resources.
+ *
+ * The layer and mipmap level are specified by the views.
+ *
+ * Drivers can use this to change resource properties (like format, width,
+ * height) by changing how the views interpret them, instead of changing
+ * pipe_resource directly. This is used to blit resources of formats which
+ * are not renderable.
+ *
+ * src_width0 and src_height0 are sampler_view-private properties that
+ * override pipe_resource. The blitter uses them for computation of texture
+ * coordinates. The dst dimensions are supplied through pipe_surface::width
+ * and height.
+ *
+ * The mask is a combination of the PIPE_MASK_* flags.
+ * Set to PIPE_MASK_RGBAZS if unsure.
+ */
+void util_blitter_blit_generic(struct blitter_context *blitter,
+                               struct pipe_surface *dst,
+                               const struct pipe_box *dstbox,
+                               struct pipe_sampler_view *src,
+                               const struct pipe_box *srcbox,
+                               unsigned src_width0, unsigned src_height0,
+                               unsigned mask, unsigned filter,
+                               const struct pipe_scissor_state *scissor,
+                               boolean copy_all_samples);
+
+void util_blitter_blit(struct blitter_context *blitter,
+                      const struct pipe_blit_info *info);
+
+/**
+ * Helper function to initialize a view for copy_texture_view.
+ * The parameters must match copy_texture_view.
+ */
+void util_blitter_default_dst_texture(struct pipe_surface *dst_templ,
+                                      struct pipe_resource *dst,
+                                      unsigned dstlevel,
+                                      unsigned dstz);
+
+/**
+ * Helper function to initialize a view for copy_texture_view.
+ * The parameters must match copy_texture_view.
+ */
+void util_blitter_default_src_texture(struct pipe_sampler_view *src_templ,
+                                      struct pipe_resource *src,
+                                      unsigned srclevel);
+
+/**
+ * Copy data from one buffer to another using the Stream Output functionality.
+ * 4-byte alignment is required, otherwise software fallback is used.
  */
-void util_blitter_copy_region(struct blitter_context *blitter,
+void util_blitter_copy_buffer(struct blitter_context *blitter,
                               struct pipe_resource *dst,
-                              unsigned dstlevel,
-                              unsigned dstx, unsigned dsty, unsigned dstz,
+                              unsigned dstx,
                               struct pipe_resource *src,
-                              unsigned srclevel,
-                              const struct pipe_box *srcbox,
-                              boolean ignore_stencil);
+                              unsigned srcx,
+                              unsigned size);
+
+/**
+ * Clear the contents of a buffer using the Stream Output functionality.
+ * 4-byte alignment is required.
+ *
+ * "num_channels" can be 1, 2, 3, or 4, and specifies if the clear value is
+ * R, RG, RGB, or RGBA.
+ *
+ * For each element, only "num_channels" components of "clear_value" are
+ * copied to the buffer, then the offset is incremented by num_channels*4.
+ */
+void util_blitter_clear_buffer(struct blitter_context *blitter,
+                               struct pipe_resource *dst,
+                               unsigned offset, unsigned size,
+                               unsigned num_channels,
+                               const union pipe_color_union *clear_value);
 
 /**
  * Clear a region of a (color) surface to a constant value.
  *
  * These states must be saved in the blitter in addition to the state objects
  * already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
  * - framebuffer state
  */
 void util_blitter_clear_render_target(struct blitter_context *blitter,
                                       struct pipe_surface *dst,
-                                      const float *rgba,
+                                      const union pipe_color_union *color,
                                       unsigned dstx, unsigned dsty,
                                       unsigned width, unsigned height);
 
@@ -190,6 +322,9 @@ void util_blitter_clear_render_target(struct blitter_context *blitter,
  *
  * These states must be saved in the blitter in addition to the state objects
  * already required to be saved:
+ * - fragment shader
+ * - depth stencil alpha state
+ * - blend state
  * - framebuffer state
  */
 void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
@@ -200,20 +335,46 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
                                       unsigned dstx, unsigned dsty,
                                       unsigned width, unsigned height);
 
-void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
-                                      struct pipe_surface *dstsurf);
+/* The following functions are customized variants of the clear functions.
+ * Some drivers use them internally to do things like MSAA resolve
+ * and resource decompression. It usually consists of rendering a full-screen
+ * quad with a special blend or DSA state.
+ */
+
+/* Used by r300g for depth decompression. */
+void util_blitter_custom_clear_depth(struct blitter_context *blitter,
+                                     unsigned width, unsigned height,
+                                     double depth, void *custom_dsa);
 
+/* Used by r600g for depth decompression. */
 void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
                                       struct pipe_surface *zsurf,
                                       struct pipe_surface *cbsurf,
+                                      unsigned sample_mask,
                                       void *dsa_stage, float depth);
 
+/* Used by r600g for color decompression. */
+void util_blitter_custom_color(struct blitter_context *blitter,
+                               struct pipe_surface *dstsurf,
+                               void *custom_blend);
+
+/* Used by r600g for MSAA color resolve. */
+void util_blitter_custom_resolve_color(struct blitter_context *blitter,
+                                       struct pipe_resource *dst,
+                                       unsigned dst_level,
+                                       unsigned dst_layer,
+                                       struct pipe_resource *src,
+                                       unsigned src_layer,
+                                      unsigned sampled_mask,
+                                       void *custom_blend,
+                                       enum pipe_format format);
+
 /* The functions below should be used to save currently bound constant state
  * objects inside a driver. The objects are automatically restored at the end
  * of the util_blitter_{clear, copy_region, fill_region} functions and then
  * forgotten.
  *
- * CSOs not listed here are not affected by util_blitter. */
+ * States not listed here are not affected by util_blitter. */
 
 static INLINE
 void util_blitter_save_blend(struct blitter_context *blitter,
@@ -264,6 +425,13 @@ void util_blitter_save_vertex_shader(struct blitter_context *blitter,
    blitter->saved_vs = vs;
 }
 
+static INLINE
+void util_blitter_save_geometry_shader(struct blitter_context *blitter,
+                                       void *gs)
+{
+   blitter->saved_gs = gs;
+}
+
 static INLINE
 void util_blitter_save_framebuffer(struct blitter_context *blitter,
                                    const struct pipe_framebuffer_state *state)
@@ -280,16 +448,16 @@ void util_blitter_save_viewport(struct blitter_context *blitter,
 }
 
 static INLINE
-void util_blitter_save_clip(struct blitter_context *blitter,
-                            struct pipe_clip_state *state)
+void util_blitter_save_scissor(struct blitter_context *blitter,
+                               struct pipe_scissor_state *state)
 {
-   blitter->saved_clip = *state;
+   blitter->saved_scissor = *state;
 }
 
 static INLINE
 void util_blitter_save_fragment_sampler_states(
                   struct blitter_context *blitter,
-                  int num_sampler_states,
+                  unsigned num_sampler_states,
                   void **sampler_states)
 {
    assert(num_sampler_states <= Elements(blitter->saved_sampler_states));
@@ -301,7 +469,7 @@ void util_blitter_save_fragment_sampler_states(
 
 static INLINE void
 util_blitter_save_fragment_sampler_views(struct blitter_context *blitter,
-                                         int num_views,
+                                         unsigned num_views,
                                          struct pipe_sampler_view **views)
 {
    unsigned i;
@@ -314,17 +482,46 @@ util_blitter_save_fragment_sampler_views(struct blitter_context *blitter,
 }
 
 static INLINE void
-util_blitter_save_vertex_buffers(struct blitter_context *blitter,
-                                         int num_vertex_buffers,
-                                         struct pipe_vertex_buffer *vertex_buffers)
+util_blitter_save_vertex_buffer_slot(struct blitter_context *blitter,
+                                     struct pipe_vertex_buffer *vertex_buffers)
 {
-   assert(num_vertex_buffers <= Elements(blitter->saved_vertex_buffers));
+   pipe_resource_reference(&blitter->saved_vertex_buffer.buffer,
+                           vertex_buffers[blitter->vb_slot].buffer);
+   memcpy(&blitter->saved_vertex_buffer, &vertex_buffers[blitter->vb_slot],
+          sizeof(struct pipe_vertex_buffer));
+}
 
-   blitter->saved_num_vertex_buffers = 0;
-   util_copy_vertex_buffers(blitter->saved_vertex_buffers,
-                            (unsigned*)&blitter->saved_num_vertex_buffers,
-                            vertex_buffers,
-                            num_vertex_buffers);
+static INLINE void
+util_blitter_save_so_targets(struct blitter_context *blitter,
+                             unsigned num_targets,
+                             struct pipe_stream_output_target **targets)
+{
+   unsigned i;
+   assert(num_targets <= Elements(blitter->saved_so_targets));
+
+   blitter->saved_num_so_targets = num_targets;
+   for (i = 0; i < num_targets; i++)
+      pipe_so_target_reference(&blitter->saved_so_targets[i],
+                               targets[i]);
+}
+
+static INLINE void
+util_blitter_save_sample_mask(struct blitter_context *blitter,
+                              unsigned sample_mask)
+{
+   blitter->is_sample_mask_saved = TRUE;
+   blitter->saved_sample_mask = sample_mask;
+}
+
+static INLINE void
+util_blitter_save_render_condition(struct blitter_context *blitter,
+                                   struct pipe_query *query,
+                                   boolean condition,
+                                   uint mode)
+{
+   blitter->saved_render_cond_query = query;
+   blitter->saved_render_cond_mode = mode;
+   blitter->saved_render_cond_cond = condition;
 }
 
 #ifdef __cplusplus