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* Finally the overlay looks like an overlay. It took me almost a day to realize that

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the Intel chip obviously cannot do overlays in B_RGB16 - even though it pretends
  to be able to do that.
* B_YCbCr422 seems to work, though, I haven't tested any other spaces for now, and
  I somewhat doubt they will work. It's all green, though, and the scaling doesn't
  seem to be correct - that we be solvable, though :)
* There aren't any bounds checks (so don't move the window out of the screen), and
  also the overlay_view offsets are ignored.
* Scaling and moving is now detected, and there is always as little work done as
  possible to reduce the workload on buffer switches (the most common case).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17315 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2006-05-04 09:08:26 +00:00
parent 3279f3b055
commit 6a3543db2a
3 changed files with 150 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files
headers/private/graphics/intel_extreme/intel_extreme.h
+37 -6
View File
@@ -218,6 +218,7 @@ struct intel_free_graphics_memory {
#define COMMAND_OVERLAY_CONTINUE (0 << 21)
#define COMMAND_OVERLAY_ON (1 << 21)
#define COMMAND_OVERLAY_OFF (2 << 21)
#define OVERLAY_UPDATE_COEFFICIENTS 0x1
// overlay
@@ -233,13 +234,21 @@ struct intel_free_graphics_memory {
#define INTEL_OVERLAY_GAMMA_0 0x30024
struct overlay_scale {
uint32 vertical_scale_fraction : 12;
uint32 _reserved0 : 1;
uint32 horizontal_downscale_factor : 3;
uint32 _reserved1 : 1;
uint32 _reserved0 : 3;
uint32 horizontal_scale_fraction : 12;
uint32 _reserved1 : 1;
uint32 horizontal_downscale_factor : 3;
uint32 _reserved2 : 1;
uint32 vertical_scale_fraction : 12;
};
#define OVERLAY_FORMAT_RGB15 0x2
#define OVERLAY_FORMAT_RGB16 0x3
#define OVERLAY_FORMAT_RGB32 0x1
#define OVERLAY_FORMAT_YCbCr422 0x8
#define OVERLAY_FORMAT_YCbCr411 0x9
#define OVERLAY_FORMAT_YCbCr420 0xc
// The real overlay registers are written to using an update buffer
struct overlay_registers {
@@ -249,14 +258,19 @@ struct overlay_registers {
uint32 buffer_v0;
uint32 buffer_u1;
uint32 buffer_v1;
// (0x18) OSTRIDE - overlay stride
uint16 stride_rgb;
uint16 stride_uv;
// (0x1c) YRGB_VPH - Y/RGB vertical phase
uint16 vertical_phase0_rgb;
uint16 vertical_phase1_rgb;
// (0x20) UV_VPH - UV vertical phase
uint16 vertical_phase0_uv;
uint16 vertical_phase1_uv;
// (0x24) HORZ_PH - horizontal phase
uint16 horizontal_phase_rgb;
uint16 horizontal_phase_uv;
// (0x28) INIT_PHS - initial phase shift
uint32 initial_vertical_phase0_shift_rgb0 : 4;
uint32 initial_vertical_phase1_shift_rgb0 : 4;
uint32 initial_horizontal_phase_shift_rgb0 : 4;
@@ -264,12 +278,16 @@ struct overlay_registers {
uint32 initial_vertical_phase1_shift_uv : 4;
uint32 initial_horizontal_phase_shift_uv : 4;
uint32 _reserved0 : 8;
// (0x2c) DWINPOS - destination window position
uint16 window_left;
uint16 window_top;
// (0x30) DWINSZ - destination window size
uint16 window_width;
uint16 window_height;
// (0x34) SWIDTH - source width
uint16 source_width_rgb;
uint16 source_width_uv;
// (0x38) SWITDHSW - source width in 8 byte steps
uint16 source_bytes_per_row_rgb;
uint16 source_bytes_per_row_uv;
uint16 source_height_rgb;
@@ -319,7 +337,8 @@ struct overlay_registers {
uint32 yuv_to_rgb_bypass : 1;
uint32 _reserved12 : 11;
uint32 gamma2_enabled : 1;
uint32 _reserved13 : 2;
uint32 _reserved13 : 1;
uint32 select_pipe : 1;
uint32 slot_time : 8;
uint32 _reserved14 : 5;
// (0x68) OCOMD - overlay command
@@ -332,7 +351,7 @@ struct overlay_registers {
uint32 tv_flip_field_enabled : 1;
uint32 _reserved16 : 1;
uint32 tv_flip_field_parity : 1;
uint32 _reserved17 : 4;
uint32 source_format : 4;
uint32 ycbcr422_order : 2;
uint32 _reserved18 : 1;
uint32 mirroring_mode : 2;
@@ -353,6 +372,18 @@ struct overlay_registers {
// (0xa4) UVSCALEV - vertical downscale
uint16 vertical_scale_rgb;
uint16 vertical_scale_uv;
uint32 _reserved22[86];
// (0x200) polyphase filter coefficients
uint16 vertical_coefficients_rgb[128];
uint16 horizontal_coefficients_rgb[128];
uint32 _reserved23[64];
// (0x500)
uint16 vertical_coefficients_uv[128];
uint16 horizontal_coefficients_uv[128];
};
//----------------------------------------------------------