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authortruelight <truelight@openttd.org>2007-06-19 15:04:08 +0000
committertruelight <truelight@openttd.org>2007-06-19 15:04:08 +0000
commit1c4760ee06fb632d27648175f7bab433b32c1892 (patch)
treeaacf68dc44607bc64afffcb18f3bcbf65d05d654 /src/blitter
parent9ad02c11c62bec4027f36fadbab9d81180dc2721 (diff)
downloadopenttd-1c4760ee06fb632d27648175f7bab433b32c1892.tar.xz
(svn r10216) -Fix: palette animation always redid all palette entries, where in fact only a few indexes were needed
-Codechange: allow blitters to handle palette animation internally or even disable it; 8bpp uses video-backend for palette animation
Diffstat (limited to 'src/blitter')
-rw-r--r--src/blitter/32bpp_base.cpp10
-rw-r--r--src/blitter/32bpp_base.hpp2
-rw-r--r--src/blitter/8bpp_base.cpp10
-rw-r--r--src/blitter/8bpp_base.hpp2
-rw-r--r--src/blitter/base.hpp20
-rw-r--r--src/blitter/null.hpp2
6 files changed, 46 insertions, 0 deletions
diff --git a/src/blitter/32bpp_base.cpp b/src/blitter/32bpp_base.cpp
index f788b56a7..a4e24cae9 100644
--- a/src/blitter/32bpp_base.cpp
+++ b/src/blitter/32bpp_base.cpp
@@ -177,3 +177,13 @@ int Blitter_32bppBase::BufferSize(int width, int height)
{
return width * height * sizeof(uint32);
}
+
+void Blitter_32bppBase::PaletteAnimate(uint start, uint count)
+{
+ /* By default, 32bpp doesn't have palette animation */
+}
+
+Blitter::PaletteAnimation Blitter_32bppBase::UsePaletteAnimation()
+{
+ return Blitter::PALETTE_ANIMATION_NONE;
+}
diff --git a/src/blitter/32bpp_base.hpp b/src/blitter/32bpp_base.hpp
index 0149330d8..66d7e7529 100644
--- a/src/blitter/32bpp_base.hpp
+++ b/src/blitter/32bpp_base.hpp
@@ -23,6 +23,8 @@ public:
/* virtual */ void MoveBuffer(void *video_dst, const void *video_src, int width, int height);
/* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y);
/* virtual */ int BufferSize(int width, int height);
+ /* virtual */ void PaletteAnimate(uint start, uint count);
+ /* virtual */ Blitter::PaletteAnimation UsePaletteAnimation();
static inline uint32 LookupColourInPalette(uint8 index) {
#define ARGB(a, r, g, b) ((((a) << 24) & 0xFF000000) | (((r) << 16) & 0x00FF0000) | (((g) << 8) & 0x0000FF00) | ((b) & 0x000000FF))
diff --git a/src/blitter/8bpp_base.cpp b/src/blitter/8bpp_base.cpp
index 42da38937..6fe60ea18 100644
--- a/src/blitter/8bpp_base.cpp
+++ b/src/blitter/8bpp_base.cpp
@@ -182,3 +182,13 @@ int Blitter_8bppBase::BufferSize(int width, int height)
{
return width * height;
}
+
+void Blitter_8bppBase::PaletteAnimate(uint start, uint count)
+{
+ /* Video backend takes care of the palette animation */
+}
+
+Blitter::PaletteAnimation Blitter_8bppBase::UsePaletteAnimation()
+{
+ return Blitter::PALETTE_ANIMATION_VIDEO_BACKEND;
+}
diff --git a/src/blitter/8bpp_base.hpp b/src/blitter/8bpp_base.hpp
index 3b313bb30..f189ffdcf 100644
--- a/src/blitter/8bpp_base.hpp
+++ b/src/blitter/8bpp_base.hpp
@@ -23,6 +23,8 @@ public:
/* virtual */ void MoveBuffer(void *video_dst, const void *video_src, int width, int height);
/* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y);
/* virtual */ int BufferSize(int width, int height);
+ /* virtual */ void PaletteAnimate(uint start, uint count);
+ /* virtual */ Blitter::PaletteAnimation UsePaletteAnimation();
};
#endif /* BLITTER_8BPP_BASE_HPP */
diff --git a/src/blitter/base.hpp b/src/blitter/base.hpp
index 90e1dde03..268e13b17 100644
--- a/src/blitter/base.hpp
+++ b/src/blitter/base.hpp
@@ -31,6 +31,12 @@ public:
int pitch; ///< The pitch of the destination buffer
};
+ enum PaletteAnimation {
+ PALETTE_ANIMATION_NONE, ///< No palette animation
+ PALETTE_ANIMATION_VIDEO_BACKEND, ///< Palette animation should be done by video backend (8bpp only!)
+ PALETTE_ANIMATION_BLITTER, ///< The blitter takes care of the palette animation
+ };
+
typedef void *AllocatorProc(size_t size);
/**
@@ -158,6 +164,20 @@ public:
*/
virtual int BufferSize(int width, int height) = 0;
+ /**
+ * Called when the 8bpp palette is changed; you should redraw all pixels on the screen that
+ * are equal to the 8bpp palette indexes 'start' to 'start + count'.
+ * @param start The start index in the 8bpp palette.
+ * @param count The amount of indexes that are (possible) changed.
+ */
+ virtual void PaletteAnimate(uint start, uint count) = 0;
+
+ /**
+ * Check if the blitter uses palette animation at all.
+ * @return True if it uses palette animation.
+ */
+ virtual Blitter::PaletteAnimation UsePaletteAnimation() = 0;
+
virtual ~Blitter() { }
};
diff --git a/src/blitter/null.hpp b/src/blitter/null.hpp
index 6c519b023..356385726 100644
--- a/src/blitter/null.hpp
+++ b/src/blitter/null.hpp
@@ -24,6 +24,8 @@ public:
/* virtual */ void MoveBuffer(void *video_dst, const void *video_src, int width, int height) {};
/* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) {};
/* virtual */ int BufferSize(int width, int height) { return 0; };
+ /* virtual */ void PaletteAnimate(uint start, uint count) { };
+ /* virtual */ Blitter::PaletteAnimation UsePaletteAnimation() { return Blitter::PALETTE_ANIMATION_NONE; };
};
class FBlitter_Null: public BlitterFactory<FBlitter_Null> {