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SWVertexLoader: fix truncated components

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This commit is contained in:
Tillmann Karras
2015-03-14 10:15:19 +01:00
parent 49ae99ffc9
commit 5a51bc10e5
1 changed files with 9 additions and 3 deletions
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12
Source/Core/VideoBackends/Software/SWVertexLoader.cpp
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@ -100,16 +100,17 @@ static T ReadNormalized(I value)
} }
template <typename T, bool swap = false> template <typename T, bool swap = false>
static void ReadVertexAttribute(T* dst, DataReader src, const AttributeFormat& format, int base_component, int max_components, bool reverse) static void ReadVertexAttribute(T* dst, DataReader src, const AttributeFormat& format, int base_component, int components, bool reverse)
{ {
if (format.enable) if (format.enable)
{ {
src.Skip(format.offset); src.Skip(format.offset);
src.Skip(base_component * (1<<(format.type>>1))); src.Skip(base_component * (1<<(format.type>>1)));
for (int i = 0; i < std::min(format.components - base_component, max_components); i++) int i;
for (i = 0; i < std::min(format.components - base_component, components); i++)
{ {
int i_dst = reverse ? max_components - i - 1 : i; int i_dst = reverse ? components - i - 1 : i;
switch (format.type) switch (format.type)
{ {
case VAR_UNSIGNED_BYTE: case VAR_UNSIGNED_BYTE:
@ -131,6 +132,11 @@ static void ReadVertexAttribute(T* dst, DataReader src, const AttributeFormat& f
_assert_msg_(VIDEO, !format.integer || format.type != VAR_FLOAT, "only non-float values are allowed to be streamed as integer"); _assert_msg_(VIDEO, !format.integer || format.type != VAR_FLOAT, "only non-float values are allowed to be streamed as integer");
} }
for (; i < components; i++)
{
int i_dst = reverse ? components - i - 1 : i;
dst[i_dst] = i == 3;
}
} }
} }